246 lines
11 KiB
C++
246 lines
11 KiB
C++
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/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: helplineprimitive2d.cxx,v $
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*
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* $Revision: 1.1 $
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*
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* last change: $Author: aw $ $Date: 2006-10-19 10:35:03 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_HELPLINEPRIMITIVE2D_HXX
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#include <drawinglayer/primitive2d/helplineprimitive2d.hxx>
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#endif
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#ifndef _BGFX_POLYGON_B2DPOLYGON_HXX
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#include <basegfx/polygon/b2dpolygon.hxx>
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#endif
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#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_POLYGONPRIMITIVE2D_HXX
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#include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
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#endif
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#ifndef _BGFX_POLYPOLYGON_B2DPOLYGONCLIPPER_HXX
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#include <basegfx/polygon/b2dpolygonclipper.hxx>
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#endif
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#ifndef _BGFX_TOOLS_CANVASTOOLS_HXX
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#include <basegfx/tools/canvastools.hxx>
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#endif
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#ifndef INCLUDED_DRAWINGLAYER_GEOMETRY_VIEWINFORMATION2D_HXX
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#include <drawinglayer/geometry/viewinformation2d.hxx>
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#endif
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//////////////////////////////////////////////////////////////////////////////
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using namespace com::sun::star;
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//////////////////////////////////////////////////////////////////////////////
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namespace drawinglayer
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{
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namespace primitive2d
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{
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Primitive2DSequence HelplinePrimitive2D::createLocalDecomposition(const geometry::ViewInformation2D& rViewInformation) const
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{
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std::vector< BasePrimitive2D* > aTempPrimitiveTarget;
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if(!rViewInformation.getViewport().isEmpty() && !getDirection().equalZero())
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{
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// position to view coordinates, DashLen and DashLen in logic
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const basegfx::B2DPoint aViewPosition(rViewInformation.getViewTransformation() * getPosition());
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const double fLogicDashLen((rViewInformation.getInverseViewTransformation() * basegfx::B2DVector(getViewDashLength(), 0.0)).getLength());
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switch(getStyle())
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{
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default : // HELPLINESTYLE2D_POINT
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{
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const double fViewFixValue(15.0);
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basegfx::B2DVector aNormalizedDirection(getDirection());
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aNormalizedDirection.normalize();
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aNormalizedDirection *= fViewFixValue;
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const basegfx::B2DPoint aStartA(aViewPosition - aNormalizedDirection);
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const basegfx::B2DPoint aEndA(aViewPosition + aNormalizedDirection);
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basegfx::B2DPolygon aLineA;
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aLineA.append(aStartA);
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aLineA.append(aEndA);
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aLineA.transform(rViewInformation.getInverseViewTransformation());
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PolygonMarkerPrimitive2D* pNewA = new PolygonMarkerPrimitive2D(aLineA, getRGBColA(), getRGBColB(), fLogicDashLen);
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aTempPrimitiveTarget.push_back(pNewA);
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const basegfx::B2DVector aPerpendicularNormalizedDirection(getPerpendicular(aNormalizedDirection));
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const basegfx::B2DPoint aStartB(aViewPosition - aPerpendicularNormalizedDirection);
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const basegfx::B2DPoint aEndB(aViewPosition + aPerpendicularNormalizedDirection);
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basegfx::B2DPolygon aLineB;
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aLineB.append(aStartB);
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aLineB.append(aEndB);
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aLineB.transform(rViewInformation.getInverseViewTransformation());
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PolygonMarkerPrimitive2D* pNewB = new PolygonMarkerPrimitive2D(aLineB, getRGBColA(), getRGBColB(), fLogicDashLen);
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aTempPrimitiveTarget.push_back(pNewB);
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break;
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}
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case HELPLINESTYLE2D_LINE :
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{
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basegfx::B2DPolygon aLine;
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if(basegfx::areParallel(getDirection(), basegfx::B2DVector(1.0, 0.0)))
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{
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// parallel to X-Axis, get cuts with Y-Axes
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const double fCutA((rViewInformation.getDiscreteViewport().getMinX() - aViewPosition.getX()) / getDirection().getX());
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const double fCutB((rViewInformation.getDiscreteViewport().getMaxX() - aViewPosition.getX()) / getDirection().getX());
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const basegfx::B2DPoint aPosA(aViewPosition + (fCutA * getDirection()));
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const basegfx::B2DPoint aPosB(aViewPosition + (fCutB * getDirection()));
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const bool bBothLeft(aPosA.getX() < rViewInformation.getDiscreteViewport().getMinX() && aPosB.getX() < rViewInformation.getDiscreteViewport().getMinX());
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const bool bBothRight(aPosA.getX() > rViewInformation.getDiscreteViewport().getMaxX() && aPosB.getX() < rViewInformation.getDiscreteViewport().getMaxX());
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if(!bBothLeft && !bBothRight)
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{
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aLine.append(aPosA);
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aLine.append(aPosB);
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}
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}
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else
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{
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// get cuts with X-Axes
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const double fCutA((rViewInformation.getDiscreteViewport().getMinY() - aViewPosition.getY()) / getDirection().getY());
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const double fCutB((rViewInformation.getDiscreteViewport().getMaxY() - aViewPosition.getY()) / getDirection().getY());
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const basegfx::B2DPoint aPosA(aViewPosition + (fCutA * getDirection()));
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const basegfx::B2DPoint aPosB(aViewPosition + (fCutB * getDirection()));
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const bool bBothAbove(aPosA.getY() < rViewInformation.getDiscreteViewport().getMinY() && aPosB.getY() < rViewInformation.getDiscreteViewport().getMinY());
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const bool bBothBelow(aPosA.getY() > rViewInformation.getDiscreteViewport().getMaxY() && aPosB.getY() < rViewInformation.getDiscreteViewport().getMaxY());
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if(!bBothAbove && !bBothBelow)
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{
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aLine.append(aPosA);
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aLine.append(aPosB);
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}
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}
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if(aLine.count())
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{
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// clip against visible area
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const basegfx::B2DPolyPolygon aResult(basegfx::tools::clipPolygonOnRange(aLine, rViewInformation.getDiscreteViewport(), true, true));
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for(sal_uInt32 a(0L); a < aResult.count(); a++)
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{
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basegfx::B2DPolygon aPart(aResult.getB2DPolygon(a));
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aPart.transform(rViewInformation.getInverseViewTransformation());
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PolygonMarkerPrimitive2D* pNew = new PolygonMarkerPrimitive2D(aPart, getRGBColA(), getRGBColB(), fLogicDashLen);
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aTempPrimitiveTarget.push_back(pNew);
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}
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}
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break;
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}
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}
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}
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// prepare return value
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Primitive2DSequence aRetval(aTempPrimitiveTarget.size());
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for(sal_uInt32 a(0L); a < aTempPrimitiveTarget.size(); a++)
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{
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const Primitive2DReference xRef(aTempPrimitiveTarget[a]);
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aRetval[a] = xRef;
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}
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return aRetval;
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}
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HelplinePrimitive2D::HelplinePrimitive2D(
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const basegfx::B2DPoint& rPosition,
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const basegfx::B2DVector& rDirection,
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HelplineStyle2D eStyle,
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const basegfx::BColor& rRGBColA,
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const basegfx::BColor& rRGBColB,
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double fViewDashLength)
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: BasePrimitive2D(),
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maPosition(rPosition),
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maDirection(rDirection),
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meStyle(eStyle),
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maRGBColA(rRGBColA),
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maRGBColB(rRGBColB),
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mfViewDashLength(fViewDashLength),
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maLastViewTransformation(),
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maLastViewport()
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{
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}
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bool HelplinePrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
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{
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if(BasePrimitive2D::operator==(rPrimitive))
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{
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const HelplinePrimitive2D& rCompare = (HelplinePrimitive2D&)rPrimitive;
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return (getPosition() == rCompare.getPosition()
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&& getDirection() == rCompare.getDirection()
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&& getStyle() == rCompare.getStyle()
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&& getRGBColA() == rCompare.getRGBColA()
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&& getRGBColB() == rCompare.getRGBColB()
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&& getViewDashLength() == rCompare.getViewDashLength());
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}
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return false;
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}
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sal_uInt32 HelplinePrimitive2D::getPrimitiveID() const
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{
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return Create2DPrimitiveID('2','H','e','l');
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}
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Primitive2DSequence HelplinePrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if(getLocalDecomposition().hasElements())
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{
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if(maLastViewport != rViewInformation.getViewport() || maLastViewTransformation != rViewInformation.getViewTransformation())
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{
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// conditions of last local decomposition have changed, delete
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const_cast< HelplinePrimitive2D* >(this)->setLocalDecomposition(Primitive2DSequence());
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}
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}
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if(!getLocalDecomposition().hasElements())
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{
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// remember ViewRange and ViewTransformation
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const_cast< HelplinePrimitive2D* >(this)->maLastViewTransformation = rViewInformation.getViewTransformation();
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const_cast< HelplinePrimitive2D* >(this)->maLastViewport = rViewInformation.getViewport();
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}
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// use parent implementation
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return BasePrimitive2D::get2DDecomposition(rViewInformation);
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}
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} // end of namespace primitive2d
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} // end of namespace drawinglayer
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//////////////////////////////////////////////////////////////////////////////
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// eof
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