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app: fix various artifacts of the cancas' overlay children

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gimp_overlay_child_size_allocate(): invalidate the old and new
position of the child, and simplify the code by calling our own
invalidate() function instead of duplicating its code.

gimp_overlay_child_expose(): process pending updates on the overlay
child's offscreen window before getting its pixmap.
This commit is contained in:
Michael Natterer
2013-04-28 04:05:52 +02:00
parent 9c93df2d4b
commit e19c7eb36c
1 changed files with 22 additions and 31 deletions
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53
app/widgets/gimpoverlaychild.c
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@ -230,7 +230,6 @@ gimp_overlay_child_size_allocate (GimpOverlayBox *box,
GimpOverlayChild *child)
{
GtkWidget *widget;
GtkAllocation allocation;
GtkRequisition child_requisition;
GtkAllocation child_allocation;
gint x;
@ -241,7 +240,7 @@ gimp_overlay_child_size_allocate (GimpOverlayBox *box,
widget = GTK_WIDGET (box);
gtk_widget_get_allocation (widget, &allocation);
gimp_overlay_child_invalidate (box, child);
gtk_widget_get_child_requisition (child->widget, &child_requisition);
@ -252,30 +251,12 @@ gimp_overlay_child_size_allocate (GimpOverlayBox *box,
gtk_widget_size_allocate (child->widget, &child_allocation);
gtk_widget_get_allocation (child->widget, &child_allocation);
if (gtk_widget_get_realized (GTK_WIDGET (widget)))
{
GdkRectangle old_allocation;
GdkRectangle old_bounds;
gdk_window_get_position (child->window,
&old_allocation.x,
&old_allocation.y);
old_allocation.width = gdk_window_get_width (child->window);
old_allocation.height = gdk_window_get_height (child->window);
gimp_overlay_child_transform_bounds (child, &old_allocation, &old_bounds);
gdk_window_invalidate_rect (gtk_widget_get_window (widget),
&old_bounds, FALSE);
gdk_window_move_resize (child->window,
child_allocation.x,
child_allocation.y,
child_allocation.width,
child_allocation.height);
}
gdk_window_move_resize (child->window,
child_allocation.x,
child_allocation.y,
child_allocation.width,
child_allocation.height);
cairo_matrix_init_identity (&child->matrix);
@ -289,10 +270,13 @@ gimp_overlay_child_size_allocate (GimpOverlayBox *box,
}
else
{
GdkRectangle bounds;
gint border;
gint available_width;
gint available_height;
GtkAllocation allocation;
GdkRectangle bounds;
gint border;
gint available_width;
gint available_height;
gtk_widget_get_allocation (widget, &allocation);
gimp_overlay_child_transform_bounds (child, &child_allocation, &bounds);
@ -315,6 +299,8 @@ gimp_overlay_child_size_allocate (GimpOverlayBox *box,
/* local transform */
cairo_matrix_rotate (&child->matrix, child->angle);
gimp_overlay_child_invalidate (box, child);
}
gboolean
@ -342,8 +328,13 @@ gimp_overlay_child_expose (GimpOverlayBox *box,
if (gtk_widget_get_visible (child->widget) &&
gdk_rectangle_intersect (&event->area, &bounds, NULL))
{
GdkPixmap *pixmap = gdk_offscreen_window_get_pixmap (child->window);
cairo_t *cr = gdk_cairo_create (gtk_widget_get_window (widget));
GdkPixmap *pixmap;
cairo_t *cr;
gdk_window_process_updates (child->window, FALSE);
pixmap = gdk_offscreen_window_get_pixmap (child->window);
cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdk_cairo_region (cr, event->region);
cairo_clip (cr);