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.
  38  *
  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,
  42  *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
  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  * @file
  58  * For LWP filter architecture prototype
  59  * Implementation file of SdwRectangle.
  60  */
  61
  62 #include "lwpsdwrect.hxx"
  63
  64 /**************************************************************************
  65  * @short:  Default constructor
  66 **************************************************************************/
  67 SdwRectangle::SdwRectangle() : m_bRotated(false)
  68 {
  69     for (sal_uInt16 i = 0; i < 4; i++)
  70     {
  71         m_nRectCorner[0] = Point(0, 0);
  72     }
  73 }
  74 /**************************************************************************
  75  * @short:  Constructor
  76  * @param:  aPt0~aPt3 four corner points of a rectangle.
  77 **************************************************************************/
  78 SdwRectangle::SdwRectangle(const Point& rPt0, const Point& rPt1,
  79         const Point& rPt2, const Point& rPt3) : m_bRotated(true)
  80 {
  81     m_nRectCorner[0] = rPt0;
  82     m_nRectCorner[1] = rPt1;
  83     m_nRectCorner[2] = rPt2;
  84     m_nRectCorner[3] = rPt3;
  85
  86     if (rPt0.Y() == rPt1.Y() && rPt0.Y() < rPt3.Y())
  87     {
  88         m_bRotated = false;
  89     }
  90 }
  91
  92 /**************************************************************************
  93  * @short:  Copy constructor
  94 **************************************************************************/
  95 SdwRectangle::SdwRectangle(const SdwRectangle& rOther)
  96 {
  97     m_nRectCorner[0] = rOther.m_nRectCorner[0];
  98     m_nRectCorner[1] = rOther.m_nRectCorner[1];
  99     m_nRectCorner[2] = rOther.m_nRectCorner[2];
 100     m_nRectCorner[3] = rOther.m_nRectCorner[3];
 101
 102     m_bRotated  = rOther.IsRectRotated();
 103 }
 104 SdwRectangle::~SdwRectangle()
 105 {
 106 }
 107 /**************************************************************************
 108  * @short:  Calculate and return center point of the rectangle.
 109  * @return: center point
 110 **************************************************************************/
 111 Point SdwRectangle::GetRectCenter() const
 112 {
 113     long nX = (long)((double)(m_nRectCorner[0].X() + m_nRectCorner[2].X())/2 + 0.5);
 114     long nY = (long)((double)(m_nRectCorner[0].Y() + m_nRectCorner[2].Y())/2 + 0.5);
 115
 116     return Point(nX, nY);
 117 }
 118 /**************************************************************************
 119  * @short:  Calculate width of the rectangle.
 120  * @return: rectangle width.
 121 **************************************************************************/
 122 long SdwRectangle::GetWidth() const
 123 {
 124     long nX0 = m_nRectCorner[0].X();
 125     long nY0 = m_nRectCorner[0].Y();
 126     long nX1 = m_nRectCorner[1].X();
 127     long nY1 = m_nRectCorner[1].Y();
 128
 129     return (long)CalcDistBetween2Points(nX0, nY0, nX1, nY1);
 130 }
 131 /**************************************************************************
 132  * @short:  Calculate height of the rectangle.
 133  * @return: rectangle height.
 134 **************************************************************************/
 135 long SdwRectangle::GetHeight() const
 136 {
 137     long nX1 = m_nRectCorner[1].X();
 138     long nY1 = m_nRectCorner[1].Y();
 139     long nX2 = m_nRectCorner[2].X();
 140     long nY2 = m_nRectCorner[2].Y();
 141
 142     return (long)CalcDistBetween2Points(nX1, nY1, nX2, nY2);
 143 }
 144 /**************************************************************************
 145  * @short:  Calculate coordinate of the original rectangle.
 146  * @return: a prz rectangle
 147 **************************************************************************/
 148 Rectangle SdwRectangle::GetOriginalRect() const
 149 {
 150     if (m_bRotated)
 151     {
 152         long nHeight = GetHeight();
 153         long nWidth = GetWidth();
 154         Point aCenter = GetRectCenter();
 155
 156         Point aLT(aCenter.X()-(long)((double)nWidth/2+0.5),
 157             aCenter.Y()-(long)((double)nHeight/2+0.5));
 158         Point aRB(aLT.X()+nWidth, aLT.Y()+nHeight);
 159
 160         return Rectangle(aLT, aRB);
 161     }
 162     else
 163     {
 164         return Rectangle(m_nRectCorner[3], m_nRectCorner[1]);
 165     }
 166 }
 167 /**************************************************************************
 168  * @short:  Calculate rotation angle of the rectangle.
 169  * @return: rotation angle.
 170 **************************************************************************/
 171 double SdwRectangle::GetRotationAngle() const
 172 {
 173     if (!m_bRotated)
 174     {
 175         return 0.00;
 176     }
 177
 178     double fX1 = (double)(m_nRectCorner[1].X());
 179     double fY1 = (double)(m_nRectCorner[1].Y());
 180     double fX2 = (double)(m_nRectCorner[2].X());
 181     double fY2 = (double)(m_nRectCorner[2].Y());
 182     double fMidX = (fX1 + fX2) / 2;
 183     double fMidY = (fY1 + fY2) / 2;
 184
 185     Point aCenter = GetRectCenter();
 186     double fCenterX = (double)aCenter.X();
 187     double fCenterY = (double)aCenter.Y();
 188
 189     double fAngle = atan2((fMidY - fCenterY), (fMidX - fCenterX));
 190
 191     return -fAngle;
 192 }
 193
 194 double SdwRectangle::CalcDistBetween2Points(long nX1, long nY1, long nX2, long nY2)
 195 {
 196     return sqrt((double)((nX1-nX2)*(nX1-nX2) + (nY1-nY2)*(nY1-nY2)));
 197 }
 198
 199 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */