/////////////////////////////////////////////////////////////////////////////
-/**
- Background styles. See wxWindow::SetBackgroundStyle().
-*/
-enum wxBackgroundStyle
-{
- /// Use the default background, as determined by
- /// the system or the current theme.
- wxBG_STYLE_SYSTEM,
-
- /// Use a solid colour for the background, this style is set automatically if you call
- /// SetBackgroundColour() so you only need to set it explicitly if you had
- /// changed the background style to something else before.
- wxBG_STYLE_COLOUR,
-
- /// Don't draw the background at all, it's supposed that it is drawn by
- /// the user-defined erase background event handler.
- /// This style should be used to avoid flicker when the background is entirely
- /// custom-drawn.
- wxBG_STYLE_CUSTOM,
-
- /// The background is (partially) transparent,this style is automatically set if you call
- /// SetTransparent() which is used to set the transparency level.
- wxBG_STYLE_TRANSPARENT
-};
-
-
/**
Valid values for wxWindow::ShowWithEffect() and wxWindow::HideWithEffect().
*/
};
-/**
- Flags which can be used in wxWindow::UpdateWindowUI().
-*/
-enum wxUpdateUI
-{
- wxUPDATE_UI_NONE,
- wxUPDATE_UI_RECURSE,
- wxUPDATE_UI_FROMIDLE /**< Invoked from On(Internal)Idle */
-};
-
-
/**
@class wxWindow
@beginExtraStyleTable
@style{wxWS_EX_VALIDATE_RECURSIVELY}
- By default, Validate/TransferDataTo/FromWindow() only work on
- direct children of the window (compatible behaviour). Set this flag
- to make them recursively descend into all subwindows.
+ By default, wxWindow::Validate(), wxWindow::TransferDataTo() and
+ wxWindow::TransferDataFromWindow() only work on
+ direct children of the window (compatible behaviour).
+ Set this flag to make them recursively descend into all subwindows.
@style{wxWS_EX_BLOCK_EVENTS}
wxCommandEvents and the objects of the derived classes are
forwarded to the parent window and so on recursively by default.
Using this flag for the given window allows to block this
propagation at this window, i.e. prevent the events from being
propagated further upwards. Dialogs have this flag on by default
- for the reasons explained in the @ref overview_eventhandling "Event Handling Overview".
+ for the reasons explained in the @ref overview_events.
@style{wxWS_EX_TRANSIENT}
Don't use this window as an implicit parent for the other windows:
this must be used with transient windows as otherwise there is the
@style{wxWS_EX_CONTEXTHELP}
Under Windows, puts a query button on the caption. When pressed,
Windows will go into a context-sensitive help mode and wxWidgets
- will send a wxEVT_HELP event if the user clicked on an application window.
- This style cannot be used together with wxMAXIMIZE_BOX or wxMINIMIZE_BOX, so
- these two styles are automatically turned of if this one is used.
+ will send a @c wxEVT_HELP event if the user clicked on an application window.
+ This style cannot be used (because of the underlying native behaviour)
+ together with @c wxMAXIMIZE_BOX or @c wxMINIMIZE_BOX, so these two styles
+ are automatically turned off if this one is used.
@style{wxWS_EX_PROCESS_IDLE}
This window should always process idle events, even if the mode set
- by wxIdleEvent::SetMode is wxIDLE_PROCESS_SPECIFIED.
+ by wxIdleEvent::SetMode is @c wxIDLE_PROCESS_SPECIFIED.
@style{wxWS_EX_PROCESS_UI_UPDATES}
This window should always process UI update events, even if the
- mode set by wxUpdateUIEvent::SetMode is wxUPDATE_UI_PROCESS_SPECIFIED.
+ mode set by wxUpdateUIEvent::SetMode is @c wxUPDATE_UI_PROCESS_SPECIFIED.
@endExtraStyleTable
+ @beginEventEmissionTable
+ @event{EVT_ACTIVATE(id, func)}
+ Process a @c wxEVT_ACTIVATE event. See wxActivateEvent.
+ @event{EVT_CHILD_FOCUS(func)}
+ Process a @c wxEVT_CHILD_FOCUS event. See wxChildFocusEvent.
+ @event{EVT_CONTEXT_MENU(func)}
+ A right click (or other context menu command depending on platform) has been detected.
+ See wxContextMenuEvent.
+ @event{EVT_HELP(id, func)}
+ Process a @c wxEVT_HELP event. See wxHelpEvent.
+ @event{EVT_HELP_RANGE(id1, id2, func)}
+ Process a @c wxEVT_HELP event for a range of ids. See wxHelpEvent.
+ @event{EVT_DROP_FILES(func)}
+ Process a @c wxEVT_DROP_FILES event. See wxDropFilesEvent.
+ @event{EVT_ERASE_BACKGROUND(func)}
+ Process a @c wxEVT_ERASE_BACKGROUND event. See wxEraseEvent.
+ @event{EVT_SET_FOCUS(func)}
+ Process a @c wxEVT_SET_FOCUS event. See wxFocusEvent.
+ @event{EVT_KILL_FOCUS(func)}
+ Process a @c wxEVT_KILL_FOCUS event. See wxFocusEvent.
+ @event{EVT_IDLE(func)}
+ Process a @c wxEVT_IDLE event. See wxIdleEvent.
+ @event{EVT_JOY_*(func)}
+ Processes joystick events. See wxJoystickEvent.
+ @event{EVT_KEY_DOWN(func)}
+ Process a @c wxEVT_KEY_DOWN event (any key has been pressed).
+ See wxKeyEvent.
+ @event{EVT_KEY_UP(func)}
+ Process a @c wxEVT_KEY_UP event (any key has been released).
+ @event{EVT_CHAR(func)}
+ Process a @c wxEVT_CHAR event.
+ See wxKeyEvent.
+ @event{EVT_MOUSE_CAPTURE_LOST(func)}
+ Process a @c wxEVT_MOUSE_CAPTURE_LOST event. See wxMouseCaptureLostEvent.
+ @event{EVT_MOUSE_CAPTURE_CHANGED(func)}
+ Process a @c wxEVT_MOUSE_CAPTURE_CHANGED event. See wxMouseCaptureChangedEvent.
+ @event{EVT_MOUSE_*(func)}
+ See wxMouseEvent.
+ @event{EVT_PAINT(func)}
+ Process a @c wxEVT_PAINT event. See wxPaintEvent.
+ @event{EVT_POWER_*(func)}
+ The system power state changed. See wxPowerEvent.
+ @event{EVT_SCROLLWIN_*(func)}
+ Process scroll events. See wxScrollWinEvent.
+ @event{EVT_SET_CURSOR(func)}
+ Process a @c wxEVT_SET_CURSOR event. See wxSetCursorEvent.
+ @event{EVT_SHOW(func)}
+ Process a @c wxEVT_SHOW event. See wxShowEvent.
+ @event{EVT_SIZE(func)}
+ Process a @c wxEVT_SIZE event. See wxSizeEvent.
+ @event{EVT_SYS_COLOUR_CHANGED(func)}
+ Process a @c wxEVT_SYS_COLOUR_CHANGED event. See wxSysColourChangedEvent.
+ @endEventTable
+
@library{wxcore}
@category{miscwnd}
- @see @ref overview_eventhandling "Event handling overview",
- @ref overview_windowsizing "Window sizing overview"
+ @see @ref overview_events, @ref overview_windowsizing
*/
class wxWindow : public wxEvtHandler
{
*/
virtual ~wxWindow();
+
+ /**
+ @name Focus functions
+
+ See also the static function FindFocus().
+ */
+ //@{
+
/**
This method may be overridden in the derived classes to return @false to
indicate that this control doesn't accept input at all (i.e. behaves like
*/
virtual bool AcceptsFocusRecursively() const;
+ /**
+ Returns @true if the window (or in case of composite controls, its main
+ child window) has focus.
+
+ @see FindFocus()
+ */
+ virtual bool HasFocus() const;
+
+ /**
+ This method is only implemented by ports which have support for
+ native TAB traversal (such as GTK+ 2.0).
+
+ It is called by wxWidgets' container control code to give the native
+ system a hint when doing TAB traversal. A call to this does not disable
+ or change the effect of programmatically calling SetFocus().
+
+ @see wxFocusEvent, wxPanel::SetFocus, wxPanel::SetFocusIgnoringChildren
+ */
+ virtual void SetCanFocus(bool canFocus);
+
+ /**
+ This sets the window to receive keyboard input.
+
+ @see HasFocus(), wxFocusEvent, wxPanel::SetFocus,
+ wxPanel::SetFocusIgnoringChildren
+ */
+ virtual void SetFocus();
+
+ /**
+ This function is called by wxWidgets keyboard navigation code when the user
+ gives the focus to this window from keyboard (e.g. using @c TAB key).
+
+ By default this method simply calls SetFocus() but
+ can be overridden to do something in addition to this in the derived classes.
+ */
+ virtual void SetFocusFromKbd();
+
+ //@}
+
+
+ /**
+ @name Child management functions
+ */
+ //@{
+
/**
Adds a child window. This is called automatically by window creation
functions so should not be required by the application programmer.
virtual void AddChild(wxWindow* child);
/**
- Call this function to force one or both scrollbars to be always shown, even if
- the window is big enough to show its entire contents without scrolling.
-
- @since 2.9.0
-
- @param hflag
- Whether the horizontal scroll bar should always be visible.
- @param vflag
- Whether the vertical scroll bar should always be visible.
+ Destroys all children of a window. Called automatically by the destructor.
+ */
+ bool DestroyChildren();
- @remarks This function is currently only implemented under Mac/Carbon.
+ /**
+ Find a child of this window, by @a id.
+ May return @a this if it matches itself.
*/
- void AlwaysShowScrollbars(bool hflag, bool vflag);
+ wxWindow* FindWindow(long id) const;
/**
- Sets the cached best size value.
+ Find a child of this window, by name.
+ May return @a this if it matches itself.
*/
- void CacheBestSize(const wxSize& size) const;
+ wxWindow* FindWindow(const wxString& name) const;
/**
- Returns @true if the system supports transparent windows and calling
- SetTransparent() may succeed. If this function returns @false, transparent
- windows are definitely not supported by the current system.
+ Returns a reference to the list of the window's children. @c wxWindowList
+ is a type-safe wxList-like class whose elements are of type @c wxWindow*.
*/
- virtual bool CanSetTransparent();
+ wxWindowList& GetChildren();
/**
- Directs all mouse input to this window.
- Call ReleaseMouse() to release the capture.
+ @overload
+ */
+ const wxWindowList& GetChildren() const;
- Note that wxWidgets maintains the stack of windows having captured the mouse
- and when the mouse is released the capture returns to the window which had had
- captured it previously and it is only really released if there were no previous
- window. In particular, this means that you must release the mouse as many times
- as you capture it, unless the window receives the wxMouseCaptureLostEvent event.
+ /**
+ Removes a child window.
- Any application which captures the mouse in the beginning of some operation
- must handle wxMouseCaptureLostEvent and cancel this operation when it receives
- the event. The event handler must not recapture mouse.
+ This is called automatically by window deletion functions so should not
+ be required by the application programmer.
+ Notice that this function is mostly internal to wxWidgets and shouldn't be
+ called by the user code.
- @see ReleaseMouse(), wxMouseCaptureLostEvent
+ @param child
+ Child window to remove.
*/
- void CaptureMouse();
+ virtual void RemoveChild(wxWindow* child);
+
+ //@}
+
/**
- A synonym for Centre().
+ @name Sibling and parent management functions
*/
- void Center(int direction);
+ //@{
/**
- A synonym for CentreOnParent().
+ Returns the grandparent of a window, or @NULL if there isn't one.
*/
- void CenterOnParent(int direction);
+ wxWindow* GetGrandParent() const;
/**
- Centres the window.
+ Returns the next window after this one among the parent children or @NULL
+ if this window is the last child.
- @param direction
- Specifies the direction for the centering. May be wxHORIZONTAL, wxVERTICAL
- or wxBOTH. It may also include wxCENTRE_ON_SCREEN flag
- if you want to center the window on the entire screen and not on its
- parent window.
+ @since 2.8.8
- @remarks If the window is a top level one (i.e. doesn't have a parent),
- it will be centered relative to the screen anyhow.
+ @see GetPrevSibling()
+ */
+ wxWindow* GetNextSibling() const;
- @see Center()
+ /**
+ Returns the parent of the window, or @NULL if there is no parent.
*/
- void Centre(int direction = wxBOTH);
+ wxWindow* GetParent() const;
/**
- Centres the window on its parent. This is a more readable synonym for Centre().
+ Returns the previous window before this one among the parent children or @c
+ @NULL if this window is the first child.
- @param direction
- Specifies the direction for the centering. May be wxHORIZONTAL, wxVERTICAL
- or wxBOTH.
+ @since 2.8.8
- @remarks This methods provides for a way to center top level windows over
- their parents instead of the entire screen. If there
- is no parent or if the window is not a top level
- window, then behaviour is the same as Centre().
+ @see GetNextSibling()
+ */
+ wxWindow* GetPrevSibling() const;
+ /**
+ Reparents the window, i.e the window will be removed from its
+ current parent window (e.g. a non-standard toolbar in a wxFrame)
+ and then re-inserted into another.
- @see wxTopLevelWindow::CentreOnScreen
+ @param newParent
+ New parent.
*/
- void CentreOnParent(int direction = wxBOTH);
+ virtual bool Reparent(wxWindow* newParent);
+
+ //@}
+
/**
- Clears the window by filling it with the current background colour. Does not
- cause an erase background event to be generated.
+ @name Scrolling and scrollbars functions
+
+ Note that these methods don't work with native controls which don't use
+ wxWidgets scrolling framework (i.e. don't derive from wxScrolledWindow).
*/
- virtual void ClearBackground();
+ //@{
/**
- Converts to screen coordinates from coordinates relative to this window.
+ Call this function to force one or both scrollbars to be always shown, even if
+ the window is big enough to show its entire contents without scrolling.
- @param x
- A pointer to a integer value for the x coordinate. Pass the client
- coordinate in, and a screen coordinate will be passed out.
- @param y
- A pointer to a integer value for the y coordinate. Pass the client
- coordinate in, and a screen coordinate will be passed out.
+ @since 2.9.0
- @beginWxPythonOnly
- In place of a single overloaded method name, wxPython implements the following methods:
- - ClientToScreen(point): Accepts and returns a wxPoint
- - ClientToScreenXY(x, y): Returns a 2-tuple, (x, y)
- @endWxPythonOnly
+ @param hflag
+ Whether the horizontal scroll bar should always be visible.
+ @param vflag
+ Whether the vertical scroll bar should always be visible.
+
+ @remarks This function is currently only implemented under Mac/Carbon.
*/
- void ClientToScreen(int* x, int* y) const;
+ virtual void AlwaysShowScrollbars(bool hflag = true, bool vflag = true);
/**
- Converts to screen coordinates from coordinates relative to this window.
+ Returns the built-in scrollbar position.
- @param pt
- The client position for the second form of the function.
+ @see SetScrollbar()
*/
- wxPoint ClientToScreen(const wxPoint& pt) const;
+ virtual int GetScrollPos(int orientation) const;
/**
- Converts client area size @a size to corresponding window size.
+ Returns the built-in scrollbar range.
- In other words, the returned value is what would GetSize() return if this
- window had client area of given size. Components with wxDefaultCoord
- value are left unchanged. Note that the conversion is not always
- exact, it assumes that non-client area doesn't change and so doesn't
- take into account things like menu bar (un)wrapping or (dis)appearance
- of the scrollbars.
+ @see SetScrollbar()
+ */
+ virtual int GetScrollRange(int orientation) const;
- @since 2.8.8
+ /**
+ Returns the built-in scrollbar thumb size.
- @see WindowToClientSize()
+ @see SetScrollbar()
*/
- virtual wxSize ClientToWindowSize(const wxSize& size) const;
+ virtual int GetScrollThumb(int orientation) const;
/**
- Converts window size @a size to corresponding client area size
- In other words, the returned value is what would GetClientSize() return if
- this window had given window size. Components with wxDefaultCoord value
- are left unchanged.
+ Returns @true if this window has a scroll bar for this orientation.
- Note that the conversion is not always exact, it assumes that
- non-client area doesn't change and so doesn't take into account things
- like menu bar (un)wrapping or (dis)appearance of the scrollbars.
+ @param orient
+ Orientation to check, either wxHORIZONTAL or wxVERTICAL.
+ */
+ bool HasScrollbar(int orient) const;
- @since 2.8.8
+ /**
+ Return whether a scrollbar is always shown.
- @see ClientToWindowSize()
+ @param orient
+ Orientation to check, either wxHORIZONTAL or wxVERTICAL.
+
+ @see AlwaysShowScrollbars()
*/
- virtual wxSize WindowToClientSize(const wxSize& size) const;
+ virtual bool IsScrollbarAlwaysShown(int orient) const;
/**
- This function simply generates a wxCloseEvent whose handler usually tries
- to close the window. It doesn't close the window itself, however.
+ Scrolls the window by the given number of lines down (if @a lines is
+ positive) or up.
- @param force
- @false if the window's close handler should be able to veto the destruction
- of this window, @true if it cannot.
+ @return Returns @true if the window was scrolled, @false if it was already
+ on top/bottom and nothing was done.
- @remarks Close calls the close handler for the window, providing an
- opportunity for the window to choose whether to destroy
- the window. Usually it is only used with the top level
- windows (wxFrame and wxDialog classes) as the others
- are not supposed to have any special OnClose() logic.
- The close handler should check whether the window is being deleted
- forcibly, using wxCloseEvent::CanVeto, in which case it should
- destroy the window using wxWindow::Destroy.
- Note that calling Close does not guarantee that the window will
- be destroyed; but it provides a way to simulate a manual close
- of a window, which may or may not be implemented by destroying
- the window. The default implementation of wxDialog::OnCloseWindow
- does not necessarily delete the dialog, since it will simply
- simulate an wxID_CANCEL event which is handled by the appropriate
- button event handler and may do anything at all.
- To guarantee that the window will be destroyed, call
- wxWindow::Destroy instead
+ @remarks This function is currently only implemented under MSW and
+ wxTextCtrl under wxGTK (it also works for wxScrolled classes
+ under all platforms).
- @see @ref overview_windowdeletion "Window Deletion Overview",
- Destroy(), wxCloseEvent
+ @see ScrollPages()
*/
- bool Close(bool force = false);
+ virtual bool ScrollLines(int lines);
- //@{
/**
- Converts a point or size from dialog units to pixels.
+ Scrolls the window by the given number of pages down (if @a pages is
+ positive) or up.
- For the x dimension, the dialog units are multiplied by the average character
- width and then divided by 4.
- For the y dimension, the dialog units are multiplied by the average character
- height and then divided by 8.
+ @return Returns @true if the window was scrolled, @false if it was already
+ on top/bottom and nothing was done.
- @remarks Dialog units are used for maintaining a dialog's proportions
- even if the font changes.
- You can also use these functions programmatically.
- A convenience macro is defined:
- @code
- #define wxDLG_UNIT(parent, pt) parent->ConvertDialogToPixels(pt)
- @endcode
+ @remarks This function is currently only implemented under MSW and wxGTK.
- @see ConvertPixelsToDialog()
+ @see ScrollLines()
*/
- wxPoint ConvertDialogToPixels(const wxPoint& pt);
- wxSize ConvertDialogToPixels(const wxSize& sz);
- //@}
+ virtual bool ScrollPages(int pages);
- //@{
/**
- Converts a point or size from pixels to dialog units.
-
- For the x dimension, the pixels are multiplied by 4 and then divided by the
- average character width.
- For the y dimension, the pixels are multiplied by 8 and then divided by the
- average character height.
+ Physically scrolls the pixels in the window and move child windows accordingly.
- @remarks Dialog units are used for maintaining a dialog's proportions
- even if the font changes.
+ @param dx
+ Amount to scroll horizontally.
+ @param dy
+ Amount to scroll vertically.
+ @param rect
+ Rectangle to scroll, if it is @NULL, the whole window is
+ scrolled (this is always the case under wxGTK which doesn't support this
+ parameter)
- @see ConvertDialogToPixels()
+ @remarks Note that you can often use wxScrolled instead of using this
+ function directly.
*/
- wxPoint ConvertPixelsToDialog(const wxPoint& pt);
- wxSize ConvertPixelsToDialog(const wxSize& sz);
- //@}
+ virtual void ScrollWindow(int dx, int dy,
+ const wxRect* rect = NULL);
/**
- Destroys the window safely. Use this function instead of the delete operator,
- since different window classes can be destroyed differently. Frames and dialogs
- are not destroyed immediately when this function is called -- they are added
- to a list of windows to be deleted on idle time, when all the window's events
- have been processed. This prevents problems with events being sent to
- non-existent windows.
-
- @return @true if the window has either been successfully deleted, or it
- has been added to the list of windows pending real deletion.
+ Same as #ScrollLines (-1).
*/
- virtual bool Destroy();
+ bool LineUp();
/**
- Destroys all children of a window. Called automatically by the destructor.
+ Same as #ScrollLines (1).
*/
- virtual void DestroyChildren();
+ bool LineDown();
/**
- Returns true if this window is in process of being destroyed.
-
- The top level windows are not deleted immediately but are rather
- scheduled for later destruction to give them time to process any
- pending messages, see Destroy() description.
-
- This function returns @true if this window, or one of its parent
- windows, is scheduled for destruction and can be useful to avoid
- manipulating it as it's usually useless to do something with a window
- which is on the point of disappearing anyhow.
- */
- bool IsBeingDeleted() const;
+ Same as #ScrollPages (-1).
+ */
+ bool PageUp();
/**
- Disables the window. Same as @ref Enable() Enable(@false).
-
- @return Returns @true if the window has been disabled, @false if it had
- been already disabled before the call to this function.
+ Same as #ScrollPages (1).
*/
- bool Disable();
+ bool PageDown();
/**
- Gets the size which best suits the window: for a control, it would be
- the minimal size which doesn't truncate the control, for a panel - the
- same size as it would have after a call to Fit().
+ Sets the position of one of the built-in scrollbars.
- The default implementation of this function is designed for use in container
- windows, such as wxPanel, and works something like this:
- -# If the window has a sizer then it is used to calculate the best size.
- -# Otherwise if the window has layout constraints then those are used to
- calculate the best size.
- -# Otherwise if the window has children then the best size is set to be large
- enough to show all the children.
- -# Otherwise if there are no children then the window's minimal size will be
- used as its best size.
- -# Otherwise if there is no minimal size set, then the current size is used
- for the best size.
+ @param orientation
+ Determines the scrollbar whose position is to be set.
+ May be wxHORIZONTAL or wxVERTICAL.
+ @param pos
+ Position in scroll units.
+ @param refresh
+ @true to redraw the scrollbar, @false otherwise.
- @see @ref overview_windowsizing
+ @remarks This function does not directly affect the contents of the
+ window: it is up to the application to take note of
+ scrollbar attributes and redraw contents accordingly.
+
+ @see SetScrollbar(), GetScrollPos(), GetScrollThumb(), wxScrollBar,
+ wxScrolled
*/
- virtual wxSize DoGetBestSize() const;
+ virtual void SetScrollPos(int orientation, int pos,
+ bool refresh = true);
/**
- Does the window-specific updating after processing the update event.
- This function is called by UpdateWindowUI() in order to check return
- values in the wxUpdateUIEvent and act appropriately.
- For example, to allow frame and dialog title updating, wxWidgets
- implements this function as follows:
+ Sets the scrollbar properties of a built-in scrollbar.
- @code
- // do the window-specific processing after processing the update event
- void wxTopLevelWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
- {
- if ( event.GetSetEnabled() )
- Enable(event.GetEnabled());
+ @param orientation
+ Determines the scrollbar whose page size is to be set.
+ May be wxHORIZONTAL or wxVERTICAL.
+ @param position
+ The position of the scrollbar in scroll units.
+ @param thumbSize
+ The size of the thumb, or visible portion of the scrollbar, in scroll units.
+ @param range
+ The maximum position of the scrollbar. Value of -1 can be used to
+ ask for the scrollbar to be shown but in the disabled state: this
+ can be used to avoid removing the scrollbar even when it is not
+ needed (currently this is only implemented in wxMSW port).
+ @param refresh
+ @true to redraw the scrollbar, @false otherwise.
- if ( event.GetSetText() )
- {
- if ( event.GetText() != GetTitle() )
- SetTitle(event.GetText());
- }
- }
- @endcode
+ @remarks
+ Let's say you wish to display 50 lines of text, using the same font.
+ The window is sized so that you can only see 16 lines at a time.
+ You would use:
+ @code
+ SetScrollbar(wxVERTICAL, 0, 16, 50);
+ @endcode
+ Note that with the window at this size, the thumb position can never
+ go above 50 minus 16, or 34. You can determine how many lines are
+ currently visible by dividing the current view size by the character
+ height in pixels.
+ When defining your own scrollbar behaviour, you will always need
+ to recalculate the scrollbar settings when the window size changes.
+ You could therefore put your scrollbar calculations and SetScrollbar
+ call into a function named AdjustScrollbars, which can be called
+ initially and also from your wxSizeEvent handler function.
+
+ @see @ref overview_scrolling, wxScrollBar, wxScrolled, wxScrollWinEvent
*/
- virtual void DoUpdateWindowUI(wxUpdateUIEvent& event);
+ virtual void SetScrollbar(int orientation, int position,
+ int thumbSize, int range,
+ bool refresh = true);
+ //@}
- /**
- Enables or disables eligibility for drop file events (OnDropFiles).
- @param accept
- If @true, the window is eligible for drop file events.
- If @false, the window will not accept drop file events.
+ /**
+ @name Sizing functions
- @remarks Windows only.
+ See also the protected functions DoGetBestSize() and SetInitialBestSize().
*/
- virtual void DragAcceptFiles(bool accept);
+ //@{
/**
- Enable or disable the window for user input. Note that when a parent window is
- disabled, all of its children are disabled as well and they are reenabled again
- when the parent is.
-
- @param enable
- If @true, enables the window for input. If @false, disables the window.
-
- @return Returns @true if the window has been enabled or disabled, @false
- if nothing was done, i.e. if the window had already
- been in the specified state.
+ Sets the cached best size value.
- @see IsEnabled(), Disable(), wxRadioBox::Enable
+ @see GetBestSize()
*/
- virtual bool Enable(bool enable = true);
+ void CacheBestSize(const wxSize& size) const;
/**
- Finds the window or control which currently has the keyboard focus.
+ Converts client area size @a size to corresponding window size.
- @remarks Note that this is a static function, so it can be called without
- needing a wxWindow pointer.
+ In other words, the returned value is what would GetSize() return if this
+ window had client area of given size. Components with wxDefaultCoord
+ value are left unchanged. Note that the conversion is not always
+ exact, it assumes that non-client area doesn't change and so doesn't
+ take into account things like menu bar (un)wrapping or (dis)appearance
+ of the scrollbars.
- @see SetFocus(), HasFocus()
- */
- static wxWindow* FindFocus();
+ @since 2.8.8
- /**
- Find a child of this window, by @a id.
- May return @a this if it matches itself.
+ @see WindowToClientSize()
*/
- wxWindow* FindWindow(long id) const;
+ virtual wxSize ClientToWindowSize(const wxSize& size) const;
/**
- Find a child of this window, by name.
- May return @a this if it matches itself.
- */
- wxWindow* FindWindow(const wxString& name) const;
+ Converts window size @a size to corresponding client area size
+ In other words, the returned value is what would GetClientSize() return if
+ this window had given window size. Components with wxDefaultCoord value
+ are left unchanged.
- /**
- Find the first window with the given @e id.
+ Note that the conversion is not always exact, it assumes that
+ non-client area doesn't change and so doesn't take into account things
+ like menu bar (un)wrapping or (dis)appearance of the scrollbars.
- If @a parent is @NULL, the search will start from all top-level frames
- and dialog boxes; if non-@NULL, the search will be limited to the given
- window hierarchy.
- The search is recursive in both cases.
+ @since 2.8.8
- @see FindWindow()
+ @see ClientToWindowSize()
*/
- static wxWindow* FindWindowById(long id, wxWindow* parent = NULL);
+ virtual wxSize WindowToClientSize(const wxSize& size) const;
/**
- Find a window by its label.
-
- Depending on the type of window, the label may be a window title
- or panel item label. If @a parent is @NULL, the search will start from all
- top-level frames and dialog boxes; if non-@NULL, the search will be
- limited to the given window hierarchy.
- The search is recursive in both cases.
-
- @see FindWindow()
- */
- static wxWindow* FindWindowByLabel(const wxString& label,
- wxWindow* parent = NULL);
-
- /**
- Find a window by its name (as given in a window constructor or @b Create
- function call).
-
- If @a parent is @NULL, the search will start from all top-level frames
- and dialog boxes; if non-@NULL, the search will be limited to the given
- window hierarchy.
-
- The search is recursive in both cases. If no window with such name is found,
- FindWindowByLabel() is called.
-
- @see FindWindow()
- */
- static wxWindow* FindWindowByName(const wxString& name,
- wxWindow* parent = NULL);
-
- /**
- Sizes the window so that it fits around its subwindows.
+ Sizes the window so that it fits around its subwindows.
This function won't do anything if there are no subwindows and will only really
work correctly if sizers are used for the subwindows layout.
virtual void FitInside();
/**
- Freezes the window or, in other words, prevents any updates from taking
- place on screen, the window is not redrawn at all.
-
- Thaw() must be called to reenable window redrawing. Calls to these two
- functions may be nested but to ensure that the window is properly
- repainted again, you must thaw it exactly as many times as you froze it.
+ This functions returns the best acceptable minimal size for the window.
- If the window has any children, they are recursively frozen too.
+ For example, for a static control, it will be the minimal size such that the
+ control label is not truncated. For windows containing subwindows (typically
+ wxPanel), the size returned by this function will be the same as the size
+ the window would have had after calling Fit().
- This method is useful for visual appearance optimization (for example,
- it is a good idea to use it before doing many large text insertions in
- a row into a wxTextCtrl under wxGTK) but is not implemented on all
- platforms nor for all controls so it is mostly just a hint to wxWidgets
- and not a mandatory directive.
+ Note that when you write your own widget you need to overload the
+ DoGetBestSize() function instead of this (non-virtual!) function.
- @see wxWindowUpdateLocker, Thaw(), IsFrozen()
+ @see CacheBestSize(), @ref overview_windowsizing
*/
- void Freeze();
+ wxSize GetBestSize() const;
/**
- Gets the accelerator table for this window. See wxAcceleratorTable.
- */
- wxAcceleratorTable* GetAcceleratorTable();
+ Returns the size of the window 'client area' in pixels.
- /**
- Returns the accessible object for this window, if any.
- See also wxAccessible.
- */
- wxAccessible* GetAccessible();
+ The client area is the area which may be drawn on by the programmer,
+ excluding title bar, border, scrollbars, etc.
+ Note that if this window is a top-level one and it is currently minimized, the
+ return size is empty (both width and height are 0).
- /**
- @deprecated
- This method is deprecated, use GetEffectiveMinSize() instead.
+ @see GetSize(), GetVirtualSize()
*/
- wxSize GetAdjustedBestSize() const;
+ void GetClientSize(int* width, int* height) const;
/**
- Returns the background colour of the window.
-
- @see SetBackgroundColour(), SetForegroundColour(), GetForegroundColour()
+ @overload
*/
- wxColour GetBackgroundColour() const;
+ wxSize GetClientSize() const;
/**
- Returns the background style of the window.
- The background style can be one of the wxBackgroundStyle.
-
- @see SetBackgroundColour(), GetForegroundColour(),
- SetBackgroundStyle(), SetTransparent()
- */
- virtual wxBackgroundStyle GetBackgroundStyle() const;
+ Merges the window's best size into the min size and returns the result.
+ This is the value used by sizers to determine the appropriate
+ ammount of space to allocate for the widget.
- /**
- This functions returns the best acceptable minimal size for the window.
+ This is the method called by any wxSizer when they query the size
+ of a certain window or control.
- For example, for a static control, it will be the minimal size such that the
- control label is not truncated. For windows containing subwindows (typically
- wxPanel), the size returned by this function will be the same as the size
- the window would have had after calling Fit().
+ @see GetBestSize(), SetInitialSize(), @ref overview_windowsizing
*/
- wxSize GetBestSize() const;
+ virtual wxSize GetEffectiveMinSize() const;
/**
- Returns the currently captured window.
+ Returns the maximum size of window's client area.
- @see HasCapture(), CaptureMouse(), ReleaseMouse(),
- wxMouseCaptureLostEvent, wxMouseCaptureChangedEvent
- */
- static wxWindow* GetCapture();
+ This is an indication to the sizer layout mechanism that this is the maximum
+ possible size as well as the upper bound on window's size settable using
+ SetClientSize().
- /**
- Returns the caret() associated with the window.
+ @see GetMaxSize(), @ref overview_windowsizing
*/
- wxCaret* GetCaret() const;
+ virtual wxSize GetMaxClientSize() const;
/**
- Returns the character height for this window.
- */
- virtual int GetCharHeight() const;
+ Returns the maximum size of the window.
- /**
- Returns the average character width for this window.
- */
- virtual int GetCharWidth() const;
+ This is an indication to the sizer layout mechanism that this is the maximum
+ possible size as well as the upper bound on window's size settable using SetSize().
- //@{
- /**
- Returns a reference to the list of the window's children. @c wxWindowList
- is a type-safe wxList-like class whose elements are of type @c wxWindow*.
+ @see GetMaxClientSize(), @ref overview_windowsizing
*/
- wxWindowList& GetChildren();
- const wxWindowList& GetChildren() const;
- //@}
+ virtual wxSize GetMaxSize() const;
/**
- Returns the default font and colours which are used by the control.
+ Returns the minimum size of window's client area, an indication to the sizer
+ layout mechanism that this is the minimum required size of its client area.
- This is useful if you want to use the same font or colour in your own control
- as in a standard control -- which is a much better idea than hard coding specific
- colours or fonts which might look completely out of place on the users
- system, especially if it uses themes.
+ It normally just returns the value set by SetMinClientSize(), but it can be
+ overridden to do the calculation on demand.
- The @a variant parameter is only relevant under Mac currently and is
- ignore under other platforms. Under Mac, it will change the size of the
- returned font. See SetWindowVariant() for more about this.
+ @see GetMinSize(), @ref overview_windowsizing
+ */
+ virtual wxSize GetMinClientSize() const;
- This static method is "overridden" in many derived classes and so calling,
- for example, wxButton::GetClassDefaultAttributes() will typically
- return the values appropriate for a button which will be normally different
- from those returned by, say, wxListCtrl::GetClassDefaultAttributes().
+ /**
+ Returns the minimum size of the window, an indication to the sizer layout
+ mechanism that this is the minimum required size.
- The @c wxVisualAttributes structure has at least the fields
- @c font, @c colFg and @c colBg. All of them may be invalid
- if it was not possible to determine the default control appearance or,
- especially for the background colour, if the field doesn't make sense as is
- the case for @c colBg for the controls with themed background.
+ This method normally just returns the value set by SetMinSize(), but it
+ can be overridden to do the calculation on demand.
- @see InheritAttributes()
+ @see GetMinClientSize(), @ref overview_windowsizing
*/
- static wxVisualAttributes GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
+ virtual wxSize GetMinSize() const;
- //@{
/**
- Returns the size of the window 'client area' in pixels.
- The client area is the area which may be drawn on by the programmer,
- excluding title bar, border, scrollbars, etc.
+ Returns the size of the entire window in pixels, including title bar, border,
+ scrollbars, etc.
+
Note that if this window is a top-level one and it is currently minimized, the
- return size is empty (both width and height are 0).
+ returned size is the restored window size, not the size of the window icon.
@param width
- Receives the client width in pixels.
+ Receives the window width.
@param height
- Receives the client height in pixels.
+ Receives the window height.
- @see GetSize(), GetVirtualSize()
+ @see GetClientSize(), GetVirtualSize(), @ref overview_windowsizing
*/
- void GetClientSize(int* width, int* height) const;
- wxSize GetClientSize() const;
- //@}
+ void GetSize(int* width, int* height) const;
/**
- Returns a pointer to the window's layout constraints, or @NULL if there are none.
+ See the GetSize(int*,int*) overload for more info.
*/
- wxLayoutConstraints* GetConstraints() const;
+ wxSize GetSize() const;
/**
- Return the sizer that this window is a member of, if any, otherwise @NULL.
+ This gets the virtual size of the window in pixels.
+ By default it returns the client size of the window, but after a call to
+ SetVirtualSize() it will return the size set with that method.
+
+ @see @ref overview_windowsizing
*/
- wxSizer* GetContainingSizer() const;
+ wxSize GetVirtualSize() const;
/**
- Return the cursor associated with this window.
+ Like the other GetVirtualSize() overload but uses pointers instead.
- @see SetCursor()
+ @param width
+ Receives the window virtual width.
+ @param height
+ Receives the window virtual height.
*/
- const wxCursor& GetCursor() const;
+ void GetVirtualSize(int* width, int* height) const;
/**
- Currently this is the same as calling
- wxWindow::GetClassDefaultAttributes(wxWindow::GetWindowVariant()).
-
- One advantage of using this function compared to the static version is that
- the call is automatically dispatched to the correct class (as usual with
- virtual functions) and you don't have to specify the class name explicitly.
-
- The other one is that in the future this function could return different
- results, for example it might return a different font for an "Ok" button
- than for a generic button if the users GUI is configured to show such buttons
- in bold font. Of course, the down side is that it is impossible to call this
- function without actually having an object to apply it to whereas the static
- version can be used without having to create an object first.
+ Returns the size of the left/right and top/bottom borders of this window in x
+ and y components of the result respectively.
*/
- virtual wxVisualAttributes GetDefaultAttributes() const;
+ virtual wxSize GetWindowBorderSize() const;
/**
- Returns the associated drop target, which may be @NULL.
+ Resets the cached best size value so it will be recalculated the next time it
+ is needed.
- @see SetDropTarget(), @ref overview_dnd
+ @see CacheBestSize()
*/
- virtual wxDropTarget* GetDropTarget() const;
+ void InvalidateBestSize();
/**
- Merges the window's best size into the min size and returns the result.
- This is the value used by sizers to determine the appropriate
- ammount of space to allocate for the widget.
+ Posts a size event to the window.
- @see GetBestSize(), SetInitialSize(), @ref overview_windowsizing
- */
- wxSize GetEffectiveMinSize() const;
+ This is the same as SendSizeEvent() with @c wxSEND_EVENT_POST argument.
+ */
+ void PostSizeEvent();
/**
- Returns the event handler for this window.
- By default, the window is its own event handler.
+ Posts a size event to the parent of this window.
- @see SetEventHandler(), PushEventHandler(),
- PopEventHandler(), wxEvtHandler::ProcessEvent, wxEvtHandler
- */
- wxEvtHandler* GetEventHandler() const;
+ This is the same as SendSizeEventToParent() with @c wxSEND_EVENT_POST
+ argument.
+ */
+ void PostSizeEventToParent();
/**
- Returns the extra style bits for the window.
- */
- long GetExtraStyle() const;
+ This function sends a dummy @ref wxSizeEvent "size event" to
+ the window allowing it to re-layout its children positions.
- /**
- Returns the font for this window.
+ It is sometimes useful to call this function after adding or deleting a
+ children after the frame creation or if a child size changes. Note that
+ if the frame is using either sizers or constraints for the children
+ layout, it is enough to call wxWindow::Layout() directly and this
+ function should not be used in this case.
- @see SetFont()
+ If @a flags includes @c wxSEND_EVENT_POST value, this function posts
+ the event, i.e. schedules it for later processing, instead of
+ dispatching it directly. You can also use PostSizeEvent() as a more
+ readable equivalent of calling this function with this flag.
+
+ @param flags
+ May include @c wxSEND_EVENT_POST. Default value is 0.
*/
- wxFont GetFont() const;
+ virtual void SendSizeEvent(int flags = 0);
/**
- Returns the foreground colour of the window.
+ Safe wrapper for GetParent()->SendSizeEvent().
- @remarks The interpretation of foreground colour is open to
- interpretation according to the window class; it may be
- the text colour or other colour, or it may not be used at all.
+ This function simply checks that the window has a valid parent which is
+ not in process of being deleted and calls SendSizeEvent() on it. It is
+ used internally by windows such as toolbars changes to whose state
+ should result in parent re-layout (e.g. when a toolbar is added to the
+ top of the window, all the other windows must be shifted down).
- @see SetForegroundColour(), SetBackgroundColour(),
- GetBackgroundColour()
- */
- wxColour GetForegroundColour() const;
+ @see PostSizeEventToParent()
+
+ @param flags
+ See description of this parameter in SendSizeEvent() documentation.
+ */
+ void SendSizeEventToParent(int flags = 0);
/**
- Returns the grandparent of a window, or @NULL if there isn't one.
+ This sets the size of the window client area in pixels.
+
+ Using this function to size a window tends to be more device-independent
+ than SetSize(), since the application need not worry about what dimensions
+ the border or title bar have when trying to fit the window around panel
+ items, for example.
+
+ @see @ref overview_windowsizing
*/
- wxWindow* GetGrandParent() const;
+ virtual void SetClientSize(int width, int height);
/**
- Returns the platform-specific handle of the physical window.
- Cast it to an appropriate handle, such as @b HWND for Windows,
- @b Widget for Motif, @b GtkWidget for GTK or @b WinHandle for PalmOS.
+ @overload
*/
- void* GetHandle() const;
+ virtual void SetClientSize(const wxSize& size);
/**
- Gets the help text to be used as context-sensitive help for this window.
- Note that the text is actually stored by the current wxHelpProvider
- implementation, and not in the window object itself.
-
- @see SetHelpText(), GetHelpTextAtPoint(), wxHelpProvider
+ This normally does not need to be called by user code.
+ It is called when a window is added to a sizer, and is used so the window
+ can remove itself from the sizer when it is destroyed.
*/
- wxString GetHelpText() const;
+ void SetContainingSizer(wxSizer* sizer);
/**
- Gets the help text to be used as context-sensitive help for this window.
- This method should be overridden if the help message depends on the position
- inside the window, otherwise GetHelpText() can be used.
+ A @e smart SetSize that will fill in default size components with the
+ window's @e best size values.
- @param point
- Coordinates of the mouse at the moment of help event emission.
- @param origin
- Help event origin, see also wxHelpEvent::GetOrigin.
+ Also sets the window's minsize to the value passed in for use with sizers.
+ This means that if a full or partial size is passed to this function then
+ the sizers will use that size instead of the results of GetBestSize() to
+ determine the minimum needs of the window for layout.
+
+ Most controls will use this to set their initial size, and their min
+ size to the passed in value (if any.)
+
+ @see SetSize(), GetBestSize(), GetEffectiveMinSize(),
+ @ref overview_windowsizing
*/
- virtual wxString GetHelpTextAtPoint(const wxPoint point,
- wxHelpEvent::Origin origin) const;
+ void SetInitialSize(const wxSize& size = wxDefaultSize);
/**
- Returns the identifier of the window.
+ Sets the maximum client size of the window, to indicate to the sizer
+ layout mechanism that this is the maximum possible size of its client area.
- @remarks Each window has an integer identifier. If the application
- has not provided one (or the default wxID_ANY) an unique
- identifier with a negative value will be generated.
+ Note that this method is just a shortcut for:
+ @code
+ SetMaxSize(ClientToWindowSize(size));
+ @endcode
- @see SetId(), @ref overview_windowids
+ @see SetMaxSize(), @ref overview_windowsizing
*/
- int GetId() const;
+ virtual void SetMaxClientSize(const wxSize& size);
/**
- Generic way of getting a label from any window, for
- identification purposes.
+ Sets the maximum size of the window, to indicate to the sizer layout mechanism
+ that this is the maximum possible size.
- @remarks The interpretation of this function differs from class to class.
- For frames and dialogs, the value returned is the
- title. For buttons or static text controls, it is the
- button text. This function can be useful for
- meta-programs (such as testing tools or special-needs
- access programs) which need to identify windows by name.
+ @see SetMaxClientSize(), @ref overview_windowsizing
*/
- virtual wxString GetLabel() const;
+ virtual void SetMaxSize(const wxSize& size);
/**
- Returns the maximum size of window's client area.
+ Sets the minimum client size of the window, to indicate to the sizer
+ layout mechanism that this is the minimum required size of window's client
+ area.
- This is an indication to the sizer layout mechanism that this is the maximum
- possible size as well as the upper bound on window's size settable using
- SetClientSize().
+ You may need to call this if you change the window size after
+ construction and before adding to its parent sizer.
+
+ Note, that just as with SetMinSize(), calling this method doesn't
+ prevent the program from explicitly making the window smaller than the
+ specified size.
+
+ Note that this method is just a shortcut for:
+ @code
+ SetMinSize(ClientToWindowSize(size));
+ @endcode
- @see GetMaxSize()
+ @see SetMinSize(), @ref overview_windowsizing
*/
- virtual wxSize GetMaxClientSize() const;
+ virtual void SetMinClientSize(const wxSize& size);
/**
- Returns the maximum size of the window.
+ Sets the minimum size of the window, to indicate to the sizer layout
+ mechanism that this is the minimum required size.
- This is an indication to the sizer layout mechanism that this is the maximum
- possible size as well as the upper bound on window's size settable using SetSize().
+ You may need to call this if you change the window size after
+ construction and before adding to its parent sizer.
+
+ Notice that calling this method doesn't prevent the program from making
+ the window explicitly smaller than the specified size by calling
+ SetSize(), it just ensures that it won't become smaller than this size
+ during the automatic layout.
- @see GetMaxClientSize()
+ @see SetMinClientSize(), @ref overview_windowsizing
*/
- virtual wxSize GetMaxSize() const;
+ virtual void SetMinSize(const wxSize& size);
/**
- Returns the minimum size of window's client area, an indication to the sizer
- layout mechanism that this is the minimum required size of its client area.
+ Sets the size of the window in pixels.
- It normally just returns the value set by SetMinClientSize(), but it can be
- overridden to do the calculation on demand.
+ @param x
+ Required x position in pixels, or wxDefaultCoord to indicate that the
+ existing value should be used.
+ @param y
+ Required y position in pixels, or wxDefaultCoord to indicate that the
+ existing value should be used.
+ @param width
+ Required width in pixels, or wxDefaultCoord to indicate that the existing
+ value should be used.
+ @param height
+ Required height position in pixels, or wxDefaultCoord to indicate that the
+ existing value should be used.
+ @param sizeFlags
+ Indicates the interpretation of other parameters.
+ It is a bit list of the following:
+ - @c wxSIZE_AUTO_WIDTH: a wxDefaultCoord width value is taken to indicate
+ a wxWidgets-supplied default width.
+ - @c wxSIZE_AUTO_HEIGHT: a wxDefaultCoord height value is taken to indicate
+ a wxWidgets-supplied default height.
+ - @c wxSIZE_AUTO: wxDefaultCoord size values are taken to indicate
+ a wxWidgets-supplied default size.
+ - @c wxSIZE_USE_EXISTING: existing dimensions should be used
+ if wxDefaultCoord values are supplied.
+ - @c wxSIZE_ALLOW_MINUS_ONE: allow negative dimensions (i.e. value of
+ wxDefaultCoord) to be interpreted as real
+ dimensions, not default values.
+ - @c wxSIZE_FORCE: normally, if the position and the size of the window are
+ already the same as the parameters of this function,
+ nothing is done. but with this flag a window resize may
+ be forced even in this case (supported in wx 2.6.2 and
+ later and only implemented for MSW and ignored elsewhere
+ currently).
+
+ @remarks This overload sets the position and optionally size, of the window.
+ Parameters may be wxDefaultCoord to indicate either that a default
+ should be supplied by wxWidgets, or that the current value of the
+ dimension should be used.
- @see GetMinSize()
+ @see Move(), @ref overview_windowsizing
*/
- virtual wxSize GetMinClientSize() const;
+ void SetSize(int x, int y, int width, int height,
+ int sizeFlags = wxSIZE_AUTO);
/**
- Returns the minimum size of the window, an indication to the sizer layout
- mechanism that this is the minimum required size.
+ Sets the size of the window in pixels.
+ The size is specified using a wxRect, wxSize or by a couple of @c int objects.
- This method normally just returns the value set by SetMinSize(), but it
- can be overridden to do the calculation on demand.
+ @remarks This form must be used with non-default width and height values.
- @see GetMinClientSize()
+ @see Move(), @ref overview_windowsizing
*/
- virtual wxSize GetMinSize() const;
+ virtual void SetSize(const wxRect& rect);
/**
- Returns the window's name.
-
- @remarks This name is not guaranteed to be unique; it is up to the
- programmer to supply an appropriate name in the window
- constructor or via SetName().
+ @overload
+ */
+ virtual void SetSize(const wxSize& size);
- @see SetName()
+ /**
+ @overload
*/
- virtual wxString GetName() const;
+ virtual void SetSize(int width, int height);
/**
- Returns the next window after this one among the parent children or @NULL
- if this window is the last child.
+ Use of this function for windows which are not toplevel windows
+ (such as wxDialog or wxFrame) is discouraged.
+ Please use SetMinSize() and SetMaxSize() instead.
- @since 2.8.8
+ @see wxTopLevelWindow::SetSizeHints, @ref overview_windowsizing
+ */
+ void SetSizeHints( const wxSize& minSize,
+ const wxSize& maxSize=wxDefaultSize,
+ const wxSize& incSize=wxDefaultSize);
- @see GetPrevSibling()
+ /**
+ Sets the virtual size of the window in pixels.
+
+ @see @ref overview_windowsizing
*/
- wxWindow* GetNextSibling() const;
+ void SetVirtualSize(int width, int height);
/**
- Returns the parent of the window, or @NULL if there is no parent.
+ @overload
*/
- wxWindow* GetParent() const;
+ void SetVirtualSize(const wxSize& size);
+
+ //@}
+
/**
- This function shows a popup menu at the given position in this window and
- returns the selected id. It can be more convenient than the general purpose
- PopupMenu() function for simple menus proposing a choice in a list of
- strings to the user.
+ @name Positioning functions
+ */
+ //@{
- @param menu
- The menu to show
- @param pos
- The position at which to show the menu in client coordinates
+ /**
+ A synonym for Centre().
+ */
+ void Center(int dir = wxBOTH);
- @return The selected menu item id or wxID_NONE if none selected or an
- error occurred.
+ /**
+ A synonym for CentreOnParent().
*/
- int GetPopupMenuSelectionFromUser(wxMenu& menu, const wxPoint& pos);
+ void CenterOnParent(int dir = wxBOTH);
/**
- See the GetPopupMenuSelectionFromUser(wxMenu&, const wxPoint&) overload.
- This overload differs only because it takes two integers for the
- menu position instead of a wxPoint.
+ Centres the window.
+
+ @param direction
+ Specifies the direction for the centering. May be wxHORIZONTAL, wxVERTICAL
+ or wxBOTH. It may also include wxCENTRE_ON_SCREEN flag
+ if you want to center the window on the entire screen and not on its
+ parent window.
+
+ @remarks If the window is a top level one (i.e. doesn't have a parent),
+ it will be centered relative to the screen anyhow.
+
+ @see Center()
*/
- int GetPopupMenuSelectionFromUser(wxMenu& menu, int x, int y);
+ void Centre(int direction = wxBOTH);
+
+ /**
+ Centres the window on its parent. This is a more readable synonym for Centre().
+
+ @param direction
+ Specifies the direction for the centering. May be wxHORIZONTAL, wxVERTICAL
+ or wxBOTH.
+
+ @remarks This methods provides for a way to center top level windows over
+ their parents instead of the entire screen. If there
+ is no parent or if the window is not a top level
+ window, then behaviour is the same as Centre().
+ @see wxTopLevelWindow::CentreOnScreen
+ */
+ void CentreOnParent(int direction = wxBOTH);
/**
This gets the position of the window in pixels, relative to the parent window
for the child windows or relative to the display origin for the top level windows.
*/
wxPoint GetPosition() const;
- /**
- Returns the previous window before this one among the parent children or @c
- @NULL if this window is the first child.
-
- @since 2.8.8
-
- @see GetNextSibling()
- */
- wxWindow* GetPrevSibling() const;
-
/**
Returns the position and size of the window as a wxRect object.
wxRect GetScreenRect() const;
/**
- Returns the built-in scrollbar position.
+ Moves the window to the given position.
+
+ @param x
+ Required x position.
+ @param y
+ Required y position.
+ @param flags
+ See SetSize() for more info about this parameter.
+
+ @remarks Implementations of SetSize can also implicitly implement the
+ Move() function, which is defined in the base wxWindow class as the call:
+ @code
+ SetSize(x, y, wxDefaultCoord, wxDefaultCoord, wxSIZE_USE_EXISTING);
+ @endcode
- @see See SetScrollbar()
+ @see SetSize()
*/
- virtual int GetScrollPos(int orientation) const;
+ void Move(int x, int y, int flags = wxSIZE_USE_EXISTING);
/**
- Returns the built-in scrollbar range.
+ Moves the window to the given position.
- @see SetScrollbar()
- */
- virtual int GetScrollRange(int orientation) const;
+ @param pt
+ wxPoint object representing the position.
+ @param flags
+ See SetSize() for more info about this parameter.
- /**
- Returns the built-in scrollbar thumb size.
+ @remarks Implementations of SetSize() can also implicitly implement the
+ Move() function, which is defined in the base wxWindow class as the call:
+ @code
+ SetSize(x, y, wxDefaultCoord, wxDefaultCoord, wxSIZE_USE_EXISTING);
+ @endcode
- @see SetScrollbar()
+ @see SetSize()
*/
- virtual int GetScrollThumb(int orientation) const;
-
- /**
- Returns the size of the entire window in pixels, including title bar, border,
- scrollbars, etc.
+ void Move(const wxPoint& pt, int flags = wxSIZE_USE_EXISTING);
- Note that if this window is a top-level one and it is currently minimized, the
- returned size is the restored window size, not the size of the window icon.
+ //@}
- @param width
- Receives the window width.
- @param height
- Receives the window height.
- @see GetClientSize(), GetVirtualSize()
+ /**
+ @name Coordinate conversion functions
*/
- void GetSize(int* width, int* height) const;
+ //@{
/**
- See the GetSize(int*,int*) overload for more info.
+ Converts to screen coordinates from coordinates relative to this window.
+
+ @param x
+ A pointer to a integer value for the x coordinate. Pass the client
+ coordinate in, and a screen coordinate will be passed out.
+ @param y
+ A pointer to a integer value for the y coordinate. Pass the client
+ coordinate in, and a screen coordinate will be passed out.
+
+ @beginWxPythonOnly
+ In place of a single overloaded method name, wxPython implements the following methods:
+ - ClientToScreen(point): Accepts and returns a wxPoint
+ - ClientToScreenXY(x, y): Returns a 2-tuple, (x, y)
+ @endWxPythonOnly
*/
- wxSize GetSize() const;
+ void ClientToScreen(int* x, int* y) const;
/**
- Return the sizer associated with the window by a previous call to
- SetSizer() or @NULL.
+ Converts to screen coordinates from coordinates relative to this window.
+
+ @param pt
+ The client position for the second form of the function.
*/
- wxSizer* GetSizer() const;
+ wxPoint ClientToScreen(const wxPoint& pt) const;
/**
- Gets the dimensions of the string as it would be drawn on the
- window with the currently selected font.
+ Converts a point or size from dialog units to pixels.
- The text extent is returned in @a w and @a h pointers.
+ For the x dimension, the dialog units are multiplied by the average character
+ width and then divided by 4.
+ For the y dimension, the dialog units are multiplied by the average character
+ height and then divided by 8.
- @param string
- String whose extent is to be measured.
- @param w
- Return value for width.
- @param h
- Return value for height.
- @param descent
- Return value for descent (optional).
- @param externalLeading
- Return value for external leading (optional).
- @param font
- Font to use instead of the current window font (optional).
- @param use16
- If @true, string contains 16-bit characters. The default is @false.
- */
- virtual void GetTextExtent(const wxString& string, int* w, int* h,
- int* descent = NULL,
- int* externalLeading = NULL,
- const wxFont* font = NULL,
- bool use16 = false) const;
+ @remarks Dialog units are used for maintaining a dialog's proportions
+ even if the font changes.
+ You can also use these functions programmatically.
+ A convenience macro is defined:
+ @code
+ #define wxDLG_UNIT(parent, pt) parent->ConvertDialogToPixels(pt)
+ @endcode
- /**
- Gets the dimensions of the string as it would be drawn on the
- window with the currently selected font.
+ @see ConvertPixelsToDialog()
*/
- wxSize GetTextExtent(const wxString& string) const;
+ wxPoint ConvertDialogToPixels(const wxPoint& pt);
/**
- Get the associated tooltip or @NULL if none.
+ @overload
*/
- wxToolTip* GetToolTip() const;
+ wxSize ConvertDialogToPixels(const wxSize& sz);
/**
- Returns the region specifying which parts of the window have been damaged.
- Should only be called within an wxPaintEvent handler.
+ Converts a point or size from pixels to dialog units.
- @see wxRegion, wxRegionIterator
+ For the x dimension, the pixels are multiplied by 4 and then divided by the
+ average character width.
+ For the y dimension, the pixels are multiplied by 8 and then divided by the
+ average character height.
+
+ @remarks Dialog units are used for maintaining a dialog's proportions
+ even if the font changes.
+
+ @see ConvertDialogToPixels()
*/
- virtual wxRegion GetUpdateRegion() const;
+ wxPoint ConvertPixelsToDialog(const wxPoint& pt);
/**
- Returns a pointer to the current validator for the window, or @NULL if
- there is none.
+ @overload
*/
- virtual wxValidator* GetValidator();
+ wxSize ConvertPixelsToDialog(const wxSize& sz);
- //@{
/**
- This gets the virtual size of the window in pixels.
- By default it returns the client size of the window, but after a call to
- SetVirtualSize() it will return that size.
+ Converts from screen to client window coordinates.
- @param width
- Receives the window virtual width.
- @param height
- Receives the window virtual height.
+ @param x
+ Stores the screen x coordinate and receives the client x coordinate.
+ @param y
+ Stores the screen x coordinate and receives the client x coordinate.
*/
- void GetVirtualSize(int* width, int* height) const;
- wxSize GetVirtualSize() const;
- //@}
+ void ScreenToClient(int* x, int* y) const;
/**
- Returns the size of the left/right and top/bottom borders of this window in x
- and y components of the result respectively.
+ Converts from screen to client window coordinates.
+
+ @param pt
+ The screen position.
*/
- virtual wxSize GetWindowBorderSize() const;
+ wxPoint ScreenToClient(const wxPoint& pt) const;
+
+ //@}
+
/**
- Gets the window style that was passed to the constructor or @b Create
- method. @b GetWindowStyle() is another name for the same function.
+ @name Drawing-related functions
*/
- virtual long GetWindowStyleFlag() const;
+ //@{
/**
- Returns the value previously passed to SetWindowVariant().
+ Clears the window by filling it with the current background colour. Does not
+ cause an erase background event to be generated.
*/
- wxWindowVariant GetWindowVariant() const;
+ virtual void ClearBackground();
/**
- This function will generate the appropriate call to
- Navigate() if the key event is one normally used for
- keyboard navigation and return @true in this case.
+ Freezes the window or, in other words, prevents any updates from taking
+ place on screen, the window is not redrawn at all.
- @return Returns @true if the key pressed was for navigation and was
- handled, @false otherwise.
+ Thaw() must be called to reenable window redrawing. Calls to these two
+ functions may be nested but to ensure that the window is properly
+ repainted again, you must thaw it exactly as many times as you froze it.
- @see Navigate()
- */
- bool HandleAsNavigationKey(const wxKeyEvent& event);
+ If the window has any children, they are recursively frozen too.
- /**
- Shorthand for:
- @code
- GetEventHandler()->SafelyProcessEvent(event);
- @endcode
+ This method is useful for visual appearance optimization (for example,
+ it is a good idea to use it before doing many large text insertions in
+ a row into a wxTextCtrl under wxGTK) but is not implemented on all
+ platforms nor for all controls so it is mostly just a hint to wxWidgets
+ and not a mandatory directive.
+
+ @see wxWindowUpdateLocker, Thaw(), IsFrozen()
*/
- bool HandleWindowEvent(wxEvent& event) const;
+ void Freeze();
/**
- Returns @true if this window has the current mouse capture.
+ Reenables window updating after a previous call to Freeze().
- @see CaptureMouse(), ReleaseMouse(), wxMouseCaptureLostEvent,
- wxMouseCaptureChangedEvent
+ To really thaw the control, it must be called exactly the same number
+ of times as Freeze().
+
+ If the window has any children, they are recursively thawn too.
+
+ @see wxWindowUpdateLocker, Freeze(), IsFrozen()
*/
- virtual bool HasCapture() const;
+ void Thaw();
/**
- Returns @true if the window has the given @a exFlag bit set in its
- extra styles.
+ Returns @true if the window is currently frozen by a call to Freeze().
- @see SetExtraStyle()
+ @see Freeze(), Thaw()
*/
- bool HasExtraStyle(int exFlag) const;
+ bool IsFrozen() const;
/**
- Returns @true if the window has the given @a flag bit set.
+ Returns the background colour of the window.
+
+ @see SetBackgroundColour(), SetForegroundColour(), GetForegroundColour()
*/
- bool HasFlag(int flag) const;
+ wxColour GetBackgroundColour() const;
/**
- Returns @true if the window (or in case of composite controls, its main
- child window) has focus.
+ Returns the background style of the window.
+ The background style can be one of the wxBackgroundStyle.
- @see FindFocus()
+ @see SetBackgroundColour(), GetForegroundColour(),
+ SetBackgroundStyle(), SetTransparent()
*/
- virtual bool HasFocus() const;
-
+ virtual wxBackgroundStyle GetBackgroundStyle() const;
/**
- This method should be overridden to return @true if this window has
- multiple pages. All standard class with multiple pages such as
- wxNotebook, wxListbook and wxTreebook already override it to return @true
- and user-defined classes with similar behaviour should do it as well to
- allow the library to handle such windows appropriately.
+ Returns the character height for this window.
*/
- virtual bool HasMultiplePages() const;
+ virtual int GetCharHeight() const;
/**
- Returns @true if this window has a scroll bar for this orientation.
-
- @param orient
- Orientation to check, either wxHORIZONTAL or wxVERTICAL.
+ Returns the average character width for this window.
*/
- bool HasScrollbar(int orient) const;
+ virtual int GetCharWidth() const;
/**
- Returns @true if this window background is transparent (as, for example,
- for wxStaticText) and should show the parent window background.
+ Currently this is the same as calling
+ wxWindow::GetClassDefaultAttributes(wxWindow::GetWindowVariant()).
- This method is mostly used internally by the library itself and you normally
- shouldn't have to call it. You may, however, have to override it in your
- wxWindow-derived class to ensure that background is painted correctly.
- */
- virtual bool HasTransparentBackground();
+ One advantage of using this function compared to the static version is that
+ the call is automatically dispatched to the correct class (as usual with
+ virtual functions) and you don't have to specify the class name explicitly.
- /**
- Equivalent to calling wxWindow::Show(@false).
+ The other one is that in the future this function could return different
+ results, for example it might return a different font for an "Ok" button
+ than for a generic button if the users GUI is configured to show such buttons
+ in bold font. Of course, the down side is that it is impossible to call this
+ function without actually having an object to apply it to whereas the static
+ version can be used without having to create an object first.
*/
- bool Hide();
+ virtual wxVisualAttributes GetDefaultAttributes() const;
/**
- This function hides a window, like Hide(), but using a special visual
- effect if possible.
-
- The parameters of this function are the same as for ShowWithEffect(),
- please see their description there.
+ Returns the font for this window.
- @since 2.9.0
+ @see SetFont()
*/
- virtual bool HideWithEffect(wxShowEffect effect,
- unsigned timeout = 0);
+ wxFont GetFont() const;
/**
- This function is (or should be, in case of custom controls) called during
- window creation to intelligently set up the window visual attributes, that is
- the font and the foreground and background colours.
+ Returns the foreground colour of the window.
- By "intelligently" the following is meant: by default, all windows use their
- own @ref GetClassDefaultAttributes() default attributes.
- However if some of the parents attributes are explicitly (that is, using
- SetFont() and not wxWindow::SetOwnFont) changed and if the corresponding
- attribute hadn't been explicitly set for this window itself, then this
- window takes the same value as used by the parent.
- In addition, if the window overrides ShouldInheritColours() to return @false,
- the colours will not be changed no matter what and only the font might.
+ @remarks The interpretation of foreground colour is open to
+ interpretation according to the window class; it may be
+ the text colour or other colour, or it may not be used at all.
- This rather complicated logic is necessary in order to accommodate the
- different usage scenarios. The most common one is when all default attributes
- are used and in this case, nothing should be inherited as in modern GUIs
- different controls use different fonts (and colours) than their siblings so
- they can't inherit the same value from the parent. However it was also deemed
- desirable to allow to simply change the attributes of all children at once by
- just changing the font or colour of their common parent, hence in this case we
- do inherit the parents attributes.
+ @see SetForegroundColour(), SetBackgroundColour(),
+ GetBackgroundColour()
*/
- virtual void InheritAttributes();
+ wxColour GetForegroundColour() const;
/**
- Sends an @c wxEVT_INIT_DIALOG event, whose handler usually transfers data
- to the dialog via validators.
+ Gets the dimensions of the string as it would be drawn on the
+ window with the currently selected font.
+
+ The text extent is returned in @a w and @a h pointers.
+
+ @param string
+ String whose extent is to be measured.
+ @param w
+ Return value for width.
+ @param h
+ Return value for height.
+ @param descent
+ Return value for descent (optional).
+ @param externalLeading
+ Return value for external leading (optional).
+ @param font
+ Font to use instead of the current window font (optional).
*/
- virtual void InitDialog();
+ virtual void GetTextExtent(const wxString& string, int* w, int* h,
+ int* descent = NULL,
+ int* externalLeading = NULL,
+ const wxFont* font = NULL) const;
/**
- Resets the cached best size value so it will be recalculated the next time it
- is needed.
+ Gets the dimensions of the string as it would be drawn on the
+ window with the currently selected font.
*/
- void InvalidateBestSize();
+ wxSize GetTextExtent(const wxString& string) const;
/**
- Returns @true if the window contents is double-buffered by the system, i.e. if
- any drawing done on the window is really done on a temporary backing surface
- and transferred to the screen all at once later.
+ Returns the region specifying which parts of the window have been damaged.
+ Should only be called within an wxPaintEvent handler.
- @see wxBufferedDC
+ @see wxRegion, wxRegionIterator
*/
- virtual bool IsDoubleBuffered() const;
+ const wxRegion& GetUpdateRegion() const;
/**
- Returns @true if the window is enabled, i.e. if it accepts user input,
- @false otherwise.
-
- Notice that this method can return @false even if this window itself hadn't
- been explicitly disabled when one of its parent windows is disabled.
- To get the intrinsic status of this window, use IsThisEnabled()
+ Returns @true if this window background is transparent (as, for example,
+ for wxStaticText) and should show the parent window background.
- @see Enable()
+ This method is mostly used internally by the library itself and you normally
+ shouldn't have to call it. You may, however, have to override it in your
+ wxWindow-derived class to ensure that background is painted correctly.
*/
- bool IsEnabled() const;
+ virtual bool HasTransparentBackground();
- //@{
/**
- Returns @true if the given point or rectangle area has been exposed since the
- last repaint. Call this in an paint event handler to optimize redrawing by
- only redrawing those areas, which have been exposed.
+ Causes this window, and all of its children recursively (except under wxGTK1
+ where this is not implemented), to be repainted. Note that repainting doesn't
+ happen immediately but only during the next event loop iteration, if you need
+ to update the window immediately you should use Update() instead.
+
+ @param eraseBackground
+ If @true, the background will be erased.
+ @param rect
+ If non-@NULL, only the given rectangle will be treated as damaged.
+
+ @see RefreshRect()
*/
- bool IsExposed(int x, int y) const;
- const bool IsExposed(wxPoint amp;pt) const;
- const bool IsExposed(int x, int y, int w, int h) const;
- const bool IsExposed(wxRect amp;rect) const;
- //@}
+ virtual void Refresh(bool eraseBackground = true,
+ const wxRect* rect = NULL);
/**
- Returns @true if the window is currently frozen by a call to Freeze().
+ Redraws the contents of the given rectangle: only the area inside it will be
+ repainted.
- @see Freeze(), Thaw()
+ This is the same as Refresh() but has a nicer syntax as it can be called
+ with a temporary wxRect object as argument like this @c RefreshRect(wxRect(x, y, w, h)).
*/
- bool IsFrozen() const;
+ void RefreshRect(const wxRect& rect, bool eraseBackground = true);
/**
- Returns @true if the window is retained, @false otherwise.
+ Calling this method immediately repaints the invalidated area of the window and
+ all of its children recursively while this would usually only happen when the
+ flow of control returns to the event loop.
- @remarks Retained windows are only available on X platforms.
+ Notice that this function doesn't invalidate any area of the window so
+ nothing happens if nothing has been invalidated (i.e. marked as requiring
+ a redraw). Use Refresh() first if you want to immediately redraw the
+ window unconditionally.
*/
- virtual bool IsRetained() const;
+ virtual void Update();
/**
- Return whether a scrollbar is always shown.
+ Sets the background colour of the window.
+ Please see InheritAttributes() for explanation of the difference between
+ this method and SetOwnBackgroundColour().
- @param orient
- Orientation to check, either wxHORIZONTAL or wxVERTICAL.
+ @param colour
+ The colour to be used as the background colour, pass
+ wxNullColour to reset to the default colour.
- @see AlwaysShowScrollbars()
+ @remarks The background colour is usually painted by the default
+ wxEraseEvent event handler function under Windows and
+ automatically under GTK.
+ Note that setting the background colour does not cause an
+ immediate refresh, so you may wish to call wxWindow::ClearBackground
+ or wxWindow::Refresh after calling this function.
+ Using this function will disable attempts to use themes for
+ this window, if the system supports them. Use with care since
+ usually the themes represent the appearance chosen by the user
+ to be used for all applications on the system.
+
+ @see GetBackgroundColour(), SetForegroundColour(),
+ GetForegroundColour(), ClearBackground(),
+ Refresh(), wxEraseEvent
*/
- virtual bool IsScrollbarAlwaysShown(int orient) const;
+ virtual bool SetBackgroundColour(const wxColour& colour);
/**
- Returns @true if the window is shown, @false if it has been hidden.
+ Sets the background style of the window. see GetBackgroundStyle() for
+ the description of the possible style values.
- @see IsShownOnScreen()
+ @see SetBackgroundColour(), GetForegroundColour(),
+ SetTransparent()
*/
- virtual bool IsShown() const;
+ virtual bool SetBackgroundStyle(wxBackgroundStyle style);
/**
- Returns @true if the window is physically visible on the screen, i.e. it
- is shown and all its parents up to the toplevel window are shown as well.
+ Sets the font for this window. This function should not be called for the
+ parent window if you don't want its font to be inherited by its children,
+ use SetOwnFont() instead in this case and see InheritAttributes() for more
+ explanations.
- @see IsShown()
- */
- virtual bool IsShownOnScreen() const;
+ Please notice that the given font is not automatically used for
+ wxPaintDC objects associated with this window, you need to
+ call wxDC::SetFont too. However this font is used by
+ any standard controls for drawing their text as well as by
+ GetTextExtent().
- /**
- Returns @true if this window is intrinsically enabled, @false otherwise,
- i.e. if @ref Enable() Enable(@false) had been called. This method is
- mostly used for wxWidgets itself, user code should normally use
- IsEnabled() instead.
- */
- bool IsThisEnabled() const;
+ @param font
+ Font to associate with this window, pass
+ wxNullFont to reset to the default font.
- /**
- Returns @true if the given window is a top-level one. Currently all frames and
- dialogs are considered to be top-level windows (even if they have a parent
- window).
+ @return @true if the want was really changed, @false if it was already set
+ to this font and so nothing was done.
+
+ @see GetFont(), InheritAttributes()
*/
- virtual bool IsTopLevel() const;
+ virtual bool SetFont(const wxFont& font);
/**
- Invokes the constraint-based layout algorithm or the sizer-based algorithm
- for this window.
+ Sets the foreground colour of the window.
+ Please see InheritAttributes() for explanation of the difference between
+ this method and SetOwnForegroundColour().
+
+ @param colour
+ The colour to be used as the foreground colour, pass
+ wxNullColour to reset to the default colour.
- See SetAutoLayout(): when auto layout is on, this function gets called automatically
- when the window is resized.
+ @remarks The interpretation of foreground colour is open to
+ interpretation according to the window class; it may be
+ the text colour or other colour, or it may not be used at all.
- @see @ref overview_windowsizing
+ @see GetForegroundColour(), SetBackgroundColour(),
+ GetBackgroundColour(), ShouldInheritColours()
*/
- void Layout();
+ virtual bool SetForegroundColour(const wxColour& colour);
/**
- Lowers the window to the bottom of the window hierarchy (Z-order).
+ Sets the background colour of the window but prevents it from being inherited
+ by the children of this window.
- @see Raise()
+ @see SetBackgroundColour(), InheritAttributes()
*/
- virtual void Lower();
+ void SetOwnBackgroundColour(const wxColour& colour);
/**
- Disables all other windows in the application so that
- the user can only interact with this window.
+ Sets the font of the window but prevents it from being inherited by the
+ children of this window.
- @param flag
- If @true, this call disables all other windows in the application so that
- the user can only interact with this window. If @false, the effect is
- reversed.
+ @see SetFont(), InheritAttributes()
*/
- virtual void MakeModal(bool flag);
+ void SetOwnFont(const wxFont& font);
/**
- Moves the window to the given position.
-
- @param x
- Required x position.
- @param y
- Required y position.
-
- @remarks Implementations of SetSize can also implicitly implement the
- Move() function, which is defined in the base wxWindow class as the call:
- @code
- SetSize(x, y, wxDefaultCoord, wxDefaultCoord, wxSIZE_USE_EXISTING);
- @endcode
+ Sets the foreground colour of the window but prevents it from being inherited
+ by the children of this window.
- @see SetSize()
+ @see SetForegroundColour(), InheritAttributes()
*/
- void Move(int x, int y);
+ void SetOwnForegroundColour(const wxColour& colour);
/**
- Moves the window to the given position.
-
- @param pt
- wxPoint object representing the position.
-
- @remarks Implementations of SetSize() can also implicitly implement the
- Move() function, which is defined in the base wxWindow class as the call:
- @code
- SetSize(x, y, wxDefaultCoord, wxDefaultCoord, wxSIZE_USE_EXISTING);
- @endcode
-
- @see SetSize()
+ @deprecated use wxDC::SetPalette instead.
*/
- void Move(const wxPoint& pt);
+ void SetPalette(const wxPalette& pal);
/**
- Moves this window in the tab navigation order after the specified @e win.
- This means that when the user presses @c TAB key on that other window,
- the focus switches to this window.
-
- Default tab order is the same as creation order, this function and
- MoveBeforeInTabOrder() allow to change
- it after creating all the windows.
+ Return @true from here to allow the colours of this window to be changed by
+ InheritAttributes(), returning @false forbids inheriting them from the parent window.
- @param win
- A sibling of this window which should precede it in tab order,
- must not be @NULL
+ The base class version returns @false, but this method is overridden in
+ wxControl where it returns @true.
*/
- void MoveAfterInTabOrder(wxWindow* win);
+ virtual bool ShouldInheritColours() const;
/**
- Same as MoveAfterInTabOrder() except that it inserts this window just
- before @a win instead of putting it right after it.
- */
- void MoveBeforeInTabOrder(wxWindow* win);
-
- /**
- Performs a keyboard navigation action starting from this window.
- This method is equivalent to calling NavigateIn() method on the
- parent window.
-
- @param flags
- A combination of wxNavigationKeyEvent::IsForward and
- wxNavigationKeyEvent::WinChange.
-
- @return Returns @true if the focus was moved to another window or @false
- if nothing changed.
+ This function tells a window if it should use the system's "theme" code
+ to draw the windows' background instead if its own background drawing
+ code. This does not always have any effect since the underlying platform
+ obviously needs to support the notion of themes in user defined windows.
+ One such platform is GTK+ where windows can have (very colourful) backgrounds
+ defined by a user's selected theme.
- @remarks You may wish to call this from a text control custom keypress
- handler to do the default navigation behaviour for the
- tab key, since the standard default behaviour for a
- multiline text control with the wxTE_PROCESS_TAB style
- is to insert a tab and not navigate to the next
- control. See also wxNavigationKeyEvent and
- HandleAsNavigationKey.
+ Dialogs, notebook pages and the status bar have this flag set to @true
+ by default so that the default look and feel is simulated best.
*/
- bool Navigate(int flags = wxNavigationKeyEvent::IsForward);
+ virtual void SetThemeEnabled(bool enable);
/**
- Performs a keyboard navigation action inside this window.
- See Navigate() for more information.
+ Returns @true if the system supports transparent windows and calling
+ SetTransparent() may succeed. If this function returns @false, transparent
+ windows are definitely not supported by the current system.
*/
- bool NavigateIn(int flags = wxNavigationKeyEvent::IsForward);
+ virtual bool CanSetTransparent();
/**
- Create a new ID or range of IDs that are not currently in use.
- The IDs will be reserved until assigned to a wxWindow ID
- or unreserved with UnreserveControlId().
-
- See @ref overview_windowids for more information.
+ Set the transparency of the window. If the system supports transparent windows,
+ returns @true, otherwise returns @false and the window remains fully opaque.
+ See also CanSetTransparent().
- @param count
- The number of sequential IDs to reserve.
+ The parameter @a alpha is in the range 0..255 where 0 corresponds to a
+ fully transparent window and 255 to the fully opaque one. The constants
+ @c wxIMAGE_ALPHA_TRANSPARENT and @c wxIMAGE_ALPHA_OPAQUE can be used.
+ */
+ virtual bool SetTransparent(wxByte alpha);
- @return Returns the ID or the first ID of the range, or wxID_NONE if the
- specified number of identifiers couldn't be allocated.
+ //@}
- @see UnreserveControlId(), wxIdManager,
- @ref overview_windowids
- */
- static wxWindowID NewControlId(int count = 1);
/**
- This virtual function is normally only used internally, but
- sometimes an application may need it to implement functionality
- that should not be disabled by an application defining an OnIdle
- handler in a derived class.
+ @name Event-handling functions
- This function may be used to do delayed painting, for example,
- and most implementations call UpdateWindowUI()
- in order to send update events to the window in idle time.
+ wxWindow allows you to build a (sort of) stack of event handlers which
+ can be used to override the window's own event handling.
*/
- virtual void OnInternalIdle();
+ //@{
/**
- Same as #ScrollLines (-1).
- */
- bool LineUp();
+ Returns the event handler for this window.
+ By default, the window is its own event handler.
- /**
- Same as #ScrollLines (1).
+ @see SetEventHandler(), PushEventHandler(),
+ PopEventHandler(), wxEvtHandler::ProcessEvent, wxEvtHandler
*/
- bool LineDown();
+ wxEvtHandler* GetEventHandler() const;
/**
- Same as #ScrollPages (-1).
+ This function will generate the appropriate call to Navigate() if the key
+ event is one normally used for keyboard navigation and return @true in this case.
+
+ @return Returns @true if the key pressed was for navigation and was
+ handled, @false otherwise.
+
+ @see Navigate()
*/
- bool PageUp();
+ bool HandleAsNavigationKey(const wxKeyEvent& event);
/**
- Same as #ScrollPages (1).
- */
- bool PageDown();
+ Shorthand for:
+ @code
+ GetEventHandler()->SafelyProcessEvent(event);
+ @endcode
+ @see ProcessWindowEvent()
+ */
+ bool HandleWindowEvent(wxEvent& event) const;
/**
- Removes and returns the top-most event handler on the event handler stack.
+ Convenient wrapper for ProcessEvent().
- @param deleteHandler
- If this is @true, the handler will be deleted after it is removed.
- The default value is @false.
-
- @see SetEventHandler(), GetEventHandler(),
- PushEventHandler(), wxEvtHandler::ProcessEvent, wxEvtHandler
+ This is the same as writing @code GetEventHandler()->ProcessEvent(event);
+ @endcode but more convenient. Notice that ProcessEvent() itself can't
+ be called for wxWindow objects as it ignores the event handlers
+ associated with the window, use this function instead.
*/
- wxEvtHandler* PopEventHandler(bool deleteHandler = false);
+ bool ProcessWindowEvent(wxEvent& event);
- //@{
/**
- Pops up the given menu at the specified coordinates, relative to this
- window, and returns control when the user has dismissed the menu.
+ Removes and returns the top-most event handler on the event handler stack.
- If a menu item is selected, the corresponding menu event is generated and will be
- processed as usually. If the coordinates are not specified, current mouse
- cursor position is used.
+ E.g. in the case of:
+ @image html overview_events_winstack.png
+ when calling @c W->PopEventHandler(), the event handler @c A will be
+ removed and @c B will be the first handler of the stack.
- @param menu
- Menu to pop up.
- @param pos
- The position where the menu will appear.
- @param x
- Required x position for the menu to appear.
- @param y
- Required y position for the menu to appear.
+ Note that it's an error to call this function when no event handlers
+ were pushed on this window (i.e. when the window itself is its only
+ event handler).
- @remarks Just before the menu is popped up, wxMenu::UpdateUI is called to
- ensure that the menu items are in the correct state.
- The menu does not get deleted by the window.
- It is recommended to not explicitly specify coordinates when
- calling PopupMenu in response to mouse click, because some of
- the ports (namely, wxGTK) can do a better job of positioning
- the menu in that case.
+ @param deleteHandler
+ If this is @true, the handler will be deleted after it is removed
+ (and the returned value will be @NULL).
- @see wxMenu
+ @see @ref overview_events_processing
*/
- bool PopupMenu(wxMenu* menu,
- const wxPoint& pos = wxDefaultPosition);
- bool PopupMenu(wxMenu* menu, int x, int y);
- //@}
+ wxEvtHandler* PopEventHandler(bool deleteHandler = false);
/**
- Posts a size event to the window.
+ Pushes this event handler onto the event stack for the window.
- This is the same as SendSizeEvent() with @c wxSEND_EVENT_POST argument.
- */
- void PostSizeEvent();
+ An event handler is an object that is capable of processing the events sent
+ to a window. By default, the window is its own event handler, but an application
+ may wish to substitute another, for example to allow central implementation
+ of event-handling for a variety of different window classes.
- /**
- Posts a size event to the parent of this window.
+ wxWindow::PushEventHandler allows an application to set up a @e stack
+ of event handlers, where an event not handled by one event handler is
+ handed to the next one in the chain.
- This is the same as SendSizeEventToParent() with @c wxSEND_EVENT_POST
- argument.
- */
- void PostSizeEventToParent();
+ E.g. if you have two event handlers @c A and @c B and a wxWindow instance
+ @c W and you call:
+ @code
+ W->PushEventHandler(A);
+ W->PushEventHandler(B);
+ @endcode
+ you will end up with the following situation:
+ @image html overview_events_winstack.png
- /**
- Pushes this event handler onto the event stack for the window.
+ Note that you can use wxWindow::PopEventHandler to remove the event handler.
@param handler
Specifies the handler to be pushed.
+ It must not be part of a wxEvtHandler chain; an assert will fail
+ if it's not unlinked (see wxEvtHandler::IsUnlinked).
- @remarks An event handler is an object that is capable of processing the
- events sent to a window. By default, the window is its
- own event handler, but an application may wish to
- substitute another, for example to allow central
- implementation of event-handling for a variety of
- different window classes.
- wxWindow::PushEventHandler allows an application to set up a
- chain of event handlers, where an event not handled by one event
- handler is handed to the next one in the chain.
- Use wxWindow::PopEventHandler to remove the event handler.
-
- @see SetEventHandler(), GetEventHandler(),
- PopEventHandler(), wxEvtHandler::ProcessEvent, wxEvtHandler
+ @see @ref overview_events_processing
*/
void PushEventHandler(wxEvtHandler* handler);
/**
- Raises the window to the top of the window hierarchy (Z-order).
- In current version of wxWidgets this works both for managed and child windows.
+ Find the given @a handler in the windows event handler stack and
+ removes (but does not delete) it from the stack.
- @see Lower()
+ See wxEvtHandler::Unlink() for more info.
+
+ @param handler
+ The event handler to remove, must be non-@NULL and
+ must be present in this windows event handlers stack.
+
+ @return Returns @true if it was found and @false otherwise (this also
+ results in an assert failure so this function should
+ only be called when the handler is supposed to be there).
+
+ @see PushEventHandler(), PopEventHandler()
*/
- virtual void Raise();
+ bool RemoveEventHandler(wxEvtHandler* handler);
/**
- Causes this window, and all of its children recursively (except under wxGTK1
- where this is not implemented), to be repainted. Note that repainting doesn't
- happen immediately but only during the next event loop iteration, if you need
- to update the window immediately you should use Update() instead.
+ Sets the event handler for this window.
- @param eraseBackground
- If @true, the background will be erased.
- @param rect
- If non-@NULL, only the given rectangle will be treated as damaged.
+ Note that if you use this function you may want to use as the "next" handler
+ of @a handler the window itself; in this way when @a handler doesn't process
+ an event, the window itself will have a chance to do it.
- @see RefreshRect()
+ @param handler
+ Specifies the handler to be set. Cannot be @NULL.
+
+ @see @ref overview_events_processing
*/
- virtual void Refresh(bool eraseBackground = true,
- const wxRect* rect = NULL);
+ void SetEventHandler(wxEvtHandler* handler);
/**
- Redraws the contents of the given rectangle: only the area inside it will be
- repainted.
+ wxWindows cannot be used to form event handler chains; this function
+ thus will assert when called.
- This is the same as Refresh() but has a nicer syntax as it can be called
- with a temporary wxRect object as argument like this @c RefreshRect(wxRect(x, y, w, h)).
+ Note that instead you can use PushEventHandler() or SetEventHandler() to
+ implement a stack of event handlers to override wxWindow's own
+ event handling mechanism.
*/
- void RefreshRect(const wxRect& rect, bool eraseBackground = true);
+ virtual void SetNextHandler(wxEvtHandler* handler);
/**
- Registers a system wide hotkey. Every time the user presses the hotkey
- registered here, this window will receive a hotkey event.
+ wxWindows cannot be used to form event handler chains; this function
+ thus will assert when called.
- It will receive the event even if the application is in the background
- and does not have the input focus because the user is working with some
- other application.
+ Note that instead you can use PushEventHandler() or SetEventHandler() to
+ implement a stack of event handlers to override wxWindow's own
+ event handling mechanism.
+ */
+ virtual void SetPreviousHandler(wxEvtHandler* handler);
- @param hotkeyId
- Numeric identifier of the hotkey. For applications this must be between 0
- and 0xBFFF. If this function is called from a shared DLL, it must be a
- system wide unique identifier between 0xC000 and 0xFFFF.
- This is a MSW specific detail.
- @param modifiers
- A bitwise combination of wxMOD_SHIFT, wxMOD_CONTROL, wxMOD_ALT
- or wxMOD_WIN specifying the modifier keys that have to be pressed along
- with the key.
- @param virtualKeyCode
- The virtual key code of the hotkey.
+ //@}
- @return @true if the hotkey was registered successfully. @false if some
- other application already registered a hotkey with this
- modifier/virtualKeyCode combination.
- @remarks Use EVT_HOTKEY(hotkeyId, fnc) in the event table to capture the
- event. This function is currently only implemented
- under Windows. It is used in the Windows CE port for
- detecting hardware button presses.
- @see UnregisterHotKey()
+ /**
+ @name Window styles functions
*/
- bool RegisterHotKey(int hotkeyId, int modifiers,
- int virtualKeyCode);
+ //@{
/**
- Releases mouse input captured with CaptureMouse().
+ Returns the extra style bits for the window.
+ */
+ long GetExtraStyle() const;
- @see CaptureMouse(), HasCapture(), ReleaseMouse(),
- wxMouseCaptureLostEvent, wxMouseCaptureChangedEvent
+ /**
+ Gets the window style that was passed to the constructor or Create()
+ method. GetWindowStyle() is another name for the same function.
*/
- void ReleaseMouse();
+ virtual long GetWindowStyleFlag() const;
/**
- Removes a child window.
+ See GetWindowStyleFlag() for more info.
+ */
+ long GetWindowStyle() const;
- This is called automatically by window deletion functions so should not
- be required by the application programmer.
- Notice that this function is mostly internal to wxWidgets and shouldn't be
- called by the user code.
+ /**
+ Returns @true if the window has the given @a exFlag bit set in its
+ extra styles.
- @param child
- Child window to remove.
+ @see SetExtraStyle()
*/
- virtual void RemoveChild(wxWindow* child);
+ bool HasExtraStyle(int exFlag) const;
+
+ /**
+ Returns @true if the window has the given @a flag bit set.
+ */
+ bool HasFlag(int flag) const;
/**
- Find the given @a handler in the windows event handler chain and remove
- (but not delete) it from it.
+ Sets the extra style bits for the window.
+ The currently defined extra style bits are reported in the class
+ description.
+ */
+ virtual void SetExtraStyle(long exStyle);
- @param handler
- The event handler to remove, must be non-@NULL and
- must be present in this windows event handlers chain
+ /**
+ Sets the style of the window. Please note that some styles cannot be changed
+ after the window creation and that Refresh() might need to be be called
+ after changing the others for the change to take place immediately.
- @return Returns @true if it was found and @false otherwise (this also
- results in an assert failure so this function should
- only be called when the handler is supposed to be there).
+ See @ref overview_windowstyles "Window styles" for more information about flags.
- @see PushEventHandler(), PopEventHandler()
+ @see GetWindowStyleFlag()
*/
- bool RemoveEventHandler(wxEvtHandler* handler);
+ virtual void SetWindowStyleFlag(long style);
/**
- Reparents the window, i.e the window will be removed from its
- current parent window (e.g. a non-standard toolbar in a wxFrame)
- and then re-inserted into another.
-
- @param newParent
- New parent.
+ See SetWindowStyleFlag() for more info.
*/
- virtual bool Reparent(wxWindow* newParent);
+ void SetWindowStyle(long style);
- //@{
/**
- Converts from screen to client window coordinates.
-
- @param x
- Stores the screen x coordinate and receives the client x coordinate.
- @param y
- Stores the screen x coordinate and receives the client x coordinate.
- @param pt
- The screen position for the second form of the function.
- */
- virtual void ScreenToClient(int* x, int* y) const;
- virtual wxPoint ScreenToClient(const wxPoint& pt) const;
- //@}
-
- /**
- Scrolls the window by the given number of lines down (if @a lines is
- positive) or up.
+ Turns the given @a flag on if it's currently turned off and vice versa.
+ This function cannot be used if the value of the flag is 0 (which is often
+ the case for default flags).
- @return Returns @true if the window was scrolled, @false if it was already
- on top/bottom and nothing was done.
+ Also, please notice that not all styles can be changed after the control
+ creation.
- @remarks This function is currently only implemented under MSW and
- wxTextCtrl under wxGTK (it also works for wxScrolled classes
- under all platforms).
+ @return Returns @true if the style was turned on by this function, @false
+ if it was switched off.
- @see ScrollPages()
+ @see SetWindowStyleFlag(), HasFlag()
*/
- virtual bool ScrollLines(int lines);
-
- /**
- Scrolls the window by the given number of pages down (if @a pages is
- positive) or up.
+ bool ToggleWindowStyle(int flag);
- @return Returns @true if the window was scrolled, @false if it was already
- on top/bottom and nothing was done.
+ //@}
- @remarks This function is currently only implemented under MSW and wxGTK.
- @see ScrollLines()
+ /**
+ @name Tab order functions
*/
- virtual bool ScrollPages(int pages);
+ //@{
/**
- Physically scrolls the pixels in the window and move child windows accordingly.
+ Moves this window in the tab navigation order after the specified @e win.
+ This means that when the user presses @c TAB key on that other window,
+ the focus switches to this window.
- @param dx
- Amount to scroll horizontally.
- @param dy
- Amount to scroll vertically.
- @param rect
- Rectangle to scroll, if it is @NULL, the whole window is
- scrolled (this is always the case under wxGTK which doesn't support this
- parameter)
+ Default tab order is the same as creation order, this function and
+ MoveBeforeInTabOrder() allow to change
+ it after creating all the windows.
- @remarks Note that you can often use wxScrolled instead of using this
- function directly.
+ @param win
+ A sibling of this window which should precede it in tab order,
+ must not be @NULL
*/
- virtual void ScrollWindow(int dx, int dy,
- const wxRect* rect = NULL);
+ void MoveAfterInTabOrder(wxWindow* win);
/**
- This function sends a dummy @ref overview_wxsizeevent "size event" to
- the window allowing it to re-layout its children positions.
-
- It is sometimes useful to call this function after adding or deleting a
- children after the frame creation or if a child size changes. Note that
- if the frame is using either sizers or constraints for the children
- layout, it is enough to call wxWindow::Layout() directly and this
- function should not be used in this case.
-
- If @a flags includes @c wxSEND_EVENT_POST value, this function posts
- the event, i.e. schedules it for later processing, instead of
- dispatching it directly. You can also use PostSizeEvent() as a more
- readable equivalent of calling this function with this flag.
-
- @param flags
- May include @c wxSEND_EVENT_POST. Default value is 0.
+ Same as MoveAfterInTabOrder() except that it inserts this window just
+ before @a win instead of putting it right after it.
*/
- virtual void SendSizeEvent(int flags = 0);
+ void MoveBeforeInTabOrder(wxWindow* win);
/**
- Safe wrapper for GetParent()->SendSizeEvent().
-
- This function simply checks that the window has a valid parent which is
- not in process of being deleted and calls SendSizeEvent() on it. It is
- used internally by windows such as toolbars changes to whose state
- should result in parent re-layout (e.g. when a toolbar is added to the
- top of the window, all the other windows must be shifted down).
-
- @see PostSizeEventToParent()
+ Performs a keyboard navigation action starting from this window.
+ This method is equivalent to calling NavigateIn() method on the
+ parent window.
@param flags
- See description of this parameter in SendSizeEvent() documentation.
- */
- void SendSizeEventToParent(int flags = 0);
+ A combination of wxNavigationKeyEvent::IsForward and
+ wxNavigationKeyEvent::WinChange.
- /**
- Sets the accelerator table for this window. See wxAcceleratorTable.
+ @return Returns @true if the focus was moved to another window or @false
+ if nothing changed.
+
+ @remarks You may wish to call this from a text control custom keypress
+ handler to do the default navigation behaviour for the
+ tab key, since the standard default behaviour for a
+ multiline text control with the wxTE_PROCESS_TAB style
+ is to insert a tab and not navigate to the next
+ control. See also wxNavigationKeyEvent and
+ HandleAsNavigationKey.
*/
- virtual void SetAcceleratorTable(const wxAcceleratorTable& accel);
+ bool Navigate(int flags = IsForward);
/**
- Sets the accessible for this window. Any existing accessible for this window
- will be deleted first, if not identical to @e accessible.
- See also wxAccessible.
+ Performs a keyboard navigation action inside this window.
+ See Navigate() for more information.
*/
- void SetAccessible(wxAccessible* accessible);
+ bool NavigateIn(int flags = IsForward);
- /**
- Determines whether the Layout() function will be called automatically
- when the window is resized. Please note that this only happens for the
- windows usually used to contain children, namely wxPanel and wxTopLevelWindow
- (and the classes deriving from them).
+ //@}
- This method is called implicitly by SetSizer() but if you use SetConstraints()
- you should call it manually or otherwise the window layout won't be correctly
- updated when its size changes.
- @param autoLayout
- Set this to @true if you wish the Layout function to be
- called automatically when the window is resized.
- @see SetConstraints()
+ /**
+ @name Z order functions
*/
- void SetAutoLayout(bool autoLayout);
+ //@{
/**
- Sets the background colour of the window.
- Please see InheritAttributes() for explanation of the difference between
- this method and SetOwnBackgroundColour().
-
- @param colour
- The colour to be used as the background colour, pass
- wxNullColour to reset to the default colour.
+ Lowers the window to the bottom of the window hierarchy (Z-order).
- @remarks The background colour is usually painted by the default
- wxEraseEvent event handler function under Windows and
- automatically under GTK.
- Note that setting the background colour does not cause an
- immediate refresh, so you may wish to call wxWindow::ClearBackground
- or wxWindow::Refresh after calling this function.
- Using this function will disable attempts to use themes for
- this window, if the system supports them. Use with care since
- usually the themes represent the appearance chosen by the user
- to be used for all applications on the system.
+ @remarks
+ This function only works for wxTopLevelWindow-derived classes.
- @see GetBackgroundColour(), SetForegroundColour(),
- GetForegroundColour(), ClearBackground(),
- Refresh(), wxEraseEvent
+ @see Raise()
*/
- virtual bool SetBackgroundColour(const wxColour& colour);
+ virtual void Lower();
/**
- Sets the background style of the window. see GetBackgroundStyle() for
- the description of the possible style values.
+ Raises the window to the top of the window hierarchy (Z-order).
- @see SetBackgroundColour(), GetForegroundColour(),
- SetTransparent()
+ @remarks
+ This function only works for wxTopLevelWindow-derived classes.
+
+ @see Lower()
*/
- virtual void SetBackgroundStyle(wxBackgroundStyle style);
+ virtual void Raise();
- /**
- This method is only implemented by ports which have support for
- native TAB traversal (such as GTK+ 2.0).
+ //@}
- It is called by wxWidgets' container control code to give the native
- system a hint when doing TAB traversal. A call to this does not disable
- or change the effect of programmatically calling SetFocus().
- @see wxFocusEvent, wxPanel::SetFocus, wxPanel::SetFocusIgnoringChildren
+ /**
+ @name Window status functions
*/
- virtual void SetCanFocus(bool canFocus);
+ //@{
+
/**
- Sets the caret() associated with the window.
+ Equivalent to calling wxWindow::Show(@false).
*/
- void SetCaret(wxCaret* caret);
+ bool Hide();
- //@{
/**
- This sets the size of the window client area in pixels.
+ This function hides a window, like Hide(), but using a special visual
+ effect if possible.
- Using this function to size a window tends to be more device-independent
- than SetSize(), since the application need not worry about what dimensions
- the border or title bar have when trying to fit the window around panel
- items, for example.
+ The parameters of this function are the same as for ShowWithEffect(),
+ please see their description there.
- @param width
- The required client area width.
- @param height
- The required client area height.
- @param size
- The required client size.
+ @since 2.9.0
*/
- virtual void SetClientSize(int width, int height);
- virtual void SetClientSize(const wxSize& size);
- //@}
-
+ virtual bool HideWithEffect(wxShowEffect effect,
+ unsigned int timeout = 0);
/**
- Sets the window to have the given layout constraints. The window
- will then own the object, and will take care of its deletion.
- If an existing layout constraints object is already owned by the
- window, it will be deleted.
+ Returns @true if the window is enabled, i.e. if it accepts user input,
+ @false otherwise.
- @param constraints
- The constraints to set. Pass @NULL to disassociate and delete the window's
- constraints.
+ Notice that this method can return @false even if this window itself hadn't
+ been explicitly disabled when one of its parent windows is disabled.
+ To get the intrinsic status of this window, use IsThisEnabled()
- @remarks You must call SetAutoLayout() to tell a window to use
- the constraints automatically in OnSize; otherwise, you
- must override OnSize and call Layout() explicitly. When
- setting both a wxLayoutConstraints and a wxSizer, only
- the sizer will have effect.
+ @see Enable()
*/
- void SetConstraints(wxLayoutConstraints* constraints);
+ bool IsEnabled() const;
/**
- This normally does not need to be called by user code.
- It is called when a window is added to a sizer, and is used so the window
- can remove itself from the sizer when it is destroyed.
+ Returns @true if the given point or rectangle area has been exposed since the
+ last repaint. Call this in an paint event handler to optimize redrawing by
+ only redrawing those areas, which have been exposed.
*/
- void SetContainingSizer(wxSizer* sizer);
+ bool IsExposed(int x, int y) const;
/**
- Sets the window's cursor. Notice that the window cursor also sets it for the
- children of the window implicitly.
+ @overload
+ */
+ bool IsExposed(wxPoint& pt) const;
- The @a cursor may be @c wxNullCursor in which case the window cursor will
- be reset back to default.
+ /**
+ @overload
+ */
+ bool IsExposed(int x, int y, int w, int h) const;
- @param cursor
- Specifies the cursor that the window should normally display.
+ /**
+ @overload
+ */
+ bool IsExposed(wxRect& rect) const;
+ /**
+ Returns @true if the window is shown, @false if it has been hidden.
- @see ::wxSetCursor, wxCursor
+ @see IsShownOnScreen()
*/
- virtual void SetCursor(const wxCursor& cursor);
+ virtual bool IsShown() const;
/**
- Associates a drop target with this window.
- If the window already has a drop target, it is deleted.
+ Returns @true if the window is physically visible on the screen, i.e. it
+ is shown and all its parents up to the toplevel window are shown as well.
- @see GetDropTarget(), @ref overview_dnd
+ @see IsShown()
*/
- virtual void SetDropTarget(wxDropTarget* target);
+ virtual bool IsShownOnScreen() const;
/**
- Sets the event handler for this window.
+ Disables the window. Same as @ref Enable() Enable(@false).
- @param handler
- Specifies the handler to be set.
-
- @remarks An event handler is an object that is capable of processing the
- events sent to a window. By default, the window is its
- own event handler, but an application may wish to
- substitute another, for example to allow central
- implementation of event-handling for a variety of
- different window classes.
- It is usually better to use wxWindow::PushEventHandler since
- this sets up a chain of event handlers, where an event not
- handled by one event handler is handed to the next one in the chain.
-
- @see GetEventHandler(), PushEventHandler(),
- PopEventHandler(), wxEvtHandler::ProcessEvent, wxEvtHandler
+ @return Returns @true if the window has been disabled, @false if it had
+ been already disabled before the call to this function.
*/
- void SetEventHandler(wxEvtHandler* handler);
+ bool Disable();
/**
- Sets the extra style bits for the window.
- The currently defined extra style bits are reported in the class
- description.
- */
- virtual void SetExtraStyle(long exStyle);
+ Enable or disable the window for user input. Note that when a parent window is
+ disabled, all of its children are disabled as well and they are reenabled again
+ when the parent is.
- /**
- This sets the window to receive keyboard input.
+ @param enable
+ If @true, enables the window for input. If @false, disables the window.
- @see HasFocus(), wxFocusEvent, wxPanel::SetFocus,
- wxPanel::SetFocusIgnoringChildren
+ @return Returns @true if the window has been enabled or disabled, @false
+ if nothing was done, i.e. if the window had already
+ been in the specified state.
+
+ @see IsEnabled(), Disable(), wxRadioBox::Enable
*/
- virtual void SetFocus();
+ virtual bool Enable(bool enable = true);
/**
- This function is called by wxWidgets keyboard navigation code when the user
- gives the focus to this window from keyboard (e.g. using @c TAB key).
+ Shows or hides the window. You may need to call Raise()
+ for a top level window if you want to bring it to top, although this is not
+ needed if Show() is called immediately after the frame creation.
- By default this method simply calls SetFocus() but
- can be overridden to do something in addition to this in the derived classes.
+ @param show
+ If @true displays the window. Otherwise, hides it.
+
+ @return @true if the window has been shown or hidden or @false if nothing
+ was done because it already was in the requested state.
+
+ @see IsShown(), Hide(), wxRadioBox::Show, wxShowEvent.
*/
- virtual void SetFocusFromKbd();
+ virtual bool Show(bool show = true);
/**
- Sets the font for this window. This function should not be called for the
- parent window if you don't want its font to be inherited by its children,
- use SetOwnFont() instead in this case and see InheritAttributes() for more
- explanations.
+ This function shows a window, like Show(), but using a special visual
+ effect if possible.
- Please notice that the given font is not automatically used for
- wxPaintDC objects associated with this window, you need to
- call wxDC::SetFont too. However this font is used by
- any standard controls for drawing their text as well as by
- GetTextExtent().
+ @param effect
+ The effect to use.
- @param font
- Font to associate with this window, pass
- wxNullFont to reset to the default font.
+ @param timeout
+ The @a timeout parameter specifies the time of the animation, in
+ milliseconds. If the default value of 0 is used, the default
+ animation time for the current platform is used.
- @return @true if the want was really changed, @false if it was already set
- to this font and so nothing was done.
+ @note Currently this function is only implemented in wxMSW and does the
+ same thing as Show() in the other ports.
- @see GetFont(), InheritAttributes()
+ @since 2.9.0
+
+ @see HideWithEffect()
*/
- virtual bool SetFont(const wxFont& font);
+ virtual bool ShowWithEffect(wxShowEffect effect,
+ unsigned int timeout = 0);
- /**
- Sets the foreground colour of the window.
- Please see InheritAttributes() for explanation of the difference between
- this method and SetOwnForegroundColour().
+ //@}
- @param colour
- The colour to be used as the foreground colour, pass
- wxNullColour to reset to the default colour.
- @remarks The interpretation of foreground colour is open to
- interpretation according to the window class; it may be
- the text colour or other colour, or it may not be used at all.
+ /**
+ @name Context-sensitive help functions
+ */
+ //@{
- @see GetForegroundColour(), SetBackgroundColour(),
- GetBackgroundColour(), ShouldInheritColours()
+ /**
+ Gets the help text to be used as context-sensitive help for this window.
+ Note that the text is actually stored by the current wxHelpProvider
+ implementation, and not in the window object itself.
+
+ @see SetHelpText(), GetHelpTextAtPoint(), wxHelpProvider
*/
- virtual void SetForegroundColour(const wxColour& colour);
+ wxString GetHelpText() const;
/**
Sets the help text to be used as context-sensitive help for this window.
void SetHelpText(const wxString& helpText);
/**
- Sets the identifier of the window.
-
- @remarks Each window has an integer identifier. If the application has
- not provided one, an identifier will be generated.
- Normally, the identifier should be provided on creation
- and should not be modified subsequently.
+ Gets the help text to be used as context-sensitive help for this window.
+ This method should be overridden if the help message depends on the position
+ inside the window, otherwise GetHelpText() can be used.
- @see GetId(), @ref overview_windowids
+ @param point
+ Coordinates of the mouse at the moment of help event emission.
+ @param origin
+ Help event origin, see also wxHelpEvent::GetOrigin.
*/
- void SetId(int id);
+ virtual wxString GetHelpTextAtPoint(const wxPoint& point,
+ wxHelpEvent::Origin origin) const;
/**
- Sets the initial window size if none is given (i.e. at least one of the
- components of the size passed to ctor/Create() is wxDefaultCoord).
+ Get the associated tooltip or @NULL if none.
*/
- virtual void SetInitialBestSize(const wxSize& size);
+ wxToolTip* GetToolTip() const;
/**
- A @e smart SetSize that will fill in default size components with the
- window's @e best size values.
+ Attach a tooltip to the window.
- Also sets the window's minsize to the value passed in for use with sizers.
- This means that if a full or partial size is passed to this function then
- the sizers will use that size instead of the results of GetBestSize() to
- determine the minimum needs of the window for layout.
+ wxToolTip pointer can be @NULL in the overload taking the pointer,
+ meaning to unset any existing tooltips, however UnsetToolTip() provides
+ a more readable alternative to this operation.
- Most controls will use this to set their initial size, and their min
- size to the passed in value (if any.)
+ Notice that these methods are always available, even if wxWidgets was
+ compiled with @c wxUSE_TOOLTIPS set to 0, but don't do anything in this
+ case.
- @see SetSize(), GetBestSize(), GetEffectiveMinSize(),
- @ref overview_windowsizing
+ @see GetToolTip(), wxToolTip
*/
- void SetInitialSize(const wxSize& size = wxDefaultSize);
+ void SetToolTip(const wxString& tip);
/**
- Sets the window's label.
-
- @param label
- The window label.
-
- @see GetLabel()
+ @overload
*/
- virtual void SetLabel(const wxString& label);
+ void SetToolTip(wxToolTip* tip);
/**
- Sets the maximum client size of the window, to indicate to the sizer
- layout mechanism that this is the maximum possible size of its client area.
+ Unset any existing tooltip.
- @see SetMaxSize()
- */
- virtual void SetMaxClientSize(const wxSize& size);
+ @since 2.9.0
- /**
- Sets the maximum size of the window, to indicate to the sizer layout mechanism
- that this is the maximum possible size.
+ @see SetToolTip()
+ */
+ void UnsetToolTip();
- @see SetMaxClientSize()
+ //@}
+
+
+ /**
+ @name Popup/context menu functions
*/
- virtual void SetMaxSize(const wxSize& size);
+ //@{
/**
- Sets the minimum client size of the window, to indicate to the sizer
- layout mechanism that this is the minimum required size of window's client
- area.
+ This function shows a popup menu at the given position in this window and
+ returns the selected id.
- You may need to call this if you change the window size after
- construction and before adding to its parent sizer.
+ It can be more convenient than the general purpose PopupMenu() function
+ for simple menus proposing a choice in a list of strings to the user.
- Note, that just as with SetMinSize(), calling this method doesn't
- prevent the program from explicitly making the window smaller than the
- specified size.
+ Notice that to avoid unexpected conflicts between the (usually
+ consecutive range of) ids used by the menu passed to this function and
+ the existing EVT_UPDATE_UI() handlers, this function temporarily
+ disables UI updates for the window, so you need to manually disable
+ (or toggle or ...) any items which should be disabled in the menu
+ before showing it.
+
+ The parameter @a menu is the menu to show.
+ The parameter @a pos (or the parameters @a x and @a y) is the
+ position at which to show the menu in client coordinates.
- @see SetMinSize()
+ @return
+ The selected menu item id or @c wxID_NONE if none selected or an
+ error occurred.
+
+ @since 2.9.0
*/
- virtual void SetMinClientSize(const wxSize& size);
+ int GetPopupMenuSelectionFromUser(wxMenu& menu, const wxPoint& pos);
/**
- Sets the minimum size of the window, to indicate to the sizer layout
- mechanism that this is the minimum required size.
+ @overload
+ */
+ int GetPopupMenuSelectionFromUser(wxMenu& menu, int x, int y);
- You may need to call this if you change the window size after
- construction and before adding to its parent sizer.
+ /**
+ Pops up the given menu at the specified coordinates, relative to this
+ window, and returns control when the user has dismissed the menu.
- Notice that calling this method doesn't prevent the program from making
- the window explicitly smaller than the specified size by calling
- SetSize(), it just ensures that it won't become smaller than this size
- during the automatic layout.
+ If a menu item is selected, the corresponding menu event is generated and will be
+ processed as usually. If the coordinates are not specified, current mouse
+ cursor position is used.
- @see SetMinClientSize()
- */
- virtual void SetMinSize(const wxSize& size);
+ @a menu is the menu to pop up.
- /**
- Sets the window's name.
+ The position where the menu will appear can be specified either as a
+ wxPoint @a pos or by two integers (@a x and @a y).
- @param name
- A name to set for the window.
+ @remarks Just before the menu is popped up, wxMenu::UpdateUI is called to
+ ensure that the menu items are in the correct state.
+ The menu does not get deleted by the window.
+ It is recommended to not explicitly specify coordinates when
+ calling PopupMenu in response to mouse click, because some of
+ the ports (namely, wxGTK) can do a better job of positioning
+ the menu in that case.
- @see GetName()
+ @see wxMenu
*/
- virtual void SetName(const wxString& name);
+ bool PopupMenu(wxMenu* menu,
+ const wxPoint& pos = wxDefaultPosition);
/**
- Sets the background colour of the window but prevents it from being inherited
- by the children of this window.
-
- @see SetBackgroundColour(), InheritAttributes()
+ @overload
*/
- void SetOwnBackgroundColour(const wxColour& colour);
+ bool PopupMenu(wxMenu* menu, int x, int y);
- /**
- Sets the font of the window but prevents it from being inherited by the
- children of this window.
+ //@}
- @see SetFont(), InheritAttributes()
- */
- void SetOwnFont(const wxFont& font);
/**
- Sets the foreground colour of the window but prevents it from being inherited
- by the children of this window.
-
- @see SetForegroundColour(), InheritAttributes()
+ Validator functions
*/
- void SetOwnForegroundColour(const wxColour& colour);
+ //@{
/**
- @deprecated use wxDC::SetPalette instead.
+ Returns a pointer to the current validator for the window, or @NULL if
+ there is none.
*/
- virtual void SetPalette(wxPalette* palette);
+ virtual wxValidator* GetValidator();
/**
- Sets the position of one of the built-in scrollbars.
+ Deletes the current validator (if any) and sets the window validator, having
+ called wxValidator::Clone to create a new validator of this type.
+ */
+ virtual void SetValidator(const wxValidator& validator);
- @param orientation
- Determines the scrollbar whose position is to be set.
- May be wxHORIZONTAL or wxVERTICAL.
- @param pos
- Position in scroll units.
- @param refresh
- @true to redraw the scrollbar, @false otherwise.
+ /**
+ Transfers values from child controls to data areas specified by their
+ validators. Returns @false if a transfer failed.
- @remarks This function does not directly affect the contents of the
- window: it is up to the application to take note of
- scrollbar attributes and redraw contents accordingly.
+ If the window has @c wxWS_EX_VALIDATE_RECURSIVELY extra style flag set,
+ the method will also call TransferDataFromWindow() of all child windows.
- @see SetScrollbar(), GetScrollPos(), GetScrollThumb(), wxScrollBar,
- wxScrolled
+ @see TransferDataToWindow(), wxValidator, Validate()
*/
- virtual void SetScrollPos(int orientation, int pos,
- bool refresh = true);
+ virtual bool TransferDataFromWindow();
/**
- Sets the scrollbar properties of a built-in scrollbar.
+ Transfers values to child controls from data areas specified by their
+ validators.
- @param orientation
- Determines the scrollbar whose page size is to be set.
- May be wxHORIZONTAL or wxVERTICAL.
- @param position
- The position of the scrollbar in scroll units.
- @param thumbSize
- The size of the thumb, or visible portion of the scrollbar, in scroll units.
- @param range
- The maximum position of the scrollbar.
- @param refresh
- @true to redraw the scrollbar, @false otherwise.
+ If the window has @c wxWS_EX_VALIDATE_RECURSIVELY extra style flag set,
+ the method will also call TransferDataToWindow() of all child windows.
- @remarks
- Let's say you wish to display 50 lines of text, using the same font.
- The window is sized so that you can only see 16 lines at a time.
- You would use:
- @code
- SetScrollbar(wxVERTICAL, 0, 16, 50);
- @endcode
- Note that with the window at this size, the thumb position can never
- go above 50 minus 16, or 34. You can determine how many lines are
- currently visible by dividing the current view size by the character
- height in pixels.
- When defining your own scrollbar behaviour, you will always need
- to recalculate the scrollbar settings when the window size changes.
- You could therefore put your scrollbar calculations and SetScrollbar
- call into a function named AdjustScrollbars, which can be called
- initially and also from your wxSizeEvent handler function.
+ @return Returns @false if a transfer failed.
- @see @ref overview_scrolling, wxScrollBar, wxScrolled, wxScrollWinEvent
+ @see TransferDataFromWindow(), wxValidator, Validate()
*/
- virtual void SetScrollbar(int orientation, int position,
- int thumbSize, int range,
- bool refresh = true);
+ virtual bool TransferDataToWindow();
/**
- Sets the size of the window in pixels.
-
- @param x
- Required x position in pixels, or wxDefaultCoord to indicate that the
- existing value should be used.
- @param y
- Required y position in pixels, or wxDefaultCoord to indicate that the
- existing value should be used.
- @param width
- Required width in pixels, or wxDefaultCoord to indicate that the existing
- value should be used.
- @param height
- Required height position in pixels, or wxDefaultCoord to indicate that the
- existing value should be used.
- @param sizeFlags
- Indicates the interpretation of other parameters.
- It is a bit list of the following:
- - @c wxSIZE_AUTO_WIDTH: a wxDefaultCoord width value is taken to indicate
- a wxWidgets-supplied default width.
- - @c wxSIZE_AUTO_HEIGHT: a wxDefaultCoord height value is taken to indicate
- a wxWidgets-supplied default height.
- - @c wxSIZE_AUTO: wxDefaultCoord size values are taken to indicate
- a wxWidgets-supplied default size.
- - @c wxSIZE_USE_EXISTING: existing dimensions should be used
- if wxDefaultCoord values are supplied.
- - @c wxSIZE_ALLOW_MINUS_ONE: allow negative dimensions (i.e. value of
- wxDefaultCoord) to be interpreted as real
- dimensions, not default values.
- - @c wxSIZE_FORCE: normally, if the position and the size of the window are
- already the same as the parameters of this function,
- nothing is done. but with this flag a window resize may
- be forced even in this case (supported in wx 2.6.2 and
- later and only implemented for MSW and ignored elsewhere
- currently).
+ Validates the current values of the child controls using their validators.
+ If the window has @c wxWS_EX_VALIDATE_RECURSIVELY extra style flag set,
+ the method will also call Validate() of all child windows.
- @remarks This overload sets the position and optionally size, of the window.
- Parameters may be wxDefaultCoord to indicate either that a default
- should be supplied by wxWidgets, or that the current value of the
- dimension should be used.
+ @return Returns @false if any of the validations failed.
- @see Move()
+ @see TransferDataFromWindow(), TransferDataToWindow(),
+ wxValidator
*/
- virtual void SetSize(int x, int y, int width, int height,
- int sizeFlags = wxSIZE_AUTO);
+ virtual bool Validate();
+
+ //@}
+
+ /**
+ @name wxWindow properties functions
+ */
//@{
+
/**
- Sets the size of the window in pixels.
- The size is specified using a wxRect, wxSize or by a couple of @c int objects.
+ Returns the identifier of the window.
- @remarks This form must be used with non-default width and height values.
+ @remarks Each window has an integer identifier. If the application
+ has not provided one (or the default wxID_ANY) an unique
+ identifier with a negative value will be generated.
- @see Move()
+ @see SetId(), @ref overview_windowids
*/
- virtual void SetSize(const wxRect& rect);
- virtual void SetSize(const wxSize& size);
- virtual void SetSize(int width, int height);
- //@}
+ wxWindowID GetId() const;
/**
- Sets the window to have the given layout sizer.
- The window will then own the object, and will take care of its deletion.
- If an existing layout constraints object is already owned by the
- window, it will be deleted if the deleteOld parameter is @true.
+ Generic way of getting a label from any window, for
+ identification purposes.
- Note that this function will also call SetAutoLayout() implicitly with @true
- parameter if the @a sizer is non-@NULL and @false otherwise.
+ @remarks The interpretation of this function differs from class to class.
+ For frames and dialogs, the value returned is the
+ title. For buttons or static text controls, it is the
+ button text. This function can be useful for
+ meta-programs (such as testing tools or special-needs
+ access programs) which need to identify windows by name.
+ */
+ virtual wxString GetLabel() const;
- @param sizer
- The sizer to set. Pass @NULL to disassociate and conditionally delete
- the window's sizer. See below.
- @param deleteOld
- If @true (the default), this will delete any pre-existing sizer.
- Pass @false if you wish to handle deleting the old sizer yourself.
+ /**
+ Returns the layout direction for this window,
+ Note that @c wxLayout_Default is returned if layout direction is not supported.
+ */
+ virtual wxLayoutDirection GetLayoutDirection() const;
- @remarks SetSizer enables and disables Layout automatically.
+ /**
+ Returns the window's name.
+
+ @remarks This name is not guaranteed to be unique; it is up to the
+ programmer to supply an appropriate name in the window
+ constructor or via SetName().
+
+ @see SetName()
*/
- void SetSizer(wxSizer* sizer, bool deleteOld = true);
+ virtual wxString GetName() const;
/**
- This method calls SetSizer() and then wxSizer::SetSizeHints which sets the initial
- window size to the size needed to accommodate all sizer elements and sets the
- size hints which, if this window is a top level one, prevent the user from
- resizing it to be less than this minimial size.
+ Returns the value previously passed to SetWindowVariant().
*/
- void SetSizerAndFit(wxSizer* sizer, bool deleteOld = true);
+ wxWindowVariant GetWindowVariant() const;
/**
- This function tells a window if it should use the system's "theme" code
- to draw the windows' background instead if its own background drawing
- code. This does not always have any effect since the underlying platform
- obviously needs to support the notion of themes in user defined windows.
- One such platform is GTK+ where windows can have (very colourful) backgrounds
- defined by a user's selected theme.
+ Sets the identifier of the window.
- Dialogs, notebook pages and the status bar have this flag set to @true
- by default so that the default look and feel is simulated best.
+ @remarks Each window has an integer identifier. If the application has
+ not provided one, an identifier will be generated.
+ Normally, the identifier should be provided on creation
+ and should not be modified subsequently.
+
+ @see GetId(), @ref overview_windowids
*/
- virtual void SetThemeEnabled(bool enable);
+ void SetId(wxWindowID winid);
- //@{
/**
- Attach a tooltip to the window.
+ Sets the window's label.
- wxToolTip pointer can be @NULL in the overload taking the pointer,
- meaning to unset any existing tooltips, however UnsetToolTip() provides
- a more readable alternative to this operation.
+ @param label
+ The window label.
- Notice that these methods are always available, even if wxWidgets was
- compiled with @c wxUSE_TOOLTIPS set to 0, but don't do anything in this
- case.
+ @see GetLabel()
+ */
+ virtual void SetLabel(const wxString& label);
- @see GetToolTip(), wxToolTip
+ /**
+ Sets the layout direction for this window.
*/
- void SetToolTip(const wxString& tip);
- void SetToolTip(wxToolTip* tip);
- //@}
+ virtual void SetLayoutDirection(wxLayoutDirection dir);
/**
- Set the transparency of the window. If the system supports transparent windows,
- returns @true, otherwise returns @false and the window remains fully opaque.
- See also CanSetTransparent().
+ Sets the window's name.
- The parameter @a alpha is in the range 0..255 where 0 corresponds to a
- fully transparent window and 255 to the fully opaque one. The constants
- @c wxIMAGE_ALPHA_TRANSPARENT and @c wxIMAGE_ALPHA_OPAQUE can be used.
+ @param name
+ A name to set for the window.
+
+ @see GetName()
*/
- virtual bool SetTransparent(wxByte alpha);
+ virtual void SetName(const wxString& name);
+
+ /**
+ This function can be called under all platforms but only does anything under
+ Mac OS X 10.3+ currently. Under this system, each of the standard control can
+ exist in several sizes which correspond to the elements of wxWindowVariant enum.
+
+ By default the controls use the normal size, of course, but this function can
+ be used to change this.
+ */
+ void SetWindowVariant(wxWindowVariant variant);
+
+ /**
+ Gets the accelerator table for this window. See wxAcceleratorTable.
+ */
+ wxAcceleratorTable* GetAcceleratorTable();
+
+ /**
+ Returns the accessible object for this window, if any.
+ See also wxAccessible.
+ */
+ wxAccessible* GetAccessible();
+
+ /**
+ Sets the accelerator table for this window. See wxAcceleratorTable.
+ */
+ virtual void SetAcceleratorTable(const wxAcceleratorTable& accel);
+
+ /**
+ Sets the accessible for this window. Any existing accessible for this window
+ will be deleted first, if not identical to @e accessible.
+ See also wxAccessible.
+ */
+ void SetAccessible(wxAccessible* accessible);
+
+ //@}
+
+
+ /**
+ @name Window deletion functions
+ */
+ //@{
+
+ /**
+ This function simply generates a wxCloseEvent whose handler usually tries
+ to close the window. It doesn't close the window itself, however.
+
+ @param force
+ @false if the window's close handler should be able to veto the destruction
+ of this window, @true if it cannot.
+
+ @remarks Close calls the close handler for the window, providing an
+ opportunity for the window to choose whether to destroy
+ the window. Usually it is only used with the top level
+ windows (wxFrame and wxDialog classes) as the others
+ are not supposed to have any special OnClose() logic.
+ The close handler should check whether the window is being deleted
+ forcibly, using wxCloseEvent::CanVeto, in which case it should
+ destroy the window using wxWindow::Destroy.
+ Note that calling Close does not guarantee that the window will
+ be destroyed; but it provides a way to simulate a manual close
+ of a window, which may or may not be implemented by destroying
+ the window. The default implementation of wxDialog::OnCloseWindow
+ does not necessarily delete the dialog, since it will simply
+ simulate an wxID_CANCEL event which is handled by the appropriate
+ button event handler and may do anything at all.
+ To guarantee that the window will be destroyed, call
+ wxWindow::Destroy instead
+
+ @see @ref overview_windowdeletion "Window Deletion Overview",
+ Destroy(), wxCloseEvent
+ */
+ bool Close(bool force = false);
+
+ /**
+ Destroys the window safely. Use this function instead of the delete operator,
+ since different window classes can be destroyed differently. Frames and dialogs
+ are not destroyed immediately when this function is called -- they are added
+ to a list of windows to be deleted on idle time, when all the window's events
+ have been processed. This prevents problems with events being sent to
+ non-existent windows.
+
+ @return @true if the window has either been successfully deleted, or it
+ has been added to the list of windows pending real deletion.
+ */
+ virtual bool Destroy();
+
+ /**
+ Returns true if this window is in process of being destroyed.
+
+ The top level windows are not deleted immediately but are rather
+ scheduled for later destruction to give them time to process any
+ pending messages, see Destroy() description.
+
+ This function returns @true if this window, or one of its parent
+ windows, is scheduled for destruction and can be useful to avoid
+ manipulating it as it's usually useless to do something with a window
+ which is on the point of disappearing anyhow.
+ */
+ bool IsBeingDeleted() const;
+
+ //@}
+
+
+
+ /**
+ @name Drag and drop functions
+ */
+ //@{
+
+ /**
+ Returns the associated drop target, which may be @NULL.
+
+ @see SetDropTarget(), @ref overview_dnd
+ */
+ virtual wxDropTarget* GetDropTarget() const;
+
+ /**
+ Associates a drop target with this window.
+ If the window already has a drop target, it is deleted.
+
+ @see GetDropTarget(), @ref overview_dnd
+ */
+ virtual void SetDropTarget(wxDropTarget* target);
+
+ /**
+ Enables or disables eligibility for drop file events (OnDropFiles).
+
+ @param accept
+ If @true, the window is eligible for drop file events.
+ If @false, the window will not accept drop file events.
+
+ @remarks Windows only until version 2.8.9, available on all platforms
+ since 2.8.10. Cannot be used together with SetDropTarget() on
+ non-Windows platforms.
+
+ @see SetDropTarget()
+ */
+ virtual void DragAcceptFiles(bool accept);
+
+ //@}
+
+
+ /**
+ @name Constraints, sizers and window layouting functions
+ */
+ //@{
+
+ /**
+ Return the sizer that this window is a member of, if any, otherwise @NULL.
+ */
+ wxSizer* GetContainingSizer() const;
+
+ /**
+ Return the sizer associated with the window by a previous call to
+ SetSizer() or @NULL.
+ */
+ wxSizer* GetSizer() const;
+
+ /**
+ Sets the window to have the given layout sizer.
+ The window will then own the object, and will take care of its deletion.
+ If an existing layout constraints object is already owned by the
+ window, it will be deleted if the deleteOld parameter is @true.
+
+ Note that this function will also call SetAutoLayout() implicitly with @true
+ parameter if the @a sizer is non-@NULL and @false otherwise.
+
+ @param sizer
+ The sizer to set. Pass @NULL to disassociate and conditionally delete
+ the window's sizer. See below.
+ @param deleteOld
+ If @true (the default), this will delete any pre-existing sizer.
+ Pass @false if you wish to handle deleting the old sizer yourself.
+
+ @remarks SetSizer enables and disables Layout automatically.
+ */
+ void SetSizer(wxSizer* sizer, bool deleteOld = true);
+
+ /**
+ This method calls SetSizer() and then wxSizer::SetSizeHints which sets the initial
+ window size to the size needed to accommodate all sizer elements and sets the
+ size hints which, if this window is a top level one, prevent the user from
+ resizing it to be less than this minimial size.
+ */
+ void SetSizerAndFit(wxSizer* sizer, bool deleteOld = true);
+
+ /**
+ Returns a pointer to the window's layout constraints, or @NULL if there are none.
+ */
+ wxLayoutConstraints* GetConstraints() const;
+
+ /**
+ Sets the window to have the given layout constraints. The window
+ will then own the object, and will take care of its deletion.
+ If an existing layout constraints object is already owned by the
+ window, it will be deleted.
+
+ @param constraints
+ The constraints to set. Pass @NULL to disassociate and delete the window's
+ constraints.
+
+ @remarks You must call SetAutoLayout() to tell a window to use
+ the constraints automatically in OnSize; otherwise, you
+ must override OnSize and call Layout() explicitly. When
+ setting both a wxLayoutConstraints and a wxSizer, only
+ the sizer will have effect.
+ */
+ void SetConstraints(wxLayoutConstraints* constraints);
+
+
+ /**
+ Invokes the constraint-based layout algorithm or the sizer-based algorithm
+ for this window.
+
+ This function does not get called automatically when the window is resized
+ because lots of windows deriving from wxWindow does not need this functionality.
+ If you want to have Layout() called automatically, you should derive
+ from wxPanel (see wxPanel::Layout).
+
+ @see @ref overview_windowsizing
+ */
+ virtual bool Layout();
+
+ /**
+ Determines whether the Layout() function will be called automatically
+ when the window is resized. Please note that this only happens for the
+ windows usually used to contain children, namely wxPanel and wxTopLevelWindow
+ (and the classes deriving from them).
+
+ This method is called implicitly by SetSizer() but if you use SetConstraints()
+ you should call it manually or otherwise the window layout won't be correctly
+ updated when its size changes.
+
+ @param autoLayout
+ Set this to @true if you wish the Layout() function to be
+ called automatically when the window is resized
+ (really happens only if you derive from wxPanel or wxTopLevelWindow).
+
+ @see SetConstraints()
+ */
+ void SetAutoLayout(bool autoLayout);
+
+ //@}
+
+
+
+ /**
+ @name Mouse functions
+ */
+ //@{
+
+ /**
+ Directs all mouse input to this window.
+ Call ReleaseMouse() to release the capture.
+
+ Note that wxWidgets maintains the stack of windows having captured the mouse
+ and when the mouse is released the capture returns to the window which had had
+ captured it previously and it is only really released if there were no previous
+ window. In particular, this means that you must release the mouse as many times
+ as you capture it, unless the window receives the wxMouseCaptureLostEvent event.
+
+ Any application which captures the mouse in the beginning of some operation
+ must handle wxMouseCaptureLostEvent and cancel this operation when it receives
+ the event. The event handler must not recapture mouse.
+
+ @see ReleaseMouse(), wxMouseCaptureLostEvent
+ */
+ void CaptureMouse();
+
+ /**
+ Returns the caret() associated with the window.
+ */
+ wxCaret* GetCaret() const;
+
+ /**
+ Return the cursor associated with this window.
+
+ @see SetCursor()
+ */
+ const wxCursor& GetCursor() const;
+
+ /**
+ Returns @true if this window has the current mouse capture.
+
+ @see CaptureMouse(), ReleaseMouse(), wxMouseCaptureLostEvent,
+ wxMouseCaptureChangedEvent
+ */
+ virtual bool HasCapture() const;
+
+ /**
+ Releases mouse input captured with CaptureMouse().
+
+ @see CaptureMouse(), HasCapture(), ReleaseMouse(),
+ wxMouseCaptureLostEvent, wxMouseCaptureChangedEvent
+ */
+ void ReleaseMouse();
+
+ /**
+ Sets the caret() associated with the window.
+ */
+ void SetCaret(wxCaret* caret);
+
+ /**
+ Sets the window's cursor. Notice that the window cursor also sets it for the
+ children of the window implicitly.
+
+ The @a cursor may be @c wxNullCursor in which case the window cursor will
+ be reset back to default.
+
+ @param cursor
+ Specifies the cursor that the window should normally display.
+
+ @see ::wxSetCursor, wxCursor
+ */
+ virtual bool SetCursor(const wxCursor& cursor);
+
+ /**
+ Moves the pointer to the given position on the window.
+
+ @note This function is not supported under Mac because Apple Human
+ Interface Guidelines forbid moving the mouse cursor programmatically.
+
+ @param x
+ The new x position for the cursor.
+ @param y
+ The new y position for the cursor.
+ */
+ virtual void WarpPointer(int x, int y);
+
+ //@}
+
+
+
+
+ /**
+ @name Miscellaneous functions
+ */
+ //@{
+
+ /**
+ Does the window-specific updating after processing the update event.
+ This function is called by UpdateWindowUI() in order to check return
+ values in the wxUpdateUIEvent and act appropriately.
+ For example, to allow frame and dialog title updating, wxWidgets
+ implements this function as follows:
+
+ @code
+ // do the window-specific processing after processing the update event
+ void wxTopLevelWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
+ {
+ if ( event.GetSetEnabled() )
+ Enable(event.GetEnabled());
+
+ if ( event.GetSetText() )
+ {
+ if ( event.GetText() != GetTitle() )
+ SetTitle(event.GetText());
+ }
+ }
+ @endcode
+ */
+ virtual void DoUpdateWindowUI(wxUpdateUIEvent& event);
+
+ /**
+ Returns the platform-specific handle of the physical window.
+ Cast it to an appropriate handle, such as @b HWND for Windows,
+ @b Widget for Motif, @b GtkWidget for GTK or @b WinHandle for PalmOS.
+ */
+ virtual WXWidget GetHandle() const;
+
+ /**
+ This method should be overridden to return @true if this window has
+ multiple pages. All standard class with multiple pages such as
+ wxNotebook, wxListbook and wxTreebook already override it to return @true
+ and user-defined classes with similar behaviour should do it as well to
+ allow the library to handle such windows appropriately.
+ */
+ virtual bool HasMultiplePages() const;
+
+ /**
+ This function is (or should be, in case of custom controls) called during
+ window creation to intelligently set up the window visual attributes, that is
+ the font and the foreground and background colours.
+
+ By "intelligently" the following is meant: by default, all windows use their
+ own @ref GetClassDefaultAttributes() default attributes.
+ However if some of the parents attributes are explicitly (that is, using
+ SetFont() and not wxWindow::SetOwnFont) changed and if the corresponding
+ attribute hadn't been explicitly set for this window itself, then this
+ window takes the same value as used by the parent.
+ In addition, if the window overrides ShouldInheritColours() to return @false,
+ the colours will not be changed no matter what and only the font might.
+
+ This rather complicated logic is necessary in order to accommodate the
+ different usage scenarios. The most common one is when all default attributes
+ are used and in this case, nothing should be inherited as in modern GUIs
+ different controls use different fonts (and colours) than their siblings so
+ they can't inherit the same value from the parent. However it was also deemed
+ desirable to allow to simply change the attributes of all children at once by
+ just changing the font or colour of their common parent, hence in this case we
+ do inherit the parents attributes.
+ */
+ virtual void InheritAttributes();
+
+ /**
+ Sends an @c wxEVT_INIT_DIALOG event, whose handler usually transfers data
+ to the dialog via validators.
+ */
+ virtual void InitDialog();
+
+ /**
+ Returns @true if the window contents is double-buffered by the system, i.e. if
+ any drawing done on the window is really done on a temporary backing surface
+ and transferred to the screen all at once later.
+
+ @see wxBufferedDC
+ */
+ virtual bool IsDoubleBuffered() const;
+
+ /**
+ Returns @true if the window is retained, @false otherwise.
+
+ @remarks Retained windows are only available on X platforms.
+ */
+ virtual bool IsRetained() const;
+
+ /**
+ Returns @true if this window is intrinsically enabled, @false otherwise,
+ i.e. if @ref Enable() Enable(@false) had been called. This method is
+ mostly used for wxWidgets itself, user code should normally use
+ IsEnabled() instead.
+ */
+ bool IsThisEnabled() const;
+
+ /**
+ Returns @true if the given window is a top-level one. Currently all frames and
+ dialogs are considered to be top-level windows (even if they have a parent
+ window).
+ */
+ virtual bool IsTopLevel() const;
+
+ /**
+ Disables all other windows in the application so that
+ the user can only interact with this window.
+
+ @param modal
+ If @true, this call disables all other windows in the application so that
+ the user can only interact with this window. If @false, the effect is
+ reversed.
+ */
+ virtual void MakeModal(bool modal = true);
+
+ /**
+ This virtual function is normally only used internally, but
+ sometimes an application may need it to implement functionality
+ that should not be disabled by an application defining an OnIdle
+ handler in a derived class.
+
+ This function may be used to do delayed painting, for example,
+ and most implementations call UpdateWindowUI()
+ in order to send update events to the window in idle time.
+ */
+ virtual void OnInternalIdle();
+
+ /**
+ Registers a system wide hotkey. Every time the user presses the hotkey
+ registered here, this window will receive a hotkey event.
+
+ It will receive the event even if the application is in the background
+ and does not have the input focus because the user is working with some
+ other application.
+
+ @param hotkeyId
+ Numeric identifier of the hotkey. For applications this must be between 0
+ and 0xBFFF. If this function is called from a shared DLL, it must be a
+ system wide unique identifier between 0xC000 and 0xFFFF.
+ This is a MSW specific detail.
+ @param modifiers
+ A bitwise combination of wxMOD_SHIFT, wxMOD_CONTROL, wxMOD_ALT
+ or wxMOD_WIN specifying the modifier keys that have to be pressed along
+ with the key.
+ @param virtualKeyCode
+ The virtual key code of the hotkey.
+
+ @return @true if the hotkey was registered successfully. @false if some
+ other application already registered a hotkey with this
+ modifier/virtualKeyCode combination.
+
+ @remarks Use EVT_HOTKEY(hotkeyId, fnc) in the event table to capture the
+ event. This function is currently only implemented
+ under Windows. It is used in the Windows CE port for
+ detecting hardware button presses.
+
+ @see UnregisterHotKey()
+ */
+ virtual bool RegisterHotKey(int hotkeyId, int modifiers,
+ int virtualKeyCode);
+
+ /**
+ Unregisters a system wide hotkey.
+
+ @param hotkeyId
+ Numeric identifier of the hotkey. Must be the same id that was passed to
+ RegisterHotKey().
+
+ @return @true if the hotkey was unregistered successfully, @false if the
+ id was invalid.
+
+ @remarks This function is currently only implemented under MSW.
+
+ @see RegisterHotKey()
+ */
+ virtual bool UnregisterHotKey(int hotkeyId);
+
+ /**
+ This function sends one or more wxUpdateUIEvent to the window.
+ The particular implementation depends on the window; for example a
+ wxToolBar will send an update UI event for each toolbar button,
+ and a wxFrame will send an update UI event for each menubar menu item.
+
+ You can call this function from your application to ensure that your
+ UI is up-to-date at this point (as far as your wxUpdateUIEvent handlers
+ are concerned). This may be necessary if you have called
+ wxUpdateUIEvent::SetMode() or wxUpdateUIEvent::SetUpdateInterval() to limit
+ the overhead that wxWidgets incurs by sending update UI events in idle time.
+ @a flags should be a bitlist of one or more of the ::wxUpdateUI enumeration.
+
+ If you are calling this function from an OnInternalIdle or OnIdle
+ function, make sure you pass the wxUPDATE_UI_FROMIDLE flag, since
+ this tells the window to only update the UI elements that need
+ to be updated in idle time. Some windows update their elements
+ only when necessary, for example when a menu is about to be shown.
+ The following is an example of how to call UpdateWindowUI from
+ an idle function.
+
+ @code
+ void MyWindow::OnInternalIdle()
+ {
+ if (wxUpdateUIEvent::CanUpdate(this))
+ UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
+ }
+ @endcode
- /**
- Deletes the current validator (if any) and sets the window validator, having
- called wxValidator::Clone to create a new validator of this type.
+ @see wxUpdateUIEvent, DoUpdateWindowUI(), OnInternalIdle()
*/
- virtual void SetValidator(const wxValidator& validator);
+ virtual void UpdateWindowUI(long flags = wxUPDATE_UI_NONE);
- //@{
- /**
- Sets the virtual size of the window in pixels.
- */
- void SetVirtualSize(int width, int height);
- void SetVirtualSize(const wxSize& size);
//@}
- /**
- Identical to SetWindowStyleFlag().
- */
- void SetWindowStyle(long style);
-
- /**
- Sets the style of the window. Please note that some styles cannot be changed
- after the window creation and that Refresh() might need to be be called
- after changing the others for the change to take place immediately.
-
- See @ref overview_windowstyles "Window styles" for more information about flags.
- @see GetWindowStyleFlag()
- */
- virtual void SetWindowStyleFlag(long style);
+ // NOTE: static functions must have their own group or Doxygen will screw
+ // up the ordering of the member groups
/**
- This function can be called under all platforms but only does anything under
- Mac OS X 10.3+ currently. Under this system, each of the standard control can
- exist in several sizes which correspond to the elements of wxWindowVariant enum.
-
- By default the controls use the normal size, of course, but this function can
- be used to change this.
+ @name Miscellaneous static functions
*/
- void SetWindowVariant(wxWindowVariant variant);
+ //@{
/**
- Return @true from here to allow the colours of this window to be changed by
- InheritAttributes(), returning @false forbids inheriting them from the parent window.
+ Returns the default font and colours which are used by the control.
- The base class version returns @false, but this method is overridden in
- wxControl where it returns @true.
- */
- virtual bool ShouldInheritColours() const;
+ This is useful if you want to use the same font or colour in your own control
+ as in a standard control -- which is a much better idea than hard coding specific
+ colours or fonts which might look completely out of place on the users
+ system, especially if it uses themes.
- /**
- Shows or hides the window. You may need to call Raise()
- for a top level window if you want to bring it to top, although this is not
- needed if Show() is called immediately after the frame creation.
+ The @a variant parameter is only relevant under Mac currently and is
+ ignore under other platforms. Under Mac, it will change the size of the
+ returned font. See SetWindowVariant() for more about this.
- @param show
- If @true displays the window. Otherwise, hides it.
+ This static method is "overridden" in many derived classes and so calling,
+ for example, wxButton::GetClassDefaultAttributes() will typically
+ return the values appropriate for a button which will be normally different
+ from those returned by, say, wxListCtrl::GetClassDefaultAttributes().
- @return @true if the window has been shown or hidden or @false if nothing
- was done because it already was in the requested state.
+ The @c wxVisualAttributes structure has at least the fields
+ @c font, @c colFg and @c colBg. All of them may be invalid
+ if it was not possible to determine the default control appearance or,
+ especially for the background colour, if the field doesn't make sense as is
+ the case for @c colBg for the controls with themed background.
- @see IsShown(), Hide(), wxRadioBox::Show, wxShowEvent.
+ @see InheritAttributes()
*/
- virtual bool Show(bool show = true);
+ static wxVisualAttributes GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
/**
- This function shows a window, like Show(), but using a special visual
- effect if possible.
-
- @param effect
- The effect to use.
-
- @param timeout
- The @a timeout parameter specifies the time of the animation, in
- milliseconds. If the default value of 0 is used, the default
- animation time for the current platform is used.
-
- @note Currently this function is only implemented in wxMSW and does the
- same thing as Show() in the other ports.
+ Finds the window or control which currently has the keyboard focus.
- @since 2.9.0
+ @remarks Note that this is a static function, so it can be called without
+ needing a wxWindow pointer.
- @see HideWithEffect()
+ @see SetFocus(), HasFocus()
*/
- virtual bool ShowWithEffect(wxShowEffect effect,
- unsigned timeout = 0);
+ static wxWindow* FindFocus();
/**
- Reenables window updating after a previous call to Freeze().
-
- To really thaw the control, it must be called exactly the same number
- of times as Freeze().
+ Find the first window with the given @e id.
- If the window has any children, they are recursively thawn too.
+ If @a parent is @NULL, the search will start from all top-level frames
+ and dialog boxes; if non-@NULL, the search will be limited to the given
+ window hierarchy.
+ The search is recursive in both cases.
- @see wxWindowUpdateLocker, Freeze(), IsFrozen()
+ @see FindWindow()
*/
- void Thaw();
+ static wxWindow* FindWindowById(long id, const wxWindow* parent = 0);
/**
- Turns the given @a flag on if it's currently turned off and vice versa.
- This function cannot be used if the value of the flag is 0 (which is often
- the case for default flags).
-
- Also, please notice that not all styles can be changed after the control
- creation.
+ Find a window by its label.
- @return Returns @true if the style was turned on by this function, @false
- if it was switched off.
+ Depending on the type of window, the label may be a window title
+ or panel item label. If @a parent is @NULL, the search will start from all
+ top-level frames and dialog boxes; if non-@NULL, the search will be
+ limited to the given window hierarchy.
+ The search is recursive in both cases.
- @see SetWindowStyleFlag(), HasFlag()
+ @see FindWindow()
*/
- bool ToggleWindowStyle(int flag);
+ static wxWindow* FindWindowByLabel(const wxString& label,
+ const wxWindow* parent = 0);
/**
- Transfers values from child controls to data areas specified by their
- validators. Returns @false if a transfer failed.
+ Find a window by its name (as given in a window constructor or Create()
+ function call).
- If the window has @c wxWS_EX_VALIDATE_RECURSIVELY extra style flag set,
- the method will also call TransferDataFromWindow() of all child windows.
+ If @a parent is @NULL, the search will start from all top-level frames
+ and dialog boxes; if non-@NULL, the search will be limited to the given
+ window hierarchy.
- @see TransferDataToWindow(), wxValidator, Validate()
+ The search is recursive in both cases. If no window with such name is found,
+ FindWindowByLabel() is called.
+
+ @see FindWindow()
*/
- virtual bool TransferDataFromWindow();
+ static wxWindow* FindWindowByName(const wxString& name,
+ const wxWindow* parent = 0);
/**
- Transfers values to child controls from data areas specified by their
- validators.
-
- If the window has @c wxWS_EX_VALIDATE_RECURSIVELY extra style flag set,
- the method will also call TransferDataToWindow() of all child windows.
-
- @return Returns @false if a transfer failed.
+ Returns the currently captured window.
- @see TransferDataFromWindow(), wxValidator, Validate()
+ @see HasCapture(), CaptureMouse(), ReleaseMouse(),
+ wxMouseCaptureLostEvent, wxMouseCaptureChangedEvent
*/
- virtual bool TransferDataToWindow();
+ static wxWindow* GetCapture();
/**
- Unregisters a system wide hotkey.
+ Create a new ID or range of IDs that are not currently in use.
+ The IDs will be reserved until assigned to a wxWindow ID
+ or unreserved with UnreserveControlId().
- @param hotkeyId
- Numeric identifier of the hotkey. Must be the same id that was passed to
- RegisterHotKey().
+ See @ref overview_windowids for more information.
- @return @true if the hotkey was unregistered successfully, @false if the
- id was invalid.
+ @param count
+ The number of sequential IDs to reserve.
- @remarks This function is currently only implemented under MSW.
+ @return Returns the ID or the first ID of the range, or wxID_NONE if the
+ specified number of identifiers couldn't be allocated.
- @see RegisterHotKey()
+ @see UnreserveControlId(), wxIdManager,
+ @ref overview_windowids
*/
- bool UnregisterHotKey(int hotkeyId);
+ static wxWindowID NewControlId(int count = 1);
/**
Unreserve an ID or range of IDs that was reserved by NewControlId().
*/
static void UnreserveControlId(wxWindowID id, int count = 1);
- /**
- Unset any existing tooltip.
-
- @since 2.9.0
+ //@}
- @see SetToolTip()
- */
- void UnsetToolTip();
- /**
- Calling this method immediately repaints the invalidated area of the window and
- all of its children recursively while this would usually only happen when the
- flow of control returns to the event loop.
- Notice that this function doesn't invalidate any area of the window so
- nothing happens if nothing has been invalidated (i.e. marked as requiring
- a redraw). Use Refresh() first if you want to immediately redraw the
- window unconditionally.
- */
- virtual void Update();
+protected:
/**
- This function sends one or more wxUpdateUIEvent to the window.
- The particular implementation depends on the window; for example a
- wxToolBar will send an update UI event for each toolbar button,
- and a wxFrame will send an update UI event for each menubar menu item.
+ Gets the size which best suits the window: for a control, it would be
+ the minimal size which doesn't truncate the control, for a panel - the
+ same size as it would have after a call to Fit().
- You can call this function from your application to ensure that your
- UI is up-to-date at this point (as far as your wxUpdateUIEvent handlers
- are concerned). This may be necessary if you have called
- wxUpdateUIEvent::SetMode() or wxUpdateUIEvent::SetUpdateInterval() to limit
- the overhead that wxWidgets incurs by sending update UI events in idle time.
- @a flags should be a bitlist of one or more of the wxUpdateUI enumeration.
+ The default implementation of this function is designed for use in container
+ windows, such as wxPanel, and works something like this:
+ -# If the window has a sizer then it is used to calculate the best size.
+ -# Otherwise if the window has layout constraints then those are used to
+ calculate the best size.
+ -# Otherwise if the window has children then the best size is set to be large
+ enough to show all the children.
+ -# Otherwise if there are no children then the window's minimal size will be
+ used as its best size.
+ -# Otherwise if there is no minimal size set, then the current size is used
+ for the best size.
- If you are calling this function from an OnInternalIdle or OnIdle
- function, make sure you pass the wxUPDATE_UI_FROMIDLE flag, since
- this tells the window to only update the UI elements that need
- to be updated in idle time. Some windows update their elements
- only when necessary, for example when a menu is about to be shown.
- The following is an example of how to call UpdateWindowUI from
- an idle function.
+ @see @ref overview_windowsizing
+ */
+ virtual wxSize DoGetBestSize() const;
- @code
- void MyWindow::OnInternalIdle()
- {
- if (wxUpdateUIEvent::CanUpdate(this))
- UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
- }
- @endcode
- @see wxUpdateUIEvent, DoUpdateWindowUI(), OnInternalIdle()
+ /**
+ Sets the initial window size if none is given (i.e. at least one of the
+ components of the size passed to ctor/Create() is wxDefaultCoord).
+ @deprecated @todo provide deprecation description
*/
- virtual void UpdateWindowUI(long flags = wxUPDATE_UI_NONE);
+ virtual void SetInitialBestSize(const wxSize& size);
/**
- Validates the current values of the child controls using their validators.
- If the window has @c wxWS_EX_VALIDATE_RECURSIVELY extra style flag set,
- the method will also call Validate() of all child windows.
-
- @return Returns @false if any of the validations failed.
+ Generate wxWindowDestroyEvent for this window.
- @see TransferDataFromWindow(), TransferDataToWindow(),
- wxValidator
- */
- virtual bool Validate();
+ This is called by the window itself when it is being destroyed and
+ usually there is no need to call it but see wxWindowDestroyEvent for
+ explanations of when you might want to do it.
+ */
+ void SendDestroyEvent();
/**
- Moves the pointer to the given position on the window.
+ This function is public in wxEvtHandler but protected in wxWindow
+ because for wxWindows you should always call ProcessEvent() on the
+ pointer returned by GetEventHandler() and not on the wxWindow object
+ itself.
- @note This function is not supported under Mac because Apple Human
- Interface Guidelines forbid moving the mouse cursor programmatically.
+ For convenience, a ProcessWindowEvent() method is provided as a synonym
+ for @code GetEventHandler()->ProcessEvent() @endcode.
- @param x
- The new x position for the cursor.
- @param y
- The new y position for the cursor.
+ Note that it's still possible to call these functions directly on the
+ wxWindow object (e.g. casting it to wxEvtHandler) but doing that will
+ create subtle bugs when windows with event handlers pushed on them are
+ involved.
+
+ This holds also for all other wxEvtHandler functions.
*/
- virtual void WarpPointer(int x, int y);
+ virtual bool ProcessEvent(wxEvent& event);
+
+ //@{
+ /**
+ See ProcessEvent() for more info about why you shouldn't use this function
+ and the reason for making this function protected in wxWindow.
+ */
+ bool SafelyProcessEvent(wxEvent& event);
+ virtual void QueueEvent(wxEvent *event);
+ virtual void AddPendingEvent(const wxEvent& event);
+ void ProcessPendingEvents();
+ bool ProcessThreadEvent(const wxEvent& event);
+ //@}
};
// Global functions/macros
// ============================================================================
-/** @ingroup group_funcmacro_misc */
+/** @addtogroup group_funcmacro_misc */
//@{
/**
projects / wxWidgets.git / blobdiff