canvas/source/tools/cachedprimitivebase.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
  21 #include <canvas/debug.hxx>
  22 #include <canvas/base/cachedprimitivebase.hxx>
  23
  24 #include <com/sun/star/rendering/RepaintResult.hpp>
  25 #include <cppuhelper/supportsservice.hxx>
  26
  27 #include <basegfx/matrix/b2dhommatrix.hxx>
  28 #include <basegfx/tools/canvastools.hxx>
  29
  30 using namespace ::com::sun::star;
  31
  32 namespace canvas
  33 {
  34     CachedPrimitiveBase::CachedPrimitiveBase( const rendering::ViewState&                   rUsedViewState,
  35                                               const uno::Reference< rendering::XCanvas >&   rTarget,
  36                                               bool                                          bFailForChangedViewTransform ) :
  37         CachedPrimitiveBase_Base( m_aMutex ),
  38         maUsedViewState( rUsedViewState ),
  39         mxTarget( rTarget ),
  40         mbFailForChangedViewTransform( bFailForChangedViewTransform )
  41     {
  42     }
  43
  44     CachedPrimitiveBase::~CachedPrimitiveBase()
  45     {
  46     }
  47
  48     void SAL_CALL CachedPrimitiveBase::disposing()
  49     {
  50         ::osl::MutexGuard aGuard( m_aMutex );
  51
  52         maUsedViewState.Clip.clear();
  53         mxTarget.clear();
  54     }
  55
  56     sal_Int8 SAL_CALL CachedPrimitiveBase::redraw( const rendering::ViewState& aState ) throw (lang::IllegalArgumentException, uno::RuntimeException, std::exception)
  57     {
  58         ::basegfx::B2DHomMatrix aUsedTransformation;
  59         ::basegfx::B2DHomMatrix aNewTransformation;
  60
  61         ::basegfx::unotools::homMatrixFromAffineMatrix( aUsedTransformation,
  62                                                         maUsedViewState.AffineTransform );
  63         ::basegfx::unotools::homMatrixFromAffineMatrix( aNewTransformation,
  64                                                         aState.AffineTransform );
  65
  66         const bool bSameViewTransforms( aUsedTransformation == aNewTransformation );
  67
  68         if( mbFailForChangedViewTransform &&
  69             !bSameViewTransforms )
  70         {
  71             // differing transformations, don't try to draft the
  72             // output, just plain fail here.
  73             return rendering::RepaintResult::FAILED;
  74         }
  75
  76         return doRedraw( aState,
  77                          maUsedViewState,
  78                          mxTarget,
  79                          bSameViewTransforms );
  80     }
  81
  82     OUString SAL_CALL CachedPrimitiveBase::getImplementationName(  ) throw (uno::RuntimeException, std::exception)
  83     {
  84         return OUString("canvas::CachedPrimitiveBase");
  85     }
  86
  87     sal_Bool SAL_CALL CachedPrimitiveBase::supportsService( const OUString& ServiceName ) throw (uno::RuntimeException, std::exception)
  88     {
  89         return cppu::supportsService(this, ServiceName);
  90     }
  91
  92     uno::Sequence< OUString > SAL_CALL CachedPrimitiveBase::getSupportedServiceNames(  ) throw (uno::RuntimeException, std::exception)
  93     {
  94         uno::Sequence< OUString > aRet(1);
  95         aRet[0] = "com.sun.star.rendering.CachedBitmap";
  96
  97         return aRet;
  98     }
  99 }
 100
 101 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */