LCOV - code coverage report
Current view: top level - include/drawinglayer/primitive2d - svggradientprimitive2d.hxx (source / functions) Hit Total Coverage
Test: commit 10e77ab3ff6f4314137acd6e2702a6e5c1ce1fae Lines: 32 44 72.7 %
Date: 2014-11-03 Functions: 33 40 82.5 %
Legend: Lines: hit not hit

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       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             : #ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_SVGGRADIENTPRIMITIVE2D_HXX
      21             : #define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_SVGGRADIENTPRIMITIVE2D_HXX
      22             : 
      23             : #include <drawinglayer/drawinglayerdllapi.h>
      24             : #include <drawinglayer/primitive2d/baseprimitive2d.hxx>
      25             : #include <basegfx/color/bcolor.hxx>
      26             : #include <basegfx/polygon/b2dpolypolygon.hxx>
      27             : #include <basegfx/matrix/b2dhommatrix.hxx>
      28             : #include <drawinglayer/primitive2d/primitivetools2d.hxx>
      29             : #include <vector>
      30             : 
      31             : 
      32             : // SvgGradientEntry class
      33             : 
      34             : namespace drawinglayer
      35             : {
      36             :     namespace primitive2d
      37             :     {
      38             :         /// a single GradientStop defining a color and opacity at a distance
      39       29195 :         class SvgGradientEntry
      40             :         {
      41             :         private:
      42             :             double              mfOffset;
      43             :             basegfx::BColor     maColor;
      44             :             double              mfOpacity;
      45             : 
      46             :         public:
      47        4568 :             SvgGradientEntry(double fOffset, const basegfx::BColor& rColor = basegfx::BColor(0.0, 0.0, 0.0), double fOpacity = 1.0)
      48             :             :   mfOffset(fOffset),
      49             :                 maColor(rColor),
      50        4568 :                 mfOpacity(fOpacity)
      51             :             {
      52        4568 :             }
      53             : 
      54       26755 :             double getOffset() const { return mfOffset; }
      55        7885 :             const basegfx::BColor& getColor() const { return maColor; }
      56        7881 :             double getOpacity() const { return mfOpacity; }
      57             : 
      58           0 :             bool operator==(const SvgGradientEntry& rCompare) const
      59             :             {
      60           0 :                 return (getOffset() == rCompare.getOffset()
      61           0 :                     && getColor() == getColor()
      62           0 :                     && getOpacity() == getOpacity());
      63             :             }
      64             : 
      65        4138 :             bool operator<(const SvgGradientEntry& rCompare) const
      66             :             {
      67        4138 :                 return getOffset() < rCompare.getOffset();
      68             :             }
      69             :         };
      70             : 
      71             :         typedef ::std::vector< SvgGradientEntry > SvgGradientEntryVector;
      72             : 
      73             :     } // end of namespace primitive2d
      74             : } // end of namespace drawinglayer
      75             : 
      76             : 
      77             : // SvgGradientHelper class
      78             : 
      79             : namespace drawinglayer
      80             : {
      81             :     namespace primitive2d
      82             :     {
      83             :         enum SpreadMethod
      84             :         {
      85             :             Spread_pad = 0,
      86             :             Spread_reflect,
      87             :             Spread_repeat
      88             :         };
      89             : 
      90             :         /*  helper for linear and radial gradient, both get derived from this
      91             :             to share common definitions and functionality
      92             :          **/
      93             :         class SvgGradientHelper
      94             :         {
      95             :         private:
      96             :             /// the extra gradient transform
      97             :             basegfx::B2DHomMatrix       maGradientTransform;
      98             : 
      99             :             /// geometric definition, the geometry to be filled
     100             :             basegfx::B2DPolyPolygon     maPolyPolygon;
     101             : 
     102             :             /// the gradient definition
     103             :             SvgGradientEntryVector      maGradientEntries;
     104             : 
     105             :             /// start and/or center point
     106             :             basegfx::B2DPoint           maStart;
     107             : 
     108             :             /// how to spread
     109             :             SpreadMethod                maSpreadMethod;
     110             : 
     111             :             /// bitfield
     112             :             bool                        mbPreconditionsChecked : 1;
     113             :             bool                        mbCreatesContent : 1;
     114             :             bool                        mbSingleEntry : 1;
     115             :             bool                        mbFullyOpaque : 1;
     116             : 
     117             :             // true = interpret in unit coordinate system -> object aspect ratio will scale result
     118             :             // false = interpret in object coordinate system -> object aspect ratio will not scale result
     119             :             // (related to SVG's gradientUnits (userSpaceOnUse|objectBoundingBox)
     120             :             bool                        mbUseUnitCoordinates : 1;
     121             : 
     122             :         protected:
     123             :             /// local helpers
     124             :             Primitive2DSequence createSingleGradientEntryFill() const;
     125             :             virtual void createAtom(
     126             :                 Primitive2DVector& rTargetColor,
     127             :                 Primitive2DVector& rTargetOpacity,
     128             :                 const SvgGradientEntry& rFrom,
     129             :                 const SvgGradientEntry& rTo,
     130             :                 sal_Int32 nOffset) const = 0;
     131             :             double createRun(
     132             :                 Primitive2DVector& rTargetColor,
     133             :                 Primitive2DVector& rTargetOpacity,
     134             :                 double fPos,
     135             :                 double fMax,
     136             :                 const SvgGradientEntryVector& rEntries,
     137             :                 sal_Int32 nOffset) const;
     138             :             virtual void checkPreconditions();
     139             :             Primitive2DSequence createResult(
     140             :                 const Primitive2DVector& rTargetColor,
     141             :                 const Primitive2DVector& rTargetOpacity,
     142             :                 const basegfx::B2DHomMatrix& rUnitGradientToObject,
     143             :                 bool bInvert = false) const;
     144        2488 :             bool getCreatesContent() const { return mbCreatesContent; }
     145        1244 :             bool getSingleEntry() const { return mbSingleEntry; }
     146           0 :             void setSingleEntry() { mbSingleEntry = true; }
     147        1244 :             bool getPreconditionsChecked() const { return mbPreconditionsChecked; }
     148        3315 :             bool getFullyOpaque() const { return mbFullyOpaque; }
     149             : 
     150             :         public:
     151             :             /// constructor
     152             :             SvgGradientHelper(
     153             :                 const basegfx::B2DHomMatrix& rGradientTransform,
     154             :                 const basegfx::B2DPolyPolygon& rPolyPolygon,
     155             :                 const SvgGradientEntryVector& rGradientEntries,
     156             :                 const basegfx::B2DPoint& rStart,
     157             :                 bool bUseUnitCoordinates,
     158             :                 SpreadMethod aSpreadMethod = Spread_pad);
     159             :             virtual ~SvgGradientHelper();
     160             : 
     161             :             /// data read access
     162        1448 :             const basegfx::B2DHomMatrix& getGradientTransform() const { return maGradientTransform; }
     163        6839 :             const basegfx::B2DPolyPolygon& getPolyPolygon() const { return maPolyPolygon; }
     164        2488 :             const SvgGradientEntryVector& getGradientEntries() const { return maGradientEntries; }
     165        2389 :             const basegfx::B2DPoint& getStart() const { return maStart; }
     166        1244 :             bool getUseUnitCoordinates() const { return mbUseUnitCoordinates; }
     167        1149 :             SpreadMethod getSpreadMethod() const { return maSpreadMethod; }
     168             : 
     169             :             /// compare operator
     170             :             bool operator==(const SvgGradientHelper& rSvgGradientHelper) const;
     171             :         };
     172             :     } // end of namespace primitive2d
     173             : } // end of namespace drawinglayer
     174             : 
     175             : 
     176             : // SvgLinearGradientPrimitive2D class
     177             : 
     178             : namespace drawinglayer
     179             : {
     180             :     namespace primitive2d
     181             :     {
     182             :         /// the basic linear gradient primitive
     183             :         class DRAWINGLAYER_DLLPUBLIC SvgLinearGradientPrimitive2D : public BufferedDecompositionPrimitive2D, public SvgGradientHelper
     184             :         {
     185             :         private:
     186             :             /// the end point for linear gradient
     187             :             basegfx::B2DPoint                       maEnd;
     188             : 
     189             :         protected:
     190             :             /// local helpers
     191             :             virtual void createAtom(
     192             :                 Primitive2DVector& rTargetColor,
     193             :                 Primitive2DVector& rTargetOpacity,
     194             :                 const SvgGradientEntry& rFrom,
     195             :                 const SvgGradientEntry& rTo,
     196             :                 sal_Int32 nOffset) const SAL_OVERRIDE;
     197             :             virtual void checkPreconditions() SAL_OVERRIDE;
     198             : 
     199             :             /// local decomposition.
     200             :             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const SAL_OVERRIDE;
     201             : 
     202             :         public:
     203             :             /// constructor
     204             :             SvgLinearGradientPrimitive2D(
     205             :                 const basegfx::B2DHomMatrix& rGradientTransform,
     206             :                 const basegfx::B2DPolyPolygon& rPolyPolygon,
     207             :                 const SvgGradientEntryVector& rGradientEntries,
     208             :                 const basegfx::B2DPoint& rStart,
     209             :                 const basegfx::B2DPoint& rEnd,
     210             :                 bool bUseUnitCoordinates,
     211             :                 SpreadMethod aSpreadMethod = Spread_pad);
     212             :             virtual ~SvgLinearGradientPrimitive2D();
     213             : 
     214             :             /// data read access
     215        2290 :             const basegfx::B2DPoint& getEnd() const { return maEnd; }
     216             : 
     217             :             /// compare operator
     218             :             virtual bool operator==(const BasePrimitive2D& rPrimitive) const SAL_OVERRIDE;
     219             : 
     220             :             /// get range
     221             :             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const SAL_OVERRIDE;
     222             : 
     223             :             /// provide unique ID
     224             :             DeclPrimitive2DIDBlock()
     225             :         };
     226             :     } // end of namespace primitive2d
     227             : } // end of namespace drawinglayer
     228             : 
     229             : 
     230             : // SvgRadialGradientPrimitive2D class
     231             : 
     232             : namespace drawinglayer
     233             : {
     234             :     namespace primitive2d
     235             :     {
     236             :         /// the basic radial gradient primitive
     237             :         class DRAWINGLAYER_DLLPUBLIC SvgRadialGradientPrimitive2D : public BufferedDecompositionPrimitive2D, public SvgGradientHelper
     238             :         {
     239             :         private:
     240             :             /// the geometric definition
     241             :             double                                  mfRadius;
     242             : 
     243             :             /// Focal only used when focal is set at all, see constructors
     244             :             basegfx::B2DPoint                       maFocal;
     245             :             basegfx::B2DVector                      maFocalVector;
     246             :             double                                  maFocalLength;
     247             : 
     248             :             // internal helper for case Spread_reflect
     249             :             SvgGradientEntryVector                  maMirroredGradientEntries;
     250             : 
     251             :             /// bitfield
     252             :             bool                                    mbFocalSet : 1;
     253             : 
     254             :             /// local helpers
     255             :             const SvgGradientEntryVector& getMirroredGradientEntries() const;
     256             :             void createMirroredGradientEntries();
     257             : 
     258             :         protected:
     259             :             /// local helpers
     260             :             virtual void createAtom(
     261             :                 Primitive2DVector& rTargetColor,
     262             :                 Primitive2DVector& rTargetOpacity,
     263             :                 const SvgGradientEntry& rFrom,
     264             :                 const SvgGradientEntry& rTo,
     265             :                 sal_Int32 nOffset) const SAL_OVERRIDE;
     266             :             virtual void checkPreconditions() SAL_OVERRIDE;
     267             : 
     268             :             /// local decomposition.
     269             :             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const SAL_OVERRIDE;
     270             : 
     271             :         public:
     272             :             /// constructor
     273             :             SvgRadialGradientPrimitive2D(
     274             :                 const basegfx::B2DHomMatrix& rGradientTransform,
     275             :                 const basegfx::B2DPolyPolygon& rPolyPolygon,
     276             :                 const SvgGradientEntryVector& rGradientEntries,
     277             :                 const basegfx::B2DPoint& rStart,
     278             :                 double fRadius,
     279             :                 bool bUseUnitCoordinates,
     280             :                 SpreadMethod aSpreadMethod = Spread_pad,
     281             :                 const basegfx::B2DPoint* pFocal = 0);
     282             :             virtual ~SvgRadialGradientPrimitive2D();
     283             : 
     284             :             /// data read access
     285         198 :             double getRadius() const { return mfRadius; }
     286           0 :             const basegfx::B2DPoint& getFocal() const { return maFocal; }
     287         330 :             bool isFocalSet() const { return mbFocalSet; }
     288             : 
     289             :             /// compare operator
     290             :             virtual bool operator==(const BasePrimitive2D& rPrimitive) const SAL_OVERRIDE;
     291             : 
     292             :             /// get range
     293             :             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const SAL_OVERRIDE;
     294             : 
     295             :             /// provide unique ID
     296             :             DeclPrimitive2DIDBlock()
     297             :         };
     298             :     } // end of namespace primitive2d
     299             : } // end of namespace drawinglayer
     300             : 
     301             : 
     302             : // SvgLinearAtomPrimitive2D class
     303             : 
     304             : namespace drawinglayer
     305             : {
     306             :     namespace primitive2d
     307             :     {
     308             :         /*  basic primitive for a single linear GradientRun in unit coordiantes.
     309             :             It's derived from DiscreteMetricDependentPrimitive2D to allow view-dependent
     310             :             decompositions allowing reduced color steps
     311             :          **/
     312        6168 :         class DRAWINGLAYER_DLLPUBLIC SvgLinearAtomPrimitive2D : public DiscreteMetricDependentPrimitive2D
     313             :         {
     314             :         private:
     315             :             /// the geometric definition in unit coordiantes
     316             :             basegfx::BColor             maColorA;
     317             :             basegfx::BColor             maColorB;
     318             :             double                      mfOffsetA;
     319             :             double                      mfOffsetB;
     320             : 
     321             :         protected:
     322             : 
     323             :             /// local decomposition.
     324             :             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const SAL_OVERRIDE;
     325             : 
     326             :         public:
     327             :             /// constructor
     328             :             SvgLinearAtomPrimitive2D(
     329             :                 const basegfx::BColor& aColorA, double fOffsetA,
     330             :                 const basegfx::BColor& aColorB, double fOffsetB);
     331             : 
     332             :             /// data read access
     333        6144 :             const basegfx::BColor& getColorA() const { return maColorA; }
     334        6144 :             const basegfx::BColor& getColorB() const { return maColorB; }
     335       18432 :             double getOffsetA() const { return mfOffsetA; }
     336        6144 :             double getOffsetB() const { return mfOffsetB; }
     337             : 
     338             :             /// compare operator
     339             :             virtual bool operator==(const BasePrimitive2D& rPrimitive) const SAL_OVERRIDE;
     340             : 
     341             :             /// provide unique ID
     342             :             DeclPrimitive2DIDBlock()
     343             :         };
     344             :     } // end of namespace primitive2d
     345             : } // end of namespace drawinglayer
     346             : 
     347             : 
     348             : // SvgRadialAtomPrimitive2D class
     349             : 
     350             : namespace drawinglayer
     351             : {
     352             :     namespace primitive2d
     353             :     {
     354             :         /*  basic primitive for a single radial GradientRun in unit coordiantes.
     355             :             It's derived from DiscreteMetricDependentPrimitive2D to allow view-dependent
     356             :             decompositions allowing reduced color steps
     357             :          **/
     358             :         class DRAWINGLAYER_DLLPUBLIC SvgRadialAtomPrimitive2D : public DiscreteMetricDependentPrimitive2D
     359             :         {
     360             :         private:
     361             :             /// the geometric definition in unit coordiantes
     362             :             basegfx::BColor             maColorA;
     363             :             basegfx::BColor             maColorB;
     364             :             double                      mfScaleA;
     365             :             double                      mfScaleB;
     366             : 
     367             :             // helper to hold translation vectors when given (for focal)
     368           0 :             struct VectorPair
     369             :             {
     370             :                 basegfx::B2DVector          maTranslateA;
     371             :                 basegfx::B2DVector          maTranslateB;
     372             : 
     373           0 :                 VectorPair(const basegfx::B2DVector& rTranslateA, const basegfx::B2DVector& rTranslateB)
     374             :                 :   maTranslateA(rTranslateA),
     375           0 :                     maTranslateB(rTranslateB)
     376             :                 {
     377           0 :                 }
     378             :             };
     379             : 
     380             :             /// Only used when focal is set
     381             :             VectorPair*                 mpTranslate;
     382             : 
     383             :         protected:
     384             : 
     385             :             /// local decomposition.
     386             :             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const SAL_OVERRIDE;
     387             : 
     388             :         public:
     389             :             /// constructor
     390             :             SvgRadialAtomPrimitive2D(
     391             :                 const basegfx::BColor& aColorA, double fScaleA, const basegfx::B2DVector& rTranslateA,
     392             :                 const basegfx::BColor& aColorB, double fScaleB, const basegfx::B2DVector& rTranslateB);
     393             :             SvgRadialAtomPrimitive2D(
     394             :                 const basegfx::BColor& aColorA, double fScaleA,
     395             :                 const basegfx::BColor& aColorB, double fScaleB);
     396             :             virtual ~SvgRadialAtomPrimitive2D();
     397             : 
     398             :             /// data read access
     399         462 :             const basegfx::BColor& getColorA() const { return maColorA; }
     400         462 :             const basegfx::BColor& getColorB() const { return maColorB; }
     401         462 :             double getScaleA() const { return mfScaleA; }
     402        3789 :             double getScaleB() const { return mfScaleB; }
     403        3327 :             bool isTranslateSet() const { return (0 != mpTranslate); }
     404           0 :             basegfx::B2DVector getTranslateA() const { if(mpTranslate) return mpTranslate->maTranslateA; return basegfx::B2DVector(); }
     405           0 :             basegfx::B2DVector getTranslateB() const { if(mpTranslate) return mpTranslate->maTranslateB; return basegfx::B2DVector(); }
     406             : 
     407             :             /// compare operator
     408             :             virtual bool operator==(const BasePrimitive2D& rPrimitive) const SAL_OVERRIDE;
     409             : 
     410             :             /// provide unique ID
     411             :             DeclPrimitive2DIDBlock()
     412             :         };
     413             :     } // end of namespace primitive2d
     414             : } // end of namespace drawinglayer
     415             : 
     416             : 
     417             : 
     418             : #endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_SVGGRADIENTPRIMITIVE2D_HXX
     419             : 
     420             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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