cppcanvas/source/wrapper/implcanvas.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*************************************************************************
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * Copyright 2000, 2010 Oracle and/or its affiliates.
   7  *
   8  * OpenOffice.org - a multi-platform office productivity suite
   9  *
  10  * This file is part of OpenOffice.org.
  11  *
  12  * OpenOffice.org is free software: you can redistribute it and/or modify
  13  * it under the terms of the GNU Lesser General Public License version 3
  14  * only, as published by the Free Software Foundation.
  15  *
  16  * OpenOffice.org is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU Lesser General Public License version 3 for more details
  20  * (a copy is included in the LICENSE file that accompanied this code).
  21  *
  22  * You should have received a copy of the GNU Lesser General Public License
  23  * version 3 along with OpenOffice.org.  If not, see
  24  * <http://www.openoffice.org/license.html>
  25  * for a copy of the LGPLv3 License.
  26  *
  27  ************************************************************************/
  28
  29
  30 #include <rtl/ustring.hxx>
  31 #include <basegfx/matrix/b2dhommatrix.hxx>
  32 #include <basegfx/polygon/b2dpolypolygon.hxx>
  33 #include <basegfx/tools/canvastools.hxx>
  34
  35 #include <com/sun/star/rendering/XCanvas.hpp>
  36
  37 #include <canvas/canvastools.hxx>
  38 #include <cppcanvas/polypolygon.hxx>
  39
  40 #include "implfont.hxx"
  41 #include "implcolor.hxx"
  42 #include "implcanvas.hxx"
  43
  44
  45 using namespace ::com::sun::star;
  46
  47 namespace cppcanvas
  48 {
  49     namespace internal
  50     {
  51
  52         ImplCanvas::ImplCanvas( const uno::Reference< rendering::XCanvas >& xCanvas ) :
  53             maViewState(),
  54             maClipPolyPolygon(),
  55             mxCanvas( xCanvas )
  56         {
  57             OSL_ENSURE( mxCanvas.is(), "Canvas::Canvas() invalid XCanvas" );
  58
  59             ::canvas::tools::initViewState( maViewState );
  60         }
  61
  62         ImplCanvas::~ImplCanvas()
  63         {
  64         }
  65
  66         void ImplCanvas::setTransformation( const ::basegfx::B2DHomMatrix& rMatrix )
  67         {
  68             ::canvas::tools::setViewStateTransform( maViewState, rMatrix );
  69         }
  70
  71         ::basegfx::B2DHomMatrix ImplCanvas::getTransformation() const
  72         {
  73             ::basegfx::B2DHomMatrix aMatrix;
  74             return ::canvas::tools::getViewStateTransform( aMatrix,
  75                                                            maViewState );
  76         }
  77
  78         void ImplCanvas::setClip( const ::basegfx::B2DPolyPolygon& rClipPoly )
  79         {
  80             // TODO(T3): not thread-safe. B2DPolyPolygon employs copy-on-write
  81             maClipPolyPolygon.reset( rClipPoly );
  82             maViewState.Clip.clear();
  83         }
  84
  85         void ImplCanvas::setClip()
  86         {
  87             maClipPolyPolygon.reset();
  88             maViewState.Clip.clear();
  89         }
  90
  91         ::basegfx::B2DPolyPolygon const* ImplCanvas::getClip() const
  92         {
  93             return !maClipPolyPolygon ? NULL : &(*maClipPolyPolygon);
  94         }
  95
  96         FontSharedPtr ImplCanvas::createFont( const ::rtl::OUString& rFontName, const double& rCellSize ) const
  97         {
  98             return FontSharedPtr( new ImplFont( getUNOCanvas(), rFontName, rCellSize ) );
  99         }
 100
 101         ColorSharedPtr ImplCanvas::createColor() const
 102         {
 103             return ColorSharedPtr( new ImplColor( getUNOCanvas()->getDevice() ) );
 104         }
 105
 106         CanvasSharedPtr ImplCanvas::clone() const
 107         {
 108             return CanvasSharedPtr( new ImplCanvas( *this ) );
 109         }
 110
 111         void ImplCanvas::clear() const
 112         {
 113             OSL_ENSURE( mxCanvas.is(), "ImplCanvas::clear(): Invalid XCanvas" );
 114             mxCanvas->clear();
 115         }
 116
 117         uno::Reference< rendering::XCanvas > ImplCanvas::getUNOCanvas() const
 118         {
 119             OSL_ENSURE( mxCanvas.is(), "ImplCanvas::getUNOCanvas(): Invalid XCanvas" );
 120
 121             return mxCanvas;
 122         }
 123
 124         rendering::ViewState ImplCanvas::getViewState() const
 125         {
 126             if( maClipPolyPolygon && !maViewState.Clip.is() )
 127             {
 128                 if( !mxCanvas.is() )
 129                     return maViewState;
 130
 131                 maViewState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(
 132                     mxCanvas->getDevice(),
 133                     *maClipPolyPolygon );
 134             }
 135
 136             return maViewState;
 137         }
 138
 139     }
 140 }
 141
 142 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */