canvas/source/tools/cachedprimitivebase.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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   9  * This file incorporates work covered by the following license notice:
  10  *
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  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
  22 #include <basegfx/matrix/b2dhommatrix.hxx>
  23 #include <basegfx/utils/canvastools.hxx>
  24 #include <com/sun/star/rendering/RepaintResult.hpp>
  25 #include <cppuhelper/supportsservice.hxx>
  26
  27 #include <base/cachedprimitivebase.hxx>
  28 #include <utility>
  29
  30
  31 using namespace ::com::sun::star;
  32
  33 namespace canvas
  34 {
  35     CachedPrimitiveBase::CachedPrimitiveBase( rendering::ViewState                    aUsedViewState,
  36                                               uno::Reference< rendering::XCanvas >    xTarget ) :
  37         maUsedViewState(std::move( aUsedViewState )),
  38         mxTarget(std::move( xTarget ))
  39     {
  40     }
  41
  42     CachedPrimitiveBase::~CachedPrimitiveBase()
  43     {
  44     }
  45
  46     void CachedPrimitiveBase::disposing(std::unique_lock<std::mutex>& /*rGuard*/)
  47     {
  48         maUsedViewState.Clip.clear();
  49         mxTarget.clear();
  50     }
  51
  52     sal_Int8 SAL_CALL CachedPrimitiveBase::redraw( const rendering::ViewState& aState )
  53     {
  54         ::basegfx::B2DHomMatrix aUsedTransformation;
  55         ::basegfx::B2DHomMatrix aNewTransformation;
  56
  57         ::basegfx::unotools::homMatrixFromAffineMatrix( aUsedTransformation,
  58                                                         maUsedViewState.AffineTransform );
  59         ::basegfx::unotools::homMatrixFromAffineMatrix( aNewTransformation,
  60                                                         aState.AffineTransform );
  61
  62         const bool bSameViewTransforms( aUsedTransformation == aNewTransformation );
  63
  64         if( !bSameViewTransforms )
  65         {
  66             // differing transformations, don't try to draft the
  67             // output, just plain fail here.
  68             return rendering::RepaintResult::FAILED;
  69         }
  70
  71         return doRedraw( aState,
  72                          maUsedViewState,
  73                          mxTarget,
  74                          bSameViewTransforms );
  75     }
  76
  77     OUString SAL_CALL CachedPrimitiveBase::getImplementationName(  )
  78     {
  79         return u"canvas::CachedPrimitiveBase"_ustr;
  80     }
  81
  82     sal_Bool SAL_CALL CachedPrimitiveBase::supportsService( const OUString& ServiceName )
  83     {
  84         return cppu::supportsService(this, ServiceName);
  85     }
  86
  87     uno::Sequence< OUString > SAL_CALL CachedPrimitiveBase::getSupportedServiceNames(  )
  88     {
  89         return { u"com.sun.star.rendering.CachedBitmap"_ustr };
  90     }
  91 }
  92
  93 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */