sw/source/uibase/utlui/shdwcrsr.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 <com/sun/star/text/HoriOrientation.hpp>
  21 #include <shdwcrsr.hxx>
  22
  23 using namespace ::com::sun::star;
  24
  25 SwShadowCursor::~SwShadowCursor()
  26 {
  27     if( USHRT_MAX != m_nOldMode )
  28         DrawCursor( m_aOldPt, m_nOldHeight, m_nOldMode );
  29 }
  30
  31 void SwShadowCursor::SetPos( const Point& rPt, tools::Long nHeight, sal_uInt16 nMode )
  32 {
  33     Point aPt( m_pWin->LogicToPixel( rPt ));
  34     nHeight = m_pWin->LogicToPixel( Size( 0, nHeight )).Height();
  35     if( m_aOldPt != aPt || m_nOldHeight != nHeight || m_nOldMode != nMode )
  36     {
  37         if( USHRT_MAX != m_nOldMode )
  38             DrawCursor( m_aOldPt, m_nOldHeight, m_nOldMode );
  39
  40         DrawCursor( aPt, nHeight, nMode );
  41         m_nOldMode = nMode;
  42         m_nOldHeight = nHeight;
  43         m_aOldPt = aPt;
  44     }
  45 }
  46
  47 void SwShadowCursor::DrawTri( const Point& rPt, tools::Long nHeight, bool bLeft )
  48 {
  49     tools::Long nLineDiff = nHeight / 2;
  50     tools::Long nLineDiffHalf = nLineDiff / 2;
  51
  52     // Dot above
  53     Point aPt1( (bLeft ? rPt.X() - 3 : rPt.X() + 3),
  54                 rPt.Y() + nLineDiffHalf );
  55     // Dot below
  56     Point aPt2( aPt1.X(), aPt1.Y() + nHeight - nLineDiff - 1 );
  57     tools::Long nDiff = bLeft ? -1 : 1;
  58     while( aPt1.Y() <= aPt2.Y() )
  59     {
  60         m_pWin->GetOutDev()->DrawLine( aPt1, aPt2 );
  61         aPt1.AdjustY( 1 );
  62         aPt2.AdjustY( -1 );
  63         aPt2.setX( aPt1.AdjustX(nDiff ) );
  64     }
  65 }
  66
  67 void SwShadowCursor::DrawCursor( const Point& rPt, tools::Long nHeight, sal_uInt16 nMode )
  68 {
  69     nHeight = (((nHeight / 4)+1) * 4) + 1;
  70
  71     m_pWin->GetOutDev()->Push();
  72
  73     m_pWin->SetMapMode(MapMode(MapUnit::MapPixel));
  74     m_pWin->GetOutDev()->SetRasterOp( RasterOp::Xor );
  75
  76     m_pWin->GetOutDev()->SetLineColor( Color( ColorTransparency, sal_uInt32(m_aCol) ^ sal_uInt32(COL_WHITE) ) );
  77
  78     // 1. The Line:
  79     m_pWin->GetOutDev()->DrawLine( Point( rPt.X(), rPt.Y() + 1),
  80               Point( rPt.X(), rPt.Y() - 2 + nHeight ));
  81
  82     // 2. The Triangle
  83     if( text::HoriOrientation::LEFT == nMode || text::HoriOrientation::CENTER == nMode )    // Arrow to the right
  84         DrawTri( rPt, nHeight, false );
  85     if( text::HoriOrientation::RIGHT == nMode || text::HoriOrientation::CENTER == nMode )   // Arrow to the left
  86         DrawTri( rPt, nHeight, true );
  87
  88     m_pWin->GetOutDev()->Pop();
  89 }
  90
  91 void SwShadowCursor::Paint()
  92 {
  93     if( USHRT_MAX != m_nOldMode )
  94         DrawCursor( m_aOldPt, m_nOldHeight, m_nOldMode );
  95 }
  96
  97 tools::Rectangle SwShadowCursor::GetRect() const
  98 {
  99     tools::Long nH = m_nOldHeight;
 100     Point aPt( m_aOldPt );
 101
 102     nH = (((nH / 4)+1) * 4) + 1;
 103     tools::Long nWidth = nH / 4 + 3 + 1;
 104
 105     Size aSz( nWidth, nH );
 106
 107     if( text::HoriOrientation::RIGHT == m_nOldMode )
 108         aPt.AdjustX( -(aSz.Width()) );
 109     else if( text::HoriOrientation::CENTER == m_nOldMode )
 110     {
 111         aPt.AdjustX( -(aSz.Width()) );
 112         aSz.setWidth( aSz.Width() * 2 );
 113     }
 114
 115     return m_pWin->PixelToLogic( tools::Rectangle( aPt, aSz ) );
 116 }
 117
 118 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */