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
  22 #include "Strings.hrc"
  23 #include "ResId.hxx"
  24 #include "macros.hxx"
  25 #include "ObjectIdentifier.hxx"
  26 #include <rtl/math.hxx>
  27 #include <svx/svdpagv.hxx>
  28 #include <com/sun/star/beans/XPropertySet.hpp>
  29 #include <basegfx/matrix/b2dhommatrix.hxx>
  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( ::rtl::math::approxEqual( m_fDragRange, 0.0 ) )
  67         m_fDragRange = 1.0;
  68 }
  69 DragMethod_PieSegment::~DragMethod_PieSegment()
  70 {
  71 }
  72 void DragMethod_PieSegment::TakeSdrDragComment(OUString& rStr) const
  73 {
  74     rStr = SCH_RESSTR(STR_STATUS_PIE_SEGMENT_EXPLODED);
  75     rStr = rStr.replaceFirst( "%PERCENTVALUE", OUString::number( static_cast<sal_Int32>((m_fAdditionalOffset+m_fInitialOffset)*100.0) ));
  76 }
  77 bool DragMethod_PieSegment::BeginSdrDrag()
  78 {
  79     Point aStart( DragStat().GetStart() );
  80     m_aStartVector = B2DVector( aStart.X(), aStart.Y() );
  81     Show();
  82     return true;
  83 }
  84 void DragMethod_PieSegment::MoveSdrDrag(const Point& rPnt)
  85 {
  86     if( DragStat().CheckMinMoved(rPnt) )
  87     {
  88         //calculate new offset
  89         B2DVector aShiftVector(( B2DVector( rPnt.X(), rPnt.Y() ) - m_aStartVector ));
  90         m_fAdditionalOffset = m_aDragDirection.scalar( aShiftVector )/m_fDragRange; // projection
  91
  92         if( m_fAdditionalOffset < -m_fInitialOffset )
  93             m_fAdditionalOffset = -m_fInitialOffset;
  94         else if( m_fAdditionalOffset > (1.0-m_fInitialOffset) )
  95             m_fAdditionalOffset = 1.0 - m_fInitialOffset;
  96
  97         B2DVector aNewPosVector = m_aStartVector + (m_aDragDirection * m_fAdditionalOffset);
  98         Point aNewPos = Point( (long)(aNewPosVector.getX()), (long)(aNewPosVector.getY()) );
  99         if( aNewPos != DragStat().GetNow() )
 100         {
 101             Hide();
 102             DragStat().NextMove( aNewPos );
 103             Show();
 104         }
 105     }
 106 }
 107 bool DragMethod_PieSegment::EndSdrDrag(bool /*bCopy*/)
 108 {
 109     Hide();
 110
 111     try
 112     {
 113         Reference< frame::XModel > xChartModel( this->getChartModel() );
 114         if( xChartModel.is() )
 115         {
 116             Reference< beans::XPropertySet > xPointProperties(
 117                 ObjectIdentifier::getObjectPropertySet( m_aObjectCID, xChartModel ) );
 118             if( xPointProperties.is() )
 119                 xPointProperties->setPropertyValue( "Offset", uno::makeAny( m_fAdditionalOffset+m_fInitialOffset ));
 120         }
 121     }
 122     catch( const uno::Exception & ex )
 123     {
 124         ASSERT_EXCEPTION( ex );
 125     }
 126
 127     return true;
 128 }
 129 basegfx::B2DHomMatrix DragMethod_PieSegment::getCurrentTransformation()
 130 {
 131     basegfx::B2DHomMatrix aRetval;
 132
 133     aRetval.translate(DragStat().GetDX(), DragStat().GetDY());
 134
 135     return aRetval;
 136 }
 137 void DragMethod_PieSegment::createSdrDragEntries()
 138 {
 139     SdrObject* pObj = m_rDrawViewWrapper.getSelectedObject();
 140     SdrPageView* pPV = m_rDrawViewWrapper.GetPageView();
 141
 142     if( pObj && pPV )
 143     {
 144         const basegfx::B2DPolyPolygon aNewPolyPolygon(pObj->TakeXorPoly());
 145         addSdrDragEntry(new SdrDragEntryPolyPolygon(aNewPolyPolygon));
 146     }
 147 }
 148 } //namespace chart
 149
 150 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */