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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_GRIDPRIMITIVE2D_HXX
      21             : #define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_GRIDPRIMITIVE2D_HXX
      22             : 
      23             : #include <drawinglayer/drawinglayerdllapi.h>
      24             : 
      25             : #include <drawinglayer/primitive2d/baseprimitive2d.hxx>
      26             : #include <basegfx/matrix/b2dhommatrix.hxx>
      27             : #include <basegfx/color/bcolor.hxx>
      28             : #include <vcl/bitmapex.hxx>
      29             : 
      30             : //////////////////////////////////////////////////////////////////////////////
      31             : // GridPrimitive2D class
      32             : 
      33             : namespace drawinglayer
      34             : {
      35             :     namespace primitive2d
      36             :     {
      37             :         /** GridPrimitive2D class
      38             : 
      39             :             This primitive is specialized to Grid visualisation. The graphic definition
      40             :             (Transform) contains the whole grid area, but will of course be combined
      41             :             with the visible area (Viewport) when decomposed. Also a reolution-dependent
      42             :             point reduction is used to not create too much grid visualisation data. This
      43             :             makes this primitive highly view-dependent and it dynamically buffers
      44             :             the last decomposition dependent from the Viewport used.
      45             :          */
      46           4 :         class DRAWINGLAYER_DLLPUBLIC GridPrimitive2D : public BufferedDecompositionPrimitive2D
      47             :         {
      48             :         private:
      49             :             /// The geometry definition for the grid area
      50             :             basegfx::B2DHomMatrix                           maTransform;
      51             : 
      52             :             /// grid layout definitions
      53             :             double                                          mfWidth;
      54             :             double                                          mfHeight;
      55             :             double                                          mfSmallestViewDistance;
      56             :             double                                          mfSmallestSubdivisionViewDistance;
      57             :             sal_uInt32                                      mnSubdivisionsX;
      58             :             sal_uInt32                                      mnSubdivisionsY;
      59             : 
      60             :             /// Grid color for single-pixel grid points
      61             :             basegfx::BColor                                 maBColor;
      62             : 
      63             :             /// The Bitmap (with transparence) for grid cross points
      64             :             BitmapEx                                        maCrossMarker;
      65             : 
      66             :             /** the last used object to view transformtion and the last Viewport,
      67             :                 used from getDecomposition for decide buffering
      68             :              */
      69             :             basegfx::B2DHomMatrix                           maLastObjectToViewTransformation;
      70             :             basegfx::B2DRange                               maLastViewport;
      71             : 
      72             :         protected:
      73             :             /// create local decomposition
      74             :             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
      75             : 
      76             :         public:
      77             :             /// constructor
      78             :             GridPrimitive2D(
      79             :                 const basegfx::B2DHomMatrix& rTransform,
      80             :                 double fWidth,
      81             :                 double fHeight,
      82             :                 double fSmallestViewDistance,
      83             :                 double fSmallestSubdivisionViewDistance,
      84             :                 sal_uInt32 nSubdivisionsX,
      85             :                 sal_uInt32 nSubdivisionsY,
      86             :                 const basegfx::BColor& rBColor,
      87             :                 const BitmapEx& rCrossMarker);
      88             : 
      89             :             /// data read access
      90          10 :             const basegfx::B2DHomMatrix& getTransform() const { return maTransform; }
      91           4 :             double getWidth() const { return mfWidth; }
      92           4 :             double getHeight() const { return mfHeight; }
      93           4 :             double getSmallestViewDistance() const { return mfSmallestViewDistance; }
      94           4 :             double getSmallestSubdivisionViewDistance() const { return mfSmallestSubdivisionViewDistance; }
      95           4 :             sal_uInt32 getSubdivisionsX() const { return mnSubdivisionsX; }
      96           4 :             sal_uInt32 getSubdivisionsY() const { return mnSubdivisionsY; }
      97           4 :             const basegfx::BColor& getBColor() const { return maBColor; }
      98           4 :             const BitmapEx& getCrossMarker() const { return maCrossMarker; }
      99             : 
     100             :             /// compare operator
     101             :             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
     102             : 
     103             :             /// get 2d range
     104             :             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
     105             : 
     106             :             /// provide unique ID
     107             :             DeclPrimitrive2DIDBlock()
     108             : 
     109             :             /// Overload standard getDecomposition call to be view-dependent here
     110             :             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
     111             :         };
     112             :     } // end of namespace primitive2d
     113             : } // end of namespace drawinglayer
     114             : 
     115             : //////////////////////////////////////////////////////////////////////////////
     116             : 
     117             : #endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_GRIDPRIMITIVE2D_HXX
     118             : 
     119             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */