]> git.saurik.com Git - wxWidgets.git/blobdiff - src/gtk/win_gtk.cpp
send destroy events for children before they're fully destroyed; document SendDestroy...
[wxWidgets.git] / src / gtk / win_gtk.cpp
index 1ad4efd4d27ec759a12479c54b804fc11c7d4508..7243df8692f4983997cf1522135155fa1c9142a2 100644 (file)
@@ -8,7 +8,8 @@
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "wx/defs.h"
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "wx/defs.h"
-#include "wx/gtk/win_gtk.h"
+#include "wx/gtk/private.h"
+#include "wx/gtk/private/win_gtk.h"
 
 /*
 wxPizza is a custom GTK+ widget derived from GtkFixed.  A custom widget
 
 /*
 wxPizza is a custom GTK+ widget derived from GtkFixed.  A custom widget
@@ -21,11 +22,8 @@ GtkScrolledWindow.  Child widget positions are adjusted for the scrolling
 position in size_allocate.  A second same-size GdkWindow is placed behind
 widget->window, to allow GDK to use a more efficient scrolling technique.
 
 position in size_allocate.  A second same-size GdkWindow is placed behind
 widget->window, to allow GDK to use a more efficient scrolling technique.
 
-For borders, space is reserved in realize and size_allocate.
-For non-scrolling wxWindows, a second GdkWindow is used for the
-border; scrolling wxWindows draw their border on wxPizza's parent
-(a GtkScrolledWindow) GdkWindow.  Border widths for sunken and raised
-styles are taken from widget->style, so they will match the current theme.
+For borders, space is reserved in realize and size_allocate.  The border is
+drawn on wxPizza's parent GdkWindow.
 
 For RTL, child widget positions are mirrored in size_allocate.
 */
 
 For RTL, child widget positions are mirrored in size_allocate.
 */
@@ -49,8 +47,6 @@ static void size_allocate(GtkWidget* widget, GtkAllocation* alloc)
         widget->allocation.x != alloc->x ||
         widget->allocation.y != alloc->y;
 
         widget->allocation.x != alloc->x ||
         widget->allocation.y != alloc->y;
 
-    widget->allocation = *alloc;
-
     wxPizza* pizza = WX_PIZZA(widget);
     int border_x, border_y;
     pizza->get_border_widths(border_x, border_y);
     wxPizza* pizza = WX_PIZZA(widget);
     int border_x, border_y;
     pizza->get_border_widths(border_x, border_y);
@@ -70,33 +66,28 @@ static void size_allocate(GtkWidget* widget, GtkAllocation* alloc)
             if (is_resize)
                 gdk_window_resize(widget->window, w, h);
         }
             if (is_resize)
                 gdk_window_resize(widget->window, w, h);
         }
-        else if (pizza->m_backing_window)
-        {
-            // two windows, widget->window is smaller by border widths (need to
-            // move widget->window as well as resize because border can change)
-            gdk_window_move_resize(pizza->m_backing_window,
-                alloc->x, alloc->y, alloc->width, alloc->height);
-            gdk_window_move_resize(widget->window, border_x, border_y, w, h);
-        }
         else
         {
             // one window
             gdk_window_move_resize(widget->window,
         else
         {
             // one window
             gdk_window_move_resize(widget->window,
-                alloc->x, alloc->y, alloc->width, alloc->height);
-        }
-        if (is_resize && pizza->m_backing_window)
-        {
-            // wxWidgets turns off redraw-on-allocate by default,
-            // so border area needs to be invalidated
-            if (border_x > 1 || border_y > 1)
+                alloc->x + border_x, alloc->y + border_y, w, h);
+
+            if (is_resize && (border_x || border_y))
             {
             {
-                if (pizza->m_is_scrollable)
-                    ; // invalidate does not seem to be needed in this case
-                else
-                    gdk_window_invalidate_rect(pizza->m_backing_window, NULL, false);
+                // old and new border areas need to be invalidated,
+                // otherwise they will not be erased/redrawn properly
+                const GtkAllocation& a1 = widget->allocation;
+                const GtkAllocation& a2 = *alloc;
+                GdkRectangle r1 = { a1.x, a1.y, a1.width, a1.height };
+                GdkRectangle r2 = { a2.x, a2.y, a2.width, a2.height };
+                gdk_window_invalidate_rect(widget->parent->window, &r1, false);
+                gdk_window_invalidate_rect(widget->parent->window, &r2, false);
             }
         }
     }
             }
         }
     }
+
+    widget->allocation = *alloc;
+
     // adjust child positions
     for (const GList* list = pizza->m_fixed.children; list; list = list->next)
     {
     // adjust child positions
     for (const GList* list = pizza->m_fixed.children; list; list = list->next)
     {
@@ -127,49 +118,46 @@ static void realize(GtkWidget* widget)
     parent_class->realize(widget);
 
     wxPizza* pizza = WX_PIZZA(widget);
     parent_class->realize(widget);
 
     wxPizza* pizza = WX_PIZZA(widget);
-    // second window is created if there is a border, or wxWindow is scrollable
     if (pizza->m_border_style || pizza->m_is_scrollable)
     {
     if (pizza->m_border_style || pizza->m_is_scrollable)
     {
-        GdkWindowAttr attr;
-        attr.event_mask = pizza->m_is_scrollable ? 0 : GDK_EXPOSURE_MASK;
-        attr.x = widget->allocation.x;
-        attr.y = widget->allocation.y;
-        attr.width = widget->allocation.width;
-        attr.height = widget->allocation.height;
         int border_x, border_y;
         pizza->get_border_widths(border_x, border_y);
         int border_x, border_y;
         pizza->get_border_widths(border_x, border_y);
+        int x = widget->allocation.x + border_x;
+        int y = widget->allocation.y + border_y;
         int w = widget->allocation.width  - 2 * border_x;
         int h = widget->allocation.height - 2 * border_y;
         if (w < 0) w = 0;
         if (h < 0) h = 0;
         if (pizza->m_is_scrollable)
         {
         int w = widget->allocation.width  - 2 * border_x;
         int h = widget->allocation.height - 2 * border_y;
         if (w < 0) w = 0;
         if (h < 0) h = 0;
         if (pizza->m_is_scrollable)
         {
-            attr.x += border_x;
-            attr.y += border_y;
+            // second window is created if wxWindow is scrollable
+            GdkWindowAttr attr;
+            attr.event_mask = 0;
+            attr.x = x;
+            attr.y = y;
             attr.width  = w;
             attr.height = h;
             attr.width  = w;
             attr.height = h;
-        }
-        attr.wclass = GDK_INPUT_OUTPUT;
-        attr.visual = gtk_widget_get_visual(widget);
-        attr.colormap = gtk_widget_get_colormap(widget);
-        attr.window_type = GDK_WINDOW_CHILD;
+            attr.wclass = GDK_INPUT_OUTPUT;
+            attr.visual = gtk_widget_get_visual(widget);
+            attr.colormap = gtk_widget_get_colormap(widget);
+            attr.window_type = GDK_WINDOW_CHILD;
 
 
-        pizza->m_backing_window = gdk_window_new(
-            gdk_window_get_parent(widget->window),
-            &attr,
-            GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP);
+            pizza->m_backing_window = gdk_window_new(
+                gdk_window_get_parent(widget->window),
+                &attr,
+                GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP);
 
 
-        gdk_window_set_user_data(pizza->m_backing_window, widget);
-        if (pizza->m_is_scrollable)
+            gdk_window_set_user_data(pizza->m_backing_window, widget);
             gdk_window_reparent(widget->window, pizza->m_backing_window, 0, 0);
             gdk_window_reparent(widget->window, pizza->m_backing_window, 0, 0);
-        else
-            gdk_window_reparent(widget->window, pizza->m_backing_window, border_x, border_y);
-        gdk_window_resize(widget->window, w, h);
+            gdk_window_resize(widget->window, w, h);
 
