IAIRect.h Go to the documentation of this file. /* * Name: IAIRect.h * $Revision: 1 $ * Author: * * ADOBE SYSTEMS INCORPORATED * Copyright 2008 Adobe Systems Incorporated * All rights reserved. * * NOTICE: Adobe permits you to use, modify, and distribute this file * in accordance with the terms of the Adobe license agreement * accompanying it. If you have received this file from a source other * than Adobe, then your use, modification, or distribution of it * requires the prior written permission of Adobe. * */ #ifndef __IAIRect__ #define __IAIRect__ /* * Includes */ #include "AIBasicTypes.h" #include <cmath> #include <cfloat> #include <cstdlib> #include "AIBasicUtilities.h" namespace ai { template<typename T> struct Absolute { static T Absolute_Val(T a){ return ::abs(a); } }; template<> struct Absolute<AIReal> { static AIReal Absolute_Val(AIReal a){ return ::fabs(a); } }; namespace RectTraits { template<typename T> struct RectStruct_Traits { }; template<> struct RectStruct_Traits <AIRect> { typedef AIPoint Point_t; //current implementation is compatible with ADMRect, //but we plan to make is same for win and mac. #ifdef WIN_ENV typedef ai::int32 Coordinates_t; #endif #ifdef MAC_ENV typedef short Coordinates_t; #endif #ifdef LINUX_ENV typedef short Coordinates_t; #endif typedef Absolute<Coordinates_t> ABS_t; }; template<> struct RectStruct_Traits <AIRealRect> { typedef AIRealPoint Point_t; typedef AIReal Coordinates_t; typedef Absolute<Coordinates_t> ABS_t; }; } } /* * Wrapper Class */ //Class used to working with Rectangles template <typename T> class IAIRectImpl : public T { private: typedef typename ai::RectTraits::RectStruct_Traits<T>::ABS_t AbsoluteFunction; typedef typename ai::RectTraits::RectStruct_Traits<T>::Point_t PointType; typedef typename ai::RectTraits::RectStruct_Traits<T>::Coordinates_t CoordinateType; public: IAIRectImpl(){} IAIRectImpl(const T& rect) { this->left = rect.left; this->top = rect.top; this->right = rect.right; this->bottom = rect.bottom; } IAIRectImpl(const PointType& a) { this->left = a.h; this->right = a.h; this->top = a.v; this->bottom = a.v; } IAIRectImpl(const PointType& a, const PointType& b) { this->left = ai::Min(a.h, b.h); this->right = ai::Max(a.h, b.h); this->top = ai::Min(a.v, b.v); this->bottom = ai::Max(a.v, b.v); } IAIRectImpl(CoordinateType l, CoordinateType t, CoordinateType r, CoordinateType b) { this->left = l; this->top = t; this->right = r; this->bottom = b; } CoordinateType Width() const { return AbsoluteFunction::Absolute_Val(this->right - this->left);} CoordinateType Height() const { return AbsoluteFunction::Absolute_Val(this->top - this->bottom);} AIBoolean IsEmpty() const { return (this->top == this->bottom && this->right == this->left); } void SetEmpty() {this->left = this->top = this->right = this->bottom = 0; } AIBoolean IsNormalized() const {return this->left <= this->right && this->top <= this->bottom; } void Normalize() { if (this->left > this->right) { CoordinateType saveLeft = this->left; this->left = this->right; this->right = saveLeft; } if (this->top > this->bottom) { CoordinateType saveTop = this->top; this->top = this->bottom; this->bottom = saveTop; } } AIBoolean Contains(const PointType& p) const{ return this->left <= p.h && this->right >= p.h && this->top <= p.v && this->bottom >= p.v; } AIBoolean Contains(const T& r) const{ return this->left <= r.left && this->right >= r.left && this->top <= r.top && this->bottom >= r.top && this->left <= r.right && this->right >= r.right && this->top <= r.bottom && this->bottom >= r.bottom; } CoordinateType Area() const {return Width() * Height(); } PointType Center() const{ PointType center; center.h = (this->left + this->right) / 2; center.v = (this->top + this->bottom) / 2; return center; } AIBoolean Overlaps(const T& r) const{ return this->right >= r.left && this->left <= r.right && this->bottom >= r.top && this->top <= r.bottom;} IAIRectImpl& operator ++ () { this->operator += (1); return *this; } IAIRectImpl& operator -- () { this->operator -= (1); return *this; } IAIRectImpl& operator += (CoordinateType n) { this->left -= n; this->top -= n; this->right += n; this->bottom += n; return *this; } IAIRectImpl& operator -= (CoordinateType n) { this->operator += (-n); return *this; } IAIRectImpl& operator += (const PointType& p) { this->left += p.h; this->top += p.v; this->right += p.h; this->bottom += p.v; return *this; } IAIRectImpl& operator -= (PointType& p) { this->left -= p.h; this->top -= p.v; this->right -= p.h; this->bottom -= p.v; return *this; } IAIRectImpl& operator = (const PointType& p) { this->left = this->right = p.h; this->top = this->bottom = p.v; return *this; } void Inset(CoordinateType h, CoordinateType v){ this->left += h; this->top += v; this->right -= h; this->bottom -= v; } void Inflate(CoordinateType h, CoordinateType v) { this->left -= h; this->top -= v; this->right += h; this->bottom += v; } void Offset(CoordinateType h, CoordinateType v){ this->left += h; this->top += v; this->right += h; this->bottom += v; } void Union(const PointType& a) { this->left = ai::Min(this->left, a.h); this->top = ai::Min(this->top, a.v); this->right = ai::Max(this->right, a.h); this->bottom = ai::Max(this->bottom, a.v); } void Union(const T& a){ this->left = ai::Min(a.left, this->left); this->top = ai::Min(a.top, this->top); this->right = ai:: Max(a.right, this->right); this->bottom = ai::Max( a.bottom, this->bottom);} void Union(const T& a, const T& b) { this->left = ai::Min(a.left, b.left); this->top = ai::Min(a.top, b.top); this->right = ai::Max(a.right, b.right); this->bottom = ai::Max(a.bottom, b.bottom); } void Intersect(const T& a) { this->left = ai::Max(this->left, a.left); this->top = ai::Max(this->top, a.top); this->right = ai::Min(this->right, a.right); this->bottom = ai::Min(this->bottom, a.bottom); if (!Overlaps(a)) SetEmpty(); } void Intersect(const T& a, const T& b) { this->left = ai::Max(a.left, b.left); this->top = ai::Max(a.top, b.top); this->right = ai::Min(a.right, b.right); this->bottom = ai::Min(a.bottom, b.bottom); if (!Overlaps(a)) SetEmpty(); } void Center(const T& centerRect) { Offset(centerRect.left + ((centerRect.right - centerRect.left) - Width()) / 2, centerRect.top + ((centerRect.bottom - centerRect.top) - Height()) / 2); } AIBoolean operator == (const T& a) const { return a.left == this->left && a.top == this->top && a.right == this->right && a.bottom == this->bottom; } AIBoolean operator != (const T& a) const {return !(*this == a);} }; typedef IAIRectImpl<AIRealRect> IAIRealRect; typedef IAIRectImpl<AIRect> IAIRect; #endif // __IAIRect__

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