canvas/source/cairo/cairo_canvascustomsprite.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 <basegfx/point/b2dpoint.hxx>
  24 #include <cppuhelper/supportsservice.hxx>
  25 #include <comphelper/diagnose_ex.hxx>
  26
  27 #include <canvas/canvastools.hxx>
  28 #include <cairo.h>
  29
  30 #include "cairo_canvascustomsprite.hxx"
  31 #include "cairo_spritecanvas.hxx"
  32
  33
  34 using namespace ::cairo;
  35 using namespace ::com::sun::star;
  36
  37 namespace cairocanvas
  38 {
  39     CanvasCustomSprite::CanvasCustomSprite( const css::geometry::RealSize2D&   rSpriteSize,
  40                                             const SpriteCanvasRef&                          rRefDevice ) :
  41         mpSpriteCanvas( rRefDevice ),
  42         maSize( ::canvas::tools::roundUp( rSpriteSize.Width ),
  43                 ::canvas::tools::roundUp( rSpriteSize.Height ) )
  44     {
  45         ENSURE_OR_THROW( rRefDevice,
  46                           "CanvasCustomSprite::CanvasCustomSprite(): Invalid sprite canvas" );
  47
  48         SAL_INFO( "canvas.cairo", "sprite size: " << ::canvas::tools::roundUp( rSpriteSize.Width ) << ", " << ::canvas::tools::roundUp( rSpriteSize.Height ));
  49
  50         mpBufferSurface = mpSpriteCanvas->createSurface( maSize, CAIRO_CONTENT_COLOR_ALPHA );
  51
  52         maCanvasHelper.init( maSize,
  53                              *rRefDevice,
  54                              rRefDevice.get() );
  55         maCanvasHelper.setSurface( mpBufferSurface, true );
  56
  57         maSpriteHelper.init( rSpriteSize,
  58                              rRefDevice );
  59         maSpriteHelper.setSurface( mpBufferSurface );
  60
  61         // clear sprite to 100% transparent
  62         maCanvasHelper.clear();
  63     }
  64
  65     void CanvasCustomSprite::disposeThis()
  66     {
  67         ::osl::MutexGuard aGuard( m_aMutex );
  68
  69         mpSpriteCanvas.clear();
  70         mpBufferSurface.reset();
  71
  72         // forward to parent
  73         CanvasCustomSpriteBaseT::disposeThis();
  74     }
  75
  76     void CanvasCustomSprite::redraw( const CairoSharedPtr& pCairo,
  77                                      bool                  bBufferedUpdate ) const
  78     {
  79         ::osl::MutexGuard aGuard( m_aMutex );
  80
  81         redraw( pCairo, maSpriteHelper.getPosPixel(), bBufferedUpdate );
  82     }
  83
  84     void CanvasCustomSprite::redraw( const CairoSharedPtr&      pCairo,
  85                                      const ::basegfx::B2DPoint& rOrigOutputPos,
  86                                      bool                       bBufferedUpdate ) const
  87     {
  88         ::osl::MutexGuard aGuard( m_aMutex );
  89
  90         maSpriteHelper.redraw( pCairo,
  91                                rOrigOutputPos,
  92                                mbSurfaceDirty,
  93                                bBufferedUpdate );
  94
  95         mbSurfaceDirty = false;
  96     }
  97
  98     bool CanvasCustomSprite::repaint( const SurfaceSharedPtr&       pSurface,
  99                                       const rendering::ViewState&   viewState,
 100                                       const rendering::RenderState& renderState )
 101     {
 102         return maCanvasHelper.repaint( pSurface, viewState, renderState );
 103     }
 104
 105     SurfaceSharedPtr CanvasCustomSprite::getSurface()
 106     {
 107         return mpBufferSurface;
 108     }
 109
 110     SurfaceSharedPtr CanvasCustomSprite::createSurface( const ::basegfx::B2ISize& rSize, int aContent )
 111     {
 112         return mpSpriteCanvas->createSurface(rSize,aContent);
 113     }
 114
 115     SurfaceSharedPtr CanvasCustomSprite::createSurface( ::Bitmap& rBitmap )
 116     {
 117         return mpSpriteCanvas->createSurface(rBitmap);
 118     }
 119
 120     SurfaceSharedPtr CanvasCustomSprite::changeSurface()
 121     {
 122         SAL_INFO( "canvas.cairo", "replacing sprite background surface");
 123
 124         mpBufferSurface = mpSpriteCanvas->createSurface( maSize, CAIRO_CONTENT_COLOR );
 125         maSpriteHelper.setSurface( mpBufferSurface );
 126
 127         return mpBufferSurface;
 128     }
 129
 130     OutputDevice* CanvasCustomSprite::getOutputDevice()
 131     {
 132         return mpSpriteCanvas->getOutputDevice();
 133     }
 134
 135     OUString SAL_CALL CanvasCustomSprite::getImplementationName()
 136     {
 137         return u"CairoCanvas.CanvasCustomSprite"_ustr;
 138     }
 139
 140     sal_Bool SAL_CALL CanvasCustomSprite::supportsService( const OUString& ServiceName )
 141     {
 142         return cppu::supportsService( this, ServiceName );
 143     }
 144
 145     uno::Sequence< OUString > SAL_CALL CanvasCustomSprite::getSupportedServiceNames()
 146     {
 147         return { u"com.sun.star.rendering.CanvasCustomSprite"_ustr };
 148     }
 149 }
 150
 151 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */