lotuswordpro/source/filter/lwpsdwrect.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*************************************************************************
   3  *
   4  *  The Contents of this file are made available subject to the terms of
   5  *  either of the following licenses
   6  *
   7  *         - GNU Lesser General Public License Version 2.1
   8  *         - Sun Industry Standards Source License Version 1.1
   9  *
  10  *  Sun Microsystems Inc., October, 2000
  11  *
  12  *  GNU Lesser General Public License Version 2.1
  13  *  =============================================
  14  *  Copyright 2000 by Sun Microsystems, Inc.
  15  *  901 San Antonio Road, Palo Alto, CA 94303, USA
  16  *
  17  *  This library is free software; you can redistribute it and/or
  18  *  modify it under the terms of the GNU Lesser General Public
  19  *  License version 2.1, as published by the Free Software Foundation.
  20  *
  21  *  This library is distributed in the hope that it will be useful,
  22  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  24  *  Lesser General Public License for more details.
  25  *
  26  *  You should have received a copy of the GNU Lesser General Public
  27  *  License along with this library; if not, write to the Free Software
  28  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  29  *  MA  02111-1307  USA
  30  *
  31  *
  32  *  Sun Industry Standards Source License Version 1.1
  33  *  =================================================
  34  *  The contents of this file are subject to the Sun Industry Standards
  35  *  Source License Version 1.1 (the "License"); You may not use this file
  36  *  except in compliance with the License. You may obtain a copy of the
  37  *  License at http://www.openoffice.org/license.html.
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  39  *  Software provided under this License is provided on an "AS IS" basis,
  40  *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
  41  *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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  43  *  See the License for the specific provisions governing your rights and
  44  *  obligations concerning the Software.
  45  *
  46  *  The Initial Developer of the Original Code is: IBM Corporation
  47  *
  48  *  Copyright: 2008 by IBM Corporation
  49  *
  50  *  All Rights Reserved.
  51  *
  52  *  Contributor(s): _______________________________________
  53  *
  54  *
  55  ************************************************************************/
  56 /*****************************************************************************
  57  * Change History
  58  *  Mar 2005            Revised for lwpfilter
  59  ****************************************************************************/
  60 /**
  61  * @file
  62  * For LWP filter architecture prototype
  63  * Implementation file of SdwRectangle.
  64  */
  65 #include "lwpsdwrect.hxx"
  66
  67 /**************************************************************************
  68  * @date:   11/19/2004
  69  * @short:  Default constructor
  70 **************************************************************************/
  71 SdwRectangle::SdwRectangle() : m_bRotated(false)
  72 {
  73     for (sal_uInt16 i = 0; i < 4; i++)
  74     {
  75         m_nRectCorner[0] = Point(0, 0);
  76     }
  77 }
  78 /**************************************************************************
  79  * @date:   11/19/2004
  80  * @short:  Constructor
  81  * @param:  aPt0~aPt3 four corner points of a rectangle.
  82 **************************************************************************/
  83 SdwRectangle::SdwRectangle(const Point& rPt0, const Point& rPt1,
  84         const Point& rPt2, const Point& rPt3) : m_bRotated(true)
  85 {
  86     m_nRectCorner[0] = rPt0;
  87     m_nRectCorner[1] = rPt1;
  88     m_nRectCorner[2] = rPt2;
  89     m_nRectCorner[3] = rPt3;
  90
  91     if (rPt0.Y() == rPt1.Y() && rPt0.Y() < rPt3.Y())
  92     {
  93         m_bRotated = false;
  94     }
  95 }
  96
  97 /**************************************************************************
  98  * @date:   12/15/2004
  99  * @short:  Copy constructor
 100 **************************************************************************/
 101 SdwRectangle::SdwRectangle(const SdwRectangle& rOther)
 102 {
 103     m_nRectCorner[0] = rOther.m_nRectCorner[0];
 104     m_nRectCorner[1] = rOther.m_nRectCorner[1];
 105     m_nRectCorner[2] = rOther.m_nRectCorner[2];
 106     m_nRectCorner[3] = rOther.m_nRectCorner[3];
 107
 108     m_bRotated  = rOther.IsRectRotated();
 109 }
 110 /**************************************************************************
 111  * @date:   11/19/2004
 112  * @short:  Destructor
 113 **************************************************************************/
 114 SdwRectangle::~SdwRectangle()
 115 {
 116 }
 117 /**************************************************************************
 118  * @date:   11/19/2004
 119  * @short:  Calculate and return center point of the rectangle.
 120  * @return: center point
 121 **************************************************************************/
 122 Point SdwRectangle::GetRectCenter() const
 123 {
 124     long nX = (long)((double)(m_nRectCorner[0].X() + m_nRectCorner[2].X())/2 + 0.5);
 125     long nY = (long)((double)(m_nRectCorner[0].Y() + m_nRectCorner[2].Y())/2 + 0.5);
 126
 127     return Point(nX, nY);
 128 }
 129 /**************************************************************************
 130  * @date:   11/19/2004
 131  * @short:  Calculate width of the rectangle.
 132  * @return: rectangle width.
 133 **************************************************************************/
 134 long SdwRectangle::GetWidth() const
 135 {
 136     long nX0 = m_nRectCorner[0].X();
 137     long nY0 = m_nRectCorner[0].Y();
 138     long nX1 = m_nRectCorner[1].X();
 139     long nY1 = m_nRectCorner[1].Y();
 140
 141     return (long)CalcDistBetween2Points(nX0, nY0, nX1, nY1);
 142 }
 143 /**************************************************************************
 144  * @date:   11/19/2004
 145  * @short:  Calculate height of the rectangle.
 146  * @return: rectangle height.
 147 **************************************************************************/
 148 long SdwRectangle::GetHeight() const
 149 {
 150     long nX1 = m_nRectCorner[1].X();
 151     long nY1 = m_nRectCorner[1].Y();
 152     long nX2 = m_nRectCorner[2].X();
 153     long nY2 = m_nRectCorner[2].Y();
 154
 155     return (long)CalcDistBetween2Points(nX1, nY1, nX2, nY2);
 156 }
 157 /**************************************************************************
 158  * @date:   11/19/2004
 159  * @short:  Calculate coordinate of the original rectangle.
 160  * @return: a prz rectangle
 161 **************************************************************************/
 162 Rectangle SdwRectangle::GetOriginalRect() const
 163 {
 164     if (m_bRotated)
 165     {
 166         long nHeight = GetHeight();
 167         long nWidth = GetWidth();
 168         Point aCenter = GetRectCenter();
 169
 170         Point aLT(aCenter.X()-(long)((double)nWidth/2+0.5),
 171             aCenter.Y()-(long)((double)nHeight/2+0.5));
 172         Point aRB(aLT.X()+nWidth, aLT.Y()+nHeight);
 173
 174         return Rectangle(aLT, aRB);
 175     }
 176     else
 177     {
 178         return Rectangle(m_nRectCorner[3], m_nRectCorner[1]);
 179     }
 180 }
 181 /**************************************************************************
 182  * @date:   11/19/2004
 183  * @short:  Calculate rotation angle of the rectangle.
 184  * @return: rotation angle.
 185 **************************************************************************/
 186 double SdwRectangle::GetRotationAngle() const
 187 {
 188     if (!m_bRotated)
 189     {
 190         return 0.00;
 191     }
 192
 193     double fX1 = (double)(m_nRectCorner[1].X());
 194     double fY1 = (double)(m_nRectCorner[1].Y());
 195     double fX2 = (double)(m_nRectCorner[2].X());
 196     double fY2 = (double)(m_nRectCorner[2].Y());
 197     double fMidX = (fX1 + fX2) / 2;
 198     double fMidY = (fY1 + fY2) / 2;
 199
 200     Point aCenter = GetRectCenter();
 201     double fCenterX = (double)aCenter.X();
 202     double fCenterY = (double)aCenter.Y();
 203
 204     double fAngle = atan2((fMidY - fCenterY), (fMidX - fCenterX));
 205
 206     return -fAngle;
 207 }
 208
 209 double SdwRectangle::CalcDistBetween2Points(long nX1, long nY1, long nX2, long nY2)
 210 {
 211     return sqrt((double)((nX1-nX2)*(nX1-nX2) + (nY1-nY2)*(nY1-nY2)));
 212 }
 213
 214 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */