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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/gfx/platform_canvas_mac.h"
#include "base/gfx/bitmap_platform_device_mac.h"
#include "base/logging.h"
namespace gfx {
PlatformCanvasMac::PlatformCanvasMac() : SkCanvas() {
}
PlatformCanvasMac::PlatformCanvasMac(int width, int height, bool is_opaque)
: SkCanvas() {
initialize(width, height, is_opaque, NULL);
}
PlatformCanvasMac::PlatformCanvasMac(int width,
int height,
bool is_opaque,
CGContextRef context)
: SkCanvas() {
initialize(width, height, is_opaque, context);
}
PlatformCanvasMac::~PlatformCanvasMac() {
}
void PlatformCanvasMac::initialize(int width,
int height,
bool is_opaque,
CGContextRef context) {
SkDevice* device =
createPlatformDevice(width, height, is_opaque, context);
setDevice(device);
device->unref(); // was created with refcount 1, and setDevice also refs
}
CGContextRef PlatformCanvasMac::beginPlatformPaint() {
return getTopPlatformDevice().GetBitmapContext();
}
void PlatformCanvasMac::endPlatformPaint() {
// flushing will be done in onAccessBitmap
}
PlatformDeviceMac& PlatformCanvasMac::getTopPlatformDevice() const {
// All of our devices should be our special PlatformDeviceMac.
SkCanvas::LayerIter iter(const_cast<PlatformCanvasMac*>(this), false);
return *static_cast<PlatformDeviceMac*>(iter.device());
}
SkDevice* PlatformCanvasMac::createDevice(SkBitmap::Config config,
int width,
int height,
bool is_opaque, bool isForLayer) {
DCHECK(config == SkBitmap::kARGB_8888_Config);
return createPlatformDevice(width, height, is_opaque, NULL);
}
SkDevice* PlatformCanvasMac::createPlatformDevice(int width,
int height,
bool is_opaque,
CGContextRef context) {
SkDevice* device = BitmapPlatformDeviceMac::Create(context, width, height,
is_opaque);
return device;
}
SkDevice* PlatformCanvasMac::setBitmapDevice(const SkBitmap&) {
NOTREACHED();
return NULL;
}
} // namespace gfx
|
