/////////////////////////////////////////////////////////////////////////////
-/**
- 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.
*/
- virtual void AlwaysShowScrollbars(bool = true, bool = true);
+ 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 dir = wxBOTH);
+ //@{
/**
- A synonym for CentreOnParent().
+ Returns the grandparent of a window, or @NULL if there isn't one.
*/
- void CenterOnParent(int dir = wxBOTH);
+ 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.
+ Physically scrolls the pixels in the window and move child windows accordingly.
- 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.
+ @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)
- @remarks Dialog units are used for maintaining a dialog's proportions
- even if the font changes.
+ @remarks Note that you can often use wxScrolled instead of using this
+ function directly.
+ */
+ virtual void ScrollWindow(int dx, int dy,
+ const wxRect* rect = NULL);
- @see ConvertDialogToPixels()
+ /**
+ Same as #ScrollLines (-1).
*/
- wxPoint ConvertPixelsToDialog(const wxPoint& pt);
- wxSize ConvertPixelsToDialog(const wxSize& sz);
+ bool LineUp();
+
+ /**
+ Same as #ScrollLines (1).
+ */
+ bool LineDown();
+
+ /**
+ Same as #ScrollPages (-1).
+ */
+ bool PageUp();
+
+ /**
+ Same as #ScrollPages (1).
+ */
+ bool PageDown();
+
+ /**
+ Sets the position of one of the built-in scrollbars.
+
+ @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.
+
+ @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 void SetScrollPos(int orientation, int pos,
+ bool refresh = true);
+
+ /**
+ Sets the scrollbar properties of a built-in scrollbar.
+
+ @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.
+
+ @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 SetScrollbar(int orientation, int position,
+ int thumbSize, int range,
+ bool refresh = true);
//@}
+
/**
- 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.
+ @name Sizing functions
- @return @true if the window has either been successfully deleted, or it
- has been added to the list of windows pending real deletion.
+ See also the protected functions DoGetBestSize() and SetInitialBestSize().
*/
- virtual bool Destroy();
+ //@{
/**
- Destroys all children of a window. Called automatically by the destructor.
+ Sets the cached best size value.
+
+ @see GetBestSize()
*/
- bool DestroyChildren();
+ void CacheBestSize(const wxSize& size) const;
/**
- Returns true if this window is in process of being destroyed.
+ Converts client area size @a size to corresponding window size.
- 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.
+ 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.
- 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;
+ @since 2.8.8
+
+ @see WindowToClientSize()
+ */
+ virtual wxSize ClientToWindowSize(const wxSize& size) const;
/**
- Disables the window. Same as @ref Enable() Enable(@false).
+ 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.
- @return Returns @true if the window has been disabled, @false if it had
- been already disabled before the call to this function.
+ 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.
+
+ @since 2.8.8
+
+ @see ClientToWindowSize()
*/
- bool Disable();
+ virtual wxSize WindowToClientSize(const wxSize& size) const;
/**
- 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:
+ Sizes the window so that it fits around its subwindows.
- @code
- // do the window-specific processing after processing the update event
- void wxTopLevelWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
- {
- if ( event.GetSetEnabled() )
- Enable(event.GetEnabled());
+ 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.
- if ( event.GetSetText() )
- {
- if ( event.GetText() != GetTitle() )
- SetTitle(event.GetText());
- }
- }
+ Also, if the window has exactly one subwindow it is better (faster and the result
+ is more precise as Fit() adds some margin to account for fuzziness of its calculations)
+ to call:
+
+ @code
+ window->SetClientSize(child->GetSize());
@endcode
+
+ instead of calling Fit().
+
+ @see @ref overview_windowsizing
*/
- virtual void DoUpdateWindowUI(wxUpdateUIEvent& event);
+ virtual void Fit();
/**
- Enables or disables eligibility for drop file events (OnDropFiles).
+ Similar to Fit(), but sizes the interior (virtual) size of a window.
- @param accept
- If @true, the window is eligible for drop file events.
- If @false, the window will not accept drop file events.
+ Mainly useful with scrolled windows to reset scrollbars after sizing
+ changes that do not trigger a size event, and/or scrolled windows without
+ an interior sizer. This function similarly won't do anything if there are
+ no subwindows.
+ */
+ virtual void FitInside();
+
+ /**
+ This functions returns the best acceptable minimal size for the window.
+
+ 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().
+
+ Note that when you write your own widget you need to overload the
+ DoGetBestSize() function instead of this (non-virtual!) function.
+
+ @see CacheBestSize(), @ref overview_windowsizing
+ */
+ wxSize GetBestSize() 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.
+ 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).
+
+ @see GetSize(), GetVirtualSize()
+ */
+ void GetClientSize(int* width, int* height) const;
+
+ /**
+ @overload
+ */
+ wxSize GetClientSize() 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 is the method called by any wxSizer when they query the size
+ of a certain window or control.
+
+ @see GetBestSize(), SetInitialSize(), @ref overview_windowsizing
+ */
+ virtual wxSize GetEffectiveMinSize() const;
+
+ /**
+ Returns the maximum 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().
+
+ @see GetMaxSize(), @ref overview_windowsizing
+ */
+ virtual wxSize GetMaxClientSize() const;
+
+ /**
+ Returns the maximum size of the window.
+
+ 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().
+
+ @see GetMaxClientSize(), @ref overview_windowsizing
+ */
+ virtual wxSize GetMaxSize() const;
+
+ /**
+ 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.
+
+ It normally just returns the value set by SetMinClientSize(), but it can be
+ overridden to do the calculation on demand.
+
+ @see GetMinSize(), @ref overview_windowsizing
+ */
+ virtual wxSize GetMinClientSize() const;
+
+ /**
+ Returns the minimum size of the window, an indication to the sizer layout
+ mechanism that this is the minimum required size.
+
+ This method normally just returns the value set by SetMinSize(), but it
+ can be overridden to do the calculation on demand.
+
+ @see GetMinClientSize(), @ref overview_windowsizing
+ */
+ virtual wxSize GetMinSize() const;
+
+ /**
+ 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
+ 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(), @ref overview_windowsizing
+ */
+ void GetSize(int* width, int* height) const;
+
+ /**
+ See the GetSize(int*,int*) overload for more info.
+ */
+ wxSize GetSize() const;
+
+ /**
+ 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
+ */
+ wxSize GetVirtualSize() const;
+
+ /**
+ Like the other GetVirtualSize() overload but uses pointers instead.
+
+ @param width
+ Receives the window virtual width.
+ @param height
+ Receives the window virtual height.
+ */
+ void GetVirtualSize(int* width, int* height) const;
+
+ /**
+ Returns the size of the left/right and top/bottom borders of this window in x
+ and y components of the result respectively.
+ */
+ virtual wxSize GetWindowBorderSize() const;
+
+ /**
+ Resets the cached best size value so it will be recalculated the next time it
+ is needed.
+
+ @see CacheBestSize()
+ */
+ void InvalidateBestSize();
+
+ /**
+ Posts a size event to the window.
+
+ This is the same as SendSizeEvent() with @c wxSEND_EVENT_POST argument.
+ */
+ void PostSizeEvent();
+
+ /**
+ Posts a size event to the parent of this window.
+
+ This is the same as SendSizeEventToParent() with @c wxSEND_EVENT_POST
+ argument.
+ */
+ void PostSizeEventToParent();
+
+ /**
+ This function sends a dummy @ref 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.
- @remarks Windows only.
+ @param flags
+ May include @c wxSEND_EVENT_POST. Default value is 0.
*/
- virtual void DragAcceptFiles(bool accept);
+ virtual void SendSizeEvent(int flags = 0);
/**
- 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.
+ Safe wrapper for GetParent()->SendSizeEvent().
- @param enable
- If @true, enables the window for input. If @false, disables the window.
+ 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).
- @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 PostSizeEventToParent()
- @see IsEnabled(), Disable(), wxRadioBox::Enable
- */
- virtual bool Enable(bool enable = true);
+ @param flags
+ See description of this parameter in SendSizeEvent() documentation.
+ */
+ void SendSizeEventToParent(int flags = 0);
/**
- Finds the window or control which currently has the keyboard focus.
+ This sets the size of the window client area in pixels.
- @remarks Note that this is a static function, so it can be called without
- needing a wxWindow pointer.
+ 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 SetFocus(), HasFocus()
+ @see @ref overview_windowsizing
*/
- static wxWindow* FindFocus();
+ virtual void SetClientSize(int width, int height);
/**
- Find a child of this window, by @a id.
- May return @a this if it matches itself.
+ @overload
*/
- wxWindow* FindWindow(long id) const;
+ virtual void SetClientSize(const wxSize& size);
/**
- Find a child of this window, by name.
- May return @a this if it matches itself.
+ 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.
*/
- wxWindow* FindWindow(const wxString& name) const;
+ void SetContainingSizer(wxSizer* sizer);
/**
- Find the first window with the given @e id.
+ A @e smart SetSize that will fill in default size components with the
+ window's @e best size values.
- 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.
+ 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.
- @see FindWindow()
+ 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
*/
- static wxWindow* FindWindowById(long id, wxWindow* parent = NULL);
+ void SetInitialSize(const wxSize& size = wxDefaultSize);
/**
- Find a window by its label.
+ 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.
- 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.
+ Note that this method is just a shortcut for:
+ @code
+ SetMaxSize(ClientToWindowSize(size));
+ @endcode
- @see FindWindow()
+ @see SetMaxSize(), @ref overview_windowsizing
*/
- static wxWindow* FindWindowByLabel(const wxString& label,
- wxWindow* parent = NULL);
+ virtual void SetMaxClientSize(const wxSize& size);
/**
- 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.
+ Sets the maximum size of the window, to indicate to the sizer layout mechanism
+ that this is the maximum possible size.
- @see FindWindow()
+ @see SetMaxClientSize(), @ref overview_windowsizing
*/
- static wxWindow* FindWindowByName(const wxString& name,
- wxWindow* parent = NULL);
+ virtual void SetMaxSize(const wxSize& size);
/**
- Sizes the window so that it fits around its subwindows.
+ 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 won't do anything if there are no subwindows and will only really
- work correctly if sizers are used for the subwindows layout.
+ You may need to call this if you change the window size after
+ construction and before adding to its parent sizer.
- Also, if the window has exactly one subwindow it is better (faster and the result
- is more precise as Fit() adds some margin to account for fuzziness of its calculations)
- to call:
+ 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
- window->SetClientSize(child->GetSize());
+ SetMinSize(ClientToWindowSize(size));
@endcode
- instead of calling Fit().
-
- @see @ref overview_windowsizing
+ @see SetMinSize(), @ref overview_windowsizing
*/
- virtual void Fit();
+ virtual void SetMinClientSize(const wxSize& size);
/**
- Similar to Fit(), but sizes the interior (virtual) size of a window.
+ Sets the minimum size of the window, to indicate to the sizer layout
+ mechanism that this is the minimum required size.
- Mainly useful with scrolled windows to reset scrollbars after sizing
- changes that do not trigger a size event, and/or scrolled windows without
- an interior sizer. This function similarly won't do anything if there are
- no subwindows.
+ 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 SetMinClientSize(), @ref overview_windowsizing
*/
- virtual void FitInside();
+ virtual void SetMinSize(const wxSize& size);
/**
- Freezes the window or, in other words, prevents any updates from taking
- place on screen, the window is not redrawn at all.
+ Sets the size of the window in pixels.
- 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.
+ @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).
- If the window has any children, they are recursively frozen too.
+ @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.
- 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 Move(), @ref overview_windowsizing
+ */
+ void SetSize(int x, int y, int width, int height,
+ int sizeFlags = wxSIZE_AUTO);
- @see wxWindowUpdateLocker, Thaw(), IsFrozen()
+ /**
+ Sets the size of the window in pixels.
+ The size is specified using a wxRect, wxSize or by a couple of @c int objects.
+
+ @remarks This form must be used with non-default width and height values.
+
+ @see Move(), @ref overview_windowsizing
*/
- void Freeze();
+ virtual void SetSize(const wxRect& rect);
/**
- Gets the accelerator table for this window. See wxAcceleratorTable.
+ @overload
*/
- wxAcceleratorTable* GetAcceleratorTable();
+ virtual void SetSize(const wxSize& size);
/**
- Returns the accessible object for this window, if any.
- See also wxAccessible.
+ @overload
*/
- wxAccessible* GetAccessible();
+ virtual void SetSize(int width, int height);
/**
- @deprecated
- This method is deprecated, use GetEffectiveMinSize() instead.
+ Use of this function for windows which are not toplevel windows
+ (such as wxDialog or wxFrame) is discouraged.
+ Please use SetMinSize() and SetMaxSize() instead.
+
+ @see wxTopLevelWindow::SetSizeHints, @ref overview_windowsizing
*/
- wxSize GetAdjustedBestSize() const;
+ void SetSizeHints( const wxSize& minSize,
+ const wxSize& maxSize=wxDefaultSize,
+ const wxSize& incSize=wxDefaultSize);
/**
- Returns the background colour of the window.
+ Sets the virtual size of the window in pixels.
- @see SetBackgroundColour(), SetForegroundColour(), GetForegroundColour()
+ @see @ref overview_windowsizing
*/
- wxColour GetBackgroundColour() const;
+ void SetVirtualSize(int width, int height);
/**
- Returns the background style of the window.
- The background style can be one of the wxBackgroundStyle.
+ @overload
+ */
+ void SetVirtualSize(const wxSize& size);
- @see SetBackgroundColour(), GetForegroundColour(),
- SetBackgroundStyle(), SetTransparent()
+ //@}
+
+
+ /**
+ @name Positioning functions
*/
- virtual wxBackgroundStyle GetBackgroundStyle() const;
+ //@{
/**
- This functions returns the best acceptable minimal size for the window.
+ A synonym for Centre().
+ */
+ void Center(int dir = wxBOTH);
- 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().
+ /**
+ A synonym for CentreOnParent().
*/
- wxSize GetBestSize() const;
+ void CenterOnParent(int dir = wxBOTH);
/**
- Returns the currently captured window.
+ 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()
+ */
+ 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 HasCapture(), CaptureMouse(), ReleaseMouse(),
- wxMouseCaptureLostEvent, wxMouseCaptureChangedEvent
+ @see wxTopLevelWindow::CentreOnScreen
*/
- static wxWindow* GetCapture();
-
+ void CentreOnParent(int direction = wxBOTH);
/**
- Returns the caret() associated with the window.
- */
- wxCaret* GetCaret() const;
+ 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.
- /**
- Returns the character height for this window.
- */
- virtual int GetCharHeight() const;
+ @param x
+ Receives the x position of the window if non-@NULL.
+ @param y
+ Receives the y position of the window if non-@NULL.
- /**
- Returns the average character width for this window.
+ @see GetScreenPosition()
*/
- virtual int GetCharWidth() const;
+ void GetPosition(int* x, int* y) const;
- //@{
/**
- 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*.
+ 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.
+
+ @see GetScreenPosition()
*/
- wxWindowList& GetChildren();
- const wxWindowList& GetChildren() const;
- //@}
+ wxPoint GetPosition() const;
/**
- Returns the default font and colours which are used by the control.
-
- 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.
-
- 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.
-
- 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().
-
- 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.
+ Returns the position and size of the window as a wxRect object.
- @see InheritAttributes()
+ @see GetScreenRect()
*/
- static wxVisualAttributes GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
+ wxRect GetRect() 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.
- 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).
+ Returns the window position in screen coordinates, whether the window is a
+ child window or a top level one.
- @param width
- Receives the client width in pixels.
- @param height
- Receives the client height in pixels.
+ @param x
+ Receives the x position of the window on the screen if non-@NULL.
+ @param y
+ Receives the y position of the window on the screen if non-@NULL.
- @see GetSize(), GetVirtualSize()
+ @see GetPosition()
*/
- void GetClientSize(int* width, int* height) const;
- wxSize GetClientSize() const;
- //@}
+ void GetScreenPosition(int* x, int* y) const;
/**
- Returns a pointer to the window's layout constraints, or @NULL if there are none.
- */
- wxLayoutConstraints* GetConstraints() const;
+ Returns the window position in screen coordinates, whether the window is a
+ child window or a top level one.
- /**
- Return the sizer that this window is a member of, if any, otherwise @NULL.
+ @see GetPosition()
*/
- wxSizer* GetContainingSizer() const;
+ wxPoint GetScreenPosition() const;
/**
- Return the cursor associated with this window.
+ Returns the position and size of the window on the screen as a wxRect object.
- @see SetCursor()
+ @see GetRect()
*/
- const wxCursor& GetCursor() const;
+ wxRect GetScreenRect() const;
/**
- Currently this is the same as calling
- wxWindow::GetClassDefaultAttributes(wxWindow::GetWindowVariant()).
+ Moves the window to the given position.
- 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.
+ @param x
+ Required x position.
+ @param y
+ Required y position.
+ @param flags
+ See SetSize() for more info about this parameter.
- 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.
+ @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()
*/
- virtual wxVisualAttributes GetDefaultAttributes() const;
+ void Move(int x, int y, int flags = wxSIZE_USE_EXISTING);
/**
- Returns the associated drop target, which may be @NULL.
+ Moves the window to the given position.
- @see SetDropTarget(), @ref overview_dnd
- */
- virtual wxDropTarget* GetDropTarget() const;
+ @param pt
+ wxPoint object representing the position.
+ @param flags
+ See SetSize() for more info about this parameter.
- /**
- 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.
+ @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 GetBestSize(), SetInitialSize(), @ref overview_windowsizing
+ @see SetSize()
*/
- wxSize GetEffectiveMinSize() const;
+ void Move(const wxPoint& pt, int flags = wxSIZE_USE_EXISTING);
- /**
- Returns the event handler for this window.
- By default, the window is its own event handler.
+ //@}
- @see SetEventHandler(), PushEventHandler(),
- PopEventHandler(), wxEvtHandler::ProcessEvent, wxEvtHandler
- */
- wxEvtHandler* GetEventHandler() const;
/**
- Returns the extra style bits for the window.
+ @name Coordinate conversion functions
*/
- long GetExtraStyle() const;
+ //@{
/**
- Returns the font for this window.
+ Converts to screen coordinates from coordinates relative to this window.
- @see SetFont()
+ @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
*/
- wxFont GetFont() const;
+ void ClientToScreen(int* x, int* y) const;
/**
- Returns the foreground colour of the window.
-
- @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.
+ Converts to screen coordinates from coordinates relative to this window.
- @see SetForegroundColour(), SetBackgroundColour(),
- GetBackgroundColour()
+ @param pt
+ The client position for the second form of the function.
*/
- wxColour GetForegroundColour() const;
+ wxPoint ClientToScreen(const wxPoint& pt) const;
/**
- Returns the grandparent of a window, or @NULL if there isn't one.
+ Converts a point or size from dialog units to pixels.
+
+ 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.
+
+ @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
+
+ @see ConvertPixelsToDialog()
*/
- wxWindow* GetGrandParent() const;
+ wxPoint ConvertDialogToPixels(const wxPoint& pt);
/**
- 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
*/
- virtual WXWidget GetHandle() const;
+ wxSize ConvertDialogToPixels(const wxSize& sz);
/**
- 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.
+ Converts a point or size from pixels to dialog units.
- @see SetHelpText(), GetHelpTextAtPoint(), wxHelpProvider
- */
- wxString GetHelpText() const;
+ 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.
- /**
- 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.
+ @remarks Dialog units are used for maintaining a dialog's proportions
+ even if the font changes.
- @param point
- Coordinates of the mouse at the moment of help event emission.
- @param origin
- Help event origin, see also wxHelpEvent::GetOrigin.
+ @see ConvertDialogToPixels()
*/
- virtual wxString GetHelpTextAtPoint(const wxPoint point,
- wxHelpEvent::Origin origin) const;
+ wxPoint ConvertPixelsToDialog(const wxPoint& pt);
/**
- Returns the identifier of the window.
+ @overload
+ */
+ wxSize ConvertPixelsToDialog(const wxSize& sz);
- @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.
+ /**
+ Converts from screen to client window coordinates.
- @see SetId(), @ref overview_windowids
+ @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.
*/
- wxWindowID GetId() const;
+ void ScreenToClient(int* x, int* y) const;
/**
- Generic way of getting a label from any window, for
- identification purposes.
+ Converts from screen to client window coordinates.
- @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.
+ @param pt
+ The screen position.
*/
- virtual wxString GetLabel() const;
+ wxPoint ScreenToClient(const wxPoint& pt) const;
- /**
- Returns the maximum 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().
- @see GetMaxSize()
+ /**
+ @name Drawing-related functions
*/
- virtual wxSize GetMaxClientSize() const;
+ //@{
/**
- Returns the maximum size of the window.
-
- 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().
-
- @see GetMaxClientSize()
+ Clears the window by filling it with the current background colour. Does not
+ cause an erase background event to be generated.
*/
- virtual wxSize GetMaxSize() const;
+ virtual void ClearBackground();
/**
- 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.
+ Freezes the window or, in other words, prevents any updates from taking
+ place on screen, the window is not redrawn at all.
- It normally just returns the value set by SetMinClientSize(), but it can be
- overridden to do the calculation on demand.
+ 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.
+
+ If the window has any children, they are recursively frozen too.
+
+ 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 GetMinSize()
+ @see wxWindowUpdateLocker, Thaw(), IsFrozen()
*/
- virtual wxSize GetMinClientSize() const;
+ void Freeze();
/**
- Returns the minimum size of the window, an indication to the sizer layout
- mechanism that this is the minimum required size.
+ Reenables window updating after a previous call to Freeze().
- This method normally just returns the value set by SetMinSize(), but it
- can be overridden to do the calculation on demand.
+ 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 GetMinClientSize()
+ @see wxWindowUpdateLocker, Freeze(), IsFrozen()
*/
- virtual wxSize GetMinSize() const;
+ void Thaw();
/**
- 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().
+ Returns @true if the window is currently frozen by a call to Freeze().
- @see SetName()
+ @see Freeze(), Thaw()
*/
- virtual wxString GetName() const;
+ bool IsFrozen() const;
/**
- Returns the next window after this one among the parent children or @NULL
- if this window is the last child.
+ Returns the background colour of the window.
- @since 2.8.8
+ @see SetBackgroundColour(), SetForegroundColour(), GetForegroundColour()
+ */
+ wxColour GetBackgroundColour() const;
- @see GetPrevSibling()
+ /**
+ Returns the background style of the window.
+ The background style can be one of the wxBackgroundStyle.
+
+ @see SetBackgroundColour(), GetForegroundColour(),
+ SetBackgroundStyle(), SetTransparent()
*/
- wxWindow* GetNextSibling() const;
+ virtual wxBackgroundStyle GetBackgroundStyle() const;
+ /**
+ Returns the character height for this window.
+ */
+ virtual int GetCharHeight() const;
/**
- Returns the parent of the window, or @NULL if there is no parent.
+ Returns the average character width for this window.
*/
- wxWindow* GetParent() const;
+ virtual int GetCharWidth() const;
/**
- 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.
+ Currently this is the same as calling
+ wxWindow::GetClassDefaultAttributes(wxWindow::GetWindowVariant()).
- @param menu
- The menu to show
- @param pos
- The position at which to show the menu in client coordinates
+ 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.
- @return The selected menu item id or wxID_NONE if none selected or an
- error occurred.
+ 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.
*/
- int GetPopupMenuSelectionFromUser(wxMenu& menu, const wxPoint& pos);
+ virtual wxVisualAttributes GetDefaultAttributes() const;
/**
- See the GetPopupMenuSelectionFromUser(wxMenu&, const wxPoint&) overload.
- This overload differs only because it takes two integers for the
- menu position instead of a wxPoint.
+ Returns the font for this window.
+
+ @see SetFont()
*/
- int GetPopupMenuSelectionFromUser(wxMenu& menu, int x, int y);
+ wxFont GetFont() const;
/**
- 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.
+ Returns the foreground colour of the window.
- @param x
- Receives the x position of the window if non-@NULL.
- @param y
- Receives the y position of the window if non-@NULL.
+ @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 GetScreenPosition()
+ @see SetForegroundColour(), SetBackgroundColour(),
+ GetBackgroundColour()
*/
- void GetPosition(int* x, int* y) const;
+ wxColour GetForegroundColour() const;
/**
- 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.
+ Gets the dimensions of the string as it would be drawn on the
+ window with the currently selected font.
- @see GetScreenPosition()
+ 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).
*/
- wxPoint GetPosition() const;
+ virtual void GetTextExtent(const wxString& string, int* w, int* h,
+ int* descent = NULL,
+ int* externalLeading = NULL,
+ const wxFont* font = NULL) const;
/**
- Returns the previous window before this one among the parent children or @c
- @NULL if this window is the first child.
+ Gets the dimensions of the string as it would be drawn on the
+ window with the currently selected font.
+ */
+ wxSize GetTextExtent(const wxString& string) const;
- @since 2.8.8
+ /**
+ Returns the region specifying which parts of the window have been damaged.
+ Should only be called within an wxPaintEvent handler.
- @see GetNextSibling()
+ @see wxRegion, wxRegionIterator
*/
- wxWindow* GetPrevSibling() const;
+ const wxRegion& GetUpdateRegion() const;
/**
- Returns the position and size of the window as a wxRect object.
+ Returns @true if this window background is transparent (as, for example,
+ for wxStaticText) and should show the parent window background.
- @see GetScreenRect()
+ 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.
*/
- wxRect GetRect() const;
+ virtual bool HasTransparentBackground();
/**
- Returns the window position in screen coordinates, whether the window is a
- child window or a top level one.
+ 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 x
- Receives the x position of the window on the screen if non-@NULL.
- @param y
- Receives the y position of the window on the screen if non-@NULL.
+ @param eraseBackground
+ If @true, the background will be erased.
+ @param rect
+ If non-@NULL, only the given rectangle will be treated as damaged.
- @see GetPosition()
+ @see RefreshRect()
*/
- void GetScreenPosition(int* x, int* y) const;
+ virtual void Refresh(bool eraseBackground = true,
+ const wxRect* rect = NULL);
/**
- Returns the window position in screen coordinates, whether the window is a
- child window or a top level one.
+ Redraws the contents of the given rectangle: only the area inside it will be
+ repainted.
- @see GetPosition()
+ 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)).
*/
- wxPoint GetScreenPosition() const;
+ void RefreshRect(const wxRect& rect, bool eraseBackground = true);
/**
- Returns the position and size of the window on the screen as a wxRect object.
+ 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.
- @see GetRect()
+ 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.
*/
- wxRect GetScreenRect() const;
+ virtual void Update();
/**
- Returns the built-in scrollbar position.
+ 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.
+
+ @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 See SetScrollbar()
+ @see GetBackgroundColour(), SetForegroundColour(),
+ GetForegroundColour(), ClearBackground(),
+ Refresh(), wxEraseEvent
*/
- virtual int GetScrollPos(int orientation) const;
+ virtual bool SetBackgroundColour(const wxColour& colour);
/**
- Returns the built-in scrollbar range.
+ Sets the background style of the window. see GetBackgroundStyle() for
+ the description of the possible style values.
- @see SetScrollbar()
+ @see SetBackgroundColour(), GetForegroundColour(),
+ SetTransparent()
*/
- virtual int GetScrollRange(int orientation) const;
+ virtual bool SetBackgroundStyle(wxBackgroundStyle style);
/**
- Returns the built-in scrollbar thumb size.
+ 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.
+
+ 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 font
+ Font to associate with this window, pass
+ wxNullFont to reset to the default font.
+
+ @return @true if the want was really changed, @false if it was already set
+ to this font and so nothing was done.
- @see SetScrollbar()
+ @see GetFont(), InheritAttributes()
*/
- virtual int GetScrollThumb(int orientation) const;
+ virtual bool SetFont(const wxFont& font);
/**
- Returns the size of the entire window in pixels, including title bar, border,
- scrollbars, etc.
+ Sets the foreground colour of the window.
+ Please see InheritAttributes() for explanation of the difference between
+ this method and SetOwnForegroundColour().
- 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 colour
+ The colour to be used as the foreground colour, pass
+ wxNullColour to reset to the default colour.
- @param width
- Receives the window width.
- @param height
- Receives the window height.
+ @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 GetClientSize(), GetVirtualSize()
+ @see GetForegroundColour(), SetBackgroundColour(),
+ GetBackgroundColour(), ShouldInheritColours()
*/
- void GetSize(int* width, int* height) const;
+ virtual bool SetForegroundColour(const wxColour& colour);
/**
- See the GetSize(int*,int*) overload for more info.
+ Sets the background colour of the window but prevents it from being inherited
+ by the children of this window.
+
+ @see SetBackgroundColour(), InheritAttributes()
*/
- wxSize GetSize() const;
+ void SetOwnBackgroundColour(const wxColour& colour);
/**
- Return the sizer associated with the window by a previous call to
- SetSizer() or @NULL.
+ Sets the font of the window but prevents it from being inherited by the
+ children of this window.
+
+ @see SetFont(), InheritAttributes()
*/
- wxSizer* GetSizer() const;
+ void SetOwnFont(const wxFont& font);
/**
- 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.
+ Sets the foreground colour of the window but prevents it from being inherited
+ by the children of this window.
- @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).
+ @see SetForegroundColour(), InheritAttributes()
*/
- virtual void GetTextExtent(const wxString& string, int* w, int* h,
- int* descent = NULL,
- int* externalLeading = NULL,
- const wxFont* font = NULL) const;
+ void SetOwnForegroundColour(const wxColour& colour);
/**
- Gets the dimensions of the string as it would be drawn on the
- window with the currently selected font.
+ @deprecated use wxDC::SetPalette instead.
*/
- wxSize GetTextExtent(const wxString& string) const;
+ void SetPalette(const wxPalette& pal);
/**
- Get the associated tooltip or @NULL if none.
+ 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.
+
+ The base class version returns @false, but this method is overridden in
+ wxControl where it returns @true.
*/
- wxToolTip* GetToolTip() const;
+ virtual bool ShouldInheritColours() const;
/**
- Returns the region specifying which parts of the window have been damaged.
- Should only be called within an wxPaintEvent handler.
+ 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.
- @see wxRegion, wxRegionIterator
+ 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.
*/
- const wxRegion& GetUpdateRegion() const;
+ virtual void SetThemeEnabled(bool enable);
/**
- Returns a pointer to the current validator for the window, or @NULL if
- there is none.
+ 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.
*/
- virtual wxValidator* GetValidator();
+ virtual bool CanSetTransparent();
- //@{
/**
- 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.
+ 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 width
- Receives the window virtual width.
- @param height
- Receives the window virtual height.
+ 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.
*/
- void GetVirtualSize(int* width, int* height) const;
- wxSize GetVirtualSize() const;
+ virtual bool SetTransparent(wxByte alpha);
+
//@}
- /**
- Returns the size of the left/right and top/bottom borders of this window in x
- and y components of the result respectively.
- */
- virtual wxSize GetWindowBorderSize() 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 Event-handling functions
+
+ 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 long GetWindowStyleFlag() const;
+ //@{
/**
- Returns the value previously passed to SetWindowVariant().
+ Returns the event handler for this window.
+ By default, the window is its own event handler.
+
+ @see SetEventHandler(), PushEventHandler(),
+ PopEventHandler(), wxEvtHandler::ProcessEvent, wxEvtHandler
*/
- wxWindowVariant GetWindowVariant() const;
+ wxEvtHandler* GetEventHandler() const;
/**
- 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.
+ 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.
@code
GetEventHandler()->SafelyProcessEvent(event);
@endcode
+
+ @see ProcessWindowEvent()
*/
bool HandleWindowEvent(wxEvent& event) const;
/**
- Returns @true if this window has the current mouse capture.
+ Convenient wrapper for ProcessEvent().
- @see CaptureMouse(), ReleaseMouse(), wxMouseCaptureLostEvent,
- wxMouseCaptureChangedEvent
+ 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.
*/
- virtual bool HasCapture() const;
+ bool ProcessWindowEvent(wxEvent& event);
/**
- Returns @true if the window has the given @a exFlag bit set in its
- extra styles.
-
- @see SetExtraStyle()
- */
- bool HasExtraStyle(int exFlag) const;
+ Removes and returns the top-most event handler on the event handler stack.
- /**
- Returns @true if the window has the given @a flag bit set.
- */
- bool HasFlag(int flag) const;
+ 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.
- /**
- Returns @true if the window (or in case of composite controls, its main
- child window) has focus.
+ 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).
- @see FindFocus()
- */
- virtual bool HasFocus() const;
+ @param deleteHandler
+ If this is @true, the handler will be deleted after it is removed
+ (and the returned value will be @NULL).
- /**
- 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.
+ @see @ref overview_events_processing
*/
- virtual bool HasMultiplePages() const;
+ wxEvtHandler* PopEventHandler(bool deleteHandler = false);
/**
- Returns @true if this window has a scroll bar for this orientation.
-
- @param orient
- Orientation to check, either wxHORIZONTAL or wxVERTICAL.
- */
- bool HasScrollbar(int orient) const;
+ Pushes this event handler onto the event stack for the window.
- /**
- Returns @true if this window background is transparent (as, for example,
- for wxStaticText) and should show the parent window background.
+ 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.
- 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();
+ 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.
- /**
- Equivalent to calling wxWindow::Show(@false).
- */
- bool Hide();
+ 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
- /**
- This function hides a window, like Hide(), but using a special visual
- effect if possible.
+ Note that you can use wxWindow::PopEventHandler to remove the event handler.
- The parameters of this function are the same as for ShowWithEffect(),
- please see their description there.
+ @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).
- @since 2.9.0
+ @see @ref overview_events_processing
*/
- virtual bool HideWithEffect(wxShowEffect effect,
- unsigned int timeout = 0);
+ void PushEventHandler(wxEvtHandler* handler);
/**
- 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();
+ Find the given @a handler in the windows event handler stack and
+ removes (but does not delete) it from the stack.
- /**
- Sends an @c wxEVT_INIT_DIALOG event, whose handler usually transfers data
- to the dialog via validators.
- */
- virtual void InitDialog();
+ See wxEvtHandler::Unlink() for more info.
- /**
- Resets the cached best size value so it will be recalculated the next time it
- is needed.
- */
- void InvalidateBestSize();
+ @param handler
+ The event handler to remove, must be non-@NULL and
+ must be present in this windows event handlers stack.
- /**
- 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.
+ @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 wxBufferedDC
+ @see PushEventHandler(), PopEventHandler()
*/
- virtual bool IsDoubleBuffered() const;
+ bool RemoveEventHandler(wxEvtHandler* handler);
/**
- Returns @true if the window is enabled, i.e. if it accepts user input,
- @false otherwise.
+ Sets the event handler for this window.
