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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (the "License"); You may not use this file
* except in compliance with the License. You may obtain a copy of the
* License at http://www.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: IBM Corporation
*
* Copyright: 2008 by IBM Corporation
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
/*****************************************************************************
* Change History
* Mar 2005 Revised for lwpfilter
****************************************************************************/
/**
* @file
* For LWP filter architecture prototype
* Implementation file of SdwRectangle.
*/
#include "lwpsdwrect.hxx"
/**************************************************************************
* @date: 11/19/2004
* @short: Default constructor
**************************************************************************/
SdwRectangle::SdwRectangle() : m_bRotated(false)
{
for (sal_uInt16 i = 0; i < 4; i++)
{
m_nRectCorner[0] = Point(0, 0);
}
}
/**************************************************************************
* @date: 11/19/2004
* @short: Constructor
* @param: aPt0~aPt3 four corner points of a rectangle.
**************************************************************************/
SdwRectangle::SdwRectangle(const Point& rPt0, const Point& rPt1,
const Point& rPt2, const Point& rPt3) : m_bRotated(true)
{
m_nRectCorner[0] = rPt0;
m_nRectCorner[1] = rPt1;
m_nRectCorner[2] = rPt2;
m_nRectCorner[3] = rPt3;
if (rPt0.Y() == rPt1.Y() && rPt0.Y() < rPt3.Y())
{
m_bRotated = false;
}
}
/**************************************************************************
* @date: 12/15/2004
* @short: Copy constructor
**************************************************************************/
SdwRectangle::SdwRectangle(const SdwRectangle& rOther)
{
m_nRectCorner[0] = rOther.m_nRectCorner[0];
m_nRectCorner[1] = rOther.m_nRectCorner[1];
m_nRectCorner[2] = rOther.m_nRectCorner[2];
m_nRectCorner[3] = rOther.m_nRectCorner[3];
m_bRotated = rOther.IsRectRotated();
}
/**************************************************************************
* @date: 11/19/2004
* @short: Destructor
**************************************************************************/
SdwRectangle::~SdwRectangle()
{
}
/**************************************************************************
* @date: 11/19/2004
* @short: Get the flag whether if the rectangle has been rotated.
* @return: m_bRotated rotation flag.
**************************************************************************/
bool SdwRectangle::IsRectRotated() const
{
return m_bRotated;
}
/**************************************************************************
* @date: 11/19/2004
* @short: Calculate and return center point of the rectangle.
* @return: center point
**************************************************************************/
Point SdwRectangle::GetRectCenter() const
{
long nX = (long)((double)(m_nRectCorner[0].X() + m_nRectCorner[2].X())/2 + 0.5);
long nY = (long)((double)(m_nRectCorner[0].Y() + m_nRectCorner[2].Y())/2 + 0.5);
return Point(nX, nY);
}
/**************************************************************************
* @date: 11/19/2004
* @short: Calculate width of the rectangle.
* @return: rectangle width.
**************************************************************************/
long SdwRectangle::GetWidth() const
{
long nX0 = m_nRectCorner[0].X();
long nY0 = m_nRectCorner[0].Y();
long nX1 = m_nRectCorner[1].X();
long nY1 = m_nRectCorner[1].Y();
return (long)CalcDistBetween2Points(nX0, nY0, nX1, nY1);
}
/**************************************************************************
* @date: 11/19/2004
* @short: Calculate height of the rectangle.
* @return: rectangle height.
**************************************************************************/
long SdwRectangle::GetHeight() const
{
long nX1 = m_nRectCorner[1].X();
long nY1 = m_nRectCorner[1].Y();
long nX2 = m_nRectCorner[2].X();
long nY2 = m_nRectCorner[2].Y();
return (long)CalcDistBetween2Points(nX1, nY1, nX2, nY2);
}
/**************************************************************************
* @date: 11/19/2004
* @short: Calculate coordinate of the original rectangle.
* @return: a prz rectangle
**************************************************************************/
Rectangle SdwRectangle::GetOriginalRect() const
{
if (m_bRotated)
{
long nHeight = GetHeight();
long nWidth = GetWidth();
Point aCenter = GetRectCenter();
Point aLT(aCenter.X()-(long)((double)nWidth/2+0.5),
aCenter.Y()-(long)((double)nHeight/2+0.5));
Point aRB(aLT.X()+nWidth, aLT.Y()+nHeight);
return Rectangle(aLT, aRB);
}
else
{
return Rectangle(m_nRectCorner[3], m_nRectCorner[1]);
}
}
/**************************************************************************
* @date: 11/19/2004
* @short: Calculate rotation angle of the rectangle.
* @return: rotation angle.
**************************************************************************/
double SdwRectangle::GetRotationAngle() const
{
if (!m_bRotated)
{
return 0.00;
}
double fX1 = (double)(m_nRectCorner[1].X());
double fY1 = (double)(m_nRectCorner[1].Y());
double fX2 = (double)(m_nRectCorner[2].X());
double fY2 = (double)(m_nRectCorner[2].Y());
double fMidX = (fX1 + fX2) / 2;
double fMidY = (fY1 + fY2) / 2;
Point aCenter = GetRectCenter();
double fCenterX = (double)aCenter.X();
double fCenterY = (double)aCenter.Y();
double fAngle = atan2((fMidY - fCenterY), (fMidX - fCenterX));
return -fAngle;
}
double SdwRectangle::CalcDistBetween2Points(long nX1, long nY1, long nX2, long nY2)
{
return sqrt((double)((nX1-nX2)*(nX1-nX2) + (nY1-nY2)*(nY1-nY2)));
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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