 
-        // Parts of m_backing_window which are supposed to be obscured may be
-        // exposed temporarily while resizing. Setting the backing pixmap to
-        // None prevents those areas from being briefly painted black.
-        gdk_window_set_back_pixmap(pizza->m_backing_window, NULL, false);
+            // Parts of m_backing_window may be exposed temporarily while
+            // resizing. Setting the backing pixmap to None prevents those
+            // areas from being briefly painted black.
+            gdk_window_set_back_pixmap(pizza->m_backing_window, NULL, false);
+        }
+        else
+            gdk_window_move_resize(widget->window, x, y, w, h);
     }
 }
 
     }
 }
 
@@ -341,6 +329,31 @@ void wxPizza::move(GtkWidget* widget, int x, int y)
     }
 }
 
     }
 }
 
+struct AdjustData {
+    GdkWindow* window;
+    int dx, dy;
+};
+
+// Adjust allocations for all widgets using the GdkWindow which was just scrolled
+extern "C" {
+static void scroll_adjust(GtkWidget* widget, void* data)
+{
+    const AdjustData* p = static_cast<AdjustData*>(data);
+    widget->allocation.x += p->dx;
+    widget->allocation.y += p->dy;
+    
+    if (widget->window == p->window)
+    {
+        // GtkFrame requires a queue_resize, otherwise parts of
+        // the frame newly exposed by the scroll are not drawn.
+        // To be safe, do it for all widgets.
+        gtk_widget_queue_resize_no_redraw(widget);
+        if (GTK_IS_CONTAINER(widget))
+            gtk_container_forall(GTK_CONTAINER(widget), scroll_adjust, data);
+    }
+}
+}
+
 void wxPizza::scroll(int dx, int dy)
 {
     GtkWidget* widget = GTK_WIDGET(this);
 void wxPizza::scroll(int dx, int dy)
 {
     GtkWidget* widget = GTK_WIDGET(this);
@@ -349,30 +362,29 @@ void wxPizza::scroll(int dx, int dy)
     m_scroll_x -= dx;
     m_scroll_y -= dy;
     if (widget->window)
     m_scroll_x -= dx;
     m_scroll_y -= dy;
     if (widget->window)
-        gdk_window_scroll(widget->window, dx, dy);
-    const GList* list = m_fixed.children;
-    if (list)
     {
     {
-        const GtkFixedChild* child = static_cast<GtkFixedChild*>(list->data);
-        // queueing a resize on any child will update them all
-        gtk_widget_queue_resize(child->widget);
+        gdk_window_scroll(widget->window, dx, dy);
+        // Adjust child allocations. Doing a queue_resize on the children is not
+        // enough, sometimes they redraw in the wrong place during fast scrolling.
+        AdjustData data = { widget->window, dx, dy };
+        gtk_container_forall(GTK_CONTAINER(widget), scroll_adjust, &data);
     }
 }
 
     }
 }
 
-extern GtkWidget *GetEntryWidget();
-
 void wxPizza::get_border_widths(int& x, int& y)
 {
     x = y = 0;
 void wxPizza::get_border_widths(int& x, int& y)
 {
     x = y = 0;
+#ifndef __WXUNIVERSAL__
     if (m_border_style & wxBORDER_SIMPLE)
         x = y = 1;
     else if (m_border_style)
     {
     if (m_border_style & wxBORDER_SIMPLE)
         x = y = 1;
     else if (m_border_style)
     {
-        GtkWidget *entry_widget = GetEntryWidget();
+        GtkWidget *entry_widget = wxGTKPrivate::GetEntryWidget();
         if (entry_widget->style)
         {
             x = entry_widget->style->xthickness;
             y = entry_widget->style->ythickness;
         }
     }
         if (entry_widget->style)
         {
             x = entry_widget->style->xthickness;
             y = entry_widget->style->ythickness;
         }
     }
+#endif
 }
 }