Code drop from //branches/cupcake/...@124589

1 files changed, 68 insertions, 0 deletions

diff --git a/WebCore/platform/graphics/GeneratedImage.cpp b/WebCore/platform/graphics/GeneratedImage.cpp
new file mode 100644
index 0000000..5e50959
--- /dev/null
+++ b/WebCore/platform/graphics/GeneratedImage.cpp
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2008 Apple Computer, Inc.  All rights reserved.
+ *
+ * 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"
+#include "GeneratedImage.h"
+
+#include "FloatRect.h"
+#include "GraphicsContext.h"
+#include "ImageBuffer.h"
+
+using namespace std;
+
+namespace WebCore {
+
+void GeneratedImage::draw(GraphicsContext* context, const FloatRect& dstRect, const FloatRect& srcRect, CompositeOperator compositeOp)
+{
+    context->save();
+    context->setCompositeOperation(compositeOp);
+    context->clip(dstRect);
+    context->translate(dstRect.x(), dstRect.y());
+    if (dstRect.size() != srcRect.size())
+        context->scale(FloatSize(dstRect.width() / srcRect.width(), dstRect.height() / srcRect.height()));
+    context->translate(-srcRect.x(), -srcRect.y());
+    context->fillRect(FloatRect(FloatPoint(), m_size), *m_generator.get());
+    context->restore();
+}
+
+void GeneratedImage::drawPattern(GraphicsContext* context, const FloatRect& srcRect, const AffineTransform& patternTransform,
+                                 const FloatPoint& phase, CompositeOperator compositeOp, const FloatRect& destRect)
+{
+    // Create a BitmapImage and call drawPattern on it.
+    auto_ptr<ImageBuffer> imageBuffer = ImageBuffer::create(m_size, false);
+    ASSERT(imageBuffer.get());
+    
+    // Fill with the gradient.
+    GraphicsContext* graphicsContext = imageBuffer->context();
+    graphicsContext->fillRect(FloatRect(FloatPoint(), m_size), *m_generator.get());
+    
+    // Grab the final image from the image buffer.
+    Image* bitmap = imageBuffer->image();
+    
+    // Now just call drawTiled on that image.
+    bitmap->drawPattern(context, srcRect, patternTransform, phase, compositeOp, destRect);
+}
+
+}