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app: don't leave artifacts on the box when a child changes its size

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gimp_overlay_child_size_allocate(): invalidate the child's old area
before moving its window around.
This commit is contained in:
Michael Natterer
2010-02-20 11:05:37 +01:00
parent f0ba888c06
commit 9bc0ea5466
1 changed files with 22 additions and 5 deletions
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17
app/widgets/gimpoverlaychild.c
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@ -236,11 +236,28 @@ gimp_overlay_child_size_allocate (GimpOverlayBox *box,
gtk_widget_get_allocation (child->widget, &child_allocation);
if (GTK_WIDGET_REALIZED (widget))
{
GdkRectangle old_allocation;
GdkRectangle old_bounds;
gdk_window_get_position (child->window,
&old_allocation.x,
&old_allocation.y);
gdk_drawable_get_size (child->window,
&old_allocation.width,
&old_allocation.height);
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);
}
cairo_matrix_init_identity (&child->matrix);