forked from AuroraMiddleware/gtk
d8192013f3
The Cairo implementation for the Macos backend uses a toplevel window with full transparency and a series of NSView to create opaque regions. This improves compositor performance because it allows the display server to avoid costly blends. However, we want to ensure we clip better when exposing the transparent region so that we only expose the shadows/corners as necessary.
38 lines
1.2 KiB
Objective-C
38 lines
1.2 KiB
Objective-C
/* GdkMacosCairoSubview.h
|
|
*
|
|
* Copyright © 2020 Red Hat, Inc.
|
|
*
|
|
* 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/>.
|
|
*
|
|
* SPDX-License-Identifier: LGPL-2.1-or-later
|
|
*/
|
|
|
|
#include <AppKit/AppKit.h>
|
|
|
|
#define GDK_IS_MACOS_CAIRO_SUBVIEW(obj) ((obj) && [obj isKindOfClass:[GdkMacosCairoSubview class]])
|
|
|
|
@interface GdkMacosCairoSubview : NSView
|
|
{
|
|
BOOL _isOpaque;
|
|
cairo_surface_t *cairoSurface;
|
|
cairo_region_t *clip;
|
|
}
|
|
|
|
-(void)setOpaque:(BOOL)opaque;
|
|
-(void)setCairoSurface:(cairo_surface_t *)cairoSurface
|
|
withDamage:(cairo_region_t *)region;
|
|
-(void)setClip:(cairo_region_t*)region;
|
|
|
|
@end
|