blob: 5f1d07c675173a543e308012557893988d333088 (
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
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
79
80
|
/*
* Copyright (C) 2006 Apple Computer, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "LocalCurrentGraphicsContext.h"
#include <AppKit/NSGraphicsContext.h>
#if USE(SKIA)
#include "platform_canvas.h"
#include "PlatformContextSkia.h"
#endif
namespace WebCore {
LocalCurrentGraphicsContext::LocalCurrentGraphicsContext(GraphicsContext* graphicsContext)
#if USE(SKIA)
: m_skiaBitLocker(graphicsContext->platformContext()->canvas())
#endif
{
m_savedGraphicsContext = graphicsContext;
graphicsContext->save();
CGContextRef cgContext = this->cgContext();
if (cgContext == [[NSGraphicsContext currentContext] graphicsPort]) {
m_savedNSGraphicsContext = 0;
return;
}
m_savedNSGraphicsContext = [[NSGraphicsContext currentContext] retain];
NSGraphicsContext* newContext = [NSGraphicsContext graphicsContextWithGraphicsPort:cgContext flipped:YES];
[NSGraphicsContext setCurrentContext:newContext];
}
LocalCurrentGraphicsContext::~LocalCurrentGraphicsContext()
{
m_savedGraphicsContext->restore();
if (m_savedNSGraphicsContext) {
[NSGraphicsContext setCurrentContext:m_savedNSGraphicsContext];
[m_savedNSGraphicsContext release];
}
}
CGContextRef LocalCurrentGraphicsContext::cgContext()
{
#if USE(SKIA)
// This synchronizes the CGContext to reflect the current SkCanvas state.
// The implementation may not return the same CGContext each time.
CGContextRef cgContext = m_skiaBitLocker.cgContext();
#else
CGContextRef cgContext = m_savedGraphicsContext->platformContext();
#endif
return cgContext;
}
#if USE(SKIA)
ContextContainer::ContextContainer(GraphicsContext* graphicsContext)
: m_skiaBitLocker(graphicsContext->platformContext()->canvas())
{
}
#endif
}
|
