// Name: button.h
// Purpose: interface of wxButton
// Author: wxWidgets team
-// RCS-ID: $Id$
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+
/**
@class wxButton
It may be placed on a @ref wxDialog "dialog box" or on a @ref wxPanel panel,
or indeed on almost any other window.
- @beginStyleTable
- @style{wxBU_LEFT}
- Left-justifies the label. Windows and GTK+ only.
- @style{wxBU_TOP}
- Aligns the label to the top of the button. Windows and GTK+ only.
- @style{wxBU_RIGHT}
- Right-justifies the bitmap label. Windows and GTK+ only.
- @style{wxBU_BOTTOM}
- Aligns the label to the bottom of the button. Windows and GTK+ only.
- @style{wxBU_EXACTFIT}
- Creates the button as small as possible instead of making it of the
- standard size (which is the default behaviour ).
- @style{wxBU_NOTEXT}
- Disables the display of the text label in the button even if it has one
- or its id is one of the standard stock ids with an associated label:
- without using this style a button which is only supposed to show a
- bitmap but uses a standard id would display a label too.
- @style{wxBORDER_NONE}
- Creates a button without border. This is currently implemented in MSW,
- GTK2 and OSX/Carbon ports but in the latter only applies to buttons
- with bitmaps and using bitmap of one of the standard sizes only, namely
- 128*128, 48*48, 24*24 or 16*16. In all the other cases wxBORDER_NONE is
- ignored under OSX.
- @endStyleTable
-
By default, i.e. if none of the alignment styles are specified, the label
is centered both horizontally and vertically. If the button has both a
label and a bitmap, the alignment styles above specify the location of the
bitmap with respect to the label (however currently non-default alignment
combinations are not implemented on all platforms).
- @beginEventEmissionTable{wxCommandEvent}
- @event{EVT_BUTTON(id, func)}
- Process a wxEVT_COMMAND_BUTTON_CLICKED event, when the button is clicked.
- @endEventTable
-
-
Since version 2.9.1 wxButton supports showing both text and an image
(currently only when using wxMSW, wxGTK or wxOSX/Cocoa ports), see
SetBitmap() and SetBitmapLabel(), SetBitmapDisabled() &c methods. In the
get reasonably good behaviour on all platforms.
All of the bitmaps must be of the same size and the normal bitmap must be
- set first (to a valid bitmap), before setting any other ones.
+ set first (to a valid bitmap), before setting any other ones. Also, if the
+ size of the bitmaps is changed later, you need to change the size of the
+ normal bitmap before setting any other bitmaps with the new size (and you
+ do need to reset all of them as their original values can be lost when the
+ normal bitmap size changes).
The position of the image inside the button be configured using
SetBitmapPosition(). By default the image is on the left of the text.
+ Please also notice that GTK+ uses a global setting called @c gtk-button-images
+ to determine if the images should be shown in the buttons
+ at all. If it is off (which is the case in e.g. Gnome 2.28 by default), no
+ images will be shown, consistently with the native behaviour.
+
+ @beginStyleTable
+ @style{wxBU_LEFT}
+ Left-justifies the label. Windows and GTK+ only.
+ @style{wxBU_TOP}
+ Aligns the label to the top of the button. Windows and GTK+ only.
+ @style{wxBU_RIGHT}
+ Right-justifies the bitmap label. Windows and GTK+ only.
+ @style{wxBU_BOTTOM}
+ Aligns the label to the bottom of the button. Windows and GTK+ only.
+ @style{wxBU_EXACTFIT}
+ By default, all buttons are made of at least the standard button size,
+ even if their contents is small enough to fit into a smaller size. This
+ is done for consistency as most platforms use buttons of the same size
+ in the native dialogs, but can be overridden by specifying this flag.
+ If it is given, the button will be made just big enough for its
+ contents. Notice that under MSW the button will still have at least the
+ standard height, even with this style, if it has a non-empty label.
+ @style{wxBU_NOTEXT}
+ Disables the display of the text label in the button even if it has one
+ or its id is one of the standard stock ids with an associated label:
+ without using this style a button which is only supposed to show a
+ bitmap but uses a standard id would display a label too.
+ @style{wxBORDER_NONE}
+ Creates a button without border. This is currently implemented in MSW,
+ GTK2 and OSX/Cocoa and OSX/Carbon ports but in the latter only applies
+ to buttons with bitmaps and using bitmap of one of the standard sizes
+ only, namely 128*128, 48*48, 24*24 or 16*16. In all the other cases
+ wxBORDER_NONE is ignored under OSX/Carbon (these restrictions don't
+ exist in OSX/Cocoa however).
+ @endStyleTable
+
+ @beginEventEmissionTable{wxCommandEvent}
+ @event{EVT_BUTTON(id, func)}
+ Process a @c wxEVT_BUTTON event, when the button is clicked.
+ @endEventTable
+
@library{wxcore}
@category{ctrl}
- @appearance{button.png}
+ @appearance{button}
@see wxBitmapButton
*/
-class wxButton : public wxControl
+class wxButton : public wxAnyButton
{
public:
/**
The preferred way to create standard buttons is to use default value of
@a label. If no label is supplied and @a id is one of standard IDs from
- @ref page_stockitems "this list", a standard label will be used.
+ @ref page_stockitems "this list", a standard label will be used. In
+ other words, if you use a predefined @c wxID_XXX constant, just omit
+ the label completely rather than specifying it. In particular, help
+ buttons (the ones with @a id of @c wxID_HELP) under Mac OS X can't
+ display any label at all and while wxButton will detect if the standard
+ "Help" label is used and ignore it, using any other label will prevent
+ the button from correctly appearing as a help button and so should be
+ avoided.
