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-rw-r--r--src/3rdparty/webkit/WebCore/platform/DragImage.cpp74
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diff --git a/src/3rdparty/webkit/WebCore/platform/DragImage.cpp b/src/3rdparty/webkit/WebCore/platform/DragImage.cpp
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+/*
+ * Copyright (C) 2007 Apple 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 "DragImage.h"
+#include "DragController.h"
+
+#include "Frame.h"
+
+namespace WebCore {
+
+DragImageRef fitDragImageToMaxSize(DragImageRef image, const IntSize& srcSize, const IntSize& size)
+{
+ float heightResizeRatio = 0.0f;
+ float widthResizeRatio = 0.0f;
+ float resizeRatio = -1.0f;
+ IntSize originalSize = dragImageSize(image);
+
+ if (srcSize.width() > size.width()) {
+ widthResizeRatio = size.width() / (float)srcSize.width();
+ resizeRatio = widthResizeRatio;
+ }
+
+ if (srcSize.height() > size.height()) {
+ heightResizeRatio = size.height() / (float)srcSize.height();
+ if ((resizeRatio < 0.0f) || (resizeRatio > heightResizeRatio))
+ resizeRatio = heightResizeRatio;
+ }
+
+ if (srcSize == originalSize)
+ return resizeRatio > 0.0f ? scaleDragImage(image, FloatSize(resizeRatio, resizeRatio)) : image;
+
+ // The image was scaled in the webpage so at minimum we must account for that scaling
+ float scalex = srcSize.width() / (float)originalSize.width();
+ float scaley = srcSize.height() / (float)originalSize.height();
+ if (resizeRatio > 0.0f) {
+ scalex *= resizeRatio;
+ scaley *= resizeRatio;
+ }
+
+ return scaleDragImage(image, FloatSize(scalex, scaley));
+}
+
+DragImageRef createDragImageForSelection(Frame* frame)
+{
+ DragImageRef image = frame->dragImageForSelection();
+ if (image)
+ dissolveDragImageToFraction(image, DragController::DragImageAlpha);
+ return image;
+}
+
+}