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-rw-r--r--WebCore/svg/graphics/cg/CgSupport.cpp100
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diff --git a/WebCore/svg/graphics/cg/CgSupport.cpp b/WebCore/svg/graphics/cg/CgSupport.cpp
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--- a/WebCore/svg/graphics/cg/CgSupport.cpp
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-/*
- * Copyright (C) 2005 Apple Computer, Inc. All rights reserved.
- * 2006 Rob Buis <buis@kde.org>
- * 2008 Nikolas Zimmermann <zimmermann@kde.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-
-#include "config.h"
-
-#if ENABLE(SVG)
-#include "CgSupport.h"
-
-#include <ApplicationServices/ApplicationServices.h>
-#include "FloatConversion.h"
-#include "GraphicsContext.h"
-#include "RenderStyle.h"
-#include "SVGPaintServer.h"
-#include "SVGRenderStyle.h"
-#include <wtf/Assertions.h>
-
-namespace WebCore {
-
-CGContextRef scratchContext()
-{
- static CGContextRef scratch = 0;
- if (!scratch) {
- CFMutableDataRef empty = CFDataCreateMutable(NULL, 0);
- CGDataConsumerRef consumer = CGDataConsumerCreateWithCFData(empty);
- scratch = CGPDFContextCreate(consumer, NULL, NULL);
- CGDataConsumerRelease(consumer);
- CFRelease(empty);
-
- CGFloat black[4] = {0, 0, 0, 1};
- CGContextSetFillColor(scratch, black);
- CGContextSetStrokeColor(scratch, black);
- }
- return scratch;
-}
-
-FloatRect strokeBoundingBox(const Path& path, RenderStyle* style, const RenderObject* object)
- {
- // the bbox might grow if the path is stroked.
- // and CGPathGetBoundingBox doesn't support that, so we'll have
- // to make an alternative call...
-
- // FIXME: since this is mainly used to decide what to repaint,
- // perhaps it would be sufficient to just outset the fill bbox by
- // the stroke width - that should be way cheaper and simpler than
- // what we do here.
-
- CGPathRef cgPath = path.platformPath();
-
- CGContextRef context = scratchContext();
- CGContextSaveGState(context);
-
- CGContextBeginPath(context);
- CGContextAddPath(context, cgPath);
-
- GraphicsContext gc(context);
- applyStrokeStyleToContext(&gc, style, object);
-
- CGContextReplacePathWithStrokedPath(context);
- if (CGContextIsPathEmpty(context)) {
- // CGContextReplacePathWithStrokedPath seems to fail to create a path sometimes, this is not well understood.
- // returning here prevents CG from logging to the console from CGContextGetPathBoundingBox
- CGContextRestoreGState(context);
- return FloatRect();
- }
-
- CGRect box = CGContextGetPathBoundingBox(context);
- CGContextRestoreGState(context);
-
- return FloatRect(box);
-}
-
-}
-
-#endif // ENABLE(SVG)
-