+
In addition to that, the button will be decorated with stock icons under GTK+ 2.
@param parent
Parent window. Must not be @NULL.
@param id
- Button identifier. A value of wxID_ANY indicates a default value.
+ Button identifier. A value of @c wxID_ANY indicates a default value.
@param label
Text to be displayed on the button.
@param pos
*/
bool GetAuthNeeded() const;
- /**
- Return the bitmap shown by the button.
-
- The returned bitmap may be invalid only if the button doesn't show any
- images.
-
- @see SetBitmap()
-
- @since 2.9.1
- */
- wxBitmap GetBitmap() const;
-
- /**
- Returns the bitmap used when the mouse is over the button, which may be
- invalid.
-
- @see SetBitmapCurrent()
-
- @since 2.9.1 (available as wxBitmapButton::GetBitmapHover() in previous
- versions)
- */
- wxBitmap GetBitmapCurrent() const;
-
- /**
- Returns the bitmap for the disabled state, which may be invalid.
-
- @see SetBitmapDisabled()
-
- @since 2.9.1 (available in wxBitmapButton only in previous versions)
- */
- wxBitmap GetBitmapDisabled() const;
-
- /**
- Returns the bitmap for the focused state, which may be invalid.
-
- @see SetBitmapFocus()
-
- @since 2.9.1 (available in wxBitmapButton only in previous versions)
- */
- wxBitmap GetBitmapFocus() const;
-
- /**
- Returns the bitmap for the normal state.
-
- This is exactly the same as GetBitmap() but uses a name
- backwards-compatible with wxBitmapButton.
-
- @see SetBitmap(), SetBitmapLabel()
-
- @since 2.9.1 (available in wxBitmapButton only in previous versions)
- */
- wxBitmap GetBitmapLabel() const;
-
- /**
- Returns the bitmap for the pressed state, which may be invalid.
-
- @see SetBitmapPressed()
-
- @since 2.9.1 (available as wxBitmapButton::GetBitmapSelected() in
- previous versions)
- */
- wxBitmap GetBitmapPressed() const;
/**
Returns the default size for the buttons. It is advised to make all the dialog
*/
void SetAuthNeeded(bool needed = true);
- /**
- Sets the bitmap to display in the button.
-
- The bitmap is displayed together with the button label. This method
- sets up a single bitmap which is used in all button states, use
- SetBitmapDisabled(), SetBitmapPressed(), SetBitmapCurrent() or
- SetBitmapFocus() to change the individual images used in different
- states.
-
- @param bitmap
- The bitmap to display in the button. May be invalid to remove any
- currently displayed bitmap.
- @param dir
- The position of the bitmap inside the button. By default it is
- positioned to the left of the text, near to the left button border.
- Other possible values include wxRIGHT, wxTOP and wxBOTTOM.
-
- @see SetBitmapPosition(), SetBitmapMargins()
-
- @since 2.9.1
- */
- void SetBitmap(const wxBitmap& bitmap, wxDirection dir = wxLEFT);
-
- /**
- Sets the bitmap to be shown when the mouse is over the button.
-
- @see GetBitmapCurrent()
-
- @since 2.9.1 (available as wxBitmapButton::SetBitmapHover() in previous
- versions)
- */
- void SetBitmapCurrent(const wxBitmap& bitmap);
-
- /**
- Sets the bitmap for the disabled button appearance.
-
- @see GetBitmapDisabled(), SetBitmapLabel(),
- SetBitmapPressed(), SetBitmapFocus()
-
- @since 2.9.1 (available in wxBitmapButton only in previous versions)
- */
- void SetBitmapDisabled(const wxBitmap& bitmap);
-
- /**
- Sets the bitmap for the button appearance when it has the keyboard
- focus.
-
- @see GetBitmapFocus(), SetBitmapLabel(),
- SetBitmapPressed(), SetBitmapDisabled()
-
- @since 2.9.1 (available in wxBitmapButton only in previous versions)
- */
- void SetBitmapFocus(const wxBitmap& bitmap);
-
- /**
- Sets the bitmap label for the button.
-
- @remarks This is the bitmap used for the unselected state, and for all
- other states if no other bitmaps are provided.
-
- @see SetBitmap(), GetBitmapLabel()
-
- @since 2.9.1 (available in wxBitmapButton only in previous versions)
- */
- void SetBitmapLabel(const wxBitmap& bitmap);
-
- /**
- Sets the bitmap for the selected (depressed) button appearance.
-
- @since 2.9.1 (available as wxBitmapButton::SetBitmapSelected() in
- previous versions)
- */
- void SetBitmapPressed(const wxBitmap& bitmap);
-
- /**
- Set the margins between the bitmap and the text of the button.
-
- This method is currently only implemented under MSW. If it is not
- called, default margin is used around the bitmap.
-
- @see SetBitmap(), SetBitmapPosition()
-
- @since 2.9.1
- */
- //@{
- void SetBitmapMargins(wxCoord x, wxCoord y);
- void SetBitmapMargins(const wxSize& sz);
- //@}
-
- /**
- Set the position at which the bitmap is displayed.
-
- This method should only be called if the button does have an associated
- bitmap.
-
- @since 2.9.1
-
- @param dir
- Direction in which the bitmap should be positioned, one of wxLEFT,
- wxRIGHT, wxTOP or wxBOTTOM.
- */
- void SetBitmapPosition(wxDirection dir);
/**
This sets the button to be the default item in its top-level window
@remarks Under Windows, only dialog box buttons respond to this function.
- @return the old default item (possibly NULL)
+ @return the old default item (possibly @NULL)
*/
virtual wxWindow* SetDefault();
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