gtk/gdk/gdkprivate.h
Behdad Esfahbod b4328913d8 Avoid overflow when converting coordinates to Pango units. (#332266, Jody
2007-01-05  Behdad Esfahbod  <behdad@gnome.org>

        * gdk/gdkprivate.h:
        * gdk/gdkpango.c (gdk_draw_layout_line_with_colors),
        (gdk_draw_layout_with_colors):
        * gdk/gdkwindow.c (gdk_window_draw_glyphs_transformed):
        Avoid overflow when converting coordinates to Pango units. (#332266,
        Jody Goldberg)


svn path=/trunk/; revision=17075
2007-01-05 06:16:32 +00:00

66 lines
2.3 KiB
C

/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#ifndef __GDK_PRIVATE_H__
#define __GDK_PRIVATE_H__
#include <gdk/gdktypes.h>
#include <gdk/gdkevents.h>
#include <gdk/gdkfont.h>
#include <gdk/gdkgc.h>
#include <gdk/gdkimage.h>
#include <gdk/gdkregion.h>
#include <gdk/gdkvisual.h>
#include <gdk/gdkwindow.h>
G_BEGIN_DECLS
#define GDK_PARENT_RELATIVE_BG ((GdkPixmap *)1L)
#define GDK_NO_BG ((GdkPixmap *)2L)
#define GDK_WINDOW_TYPE(d) (((GdkWindowObject*)(GDK_WINDOW (d)))->window_type)
#define GDK_WINDOW_DESTROYED(d) (((GdkWindowObject*)(GDK_WINDOW (d)))->destroyed)
void gdk_window_destroy_notify (GdkWindow *window);
void gdk_synthesize_window_state (GdkWindow *window,
GdkWindowState unset_flags,
GdkWindowState set_flags);
/* Tests whether a pair of x,y may cause overflows when converted to Pango
* units (multiplied by PANGO_SCALE). We don't allow the entire range, leave
* some space for additions afterwards, to be safe...
*/
#define GDK_PANGO_UNITS_OVERFLOWS(x,y) (G_UNLIKELY ( \
(y) >= PANGO_PIXELS (G_MAXINT-PANGO_SCALE)/2 || \
(x) >= PANGO_PIXELS (G_MAXINT-PANGO_SCALE)/2 || \
(y) <=-PANGO_PIXELS (G_MAXINT-PANGO_SCALE)/2 || \
(x) <=-PANGO_PIXELS (G_MAXINT-PANGO_SCALE)/2))
G_END_DECLS
#endif /* __GDK_PRIVATE_H__ */