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/* -*- mode: C++; tab-width: 4 -*- */
/* ===================================================================== *\
Copyright (c) 2000-2001 Palm, Inc. or its subsidiaries.
All rights reserved.
This file is part of the Palm OS Emulator.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
\* ===================================================================== */
#include "EmCommon.h"
#include "EmPoint.h"
// ----------------------------------------------------------------------
template <class coord>
void
EmPointTempl<coord>::Offset (coord x, coord y)
{
fX += x;
fY += y;
}
// ----------------------------------------------------------------------
template <class coord>
EmPointTempl<coord>
EmPointTempl<coord>::operator+ (const EmPointTempl<coord>& pt) const
{
EmPointTempl<coord> result;
result.fX = this->fX + pt.fX;
result.fY = this->fY + pt.fY;
return result;
}
// ----------------------------------------------------------------------
template <class coord>
EmPointTempl<coord>
EmPointTempl<coord>::operator- (const EmPointTempl<coord>& pt) const
{
EmPointTempl<coord> result;
result.fX = this->fX - pt.fX;
result.fY = this->fY - pt.fY;
return result;
}
// ----------------------------------------------------------------------
template <class coord>
EmPointTempl<coord>
EmPointTempl<coord>::operator- (void) const
{
EmPointTempl<coord> result;
result.fX = -this->fX;
result.fY = -this->fY;
return result;
}
// ----------------------------------------------------------------------
template <class coord>
EmPointTempl<coord>&
EmPointTempl<coord>::operator+= (const EmPointTempl<coord>& pt)
{
fX += pt.fX;
fY += pt.fY;
return *this;
}
// ----------------------------------------------------------------------
template <class coord>
EmPointTempl<coord>&
EmPointTempl<coord>::operator-= (const EmPointTempl<coord>& pt)
{
fX -= pt.fX;
fY -= pt.fY;
return *this;
}
// ----------------------------------------------------------------------
template <class coord>
EmPointTempl<coord>
EmPointTempl<coord>::operator* (const EmPointTempl<coord>& pt) const
{
EmPointTempl<coord> result;
result.fX = this->fX * pt.fX;
result.fY = this->fY * pt.fY;
return result;
}
// ----------------------------------------------------------------------
template <class coord>
EmPointTempl<coord>
EmPointTempl<coord>::operator/ (const EmPointTempl<coord>& pt) const
{
EmPointTempl<coord> result;
EmAssert (pt.fX != 0);
EmAssert (pt.fY != 0);
result.fX = this->fX / pt.fX;
result.fY = this->fY / pt.fY;
return result;
}
// ----------------------------------------------------------------------
template <class coord>
EmPointTempl<coord>&
EmPointTempl<coord>::operator*= (const EmPointTempl<coord>& pt)
{
fX *= pt.fX;
fY *= pt.fY;
return *this;
}
// ----------------------------------------------------------------------
template <class coord>
EmPointTempl<coord>&
EmPointTempl<coord>::operator/= (const EmPointTempl<coord>& pt)
{
EmAssert (pt.fX != 0);
EmAssert (pt.fY != 0);
fX /= pt.fX;
fY /= pt.fY;
return *this;
}
// ----------------------------------------------------------------------
template <class coord>
Boolean
EmPointTempl<coord>::operator!= (const EmPointTempl<coord>& pt) const
{
return
(fX != pt.fX) ||
(fY != pt.fY);
}
// ----------------------------------------------------------------------
template <class coord>
Boolean
EmPointTempl<coord>::operator== (const EmPointTempl<coord>& pt) const
{
return
(fX == pt.fX) &&
(fY == pt.fY);
}
// ----------------------------------------------------------------------
#ifdef _MSC_VER
#pragma warning(disable: 4660) // template-class specialization is already instatiated
#endif
template class EmPointTempl<EmCoord>;
// ----------------------------------------------------------------------
// Psuedo-type definitions to aid in the conversion process without
// actually having to #include the requisite headers.
// ----------------------------------------------------------------------
#ifndef _WINDEF_
struct tagSIZE { char _[8]; };
struct tagPOINT { char _[8]; };
#endif
#ifndef __AFXWIN_H__
class CSize { char _[8]; };
class CPoint { char _[8]; };
#endif
#ifndef __MACTYPES__
struct Point { char _[4]; };
#endif
#ifndef _H_LPane
struct SDimension16 { char _[4]; };
struct SDimension32 { char _[8]; };
struct SPoint32 { char _[8]; };
#endif
struct VPoint { char _[8]; };
// ----------------------------------------------------------------------
// * EmPoint
// ----------------------------------------------------------------------
//
// Construct from another kind of point
// Assigned from another kind of point
//
#undef FOR_POINT
#define FOR_POINT(cls, size, x, y) \
EmPoint::EmPoint(const cls& pt) : \
EmPointTempl<EmCoord>(((size*)&pt)[x], ((size*)&pt)[y]) {} \
const EmPoint& EmPoint::operator=(const cls& pt) \
{ fX = ((size*)&pt)[x]; fY = ((size*)&pt)[y]; return *this; }
POINT_LIST_XY_SHORT
POINT_LIST_XY_LONG
POINT_LIST_YX_SHORT
POINT_LIST_YX_LONG
//
// Return another kind of point
//
#undef FOR_POINT
#define FOR_POINT(cls, size, x, y) \
EmPoint::operator cls() const \
{ size pt[2]; pt[x] = fX; pt[y] = fY; return *(cls*) pt; }
POINT_LIST_XY_LONG
POINT_LIST_YX_LONG
POINT_LIST_XY_SHORT
POINT_LIST_YX_SHORT
//
// Return a [const] (* | &) to another kind of point
//
#undef FOR_POINT
#define FOR_POINT(cls, size, x, y) \
EmPoint::operator const cls*() const \
{ return (const cls*) this; } \
EmPoint::operator cls*() \
{ return (cls*) this; } \
EmPoint::operator const cls&() const \
{ return *(const cls*) this; } \
EmPoint::operator cls&() \
{ return *(cls*) this; }
POINT_LIST_LONG
//#define TESTING
#ifdef TESTING
// ----------------------------------------------------------------------
#include "stdio.h"
void TestPoint();
void TestPoint()
{
printf("Testing EmPointTempl class...\n");
{
EmPoint pt1(1, 2);
EmAssert(pt1.fX == 1);
EmAssert(pt1.fY == 2);
EmPoint pt2(5, 6);
EmPoint pt3;
pt3 = pt2;
EmAssert(pt3.fX == 5);
EmAssert(pt3.fY == 6);
EmPoint pt4(pt2);
EmAssert(pt4.fX == 5);
EmAssert(pt4.fY == 6);
pt4.Offset(-5, -50);
EmAssert(pt4.fX == 5 - 5);
EmAssert(pt4.fY == 6 - 50);
EmPoint pt5 = pt1 + pt2;
EmAssert(pt5.fX == 1 + 5);
EmAssert(pt5.fY == 2 + 6);
EmPoint pt6 = pt1 - pt2;
EmAssert(pt6.fX == 1 - 5);
EmAssert(pt6.fY == 2 - 6);
EmPoint pt7 = -pt2;
EmAssert(pt7.fX == -5);
EmAssert(pt7.fY == -6);
EmPoint pt8(10, 11);
pt8 += pt2;
EmAssert(pt8.fX == 10 + 5);
EmAssert(pt8.fY == 11 + 6);
EmPoint pt9(10, 11);
pt9 -= pt2;
EmAssert(pt9.fX == 10 - 5);
EmAssert(pt9.fY == 11 - 6);
EmAssert(pt9 != pt7);
EmAssert(pt2 == pt2);
EmAssert(pt3 == pt2);
// !!! Need to test all the constructors and conversion operators
}
}
#endif
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