-// ----------------------------------------------------------------------------
-// bitmaps support
-// ----------------------------------------------------------------------------
-
-void wxButton::GTKMouseEnters()
-{
- m_isCurrent = true;
-
- GTKUpdateBitmap();
-}
-
-void wxButton::GTKMouseLeaves()
-{
- m_isCurrent = false;
-
- GTKUpdateBitmap();
-}
-
-void wxButton::GTKPressed()
-{
- m_isPressed = true;
-
- GTKUpdateBitmap();
-}
-
-void wxButton::GTKReleased()
-{
- m_isPressed = false;
-
- GTKUpdateBitmap();
-}
-
-void wxButton::GTKOnFocus(wxFocusEvent& event)
-{
- event.Skip();
-
- GTKUpdateBitmap();
-}
-
-wxButton::State wxButton::GTKGetCurrentState() const
-{
- if ( !IsThisEnabled() )
- return m_bitmaps[State_Disabled].IsOk() ? State_Disabled : State_Normal;
-
- if ( m_isPressed && m_bitmaps[State_Pressed].IsOk() )
- return State_Pressed;
-
- if ( m_isCurrent && m_bitmaps[State_Current].IsOk() )
- return State_Current;
-
- if ( HasFocus() && m_bitmaps[State_Focused].IsOk() )
- return State_Focused;
-
- return State_Normal;
-}
-
-void wxButton::GTKUpdateBitmap()
-{
- // if we don't show bitmaps at all, there is nothing to update
- if ( m_bitmaps[State_Normal].IsOk() )
- {
- // if we do show them, this will return a state for which we do have a
- // valid bitmap
- State state = GTKGetCurrentState();
-
- GTKDoShowBitmap(m_bitmaps[state]);
- }
-}
-
-void wxButton::GTKDoShowBitmap(const wxBitmap& bitmap)
-{
- wxASSERT_MSG( bitmap.IsOk(), "invalid bitmap" );
-
- GtkWidget *image;
- if ( DontShowLabel() )
- {
- image = gtk_bin_get_child(GTK_BIN(m_widget));
- }
- else // have both label and bitmap
- {
-#ifdef __WXGTK26__
- if ( !gtk_check_version(2,6,0) )
- {
- image = gtk_button_get_image(GTK_BUTTON(m_widget));
- }
- else
-#endif // __WXGTK26__
- {
- // buttons with both label and bitmap are only supported with GTK+
- // 2.6 so far
- //
- // it shouldn't be difficult to implement them ourselves for the
- // previous GTK+ versions by stuffing a container with a label and
- // an image inside GtkButton but there doesn't seem to be much
- // point in doing this for ancient GTK+ versions
- return;
- }
- }
-
- wxCHECK_RET( image && GTK_IS_IMAGE(image), "must have image widget" );
-
- gtk_image_set_from_pixbuf(GTK_IMAGE(image), bitmap.GetPixbuf());
-}
-
-wxBitmap wxButton::DoGetBitmap(State which) const
-{
- return m_bitmaps[which];
-}
-
-void wxButton::DoSetBitmap(const wxBitmap& bitmap, State which)
-{
- switch ( which )
- {
- case State_Normal:
- if ( DontShowLabel() )
- {
- // we only have the bitmap in this button, never remove it but
- // do invalidate the best size when the bitmap (and presumably
- // its size) changes
- InvalidateBestSize();
- }
-#ifdef __WXGTK26__
- // normal image is special: setting it enables images for the button and
- // resetting it to nothing disables all of them
- else if ( !gtk_check_version(2,6,0) )
- {
- GtkWidget *image = gtk_button_get_image(GTK_BUTTON(m_widget));
- if ( image && !bitmap.IsOk() )
- {
- gtk_container_remove(GTK_CONTAINER(m_widget), image);
- }
- else if ( !image && bitmap.IsOk() )
- {
- image = gtk_image_new();
- gtk_button_set_image(GTK_BUTTON(m_widget), image);
- }
- else // image presence or absence didn't change
- {
- // don't invalidate best size below
- break;
