*/
enum wxShowEffect
{
+ /**
+ No effect, equivalent to normal wxWindow::Show() or Hide() call.
+
+ @since 2.9.1
+ */
+ wxSHOW_EFFECT_NONE,
+
/// Roll window to the left
wxSHOW_EFFECT_ROLL_TO_LEFT,
@class wxWindow
wxWindow is the base class for all windows and represents any visible object
- om screen. All controls, top level windows and so on are windows. Sizers and
+ on screen. All controls, top level windows and so on are windows. Sizers and
device contexts are not, however, as they don't appear on screen themselves.
Please note that all children of the window will be deleted automatically by
@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
- risk of creating a dialog/frame with this window as a parent which
- would lead to a crash if the parent is destroyed before the child.
+ risk of creating a dialog/frame with this window as a parent, which
+ would lead to a crash if the parent were destroyed before the child.
@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
virtual bool AcceptsFocusFromKeyboard() const;
/**
- Overridden to indicate wehter this window or one of its children accepts
+ Overridden to indicate whether this window or one of its children accepts
focus. Usually it's the same as AcceptsFocus() but is overridden for
container windows.
*/
wxWindow* GetGrandParent() const;
/**
- Returns the next window after this one among the parent children or @NULL
+ Returns the next window after this one among the parent's children or @NULL
if this window is the last child.
@since 2.8.8
wxWindow* GetParent() const;
/**
- Returns the previous window before this one among the parent children or @c
+ Returns the previous window before this one among the parent's children or @c
@NULL if this window is the first child.
@since 2.8.8
virtual int GetScrollThumb(int orientation) const;
/**
- Returns @true if this window has a scroll bar for this orientation.
+ Returns @true if this window can have a scroll bar in this orientation.
+
+ @param orient
+ Orientation to check, either wxHORIZONTAL or wxVERTICAL.
+
+ @since 2.9.1
+ */
+ bool CanScroll(int orient) const;
+
+ /**
+ Returns @true if this window currently has a scroll bar for this
+ orientation.
+
+ This method may return @false even when CanScroll() for the same
+ orientation returns @true, but if CanScroll() returns @false, i.e.
+ scrolling in this direction is not enabled at all, HasScrollbar()
+ always returns @false as well.
@param orient
Orientation to check, either wxHORIZONTAL or wxVERTICAL.
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).
+ @beginWxPerlOnly
+ In wxPerl this method takes no parameters and returns
+ a 2-element list (width, height).
+ @endWxPerlOnly
+
@see GetSize(), GetVirtualSize()
*/
void GetClientSize(int* width, int* height) 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.
+ amount 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.
+ This is the method called by a wxSizer when it queries the size
+ of a window or control.
@see GetBestSize(), SetInitialSize(), @ref overview_windowsizing
*/
@param height
Receives the window height.
+ @beginWxPerlOnly
+ In wxPerl this method is implemented as GetSizeWH() returning
+ a 2-element list (width, height).
+ @endWxPerlOnly
+
@see GetClientSize(), GetVirtualSize(), @ref overview_windowsizing
*/
void GetSize(int* width, int* height) const;
Centres the window.
@param direction
- Specifies the direction for the centering. May be wxHORIZONTAL, wxVERTICAL
+ Specifies the direction for the centring. 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
+ if you want to centre 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.
+ it will be centred relative to the screen anyhow.
@see Center()
*/
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
+ Specifies the direction for the centring. May be wxHORIZONTAL, wxVERTICAL
or wxBOTH.
- @remarks This methods provides for a way to center top level windows over
+ @remarks This methods provides for a way to centre 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().
@param y
Receives the y position of the window if non-@NULL.
+ @beginWxPerlOnly
+ In wxPerl this method is implemented as GetPositionXY() returning
+ a 2-element list (x, y).
+ @endWxPerlOnly
+
@see GetScreenPosition()
*/
void GetPosition(int* x, int* y) const;
- ClientToScreen(point): Accepts and returns a wxPoint
- ClientToScreenXY(x, y): Returns a 2-tuple, (x, y)
@endWxPythonOnly
+
+ @beginWxPerlOnly
+ In wxPerl this method returns a 2-element list instead of
+ modifying its parameters.
+ @endWxPerlOnly
*/
void ClientToScreen(int* x, int* y) const;
@see ConvertPixelsToDialog()
*/
- wxPoint ConvertDialogToPixels(const wxPoint& pt);
+ wxPoint ConvertDialogToPixels(const wxPoint& pt) const;
/**
@overload
*/
- wxSize ConvertDialogToPixels(const wxSize& sz);
+ wxSize ConvertDialogToPixels(const wxSize& sz) const;
/**
Converts a point or size from pixels to dialog units.
@see ConvertDialogToPixels()
*/
- wxPoint ConvertPixelsToDialog(const wxPoint& pt);
+ wxPoint ConvertPixelsToDialog(const wxPoint& pt) const;
/**
@overload
*/
- wxSize ConvertPixelsToDialog(const wxSize& sz);
+ wxSize ConvertPixelsToDialog(const wxSize& sz) const;
/**
Converts from screen to client window coordinates.
void Freeze();
/**
- Reenables window updating after a previous call to Freeze().
+ Re-enables 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.
+ If the window has any children, they are recursively thawed too.
@see wxWindowUpdateLocker, Freeze(), IsFrozen()
*/
/**
Returns the background style of the window.
- The background style can be one of the wxBackgroundStyle.
@see SetBackgroundColour(), GetForegroundColour(),
SetBackgroundStyle(), SetTransparent()
*/
virtual wxBackgroundStyle GetBackgroundStyle() const;
+
/**
Returns the character height for this window.
*/
/**
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.
+ @remarks The meaning of foreground colour varies according to the window class;
+ it may be the text colour or other colour, or it may not be used at all.
@see SetForegroundColour(), SetBackgroundColour(),
GetBackgroundColour()
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.
+ The text extent is returned in the @a w and @a h pointers.
@param string
String whose extent is to be measured.
Return value for external leading (optional).
@param font
Font to use instead of the current window font (optional).
+
+ @beginWxPerlOnly
+ In wxPerl this method takes only the @a string and optionally
+ @a font parameters, and returns a 4-element list
+ (x, y, descent, externalLeading).
+ @endWxPerlOnly
*/
- virtual void GetTextExtent(const wxString& string, int* w, int* h,
- int* descent = NULL,
- int* externalLeading = NULL,
- const wxFont* font = NULL) const;
+ void GetTextExtent(const wxString& string,
+ int* w, int* h,
+ int* descent = NULL,
+ int* externalLeading = NULL,
+ const wxFont* font = NULL) const;
/**
Gets the dimensions of the string as it would be drawn on the
/**
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.
+ all of its children recursively (this normally only happens 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
this method and SetOwnBackgroundColour().
@param colour
- The colour to be used as the background colour, pass
+ 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
usually the themes represent the appearance chosen by the user
to be used for all applications on the system.
+ @return @true if the colour was really changed, @false if it was already set
+ to this colour and nothing was done.
+
@see GetBackgroundColour(), SetForegroundColour(),
GetForegroundColour(), ClearBackground(),
Refresh(), wxEraseEvent
virtual bool SetBackgroundColour(const wxColour& colour);
/**
- Sets the background style of the window. see GetBackgroundStyle() for
- the description of the possible style values.
+ Sets the background style of the window.
+
+ The default background style is wxBG_STYLE_ERASE which indicates that
+ the window background may be erased in EVT_ERASE_BACKGROUND handler.
+ This is a safe, compatibility default; however you may want to change it
+ to wxBG_STYLE_SYSTEM if you don't define any erase background event
+ handlers at all, to avoid unnecessary generation of erase background
+ events and always let system erase the background. And you should
+ change the background style to wxBG_STYLE_PAINT if you define an
+ EVT_PAINT handler which completely overwrites the window background as
+ in this case erasing it previously, either in EVT_ERASE_BACKGROUND
+ handler or in the system default handler, would result in flicker as
+ the background pixels will be repainted twice every time the window is
+ redrawn. Do ensure that the background is entirely erased by your
+ EVT_PAINT handler in this case however as otherwise garbage may be left
+ on screen.
+
+ Notice that in previous versions of wxWidgets a common way to work
+ around the above mentioned flickering problem was to define an empty
+ EVT_ERASE_BACKGROUND handler. Setting background style to
+ wxBG_STYLE_PAINT is a simpler and more efficient solution to the same
+ problem.
@see SetBackgroundColour(), GetForegroundColour(),
SetTransparent()
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.
+ @return @true if the font was really changed, @false if it was already set
+ to this font and nothing was done.
@see GetFont(), InheritAttributes()
*/
this method and SetOwnForegroundColour().
@param colour
- The colour to be used as the foreground colour, pass
+ The colour to be used as the foreground colour; pass
wxNullColour to reset to the default colour.
- @remarks The interpretation of foreground colour is open to
- interpretation according to the window class; it may be
- the text colour or other colour, or it may not be used at all.
+ @remarks The meaning of foreground colour varies according to the window class;
+ it may be the text colour or other colour, or it may not be used at all.
+
+ @return @true if the colour was really changed, @false if it was already set
+ to this colour and nothing was done.
@see GetForegroundColour(), SetBackgroundColour(),
GetBackgroundColour(), ShouldInheritColours()
/**
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.
+ 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 function tells a window if it should use the system's "theme" code
- to draw the windows' background instead if its own background drawing
+ to draw the windows' background instead of 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
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.
+ associated with the window; use this function instead.
*/
bool ProcessWindowEvent(wxEvent& event);
milliseconds. If the default value of 0 is used, the default
animation time for the current platform is used.
- @note Currently this function is only implemented in wxMSW and does the
- same thing as Show() in the other ports.
+ @note Currently this function is only implemented in wxMSW and wxOSX
+ (for wxTopLevelWindows only in Carbon version and for any kind of
+ windows in Cocoa) and does the same thing as Show() in the other
+ ports.
@since 2.9.0
*/
wxToolTip* GetToolTip() const;
+ /**
+ Get the text of the associated tooltip or empty string if none.
+ */
+ wxString GetToolTipText() const;
+
/**
Attach a tooltip to the window.
wxToolTip pointer can be @NULL in the overload taking the pointer,
- meaning to unset any existing tooltips, however UnsetToolTip() provides
+ meaning to unset any existing tooltips; however UnsetToolTip() provides
a more readable alternative to this operation.
Notice that these methods are always available, even if wxWidgets was
window, and returns control when the user has dismissed the menu.
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
+ processed as usual. If coordinates are not specified, the current mouse
cursor position is used.
@a menu is the menu to pop up.
Returns the identifier of the window.
@remarks Each window has an integer identifier. If the application
- has not provided one (or the default wxID_ANY) an unique
+ has not provided one (or the default wxID_ANY) a unique
identifier with a negative value will be generated.
@see SetId(), @ref overview_windowids
/**
Returns true if this window is in process of being destroyed.
- The top level windows are not deleted immediately but are rather
+ 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.
+ pending messages; see Destroy() description.
This function returns @true if this window, or one of its parent
windows, is scheduled for destruction and can be useful to avoid
//@{
/**
- Return the sizer that this window is a member of, if any, otherwise @NULL.
+ Returns the sizer of which this window is a member, if any, otherwise @NULL.
*/
wxSizer* GetContainingSizer() const;
/**
- Return the sizer associated with the window by a previous call to
- SetSizer() or @NULL.
+ Returns the sizer associated with the window by a previous call to
+ SetSizer(), or @NULL.
*/
wxSizer* GetSizer() const;
/**
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.
+ @note Apple Human Interface Guidelines forbid moving the mouse cursor
+ programmatically so you should avoid using this function in Mac
+ applications (and probably avoid using it under the other
+ platforms without good reason as well).
@param x
The new x position for the cursor.
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.
+
+ @beginWxPerlOnly
+ This method will return an integer in wxPerl.
+ @endWxPerlOnly
*/
virtual WXWidget GetHandle() const;
This method should be overridden to return @true if this window has
multiple pages. All standard class with multiple pages such as
wxNotebook, wxListbook and wxTreebook already override it to return @true
- and user-defined classes with similar behaviour should do it as well to
+ and user-defined classes with similar behaviour should also do so, to
allow the library to handle such windows appropriately.
*/
virtual bool HasMultiplePages() const;
@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.
+ @return Returns the ID or the first ID of the range (i.e. the most negative),
+ or wxID_NONE if the specified number of identifiers couldn't be allocated.
@see UnreserveControlId(), wxIdManager,
@ref overview_windowids
itself.
For convenience, a ProcessWindowEvent() method is provided as a synonym
- for @code GetEventHandler()->ProcessEvent() @endcode.
+ 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
projects / wxWidgets.git / blobdiff