00001 /* 00002 Copyright (c) 2010, The Barbarian Group 00003 All rights reserved. 00004 00005 Redistribution and use in source and binary forms, with or without modification, are permitted provided that 00006 the following conditions are met: 00007 00008 * Redistributions of source code must retain the above copyright notice, this list of conditions and 00009 the following disclaimer. 00010 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 00011 the following disclaimer in the documentation and/or other materials provided with the distribution. 00012 00013 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED 00014 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00015 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 00016 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00017 TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00018 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00019 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00020 POSSIBILITY OF SUCH DAMAGE. 00021 */ 00022 00023 #pragma once 00024 00025 #include "cinder/Vector.h" 00026 #include "cinder/Rect.h" 00027 #include "cinder/Path2d.h" 00028 #include "cinder/MatrixAffine2.h" 00029 00030 #include <vector> 00031 00032 namespace cinder { 00033 00034 class Shape2d { 00035 public: 00036 void moveTo( const Vec2f &p ); 00037 void moveTo( float x, float y ) { moveTo( Vec2f( x, y ) ); } 00038 void lineTo( const Vec2f &p ); 00039 void lineTo( float x, float y ) { lineTo( Vec2f( x, y ) ); } 00040 void quadTo( const Vec2f &p1, const Vec2f &p2 ); 00041 void quadTo( float x1, float y1, float x2, float y2 ) { quadTo( Vec2f( x1, y1 ), Vec2f( x2, y2 ) ); } 00042 void curveTo( const Vec2f &p1, const Vec2f &p2, const Vec2f &p3 ); 00043 void curveTo( float x1, float y1, float x2, float y2, float x3, float y3 ) { curveTo( Vec2f( x1, y1 ), Vec2f( x2, y2 ), Vec2f( x3, y3 ) ); } 00044 void arc( const Vec2f ¢er, float radius, float startRadians, float endRadians, bool forward = true ); 00045 void arc( float centerX, float centerY, float radius, float startRadians, float endRadians, bool forward = true ) { arc( Vec2f( centerX, centerY ), radius, startRadians, endRadians, forward ); } 00046 void arcTo( const Vec2f &p, const Vec2f &t, float radius ); 00047 void arcTo( float x, float y, float tanX, float tanY, float radius) { arcTo( Vec2f( x, y ), Vec2f( tanX, tanY ), radius ); } 00048 void close(); 00049 00050 bool empty() const { return mContours.empty(); } 00051 void clear() { mContours.clear(); } 00052 size_t getNumContours() const { return mContours.size(); } 00053 00054 const Path2d& getContour( size_t i ) const { return mContours[i]; } 00055 Path2d& getContour( size_t i ) { return mContours[i]; } 00056 const std::vector<Path2d>& getContours() const { return mContours; } 00057 std::vector<Path2d>& getContours() { return mContours; } 00058 00059 const Vec2f& getCurrentPoint() const { return mContours.back().getCurrentPoint(); } 00060 00062 void append( const Shape2d &shape ); 00063 void appendContour( const Path2d &contour ) { mContours.push_back( contour ); } 00064 void removeContour( size_t i ) { mContours.erase( mContours.begin() + i ); } 00065 00067 void scale( const Vec2f &amount, Vec2f scaleCenter = Vec2f::zero() ); 00068 00070 void transform( const MatrixAffine2f &matrix ); 00072 Shape2d transformCopy( const MatrixAffine2f &matrix ) const; 00073 00075 Rectf calcBoundingBox() const; 00077 Rectf calcPreciseBoundingBox() const; 00078 00080 bool contains( const Vec2f &pt ) const; 00081 00083 00087 template<typename IT> 00088 void iterate( IT &it ) 00089 { 00090 bool stop = false; 00091 for( std::vector<Path2d>::const_iterator contourIt = mContours.begin(); contourIt != mContours.end(); ++contourIt ) { 00092 size_t pt = 0; 00093 it( Path2d::MOVETO, &contourIt->mPoints[0], 0 ); 00094 pt++; 00095 for( std::vector<Path2d::SegmentType>::const_iterator segIt = contourIt->mSegments.begin(); segIt != contourIt->mSegments.end(); ++segIt ) { 00096 if( *segIt == Path2d::CLOSE ) 00097 it( *segIt, &contourIt->mPoints[0], &contourIt->mPoints[pt-1] ); 00098 else if( ! it( *segIt, &contourIt->mPoints[pt], ( pt > 0 ) ? &contourIt->mPoints[pt-1] : 0 ) ) { 00099 stop = true; 00100 break; 00101 } 00102 pt += Path2d::sSegmentTypePointCounts[*segIt]; 00103 } 00104 if( stop ) break; 00105 /*else if( contourIt->isClosed() ) { 00106 if( ! it( Path2d::CLOSE, contourIt->empty() ? NULL : &contourIt->mPoints[0], ( pt > 0 ) ? &contourIt->mPoints[pt-1] : 0 ) ) 00107 break; 00108 }*/ 00109 } 00110 } 00111 00112 private: 00113 std::vector<Path2d> mContours; 00114 }; 00115 00116 } // namespace cinder