make it compile with msvc: !HAVE_UNISTD_H; no label without op, even if

2001-11-18  Hans Breuer  <hans@breuer.org>

	* gtk/gdkaccelmap.c : make it compile with msvc: !HAVE_UNISTD_H;
	no label without op, even if it's a no-op.

	* gtk/gtk.def :
	* gtk/makefile.msc.in : reflect marshaler split, some clean-up

	* config.h.win32.in : remove definition of HAVE_DIRENT_H
	* gtk/gtkfilesel.c : due to GDir (new in glib) DIR isn't
	required anymore, replace it.
	* gtk/queryimmodules.c : DIR -> GDir replacement, also
	getcwd() -> g_get_current_dir()

	* gdk/win32/gdkgeometry-win32.c : adapt to refactored gdkgeometry-x11.c
	Even 'noisy laugh' scolling appears to work, though I still can't
	claim to have fully understood what it is supposed to do ...
This commit is contained in:
Hans Breuer
2001-11-18 15:37:13 +00:00
committed by Hans Breuer
parent cdc4f6a476
commit d9eb9ba9d6
14 changed files with 481 additions and 279 deletions

View File

@ -26,6 +26,7 @@
* 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>
*/
#include "gdk.h" /* For gdk_rectangle_intersect */
@ -68,11 +69,11 @@ struct _GdkWindowParentPos
GdkRectangle clip_rect;
};
static void gdk_window_compute_position (GdkWindowImplWin32 *window,
GdkWindowParentPos *parent_pos,
GdkWin32PositionInfo *info);
static void gdk_window_compute_parent_pos (GdkWindowImplWin32 *window,
GdkWindowParentPos *parent_pos);
static void gdk_window_compute_position (GdkWindowImplWin32 *window,
GdkWindowParentPos *parent_pos,
GdkWin32PositionInfo *info);
static void gdk_window_compute_parent_pos (GdkWindowImplWin32 *window,
GdkWindowParentPos *parent_pos);
static void gdk_window_premove (GdkWindow *window,
GdkWindowParentPos *parent_pos);
static void gdk_window_postmove (GdkWindow *window,
@ -105,30 +106,196 @@ _gdk_window_init_position (GdkWindow *window)
{
GdkWindowParentPos parent_pos;
GdkWindowImplWin32 *impl;
g_return_if_fail (GDK_IS_WINDOW (window));
impl = GDK_WINDOW_IMPL_WIN32 (GDK_WINDOW_OBJECT (window)->impl);
gdk_window_compute_parent_pos (impl, &parent_pos);
gdk_window_compute_position (impl, &parent_pos, &impl->position_info);
}
static void
gdk_window_copy_area_scroll (GdkWindow *window,
GdkRectangle *dest_rect,
gint dx,
gint dy)
{
GdkWindowObject *obj = GDK_WINDOW_OBJECT (window);
GList *tmp_list;
if (dest_rect->width > 0 && dest_rect->height > 0)
{
RECT clipRect;
clipRect.left = dest_rect->x - dx;
clipRect.top = dest_rect->y - dy;
clipRect.right = clipRect.left + dest_rect->width;
clipRect.bottom = clipRect.top + dest_rect->height;
gdk_window_queue_translation (window, dx, dy);
if (!ScrollWindowEx (GDK_WINDOW_HWND (window),
dx, dy, /* in: scroll offsets */
NULL, /* in: scroll rect, NULL == entire client area */
&clipRect, /* in: restrict to, XXX: really want this ?? */
NULL, /* out: update region */
NULL, /* out: update rect */
SW_INVALIDATE))
WIN32_API_FAILED ("ScrollWindowEx");
}
tmp_list = obj->children;
while (tmp_list)
{
GdkWindow *child = GDK_WINDOW (tmp_list->data);
GdkWindowObject *child_obj = GDK_WINDOW_OBJECT (child);
gdk_window_move (child, child_obj->x + dx, child_obj->y + dy);
tmp_list = tmp_list->next;
}
}
static void
compute_intermediate_position (GdkWin32PositionInfo *position_info,
GdkWin32PositionInfo *new_info,
gint d_xoffset,
gint d_yoffset,
GdkRectangle *new_position)
{
gint new_x0, new_x1, new_y0, new_y1;
/* Wrap d_xoffset, d_yoffset into [-32768,32767] range. For the
* purposes of subwindow movement, it doesn't matter if we are
* off by a factor of 65536, and if we don't do this range
* reduction, we'll end up with invalid widths.
*/
d_xoffset = (gint16)d_xoffset;
d_yoffset = (gint16)d_yoffset;
if (d_xoffset < 0)
{
new_x0 = position_info->x + d_xoffset;
new_x1 = position_info->x + position_info->width;
}
else
{
new_x0 = position_info->x;
new_x1 = position_info->x + new_info->width + d_xoffset;
}
new_position->x = new_x0;
new_position->width = new_x1 - new_x0;
if (d_yoffset < 0)
{
new_y0 = position_info->y + d_yoffset;
new_y1 = position_info->y + position_info->height;
}
else
{
new_y0 = position_info->y;
new_y1 = position_info->y + new_info->height + d_yoffset;
}
new_position->y = new_y0;
new_position->height = new_y1 - new_y0;
}
static void
gdk_window_guffaw_scroll (GdkWindow *window,
gint dx,
gint dy)
{
GdkWindowObject *obj = GDK_WINDOW_OBJECT (window);
GdkWindowImplWin32 *impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
gint d_xoffset = -dx;
gint d_yoffset = -dy;
GdkRectangle new_position;
GdkWin32PositionInfo new_info;
GdkWindowParentPos parent_pos;
GList *tmp_list;
gdk_window_compute_parent_pos (impl, &parent_pos);
gdk_window_compute_position (impl, &parent_pos, &new_info);
parent_pos.x += obj->x;
parent_pos.y += obj->y;
parent_pos.win32_x += new_info.x;
parent_pos.win32_y += new_info.y;
parent_pos.clip_rect = new_info.clip_rect;
gdk_window_tmp_unset_bg (window);
if (d_xoffset < 0 || d_yoffset < 0)
gdk_window_queue_translation (window, MIN (d_xoffset, 0), MIN (d_yoffset, 0));
gdk_window_set_static_gravities (window, TRUE);
compute_intermediate_position (&impl->position_info, &new_info, d_xoffset, d_yoffset,
&new_position);
/* XXX: this is only translating the X11 code. Don't know why the
* window movement needs to be done in three steps there, and here ??
*/
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_position.x, new_position.y,
new_position.width, new_position.height,
SWP_NOACTIVATE | SWP_NOZORDER))
WIN32_API_FAILED ("SetWindowPos");
tmp_list = obj->children;
while (tmp_list)
{
GDK_WINDOW_OBJECT(tmp_list->data)->x -= d_xoffset;
GDK_WINDOW_OBJECT(tmp_list->data)->y -= d_yoffset;
gdk_window_premove (tmp_list->data, &parent_pos);
tmp_list = tmp_list->next;
}
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_position.x - d_xoffset, new_position.y - d_yoffset, 1, 1,
SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOSIZE))
WIN32_API_FAILED ("SetWindowPos");
if (d_xoffset > 0 || d_yoffset > 0)
gdk_window_queue_translation (window, MAX (d_xoffset, 0), MAX (d_yoffset, 0));
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
impl->position_info.x, impl->position_info.y,
impl->position_info.width, impl->position_info.height,
SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOSIZE))
WIN32_API_FAILED ("SetWindowPos");
if (impl->position_info.no_bg)
gdk_window_tmp_reset_bg (window);
impl->position_info = new_info;
tmp_list = obj->children;
while (tmp_list)
{
gdk_window_postmove (tmp_list->data, &parent_pos);
tmp_list = tmp_list->next;
}
}
/**
* gdk_window_scroll:
* @window: a #GdkWindow
* @dx: Amount to scroll in the X direction
* @dy: Amount to scroll in the Y direction
*
* Scroll the contents of its window, both pixels and children, by
* the given amount. Portions of the window that the scroll operation
* brings in from offscreen areas are invalidated. The invalidated
* region may be bigger than what would strictly be necessary.
* (For X11, a minimum area will be invalidated if the window has
* no subwindows, or if the edges of the window's parent do not extend
* beyond the edges of the window. In other cases, a multi-step process
* is used to scroll the window which may produce temporary visual
* artifacts and unnecessary invalidations.)
* Scroll the contents of @window, both pixels and children, by the given
* amount. @window itself does not move. Portions of the window that the scroll
* operation brings in from offscreen areas are invalidated. The invalidated
* region may be bigger than what would strictly be necessary. (For Win32, a
* minimum area will be invalidated if the window has no subwindows, or if the
* edges of the window's parent do not extend beyond the edges of the window. In
* other cases, a multi-step process is used to scroll the window which may
* produce temporary visual artifacts and unnecessary invalidations.)
**/
void
gdk_window_scroll (GdkWindow *window,
@ -136,125 +303,60 @@ gdk_window_scroll (GdkWindow *window,
gint dy)
{
gboolean can_guffaw_scroll = FALSE;
GdkRegion *invalidate_region;
GdkWindowImplWin32 *impl;
GdkWindowObject *obj;
GdkRectangle dest_rect;
g_return_if_fail (GDK_IS_WINDOW (window));
obj = GDK_WINDOW_OBJECT (window);
impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
if (GDK_WINDOW_DESTROYED (window))
return;
obj = GDK_WINDOW_OBJECT (window);
impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
if (dx == 0 && dy == 0)
return;
/* Move the current invalid region */
if (obj->update_area)
gdk_region_offset (obj->update_area, dx, dy);
invalidate_region = gdk_region_rectangle (&impl->position_info.clip_rect);
dest_rect = impl->position_info.clip_rect;
dest_rect.x += dx;
dest_rect.y += dy;
gdk_rectangle_intersect (&dest_rect, &impl->position_info.clip_rect, &dest_rect);
if (dest_rect.width > 0 && dest_rect.height > 0)
{
GdkRegion *tmp_region;
tmp_region = gdk_region_rectangle (&dest_rect);
gdk_region_subtract (invalidate_region, tmp_region);
gdk_region_destroy (tmp_region);
}
gdk_window_invalidate_region (window, invalidate_region, TRUE);
gdk_region_destroy (invalidate_region);
/* We can guffaw scroll if we are a child window, and the parent
* does not extend beyond our edges.
* does not extend beyond our edges. Otherwise, we use XCopyArea, then
* move any children later
*/
if (GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD)
{
GdkWindowImplWin32 *parent_impl = GDK_WINDOW_IMPL_WIN32 (obj->parent->impl);
can_guffaw_scroll = (obj->x <= 0 &&
obj->y <= 0 &&
obj->x + impl->width >= parent_impl->width &&
obj->y + impl->height >= parent_impl->height);
can_guffaw_scroll = ((dx == 0 || (obj->x <= 0 && obj->x + impl->width >= parent_impl->width)) &&
(dy == 0 || (obj->y <= 0 && obj->y + impl->height >= parent_impl->height)));
}
if (!obj->children || !can_guffaw_scroll)
{
#if 0 /* this may be the better way to do it, though there seems to
be an offset error in it */
GList *tmp_list = obj->children;
int num_windows = g_list_length (tmp_list) + 1;
HDWP hWinPosInfo = BeginDeferWindowPos (num_windows);
GDK_NOTE (MISC,
g_print ("gdk_window_scroll (%x, %d, %d), %d childs\n",
GDK_WINDOW_HWND (window), dx, dy, num_windows -1));
if (!hWinPosInfo)
WIN32_API_FAILED ("BeginDeferWindowPos");
else
{
hWinPosInfo =
DeferWindowPos (hWinPosInfo, /* may change on return */
GDK_WINDOW_HWND (window),
NULL, /* placement-order handle, ignored */
obj->x + dx, obj->y + dy, /* new pos */
30, 20, /* new size, ignored */
SWP_NOSIZE | SWP_NOZORDER);
while (tmp_list)
{
GdkWindowObject * child = GDK_WINDOW_OBJECT (tmp_list->data);
hWinPosInfo =
DeferWindowPos (hWinPosInfo, /* may change on return */
GDK_WINDOW_HWND (child),
NULL, /* placement-order handle, ignored */
child->x + dx, child->y + dy, /* new pos */
30, 20, /* new size, ignored */
SWP_NOSIZE | SWP_NOZORDER);
tmp_list = tmp_list->next;
}
if (!EndDeferWindowPos (hWinPosInfo))
WIN32_API_FAILED ("EndDeferWindowPos");
}
#else
/* Use ScrollWindowEx, then move any children later
*/
GList *tmp_list;
GdkRegion *invalidate_region;
GdkRectangle dest_rect;
invalidate_region = gdk_region_rectangle (&impl->position_info.clip_rect);
dest_rect = impl->position_info.clip_rect;
dest_rect.x += dx;
dest_rect.y += dy;
gdk_rectangle_intersect (&dest_rect, &impl->position_info.clip_rect, &dest_rect);
if (dest_rect.width > 0 && dest_rect.height > 0)
{
GdkRegion *tmp_region;
tmp_region = gdk_region_rectangle (&dest_rect);
gdk_region_subtract (invalidate_region, tmp_region);
gdk_region_destroy (tmp_region);
gdk_window_queue_translation (window, dx, dy);
if (ScrollWindowEx (GDK_WINDOW_HWND (window), dx, dy,
NULL, NULL, NULL, NULL, 0) == ERROR)
WIN32_API_FAILED ("ScrollWindowEx");
}
gdk_window_invalidate_region (window, invalidate_region, TRUE);
gdk_region_destroy (invalidate_region);
tmp_list = obj->children;
while (tmp_list)
{
GdkWindow * child = GDK_WINDOW (tmp_list->data);
gdk_window_move (child, obj->x + dx, obj->y + dy);
tmp_list = tmp_list->next;
}
#endif
}
gdk_window_copy_area_scroll (window, &dest_rect, dx, dy);
else
{
/* Guffaw scroll
*/
g_warning ("gdk_window_scroll(): guffaw scrolling not yet implemented");
}
gdk_window_guffaw_scroll (window, dx, dy);
}
void
@ -279,7 +381,7 @@ _gdk_window_move_resize_child (GdkWindow *window,
obj = GDK_WINDOW_OBJECT (window);
impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
dx = x - obj->x;
dy = y - obj->y;
@ -310,40 +412,22 @@ _gdk_window_move_resize_child (GdkWindow *window,
if (d_xoffset != 0 || d_yoffset != 0)
{
gint new_x0, new_y0, new_x1, new_y1;
GdkRectangle new_position;
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 = impl->position_info.x + d_xoffset;
new_x1 = impl->position_info.x + impl->position_info.width;
}
else
{
new_x0 = impl->position_info.x;
new_x1 = impl->position_info.x + new_info.width + d_xoffset;
}
if (d_yoffset < 0)
{
new_y0 = impl->position_info.y + d_yoffset;
new_y1 = impl->position_info.y + impl->position_info.height;
}
else
{
new_y0 = impl->position_info.y;
new_y1 = impl->position_info.y + new_info.height + d_yoffset;
}
compute_intermediate_position (&impl->position_info, &new_info, d_xoffset, d_yoffset,
&new_position);
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_x0, new_y0, new_x1 - new_x0, new_y1 - new_y0,
SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOREDRAW))
WIN32_API_FAILED ("SetWindowPos");
new_position.x, new_position.y,
new_position.width, new_position.height,
SWP_NOACTIVATE | SWP_NOZORDER))
WIN32_API_FAILED ("SetWindowPos");
tmp_list = obj->children;
while (tmp_list)
{
@ -352,24 +436,18 @@ _gdk_window_move_resize_child (GdkWindow *window,
}
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_x0 + dx, new_y0 + dy, 0, 0,
SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOSIZE | SWP_NOREDRAW))
WIN32_API_FAILED ("SetWindowPos");
new_position.x + dx, new_position.y + dy, 0, 0,
SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOSIZE | SWP_NOREDRAW))
WIN32_API_FAILED ("SetWindowPos");
if (d_xoffset > 0 || d_yoffset > 0)
gdk_window_queue_translation (window, MAX (d_xoffset, 0), MAX (d_yoffset, 0));
/* FIXME:
*/
if (new_info.x + new_info.width > SIZE_LIMIT)
new_info.width = SIZE_LIMIT - new_info.x;
if (new_info.y + new_info.height > SIZE_LIMIT)
new_info.height = SIZE_LIMIT - new_info.y;
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_info.x, new_info.y, new_info.width, new_info.height,
SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOREDRAW))
WIN32_API_FAILED ("SetWindowPos");
new_info.x, new_info.y,
new_info.width, new_info.height,
SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOREDRAW))
WIN32_API_FAILED ("SetWindowPos");
if (impl->position_info.no_bg)
gdk_window_tmp_reset_bg (window);
@ -402,10 +480,11 @@ _gdk_window_move_resize_child (GdkWindow *window,
}
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_info.x, new_info.y, new_info.width, new_info.height,
SWP_NOACTIVATE | SWP_NOZORDER |
(is_resize ? 0 : SWP_NOSIZE)))
WIN32_API_FAILED ("SetWindowPos");
new_info.x, new_info.y,
new_info.width, new_info.height,
SWP_NOACTIVATE | SWP_NOZORDER |
(is_resize ? 0 : SWP_NOSIZE)))
WIN32_API_FAILED ("SetWindowPos");
tmp_list = obj->children;
while (tmp_list)
@ -426,17 +505,17 @@ _gdk_window_move_resize_child (GdkWindow *window,
static void
gdk_window_compute_position (GdkWindowImplWin32 *window,
GdkWindowParentPos *parent_pos,
GdkWin32PositionInfo *info)
GdkWindowParentPos *parent_pos,
GdkWin32PositionInfo *info)
{
GdkWindowObject *wrapper;
int parent_x_offset;
int parent_y_offset;
g_return_if_fail (GDK_IS_WINDOW_IMPL_WIN32 (window));
wrapper = GDK_WINDOW_OBJECT (GDK_DRAWABLE_IMPL_WIN32 (window)->wrapper);
info->big = FALSE;
if (window->width <= SIZE_LIMIT)
@ -523,7 +602,7 @@ gdk_window_compute_position (GdkWindowImplWin32 *window,
}
static void
gdk_window_compute_parent_pos (GdkWindowImplWin32 *window,
gdk_window_compute_parent_pos (GdkWindowImplWin32 *window,
GdkWindowParentPos *parent_pos)
{
GdkWindowObject *wrapper;
@ -592,7 +671,7 @@ gdk_window_premove (GdkWindow *window,
GList *tmp_list;
gint d_xoffset, d_yoffset;
GdkWindowParentPos this_pos;
obj = (GdkWindowObject *) window;
impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
@ -614,37 +693,19 @@ gdk_window_premove (GdkWindow *window,
if (d_xoffset != 0 || d_yoffset != 0)
{
gint new_x0, new_y0, new_x1, new_y1;
GdkRectangle new_position;
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 = impl->position_info.x + d_xoffset;
new_x1 = impl->position_info.x + impl->position_info.width;
}
else
{
new_x0 = impl->position_info.x;
new_x1 = impl->position_info.x + new_info.width + d_xoffset;
}
if (d_yoffset < 0)
{
new_y0 = impl->position_info.y + d_yoffset;
new_y1 = impl->position_info.y + impl->position_info.height;
}
else
{
new_y0 = impl->position_info.y;
new_y1 = impl->position_info.y + new_info.height + d_yoffset;
}
compute_intermediate_position (&impl->position_info, &new_info, d_xoffset, d_yoffset,
&new_position);
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_x0, new_y0, new_x1 - new_x0, new_y1 - new_y0,
new_position.x, new_position.y,
new_position.width, new_position.height,
SWP_NOREDRAW | SWP_NOZORDER | SWP_NOACTIVATE))
WIN32_API_FAILED ("SetWindowPos");
WIN32_API_FAILED ("SetWindowPos");
}
tmp_list = obj->children;
@ -665,7 +726,7 @@ gdk_window_postmove (GdkWindow *window,
GList *tmp_list;
gint d_xoffset, d_yoffset;
GdkWindowParentPos this_pos;
obj = (GdkWindowObject *) window;
impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
@ -686,9 +747,10 @@ gdk_window_postmove (GdkWindow *window,
gdk_window_queue_translation (window, MAX (d_xoffset, 0), MAX (d_yoffset, 0));
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_info.x, new_info.y, new_info.width, new_info.height,
SWP_NOREDRAW | SWP_NOZORDER | SWP_NOACTIVATE))
WIN32_API_FAILED ("SetWindowPos");
new_info.x, new_info.y,
new_info.width, new_info.height,
SWP_NOREDRAW | SWP_NOZORDER | SWP_NOACTIVATE))
WIN32_API_FAILED ("SetWindowPos");
}
if (!impl->position_info.mapped && new_info.mapped && GDK_WINDOW_IS_MAPPED (obj))
@ -781,13 +843,13 @@ _gdk_window_process_expose (GdkWindow *window,
GdkRegion *invalidate_region = gdk_region_rectangle (area);
GdkRegion *clip_region;
GSList *tmp_list = translate_queue;
impl = GDK_WINDOW_IMPL_WIN32 (GDK_WINDOW_OBJECT (window)->impl);
GDK_NOTE (EVENTS, g_print ("_gdk_window_process_expose %#x %ld %dx%d@+%d+%d\n",
(guint) GDK_WINDOW_HWND (window), serial,
area->width, area->height, area->x, area->y));
while (tmp_list)
{
GdkWindowQueueItem *item = tmp_list->data;
@ -823,7 +885,7 @@ _gdk_window_process_expose (GdkWindow *window,
if (!gdk_region_empty (invalidate_region))
gdk_window_invalidate_region (window, invalidate_region, FALSE);
gdk_region_destroy (invalidate_region);
gdk_region_destroy (clip_region);
}
@ -872,15 +934,13 @@ gdk_window_tmp_reset_bg (GdkWindow *window)
}
static void
gdk_window_clip_changed (GdkWindow *window,
GdkRectangle *old_clip,
GdkRectangle *new_clip)
gdk_window_clip_changed (GdkWindow *window, GdkRectangle *old_clip, GdkRectangle *new_clip)
{
GdkWindowImplWin32 *impl;
GdkWindowObject *obj;
GdkRegion *old_clip_region;
GdkRegion *new_clip_region;
if (((GdkWindowObject *)window)->input_only)
return;
@ -890,6 +950,11 @@ gdk_window_clip_changed (GdkWindow *window,
old_clip_region = gdk_region_rectangle (old_clip);
new_clip_region = gdk_region_rectangle (new_clip);
/* We need to update this here because gdk_window_invalidate_region makes
* use if it (through gdk_drawable_get_visible_region
*/
impl->position_info.clip_rect = *new_clip;
/* Trim invalid region of window to new clip rectangle
*/
if (obj->update_area)