| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the 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 |
