blob: 975b91f1ac9ea5ef65767100afc9316d03d162e7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
// SPDX-License-Identifier: GPL-2.0-or-later
#ifndef INKSCAPE_DISPLAY_DITHER_LOCK_H
#define INKSCAPE_DISPLAY_DITHER_LOCK_H
#include "drawing-context.h"
#include "cairo-utils.h"
namespace Inkscape {
/// RAII object for temporarily turning dithering on.
class DitherLock
{
public:
DitherLock(DrawingContext &dc, bool on)
: _cr(dc.rawTarget())
, _on(on)
{
if (_on) {
ink_cairo_set_dither(_cr, true);
}
}
~DitherLock()
{
if (_on) {
ink_cairo_set_dither(_cr, false);
}
}
private:
cairo_surface_t *_cr;
bool _on;
};
} // namespace Inkscape
#endif // INKSCAPE_DISPLAY_DITHER_LOCK_H
|