callisto-debian/gtk3
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Get the invalidated region from ScrollWindowEx() instead of an incorrect

Browse Source 
2006-01-02  Tor Lillqvist  <tml@novell.com>

	* gdk/win32/gdkgeometry-win32.c (gdk_window_scroll): Get the
	invalidated region from ScrollWindowEx() instead of an incorrect
	attempt to calculate it ourselves. Fix by John Ehresman. (#323666)

	* gdkevents-win32.c: Make _gdk_win32_hrgn_to_region() non-static.

	* gdkprivate-win32.h: Declare it.
This commit is contained in:
Tor Lillqvist
2006-01-02 00:45:39 +00:00
committed by Tor Lillqvist
parent 36a2bde0d1
commit 53e2c08380
5 changed files with 81 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
gdk/win32/gdkgeometry-win32.c
View File

@ -108,9 +108,9 @@ gdk_window_scroll (GdkWindow *window,
GdkRegion *invalidate_region;
GdkWindowImplWin32 *impl;
GdkWindowObject *obj;
GdkRectangle dest_rect;
GList *tmp_list;
GdkWindowParentPos parent_pos;
HRGN native_invalidate_region;
g_return_if_fail (GDK_IS_WINDOW (window));
@ -130,22 +130,6 @@ gdk_window_scroll (GdkWindow *window,
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_compute_parent_pos (impl, &parent_pos);
parent_pos.x += obj->x;
@ -156,10 +140,13 @@ gdk_window_scroll (GdkWindow *window,
gdk_window_tmp_unset_bg (window);
if (!ScrollWindowEx (GDK_WINDOW_HWND (window),
dx, dy, NULL, NULL,
NULL, NULL, SW_SCROLLCHILDREN))
WIN32_API_FAILED ("ScrollWindowEx");
native_invalidate_region = CreateRectRgn (0, 0, 0, 0);
if (native_invalidate_region == NULL)
WIN32_API_FAILED ("CreateRectRgn");
API_CALL (ScrollWindowEx, (GDK_WINDOW_HWND (window),
dx, dy, NULL, NULL,
native_invalidate_region, NULL, SW_SCROLLCHILDREN));
if (impl->position_info.no_bg)
gdk_window_tmp_reset_bg (window);
@ -173,8 +160,15 @@ gdk_window_scroll (GdkWindow *window,
tmp_list = tmp_list->next;
}
gdk_window_invalidate_region (window, invalidate_region, TRUE);
gdk_region_destroy (invalidate_region);
if (native_invalidate_region != NULL)
{
invalidate_region = _gdk_win32_hrgn_to_region (native_invalidate_region);
gdk_region_offset (invalidate_region, impl->position_info.x_offset,
impl->position_info.y_offset);
gdk_window_invalidate_region (window, invalidate_region, TRUE);
gdk_region_destroy (invalidate_region);
GDI_CALL (DeleteObject, (native_invalidate_region));
}
}
void