LCOV - code coverage report
Current view: top level - drawinglayer/source/primitive2d - textprimitive2d.cxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 0 103 0.0 %
Date: 2014-04-14 Functions: 0 8 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       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             : #include <drawinglayer/primitive2d/textprimitive2d.hxx>
      21             : #include <drawinglayer/primitive2d/textlayoutdevice.hxx>
      22             : #include <basegfx/polygon/b2dpolypolygon.hxx>
      23             : #include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
      24             : #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
      25             : #include <drawinglayer/primitive2d/texteffectprimitive2d.hxx>
      26             : #include <basegfx/matrix/b2dhommatrixtools.hxx>
      27             : 
      28             : 
      29             : 
      30             : using namespace com::sun::star;
      31             : 
      32             : 
      33             : 
      34             : namespace
      35             : {
      36             :     // adapts fontScale for usage with TextLayouter. Input is rScale which is the extracted
      37             :     // scale from a text transformation. A copy is modified so that it contains only positive
      38             :     // scalings and XY-equal scalings to allow to get a non-X-scaled Vcl-Font for TextLayouter.
      39             :     // rScale is adapted accordingly to contain the corrected scale which would need to be
      40             :     // applied to e.g. outlines received from TextLayouter under usage of fontScale. This
      41             :     // includes Y-Scale, X-Scale-correction and mirrorings.
      42           0 :     basegfx::B2DVector getCorrectedScaleAndFontScale(basegfx::B2DVector& rScale)
      43             :     {
      44             :         // copy input value
      45           0 :         basegfx::B2DVector aFontScale(rScale);
      46             : 
      47             :         // correct FontHeight settings
      48           0 :         if(basegfx::fTools::equalZero(aFontScale.getY()))
      49             :         {
      50             :             // no font height; choose one and adapt scale to get back to original scaling
      51             :             static double fDefaultFontScale(100.0);
      52           0 :             rScale.setY(1.0 / fDefaultFontScale);
      53           0 :             aFontScale.setY(fDefaultFontScale);
      54             :         }
      55           0 :         else if(basegfx::fTools::less(aFontScale.getY(), 0.0))
      56             :         {
      57             :             // negative font height; invert and adapt scale to get back to original scaling
      58           0 :             aFontScale.setY(-aFontScale.getY());
      59           0 :             rScale.setY(-1.0);
      60             :         }
      61             :         else
      62             :         {
      63             :             // positive font height; adapt scale; scaling will be part of the polygons
      64           0 :             rScale.setY(1.0);
      65             :         }
      66             : 
      67             :         // correct FontWidth settings
      68           0 :         if(basegfx::fTools::equal(aFontScale.getX(), aFontScale.getY()))
      69             :         {
      70             :             // no FontScale, adapt scale
      71           0 :             rScale.setX(1.0);
      72             :         }
      73             :         else
      74             :         {
      75             :             // If FontScale is used, force to no FontScale to get a non-scaled VCL font.
      76             :             // Adapt scaling in X accordingly.
      77           0 :             rScale.setX(aFontScale.getX() / aFontScale.getY());
      78           0 :             aFontScale.setX(aFontScale.getY());
      79             :         }
      80             : 
      81           0 :         return aFontScale;
      82             :     }
      83             : } // end of anonymous namespace
      84             : 
      85             : 
      86             : 
      87             : namespace drawinglayer
      88             : {
      89             :     namespace primitive2d
      90             :     {
      91           0 :         void TextSimplePortionPrimitive2D::getTextOutlinesAndTransformation(basegfx::B2DPolyPolygonVector& rTarget, basegfx::B2DHomMatrix& rTransformation) const
      92             :         {
      93           0 :             if(getTextLength())
      94             :             {
      95             :                 // decompose object transformation to single values
      96           0 :                 basegfx::B2DVector aScale, aTranslate;
      97             :                 double fRotate, fShearX;
      98             : 
      99             :                 // if decomposition returns false, create no geometry since e.g. scaling may
     100             :                 // be zero
     101           0 :                 if(getTextTransform().decompose(aScale, aTranslate, fRotate, fShearX))
     102             :                 {
     103             :                     // handle special case: If scale is negative in (x,y) (3rd quadrant), it can
     104             :                     // be expressed as rotation by PI
     105           0 :                     if(basegfx::fTools::less(aScale.getX(), 0.0) && basegfx::fTools::less(aScale.getY(), 0.0))
     106             :                     {
     107           0 :                         aScale = basegfx::absolute(aScale);
     108           0 :                         fRotate += F_PI;
     109             :                     }
     110             : 
     111             :                     // for the TextLayouterDevice, it is necessary to have a scaling representing
     112             :                     // the font size. Since we want to extract polygons here, it is okay to
     113             :                     // work just with scaling and to ignore shear, rotation and translation,
     114             :                     // all that can be applied to the polygons later
     115           0 :                     const basegfx::B2DVector aFontScale(getCorrectedScaleAndFontScale(aScale));
     116             : 
     117             :                     // prepare textlayoutdevice
     118           0 :                     TextLayouterDevice aTextLayouter;
     119             :                     aTextLayouter.setFontAttribute(
     120           0 :                         getFontAttribute(),
     121             :                         aFontScale.getX(),
     122             :                         aFontScale.getY(),
     123           0 :                         getLocale());
     124             : 
     125             :                     // When getting outlines from stretched text (aScale.getX() != 1.0) it
     126             :                     // is necessary to inverse-scale the DXArray (if used) to not get the
     127             :                     // outlines already aligned to given, but wrong DXArray
     128           0 :                     if(getDXArray().size() && !basegfx::fTools::equal(aScale.getX(), 1.0))
     129             :                     {
     130           0 :                         ::std::vector< double > aScaledDXArray = getDXArray();
     131           0 :                         const double fDXArrayScale(1.0 / aScale.getX());
     132             : 
     133           0 :                         for(sal_uInt32 a(0); a < aScaledDXArray.size(); a++)
     134             :                         {
     135           0 :                             aScaledDXArray[a] *= fDXArrayScale;
     136             :                         }
     137             : 
     138             :                         // get the text outlines
     139             :                         aTextLayouter.getTextOutlines(
     140             :                             rTarget,
     141           0 :                             getText(),
     142           0 :                             getTextPosition(),
     143           0 :                             getTextLength(),
     144           0 :                             aScaledDXArray);
     145             :                     }
     146             :                     else
     147             :                     {
     148             :                         // get the text outlines
     149             :                         aTextLayouter.getTextOutlines(
     150             :                             rTarget,
     151           0 :                             getText(),
     152           0 :                             getTextPosition(),
     153           0 :                             getTextLength(),
     154           0 :                             getDXArray());
     155             :                     }
     156             : 
     157             :                     // create primitives for the outlines
     158           0 :                     const sal_uInt32 nCount(rTarget.size());
     159             : 
     160           0 :                     if(nCount)
     161             :                     {
     162             :                         // prepare object transformation for polygons
     163           0 :                         rTransformation = basegfx::tools::createScaleShearXRotateTranslateB2DHomMatrix(
     164           0 :                             aScale, fShearX, fRotate, aTranslate);
     165           0 :                     }
     166           0 :                 }
     167             :             }
     168           0 :         }
     169             : 
     170           0 :         Primitive2DSequence TextSimplePortionPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
     171             :         {
     172           0 :             Primitive2DSequence aRetval;
     173             : 
     174           0 :             if(getTextLength())
     175             :             {
     176           0 :                 basegfx::B2DPolyPolygonVector aB2DPolyPolyVector;
     177           0 :                 basegfx::B2DHomMatrix aPolygonTransform;
     178             : 
     179             :                 // get text outlines and their object transformation
     180           0 :                 getTextOutlinesAndTransformation(aB2DPolyPolyVector, aPolygonTransform);
     181             : 
     182             :                 // create primitives for the outlines
     183           0 :                 const sal_uInt32 nCount(aB2DPolyPolyVector.size());
     184             : 
     185           0 :                 if(nCount)
     186             :                 {
     187             :                     // alloc space for the primitives
     188           0 :                     aRetval.realloc(nCount);
     189             : 
     190             :                     // color-filled polypolygons
     191           0 :                     for(sal_uInt32 a(0L); a < nCount; a++)
     192             :                     {
     193             :                         // prepare polypolygon
     194           0 :                         basegfx::B2DPolyPolygon& rPolyPolygon = aB2DPolyPolyVector[a];
     195           0 :                         rPolyPolygon.transform(aPolygonTransform);
     196           0 :                         aRetval[a] = new PolyPolygonColorPrimitive2D(rPolyPolygon, getFontColor());
     197             :                     }
     198             : 
     199           0 :                     if(getFontAttribute().getOutline())
     200             :                     {
     201             :                         // decompose polygon transformation to single values
     202           0 :                         basegfx::B2DVector aScale, aTranslate;
     203             :                         double fRotate, fShearX;
     204           0 :                         aPolygonTransform.decompose(aScale, aTranslate, fRotate, fShearX);
     205             : 
     206             :                         // create outline text effect with current content and replace
     207             :                         Primitive2DReference aNewTextEffect(new TextEffectPrimitive2D(
     208             :                             aRetval,
     209             :                             aTranslate,
     210             :                             fRotate,
     211           0 :                             TEXTEFFECTSTYLE2D_OUTLINE));
     212             : 
     213           0 :                         aRetval = Primitive2DSequence(&aNewTextEffect, 1);
     214             :                     }
     215           0 :                 }
     216             :             }
     217             : 
     218           0 :             return aRetval;
     219             :         }
     220             : 
     221           0 :         TextSimplePortionPrimitive2D::TextSimplePortionPrimitive2D(
     222             :             const basegfx::B2DHomMatrix& rNewTransform,
     223             :             const OUString& rText,
     224             :             sal_Int32 nTextPosition,
     225             :             sal_Int32 nTextLength,
     226             :             const ::std::vector< double >& rDXArray,
     227             :             const attribute::FontAttribute& rFontAttribute,
     228             :             const ::com::sun::star::lang::Locale& rLocale,
     229             :             const basegfx::BColor& rFontColor,
     230             :             bool bFilled,
     231             :             long nWidthToFill)
     232             :         :   BufferedDecompositionPrimitive2D(),
     233             :             maTextTransform(rNewTransform),
     234             :             maText(rText),
     235             :             mnTextPosition(nTextPosition),
     236             :             mnTextLength(nTextLength),
     237             :             maDXArray(rDXArray),
     238             :             maFontAttribute(rFontAttribute),
     239             :             maLocale(rLocale),
     240             :             maFontColor(rFontColor),
     241             :             maB2DRange(),
     242             :             mbFilled(bFilled),
     243           0 :             mnWidthToFill(nWidthToFill)
     244             :         {
     245             : #if OSL_DEBUG_LEVEL > 0
     246             :             const sal_Int32 aStringLength(getText().getLength());
     247             :             OSL_ENSURE(aStringLength >= getTextPosition() && aStringLength >= getTextPosition() + getTextLength(),
     248             :                 "TextSimplePortionPrimitive2D with text out of range (!)");
     249             : #endif
     250           0 :         }
     251             : 
     252           0 :         bool LocalesAreEqual(const ::com::sun::star::lang::Locale& rA, const ::com::sun::star::lang::Locale& rB)
     253             :         {
     254           0 :             return (rA.Language == rB.Language
     255           0 :                 && rA.Country == rB.Country
     256           0 :                 && rA.Variant == rB.Variant);
     257             :         }
     258             : 
     259           0 :         bool TextSimplePortionPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
     260             :         {
     261           0 :             if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
     262             :             {
     263           0 :                 const TextSimplePortionPrimitive2D& rCompare = (TextSimplePortionPrimitive2D&)rPrimitive;
     264             : 
     265           0 :                 return (getTextTransform() == rCompare.getTextTransform()
     266           0 :                     && getText() == rCompare.getText()
     267           0 :                     && getTextPosition() == rCompare.getTextPosition()
     268           0 :                     && getTextLength() == rCompare.getTextLength()
     269           0 :                     && getDXArray() == rCompare.getDXArray()
     270           0 :                     && getFontAttribute() == rCompare.getFontAttribute()
     271           0 :                     && LocalesAreEqual(getLocale(), rCompare.getLocale())
     272           0 :                     && getFontColor() == rCompare.getFontColor()
     273           0 :                     && mbFilled == rCompare.mbFilled
     274           0 :                     && mnWidthToFill == rCompare.mnWidthToFill);
     275             :             }
     276             : 
     277           0 :             return false;
     278             :         }
     279             : 
     280           0 :         basegfx::B2DRange TextSimplePortionPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
     281             :         {
     282           0 :             if(maB2DRange.isEmpty() && getTextLength())
     283             :             {
     284             :                 // get TextBoundRect as base size
     285             :                 // decompose object transformation to single values
     286           0 :                 basegfx::B2DVector aScale, aTranslate;
     287             :                 double fRotate, fShearX;
     288             : 
     289           0 :                 if(getTextTransform().decompose(aScale, aTranslate, fRotate, fShearX))
     290             :                 {
     291             :                     // for the TextLayouterDevice, it is necessary to have a scaling representing
     292             :                     // the font size. Since we want to extract polygons here, it is okay to
     293             :                     // work just with scaling and to ignore shear, rotation and translation,
     294             :                     // all that can be applied to the polygons later
     295           0 :                     const basegfx::B2DVector aFontScale(getCorrectedScaleAndFontScale(aScale));
     296             : 
     297             :                     // prepare textlayoutdevice
     298           0 :                     TextLayouterDevice aTextLayouter;
     299             :                     aTextLayouter.setFontAttribute(
     300           0 :                         getFontAttribute(),
     301             :                         aFontScale.getX(),
     302             :                         aFontScale.getY(),
     303           0 :                         getLocale());
     304             : 
     305             :                     // get basic text range
     306           0 :                     basegfx::B2DRange aNewRange(aTextLayouter.getTextBoundRect(getText(), getTextPosition(), getTextLength()));
     307             : 
     308             :                     // #i104432#, #i102556# take empty results into account
     309           0 :                     if(!aNewRange.isEmpty())
     310             :                     {
     311             :                         // prepare object transformation for range
     312             :                         const basegfx::B2DHomMatrix aRangeTransformation(basegfx::tools::createScaleShearXRotateTranslateB2DHomMatrix(
     313           0 :                             aScale, fShearX, fRotate, aTranslate));
     314             : 
     315             :                         // apply range transformation to it
     316           0 :                         aNewRange.transform(aRangeTransformation);
     317             : 
     318             :                         // assign to buffered value
     319           0 :                         const_cast< TextSimplePortionPrimitive2D* >(this)->maB2DRange = aNewRange;
     320           0 :                     }
     321           0 :                 }
     322             :             }
     323             : 
     324           0 :             return maB2DRange;
     325             :         }
     326             : 
     327             :         // provide unique ID
     328           0 :         ImplPrimitive2DIDBlock(TextSimplePortionPrimitive2D, PRIMITIVE2D_ID_TEXTSIMPLEPORTIONPRIMITIVE2D)
     329             : 
     330             :     } // end of namespace primitive2d
     331             : } // end of namespace drawinglayer
     332             : 
     333             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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