cppcanvas/source/wrapper/implsprite.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 <com/sun/star/rendering/XSprite.hpp>
  22 #include <com/sun/star/rendering/XAnimatedSprite.hpp>
  23
  24 #include <basegfx/tools/canvastools.hxx>
  25 #include <basegfx/polygon/b2dpolypolygon.hxx>
  26 #include <canvas/canvastools.hxx>
  27
  28 #include "implsprite.hxx"
  29
  30
  31 using namespace ::com::sun::star;
  32
  33 namespace cppcanvas
  34 {
  35     namespace internal
  36     {
  37
  38         ImplSprite::ImplSprite( const uno::Reference< rendering::XSpriteCanvas >&       rParentCanvas,
  39                                 const uno::Reference< rendering::XSprite >&             rSprite,
  40                                 const ImplSpriteCanvas::TransformationArbiterSharedPtr& rTransformArbiter ) :
  41             mxGraphicDevice(),
  42             mxSprite( rSprite ),
  43             mxAnimatedSprite(),
  44             mpTransformArbiter( rTransformArbiter )
  45         {
  46             // Avoiding ternary operator in initializer list (Solaris
  47             // compiler bug, when function call and temporary is
  48             // involved)
  49             if( rParentCanvas.is() )
  50                 mxGraphicDevice = rParentCanvas->getDevice();
  51
  52             OSL_ENSURE( rParentCanvas.is() , "ImplSprite::ImplSprite(): Invalid canvas");
  53             OSL_ENSURE( mxGraphicDevice.is(), "ImplSprite::ImplSprite(): Invalid graphic device");
  54             OSL_ENSURE( mxSprite.is(), "ImplSprite::ImplSprite(): Invalid sprite");
  55             OSL_ENSURE( mpTransformArbiter.get(), "ImplSprite::ImplSprite(): Invalid transformation arbiter");
  56         }
  57
  58         ImplSprite::~ImplSprite()
  59         {
  60             // hide the sprite on the canvas. If we don't hide the
  61             // sprite, it will stay on the canvas forever, since the
  62             // canvas naturally keeps a list of visible sprites
  63             // (otherwise, it wouldn't be able to paint them
  64             // autonomously)
  65             if( mxSprite.is() )
  66                 mxSprite->hide();
  67         }
  68
  69         void ImplSprite::setAlpha( const double& rAlpha )
  70         {
  71             OSL_ENSURE( mxSprite.is(), "ImplSprite::setAlpha(): Invalid sprite");
  72
  73             if( mxSprite.is() )
  74                 mxSprite->setAlpha( rAlpha );
  75         }
  76
  77         void ImplSprite::movePixel( const ::basegfx::B2DPoint& rNewPos )
  78         {
  79             OSL_ENSURE( mxSprite.is(), "ImplSprite::movePixel(): Invalid sprite");
  80
  81             if( mxSprite.is() )
  82             {
  83                 rendering::ViewState    aViewState;
  84                 rendering::RenderState  aRenderState;
  85
  86                 ::canvas::tools::initViewState( aViewState );
  87                 ::canvas::tools::initRenderState( aRenderState );
  88
  89                 mxSprite->move( ::basegfx::unotools::point2DFromB2DPoint( rNewPos ),
  90                                 aViewState,
  91                                 aRenderState );
  92             }
  93         }
  94
  95         void ImplSprite::move( const ::basegfx::B2DPoint& rNewPos )
  96         {
  97             OSL_ENSURE( mxSprite.is(), "ImplSprite::move(): Invalid sprite");
  98
  99             if( mxSprite.is() )
 100             {
 101                 rendering::ViewState    aViewState;
 102                 rendering::RenderState  aRenderState;
 103
 104                 ::canvas::tools::initViewState( aViewState );
 105                 ::canvas::tools::initRenderState( aRenderState );
 106
 107                 ::canvas::tools::setViewStateTransform( aViewState,
 108                                                         mpTransformArbiter->getTransformation() );
 109
 110                 mxSprite->move( ::basegfx::unotools::point2DFromB2DPoint( rNewPos ),
 111                                 aViewState,
 112                                 aRenderState );
 113             }
 114         }
 115
 116         void ImplSprite::transform( const ::basegfx::B2DHomMatrix& rMatrix )
 117         {
 118             OSL_ENSURE( mxSprite.is(), "ImplSprite::transform(): Invalid sprite");
 119
 120             if( mxSprite.is() )
 121             {
 122                 geometry::AffineMatrix2D aMatrix;
 123
 124                 mxSprite->transform( ::basegfx::unotools::affineMatrixFromHomMatrix( aMatrix,
 125                                                                                      rMatrix ) );
 126             }
 127         }
 128
 129         void ImplSprite::setClipPixel( const ::basegfx::B2DPolyPolygon& rClipPoly )
 130         {
 131             OSL_ENSURE( mxGraphicDevice.is(), "ImplSprite::setClip(): Invalid canvas");
 132             OSL_ENSURE( mxSprite.is(), "ImplSprite::transform(): Invalid sprite");
 133
 134             if( mxSprite.is() && mxGraphicDevice.is() )
 135                 mxSprite->clip( ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( mxGraphicDevice,
 136                                                                                          rClipPoly ) );
 137         }
 138
 139         void ImplSprite::setClip( const ::basegfx::B2DPolyPolygon& rClipPoly )
 140         {
 141             OSL_ENSURE( mxGraphicDevice.is(), "ImplSprite::setClip(): Invalid canvas");
 142             OSL_ENSURE( mxSprite.is(), "ImplSprite::transform(): Invalid sprite");
 143
 144             if( mxSprite.is() && mxGraphicDevice.is() )
 145             {
 146                 ::basegfx::B2DPolyPolygon   aTransformedClipPoly( rClipPoly );
 147
 148                 // extract linear part of canvas view transformation (linear means:
 149                 // without translational components)
 150                 ::basegfx::B2DHomMatrix     aViewTransform( mpTransformArbiter->getTransformation() );
 151                 aViewTransform.set( 0, 2, 0.0 );
 152                 aViewTransform.set( 1, 2, 0.0 );
 153
 154                 // transform polygon from view to device coordinate space
 155                 aTransformedClipPoly.transform( aViewTransform );
 156
 157                 mxSprite->clip( ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( mxGraphicDevice,
 158                                                                                      aTransformedClipPoly ) );
 159             }
 160         }
 161
 162         void ImplSprite::setClip()
 163         {
 164             OSL_ENSURE( mxGraphicDevice.is(), "ImplSprite::setClip(): Invalid canvas");
 165             OSL_ENSURE( mxSprite.is(), "ImplSprite::setClip(): Invalid sprite");
 166
 167             if( mxSprite.is() && mxGraphicDevice.is() )
 168                 mxSprite->clip( uno::Reference< rendering::XPolyPolygon2D >() );
 169         }
 170
 171         void ImplSprite::show()
 172         {
 173             OSL_ENSURE( mxSprite.is(), "ImplSprite::show(): Invalid sprite");
 174
 175             if( mxSprite.is() )
 176                 mxSprite->show();
 177         }
 178
 179         void ImplSprite::hide()
 180         {
 181             OSL_ENSURE( mxSprite.is(), "ImplSprite::hide(): Invalid sprite");
 182
 183             if( mxSprite.is() )
 184                 mxSprite->hide();
 185         }
 186
 187         void ImplSprite::setPriority( double fPriority )
 188         {
 189             OSL_ENSURE( mxSprite.is(), "ImplSprite::setPriority(): Invalid sprite");
 190
 191             if( mxSprite.is() )
 192                 mxSprite->setPriority(fPriority);
 193         }
 194
 195         uno::Reference< rendering::XSprite > ImplSprite::getUNOSprite() const
 196         {
 197             return mxSprite;
 198         }
 199     }
 200 }
 201
 202 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */