• Skip to content
  • Skip to link menu
KDE 4.3 API Reference
  • KDE API Reference
  • kdelibs
  • Sitemap
  • Contact Us
 

KHTML

FloatPoint.h

Go to the documentation of this file.
00001 /*
00002  * Copyright (C) 2004, 2006, 2007 Apple Inc.  All rights reserved.
00003  * Copyright (C) 2005 Nokia.  All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  * 1. Redistributions of source code must retain the above copyright
00009  *    notice, this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright
00011  *    notice, this list of conditions and the following disclaimer in the
00012  *    documentation and/or other materials provided with the distribution.
00013  *
00014  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
00015  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00016  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
00017  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
00018  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00019  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00020  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00021  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
00022  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00023  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00024  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00025  */
00026 
00027 #ifndef FloatPoint_h
00028 #define FloatPoint_h
00029 
00030 #include "FloatSize.h"
00031 #include <wtf/Platform.h>
00032 
00033 #if PLATFORM(CG)
00034 typedef struct CGPoint CGPoint;
00035 #endif
00036 
00037 #if PLATFORM(MAC)
00038 #ifdef NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES
00039 typedef struct CGPoint NSPoint;
00040 #else
00041 typedef struct _NSPoint NSPoint;
00042 #endif
00043 #endif
00044 
00045 #if PLATFORM(QT)
00046 #include "qglobal.h"
00047 QT_BEGIN_NAMESPACE
00048 class QPointF;
00049 QT_END_NAMESPACE
00050 #endif
00051 
00052 #if PLATFORM(SYMBIAN)
00053 class TPoint;
00054 #endif
00055 
00056 namespace WebCore {
00057 
00058 class AffineTransform;
00059 class IntPoint;
00060 
00061 class FloatPoint {
00062 public:
00063     FloatPoint() : m_x(0), m_y(0) { }
00064     FloatPoint(float x, float y) : m_x(x), m_y(y) { }
00065     FloatPoint(const IntPoint&);
00066 
00067     static FloatPoint narrowPrecision(double x, double y);
00068 
00069     float x() const { return m_x; }
00070     float y() const { return m_y; }
00071 
00072     void setX(float x) { m_x = x; }
00073     void setY(float y) { m_y = y; }
00074     void move(float dx, float dy) { m_x += dx; m_y += dy; }
00075 
00076 #if PLATFORM(CG)
00077     FloatPoint(const CGPoint&);
00078     operator CGPoint() const;
00079 #endif
00080 
00081 #if PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)
00082     FloatPoint(const NSPoint&);
00083     operator NSPoint() const;
00084 #endif
00085 
00086 #if PLATFORM(QT)
00087     FloatPoint(const QPointF&);
00088     operator QPointF() const;
00089 #endif
00090 
00091 #if PLATFORM(SYMBIAN)
00092     operator TPoint() const;
00093     FloatPoint(const TPoint& );
00094 #endif
00095 
00096     FloatPoint matrixTransform(const AffineTransform&) const;
00097 
00098 private:
00099     float m_x, m_y;
00100 };
00101 
00102 
00103 inline FloatPoint& operator+=(FloatPoint& a, const FloatSize& b)
00104 {
00105     a.move(b.width(), b.height());
00106     return a;
00107 }
00108 
00109 inline FloatPoint& operator-=(FloatPoint& a, const FloatSize& b)
00110 {
00111     a.move(-b.width(), -b.height());
00112     return a;
00113 }
00114 
00115 inline FloatPoint operator+(const FloatPoint& a, const FloatSize& b)
00116 {
00117     return FloatPoint(a.x() + b.width(), a.y() + b.height());
00118 }
00119 
00120 inline FloatSize operator-(const FloatPoint& a, const FloatPoint& b)
00121 {
00122     return FloatSize(a.x() - b.x(), a.y() - b.y());
00123 }
00124 
00125 inline FloatPoint operator-(const FloatPoint& a, const FloatSize& b)
00126 {
00127     return FloatPoint(a.x() - b.width(), a.y() - b.height());
00128 }
00129 
00130 inline bool operator==(const FloatPoint& a, const FloatPoint& b)
00131 {
00132     return a.x() == b.x() && a.y() == b.y();
00133 }
00134 
00135 inline bool operator!=(const FloatPoint& a, const FloatPoint& b)
00136 {
00137     return a.x() != b.x() || a.y() != b.y();
00138 }
00139 
00140 }
00141 
00142 #endif

KHTML

Skip menu "KHTML"
  • Main Page
  • Namespace List
  • Class Hierarchy
  • Alphabetical List
  • Class List
  • File List
  • Namespace Members
  • Class Members
  • Related Pages

kdelibs

Skip menu "kdelibs"
  • DNSSD
  • Interfaces
  •   KHexEdit
  •   KMediaPlayer
  •   KSpeech
  •   KTextEditor
  • Kate
  • kconf_update
  • KDE3Support
  •   KUnitTest
  • KDECore
  • KDED
  • KDEsu
  • KDEUI
  • KDocTools
  • KFile
  • KHTML
  • KImgIO
  • KInit
  • kio
  • KIOSlave
  • KJS
  •   KJS-API
  •   WTF
  • kjsembed
  • KNewStuff
  • KParts
  • KPty
  • Kross
  • KUtils
  • Nepomuk
  • Plasma
  • Solid
  • Sonnet
  • ThreadWeaver
Generated for kdelibs by doxygen 1.6.1
This website is maintained by Adriaan de Groot and Allen Winter.
KDE® and the K Desktop Environment® logo are registered trademarks of KDE e.V. | Legal