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      1 /*
      2  Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
      3 
      4  This library is free software; you can redistribute it and/or
      5  modify it under the terms of the GNU Library General Public
      6  License as published by the Free Software Foundation; either
      7  version 2 of the License, or (at your option) any later version.
      8 
      9  This library is distributed in the hope that it will be useful,
     10  but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  Library General Public License for more details.
     13 
     14  You should have received a copy of the GNU Library General Public License
     15  along with this library; see the file COPYING.LIB.  If not, write to
     16  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  Boston, MA 02110-1301, USA.
     18  */
     19 
     20 #include "texmap/TextureMapper.h"
     21 
     22 #ifndef TextureMapperQt_h
     23 #define TextureMapperQt_h
     24 
     25 namespace WebCore {
     26 
     27 class BitmapTextureQt : public BitmapTexture {
     28     friend class TextureMapperQt;
     29 public:
     30     BitmapTextureQt();
     31     ~BitmapTextureQt() { destroy(); }
     32     virtual void destroy();
     33     virtual IntSize size() const { return IntSize(m_pixmap.width(), m_pixmap.height()); }
     34     virtual void reset(const IntSize&, bool opaque);
     35     virtual PlatformGraphicsContext* beginPaint(const IntRect& dirtyRect);
     36     virtual void endPaint();
     37     virtual void setContentsToImage(Image*);
     38     virtual bool save(const String& path);
     39     virtual bool isValid() const { return !m_pixmap.isNull() || !m_image.isNull(); }
     40     IntRect sourceRect() const { return IntRect(0, 0, contentSize().width(), contentSize().height()); }
     41     virtual void pack();
     42     virtual void unpack();
     43     virtual bool isPacked() const { return m_isPacked; }
     44 
     45 private:
     46     QPainter m_painter;
     47     QPixmap m_pixmap;
     48     QImage m_image;
     49     bool m_isPacked;
     50 };
     51 
     52 class TextureMapperQt : public TextureMapper {
     53 public:
     54     TextureMapperQt();
     55 
     56     virtual void drawTexture(const BitmapTexture& texture, const IntRect& targetRect, const TransformationMatrix& matrix, float opacity, const BitmapTexture* maskTexture);
     57     virtual void bindSurface(BitmapTexture* surface);
     58     virtual void setClip(const IntRect&);
     59     virtual void setGraphicsContext(GraphicsContext*);
     60     virtual bool allowSurfaceForRoot() const { return false; }
     61     virtual PassRefPtr<BitmapTexture> createTexture();
     62 
     63     static void initialize(QPainter* painter)
     64     {
     65         painter->setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform, false);
     66     }
     67 
     68     static PassOwnPtr<TextureMapper> create() { return new TextureMapperQt; }
     69 
     70 private:
     71     QPainter* m_painter;
     72     RefPtr<BitmapTextureQt> m_currentSurface;
     73 };
     74 
     75 }
     76 #endif
     77