| /************************************************************** |
| * |
| * 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_chart2.hxx" |
| |
| #include "PolarLabelPositionHelper.hxx" |
| #include "PlottingPositionHelper.hxx" |
| #include "CommonConverters.hxx" |
| #include <basegfx/vector/b2dvector.hxx> |
| #include <basegfx/vector/b2ivector.hxx> |
| |
| #include <com/sun/star/chart/DataLabelPlacement.hpp> |
| |
| //............................................................................. |
| namespace chart |
| { |
| //............................................................................. |
| using namespace ::com::sun::star; |
| using namespace ::com::sun::star::chart2; |
| |
| PolarLabelPositionHelper::PolarLabelPositionHelper( |
| PolarPlottingPositionHelper* pPosHelper |
| , sal_Int32 nDimensionCount |
| , const uno::Reference< drawing::XShapes >& xLogicTarget |
| , ShapeFactory* pShapeFactory ) |
| : LabelPositionHelper( pPosHelper, nDimensionCount, xLogicTarget, pShapeFactory ) |
| , m_pPosHelper(pPosHelper) |
| { |
| } |
| |
| PolarLabelPositionHelper::~PolarLabelPositionHelper() |
| { |
| } |
| |
| awt::Point PolarLabelPositionHelper::getLabelScreenPositionAndAlignmentForLogicValues( |
| LabelAlignment& rAlignment |
| , double fLogicValueOnAngleAxis |
| , double fLogicValueOnRadiusAxis |
| , double fLogicZ |
| , sal_Int32 nScreenValueOffsetInRadiusDirection ) const |
| { |
| double fUnitCircleAngleDegree = m_pPosHelper->transformToAngleDegree( fLogicValueOnAngleAxis ); |
| double fUnitCircleRadius = m_pPosHelper->transformToRadius( fLogicValueOnRadiusAxis ); |
| |
| return getLabelScreenPositionAndAlignmentForUnitCircleValues( |
| rAlignment, ::com::sun::star::chart::DataLabelPlacement::OUTSIDE |
| , fUnitCircleAngleDegree, 0.0 |
| , fUnitCircleRadius, fUnitCircleRadius, fLogicZ, nScreenValueOffsetInRadiusDirection ); |
| } |
| |
| awt::Point PolarLabelPositionHelper::getLabelScreenPositionAndAlignmentForUnitCircleValues( |
| LabelAlignment& rAlignment, sal_Int32 nLabelPlacement |
| , double fUnitCircleStartAngleDegree, double fUnitCircleWidthAngleDegree |
| , double fUnitCircleInnerRadius, double fUnitCircleOuterRadius |
| , double fLogicZ |
| , sal_Int32 nScreenValueOffsetInRadiusDirection ) const |
| { |
| bool bCenter = (nLabelPlacement != ::com::sun::star::chart::DataLabelPlacement::OUTSIDE) |
| && (nLabelPlacement != ::com::sun::star::chart::DataLabelPlacement::INSIDE); |
| |
| double fAngleDegree = fUnitCircleStartAngleDegree + fUnitCircleWidthAngleDegree/2.0; |
| double fRadius = 0.0; |
| if( !bCenter ) //e.g. for pure pie chart(one ring only) or for angle axis of polyar coordinate system |
| fRadius = fUnitCircleOuterRadius; |
| else |
| fRadius = fUnitCircleInnerRadius + (fUnitCircleOuterRadius-fUnitCircleInnerRadius)/2.0 ; |
| |
| awt::Point aRet( this->transformSceneToScreenPosition( |
| m_pPosHelper->transformUnitCircleToScene( fAngleDegree, fRadius, fLogicZ+0.5 ) ) ); |
| |
| if(3==m_nDimensionCount && nLabelPlacement == ::com::sun::star::chart::DataLabelPlacement::OUTSIDE) |
| { |
| //check wether the upper or the downer edge is more distant from the center |
| //take the farest point to put the label to |
| |
| awt::Point aP0( this->transformSceneToScreenPosition( |
| m_pPosHelper->transformUnitCircleToScene( 0, 0, fLogicZ ) ) ); |
| awt::Point aP1(aRet); |
| awt::Point aP2( this->transformSceneToScreenPosition( |
| m_pPosHelper->transformUnitCircleToScene( fAngleDegree, fRadius, fLogicZ-0.5 ) ) ); |
| |
| ::basegfx::B2DVector aV0( aP0.X, aP0.Y ); |
| ::basegfx::B2DVector aV1( aP1.X, aP1.Y ); |
| ::basegfx::B2DVector aV2( aP2.X, aP2.Y ); |
| |
| double fL1 = ::basegfx::B2DVector(aV1-aV0).getLength(); |
| double fL2 = ::basegfx::B2DVector(aV2-aV0).getLength(); |
| |
| if(fL2>fL1) |
| aRet = aP2; |
| |
| //calculate new angle for alignment |
| double fDX = aRet.X-aP0.X; |
| double fDY = aRet.Y-aP0.Y; |
| fDY*=-1.0;//drawing layer has inverse y values |
| if( fDX != 0.0 ) |
| { |
| fAngleDegree = atan(fDY/fDX)*180.0/F_PI; |
| if(fDX<0.0) |
| fAngleDegree+=180.0; |
| } |
| else |
| { |
| if(fDY>0.0) |
| fAngleDegree = 90.0; |
| else |
| fAngleDegree = 270.0; |
| } |
| } |
| //------------------------------ |
| //set LabelAlignment |
| if( !bCenter ) |
| { |
| while(fAngleDegree>360.0) |
| fAngleDegree-=360.0; |
| while(fAngleDegree<0.0) |
| fAngleDegree+=360.0; |
| |
| bool bOutside = nLabelPlacement == ::com::sun::star::chart::DataLabelPlacement::OUTSIDE; |
| |
| if(fAngleDegree==0.0) |
| rAlignment = LABEL_ALIGN_CENTER; |
| else if(fAngleDegree<=22.5) |
| rAlignment = bOutside ? LABEL_ALIGN_RIGHT : LABEL_ALIGN_LEFT; |
| else if(fAngleDegree<67.5) |
| rAlignment = bOutside ? LABEL_ALIGN_RIGHT_TOP : LABEL_ALIGN_LEFT_BOTTOM; |
| else if(fAngleDegree<112.5) |
| rAlignment = bOutside ? LABEL_ALIGN_TOP : LABEL_ALIGN_BOTTOM; |
| else if(fAngleDegree<=157.5) |
| rAlignment = bOutside ? LABEL_ALIGN_LEFT_TOP : LABEL_ALIGN_RIGHT_BOTTOM; |
| else if(fAngleDegree<=202.5) |
| rAlignment = bOutside ? LABEL_ALIGN_LEFT : LABEL_ALIGN_RIGHT; |
| else if(fAngleDegree<247.5) |
| rAlignment = bOutside ? LABEL_ALIGN_LEFT_BOTTOM : LABEL_ALIGN_RIGHT_TOP; |
| else if(fAngleDegree<292.5) |
| rAlignment = bOutside ? LABEL_ALIGN_BOTTOM : LABEL_ALIGN_TOP; |
| else if(fAngleDegree<337.5) |
| rAlignment = bOutside ? LABEL_ALIGN_RIGHT_BOTTOM : LABEL_ALIGN_LEFT_TOP; |
| else |
| rAlignment = bOutside ? LABEL_ALIGN_RIGHT : LABEL_ALIGN_LEFT; |
| } |
| else |
| { |
| rAlignment = LABEL_ALIGN_CENTER; |
| } |
| |
| //add a scaling independent Offset if requested |
| if( nScreenValueOffsetInRadiusDirection != 0) |
| { |
| awt::Point aOrigin( this->transformSceneToScreenPosition( |
| m_pPosHelper->transformUnitCircleToScene( 0.0, 0.0, fLogicZ+0.5 ) ) ); |
| basegfx::B2IVector aDirection( aRet.X- aOrigin.X, aRet.Y- aOrigin.Y ); |
| aDirection.setLength(nScreenValueOffsetInRadiusDirection); |
| aRet.X += aDirection.getX(); |
| aRet.Y += aDirection.getY(); |
| } |
| |
| return aRet; |
| } |
| |
| //............................................................................. |
| } //namespace chart |
| //............................................................................. |
