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Diffstat (limited to 'drawinglayer/source/primitive2d/helplineprimitive2d.cxx')
| -rw-r--r-- | drawinglayer/source/primitive2d/helplineprimitive2d.cxx | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/drawinglayer/source/primitive2d/helplineprimitive2d.cxx b/drawinglayer/source/primitive2d/helplineprimitive2d.cxx new file mode 100644 index 000000000000..69e40ac5799b --- /dev/null +++ b/drawinglayer/source/primitive2d/helplineprimitive2d.cxx @@ -0,0 +1,222 @@ +/************************************************************************* + * + * 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. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_drawinglayer.hxx" + +#include <drawinglayer/primitive2d/helplineprimitive2d.hxx> +#include <basegfx/polygon/b2dpolygon.hxx> +#include <drawinglayer/primitive2d/polygonprimitive2d.hxx> +#include <basegfx/polygon/b2dpolygonclipper.hxx> +#include <basegfx/tools/canvastools.hxx> +#include <drawinglayer/geometry/viewinformation2d.hxx> +#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx> + +////////////////////////////////////////////////////////////////////////////// + +using namespace com::sun::star; + +////////////////////////////////////////////////////////////////////////////// + +namespace drawinglayer +{ + namespace primitive2d + { + Primitive2DSequence HelplinePrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const + { + std::vector< BasePrimitive2D* > aTempPrimitiveTarget; + + if(!rViewInformation.getViewport().isEmpty() && !getDirection().equalZero()) + { + // position to view coordinates, DashLen and DashLen in logic + const basegfx::B2DPoint aViewPosition(rViewInformation.getObjectToViewTransformation() * getPosition()); + + switch(getStyle()) + { + default : // HELPLINESTYLE2D_POINT + { + const double fViewFixValue(15.0); + basegfx::B2DVector aNormalizedDirection(getDirection()); + aNormalizedDirection.normalize(); + aNormalizedDirection *= fViewFixValue; + const basegfx::B2DPoint aStartA(aViewPosition - aNormalizedDirection); + const basegfx::B2DPoint aEndA(aViewPosition + aNormalizedDirection); + basegfx::B2DPolygon aLineA; + aLineA.append(aStartA); + aLineA.append(aEndA); + aLineA.transform(rViewInformation.getInverseObjectToViewTransformation()); + PolygonMarkerPrimitive2D* pNewA = new PolygonMarkerPrimitive2D(aLineA, getRGBColA(), getRGBColB(), getDiscreteDashLength()); + aTempPrimitiveTarget.push_back(pNewA); + + const basegfx::B2DVector aPerpendicularNormalizedDirection(basegfx::getPerpendicular(aNormalizedDirection)); + const basegfx::B2DPoint aStartB(aViewPosition - aPerpendicularNormalizedDirection); + const basegfx::B2DPoint aEndB(aViewPosition + aPerpendicularNormalizedDirection); + basegfx::B2DPolygon aLineB; + aLineB.append(aStartB); + aLineB.append(aEndB); + aLineB.transform(rViewInformation.getInverseObjectToViewTransformation()); + PolygonMarkerPrimitive2D* pNewB = new PolygonMarkerPrimitive2D(aLineB, getRGBColA(), getRGBColB(), getDiscreteDashLength()); + aTempPrimitiveTarget.push_back(pNewB); + + break; + } + case HELPLINESTYLE2D_LINE : + { + basegfx::B2DPolygon aLine; + + if(basegfx::areParallel(getDirection(), basegfx::B2DVector(1.0, 0.0))) + { + // parallel to X-Axis, get cuts with Y-Axes + const double fCutA((rViewInformation.getDiscreteViewport().getMinX() - aViewPosition.getX()) / getDirection().getX()); + const double fCutB((rViewInformation.getDiscreteViewport().getMaxX() - aViewPosition.getX()) / getDirection().getX()); + const basegfx::B2DPoint aPosA(aViewPosition + (fCutA * getDirection())); + const basegfx::B2DPoint aPosB(aViewPosition + (fCutB * getDirection())); + const bool bBothLeft(aPosA.getX() < rViewInformation.getDiscreteViewport().getMinX() && aPosB.getX() < rViewInformation.getDiscreteViewport().getMinX()); + const bool bBothRight(aPosA.getX() > rViewInformation.getDiscreteViewport().getMaxX() && aPosB.getX() < rViewInformation.getDiscreteViewport().getMaxX()); + + if(!bBothLeft && !bBothRight) + { + aLine.append(aPosA); + aLine.append(aPosB); + } + } + else + { + // get cuts with X-Axes + const double fCutA((rViewInformation.getDiscreteViewport().getMinY() - aViewPosition.getY()) / getDirection().getY()); + const double fCutB((rViewInformation.getDiscreteViewport().getMaxY() - aViewPosition.getY()) / getDirection().getY()); + const basegfx::B2DPoint aPosA(aViewPosition + (fCutA * getDirection())); + const basegfx::B2DPoint aPosB(aViewPosition + (fCutB * getDirection())); + const bool bBothAbove(aPosA.getY() < rViewInformation.getDiscreteViewport().getMinY() && aPosB.getY() < rViewInformation.getDiscreteViewport().getMinY()); + const bool bBothBelow(aPosA.getY() > rViewInformation.getDiscreteViewport().getMaxY() && aPosB.getY() < rViewInformation.getDiscreteViewport().getMaxY()); + + if(!bBothAbove && !bBothBelow) + { + aLine.append(aPosA); + aLine.append(aPosB); + } + } + + if(aLine.count()) + { + // clip against visible area + const basegfx::B2DPolyPolygon aResult(basegfx::tools::clipPolygonOnRange(aLine, rViewInformation.getDiscreteViewport(), true, true)); + + for(sal_uInt32 a(0L); a < aResult.count(); a++) + { + basegfx::B2DPolygon aPart(aResult.getB2DPolygon(a)); + aPart.transform(rViewInformation.getInverseObjectToViewTransformation()); + PolygonMarkerPrimitive2D* pNew = new PolygonMarkerPrimitive2D(aPart, getRGBColA(), getRGBColB(), getDiscreteDashLength()); + aTempPrimitiveTarget.push_back(pNew); + } + } + + break; + } + } + } + + // 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; + } + + HelplinePrimitive2D::HelplinePrimitive2D( + const basegfx::B2DPoint& rPosition, + const basegfx::B2DVector& rDirection, + HelplineStyle2D eStyle, + const basegfx::BColor& rRGBColA, + const basegfx::BColor& rRGBColB, + double fDiscreteDashLength) + : BufferedDecompositionPrimitive2D(), + maPosition(rPosition), + maDirection(rDirection), + meStyle(eStyle), + maRGBColA(rRGBColA), + maRGBColB(rRGBColB), + mfDiscreteDashLength(fDiscreteDashLength), + maLastObjectToViewTransformation(), + maLastViewport() + { + } + + bool HelplinePrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const + { + if(BufferedDecompositionPrimitive2D::operator==(rPrimitive)) + { + const HelplinePrimitive2D& rCompare = (HelplinePrimitive2D&)rPrimitive; + + return (getPosition() == rCompare.getPosition() + && getDirection() == rCompare.getDirection() + && getStyle() == rCompare.getStyle() + && getRGBColA() == rCompare.getRGBColA() + && getRGBColB() == rCompare.getRGBColB() + && getDiscreteDashLength() == rCompare.getDiscreteDashLength()); + } + + return false; + } + + Primitive2DSequence HelplinePrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const + { + ::osl::MutexGuard aGuard( m_aMutex ); + + if(getBuffered2DDecomposition().hasElements()) + { + if(maLastViewport != rViewInformation.getViewport() || maLastObjectToViewTransformation != rViewInformation.getObjectToViewTransformation()) + { + // conditions of last local decomposition have changed, delete + const_cast< HelplinePrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DSequence()); + } + } + + if(!getBuffered2DDecomposition().hasElements()) + { + // remember ViewRange and ViewTransformation + const_cast< HelplinePrimitive2D* >(this)->maLastObjectToViewTransformation = rViewInformation.getObjectToViewTransformation(); + const_cast< HelplinePrimitive2D* >(this)->maLastViewport = rViewInformation.getViewport(); + } + + // use parent implementation + return BufferedDecompositionPrimitive2D::get2DDecomposition(rViewInformation); + } + + // provide unique ID + ImplPrimitrive2DIDBlock(HelplinePrimitive2D, PRIMITIVE2D_ID_HELPLINEPRIMITIVE2D) + + } // end of namespace primitive2d +} // end of namespace drawinglayer + +////////////////////////////////////////////////////////////////////////////// +// eof |