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Diffstat (limited to 'drawinglayer/source/primitive2d/gridprimitive2d.cxx')
| -rw-r--r-- | drawinglayer/source/primitive2d/gridprimitive2d.cxx | 302 |
1 files changed, 302 insertions, 0 deletions
diff --git a/drawinglayer/source/primitive2d/gridprimitive2d.cxx b/drawinglayer/source/primitive2d/gridprimitive2d.cxx new file mode 100644 index 000000000000..9bb9d88fefd7 --- /dev/null +++ b/drawinglayer/source/primitive2d/gridprimitive2d.cxx @@ -0,0 +1,302 @@ +/************************************************************************* + * + * OpenOffice.org - a multi-platform office productivity suite + * + * $RCSfile: gridprimitive2d.cxx,v $ + * + * $Revision: 1.1 $ + * + * last change: $Author: aw $ $Date: 2006-10-19 10:35:02 $ + * + * The Contents of this file are made available subject to + * the terms of GNU Lesser General Public License Version 2.1. + * + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2005 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * This library 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 for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + ************************************************************************/ + +#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_GRIDPRIMITIVE2D_HXX +#include <drawinglayer/primitive2d/gridprimitive2d.hxx> +#endif + +#ifndef _BGFX_TOOLS_CANVASTOOLS_HXX +#include <basegfx/tools/canvastools.hxx> +#endif + +#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_MARKERPRIMITIVE2D_HXX +#include <drawinglayer/primitive2d/markerprimitive2d.hxx> +#endif + +#ifndef INCLUDED_DRAWINGLAYER_GEOMETRY_VIEWINFORMATION2D_HXX +#include <drawinglayer/geometry/viewinformation2d.hxx> +#endif + +////////////////////////////////////////////////////////////////////////////// + +using namespace com::sun::star; + +////////////////////////////////////////////////////////////////////////////// + +namespace drawinglayer +{ + namespace primitive2d + { + Primitive2DSequence GridPrimitive2D::createLocalDecomposition(const geometry::ViewInformation2D& rViewInformation) const + { + std::vector< BasePrimitive2D* > aTempPrimitiveTarget; + + if(!rViewInformation.getViewport().isEmpty() && getWidth() > 0.0 && getHeight() > 0.0) + { + // decompose grid matrix to get logic size + basegfx::B2DVector aScale, aTranslate; + double fRotate, fShearX; + getTransform().decompose(aScale, aTranslate, fRotate, fShearX); + + // create grid matrix which transforms from scaled logic to view + basegfx::B2DHomMatrix aRST; + aRST.rotate(fRotate); + aRST.shearX(fShearX); + aRST.translate(aTranslate.getX(), aTranslate.getY()); + aRST *= rViewInformation.getViewTransformation(); + + // get step widths + double fStepX(getWidth()); + double fStepY(getHeight()); + const double fMinimalStep(10.0); + + // guarantee a step width of 100.0 + if(basegfx::fTools::less(fStepX, fMinimalStep)) + { + fStepX = fMinimalStep; + } + + if(basegfx::fTools::less(fStepY, fMinimalStep)) + { + fStepY = fMinimalStep; + } + + // get relative distances in view + double fViewStepX((rViewInformation.getViewTransformation() * basegfx::B2DVector(fStepX, 0.0)).getLength()); + double fViewStepY((rViewInformation.getViewTransformation() * basegfx::B2DVector(0.0, fStepY)).getLength()); + double fSmallStepX(1.0), fViewSmallStepX(1.0), fSmallStepY(1.0), fViewSmallStepY(1.0); + sal_uInt32 nSmallStepsX(0L), nSmallStepsY(0L); + + // setup subdivisions + if(getSubdivisionsX()) + { + fSmallStepX = fStepX / getSubdivisionsX(); + fViewSmallStepX = fViewStepX / getSubdivisionsX(); + } + + if(getSubdivisionsY()) + { + fSmallStepY = fStepY / getSubdivisionsY(); + fViewSmallStepY = fViewStepY / getSubdivisionsY(); + } + + // correct step width + while(fViewStepX < getSmallestViewDistance()) + { + fViewStepX *= 2.0; + fStepX *= 2.0; + } + + while(fViewStepY < getSmallestViewDistance()) + { + fViewStepY *= 2.0; + fStepY *= 2.0; + } + + // correct small step width + if(getSubdivisionsX()) + { + while(fViewSmallStepX < getSmallestSubdivisionViewDistance()) + { + fViewSmallStepX *= 2.0; + fSmallStepX *= 2.0; + } + + nSmallStepsX = (sal_uInt32)(fStepX / fSmallStepX); + } + + if(getSubdivisionsY()) + { + while(fViewSmallStepY < getSmallestSubdivisionViewDistance()) + { + fViewSmallStepY *= 2.0; + fSmallStepY *= 2.0; + } + + nSmallStepsY = (sal_uInt32)(fStepY / fSmallStepY); + } + + for(double fX(0.0); fX < aScale.getX(); fX += fStepX) + { + const bool bXZero(basegfx::fTools::equalZero(fX)); + + for(double fY(0.0); fY < aScale.getY(); fY += fStepY) + { + const bool bYZero(basegfx::fTools::equalZero(fY)); + basegfx::B2DPoint aViewPos(aRST * basegfx::B2DPoint(fX, fY)); + + if(rViewInformation.getDiscreteViewport().isInside(aViewPos) && !bXZero && !bYZero) + { + const basegfx::B2DPoint aLogicPos(rViewInformation.getInverseViewTransformation() * aViewPos); + MarkerPrimitive2D* pNew = new MarkerPrimitive2D(aLogicPos, 0.5, 0.5, getBColor(), MARKERSTYLE2D_CROSS); + aTempPrimitiveTarget.push_back(pNew); + } + + if(getSubdivisionsX() && !bYZero) + { + double fF(fX + fSmallStepX); + + for(sal_uInt32 a(0L); a < nSmallStepsX && fF < aScale.getX(); a++, fF += fSmallStepX) + { + aViewPos = aRST * basegfx::B2DPoint(fF, fY); + + if(rViewInformation.getDiscreteViewport().isInside(aViewPos)) + { + const basegfx::B2DPoint aLogicPos(rViewInformation.getInverseViewTransformation() * aViewPos); + MarkerPrimitive2D* pNew = new MarkerPrimitive2D(aLogicPos, 0.5, 0.5, getBColor(), MARKERSTYLE2D_POINT); + aTempPrimitiveTarget.push_back(pNew); + } + } + } + + if(getSubdivisionsY() && !bXZero) + { + double fF(fY + fSmallStepY); + + for(sal_uInt32 a(0L); a < nSmallStepsY && fF < aScale.getY(); a++, fF += fSmallStepY) + { + aViewPos = aRST * basegfx::B2DPoint(fX, fF); + + if(rViewInformation.getDiscreteViewport().isInside(aViewPos)) + { + const basegfx::B2DPoint aLogicPos(rViewInformation.getInverseViewTransformation() * aViewPos); + MarkerPrimitive2D* pNew = new MarkerPrimitive2D(aLogicPos, 0.5, 0.5, getBColor(), MARKERSTYLE2D_POINT); + aTempPrimitiveTarget.push_back(pNew); + } + } + } + } + } + } + + // prepare return value + Primitive2DSequence aRetval(aTempPrimitiveTarget.size()); + + for(sal_uInt32 a(0L); a < aTempPrimitiveTarget.size(); a++) + { + const Primitive2DReference xRef(aTempPrimitiveTarget[a]); + aRetval[a] = xRef; + } + + return aRetval; + } + + GridPrimitive2D::GridPrimitive2D( + const basegfx::B2DHomMatrix& rTransform, + double fWidth, + double fHeight, + double fSmallestViewDistance, + double fSmallestSubdivisionViewDistance, + sal_uInt32 nSubdivisionsX, + sal_uInt32 nSubdivisionsY, + const basegfx::BColor& rBColor) + : BasePrimitive2D(), + maTransform(rTransform), + mfWidth(fWidth), + mfHeight(fHeight), + mfSmallestViewDistance(fSmallestViewDistance), + mfSmallestSubdivisionViewDistance(fSmallestSubdivisionViewDistance), + mnSubdivisionsX(nSubdivisionsX), + mnSubdivisionsY(nSubdivisionsY), + maBColor(rBColor), + maLastViewTransformation(), + maLastViewport() + { + } + + bool GridPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const + { + if(BasePrimitive2D::operator==(rPrimitive)) + { + const GridPrimitive2D& rCompare = (GridPrimitive2D&)rPrimitive; + + return (getTransform() == rCompare.getTransform() + && getWidth() == rCompare.getWidth() + && getHeight() == rCompare.getHeight() + && getSmallestViewDistance() == rCompare.getSmallestViewDistance() + && getSmallestSubdivisionViewDistance() == rCompare.getSmallestSubdivisionViewDistance() + && getSubdivisionsX() == rCompare.getSubdivisionsX() + && getSubdivisionsY() == rCompare.getSubdivisionsY() + && getBColor() == rCompare.getBColor()); + } + + return false; + } + + basegfx::B2DRange GridPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const + { + // get object's range + basegfx::B2DRange aUnitRange(0.0, 0.0, 1.0, 1.0); + aUnitRange.transform(getTransform()); + + // intersect with visible part + aUnitRange.intersect(rViewInformation.getViewport()); + + return aUnitRange; + } + + sal_uInt32 GridPrimitive2D::getPrimitiveID() const + { + return Create2DPrimitiveID('2','G','r','i'); + } + + Primitive2DSequence GridPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const + { + ::osl::MutexGuard aGuard( m_aMutex ); + + if(getLocalDecomposition().hasElements()) + { + if(maLastViewport != rViewInformation.getViewport() || maLastViewTransformation != rViewInformation.getViewTransformation()) + { + // conditions of last local decomposition have changed, delete + const_cast< GridPrimitive2D* >(this)->setLocalDecomposition(Primitive2DSequence()); + } + } + + if(!getLocalDecomposition().hasElements()) + { + // remember ViewRange and ViewTransformation + const_cast< GridPrimitive2D* >(this)->maLastViewTransformation = rViewInformation.getViewTransformation(); + const_cast< GridPrimitive2D* >(this)->maLastViewport = rViewInformation.getViewport(); + } + + // use parent implementation + return BasePrimitive2D::get2DDecomposition(rViewInformation); + } + } // end of namespace primitive2d +} // end of namespace drawinglayer + +////////////////////////////////////////////////////////////////////////////// +// eof |