X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/beab25bde380ccff9bb0ebb8d8743a8d4b13fcdd..6540eefca769382fe0eb926fe40ae14405e440f3:/src/gtk1/window.cpp

diff --git a/src/gtk1/window.cpp b/src/gtk1/window.cpp
index 784407129e..748fa87aa0 100644
--- a/src/gtk1/window.cpp
+++ b/src/gtk1/window.cpp
@@ -805,30 +805,6 @@ static int gtk_window_expose_callback( GtkWidget *widget,
     if (gdk_event->count == 0)
         win->GtkSendPaintEvents();
 
-    // The following code will result in all window-less widgets
-    // being redrawn if the wxWindows class is given a chance to
-    // paint *anything* because it will then be allowed to paint
-    // over the window-less widgets.
-    GList *children = pizza->children;
-    while (children)
-    {
-        GtkPizzaChild *child = (GtkPizzaChild*) children->data;
-        children = children->next;
-
-        GdkEventExpose child_event = *gdk_event;
-
-        if (GTK_WIDGET_NO_WINDOW (child->widget) &&
-            GTK_WIDGET_DRAWABLE (child->widget) /* &&
-            gtk_widget_intersect (child->widget, &gdk_event->area, &child_event.area)*/ )
-        {
-            child_event.area.x = child->widget->allocation.x;
-            child_event.area.y = child->widget->allocation.y;
-            child_event.area.width = child->widget->allocation.width;
-            child_event.area.height = child->widget->allocation.height;
-            gtk_widget_event (child->widget, (GdkEvent*) &child_event);
-        }
-    }
-
     return TRUE;
 }
 
@@ -3320,8 +3296,8 @@ void wxWindowGTK::WarpPointer( int x, int y )
 {
     wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
 
-    /* we provide this function ourselves as it is
-       missing in GDK (top of this file)  */
+    // We provide this function ourselves as it is
+    // missing in GDK (top of this file).
 
     GdkWindow *window = (GdkWindow*) NULL;
     if (m_wxwindow)
@@ -3348,84 +3324,45 @@ void wxWindowGTK::Refresh( bool eraseBackground, const wxRect *rect )
     {
         if (rect)
         {
-            gdk_window_clear_area( GTK_PIZZA(m_wxwindow)->bin_window,
-                                   rect->x, rect->y,
-                                   rect->width, rect->height );
+            // Schedule for later Updating in ::Update() or ::OnInternalIdle().
+            m_clearRegion.Union( rect->x, rect->y, rect->width, rect->height );
         }
         else
         {
-            gdk_window_clear( GTK_PIZZA(m_wxwindow)->bin_window );
+            // Schedule for later Updating in ::Update() or ::OnInternalIdle().
+            m_clearRegion.Clear();
+            m_clearRegion.Union( 0, 0, m_wxwindow->allocation.width, m_wxwindow->allocation.height );
         }
     }
 
-    /* there is no GTK equivalent of "draw only, don't clear" so we
-       invent our own in the GtkPizza widget */
-
-    if (!rect)
+    if (rect)
     {
         if (m_wxwindow)
         {
-
-/*
-            GtkPizza *pizza = GTK_PIZZA(m_wxwindow);
-            gboolean old_clear = pizza->clear_on_draw;
-            gtk_pizza_set_clear( pizza, FALSE );
-            gtk_widget_draw( m_wxwindow, (GdkRectangle*) NULL );
-            gtk_pizza_set_clear( pizza, old_clear );
-*/
-            GdkEventExpose gdk_event;
-            gdk_event.type = GDK_EXPOSE;
-            gdk_event.window = GTK_PIZZA(m_wxwindow)->bin_window;
-            gdk_event.count = 0;
-            gdk_event.area.x = 0;
-            gdk_event.area.y = 0;
-            gdk_event.area.width = m_wxwindow->allocation.width;
-            gdk_event.area.height = m_wxwindow->allocation.height;
-            gtk_window_expose_callback( m_wxwindow, &gdk_event, (wxWindow *)this );
+            // Schedule for later Updating in ::Update() or ::OnInternalIdle().
+            m_updateRegion.Union( rect->x, rect->y, rect->width, rect->height );
         }
         else
         {
-            gtk_widget_draw( m_widget, (GdkRectangle*) NULL );
+            GdkRectangle gdk_rect;
+            gdk_rect.x = rect->x;
+            gdk_rect.y = rect->y;
+            gdk_rect.width = rect->width;
+            gdk_rect.height = rect->height;
+            gtk_widget_draw( m_widget, &gdk_rect );
         }
     }
     else
     {
-
         if (m_wxwindow)
         {
-/*
-            GtkPizza *pizza = GTK_PIZZA(m_wxwindow);
-            gboolean old_clear = pizza->clear_on_draw;
-            gtk_pizza_set_clear( pizza, FALSE );
-
-            GdkRectangle gdk_rect;
-            gdk_rect.x = rect->x;
-            gdk_rect.y = rect->y;
-            gdk_rect.width = rect->width;
-            gdk_rect.height = rect->height;
-            gtk_widget_draw( m_wxwindow, &gdk_rect );
-            gtk_window_draw_callback( m_wxwindow, &gdk_rect, this );
-
-            gtk_pizza_set_clear( pizza, old_clear );
-*/
-            GdkEventExpose gdk_event;
-            gdk_event.type = GDK_EXPOSE;
-            gdk_event.window = GTK_PIZZA(m_wxwindow)->bin_window;
-            gdk_event.count = 0;
-            gdk_event.area.x = rect->x;
-            gdk_event.area.y = rect->y;
-            gdk_event.area.width = rect->width;
-            gdk_event.area.height = rect->height;
-            gtk_window_expose_callback( m_wxwindow, &gdk_event, (wxWindow *)this );
+            // Schedule for later Updating in ::Update() or ::OnInternalIdle().
+            m_updateRegion.Clear();
+            m_updateRegion.Union( 0, 0, m_wxwindow->allocation.width, m_wxwindow->allocation.height );
         }
         else
         {
-            GdkRectangle gdk_rect;
-            gdk_rect.x = rect->x;
-            gdk_rect.y = rect->y;
-            gdk_rect.width = rect->width;
-            gdk_rect.height = rect->height;
-            gtk_widget_draw( m_widget, &gdk_rect );
+            gtk_widget_draw( m_widget, (GdkRectangle*) NULL );
         }
     }
 }
@@ -3434,39 +3371,41 @@ void wxWindowGTK::Update()
 {
     if (!m_updateRegion.IsEmpty())
     {
-        printf( "never gets called\n" );
+        GtkSendPaintEvents();
     }
 }
 
 void wxWindowGTK::GtkSendPaintEvents()
 {
-    m_clipPaintRegion = TRUE;
+    if (!m_wxwindow)
+    {
+        m_clearRegion.Clear();
+        m_updateRegion.Clear();
+        return;
+    }
 
-    wxWindowDC dc( this );
-    dc.SetClippingRegion( m_updateRegion );
-    wxEraseEvent erase_event( GetId(), &dc );
-    erase_event.SetEventObject( this );
+    m_clipPaintRegion = TRUE;
 
-#if 1
-    GetEventHandler()->ProcessEvent( erase_event );
-#else
-    if (!GetEventHandler()->ProcessEvent(erase_event))
+    if (!m_clearRegion.IsEmpty())
     {
+        wxWindowDC dc( (wxWindow*)this );
+        dc.SetClippingRegion( m_clearRegion );
+        
+        wxEraseEvent erase_event( GetId(), &dc );
+        erase_event.SetEventObject( this );
+    
         if (!GetEventHandler()->ProcessEvent(erase_event))
         {
-            wxClientDC dc( this );
-            dc.SetBrush( wxBrush( GetBackgroundColour(), wxSOLID ) );
-            dc.SetPen( *wxTRANSPARENT_PEN );
-
-            wxRegionIterator upd( m_updateRegion );
+            wxRegionIterator upd( m_clearRegion );
             while (upd)
             {
-                dc.DrawRectangle( upd.GetX(), upd.GetY(), upd.GetWidth(), upd.GetHeight() );
+                gdk_window_clear_area( GTK_PIZZA(m_wxwindow)->bin_window,
+                                       upd.GetX(), upd.GetY(), upd.GetWidth(), upd.GetHeight() );
                 upd ++;
             }
         }
+        m_clearRegion.Clear();
     }
-#endif
 
     wxNcPaintEvent nc_paint_event( GetId() );
     nc_paint_event.SetEventObject( this );
@@ -3476,9 +3415,38 @@ void wxWindowGTK::GtkSendPaintEvents()
     paint_event.SetEventObject( this );
     GetEventHandler()->ProcessEvent( paint_event );
 
-    m_updateRegion.Clear();
-
     m_clipPaintRegion = FALSE;
+
+    GtkPizza *pizza = GTK_PIZZA(m_wxwindow);
+    if (g_list_length(pizza->children) > 0)
+    {
+        // The following code will result in all window-less widgets
+        // being redrawn because the wxWindows class is allowed to
+        // paint over the window-less widgets.
+        GList *children = pizza->children;
+        while (children)
+        {
+            GtkPizzaChild *child = (GtkPizzaChild*) children->data;
+            children = children->next;
+
+            if (GTK_WIDGET_NO_WINDOW (child->widget) &&
+                GTK_WIDGET_DRAWABLE (child->widget))
+            {
+                // Get intersection of widget area and update region
+                wxRegion region( m_updateRegion );
+                region.Intersect( child->widget->allocation.x,
+                                  child->widget->allocation.y,
+                                  child->widget->allocation.width,
+                                  child->widget->allocation.height );
+                
+                // Redraw the whole widget anyway
+                if (!region.IsEmpty())
+                    gtk_widget_draw( child->widget, NULL );
+            }
+        }
+    }
+
+    m_updateRegion.Clear();
 }
 
 void wxWindowGTK::Clear()
@@ -4077,13 +4045,39 @@ void wxWindowGTK::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
 
     wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
 
+    // No scrolling requested.
     if ((dx == 0) && (dy == 0)) return;
+    
+    if (!m_updateRegion.IsEmpty())
+    {
+        m_updateRegion.Offset( dx, dy );
+        
+        int cw = 0;
+        int ch = 0;
+        GetClientSize( &cw, &ch );
+        m_updateRegion.Intersect( 0, 0, cw, ch );
+    }
+    
+    if (!m_clearRegion.IsEmpty())
+    {
+        m_clearRegion.Offset( dx, dy );
+        
+        int cw = 0;
+        int ch = 0;
+        GetClientSize( &cw, &ch );
+        m_clearRegion.Intersect( 0, 0, cw, ch );
+    }
+    
+#if 1
 
     m_clipPaintRegion = TRUE;
+    
     gtk_pizza_scroll( GTK_PIZZA(m_wxwindow), -dx, -dy );
+    
     m_clipPaintRegion = FALSE;
 
-/*
+#else
+
     if (m_children.GetCount() > 0)
     {
         gtk_pizza_scroll( GTK_PIZZA(m_wxwindow), -dx, -dy );
@@ -4133,7 +4127,7 @@ void wxWindowGTK::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
 
         gdk_gc_unref( m_scrollGC );
     }
-*/
+#endif
 }
 
 // Find the wxWindow at the current mouse position, also returning the mouse