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/* 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, see <http://www.gnu.org/licenses/>.
*/
/* gdkgeometry-win32.c: emulation of 32 bit coordinates within the
* limits of Win32 GDI. The idea of big window emulation is more or less
* a copy of the X11 version, and the equvalent of guffaw scrolling
* is ScrollWindowEx(). While we determine the invalidated region
* ourself during scrolling, we do not pass SW_INVALIDATE to
* ScrollWindowEx() to avoid a unnecessary WM_PAINT.
*
* Bits are always scrolled correctly by ScrollWindowEx(), but
* some big children may hit the coordinate boundary (i.e.
* win32_x/win32_y < -16383) after scrolling. They needed to be moved
* back to the real position determined by gdk_window_compute_position().
* This is handled in gdk_window_postmove().
*
* The X11 version by Owen Taylor <otaylor@redhat.com>
* Copyright Red Hat, Inc. 2000
* Win32 hack by Tor Lillqvist <tml@iki.fi>
* and Hans Breuer <hans@breuer.org>
* Modified by Ivan, Wong Yat Cheung <email@ivanwong.info>
* so that big window emulation finally works.
*/
#include "config.h"
#include "gdk.h" /* For gdk_rectangle_intersect */
#include "gdkinternals.h"
#include "gdkprivate-win32.h"
#include "gdkwin32.h"
#define SIZE_LIMIT 32767
typedef struct _GdkWindowParentPos GdkWindowParentPos;
static void tmp_unset_bg (GdkWindow *window);
static void tmp_reset_bg (GdkWindow *window);
void
_gdk_window_move_resize_child (GdkWindow *window,
gint x,
gint y,
gint width,
gint height)
{
GdkWindowImplWin32 *impl;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
GDK_NOTE (MISC, g_print ("_gdk_window_move_resize_child: %s@%+d%+d %dx%d@%+d%+d\n",
_gdk_win32_window_description (window),
window->x, window->y, width, height, x, y));
if (width > 65535 || height > 65535)
{
g_warning ("Native children wider or taller than 65535 pixels are not supported.");
if (width > 65535)
width = 65535;
if (height > 65535)
height = 65535;
}
window->x = x;
window->y = y;
window->width = width;
window->height = height;
_gdk_win32_window_tmp_unset_parent_bg (window);
_gdk_win32_window_tmp_unset_bg (window, TRUE);
GDK_NOTE (MISC, g_print ("... SetWindowPos(%p,NULL,%d,%d,%d,%d,"
"NOACTIVATE|NOZORDER)\n",
GDK_WINDOW_HWND (window),
window->x + window->parent->abs_x, window->y + window->parent->abs_y,
width, height));
API_CALL (SetWindowPos, (GDK_WINDOW_HWND (window), NULL,
window->x + window->parent->abs_x, window->y + window->parent->abs_y,
width, height,
SWP_NOACTIVATE | SWP_NOZORDER));
_gdk_win32_window_tmp_reset_bg (window, TRUE);
}
void
_gdk_win32_window_tmp_unset_bg (GdkWindow *window,
gboolean recurse)
{
g_return_if_fail (GDK_IS_WINDOW (window));
if (window->input_only || window->destroyed ||
(window->window_type != GDK_WINDOW_ROOT &&
!GDK_WINDOW_IS_MAPPED (window)))
return;
if (_gdk_window_has_impl (window) &&
GDK_WINDOW_IS_WIN32 (window) &&
window->window_type != GDK_WINDOW_ROOT &&
window->window_type != GDK_WINDOW_FOREIGN)
tmp_unset_bg (window);
if (recurse)
{
GList *l;
for (l = window->children; l != NULL; l = l->next)
_gdk_win32_window_tmp_unset_bg (l->data, TRUE);
}
}
static void
tmp_unset_bg (GdkWindow *window)
{
GdkWindowImplWin32 *impl;
impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
impl->no_bg = TRUE;
}
static void
tmp_reset_bg (GdkWindow *window)
{
GdkWindowImplWin32 *impl;
impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
impl->no_bg = FALSE;
}
void
_gdk_win32_window_tmp_unset_parent_bg (GdkWindow *window)
{
if (GDK_WINDOW_TYPE (window->parent) == GDK_WINDOW_ROOT)
return;
window = _gdk_window_get_impl_window (window->parent);
_gdk_win32_window_tmp_unset_bg (window, FALSE);
}
void
_gdk_win32_window_tmp_reset_bg (GdkWindow *window,
gboolean recurse)
{
g_return_if_fail (GDK_IS_WINDOW (window));
if (window->input_only || window->destroyed ||
(window->window_type != GDK_WINDOW_ROOT && !GDK_WINDOW_IS_MAPPED (window)))
return;
if (_gdk_window_has_impl (window) &&
GDK_WINDOW_IS_WIN32 (window) &&
window->window_type != GDK_WINDOW_ROOT &&
window->window_type != GDK_WINDOW_FOREIGN)
{
tmp_reset_bg (window);
}
if (recurse)
{
GList *l;
for (l = window->children; l != NULL; l = l->next)
_gdk_win32_window_tmp_reset_bg (l->data, TRUE);
}
}
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