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New file, just a quick hack of the X11 version.

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2000-05-02  Tor Lillqvist  <tml@iki.fi>

* gdk/win32/gdkgeometry-win32.c: New file, just a quick hack of
the X11 version.
This commit is contained in:
Tor Lillqvist 2000-05-01 22:49:16 +00:00 committed by Tor Lillqvist
parent 1f149b3a8d
commit 4481ff0cef
8 changed files with 723 additions and 0 deletions
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3
ChangeLog
View File

@ -59,6 +59,9 @@
assignment was used instead of equals in if test. Thanks to Hans
Breuer.
* gdk/win32/gdkgeometry-win32.c: New file, just a quick hack of
the X11 version.
* gdk/win32/makefile.{cygwin,msc}
* gtk/makefile.{cygwin,msc}: Updates. Better kludge to get the
path to the Win32 headers that works also with the mingw compiler.

3
ChangeLog.pre-2-0
View File

@ -59,6 +59,9 @@
assignment was used instead of equals in if test. Thanks to Hans
Breuer.
* gdk/win32/gdkgeometry-win32.c: New file, just a quick hack of
the X11 version.
* gdk/win32/makefile.{cygwin,msc}
* gtk/makefile.{cygwin,msc}: Updates. Better kludge to get the
path to the Win32 headers that works also with the mingw compiler.

3
ChangeLog.pre-2-10
View File

@ -59,6 +59,9 @@
assignment was used instead of equals in if test. Thanks to Hans
Breuer.
* gdk/win32/gdkgeometry-win32.c: New file, just a quick hack of
the X11 version.
* gdk/win32/makefile.{cygwin,msc}
* gtk/makefile.{cygwin,msc}: Updates. Better kludge to get the
path to the Win32 headers that works also with the mingw compiler.

3
ChangeLog.pre-2-2
View File

@ -59,6 +59,9 @@
assignment was used instead of equals in if test. Thanks to Hans
Breuer.
* gdk/win32/gdkgeometry-win32.c: New file, just a quick hack of
the X11 version.
* gdk/win32/makefile.{cygwin,msc}
* gtk/makefile.{cygwin,msc}: Updates. Better kludge to get the
path to the Win32 headers that works also with the mingw compiler.

3
ChangeLog.pre-2-4
View File

@ -59,6 +59,9 @@
assignment was used instead of equals in if test. Thanks to Hans
Breuer.
* gdk/win32/gdkgeometry-win32.c: New file, just a quick hack of
the X11 version.
* gdk/win32/makefile.{cygwin,msc}
* gtk/makefile.{cygwin,msc}: Updates. Better kludge to get the
path to the Win32 headers that works also with the mingw compiler.

3
ChangeLog.pre-2-6
View File

@ -59,6 +59,9 @@
assignment was used instead of equals in if test. Thanks to Hans
Breuer.
* gdk/win32/gdkgeometry-win32.c: New file, just a quick hack of
the X11 version.
* gdk/win32/makefile.{cygwin,msc}
* gtk/makefile.{cygwin,msc}: Updates. Better kludge to get the
path to the Win32 headers that works also with the mingw compiler.

3
ChangeLog.pre-2-8
View File

@ -59,6 +59,9 @@
assignment was used instead of equals in if test. Thanks to Hans
Breuer.
* gdk/win32/gdkgeometry-win32.c: New file, just a quick hack of
the X11 version.
* gdk/win32/makefile.{cygwin,msc}
* gtk/makefile.{cygwin,msc}: Updates. Better kludge to get the
path to the Win32 headers that works also with the mingw compiler.

702
gdk/win32/gdkgeometry-win32.c Normal file
View File

@ -0,0 +1,702 @@
/* 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 Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
*/
/* gdkgeometry-win32.c: emulation of 32 bit coordinates within the
* limits of Win32 GDI. Just a copy of the X11 version, more or less.
* Probably totally bogus in functionality. Just a quick hack, to
* get the thing to build. Need to write some test code for it.
* Well, need to find out what it is supposed to do first ;-)
*
* The X11 version by Owen Taylor <otaylor@redhat.com>
* Copyright Red Hat, Inc. 2000
* Win32 hack by Tor Lillqvist <tml@iki.fi>
*/
#include "gdk.h" /* For gdk_rectangle_intersect */
#include "gdkregion.h"
#include "gdkregion-generic.h"
#include "gdkinternals.h"
#include "gdkprivate-win32.h"
typedef struct _GdkWindowQueueItem GdkWindowQueueItem;
typedef struct _GdkWindowParentPos GdkWindowParentPos;
typedef enum {
GDK_WINDOW_QUEUE_TRANSLATE,
GDK_WINDOW_QUEUE_ANTIEXPOSE
} GdkWindowQueueType;
struct _GdkWindowQueueItem
{
GdkWindow *window;
gulong serial;
GdkWindowQueueType type;
union {
struct {
gint dx;
gint dy;
} translate;
struct {
GdkRegion *area;
} antiexpose;
} u;
};
struct _GdkWindowParentPos
{
gint x;
gint y;
gint win32_x;
gint win32_y;
GdkRectangle clip_rect;
};
static void gdk_window_compute_position (GdkWindow *window,
GdkWindowParentPos *parent_pos,
GdkWin32PositionInfo *info);
static void gdk_window_compute_parent_pos (GdkWindow *window,
GdkWindowParentPos *parent_pos);
static void gdk_window_premove (GdkWindow *window,
GdkWindowParentPos *parent_pos);
static void gdk_window_postmove (GdkWindow *window,
GdkWindowParentPos *parent_pos);
static void gdk_window_queue_translation (GdkWindow *window,
gint dx,
gint dy);
static void gdk_window_tmp_unset_bg (GdkWindow *window);
static void gdk_window_tmp_reset_bg (GdkWindow *window);
static void gdk_window_clip_changed (GdkWindow *window,
GdkRectangle *old_clip,
GdkRectangle *new_clip);
static GSList *translate_queue = NULL;
void
_gdk_windowing_window_get_offsets (GdkWindow *window,
gint *x_offset,
gint *y_offset)
{
GdkWindowWin32Data *data = GDK_WINDOW_WIN32DATA (window);
*x_offset = data->position_info.x_offset;
*y_offset = data->position_info.y_offset;
}
void
_gdk_window_init_position (GdkWindow *window)
{
GdkWindowWin32Data *data;
GdkWindowParentPos parent_pos;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
data = GDK_WINDOW_WIN32DATA (window);
gdk_window_compute_parent_pos (window, &parent_pos);
gdk_window_compute_position (window, &parent_pos, &data->position_info);
}
void
_gdk_window_move_resize_child (GdkWindow *window,
gint x,
gint y,
gint width,
gint height)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
GdkWin32PositionInfo new_info;
GdkWindowParentPos parent_pos;
GdkWindowWin32Data *data;
RECT rect;
GList *tmp_list;
gint d_xoffset, d_yoffset;
gint dx, dy;
gboolean is_move;
gboolean is_resize;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
data = GDK_WINDOW_WIN32DATA (window);
dx = x - private->x;
dy = y - private->y;
is_move = dx != 0 || dy != 0;
is_resize = private->drawable.width != width || private->drawable.height != height;
if (!is_move && !is_resize)
return;
private->x = x;
private->y = y;
private->drawable.width = width;
private->drawable.height = height;
gdk_window_compute_parent_pos (window, &parent_pos);
gdk_window_compute_position (window, &parent_pos, &new_info);
gdk_window_clip_changed (window, &data->position_info.clip_rect, &new_info.clip_rect);
parent_pos.x += private->x;
parent_pos.y += private->y;
parent_pos.win32_x += new_info.x;
parent_pos.win32_y += new_info.y;
parent_pos.clip_rect = new_info.clip_rect;
d_xoffset = new_info.x_offset - data->position_info.x_offset;
d_yoffset = new_info.y_offset - data->position_info.y_offset;
if (d_xoffset != 0 || d_yoffset != 0)
{
gint new_x0, new_y0, new_x1, new_y1;
gdk_window_set_static_gravities (window, TRUE);
if (d_xoffset < 0 || d_yoffset < 0)
gdk_window_queue_translation (window, MIN (d_xoffset, 0), MIN (d_yoffset, 0));
if (d_xoffset < 0)
{
new_x0 = data->position_info.x + d_xoffset;
new_x1 = data->position_info.x + data->position_info.width;
}
else
{
new_x0 = data->position_info.x;
new_x1 = data->position_info.x + new_info.width + d_xoffset;
}
if (d_yoffset < 0)
{
new_y0 = data->position_info.y + d_yoffset;
new_y1 = data->position_info.y + data->position_info.height;
}
else
{
new_y0 = data->position_info.y;
new_y1 = data->position_info.y + new_info.height + d_yoffset;
}
if (!MoveWindow (GDK_DRAWABLE_XID (window),
new_x0, new_y0, new_x1 - new_x0, new_y1 - new_y0,
FALSE))
WIN32_API_FAILED ("MoveWindow");
tmp_list = private->children;
while (tmp_list)
{
gdk_window_premove (tmp_list->data, &parent_pos);
tmp_list = tmp_list->next;
}
GetClientRect (GDK_DRAWABLE_XID (window), &rect);
if (!MoveWindow (GDK_DRAWABLE_XID (window),
new_x0 + dx, new_y0 + dy,
rect.right - rect.left, rect.bottom - rect.top,
FALSE))
WIN32_API_FAILED ("MoveWindow");
if (d_xoffset > 0 || d_yoffset > 0)
gdk_window_queue_translation (window, MAX (d_xoffset, 0), MAX (d_yoffset, 0));
if (!MoveWindow (GDK_DRAWABLE_XID (window),
new_info.x, new_info.y, new_info.width, new_info.height,
FALSE))
WIN32_API_FAILED ("MoveWindow");
if (data->position_info.no_bg)
gdk_window_tmp_reset_bg (window);
if (!data->position_info.mapped && new_info.mapped && private->mapped)
ShowWindow (GDK_DRAWABLE_XID (window), SW_SHOWNA);
data->position_info = new_info;
tmp_list = private->children;
while (tmp_list)
{
gdk_window_postmove (tmp_list->data, &parent_pos);
tmp_list = tmp_list->next;
}
}
else
{
if (is_move && is_resize)
gdk_window_set_static_gravities (window, FALSE);
if (data->position_info.mapped && !new_info.mapped)
ShowWindow (GDK_DRAWABLE_XID (window), SW_HIDE);
tmp_list = private->children;
while (tmp_list)
{
gdk_window_premove (tmp_list->data, &parent_pos);
tmp_list = tmp_list->next;
}
if (is_resize)
{
if (!MoveWindow (GDK_DRAWABLE_XID (window),
new_info.x, new_info.y, new_info.width, new_info.height,
FALSE))
WIN32_API_FAILED ("MoveWindow");
}
else
{
GetClientRect (GDK_DRAWABLE_XID (window), &rect);
if (!MoveWindow (GDK_DRAWABLE_XID (window),
new_info.x, new_info.y,
rect.right - rect.left, rect.bottom - rect.top,
FALSE))
WIN32_API_FAILED ("MoveWindow");
}
tmp_list = private->children;
while (tmp_list)
{
gdk_window_postmove (tmp_list->data, &parent_pos);
tmp_list = tmp_list->next;
}
if (data->position_info.no_bg)
gdk_window_tmp_reset_bg (window);
if (!data->position_info.mapped && new_info.mapped && private->mapped)
ShowWindow (GDK_DRAWABLE_XID (window), SW_SHOWNA);
data->position_info = new_info;
}
}
static void
gdk_window_compute_position (GdkWindow *window,
GdkWindowParentPos *parent_pos,
GdkWin32PositionInfo *info)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
int parent_x_offset;
int parent_y_offset;
info->big = FALSE;
if (private->drawable.width <= 32768)
{
info->width = private->drawable.width;
info->x = parent_pos->x + private->x - parent_pos->win32_x;
}
else
{
info->big = TRUE;
info->width = 32768;
if (parent_pos->x + private->x < -16384)
{
if (parent_pos->x + private->x + private->drawable.width < 16384)
info->x = parent_pos->x + private->x + private->drawable.width - 32768 - parent_pos->win32_x;
else
info->x = -16384 - parent_pos->win32_y;
}
else
info->x = parent_pos->x + private->x - parent_pos->win32_x;
}
if (private->drawable.height <= 32768)
{
info->height = private->drawable.height;
info->y = parent_pos->y + private->y - parent_pos->win32_y;
}
else
{
info->big = TRUE;
info->height = 32768;
if (parent_pos->y + private->y < -16384)
{
if (parent_pos->y + private->y + private->drawable.height < 16384)
info->y = parent_pos->y + private->y + private->drawable.height - 32768 - parent_pos->win32_y;
else
info->y = -16384 - parent_pos->win32_y;
}
else
info->y = parent_pos->y + private->y - parent_pos->win32_y;
}
parent_x_offset = parent_pos->win32_x - parent_pos->x;
parent_y_offset = parent_pos->win32_y - parent_pos->y;
info->x_offset = parent_x_offset + info->x - private->x;
info->y_offset = parent_y_offset + info->y - private->y;
/* We don't considering the clipping of toplevel windows and their immediate children
* by their parents, and simply always map those windows.
*/
if (parent_pos->clip_rect.width == G_MAXINT)
info->mapped = TRUE;
/* Check if the window would wrap around into the visible space in either direction */
else if (info->x + parent_x_offset < parent_pos->clip_rect.x + parent_pos->clip_rect.width - 65536 ||
info->x + info->width + parent_x_offset > parent_pos->clip_rect.x + 65536 ||
info->y + parent_y_offset < parent_pos->clip_rect.y + parent_pos->clip_rect.height - 65536 ||
info->y + info->width + parent_y_offset > parent_pos->clip_rect.y + 65536)
info->mapped = FALSE;
else
info->mapped = TRUE;
info->no_bg = FALSE;
if (GDK_DRAWABLE_TYPE (private) == GDK_WINDOW_CHILD)
{
info->clip_rect.x = private->x;
info->clip_rect.y = private->y;
info->clip_rect.width = private->drawable.width;
info->clip_rect.height = private->drawable.height;
gdk_rectangle_intersect (&info->clip_rect, &parent_pos->clip_rect, &info->clip_rect);
info->clip_rect.x -= private->x;
info->clip_rect.y -= private->y;
}
else
{
info->clip_rect.x = 0;
info->clip_rect.y = 0;
info->clip_rect.width = G_MAXINT;
info->clip_rect.height = G_MAXINT;
}
}
static void
gdk_window_compute_parent_pos (GdkWindow *window,
GdkWindowParentPos *parent_pos)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
GdkWindowWin32Data *data;
GdkRectangle tmp_clip;
int clip_xoffset = 0;
int clip_yoffset = 0;
parent_pos->x = 0;
parent_pos->y = 0;
parent_pos->win32_x = 0;
parent_pos->win32_y = 0;
/* We take a simple approach here and simply consider toplevel
* windows not to clip their children on the right/bottom, since the
* size of toplevel windows is not directly under our
* control. Clipping only really matters when scrolling and
* generally we aren't going to be moving the immediate child of a
* toplevel beyond the bounds of that toplevel.
*
* We could go ahead and recompute the clips of toplevel windows and
* their descendents when we receive size notification, but it would
* probably not be an improvement in most cases.
*/
parent_pos->clip_rect.x = 0;
parent_pos->clip_rect.y = 0;
parent_pos->clip_rect.width = G_MAXINT;
parent_pos->clip_rect.height = G_MAXINT;
private = (GdkWindowPrivate *)private->parent;
while (private && private->drawable.window_type == GDK_WINDOW_CHILD)
{
data = (GdkWindowWin32Data *)private->drawable.klass_data;
tmp_clip.x = - clip_xoffset;
tmp_clip.y = - clip_yoffset;
tmp_clip.width = private->drawable.width;
tmp_clip.height = private->drawable.height;
gdk_rectangle_intersect (&parent_pos->clip_rect, &tmp_clip, &parent_pos->clip_rect);
parent_pos->x += private->x;
parent_pos->y += private->y;
parent_pos->win32_x += data->position_info.x;
parent_pos->win32_y += data->position_info.y;
clip_xoffset += private->x;
clip_yoffset += private->y;
private = (GdkWindowPrivate *)private->parent;
}
}
static void
gdk_window_premove (GdkWindow *window,
GdkWindowParentPos *parent_pos)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
GdkWindowWin32Data *data = GDK_WINDOW_WIN32DATA (window);
GdkWin32PositionInfo new_info;
GList *tmp_list;
gint d_xoffset, d_yoffset;
GdkWindowParentPos this_pos;
gdk_window_compute_position (window, parent_pos, &new_info);
gdk_window_clip_changed (window, &data->position_info.clip_rect, &new_info.clip_rect);
this_pos.x = parent_pos->x + private->x;
this_pos.y = parent_pos->y + private->y;
this_pos.win32_x = parent_pos->win32_x + new_info.x;
this_pos.win32_y = parent_pos->win32_y + new_info.y;
this_pos.clip_rect = new_info.clip_rect;
if (data->position_info.mapped && !new_info.mapped)
ShowWindow (GDK_DRAWABLE_XID (window), SW_HIDE);
d_xoffset = new_info.x_offset - data->position_info.x_offset;
d_yoffset = new_info.y_offset - data->position_info.y_offset;
if (d_xoffset != 0 || d_yoffset != 0)
{
gint new_x0, new_y0, new_x1, new_y1;
if (d_xoffset < 0 || d_yoffset < 0)
gdk_window_queue_translation (window, MIN (d_xoffset, 0), MIN (d_yoffset, 0));
if (d_xoffset < 0)
{
new_x0 = data->position_info.x + d_xoffset;
new_x1 = data->position_info.x + data->position_info.width;
}
else
{
new_x0 = data->position_info.x;
new_x1 = data->position_info.x + new_info.width + d_xoffset;
}
if (d_yoffset < 0)
{
new_y0 = data->position_info.y + d_yoffset;
new_y1 = data->position_info.y + data->position_info.height;
}
else
{
new_y0 = data->position_info.y;
new_y1 = data->position_info.y + new_info.height + d_yoffset;
}
if (!MoveWindow (GDK_DRAWABLE_XID (window),
new_x0, new_y0, new_x1 - new_x0, new_y1 - new_y0,
FALSE))
WIN32_API_FAILED ("MoveWindow");
}
tmp_list = private->children;
while (tmp_list)
{
gdk_window_premove (tmp_list->data, &this_pos);
tmp_list = tmp_list->next;
}
}
static void
gdk_window_postmove (GdkWindow *window,
GdkWindowParentPos *parent_pos)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
GdkWindowWin32Data *data = (GdkWindowWin32Data *)private->drawable.klass_data;
GdkWin32PositionInfo new_info;
GList *tmp_list;
gint d_xoffset, d_yoffset;
GdkWindowParentPos this_pos;
gdk_window_compute_position (window, parent_pos, &new_info);
this_pos.x = parent_pos->x + private->x;
this_pos.y = parent_pos->y + private->y;
this_pos.win32_x = parent_pos->win32_x + new_info.x;
this_pos.win32_y = parent_pos->win32_y + new_info.y;
this_pos.clip_rect = new_info.clip_rect;
d_xoffset = new_info.x_offset - data->position_info.x_offset;
d_yoffset = new_info.y_offset - data->position_info.y_offset;
if (d_xoffset != 0 || d_yoffset != 0)
{
if (d_xoffset > 0 || d_yoffset > 0)
gdk_window_queue_translation (window, MAX (d_xoffset, 0), MAX (d_yoffset, 0));
if (!MoveWindow (GDK_DRAWABLE_XID (window),
new_info.x, new_info.y, new_info.width, new_info.height,
FALSE))
WIN32_API_FAILED ("MoveWindow");
}
if (!data->position_info.mapped && new_info.mapped && private->mapped)
ShowWindow (GDK_DRAWABLE_XID (window), SW_SHOWNA);
if (data->position_info.no_bg)
gdk_window_tmp_reset_bg (window);
data->position_info = new_info;
tmp_list = private->children;
while (tmp_list)
{
gdk_window_postmove (tmp_list->data, &this_pos);
tmp_list = tmp_list->next;
}
}
static void
gdk_window_queue_translation (GdkWindow *window,
gint dx,
gint dy)
{
GdkWindowQueueItem *item = g_new (GdkWindowQueueItem, 1);
item->window = window;
item->serial = GetMessageTime ();
item->type = GDK_WINDOW_QUEUE_TRANSLATE;
item->u.translate.dx = dx;
item->u.translate.dy = dy;
GDK_NOTE (EVENTS, g_print ("gdk_window_queue_translation %#x %d %d,%d\n",
GDK_DRAWABLE_XID (window),
item->serial,
dx, dy));
gdk_drawable_ref (window);
translate_queue = g_slist_append (translate_queue, item);
}
gboolean
_gdk_windowing_window_queue_antiexpose (GdkWindow *window,
GdkRegion *area)
{
GdkWindowQueueItem *item = g_new (GdkWindowQueueItem, 1);
item->window = window;
item->serial = GetMessageTime ();
item->type = GDK_WINDOW_QUEUE_ANTIEXPOSE;
item->u.antiexpose.area = area;
GDK_NOTE (EVENTS, g_print ("_gdk_windowing_window_queue_antiexpose %#x %d %dx%d@+%d+%d\n",
GDK_DRAWABLE_XID (window),
item->serial,
area->extents.x2 - area->extents.x1,
area->extents.y2 - area->extents.y1,
area->extents.x1, area->extents.y1));
gdk_drawable_ref (window);
translate_queue = g_slist_append (translate_queue, item);
return TRUE;
}
void
_gdk_window_process_expose (GdkWindow *window,
gulong serial,
GdkRectangle *area)
{
GdkWindowWin32Data *data = GDK_WINDOW_WIN32DATA (window);
GdkRegion *invalidate_region = gdk_region_rectangle (area);
GdkRegion *clip_region;
GSList *tmp_list = translate_queue;
GDK_NOTE (EVENTS, g_print ("_gdk_window_process_expose %#x %d %dx%d@+%d+%d\n",
GDK_DRAWABLE_XID (window), serial,
area->width, area->height, area->x, area->y));
while (tmp_list)
{
GdkWindowQueueItem *item = tmp_list->data;
tmp_list = tmp_list->next;
if (serial < item->serial)
{
if (item->window == window)
{
if (item->type == GDK_WINDOW_QUEUE_TRANSLATE)
gdk_region_offset (invalidate_region, - item->u.translate.dx, - item->u.translate.dy);
else /* anti-expose */
gdk_region_subtract (invalidate_region, item->u.antiexpose.area);
}
}
else
{
GSList *tmp_link = translate_queue;
translate_queue = g_slist_remove_link (translate_queue, translate_queue);
gdk_drawable_unref (item->window);
if (item->type == GDK_WINDOW_QUEUE_ANTIEXPOSE)
gdk_region_destroy (item->u.antiexpose.area);
g_free (item);
g_slist_free_1 (tmp_link);
}
}
clip_region = gdk_region_rectangle (&data->position_info.clip_rect);
gdk_region_intersect (invalidate_region, clip_region);
if (!gdk_region_empty (invalidate_region))
gdk_window_invalidate_region (window, invalidate_region, FALSE);
gdk_region_destroy (invalidate_region);
gdk_region_destroy (clip_region);
}
static void
gdk_window_tmp_unset_bg (GdkWindow *window)
{
/* ??? */
}
static void
gdk_window_tmp_reset_bg (GdkWindow *window)
{
/* ??? */
}
static void
gdk_window_clip_changed (GdkWindow *window, GdkRectangle *old_clip, GdkRectangle *new_clip)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
GdkRegion *old_clip_region;
GdkRegion *new_clip_region;
if (private->input_only)
return;
old_clip_region = gdk_region_rectangle (old_clip);
new_clip_region = gdk_region_rectangle (new_clip);
/* Trim invalid region of window to new clip rectangle
*/
if (private->update_area)
gdk_region_intersect (private->update_area, new_clip_region);
/* Invalidate newly exposed portion of window
*/
gdk_region_subtract (new_clip_region, old_clip_region);
if (!gdk_region_empty (new_clip_region))
{
gdk_window_tmp_unset_bg (window);
gdk_window_invalidate_region (window, new_clip_region, FALSE);
}
gdk_region_destroy (new_clip_region);
gdk_region_destroy (old_clip_region);
}