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paned: Don't overdraw

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When moving children 'off', we can't allow them to draw outside
the paned allocation, so clip when drawing.

https://bugzilla.gnome.org/show_bug.cgi?id=761903
This commit is contained in:
Matthias Clasen 2016-02-12 15:01:58 -05:00
parent 5562f4f273
commit 48d7219296
1 changed files with 8 additions and 26 deletions
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34
gtk/gtkpaned.c
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@ -1798,41 +1798,23 @@ gtk_paned_render (GtkCssGadget *gadget,
GtkWidget *widget = gtk_css_gadget_get_owner (gadget);
GtkPaned *paned = GTK_PANED (widget);
GtkPanedPrivate *priv = paned->priv;
GtkStyleContext *context = gtk_widget_get_style_context (widget);
cairo_save (cr);
cairo_rectangle (cr, x, y, width, height);
cairo_clip (cr);
if (gtk_cairo_should_draw_window (cr, priv->child1_window))
{
cairo_save (cr);
gtk_cairo_transform_to_window (cr, widget, priv->child1_window);
gtk_render_background (context,
cr,
0, 0,
gdk_window_get_width (priv->child1_window),
gdk_window_get_height (priv->child1_window));
cairo_restore (cr);
}
gtk_container_propagate_draw (GTK_CONTAINER (widget), priv->child1, cr);
if (gtk_cairo_should_draw_window (cr, priv->child2_window))
{
cairo_save (cr);
gtk_cairo_transform_to_window (cr, widget, priv->child2_window);
gtk_render_background (context,
cr,
0, 0,
gdk_window_get_width (priv->child2_window),
gdk_window_get_height (priv->child2_window));
cairo_restore (cr);
}
gtk_container_propagate_draw (GTK_CONTAINER (widget), priv->child2, cr);
if (gtk_cairo_should_draw_window (cr, gtk_widget_get_window (widget)) &&
priv->child1 && gtk_widget_get_visible (priv->child1) &&
priv->child2 && gtk_widget_get_visible (priv->child2))
{
gtk_css_gadget_draw (priv->handle_gadget, cr);
}
gtk_css_gadget_draw (priv->handle_gadget, cr);
/* Chain up to draw children */
GTK_WIDGET_CLASS (gtk_paned_parent_class)->draw (widget, cr);
cairo_restore (cr);
return FALSE;
}