canvas/source/vcl/impltools.hxx

   1 /*************************************************************************
   2  *
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * Copyright 2008 by Sun Microsystems, Inc.
   6  *
   7  * OpenOffice.org - a multi-platform office productivity suite
   8  *
   9  * $RCSfile: impltools.hxx,v $
  10  * $Revision: 1.8 $
  11  *
  12  * This file is part of OpenOffice.org.
  13  *
  14  * OpenOffice.org is free software: you can redistribute it and/or modify
  15  * it under the terms of the GNU Lesser General Public License version 3
  16  * only, as published by the Free Software Foundation.
  17  *
  18  * OpenOffice.org is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU Lesser General Public License version 3 for more details
  22  * (a copy is included in the LICENSE file that accompanied this code).
  23  *
  24  * You should have received a copy of the GNU Lesser General Public License
  25  * version 3 along with OpenOffice.org.  If not, see
  26  * <http://www.openoffice.org/license.html>
  27  * for a copy of the LGPLv3 License.
  28  *
  29  ************************************************************************/
  30
  31 #ifndef _VCLCANVAS_TOOLS_HXX
  32 #define _VCLCANVAS_TOOLS_HXX
  33
  34 #include <osl/mutex.hxx>
  35 #include <vos/mutex.hxx>
  36
  37 #include <vcl/svapp.hxx>
  38 #include <vcl/outdev.hxx>
  39
  40 #include <basegfx/polygon/b2dpolypolygon.hxx>
  41
  42 #include <com/sun/star/uno/Reference.hxx>
  43 #include <com/sun/star/uno/Sequence.hxx>
  44
  45 #include <canvas/vclwrapper.hxx>
  46 #include "outdevprovider.hxx"
  47
  48
  49 class OutputDevice;
  50 class Point;
  51 class Size;
  52
  53 namespace basegfx
  54 {
  55     namespace matrix
  56     {
  57         class B2DHomMatrix;
  58     }
  59     namespace vector
  60     {
  61         class B2DVector;
  62     }
  63     namespace point
  64     {
  65         class B2DPoint;
  66     }
  67 }
  68
  69 namespace com { namespace sun { namespace star { namespace awt
  70 {
  71     struct Point;
  72     struct Size;
  73     struct Rectangle;
  74 } } } }
  75
  76 namespace com { namespace sun { namespace star { namespace drawing
  77 {
  78     struct HomogenMatrix3;
  79 } } } }
  80
  81 namespace com { namespace sun { namespace star { namespace geometry
  82 {
  83     struct RealPoint2D;
  84     struct RealSize2D;
  85     struct RealRectangle2D;
  86 } } } }
  87
  88 namespace com { namespace sun { namespace star { namespace rendering
  89 {
  90     struct RenderState;
  91     struct ViewState;
  92     class  XCanvas;
  93     class  XBitmap;
  94     class  XPolyPolygon2D;
  95 } } } }
  96
  97
  98 namespace vclcanvas
  99 {
 100     namespace tools
 101     {
 102         ::BitmapEx
 103         bitmapExFromXBitmap( const ::com::sun::star::uno::Reference<
 104                              ::com::sun::star::rendering::XBitmap >& );
 105
 106         /** Setup VCL font and output position
 107
 108             @returns false, if no text output should happen
 109          */
 110         bool setupFontTransform( ::Point&                                                                                                       o_rPoint,
 111                                  ::Font&                                                                                                        io_rVCLFont,
 112                                  const ::com::sun::star::rendering::ViewState&          viewState,
 113                                  const ::com::sun::star::rendering::RenderState&        renderState,
 114                                  ::OutputDevice&                                                                                        rOutDev );
 115
 116         /** Predicate, to determine whether polygon is actually an axis-aligned rectangle
 117
 118             @return true, if the polygon is a rectangle.
 119          */
 120         bool isRectangle( const PolyPolygon& rPolyPoly );
 121
 122
 123         // Little helper to encapsulate locking into policy class
 124         class LocalGuard
 125         {
 126         public:
 127             LocalGuard() :
 128                 aGuard( Application::GetSolarMutex() )
 129             {
 130             }
 131
 132             /// To be compatible with CanvasBase mutex concept
 133             LocalGuard( const ::osl::Mutex& ) :
 134                 aGuard( Application::GetSolarMutex() )
 135             {
 136             }
 137
 138         private:
 139             ::vos::OGuard aGuard;
 140         };
 141
 142         class OutDevStateKeeper
 143         {
 144         public:
 145             explicit OutDevStateKeeper( OutputDevice& rOutDev ) :
 146                 mpOutDev( &rOutDev ),
 147                 mbMappingWasEnabled( mpOutDev->IsMapModeEnabled() )
 148             {
 149                 init();
 150             }
 151
 152             explicit OutDevStateKeeper( const OutDevProviderSharedPtr& rOutDev ) :
 153                 mpOutDev( rOutDev.get() ? &(rOutDev->getOutDev()) : NULL ),
 154                 mbMappingWasEnabled( mpOutDev ? mpOutDev->IsMapModeEnabled() : false )
 155             {
 156                 init();
 157             }
 158
 159             ~OutDevStateKeeper()
 160             {
 161                 if( mpOutDev )
 162                 {
 163                     mpOutDev->EnableMapMode( mbMappingWasEnabled );
 164                     mpOutDev->Pop();
 165                 }
 166             }
 167
 168         private:
 169             void init()
 170             {
 171                 if( mpOutDev )
 172                 {
 173                     mpOutDev->Push();
 174                     mpOutDev->EnableMapMode(FALSE);
 175                 }
 176             }
 177
 178             OutputDevice*       mpOutDev;
 179             const bool          mbMappingWasEnabled;
 180         };
 181
 182         ::Point mapRealPoint2D( const ::com::sun::star::geometry::RealPoint2D&  rPoint,
 183                                 const ::com::sun::star::rendering::ViewState&   rViewState,
 184                                 const ::com::sun::star::rendering::RenderState& rRenderState );
 185
 186         ::PolyPolygon mapPolyPolygon( const ::basegfx::B2DPolyPolygon&                                                  rPoly,
 187                                       const ::com::sun::star::rendering::ViewState&     rViewState,
 188                                       const ::com::sun::star::rendering::RenderState&   rRenderState );
 189
 190         enum ModulationMode
 191         {
 192             MODULATE_NONE,
 193             MODULATE_WITH_DEVICECOLOR
 194         };
 195
 196         ::BitmapEx transformBitmap( const BitmapEx&                                                                     rBitmap,
 197                                     const ::basegfx::B2DHomMatrix&                                              rTransform,
 198                                     const ::com::sun::star::uno::Sequence< double >&    rDeviceColor,
 199                                     ModulationMode                                                                              eModulationMode );
 200
 201     }
 202 }
 203
 204 #endif /* _VCLCANVAS_TOOLS_HXX */