LCOV - code coverage report
Current view: top level - canvas/source/tools - surfaceproxy.cxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 1 38 2.6 %
Date: 2014-04-14 Functions: 2 7 28.6 %
Legend: Lines: hit not hit

          Line data    Source code
       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             : 
      21             : #include <boost/bind.hpp>
      22             : #include <basegfx/polygon/b2dpolygoncutandtouch.hxx>
      23             : #include <basegfx/polygon/b2dpolygontriangulator.hxx>
      24             : #include <basegfx/polygon/b2dpolypolygontools.hxx>
      25             : #include "surfaceproxy.hxx"
      26             : 
      27             : namespace canvas
      28             : {
      29             : 
      30             :     // SurfaceProxy::SurfaceProxy
      31             : 
      32             : 
      33           0 :     SurfaceProxy::SurfaceProxy( const canvas::IColorBufferSharedPtr& pBuffer,
      34             :                                 const PageManagerSharedPtr&          pPageManager ) :
      35             :         mpPageManager( pPageManager ),
      36             :         maSurfaceList(),
      37           0 :         mpBuffer( pBuffer )
      38             :     {
      39           0 :         const ::basegfx::B2ISize aImageSize(mpBuffer->getWidth(),mpBuffer->getHeight());
      40           0 :         const ::basegfx::B2ISize aPageSize(mpPageManager->getPageSize());
      41           0 :         const sal_Int32 aPageSizeX(aPageSize.getX());
      42           0 :         const sal_Int32 aPageSizeY(aPageSize.getY());
      43           0 :         const sal_Int32 aImageSizeX(aImageSize.getX());
      44           0 :         const sal_Int32 aImageSizeY(aImageSize.getY());
      45             : 
      46             :         // see if the size of the colorbuffer is larger than the size
      47             :         // of a single page. if this is the case we divide the
      48             :         // colorbuffer into as many surfaces as we need to get the
      49             :         // whole area distributed.  otherwise (the colorbuffer is
      50             :         // smaller than the size of a single page) we search for free
      51             :         // pages or create a new one.
      52             :         // the incoming image is too large to fit into a single
      53             :         // page.  strategy: we split the image into rectangular
      54             :         // areas that are as large as the maximum page size
      55             :         // dictates and follow the strategy for fitting images.
      56           0 :         size_t dwNumSurfaces(0);
      57           0 :         for(sal_Int32 y=0; y<aImageSizeY; y+=aPageSizeY)
      58           0 :             for(sal_Int32 x=0; x<aImageSizeX; x+=aPageSizeX)
      59           0 :                 ++dwNumSurfaces;
      60           0 :         maSurfaceList.reserve(dwNumSurfaces);
      61             : 
      62           0 :         for(sal_Int32 y=0; y<aImageSizeY; y+=aPageSizeY)
      63             :         {
      64           0 :             for(sal_Int32 x=0; x<aImageSizeX; x+=aPageSizeX)
      65             :             {
      66             :                 // the current surface is located at the position [x,y]
      67             :                 // and has the size [min(restx,pagesizex),min(resty,pagesizey)
      68           0 :                 ::basegfx::B2IPoint aOffset(x,y);
      69           0 :                 ::basegfx::B2ISize aSize( ::std::min( aImageSize.getX()-x,
      70           0 :                                                       aPageSize.getX() ),
      71           0 :                                           ::std::min( aImageSize.getY()-y,
      72           0 :                                                       aPageSize.getY() ) );
      73             : 
      74             :                 maSurfaceList.push_back(
      75             :                     SurfaceSharedPtr(
      76             :                         new Surface(
      77             :                             mpPageManager,
      78             :                             mpBuffer,
      79             :                             aOffset,
      80           0 :                             aSize)));
      81           0 :             }
      82           0 :         }
      83           0 :     }
      84             : 
      85             : 
      86             :     // SurfaceProxy::setColorBufferDirty
      87             : 
      88             : 
      89           0 :     void SurfaceProxy::setColorBufferDirty()
      90             :     {
      91             :         ::std::for_each( maSurfaceList.begin(),
      92             :                          maSurfaceList.end(),
      93           0 :                          ::boost::mem_fn(&Surface::setColorBufferDirty));
      94           0 :     }
      95             : 
      96             : 
      97             :     // SurfaceProxy::draw
      98             : 
      99             : 
     100           0 :     bool SurfaceProxy::draw( double                         fAlpha,
     101             :                              const ::basegfx::B2DPoint&     rPos,
     102             :                              const ::basegfx::B2DHomMatrix& rTransform )
     103             :     {
     104             :         ::std::for_each( maSurfaceList.begin(),
     105             :                          maSurfaceList.end(),
     106             :                          ::boost::bind( &Surface::draw,
     107             :                                         _1,
     108             :                                         fAlpha,
     109             :                                         ::boost::cref(rPos),
     110           0 :                                         ::boost::cref(rTransform)));
     111             : 
     112           0 :         return true;
     113             :     }
     114             : 
     115             : 
     116             :     // SurfaceProxy::draw
     117             : 
     118             : 
     119           0 :     bool SurfaceProxy::draw( double                         fAlpha,
     120             :                              const ::basegfx::B2DPoint&     rPos,
     121             :                              const ::basegfx::B2DRange&     rArea,
     122             :                              const ::basegfx::B2DHomMatrix& rTransform )
     123             :     {
     124             :         ::std::for_each( maSurfaceList.begin(),
     125             :                          maSurfaceList.end(),
     126             :                          ::boost::bind(&Surface::drawRectangularArea,
     127             :                                        _1,
     128             :                                        fAlpha,
     129             :                                        ::boost::cref(rPos),
     130             :                                        ::boost::cref(rArea),
     131           0 :                                        ::boost::cref(rTransform)));
     132             : 
     133           0 :         return true;
     134             :     }
     135             : 
     136             : 
     137             :     // SurfaceProxy::draw
     138             : 
     139             : 
     140           0 :     bool SurfaceProxy::draw( double                           fAlpha,
     141             :                              const ::basegfx::B2DPoint&       rPos,
     142             :                              const ::basegfx::B2DPolyPolygon& rClipPoly,
     143             :                              const ::basegfx::B2DHomMatrix&   rTransform )
     144             :     {
     145             :         const ::basegfx::B2DPolygon& rTriangulatedPolygon(
     146           0 :             ::basegfx::triangulator::triangulate(rClipPoly));
     147             : 
     148             : #if OSL_DEBUG_LEVEL > 2
     149             :         // dump polygons
     150             :         OSL_TRACE( "Original clip polygon: %s\n"
     151             :                    "Triangulated polygon: %s\n",
     152             :                    OUStringToOString(
     153             :                        basegfx::tools::exportToSvgD( rClipPoly, true, true, false ),
     154             :                        RTL_TEXTENCODING_ASCII_US).getStr(),
     155             :                    OUStringToOString(
     156             :                        basegfx::tools::exportToSvgD(
     157             :                            basegfx::B2DPolyPolygon(rTriangulatedPolygon), true, true, false ),
     158             :                        RTL_TEXTENCODING_ASCII_US).getStr() );
     159             : #endif
     160             : 
     161             :         ::std::for_each( maSurfaceList.begin(),
     162             :                          maSurfaceList.end(),
     163             :                          ::boost::bind(&Surface::drawWithClip,
     164             :                                        _1,
     165             :                                        fAlpha,
     166             :                                        ::boost::cref(rPos),
     167             :                                        ::boost::cref(rTriangulatedPolygon),
     168           0 :                                        ::boost::cref(rTransform)));
     169             : 
     170           0 :         return true;
     171             :     }
     172           3 : }
     173             : 
     174             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

Generated by: LCOV version 1.10