Home | History | Annotate | Download | only in layers
      1 /*
      2  * Copyright 2012, The Android Open Source Project
      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  *  * Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  *  * 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 THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef BaseLayerAndroid_h
     27 #define BaseLayerAndroid_h
     28 
     29 #include "Color.h"
     30 #include "LayerAndroid.h"
     31 
     32 namespace WebCore {
     33 
     34 class Image;
     35 class RenderLayerCompositor;
     36 class RenderStyle;
     37 class BackgroundImagePositioning;
     38 
     39 class BaseLayerAndroid : public LayerAndroid {
     40 public:
     41     BaseLayerAndroid(LayerContent* content);
     42     virtual SubclassType subclassType() const { return LayerAndroid::BaseLayer; }
     43     virtual void getLocalTransform(SkMatrix* matrix) const;
     44     virtual const TransformationMatrix* drawTransform() const { return 0; }
     45     virtual bool needsTexture() { return content(); }
     46     virtual IFrameLayerAndroid* updatePosition(SkRect viewport,
     47                                                IFrameLayerAndroid* parentIframeLayer);
     48     void updatePositionsRecursive(const SkRect& visibleContentRect);
     49     void setBackgroundColor(Color& color) { m_color = color; }
     50     Color getBackgroundColor() { return m_color; }
     51 
     52 private:
     53     // TODO: move to SurfaceCollection.
     54     Color m_color;
     55     bool m_positionsCalculated;
     56 };
     57 
     58 class ForegroundBaseLayerAndroid : public LayerAndroid {
     59 public:
     60     ForegroundBaseLayerAndroid(LayerContent* content);
     61     virtual SubclassType subclassType() const { return LayerAndroid::ForegroundBaseLayer; }
     62 
     63     virtual bool needsTexture() { return false; }
     64 };
     65 
     66 class FixedBackgroundImageLayerAndroid : public LayerAndroid {
     67 public:
     68     FixedBackgroundImageLayerAndroid(PassRefPtr<RenderStyle> style, int w, int h);
     69     FixedBackgroundImageLayerAndroid(const FixedBackgroundImageLayerAndroid& layer);
     70     virtual ~FixedBackgroundImageLayerAndroid();
     71     virtual LayerAndroid* copy() const { return new FixedBackgroundImageLayerAndroid(*this); }
     72     virtual bool needsTexture() { return true; }
     73     virtual SubclassType subclassType() const { return LayerAndroid::FixedBackgroundImageLayer; }
     74     virtual bool drawGL(bool layerTilesDisabled);
     75     static Image* GetCachedImage(PassRefPtr<RenderStyle> style);
     76 
     77 private:
     78     bool drawSimpleQuad(ImageTexture* imageTexture,
     79                         BackgroundImagePositioning* position,
     80                         const IntPoint& repeatTimes, const FloatPoint& startPoint,
     81                         const FloatPoint& origin, const Color& backgroundColor);
     82     void drawRepeatedGrid(ImageTexture* imageTexture,
     83                           BackgroundImagePositioning* position,
     84                           const IntPoint& repeatTimes, const FloatPoint& startPoint,
     85                           const FloatPoint& origin, const Color& backgroundColor);
     86     int m_width;
     87     int m_height;
     88 };
     89 
     90 } // namespace WebCore
     91 
     92 #endif //BaseLayerAndroid_h
     93