- 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()
+ 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 Enable()
- */
- bool IsEnabled() const;
+ @param handler
+ Specifies the handler to be set. Cannot be @NULL.
- //@{
- /**
- 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.
- */
- 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;
- //@}
+ @see @ref overview_events_processing
+ */
+ void SetEventHandler(wxEvtHandler* handler);
/**
- Returns @true if the window is currently frozen by a call to Freeze().
+ wxWindows cannot be used to form event handler chains; this function
+ thus will assert when called.
- @see Freeze(), Thaw()
+ Note that instead you can use PushEventHandler() or SetEventHandler() to
+ implement a stack of event handlers to override wxWindow's own
+ event handling mechanism.
*/
- bool IsFrozen() const;
+ virtual void SetNextHandler(wxEvtHandler* handler);
/**
- Returns @true if the window is retained, @false otherwise.
+ wxWindows cannot be used to form event handler chains; this function
+ thus will assert when called.
- @remarks Retained windows are only available on X platforms.
+ 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 bool IsRetained() const;
+ virtual void SetPreviousHandler(wxEvtHandler* handler);
- /**
- Return whether a scrollbar is always shown.
+ //@}
- @param orient
- Orientation to check, either wxHORIZONTAL or wxVERTICAL.
- @see AlwaysShowScrollbars()
- */
- virtual bool IsScrollbarAlwaysShown(int orient) const;
/**
- Returns @true if the window is shown, @false if it has been hidden.
-
- @see IsShownOnScreen()
+ @name Window styles functions
*/
- virtual bool IsShown() const;
+ //@{
/**
- 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 IsShown()
+ Returns the extra style bits for the window.
*/
- virtual bool IsShownOnScreen() const;
+ long GetExtraStyle() 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.
+ Gets the window style that was passed to the constructor or Create()
+ method. GetWindowStyle() is another name for the same function.
*/
- bool IsThisEnabled() const;
+ virtual long GetWindowStyleFlag() 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).
+ See GetWindowStyleFlag() for more info.
*/
- virtual bool IsTopLevel() const;
+ long GetWindowStyle() const;
/**
- Invokes the constraint-based layout algorithm or the sizer-based algorithm
- for this window.
-
- See SetAutoLayout(): when auto layout is on, this function gets called automatically
- when the window is resized.
+ Returns @true if the window has the given @a exFlag bit set in its
+ extra styles.
- @see @ref overview_windowsizing
+ @see SetExtraStyle()
*/
- virtual bool Layout();
+ bool HasExtraStyle(int exFlag) const;
/**
- Lowers the window to the bottom of the window hierarchy (Z-order).
-
- @see Raise()
+ Returns @true if the window has the given @a flag bit set.
*/
- virtual void Lower();
+ bool HasFlag(int flag) 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.
+ Sets the extra style bits for the window.
+ The currently defined extra style bits are reported in the class
+ description.
*/
- virtual void MakeModal(bool modal = true);
+ virtual void SetExtraStyle(long exStyle);
/**
- Moves the window to the given position.
+ 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.
- @param x
- Required x position.
- @param y
- Required y position.
- @param flags
- See SetSize() for more info about this parameter.
+ See @ref overview_windowstyles "Window styles" for more information about flags.
- @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 GetWindowStyleFlag()
+ */
+ virtual void SetWindowStyleFlag(long style);
- @see SetSize()
+ /**
+ See SetWindowStyleFlag() for more info.
*/
- void Move(int x, int y, int flags = wxSIZE_USE_EXISTING);
+ void SetWindowStyle(long style);
/**
- Moves the window to the given position.
+ 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).
- @param pt
- wxPoint object representing the position.
- @param flags
- See SetSize() for more info about this parameter.
+ Also, please notice that not all styles can be changed after the control
+ creation.
- @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
+ @return Returns @true if the style was turned on by this function, @false
+ if it was switched off.
- @see SetSize()
+ @see SetWindowStyleFlag(), HasFlag()
*/
- void Move(const wxPoint& pt, int flags = wxSIZE_USE_EXISTING);
+ bool ToggleWindowStyle(int flag);
+
+ //@}
+
+
+ /**
+ @name Tab order functions
+ */
+ //@{
/**
Moves this window in the tab navigation order after the specified @e win.
*/
bool NavigateIn(int flags = IsForward);
+ //@}
+
+
+
/**
- 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().
+ @name Z order functions
+ */
+ //@{
- See @ref overview_windowids for more information.
+ /**
+ Lowers the window to the bottom of the window hierarchy (Z-order).
- @param count
- The number of sequential IDs to reserve.
+ @remarks
+ This function only works for wxTopLevelWindow-derived classes.
- @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 Raise()
+ */
+ virtual void Lower();
- @see UnreserveControlId(), wxIdManager,
- @ref overview_windowids
+ /**
+ Raises the window to the top of the window hierarchy (Z-order).
+
+ @remarks
+ This function only works for wxTopLevelWindow-derived classes.
+
+ @see Lower()
*/
- static wxWindowID NewControlId(int count = 1);
+ virtual void Raise();
+
+ //@}
+
/**
- 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 Window status 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.
+
+ /**
+ Equivalent to calling wxWindow::Show(@false).
*/
- virtual void OnInternalIdle();
+ bool Hide();
/**
- Same as #ScrollLines (-1).
+ 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.
+
+ @since 2.9.0
*/
- bool LineUp();
+ virtual bool HideWithEffect(wxShowEffect effect,
+ unsigned int timeout = 0);
+ /**
+ 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()
+
+ @see Enable()
+ */
+ bool IsEnabled() const;
/**
- Same as #ScrollLines (1).
+ 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.
*/
- bool LineDown();
+ bool IsExposed(int x, int y) const;
/**
- Same as #ScrollPages (-1).
+ @overload
*/
- bool PageUp();
+ bool IsExposed(wxPoint& pt) const;
/**
- Same as #ScrollPages (1).
+ @overload
*/
- bool PageDown();
+ bool IsExposed(int x, int y, int w, int h) const;
+
+ /**
+ @overload
+ */
+ bool IsExposed(wxRect& rect) const;
+ /**
+ Returns @true if the window is shown, @false if it has been hidden.
+ @see IsShownOnScreen()
+ */
+ virtual bool IsShown() const;
/**
- Removes and returns the top-most event handler on the event handler stack.
+ 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.
- @param deleteHandler
- If this is @true, the handler will be deleted after it is removed.
- The default value is @false.
+ @see IsShown()
+ */
+ virtual bool IsShownOnScreen() const;
+
+ /**
+ Disables the window. Same as @ref Enable() Enable(@false).
- @see SetEventHandler(), GetEventHandler(),
- PushEventHandler(), 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.
*/
- wxEvtHandler* PopEventHandler(bool deleteHandler = false);
+ bool Disable();
- //@{
/**
- Pops up the given menu at the specified coordinates, relative to this
- window, and returns control when the user has dismissed the menu.
+ 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.
- 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.
+ @param enable
+ If @true, enables the window for input. If @false, disables the window.
- @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.
+ @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.
- @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 IsEnabled(), Disable(), wxRadioBox::Enable
+ */
+ virtual bool Enable(bool enable = true);
- @see wxMenu
+ /**
+ 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.
+
+ @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.
*/
- bool PopupMenu(wxMenu* menu,
- const wxPoint& pos = wxDefaultPosition);
- bool PopupMenu(wxMenu* menu, int x, int y);
- //@}
+ virtual bool Show(bool show = true);
/**
- Posts a size event to the window.
+ This function shows a window, like Show(), but using a special visual
+ effect if possible.
- This is the same as SendSizeEvent() with @c wxSEND_EVENT_POST argument.
- */
- void PostSizeEvent();
+ @param effect
+ The effect to use.
- /**
- Posts a size event to the parent of this window.
+ @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.
- This is the same as SendSizeEventToParent() with @c wxSEND_EVENT_POST
- argument.
- */
- void PostSizeEventToParent();
+ @note Currently this function is only implemented in wxMSW and does the
+ same thing as Show() in the other ports.
- /**
- Pushes this event handler onto the event stack for the window.
+ @since 2.9.0
- @param handler
- Specifies the handler to be pushed.
+ @see HideWithEffect()
+ */
+ virtual bool ShowWithEffect(wxShowEffect effect,
+ unsigned int timeout = 0);
- @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
+ //@}
+
+
+ /**
+ @name Context-sensitive help functions
*/
- 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.
+ 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 Lower()
+ @see SetHelpText(), GetHelpTextAtPoint(), wxHelpProvider
*/
- virtual void Raise();
+ wxString GetHelpText() const;
/**
- 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.
+ Sets 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 RefreshRect()
+ @see GetHelpText(), wxHelpProvider::AddHelp()
*/
- virtual void Refresh(bool eraseBackground = true,
- const wxRect* rect = NULL);
+ void SetHelpText(const wxString& helpText);
/**
- Redraws the contents of the given rectangle: only the area inside it will be
- repainted.
+ 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.
- 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)).
+ @param point
+ Coordinates of the mouse at the moment of help event emission.
+ @param origin
+ Help event origin, see also wxHelpEvent::GetOrigin.
*/
- void RefreshRect(const wxRect& rect, bool eraseBackground = true);
+ virtual wxString GetHelpTextAtPoint(const wxPoint& point,
+ wxHelpEvent::Origin origin) const;
/**
- 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.
+ Get the associated tooltip or @NULL if none.
+ */
+ wxToolTip* GetToolTip() const;
- @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.
+ /**
+ Attach a tooltip to the window.
- @return @true if the hotkey was registered successfully. @false if some
- other application already registered a hotkey with this
- modifier/virtualKeyCode combination.
+ 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.
- @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.
+ 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 UnregisterHotKey()
+ @see GetToolTip(), wxToolTip
*/
- bool RegisterHotKey(int hotkeyId, int modifiers,
- int virtualKeyCode);
+ void SetToolTip(const wxString& tip);
/**
- Releases mouse input captured with CaptureMouse().
-
- @see CaptureMouse(), HasCapture(), ReleaseMouse(),
- wxMouseCaptureLostEvent, wxMouseCaptureChangedEvent
+ @overload
*/
- void ReleaseMouse();
+ void SetToolTip(wxToolTip* tip);
/**
- Removes a child window.
+ Unset any existing tooltip.
- 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.
+ @since 2.9.0
- @param child
- Child window to remove.
+ @see SetToolTip()
+ */
+ void UnsetToolTip();
+
+ //@}
+
+
+ /**
+ @name Popup/context menu functions
*/
- virtual void RemoveChild(wxWindow* child);
+ //@{
/**
- Find the given @a handler in the windows event handler chain and remove
- (but not delete) it from it.
+ This function shows a popup menu at the given position in this window and
+ returns the selected id.
- @param handler
- The event handler to remove, must be non-@NULL and
- must be present in this windows event handlers chain
+ 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.
- @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).
+ 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.
- @see PushEventHandler(), PopEventHandler()
- */
- bool RemoveEventHandler(wxEvtHandler* handler);
+ 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.
- /**
- 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.
+ @return
+ The selected menu item id or @c wxID_NONE if none selected or an
+ error occurred.
- @param newParent
- New parent.
+ @since 2.9.0
*/
- virtual bool Reparent(wxWindow* newParent);
+ int GetPopupMenuSelectionFromUser(wxMenu& menu, const wxPoint& pos);
- //@{
/**
- 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.
+ @overload
*/
- virtual void ScreenToClient(int* x, int* y) const;
- virtual wxPoint ScreenToClient(const wxPoint& pt) const;
- //@}
+ int GetPopupMenuSelectionFromUser(wxMenu& menu, int x, int y);
/**
- Scrolls the window by the given number of lines down (if @a lines is
- positive) or up.
+ Pops up the given menu at the specified coordinates, relative to this
+ window, and returns control when the user has dismissed the menu.
- @return Returns @true if the window was scrolled, @false if it was already
- on top/bottom and nothing was done.
+ 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.
- @remarks This function is currently only implemented under MSW and
- wxTextCtrl under wxGTK (it also works for wxScrolled classes
- under all platforms).
+ @a menu is the menu to pop up.
- @see ScrollPages()
+ 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).
+
+ @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 wxMenu
*/
- virtual bool ScrollLines(int lines);
+ bool PopupMenu(wxMenu* menu,
+ const wxPoint& pos = wxDefaultPosition);
/**
- Scrolls the window by the given number of pages down (if @a pages is
- positive) or up.
+ @overload
+ */
+ bool PopupMenu(wxMenu* menu, int x, int y);
- @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()
+ /**
+ Validator functions
*/
- virtual bool ScrollPages(int pages);
+ //@{
/**
- Physically scrolls the pixels in the window and move child windows accordingly.
-
- @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)
+ Returns a pointer to the current validator for the window, or @NULL if
+ there is none.
+ */
+ virtual wxValidator* GetValidator();
- @remarks Note that you can often use wxScrolled instead of using this
- function directly.
+ /**
+ 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 ScrollWindow(int dx, int dy,
- const wxRect* rect = NULL);
+ virtual void SetValidator(const wxValidator& validator);
/**
- This function sends a dummy @ref wxSizeEvent "size event" to
- the window allowing it to re-layout its children positions.
+ Transfers values from child controls to data areas specified by their
+ validators. Returns @false if a transfer failed.
- 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 the window has @c wxWS_EX_VALIDATE_RECURSIVELY extra style flag set,
+ the method will also call TransferDataFromWindow() of all child windows.
- 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.
+ @see TransferDataToWindow(), wxValidator, Validate()
+ */
+ virtual bool TransferDataFromWindow();
+
+ /**
+ 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.
- @param flags
- May include @c wxSEND_EVENT_POST. Default value is 0.
+ @return Returns @false if a transfer failed.
+
+ @see TransferDataFromWindow(), wxValidator, Validate()
*/
- virtual void SendSizeEvent(int flags = 0);
+ virtual bool TransferDataToWindow();
/**
- Safe wrapper for GetParent()->SendSizeEvent().
+ 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.
- 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).
+ @return Returns @false if any of the validations failed.
- @see PostSizeEventToParent()
+ @see TransferDataFromWindow(), TransferDataToWindow(),
+ wxValidator
+ */
+ virtual bool Validate();
- @param flags
- See description of this parameter in SendSizeEvent() documentation.
- */
- void SendSizeEventToParent(int flags = 0);
+ //@}
- /**
- 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.
+ @name wxWindow properties functions
*/
- void SetAccessible(wxAccessible* accessible);
+ //@{
/**
- 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.
+ Returns the identifier of the window.
- @param autoLayout
- Set this to @true if you wish the Layout function to be
- called automatically when the window is resized.
+ @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 SetConstraints()
+ @see SetId(), @ref overview_windowids
*/
- void SetAutoLayout(bool autoLayout);
+ wxWindowID GetId() const;
/**
- 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.
-
- @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.
+ Generic way of getting a label from any window, for
+ identification purposes.
- @see GetBackgroundColour(), SetForegroundColour(),
- GetForegroundColour(), ClearBackground(),
- Refresh(), wxEraseEvent
+ @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 bool SetBackgroundColour(const wxColour& colour);
+ virtual wxString GetLabel() const;
/**
- Sets the background style of the window. see GetBackgroundStyle() for
- the description of the possible style values.
-
- @see SetBackgroundColour(), GetForegroundColour(),
- SetTransparent()
+ Returns the layout direction for this window,
+ Note that @c wxLayout_Default is returned if layout direction is not supported.
*/
- virtual bool SetBackgroundStyle(wxBackgroundStyle style);
+ virtual wxLayoutDirection GetLayoutDirection() const;
/**
- This method is only implemented by ports which have support for
- native TAB traversal (such as GTK+ 2.0).
+ Returns the window's name.
- 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().
+ @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 wxFocusEvent, wxPanel::SetFocus, wxPanel::SetFocusIgnoringChildren
+ @see SetName()
*/
- virtual void SetCanFocus(bool canFocus);
+ virtual wxString GetName() const;
/**
- Sets the caret() associated with the window.
+ Returns the value previously passed to SetWindowVariant().
*/
- void SetCaret(wxCaret* caret);
+ wxWindowVariant GetWindowVariant() const;
- //@{
/**
- This sets the size of the window client area in pixels.
+ Sets the identifier of the window.
- 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.
+ @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.
- @param width
- The required client area width.
- @param height
- The required client area height.
- @param size
- The required client size.
+ @see GetId(), @ref overview_windowids
*/
- virtual void SetClientSize(int width, int height);
- virtual void SetClientSize(const wxSize& size);
- //@}
+ void SetId(wxWindowID winid);
/**
- 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.
+ Sets the window's label.
- @param constraints
- The constraints to set. Pass @NULL to disassociate and delete the window's
- constraints.
+ @param label
+ The window label.
- @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 GetLabel()
*/
- void SetConstraints(wxLayoutConstraints* constraints);
+ virtual void SetLabel(const wxString& label);
/**
- 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.
+ Sets the layout direction for this window.
*/
- void SetContainingSizer(wxSizer* sizer);
+ virtual void SetLayoutDirection(wxLayoutDirection dir);
/**
- 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.
+ Sets the window's name.
- @param cursor
- Specifies the cursor that the window should normally display.
+ @param name
+ A name to set for the window.
- @see ::wxSetCursor, wxCursor
+ @see GetName()
*/
- virtual bool SetCursor(const wxCursor& cursor);
+ virtual void SetName(const wxString& name);
/**
- Associates a drop target with this window.
- If the window already has a drop target, it is deleted.
+ 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.
- @see GetDropTarget(), @ref overview_dnd
+ By default the controls use the normal size, of course, but this function can
+ be used to change this.
*/
- virtual void SetDropTarget(wxDropTarget* target);
+ void SetWindowVariant(wxWindowVariant variant);
/**
- Sets the event handler for this window.
-
- @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
+ Gets the accelerator table for this window. See wxAcceleratorTable.
*/
- void SetEventHandler(wxEvtHandler* handler);
+ wxAcceleratorTable* GetAcceleratorTable();
/**
- Sets the extra style bits for the window.
- The currently defined extra style bits are reported in the class
- description.
+ Returns the accessible object for this window, if any.
+ See also wxAccessible.
*/
- virtual void SetExtraStyle(long exStyle);
+ wxAccessible* GetAccessible();
/**
- This sets the window to receive keyboard input.
-
- @see HasFocus(), wxFocusEvent, wxPanel::SetFocus,
- wxPanel::SetFocusIgnoringChildren
+ Sets the accelerator table for this window. See wxAcceleratorTable.
*/
- virtual void SetFocus();
+ virtual void SetAcceleratorTable(const wxAcceleratorTable& accel);
/**
- 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.
+ 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.
*/
- virtual void SetFocusFromKbd();
-
- /**
- 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.
-
- 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().
+ void SetAccessible(wxAccessible* accessible);
- @param font
- Font to associate with this window, pass
- wxNullFont to reset to the default font.
+ //@}
- @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()
+ /**
+ @name Window deletion functions
*/
- virtual bool SetFont(const wxFont& font);
+ //@{
/**
- Sets the foreground colour of the window.
- Please see InheritAttributes() for explanation of the difference between
- this method and SetOwnForegroundColour().
+ This function simply generates a wxCloseEvent whose handler usually tries
+ to close the window. It doesn't close the window itself, however.
- @param colour
- The colour to be used as the foreground colour, pass
- wxNullColour to reset to the default colour.
+ @param force
+ @false if the window's close handler should be able to veto the destruction
+ of this window, @true if it cannot.
- @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.
+ @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 GetForegroundColour(), SetBackgroundColour(),
- GetBackgroundColour(), ShouldInheritColours()
+ @see @ref overview_windowdeletion "Window Deletion Overview",
+ Destroy(), wxCloseEvent
*/
- virtual bool SetForegroundColour(const wxColour& colour);
+ bool Close(bool force = false);
/**
- Sets 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.
+ 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.
- @see GetHelpText(), wxHelpProvider::AddHelp()
+ @return @true if the window has either been successfully deleted, or it
+ has been added to the list of windows pending real deletion.
*/
- void SetHelpText(const wxString& helpText);
+ virtual bool Destroy();
/**
- 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.
+ Returns true if this window is in process of being destroyed.
- @see GetId(), @ref overview_windowids
- */
- void SetId(wxWindowID winid);
+ 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.
- /**
- A @e smart SetSize that will fill in default size components with the
- window's @e best size values.
+ 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;
- 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
- */
- void SetInitialSize(const wxSize& size = wxDefaultSize);
/**
- Sets the window's label.
-
- @param label
- The window label.
-
- @see GetLabel()
+ @name Drag and drop functions
*/
- virtual void SetLabel(const wxString& label);
+ //@{
/**
- 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.
+ Returns the associated drop target, which may be @NULL.
- @see SetMaxSize()
+ @see SetDropTarget(), @ref overview_dnd
*/
- virtual void SetMaxClientSize(const wxSize& size);
+ virtual wxDropTarget* GetDropTarget() const;
/**
- Sets the maximum size of the window, to indicate to the sizer layout mechanism
- that this is the maximum possible size.
+ Associates a drop target with this window.
+ If the window already has a drop target, it is deleted.
- @see SetMaxClientSize()
+ @see GetDropTarget(), @ref overview_dnd
*/
- virtual void SetMaxSize(const wxSize& size);
+ virtual void SetDropTarget(wxDropTarget* target);
/**
- 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.
+ Enables or disables eligibility for drop file events (OnDropFiles).
- You may need to call this if you change the window size after
- construction and before adding to its parent sizer.
+ @param accept
+ If @true, the window is eligible for drop file events.
+ If @false, the window will not accept drop file events.
- Note, that just as with SetMinSize(), calling this method doesn't
- prevent the program from explicitly making the window smaller than the
- specified size.
+ @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 SetMinSize()
+ @see SetDropTarget()
*/
- virtual void SetMinClientSize(const wxSize& size);
-
- /**
- Sets the minimum size of the window, to indicate to the sizer layout
- mechanism that this is the minimum required size.
+ virtual void DragAcceptFiles(bool accept);
- 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 SetMinClientSize()
+ /**
+ @name Constraints, sizers and window layouting functions
*/
- virtual void SetMinSize(const wxSize& size);
+ //@{
/**
- Sets the window's name.
-
- @param name
- A name to set for the window.
-
- @see GetName()
+ Return the sizer that this window is a member of, if any, otherwise @NULL.
*/
- virtual void SetName(const wxString& name);
+ wxSizer* GetContainingSizer() const;
/**
- Sets the background colour of the window but prevents it from being inherited
- by the children of this window.
-
- @see SetBackgroundColour(), InheritAttributes()
+ Return the sizer associated with the window by a previous call to
+ SetSizer() or @NULL.
*/
- void SetOwnBackgroundColour(const wxColour& colour);
+ wxSizer* GetSizer() const;
/**
- Sets the font of the window but prevents it from being inherited by the
- children of this window.
+ 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.
- @see SetFont(), InheritAttributes()
- */
- void SetOwnFont(const wxFont& font);
+ Note that this function will also call SetAutoLayout() implicitly with @true
+ parameter if the @a sizer is non-@NULL and @false otherwise.
- /**
- Sets the foreground colour of the window but prevents it from being inherited
- by the children of this window.
+ @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.
- @see SetForegroundColour(), InheritAttributes()
+ @remarks SetSizer enables and disables Layout automatically.
*/
- void SetOwnForegroundColour(const wxColour& colour);
+ void SetSizer(wxSizer* sizer, bool deleteOld = true);
/**
- @deprecated use wxDC::SetPalette instead.
+ 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 SetPalette(const wxPalette& pal);
+ void SetSizerAndFit(wxSizer* sizer, bool deleteOld = true);
/**
- Sets the position of one of the built-in scrollbars.
-
- @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.
-
- @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
+ Returns a pointer to the window's layout constraints, or @NULL if there are none.
*/
- virtual void SetScrollPos(int orientation, int pos,
- bool refresh = true);
+ wxLayoutConstraints* GetConstraints() const;
/**
- Sets the scrollbar properties of a built-in scrollbar.
-
- @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.
+ 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.
- @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.
+ @param constraints
+ The constraints to set. Pass @NULL to disassociate and delete the window's
+ constraints.
- @see @ref overview_scrolling, wxScrollBar, wxScrolled, wxScrollWinEvent
+ @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.
*/
- virtual void SetScrollbar(int orientation, int position,
- int thumbSize, int range,
- bool refresh = true);
+ void SetConstraints(wxLayoutConstraints* constraints);
- /**
- 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).
+ /**
+ Invokes the constraint-based layout algorithm or the sizer-based algorithm
+ for this window.
- @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.
+ 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 Move()
+ @see @ref overview_windowsizing
*/
- void SetSize(int x, int y, int width, int height,
- int sizeFlags = wxSIZE_AUTO);
+ virtual bool Layout();
- //@{
/**
- Sets the size of the window in pixels.
- The size is specified using a wxRect, wxSize or by a couple of @c int objects.
+ 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).
- @remarks This form must be used with non-default width and height values.
+ 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 Move()
+ @see SetConstraints()
*/
- virtual void SetSize(const wxRect& rect);
- virtual void SetSize(const wxSize& size);
- virtual void SetSize(int width, int height);
+ void SetAutoLayout(bool autoLayout);
+
//@}
+
+
/**
- 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.
+ @name Mouse functions
+ */
+ //@{
- Note that this function will also call SetAutoLayout() implicitly with @true
- parameter if the @a sizer is non-@NULL and @false otherwise.
+ /**
+ Directs all mouse input to this window.
+ Call ReleaseMouse() to release the capture.
- @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.
+ 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.
- @remarks SetSizer enables and disables Layout automatically.
+ 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 SetSizer(wxSizer* sizer, bool deleteOld = true);
+ void CaptureMouse();
/**
- 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 caret() associated with the window.
*/
- void SetSizerAndFit(wxSizer* sizer, bool deleteOld = true);
+ wxCaret* GetCaret() 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.
+ Return the cursor associated with this 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.
+ @see SetCursor()
*/
- virtual void SetThemeEnabled(bool enable);
+ const wxCursor& GetCursor() const;
- //@{
/**
- Attach a tooltip to the window.
+ Returns @true if this window has the current mouse capture.
- 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.
+ @see CaptureMouse(), ReleaseMouse(), wxMouseCaptureLostEvent,
+ wxMouseCaptureChangedEvent
+ */
+ virtual bool HasCapture() const;
- 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.
+ /**
+ Releases mouse input captured with CaptureMouse().
- @see GetToolTip(), wxToolTip
+ @see CaptureMouse(), HasCapture(), ReleaseMouse(),
+ wxMouseCaptureLostEvent, wxMouseCaptureChangedEvent
*/
- void SetToolTip(const wxString& tip);
- void SetToolTip(wxToolTip* tip);
- //@}
+ void ReleaseMouse();
/**
- 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().
-
- 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.
+ Sets the caret() associated with the window.
*/
- virtual bool SetTransparent(wxByte alpha);
+ void SetCaret(wxCaret* caret);
/**
- Deletes the current validator (if any) and sets the window validator, having
- called wxValidator::Clone to create a new validator of this type.
+ 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 void SetValidator(const wxValidator& validator);
+ virtual bool SetCursor(const wxCursor& cursor);
- //@{
/**
- Sets the virtual size of the window in pixels.
+ 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.
*/
- void SetVirtualSize(int width, int height);
- void SetVirtualSize(const wxSize& size);
+ virtual void WarpPointer(int x, int y);
+
//@}
+
+
+
/**
- Identical to SetWindowStyleFlag().
+ @name Miscellaneous functions
*/
- 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.
+ 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:
- See @ref overview_windowstyles "Window styles" for more information about flags.
+ @code
+ // do the window-specific processing after processing the update event
+ void wxTopLevelWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
+ {
+ if ( event.GetSetEnabled() )
+ Enable(event.GetEnabled());
- @see GetWindowStyleFlag()
+ if ( event.GetSetText() )
+ {
+ if ( event.GetText() != GetTitle() )
+ SetTitle(event.GetText());
+ }
+ }
+ @endcode
*/
- virtual void SetWindowStyleFlag(long style);
+ virtual void DoUpdateWindowUI(wxUpdateUIEvent& event);
/**
- 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.
+ 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.
*/
- void SetWindowVariant(wxWindowVariant variant);
+ virtual WXWidget GetHandle() const;
/**
- 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.
-
- The base class version returns @false, but this method is overridden in
- wxControl where it returns @true.
+ 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 ShouldInheritColours() const;
+ virtual bool HasMultiplePages() const;
/**
- 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.
+ 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.
- @param show
- If @true displays the window. Otherwise, hides it.
+ 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.
- @return @true if the window has been shown or hidden or @false if nothing
- was done because it already was in the requested state.
+ 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();
- @see IsShown(), Hide(), wxRadioBox::Show, wxShowEvent.
+ /**
+ Sends an @c wxEVT_INIT_DIALOG event, whose handler usually transfers data
+ to the dialog via validators.
*/
- virtual bool Show(bool show = true);
+ virtual void InitDialog();
/**
- This function shows a window, like Show(), but using a special visual
- effect if possible.
+ 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.
- @param effect
- The effect to use.
+ @see wxBufferedDC
+ */
+ virtual bool IsDoubleBuffered() const;
- @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.
+ /**
+ Returns @true if the window is retained, @false otherwise.
- @note Currently this function is only implemented in wxMSW and does the
- same thing as Show() in the other ports.
+ @remarks Retained windows are only available on X platforms.
+ */
+ virtual bool IsRetained() const;
- @since 2.9.0
+ /**
+ 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;
- @see HideWithEffect()
+ /**
+ 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 ShowWithEffect(wxShowEffect effect,
- unsigned int timeout = 0);
+ virtual bool IsTopLevel() const;
/**
- 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().
-
- If the window has any children, they are recursively thawn too.
+ Disables all other windows in the application so that
+ the user can only interact with this window.
- @see wxWindowUpdateLocker, Freeze(), IsFrozen()
+ @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.
*/
- void Thaw();
+ virtual void MakeModal(bool modal = true);
/**
- 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.
-
- @return Returns @true if the style was turned on by this function, @false
- if it was switched off.
+ 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.
- @see SetWindowStyleFlag(), HasFlag()
+ 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.
*/
- bool ToggleWindowStyle(int flag);
+ virtual void OnInternalIdle();
/**
- Transfers values from child controls to data areas specified by their
- validators. Returns @false if a transfer failed.
-
- If the window has @c wxWS_EX_VALIDATE_RECURSIVELY extra style flag set,
- the method will also call TransferDataFromWindow() of all child windows.
+ Registers a system wide hotkey. Every time the user presses the hotkey
+ registered here, this window will receive a hotkey event.
- @see TransferDataToWindow(), wxValidator, Validate()
- */
- virtual bool TransferDataFromWindow();
+ 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.
- /**
- Transfers values to child controls from data areas specified by their
- validators.
+ @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.
- If the window has @c wxWS_EX_VALIDATE_RECURSIVELY extra style flag set,
- the method will also call TransferDataToWindow() of all child windows.
+ @return @true if the hotkey was registered successfully. @false if some
+ other application already registered a hotkey with this
+ modifier/virtualKeyCode combination.
- @return Returns @false if a transfer failed.
+ @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 TransferDataFromWindow(), wxValidator, Validate()
+ @see UnregisterHotKey()
*/
- virtual bool TransferDataToWindow();
+ virtual bool RegisterHotKey(int hotkeyId, int modifiers,
+ int virtualKeyCode);
/**
Unregisters a system wide hotkey.
@see RegisterHotKey()
*/
- bool UnregisterHotKey(int hotkeyId);
-
- /**
- Unreserve an ID or range of IDs that was reserved by NewControlId().
- See @ref overview_windowids for more information.
-
- @param id
- The starting ID of the range of IDs to unreserve.
- @param count
- The number of sequential IDs to unreserve.
-
- @see NewControlId(), wxIdManager, @ref overview_windowids
- */
- 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();
+ virtual bool UnregisterHotKey(int hotkeyId);
/**
This function sends one or more wxUpdateUIEvent to the window.
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.
+ @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
*/
virtual void UpdateWindowUI(long flags = wxUPDATE_UI_NONE);
+ //@}
+
+
+ // NOTE: static functions must have their own group or Doxygen will screw
+ // up the ordering of the member groups
+
/**
- 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.
+ @name Miscellaneous static functions
+ */
+ //@{
- @return Returns @false if any of the validations failed.
+ /**
+ Returns the default font and colours which are used by the control.
- @see TransferDataFromWindow(), TransferDataToWindow(),
- wxValidator
+ 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.
+
+ 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.
+
+ 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().
+
+ 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 InheritAttributes()
*/
- virtual bool Validate();
+ static wxVisualAttributes GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
/**
- Moves the pointer to the given position on the window.
+ Finds the window or control which currently has the keyboard focus.
- @note This function is not supported under Mac because Apple Human
- Interface Guidelines forbid moving the mouse cursor programmatically.
+ @remarks Note that this is a static function, so it can be called without
+ needing a wxWindow pointer.
- @param x
- The new x position for the cursor.
- @param y
- The new y position for the cursor.
+ @see SetFocus(), HasFocus()
*/
- virtual void WarpPointer(int x, int y);
+ static wxWindow* FindFocus();
+
+ /**
+ Find the first window with the given @e id.
+
+ 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* FindWindowById(long id, const wxWindow* parent = 0);
+
+ /**
+ 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,
+ const wxWindow* parent = 0);
+
+ /**
+ Find a window by its name (as given in a window constructor or 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,
+ const wxWindow* parent = 0);
+
+ /**
+ Returns the currently captured window.
+
+ @see HasCapture(), CaptureMouse(), ReleaseMouse(),
+ wxMouseCaptureLostEvent, wxMouseCaptureChangedEvent
+ */
+ static wxWindow* GetCapture();
+
+ /**
+ 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.
+
+ @param count
+ The number of sequential IDs to reserve.
+
+ @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);
+
+ /**
+ Unreserve an ID or range of IDs that was reserved by NewControlId().
+ See @ref overview_windowids for more information.
+
+ @param id
+ The starting ID of the range of IDs to unreserve.
+ @param count
+ The number of sequential IDs to unreserve.
+
+ @see NewControlId(), wxIdManager, @ref overview_windowids
+ */
+ static void UnreserveControlId(wxWindowID id, int count = 1);
+
+ //@}
+
protected:
@deprecated @todo provide deprecation description
*/
virtual void SetInitialBestSize(const wxSize& size);
+
+ /**
+ Generate wxWindowDestroyEvent for this window.
+
+ 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();
+
+ /**
+ 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.
+
+ For convenience, a ProcessWindowEvent() method is provided as a synonym
+ for @code GetEventHandler()->ProcessEvent() @endcode.
+
+ 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 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