third_party/WebKit/Source/platform/graphics/GradientGeneratedImage.cpp

   1 /*
   2  * Copyright (C) 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
  14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
  17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  23  * THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "platform/graphics/GradientGeneratedImage.h"
  28
  29 #include "platform/geometry/FloatRect.h"
  30 #include "platform/graphics/GraphicsContext.h"
  31
  32 namespace blink {
  33
  34 void GradientGeneratedImage::draw(SkCanvas* canvas, const SkPaint& paint, const FloatRect& destRect, const FloatRect& srcRect, RespectImageOrientationEnum, ImageClampingMode)
  35 {
  36     SkAutoCanvasRestore ar(canvas, true);
  37     canvas->clipRect(destRect);
  38     canvas->translate(destRect.x(), destRect.y());
  39     if (destRect.size() != srcRect.size())
  40         canvas->scale(destRect.width() / srcRect.width(), destRect.height() / srcRect.height());
  41     canvas->translate(-srcRect.x(), -srcRect.y());
  42     SkPaint gradientPaint(paint);
  43     gradientPaint.setShader(m_gradient->shader());
  44     canvas->drawRect(SkRect::MakeWH(m_size.width(), m_size.height()), gradientPaint);
  45 }
  46
  47 void GradientGeneratedImage::drawTile(GraphicsContext* context, const FloatRect& srcRect)
  48 {
  49     context->setFillGradient(m_gradient);
  50     context->fillRect(srcRect);
  51 }
  52
  53 } // namespace blink