2 * Copyright (C) 2006 Apple Computer, Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
21 #include "platform/mac/LocalCurrentGraphicsContext.h"
22 #include "platform/mac/ThemeMac.h"
24 #include <AppKit/NSGraphicsContext.h>
25 #include "platform/graphics/GraphicsContext.h"
26 #include "platform_canvas.h"
30 LocalCurrentGraphicsContext::LocalCurrentGraphicsContext(GraphicsContext* graphicsContext, IntRect dirtyRect)
31 : m_didSetGraphicsContext(false)
32 , m_skiaBitLocker(graphicsContext->canvas(),
33 ThemeMac::inflateRectForAA(dirtyRect),
34 graphicsContext->deviceScaleFactor())
36 m_savedGraphicsContext = graphicsContext;
37 graphicsContext->save();
39 CGContextRef cgContext = this->cgContext();
40 if (cgContext == [[NSGraphicsContext currentContext] graphicsPort]) {
41 m_savedNSGraphicsContext = 0;
45 m_savedNSGraphicsContext = [[NSGraphicsContext currentContext] retain];
46 NSGraphicsContext* newContext = [NSGraphicsContext graphicsContextWithGraphicsPort:cgContext flipped:YES];
47 [NSGraphicsContext setCurrentContext:newContext];
48 m_didSetGraphicsContext = true;
51 LocalCurrentGraphicsContext::~LocalCurrentGraphicsContext()
53 if (m_didSetGraphicsContext) {
54 [NSGraphicsContext setCurrentContext:m_savedNSGraphicsContext];
55 [m_savedNSGraphicsContext release];
58 m_savedGraphicsContext->restore();
61 CGContextRef LocalCurrentGraphicsContext::cgContext()
63 // This synchronizes the CGContext to reflect the current SkCanvas state.
64 // The implementation may not return the same CGContext each time.
65 CGContextRef cgContext = m_skiaBitLocker.cgContext();