drawinglayer/source/primitive2d/texteffectprimitive2d.cxx

   1 /*************************************************************************
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   5  *  $RCSfile: texteffectprimitive2d.cxx,v $
   6  *
   7  *  $Revision: 1.4 $
   8  *
   9  *  last change: $Author: aw $ $Date: 2008-06-24 15:31:08 $
  10  *
  11  *  The Contents of this file are made available subject to
  12  *  the terms of GNU Lesser General Public License Version 2.1.
  13  *
  14  *
  15  *    GNU Lesser General Public License Version 2.1
  16  *    =============================================
  17  *    Copyright 2005 by Sun Microsystems, Inc.
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  20  *    This library is free software; you can redistribute it and/or
  21  *    modify it under the terms of the GNU Lesser General Public
  22  *    License version 2.1, as published by the Free Software Foundation.
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  24  *    This library is distributed in the hope that it will be useful,
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  26  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  27  *    Lesser General Public License for more details.
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  29  *    You should have received a copy of the GNU Lesser General Public
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  31  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  32  *    MA  02111-1307  USA
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  34  ************************************************************************/
  35
  36 // MARKER(update_precomp.py): autogen include statement, do not remove
  37 #include "precompiled_drawinglayer.hxx"
  38
  39 #include <drawinglayer/primitive2d/texteffectprimitive2d.hxx>
  40 #include <drawinglayer/geometry/viewinformation2d.hxx>
  41 #include <drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx>
  42 #include <drawinglayer/primitive2d/transformprimitive2d.hxx>
  43 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  44
  45 //////////////////////////////////////////////////////////////////////////////
  46
  47 namespace drawinglayer
  48 {
  49     namespace primitive2d
  50     {
  51         static double fDiscreteSize(1.1);
  52
  53         Primitive2DSequence TextEffectPrimitive2D::createLocalDecomposition(const geometry::ViewInformation2D& rViewInformation) const
  54         {
  55             Primitive2DSequence aRetval;
  56
  57             // get the distance of one discrete units from target display. Use between 1.0 and sqrt(2) to
  58             // have good results on rotated objects, too
  59             const basegfx::B2DVector aDistance(rViewInformation.getInverseObjectToViewTransformation() *
  60                 basegfx::B2DVector(fDiscreteSize, fDiscreteSize));
  61             const basegfx::B2DVector aDiagonalDistance(aDistance * (1.0 / 1.44));
  62
  63             switch(getTextEffectStyle2D())
  64             {
  65                 case TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED:
  66                 case TEXTEFFECTSTYLE2D_RELIEF_ENGRAVED:
  67                 case TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED_DEFAULT:
  68                 case TEXTEFFECTSTYLE2D_RELIEF_ENGRAVED_DEFAULT:
  69                 {
  70                     // prepare transform of sub-group back to (0,0) and align to X-Axis
  71                     basegfx::B2DHomMatrix aBackTransform;
  72                     aBackTransform.translate(-getRotationCenter().getX(), -getRotationCenter().getY());
  73                     aBackTransform.rotate(-getDirection());
  74
  75                     // prepare transform of sub-group back to it's position and rotation
  76                     basegfx::B2DHomMatrix aForwardTransform;
  77                     aForwardTransform.rotate(getDirection());
  78                     aForwardTransform.translate(getRotationCenter().getX(), getRotationCenter().getY());
  79
  80                     // create transformation for one discrete unit
  81                     const bool bEmbossed(
  82                         TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED  == getTextEffectStyle2D()
  83                         || TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED_DEFAULT == getTextEffectStyle2D());
  84                     const bool bDefaultTextColor(
  85                         TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED_DEFAULT == getTextEffectStyle2D()
  86                         || TEXTEFFECTSTYLE2D_RELIEF_ENGRAVED_DEFAULT == getTextEffectStyle2D());
  87                     basegfx::B2DHomMatrix aTransform(aBackTransform);
  88                     aRetval.realloc(2);
  89
  90                     if(bEmbossed)
  91                     {
  92                         // to bottom-right
  93                         aTransform.translate(aDiagonalDistance.getX(), aDiagonalDistance.getY());
  94                     }
  95                     else
  96                     {
  97                         // to top-left
  98                         aTransform.translate(-aDiagonalDistance.getX(), -aDiagonalDistance.getY());
  99                     }
 100
 101                     aTransform *= aForwardTransform;
 102
 103                     if(bDefaultTextColor)
 104                     {
 105                         // emboss/engrave in black, original forced to white
 106                         const basegfx::BColorModifier aBColorModifierToGray(basegfx::BColor(0.0));
 107                         const Primitive2DReference xModifiedColor(new ModifiedColorPrimitive2D(getChildren(), aBColorModifierToGray));
 108                         aRetval[0] = Primitive2DReference(new TransformPrimitive2D(aTransform, Primitive2DSequence(&xModifiedColor, 1)));
 109
 110                         // add original, too
 111                         const basegfx::BColorModifier aBColorModifierToWhite(basegfx::BColor(1.0));
 112                         aRetval[1] = Primitive2DReference(new ModifiedColorPrimitive2D(getChildren(), aBColorModifierToWhite));
 113                     }
 114                     else
 115                     {
 116                         // emboss/engrave in gray, keep original's color
 117                         const basegfx::BColorModifier aBColorModifierToGray(basegfx::BColor(0.75)); // 192
 118                         const Primitive2DReference xModifiedColor(new ModifiedColorPrimitive2D(getChildren(), aBColorModifierToGray));
 119                         aRetval[0] = Primitive2DReference(new TransformPrimitive2D(aTransform, Primitive2DSequence(&xModifiedColor, 1)));
 120
 121                         // add original, too
 122                         aRetval[1] = Primitive2DReference(new GroupPrimitive2D(getChildren()));
 123                     }
 124
 125                     break;
 126                 }
 127                 case TEXTEFFECTSTYLE2D_OUTLINE:
 128                 {
 129                     // create transform primitives in all directions
 130                     basegfx::B2DHomMatrix aTransform;
 131                     aRetval.realloc(9);
 132
 133                     aTransform.set(0, 2, aDistance.getX());
 134                     aTransform.set(1, 2, 0.0);
 135                     aRetval[0] = Primitive2DReference(new TransformPrimitive2D(aTransform, getChildren()));
 136
 137                     aTransform.set(0, 2, aDiagonalDistance.getX());
 138                     aTransform.set(1, 2, aDiagonalDistance.getY());
 139                     aRetval[1] = Primitive2DReference(new TransformPrimitive2D(aTransform, getChildren()));
 140
 141                     aTransform.set(0, 2, 0.0);
 142                     aTransform.set(1, 2, aDistance.getY());
 143                     aRetval[2] = Primitive2DReference(new TransformPrimitive2D(aTransform, getChildren()));
 144
 145                     aTransform.set(0, 2, -aDiagonalDistance.getX());
 146                     aTransform.set(1, 2, aDiagonalDistance.getY());
 147                     aRetval[3] = Primitive2DReference(new TransformPrimitive2D(aTransform, getChildren()));
 148
 149                     aTransform.set(0, 2, -aDistance.getX());
 150                     aTransform.set(1, 2, 0.0);
 151                     aRetval[4] = Primitive2DReference(new TransformPrimitive2D(aTransform, getChildren()));
 152
 153                     aTransform.set(0, 2, -aDiagonalDistance.getX());
 154                     aTransform.set(1, 2, -aDiagonalDistance.getY());
 155                     aRetval[5] = Primitive2DReference(new TransformPrimitive2D(aTransform, getChildren()));
 156
 157                     aTransform.set(0, 2, 0.0);
 158                     aTransform.set(1, 2, -aDistance.getY());
 159                     aRetval[6] = Primitive2DReference(new TransformPrimitive2D(aTransform, getChildren()));
 160
 161                     aTransform.set(0, 2, aDiagonalDistance.getX());
 162                     aTransform.set(1, 2, -aDiagonalDistance.getY());
 163                     aRetval[7] = Primitive2DReference(new TransformPrimitive2D(aTransform, getChildren()));
 164
 165                     // at last, place original over it, but force to white
 166                     const basegfx::BColorModifier aBColorModifierToWhite(basegfx::BColor(1.0, 1.0, 1.0));
 167                     aRetval[8] = Primitive2DReference(new ModifiedColorPrimitive2D(getChildren(), aBColorModifierToWhite));
 168
 169                     break;
 170                 }
 171             }
 172
 173             return aRetval;
 174         }
 175
 176         TextEffectPrimitive2D::TextEffectPrimitive2D(
 177             const Primitive2DSequence& rChildren,
 178             const basegfx::B2DPoint& rRotationCenter,
 179             double fDirection,
 180             TextEffectStyle2D eTextEffectStyle2D)
 181         :       GroupPrimitive2D(rChildren),
 182             maRotationCenter(rRotationCenter),
 183             mfDirection(fDirection),
 184             meTextEffectStyle2D(eTextEffectStyle2D)
 185         {
 186         }
 187
 188         bool TextEffectPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
 189         {
 190             if(GroupPrimitive2D::operator==(rPrimitive))
 191             {
 192                 const TextEffectPrimitive2D& rCompare = (TextEffectPrimitive2D&)rPrimitive;
 193
 194                 return (getRotationCenter() == rCompare.getRotationCenter()
 195                     && getDirection() == rCompare.getDirection()
 196                     && getTextEffectStyle2D() == rCompare.getTextEffectStyle2D());
 197             }
 198
 199             return false;
 200         }
 201
 202         basegfx::B2DRange TextEffectPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const
 203         {
 204             // get range of content and grow by used fDiscreteSize. That way it is not necessary to ask
 205             // the whole decomposition for it's ranges (which may be expensive with outline mode which
 206             // then will ask 9 times at nearly the same content. This may even be refined here using the
 207             // TextEffectStyle information, e.g. for TEXTEFFECTSTYLE2D_RELIEF the grow needs only to
 208             // be in two directions
 209             basegfx::B2DRange aRetval(getB2DRangeFromPrimitive2DSequence(getChildren(), rViewInformation));
 210             aRetval.grow(fDiscreteSize);
 211
 212             return aRetval;
 213         }
 214
 215         Primitive2DSequence TextEffectPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
 216         {
 217             ::osl::MutexGuard aGuard( m_aMutex );
 218
 219             if(getLocalDecomposition().hasElements())
 220             {
 221                 if(maLastObjectToViewTransformation != rViewInformation.getObjectToViewTransformation())
 222                 {
 223                     // conditions of last local decomposition have changed, delete
 224                     const_cast< TextEffectPrimitive2D* >(this)->setLocalDecomposition(Primitive2DSequence());
 225                 }
 226             }
 227
 228             if(!getLocalDecomposition().hasElements())
 229             {
 230                 // remember ViewRange and ViewTransformation
 231                 const_cast< TextEffectPrimitive2D* >(this)->maLastObjectToViewTransformation = rViewInformation.getObjectToViewTransformation();
 232             }
 233
 234             // use parent implementation
 235             return BasePrimitive2D::get2DDecomposition(rViewInformation);
 236         }
 237
 238         // provide unique ID
 239         ImplPrimitrive2DIDBlock(TextEffectPrimitive2D, PRIMITIVE2D_ID_TEXTEFFECTPRIMITIVE2D)
 240
 241     } // end of namespace primitive2d
 242 } // end of namespace drawinglayer
 243
 244 //////////////////////////////////////////////////////////////////////////////
 245 // eof