- }
-
- InvalidateBestSize();
- }
-#endif // GTK+ 2.6+
- break;
-
- case State_Pressed:
- if ( bitmap.IsOk() )
- {
- if ( !m_bitmaps[which].IsOk() )
- {
- // we need to install the callbacks to be notified about
- // the button pressed state change
- g_signal_connect
- (
- m_widget,
- "pressed",
- G_CALLBACK(wxgtk_button_press_callback),
- this
- );
-
- g_signal_connect
- (
- m_widget,
- "released",
- G_CALLBACK(wxgtk_button_released_callback),
- this
- );
- }
- }
- else // no valid bitmap
- {
- if ( m_bitmaps[which].IsOk() )
- {
- // we don't need to be notified about the button pressed
- // state changes any more
- g_signal_handlers_disconnect_by_func
- (
- m_widget,
- (gpointer)wxgtk_button_press_callback,
- this
- );
-
- g_signal_handlers_disconnect_by_func
- (
- m_widget,
- (gpointer)wxgtk_button_released_callback,
- this
- );
-
- // also make sure we don't remain stuck in pressed state
- if ( m_isPressed )
- {
- m_isPressed = false;
- GTKUpdateBitmap();
- }
- }
- }
- break;
-
- case State_Current:
- // the logic here is the same as above for State_Pressed: we need
- // to connect the handlers if we must be notified about the changes
- // in the button current state and we disconnect them when/if we
- // don't need them any more
- if ( bitmap.IsOk() )
- {
- if ( !m_bitmaps[which].IsOk() )
- {
- g_signal_connect
- (
- m_widget,
- "enter",
- G_CALLBACK(wxgtk_button_enter_callback),
- this
- );
-
- g_signal_connect
- (
- m_widget,
- "leave",
- G_CALLBACK(wxgtk_button_leave_callback),
- this
- );
- }
- }
- else // no valid bitmap
- {
- if ( m_bitmaps[which].IsOk() )
- {
- g_signal_handlers_disconnect_by_func
- (
- m_widget,
- (gpointer)wxgtk_button_enter_callback,
- this
- );
-
- g_signal_handlers_disconnect_by_func
- (
- m_widget,
- (gpointer)wxgtk_button_leave_callback,
- this
- );
-
- if ( m_isCurrent )
- {
- m_isCurrent = false;
- GTKUpdateBitmap();
- }
- }
- }
- break;
-
- case State_Focused:
- if ( bitmap.IsOk() )
- {
- Connect(wxEVT_SET_FOCUS,
- wxFocusEventHandler(wxButton::GTKOnFocus));
- Connect(wxEVT_KILL_FOCUS,
- wxFocusEventHandler(wxButton::GTKOnFocus));
- }
- else // no valid focused bitmap
- {
- Disconnect(wxEVT_SET_FOCUS,
- wxFocusEventHandler(wxButton::GTKOnFocus));
- Disconnect(wxEVT_KILL_FOCUS,
- wxFocusEventHandler(wxButton::GTKOnFocus));
- }
- break;
-
- default:
- // no callbacks to connect/disconnect
- ;
- }
-
- m_bitmaps[which] = bitmap;
-
- // update the bitmap immediately if necessary, otherwise it will be done
- // when the bitmap for the corresponding state is needed the next time by
- // GTKUpdateBitmap()
- if ( bitmap.IsOk() && which == GTKGetCurrentState() )
- {
- GTKDoShowBitmap(bitmap);
- }
-}
-
-void wxButton::DoSetBitmapPosition(wxDirection dir)
-{
-#ifdef __WXGTK210__
- if ( !gtk_check_version(2,10,0) )
- {
- GtkPositionType gtkpos;
- switch ( dir )
- {
- default:
- wxFAIL_MSG( "invalid position" );
- // fall through
-
- case wxLEFT:
- gtkpos = GTK_POS_LEFT;
- break;
-
- case wxRIGHT:
- gtkpos = GTK_POS_RIGHT;
- break;
-
- case wxTOP:
- gtkpos = GTK_POS_TOP;
- break;
-
- case wxBOTTOM:
- gtkpos = GTK_POS_BOTTOM;
- break;
- }
-
- gtk_button_set_image_position(GTK_BUTTON(m_widget), gtkpos);
- InvalidateBestSize();
- }
-#endif // GTK+ 2.10+
-}
-
projects / wxWidgets.git / blobdiff