canvas/source/cairo/cairo_spritedevicehelper.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sal/config.h>
  21 #include <sal/log.hxx>
  22
  23 #include <vcl/cairo.hxx>
  24
  25 #include <cairo.h>
  26
  27 #include "cairo_devicehelper.hxx"
  28 #include "cairo_spritecanvas.hxx"
  29
  30 using namespace ::cairo;
  31 using namespace ::com::sun::star;
  32
  33 namespace cairocanvas
  34 {
  35
  36     SpriteDeviceHelper::SpriteDeviceHelper() :
  37         mpSpriteCanvas( nullptr ),
  38         mbFullScreen( false )
  39     {}
  40
  41     void SpriteDeviceHelper::init( vcl::Window&                   rOutputWindow,
  42                                    SpriteCanvas&             rSpriteCanvas,
  43                                    const ::basegfx::B2ISize& rSize,
  44                                    bool                      bFullscreen )
  45     {
  46         DeviceHelper::init(rSpriteCanvas,
  47                            *rOutputWindow.GetOutDev());
  48
  49         mpSpriteCanvas = &rSpriteCanvas;
  50         mbFullScreen = bFullscreen;
  51
  52         setSize( rSize );
  53     }
  54
  55     void SpriteDeviceHelper::disposing()
  56     {
  57         // release all references
  58         mpBufferSurface.reset();
  59         mpSpriteCanvas = nullptr;
  60     }
  61
  62     bool SpriteDeviceHelper::showBuffer( bool, bool )
  63     {
  64         SAL_WARN("canvas.cairo", "showBuffer Not supposed to be called, handled by SpriteCanvas");
  65         return false;
  66     }
  67
  68     bool SpriteDeviceHelper::switchBuffer( bool, bool )
  69     {
  70         SAL_WARN("canvas.cairo", "showBuffer Not supposed to be called, handled by SpriteCanvas");
  71         return false;
  72     }
  73
  74     uno::Any SpriteDeviceHelper::isAccelerated() const
  75     {
  76         return css::uno::Any(true);
  77     }
  78
  79     uno::Any SpriteDeviceHelper::getDeviceHandle() const
  80     {
  81         return DeviceHelper::getDeviceHandle();
  82     }
  83
  84     uno::Any SpriteDeviceHelper::getSurfaceHandle() const
  85     {
  86         return DeviceHelper::getSurfaceHandle();
  87     }
  88
  89     void SpriteDeviceHelper::setSize( const ::basegfx::B2ISize& rSize )
  90     {
  91         SAL_INFO(
  92             "canvas.cairo",
  93             "device size " << rSize.getWidth() << " x " << rSize.getHeight());
  94
  95         if( !mpSpriteCanvas )
  96             return; // disposed
  97
  98         DeviceHelper::setSize(rSize);
  99
 100         if( mpBufferSurface && maSize != rSize )
 101             mpBufferSurface.reset();
 102         if( !mpBufferSurface )
 103             mpBufferSurface = getWindowSurface()->getSimilar(
 104                 CAIRO_CONTENT_COLOR,
 105                 rSize.getWidth(), rSize.getHeight() );
 106
 107         if( maSize != rSize )
 108             maSize = rSize;
 109
 110         mpSpriteCanvas->setSizePixel( maSize );
 111     }
 112
 113
 114     void SpriteDeviceHelper::notifySizeUpdate( const awt::Rectangle& rBounds )
 115     {
 116         setSize( ::basegfx::B2ISize(rBounds.Width, rBounds.Height) );
 117     }
 118
 119     SurfaceSharedPtr const & SpriteDeviceHelper::getWindowSurface() const
 120     {
 121         return DeviceHelper::getSurface();
 122     }
 123
 124     SurfaceSharedPtr SpriteDeviceHelper::createSurface( const ::basegfx::B2ISize& rSize, int aContent )
 125     {
 126         if( mpBufferSurface )
 127             return mpBufferSurface->getSimilar( aContent, rSize.getWidth(), rSize.getHeight() );
 128
 129         return SurfaceSharedPtr();
 130     }
 131
 132     SurfaceSharedPtr SpriteDeviceHelper::createSurface( BitmapSystemData const & rData, const Size& rSize )
 133     {
 134         OutputDevice *pDevice = getOutputDevice();
 135         if (pDevice)
 136             return pDevice->CreateBitmapSurface(rData, rSize);
 137         return SurfaceSharedPtr();
 138     }
 139
 140     /** SpriteDeviceHelper::flush  Flush the platform native window
 141      *
 142      * Flushes the window by using the internally stored mpSysData.
 143      *
 144      **/
 145     void SpriteDeviceHelper::flush()
 146     {
 147         SurfaceSharedPtr pWinSurface=getWindowSurface();
 148         if( pWinSurface )
 149             pWinSurface->flush();
 150     }
 151 }
 152
 153 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */