X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7e59b88579c7a1e8b4da0827be75dc5d2a84ec73..d3fa4bc22e84e3ca4d88cc1772f2d414140a1017:/interface/wx/button.h?ds=sidebyside diff --git a/interface/wx/button.h b/interface/wx/button.h index 127938c17f..7c91ca1dc3 100644 --- a/interface/wx/button.h +++ b/interface/wx/button.h @@ -3,9 +3,10 @@ // Purpose: interface of wxButton // Author: wxWidgets team // RCS-ID: $Id$ -// Licence: wxWindows license +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// + /** @class wxButton @@ -15,34 +16,95 @@ It may be placed on a @ref wxDialog "dialog box" or on a @ref wxPanel panel, or indeed on almost any other window. + 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 + rectangle combining both the label and the bitmap and the bitmap position + set with wxButton::SetBitmapPosition() defines the relative position of the + bitmap with respect to the label (however currently non-default alignment + combinations are not implemented on all platforms). + + 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 + previous wxWidgets versions this functionality was only available in (the + now trivial) wxBitmapButton class which was only capable of showing an + image without text. + + A button may have either a single image for all states or different images + for the following states (different images are not currently supported + under OS X where the normal image is used for all states): + @li @b normal: the default state + @li @b disabled: bitmap shown when the button is disabled. + @li @b pressed: bitmap shown when the button is pushed (e.g. while the user + keeps the mouse button pressed on it) + @li @b focus: bitmap shown when the button has keyboard focus (but is not + pressed as in this case the button is in the pressed state) + @li @b current: bitmap shown when the mouse is over the button (but it is + not pressed although it may have focus). Notice that if current bitmap + is not specified but the current platform UI uses hover images for the + buttons (such as Windows XP or GTK+), then the focus bitmap is used for + hover state as well. This makes it possible to set focus bitmap only to + 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. 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. + Left-justifies the label. Windows and GTK+ only. @style{wxBU_TOP} - Aligns the label to the top of the button. Windows and GTK+ only. + 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. + 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. + 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 ). + 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 flat button. Windows and GTK+ only. + 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 - @beginEventTable{wxCommandEvent} + @beginEventEmissionTable{wxCommandEvent} @event{EVT_BUTTON(id, func)} - Process a wxEVT_COMMAND_BUTTON_CLICKED event, when the button is clicked. + 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: /** @@ -55,14 +117,22 @@ 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 @@ -87,11 +157,6 @@ public: const wxValidator& validator = wxDefaultValidator, const wxString& name = wxButtonNameStr); - /** - Destructor, destroying the button. - */ - virtual ~wxButton(); - /** Button creation function for two-step creation. For more details, see wxButton(). @@ -104,6 +169,20 @@ public: const wxValidator& validator = wxDefaultValidator, const wxString& name = wxButtonNameStr); + /** + Returns @true if an authentication needed symbol is displayed on the + button. + + @remarks This method always returns @false if the platform is not + Windows Vista or newer. + + @see SetAuthNeeded() + + @since 2.9.1 + */ + bool GetAuthNeeded() const; + + /** Returns the default size for the buttons. It is advised to make all the dialog buttons of the same size and this function allows to retrieve the (platform and @@ -118,6 +197,20 @@ public: */ wxString GetLabel() const; + /** + Sets whether an authentication needed symbol should be displayed on the + button. + + @remarks This method doesn't do anything if the platform is not Windows + Vista or newer. + + @see GetAuthNeeded() + + @since 2.9.1 + */ + void SetAuthNeeded(bool needed = true); + + /** This sets the button to be the default item in its top-level window (e.g. the panel or the dialog box containing it). @@ -130,7 +223,7 @@ public: @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();