xref: /trunk/main/drawinglayer/source/primitive2d/texteffectprimitive2d.cxx (revision 1ecadb572e7010ff3b3382ad9bf179dbc6efadbb)
1 /*************************************************************************
2  *
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * Copyright 2000, 2010 Oracle and/or its affiliates.
6  *
7  * OpenOffice.org - a multi-platform office productivity suite
8  *
9  * This file is part of OpenOffice.org.
10  *
11  * OpenOffice.org is free software: you can redistribute it and/or modify
12  * it under the terms of the GNU Lesser General Public License version 3
13  * only, as published by the Free Software Foundation.
14  *
15  * OpenOffice.org is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU Lesser General Public License version 3 for more details
19  * (a copy is included in the LICENSE file that accompanied this code).
20  *
21  * You should have received a copy of the GNU Lesser General Public License
22  * version 3 along with OpenOffice.org.  If not, see
23  * <http://www.openoffice.org/license.html>
24  * for a copy of the LGPLv3 License.
25  *
26  ************************************************************************/
27 
28 // MARKER(update_precomp.py): autogen include statement, do not remove
29 #include "precompiled_drawinglayer.hxx"
30 
31 #include <drawinglayer/primitive2d/texteffectprimitive2d.hxx>
32 #include <drawinglayer/geometry/viewinformation2d.hxx>
33 #include <drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx>
34 #include <drawinglayer/primitive2d/transformprimitive2d.hxx>
35 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
36 #include <basegfx/matrix/b2dhommatrixtools.hxx>
37 
38 //////////////////////////////////////////////////////////////////////////////
39 
40 namespace drawinglayer
41 {
42     namespace primitive2d
43     {
44         static double fDiscreteSize(1.1);
45 
46         Primitive2DSequence TextEffectPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
47         {
48             Primitive2DSequence aRetval;
49 
50             // get the distance of one discrete units from target display. Use between 1.0 and sqrt(2) to
51             // have good results on rotated objects, too
52             const basegfx::B2DVector aDistance(rViewInformation.getInverseObjectToViewTransformation() *
53                 basegfx::B2DVector(fDiscreteSize, fDiscreteSize));
54             const basegfx::B2DVector aDiagonalDistance(aDistance * (1.0 / 1.44));
55 
56             switch(getTextEffectStyle2D())
57             {
58                 case TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED:
59                 case TEXTEFFECTSTYLE2D_RELIEF_ENGRAVED:
60                 case TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED_DEFAULT:
61                 case TEXTEFFECTSTYLE2D_RELIEF_ENGRAVED_DEFAULT:
62                 {
63                     // prepare transform of sub-group back to (0,0) and align to X-Axis
64                     basegfx::B2DHomMatrix aBackTransform(basegfx::tools::createTranslateB2DHomMatrix(
65                         -getRotationCenter().getX(), -getRotationCenter().getY()));
66                     aBackTransform.rotate(-getDirection());
67 
68                     // prepare transform of sub-group back to it's position and rotation
69                     basegfx::B2DHomMatrix aForwardTransform(basegfx::tools::createRotateB2DHomMatrix(getDirection()));
70                     aForwardTransform.translate(getRotationCenter().getX(), getRotationCenter().getY());
71 
72                     // create transformation for one discrete unit
73                     const bool bEmbossed(
74                         TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED  == getTextEffectStyle2D()
75                         || TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED_DEFAULT == getTextEffectStyle2D());
76                     const bool bDefaultTextColor(
77                         TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED_DEFAULT == getTextEffectStyle2D()
78                         || TEXTEFFECTSTYLE2D_RELIEF_ENGRAVED_DEFAULT == getTextEffectStyle2D());
79                     basegfx::B2DHomMatrix aTransform(aBackTransform);
80                     aRetval.realloc(2);
81 
82                     if(bEmbossed)
83                     {
84                         // to bottom-right
85                         aTransform.translate(aDiagonalDistance.getX(), aDiagonalDistance.getY());
86                     }
87                     else
88                     {
89                         // to top-left
90                         aTransform.translate(-aDiagonalDistance.getX(), -aDiagonalDistance.getY());
91                     }
92 
93                     aTransform *= aForwardTransform;
94 
95                     if(bDefaultTextColor)
96                     {
97                         // emboss/engrave in black, original forced to white
98                         const basegfx::BColorModifier aBColorModifierToGray(basegfx::BColor(0.0));
99                         const Primitive2DReference xModifiedColor(new ModifiedColorPrimitive2D(getTextContent(), aBColorModifierToGray));
100                         aRetval[0] = Primitive2DReference(new TransformPrimitive2D(aTransform, Primitive2DSequence(&xModifiedColor, 1)));
101 
102                         // add original, too
103                         const basegfx::BColorModifier aBColorModifierToWhite(basegfx::BColor(1.0));
104                         aRetval[1] = Primitive2DReference(new ModifiedColorPrimitive2D(getTextContent(), aBColorModifierToWhite));
105                     }
106                     else
107                     {
108                         // emboss/engrave in gray, keep original's color
109                         const basegfx::BColorModifier aBColorModifierToGray(basegfx::BColor(0.75)); // 192
110                         const Primitive2DReference xModifiedColor(new ModifiedColorPrimitive2D(getTextContent(), aBColorModifierToGray));
111                         aRetval[0] = Primitive2DReference(new TransformPrimitive2D(aTransform, Primitive2DSequence(&xModifiedColor, 1)));
112 
113                         // add original, too
114                         aRetval[1] = Primitive2DReference(new GroupPrimitive2D(getTextContent()));
115                     }
116 
117                     break;
118                 }
119                 case TEXTEFFECTSTYLE2D_OUTLINE:
120                 {
121                     // create transform primitives in all directions
122                     basegfx::B2DHomMatrix aTransform;
123                     aRetval.realloc(9);
124 
125                     aTransform.set(0, 2, aDistance.getX());
126                     aTransform.set(1, 2, 0.0);
127                     aRetval[0] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
128 
129                     aTransform.set(0, 2, aDiagonalDistance.getX());
130                     aTransform.set(1, 2, aDiagonalDistance.getY());
131                     aRetval[1] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
132 
133                     aTransform.set(0, 2, 0.0);
134                     aTransform.set(1, 2, aDistance.getY());
135                     aRetval[2] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
136 
137                     aTransform.set(0, 2, -aDiagonalDistance.getX());
138                     aTransform.set(1, 2, aDiagonalDistance.getY());
139                     aRetval[3] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
140 
141                     aTransform.set(0, 2, -aDistance.getX());
142                     aTransform.set(1, 2, 0.0);
143                     aRetval[4] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
144 
145                     aTransform.set(0, 2, -aDiagonalDistance.getX());
146                     aTransform.set(1, 2, -aDiagonalDistance.getY());
147                     aRetval[5] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
148 
149                     aTransform.set(0, 2, 0.0);
150                     aTransform.set(1, 2, -aDistance.getY());
151                     aRetval[6] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
152 
153                     aTransform.set(0, 2, aDiagonalDistance.getX());
154                     aTransform.set(1, 2, -aDiagonalDistance.getY());
155                     aRetval[7] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
156 
157                     // at last, place original over it, but force to white
158                     const basegfx::BColorModifier aBColorModifierToWhite(basegfx::BColor(1.0, 1.0, 1.0));
159                     aRetval[8] = Primitive2DReference(new ModifiedColorPrimitive2D(getTextContent(), aBColorModifierToWhite));
160 
161                     break;
162                 }
163             }
164 
165             return aRetval;
166         }
167 
168         TextEffectPrimitive2D::TextEffectPrimitive2D(
169             const Primitive2DSequence& rTextContent,
170             const basegfx::B2DPoint& rRotationCenter,
171             double fDirection,
172             TextEffectStyle2D eTextEffectStyle2D)
173         :   BufferedDecompositionPrimitive2D(),
174             maTextContent(rTextContent),
175             maRotationCenter(rRotationCenter),
176             mfDirection(fDirection),
177             meTextEffectStyle2D(eTextEffectStyle2D)
178         {
179         }
180 
181         bool TextEffectPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
182         {
183             if(BasePrimitive2D::operator==(rPrimitive))
184             {
185                 const TextEffectPrimitive2D& rCompare = (TextEffectPrimitive2D&)rPrimitive;
186 
187                 return (getTextContent() == rCompare.getTextContent()
188                     && getRotationCenter() == rCompare.getRotationCenter()
189                     && getDirection() == rCompare.getDirection()
190                     && getTextEffectStyle2D() == rCompare.getTextEffectStyle2D());
191             }
192 
193             return false;
194         }
195 
196         basegfx::B2DRange TextEffectPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const
197         {
198             // get range of content and grow by used fDiscreteSize. That way it is not necessary to ask
199             // the whole decomposition for it's ranges (which may be expensive with outline mode which
200             // then will ask 9 times at nearly the same content. This may even be refined here using the
201             // TextEffectStyle information, e.g. for TEXTEFFECTSTYLE2D_RELIEF the grow needs only to
202             // be in two directions
203             basegfx::B2DRange aRetval(getB2DRangeFromPrimitive2DSequence(getTextContent(), rViewInformation));
204             aRetval.grow(fDiscreteSize);
205 
206             return aRetval;
207         }
208 
209         Primitive2DSequence TextEffectPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
210         {
211             ::osl::MutexGuard aGuard( m_aMutex );
212 
213             if(getBuffered2DDecomposition().hasElements())
214             {
215                 if(maLastObjectToViewTransformation != rViewInformation.getObjectToViewTransformation())
216                 {
217                     // conditions of last local decomposition have changed, delete
218                     const_cast< TextEffectPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DSequence());
219                 }
220             }
221 
222             if(!getBuffered2DDecomposition().hasElements())
223             {
224                 // remember ViewRange and ViewTransformation
225                 const_cast< TextEffectPrimitive2D* >(this)->maLastObjectToViewTransformation = rViewInformation.getObjectToViewTransformation();
226             }
227 
228             // use parent implementation
229             return BufferedDecompositionPrimitive2D::get2DDecomposition(rViewInformation);
230         }
231 
232         // provide unique ID
233         ImplPrimitrive2DIDBlock(TextEffectPrimitive2D, PRIMITIVE2D_ID_TEXTEFFECTPRIMITIVE2D)
234 
235     } // end of namespace primitive2d
236 } // end of namespace drawinglayer
237 
238 //////////////////////////////////////////////////////////////////////////////
239 // eof
240