+static gboolean
+gtk_window_button_press_callback( GtkWidget *widget,
+ GdkEventButton *gdk_event,
+ wxWindowGTK *win )
+{
+ wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
+
+ g_lastButtonNumber = gdk_event->button;
+
+ // GDK sends surplus button down events
+ // before a double click event. We
+ // need to filter these out.
+ if ((gdk_event->type == GDK_BUTTON_PRESS) && (win->m_wxwindow))
+ {
+ GdkEvent *peek_event = gdk_event_peek();
+ if (peek_event)
+ {
+ if ((peek_event->type == GDK_2BUTTON_PRESS) ||
+ (peek_event->type == GDK_3BUTTON_PRESS))
+ {
+ gdk_event_free( peek_event );
+ return TRUE;
+ }
+ else
+ {
+ gdk_event_free( peek_event );
+ }
+ }
+ }
+
+ wxEventType event_type = wxEVT_NULL;
+
+ if ( gdk_event->type == GDK_2BUTTON_PRESS &&
+ gdk_event->button >= 1 && gdk_event->button <= 3 )
+ {
+ // Reset GDK internal timestamp variables in order to disable GDK
+ // triple click events. GDK will then next time believe no button has
+ // been clicked just before, and send a normal button click event.
+ GdkDisplay* display = gtk_widget_get_display (widget);
+ display->button_click_time[1] = 0;
+ display->button_click_time[0] = 0;
+ }
+
+ if (gdk_event->button == 1)
+ {
+ // note that GDK generates triple click events which are not supported
+ // by wxWidgets but still have to be passed to the app as otherwise
+ // clicks would simply go missing
+ switch (gdk_event->type)
+ {
+ // we shouldn't get triple clicks at all for GTK2 because we
+ // suppress them artificially using the code above but we still
+ // should map them to something for GTK1 and not just ignore them
+ // as this would lose clicks
+ case GDK_3BUTTON_PRESS: // we could also map this to DCLICK...
+ case GDK_BUTTON_PRESS:
+ event_type = wxEVT_LEFT_DOWN;
+ break;
+
+ case GDK_2BUTTON_PRESS:
+ event_type = wxEVT_LEFT_DCLICK;
+ break;
+
+ default:
+ // just to silence gcc warnings
+ ;
+ }
+ }
+ else if (gdk_event->button == 2)
+ {
+ switch (gdk_event->type)
+ {
+ case GDK_3BUTTON_PRESS:
+ case GDK_BUTTON_PRESS:
+ event_type = wxEVT_MIDDLE_DOWN;
+ break;
+
+ case GDK_2BUTTON_PRESS:
+ event_type = wxEVT_MIDDLE_DCLICK;
+ break;
+
+ default:
+ ;
+ }
+ }
+ else if (gdk_event->button == 3)
+ {
+ switch (gdk_event->type)
+ {
+ case GDK_3BUTTON_PRESS:
+ case GDK_BUTTON_PRESS:
+ event_type = wxEVT_RIGHT_DOWN;
+ break;
+
+ case GDK_2BUTTON_PRESS:
+ event_type = wxEVT_RIGHT_DCLICK;
+ break;
+
+ default:
+ ;
+ }
+ }
+
+ if ( event_type == wxEVT_NULL )
+ {
+ // unknown mouse button or click type
+ return FALSE;
+ }
+
+ g_lastMouseEvent = (GdkEvent*) gdk_event;
+
+ wxMouseEvent event( event_type );
+ InitMouseEvent( win, event, gdk_event );
+
+ AdjustEventButtonState(event);
+
+ // find the correct window to send the event to: it may be a different one
+ // from the one which got it at GTK+ level because some controls don't have
+ // their own X window and thus cannot get any events.
+ if ( !g_captureWindow )
+ win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
+
+ // reset the event object and id in case win changed.
+ event.SetEventObject( win );
+ event.SetId( win->GetId() );
+
+ bool ret = win->GTKProcessEvent( event );
+ g_lastMouseEvent = NULL;
+ if ( ret )
+ return TRUE;
+
+ if ((event_type == wxEVT_LEFT_DOWN) && !win->IsOfStandardClass() &&
+ (gs_currentFocus != win) /* && win->IsFocusable() */)
+ {
+ win->SetFocus();
+ }
+
+ if (event_type == wxEVT_RIGHT_DOWN)
+ {
+ // generate a "context menu" event: this is similar to right mouse
+ // click under many GUIs except that it is generated differently
+ // (right up under MSW, ctrl-click under Mac, right down here) and
+ //
+ // (a) it's a command event and so is propagated to the parent
+ // (b) under some ports it can be generated from kbd too
+ // (c) it uses screen coords (because of (a))
+ wxContextMenuEvent evtCtx(
+ wxEVT_CONTEXT_MENU,
+ win->GetId(),
+ win->ClientToScreen(event.GetPosition()));
+ evtCtx.SetEventObject(win);
+ return win->GTKProcessEvent(evtCtx);
+ }
+
+ return FALSE;
+}
+
+//-----------------------------------------------------------------------------
+// "button_release_event"
+//-----------------------------------------------------------------------------
+
+static gboolean
+gtk_window_button_release_callback( GtkWidget *WXUNUSED(widget),
+ GdkEventButton *gdk_event,
+ wxWindowGTK *win )
+{
+ wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
+
+ g_lastButtonNumber = 0;
+
+ wxEventType event_type = wxEVT_NULL;
+
+ switch (gdk_event->button)
+ {
+ case 1:
+ event_type = wxEVT_LEFT_UP;
+ break;
+
+ case 2:
+ event_type = wxEVT_MIDDLE_UP;
+ break;
+
+ case 3:
+ event_type = wxEVT_RIGHT_UP;
+ break;
+
+ default:
+ // unknown button, don't process
+ return FALSE;
+ }
+
+ g_lastMouseEvent = (GdkEvent*) gdk_event;
+
+ wxMouseEvent event( event_type );
+ InitMouseEvent( win, event, gdk_event );
+
+ AdjustEventButtonState(event);
+
+ if ( !g_captureWindow )
+ win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
+
+ // reset the event object and id in case win changed.
+ event.SetEventObject( win );
+ event.SetId( win->GetId() );
+
+ bool ret = win->GTKProcessEvent(event);
+
+ g_lastMouseEvent = NULL;
+
+ return ret;
+}
+
+//-----------------------------------------------------------------------------
+// "motion_notify_event"
+//-----------------------------------------------------------------------------
+
+static gboolean
+gtk_window_motion_notify_callback( GtkWidget * WXUNUSED(widget),
+ GdkEventMotion *gdk_event,
+ wxWindowGTK *win )
+{
+ wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
+
+ if (gdk_event->is_hint)
+ {
+ int x = 0;
+ int y = 0;
+ GdkModifierType state;
+ gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
+ gdk_event->x = x;
+ gdk_event->y = y;
+ }
+
+ g_lastMouseEvent = (GdkEvent*) gdk_event;
+
+ wxMouseEvent event( wxEVT_MOTION );
+ InitMouseEvent(win, event, gdk_event);
+
+ if ( g_captureWindow )
+ {
+ // synthesise a mouse enter or leave event if needed
+ GdkWindow *winUnderMouse = gdk_window_at_pointer(NULL, NULL);
+ // This seems to be necessary and actually been added to
+ // GDK itself in version 2.0.X
+ gdk_flush();
+
+ bool hasMouse = winUnderMouse == gdk_event->window;
+ if ( hasMouse != g_captureWindowHasMouse )
+ {
+ // the mouse changed window
+ g_captureWindowHasMouse = hasMouse;
+
+ wxMouseEvent eventM(g_captureWindowHasMouse ? wxEVT_ENTER_WINDOW
+ : wxEVT_LEAVE_WINDOW);
+ InitMouseEvent(win, eventM, gdk_event);
+ eventM.SetEventObject(win);
+ win->GTKProcessEvent(eventM);
+ }
+ }
+ else // no capture
+ {
+ win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
+
+ // reset the event object and id in case win changed.
+ event.SetEventObject( win );
+ event.SetId( win->GetId() );
+ }
+
+ if ( !g_captureWindow )
+ {
+ wxSetCursorEvent cevent( event.m_x, event.m_y );
+ if (win->GTKProcessEvent( cevent ))
+ {
+ win->SetCursor( cevent.GetCursor() );
+ }
+ }
+
+ bool ret = win->GTKProcessEvent(event);
+
+ g_lastMouseEvent = NULL;
+
+ return ret;
+}
+
+//-----------------------------------------------------------------------------
+// "scroll_event" (mouse wheel event)
+//-----------------------------------------------------------------------------
+
+static gboolean
+window_scroll_event_hscrollbar(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
+{
+ if (gdk_event->direction != GDK_SCROLL_LEFT &&
+ gdk_event->direction != GDK_SCROLL_RIGHT)
+ {
+ return false;
+ }
+
+ wxMouseEvent event(wxEVT_MOUSEWHEEL);
+ InitMouseEvent(win, event, gdk_event);
+
+ GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Horz];
+ if (!range) return FALSE;
+
+ if (range && GTK_WIDGET_VISIBLE (range))
+ {
+ GtkAdjustment *adj = range->adjustment;
+ gdouble delta = adj->step_increment * 3;
+ if (gdk_event->direction == GDK_SCROLL_LEFT)
+ delta = -delta;
+
+ gdouble new_value = CLAMP (adj->value + delta, adj->lower, adj->upper - adj->page_size);
+
+ gtk_adjustment_set_value (adj, new_value);
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static gboolean
+window_scroll_event(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
+{
+ if (gdk_event->direction != GDK_SCROLL_UP &&
+ gdk_event->direction != GDK_SCROLL_DOWN)
+ {
+ return false;
+ }
+
+ wxMouseEvent event(wxEVT_MOUSEWHEEL);
+ InitMouseEvent(win, event, gdk_event);
+
+ // FIXME: Get these values from GTK or GDK
+ event.m_linesPerAction = 3;
+ event.m_wheelDelta = 120;
+ if (gdk_event->direction == GDK_SCROLL_UP)
+ event.m_wheelRotation = 120;
+ else
+ event.m_wheelRotation = -120;
+
+ if (win->GTKProcessEvent(event))
+ return TRUE;
+
+ GtkRange *range = win->m_scrollBar[wxWindow::ScrollDir_Vert];
+ if (!range) return FALSE;
+
+ if (range && GTK_WIDGET_VISIBLE (range))
+ {
+ GtkAdjustment *adj = range->adjustment;
+ gdouble delta = adj->step_increment * 3;
+ if (gdk_event->direction == GDK_SCROLL_UP)
+ delta = -delta;
+
+ gdouble new_value = CLAMP (adj->value + delta, adj->lower, adj->upper - adj->page_size);
+
+ gtk_adjustment_set_value (adj, new_value);
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+//-----------------------------------------------------------------------------
+// "popup-menu"
+//-----------------------------------------------------------------------------
+
+static gboolean wxgtk_window_popup_menu_callback(GtkWidget*, wxWindowGTK* win)
+{
+ wxContextMenuEvent event(wxEVT_CONTEXT_MENU, win->GetId(), wxPoint(-1, -1));
+ event.SetEventObject(win);
+ return win->GTKProcessEvent(event);
+}
+
+//-----------------------------------------------------------------------------
+// "focus_in_event"
+//-----------------------------------------------------------------------------
+
+static gboolean
+gtk_window_focus_in_callback( GtkWidget * WXUNUSED(widget),
+ GdkEventFocus *WXUNUSED(event),
+ wxWindowGTK *win )
+{
+ return win->GTKHandleFocusIn();
+}
+
+//-----------------------------------------------------------------------------
+// "focus_out_event"
+//-----------------------------------------------------------------------------
+
+static gboolean
+gtk_window_focus_out_callback( GtkWidget * WXUNUSED(widget),
+ GdkEventFocus * WXUNUSED(gdk_event),
+ wxWindowGTK *win )
+{
+ return win->GTKHandleFocusOut();
+}
+
+//-----------------------------------------------------------------------------
+// "focus"
+//-----------------------------------------------------------------------------
+
+static gboolean
+wx_window_focus_callback(GtkWidget *widget,
+ GtkDirectionType WXUNUSED(direction),
+ wxWindowGTK *win)
+{
+ // the default handler for focus signal in GtkScrolledWindow sets
+ // focus to the window itself even if it doesn't accept focus, i.e. has no
+ // GTK_CAN_FOCUS in its style -- work around this by forcibly preventing
+ // the signal from reaching gtk_scrolled_window_focus() if we don't have
+ // any children which might accept focus (we know we don't accept the focus
+ // ourselves as this signal is only connected in this case)
+ if ( win->GetChildren().empty() )
+ g_signal_stop_emission_by_name(widget, "focus");
+
+ // we didn't change the focus
+ return FALSE;
+}
+
+//-----------------------------------------------------------------------------
+// "enter_notify_event"
+//-----------------------------------------------------------------------------
+
+static gboolean
+gtk_window_enter_callback( GtkWidget *widget,
+ GdkEventCrossing *gdk_event,
+ wxWindowGTK *win )
+{
+ wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
+
+ // Event was emitted after a grab
+ if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
+
+ int x = 0;
+ int y = 0;
+ GdkModifierType state = (GdkModifierType)0;
+
+ gdk_window_get_pointer( widget->window, &x, &y, &state );
+
+ wxMouseEvent event( wxEVT_ENTER_WINDOW );
+ InitMouseEvent(win, event, gdk_event);
+ wxPoint pt = win->GetClientAreaOrigin();
+ event.m_x = x + pt.x;
+ event.m_y = y + pt.y;
+
+ if ( !g_captureWindow )
+ {
+ wxSetCursorEvent cevent( event.m_x, event.m_y );
+ if (win->GTKProcessEvent( cevent ))
+ {
+ win->SetCursor( cevent.GetCursor() );
+ }
+ }
+
+ return win->GTKProcessEvent(event);
+}
+
+//-----------------------------------------------------------------------------
+// "leave_notify_event"
+//-----------------------------------------------------------------------------
+
+static gboolean
+gtk_window_leave_callback( GtkWidget *widget,
+ GdkEventCrossing *gdk_event,
+ wxWindowGTK *win )
+{
+ wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
+
+ // Event was emitted after an ungrab
+ if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
+
+ wxMouseEvent event( wxEVT_LEAVE_WINDOW );
+
+ int x = 0;
+ int y = 0;
+ GdkModifierType state = (GdkModifierType)0;
+
+ gdk_window_get_pointer( widget->window, &x, &y, &state );
+
+ InitMouseEvent(win, event, gdk_event);
+
+ return win->GTKProcessEvent(event);
+}
+
+//-----------------------------------------------------------------------------
+// "value_changed" from scrollbar
+//-----------------------------------------------------------------------------
+
+static void
+gtk_scrollbar_value_changed(GtkRange* range, wxWindow* win)
+{
+ wxEventType eventType = win->GTKGetScrollEventType(range);
+ if (eventType != wxEVT_NULL)
+ {
+ // Convert scroll event type to scrollwin event type
+ eventType += wxEVT_SCROLLWIN_TOP - wxEVT_SCROLL_TOP;
+
+ // find the scrollbar which generated the event
+ wxWindowGTK::ScrollDir dir = win->ScrollDirFromRange(range);
+
+ // generate the corresponding wx event
+ const int orient = wxWindow::OrientFromScrollDir(dir);
+ wxScrollWinEvent event(eventType, win->GetScrollPos(orient), orient);
+ event.SetEventObject(win);
+
+ win->GTKProcessEvent(event);
+ }
+}
+
+//-----------------------------------------------------------------------------
+// "button_press_event" from scrollbar
+//-----------------------------------------------------------------------------
+
+static gboolean
+gtk_scrollbar_button_press_event(GtkRange*, GdkEventButton*, wxWindow* win)
+{
+ g_blockEventsOnScroll = true;
+ win->m_mouseButtonDown = true;
+
+ return false;
+}
+
+//-----------------------------------------------------------------------------
+// "event_after" from scrollbar
+//-----------------------------------------------------------------------------
+
+static void
+gtk_scrollbar_event_after(GtkRange* range, GdkEvent* event, wxWindow* win)
+{
+ if (event->type == GDK_BUTTON_RELEASE)
+ {
+ g_signal_handlers_block_by_func(range, (void*)gtk_scrollbar_event_after, win);
+
+ const int orient = wxWindow::OrientFromScrollDir(
+ win->ScrollDirFromRange(range));
+ wxScrollWinEvent evt(wxEVT_SCROLLWIN_THUMBRELEASE,
+ win->GetScrollPos(orient), orient);
+ evt.SetEventObject(win);
+ win->GTKProcessEvent(evt);
+ }
+}
+
+//-----------------------------------------------------------------------------
+// "button_release_event" from scrollbar
+//-----------------------------------------------------------------------------
+
+static gboolean
+gtk_scrollbar_button_release_event(GtkRange* range, GdkEventButton*, wxWindow* win)
+{
+ g_blockEventsOnScroll = false;
+ win->m_mouseButtonDown = false;
+ // If thumb tracking
+ if (win->m_isScrolling)
+ {
+ win->m_isScrolling = false;
+ // Hook up handler to send thumb release event after this emission is finished.
+ // To allow setting scroll position from event handler, sending event must
+ // be deferred until after the GtkRange handler for this signal has run
+ g_signal_handlers_unblock_by_func(range, (void*)gtk_scrollbar_event_after, win);
+ }
+
+ return false;
+}
+
+//-----------------------------------------------------------------------------
+// "realize" from m_widget
+//-----------------------------------------------------------------------------
+
+static void
+gtk_window_realized_callback(GtkWidget* widget, wxWindow* win)
+{
+ if (win->m_imData)
+ {
+ gtk_im_context_set_client_window( win->m_imData->context,
+ widget->window);
+ }
+
+ // We cannot set colours and fonts before the widget
+ // been realized, so we do this directly after realization
+ // or otherwise in idle time
+
+ if (win->m_needsStyleChange)
+ {
+ win->SetBackgroundStyle(win->GetBackgroundStyle());
+ win->m_needsStyleChange = false;
+ }
+
+ wxWindowCreateEvent event( win );
+ event.SetEventObject( win );
+ win->GTKProcessEvent( event );
+}
+
+//-----------------------------------------------------------------------------
+// "size_allocate" from m_wxwindow or m_widget
+//-----------------------------------------------------------------------------
+
+static void
+size_allocate(GtkWidget*, GtkAllocation* alloc, wxWindow* win)
+{
+ int w = alloc->width;
+ int h = alloc->height;
+ if (win->m_wxwindow)
+ {
+ int border_x, border_y;
+ WX_PIZZA(win->m_wxwindow)->get_border_widths(border_x, border_y);
+ w -= 2 * border_x;
+ h -= 2 * border_y;
+ if (w < 0) w = 0;
+ if (h < 0) h = 0;
+ }
+ if (win->m_oldClientWidth != w || win->m_oldClientHeight != h)
+ {
+ win->m_oldClientWidth = w;
+ win->m_oldClientHeight = h;
+ // this callback can be connected to m_wxwindow,
+ // so always get size from m_widget->allocation
+ win->m_width = win->m_widget->allocation.width;
+ win->m_height = win->m_widget->allocation.height;
+ if (!win->m_nativeSizeEvent)
+ {
+ wxSizeEvent event(win->GetSize(), win->GetId());
+ event.SetEventObject(win);
+ win->GTKProcessEvent(event);
+ }
+ }
+}
+
+//-----------------------------------------------------------------------------
+// "grab_broken"
+//-----------------------------------------------------------------------------
+
+#if GTK_CHECK_VERSION(2, 8, 0)
+static gboolean
+gtk_window_grab_broken( GtkWidget*,
+ GdkEventGrabBroken *event,
+ wxWindow *win )
+{
+ // Mouse capture has been lost involuntarily, notify the application
+ if(!event->keyboard && wxWindow::GetCapture() == win)
+ {
+ wxMouseCaptureLostEvent evt( win->GetId() );
+ evt.SetEventObject( win );
+ win->HandleWindowEvent( evt );
+ }
+ return false;
+}
+#endif
+
+//-----------------------------------------------------------------------------
+// "style_set"
+//-----------------------------------------------------------------------------
+
+static
+void gtk_window_style_set_callback( GtkWidget *WXUNUSED(widget),
+ GtkStyle *previous_style,
+ wxWindow* win )
+{
+ if (win && previous_style)
+ {
+ wxSysColourChangedEvent event;
+ event.SetEventObject(win);
+
+ win->GTKProcessEvent( event );
+ }
+}
+
+} // extern "C"
+
+// Helper to suspend colour change event event processing while we change a widget's style
+class wxSuspendStyleEvents
+{
+public:
+ wxSuspendStyleEvents(wxWindow* win)
+ {
+ m_win = NULL;
+ if (win->m_wxwindow && win->IsTopLevel())
+ {
+ m_win = win;
+ g_signal_handlers_block_by_func(
+ m_win->m_wxwindow, (void*)gtk_window_style_set_callback, m_win);
+ }
+ }
+ ~wxSuspendStyleEvents()
projects / wxWidgets.git / blobdiff