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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_GRIDPRIMITIVE2D_HXX
#define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_GRIDPRIMITIVE2D_HXX
#include <drawinglayer/drawinglayerdllapi.h>
#include <drawinglayer/primitive2d/baseprimitive2d.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/color/bcolor.hxx>
#include <vcl/bitmapex.hxx>
//////////////////////////////////////////////////////////////////////////////
// GridPrimitive2D class
namespace drawinglayer
{
namespace primitive2d
{
/** GridPrimitive2D class
This primitive is specialized to Grid visualisation. The graphic definition
(Transform) contains the whole grid area, but will of course be combined
with the visible area (Viewport) when decomposed. Also a reolution-dependent
point reduction is used to not create too much grid visualisation data. This
makes this primitive highly view-dependent and it dynamically buffers
the last decomposition dependent from the Viewport used.
*/
class DRAWINGLAYER_DLLPUBLIC GridPrimitive2D : public BufferedDecompositionPrimitive2D
{
private:
/// The geometry definition for the grid area
basegfx::B2DHomMatrix maTransform;
/// grid layout definitions
double mfWidth;
double mfHeight;
double mfSmallestViewDistance;
double mfSmallestSubdivisionViewDistance;
sal_uInt32 mnSubdivisionsX;
sal_uInt32 mnSubdivisionsY;
/// Grid color for single-pixel grid points
basegfx::BColor maBColor;
/// The Bitmap (with transparence) for grid cross points
BitmapEx maCrossMarker;
/** the last used object to view transformtion and the last Viewport,
used from getDecomposition for decide buffering
*/
basegfx::B2DHomMatrix maLastObjectToViewTransformation;
basegfx::B2DRange maLastViewport;
protected:
/// create local decomposition
virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
public:
/// constructor
GridPrimitive2D(
const basegfx::B2DHomMatrix& rTransform,
double fWidth,
double fHeight,
double fSmallestViewDistance,
double fSmallestSubdivisionViewDistance,
sal_uInt32 nSubdivisionsX,
sal_uInt32 nSubdivisionsY,
const basegfx::BColor& rBColor,
const BitmapEx& rCrossMarker);
/// data read access
const basegfx::B2DHomMatrix& getTransform() const { return maTransform; }
double getWidth() const { return mfWidth; }
double getHeight() const { return mfHeight; }
double getSmallestViewDistance() const { return mfSmallestViewDistance; }
double getSmallestSubdivisionViewDistance() const { return mfSmallestSubdivisionViewDistance; }
sal_uInt32 getSubdivisionsX() const { return mnSubdivisionsX; }
sal_uInt32 getSubdivisionsY() const { return mnSubdivisionsY; }
const basegfx::BColor& getBColor() const { return maBColor; }
const BitmapEx& getCrossMarker() const { return maCrossMarker; }
/// compare operator
virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
/// get 2d range
virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
/// provide unique ID
DeclPrimitrive2DIDBlock()
/// Overload standard getDecomposition call to be view-dependent here
virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
};
} // end of namespace primitive2d
} // end of namespace drawinglayer
//////////////////////////////////////////////////////////////////////////////
#endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_GRIDPRIMITIVE2D_HXX
//////////////////////////////////////////////////////////////////////////////
// eof
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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