chart2/source/controller/main/DragMethod_PieSegment.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include "DragMethod_PieSegment.hxx"
  21 #include <DrawViewWrapper.hxx>
  22
  23 #include <strings.hrc>
  24 #include <ResId.hxx>
  25 #include <ObjectIdentifier.hxx>
  26 #include <com/sun/star/beans/XPropertySet.hpp>
  27 #include <com/sun/star/awt/Point.hpp>
  28 #include <basegfx/matrix/b2dhommatrix.hxx>
  29 #include <tools/diagnose_ex.h>
  30
  31 namespace chart
  32 {
  33
  34 using namespace ::com::sun::star;
  35 using ::com::sun::star::uno::Reference;
  36 using ::basegfx::B2DVector;
  37
  38 DragMethod_PieSegment::DragMethod_PieSegment( DrawViewWrapper& rDrawViewWrapper
  39                                              , const OUString& rObjectCID
  40                                              , const Reference< frame::XModel >& xChartModel )
  41     : DragMethod_Base( rDrawViewWrapper, rObjectCID, xChartModel )
  42     , m_aStartVector(100.0,100.0)
  43     , m_fInitialOffset(0.0)
  44     , m_fAdditionalOffset(0.0)
  45     , m_aDragDirection(1000.0,1000.0)
  46     , m_fDragRange( 1.0 )
  47 {
  48     OUString aParameter( ObjectIdentifier::getDragParameterString( m_aObjectCID ) );
  49
  50     sal_Int32 nOffsetPercent(0);
  51     awt::Point aMinimumPosition(0,0);
  52     awt::Point aMaximumPosition(0,0);
  53
  54     ObjectIdentifier::parsePieSegmentDragParameterString(
  55           aParameter, nOffsetPercent, aMinimumPosition, aMaximumPosition );
  56
  57     m_fInitialOffset = nOffsetPercent / 100.0;
  58     if( m_fInitialOffset < 0.0 )
  59         m_fInitialOffset = 0.0;
  60     if( m_fInitialOffset > 1.0 )
  61         m_fInitialOffset = 1.0;
  62     B2DVector aMinVector( aMinimumPosition.X, aMinimumPosition.Y );
  63     B2DVector aMaxVector( aMaximumPosition.X, aMaximumPosition.Y );
  64     m_aDragDirection = aMaxVector - aMinVector;
  65     m_fDragRange = m_aDragDirection.scalar( m_aDragDirection );
  66     if( m_fDragRange == 0.0 )
  67         m_fDragRange = 1.0;
  68 }
  69 DragMethod_PieSegment::~DragMethod_PieSegment()
  70 {
  71 }
  72 OUString DragMethod_PieSegment::GetSdrDragComment() const
  73 {
  74     OUString aStr = SchResId(STR_STATUS_PIE_SEGMENT_EXPLODED);
  75     aStr = aStr.replaceFirst( "%PERCENTVALUE", OUString::number( static_cast<sal_Int32>((m_fAdditionalOffset+m_fInitialOffset)*100.0) ));
  76     return aStr;
  77 }
  78 bool DragMethod_PieSegment::BeginSdrDrag()
  79 {
  80     Point aStart( DragStat().GetStart() );
  81     m_aStartVector = B2DVector( aStart.X(), aStart.Y() );
  82     Show();
  83     return true;
  84 }
  85 void DragMethod_PieSegment::MoveSdrDrag(const Point& rPnt)
  86 {
  87     if( DragStat().CheckMinMoved(rPnt) )
  88     {
  89         //calculate new offset
  90         B2DVector aShiftVector( B2DVector( rPnt.X(), rPnt.Y() ) - m_aStartVector );
  91         m_fAdditionalOffset = m_aDragDirection.scalar( aShiftVector )/m_fDragRange; // projection
  92
  93         if( m_fAdditionalOffset < -m_fInitialOffset )
  94             m_fAdditionalOffset = -m_fInitialOffset;
  95         else if( m_fAdditionalOffset > (1.0-m_fInitialOffset) )
  96             m_fAdditionalOffset = 1.0 - m_fInitialOffset;
  97
  98         B2DVector aNewPosVector = m_aStartVector + (m_aDragDirection * m_fAdditionalOffset);
  99         Point aNewPos( static_cast<long>(aNewPosVector.getX()), static_cast<long>(aNewPosVector.getY()) );
 100         if( aNewPos != DragStat().GetNow() )
 101         {
 102             Hide();
 103             DragStat().NextMove( aNewPos );
 104             Show();
 105         }
 106     }
 107 }
 108 bool DragMethod_PieSegment::EndSdrDrag(bool /*bCopy*/)
 109 {
 110     Hide();
 111
 112     try
 113     {
 114         Reference< frame::XModel > xChartModel( getChartModel() );
 115         if( xChartModel.is() )
 116         {
 117             Reference< beans::XPropertySet > xPointProperties(
 118                 ObjectIdentifier::getObjectPropertySet( m_aObjectCID, xChartModel ) );
 119             if( xPointProperties.is() )
 120                 xPointProperties->setPropertyValue( "Offset", uno::Any( m_fAdditionalOffset+m_fInitialOffset ));
 121         }
 122     }
 123     catch( const uno::Exception & )
 124     {
 125         DBG_UNHANDLED_EXCEPTION("chart2");
 126     }
 127
 128     return true;
 129 }
 130 basegfx::B2DHomMatrix DragMethod_PieSegment::getCurrentTransformation()
 131 {
 132     basegfx::B2DHomMatrix aRetval;
 133
 134     aRetval.translate(DragStat().GetDX(), DragStat().GetDY());
 135
 136     return aRetval;
 137 }
 138 void DragMethod_PieSegment::createSdrDragEntries()
 139 {
 140     SdrObject* pObj = m_rDrawViewWrapper.getSelectedObject();
 141     SdrPageView* pPV = m_rDrawViewWrapper.GetPageView();
 142
 143     if( pObj && pPV )
 144     {
 145         const basegfx::B2DPolyPolygon aNewPolyPolygon(pObj->TakeXorPoly());
 146         addSdrDragEntry(std::unique_ptr<SdrDragEntry>(new SdrDragEntryPolyPolygon(aNewPolyPolygon)));
 147     }
 148 }
 149 } //namespace chart
 150
 151 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */