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 00029 #include <vector> 00030 00031 namespace cinder { 00032 00033 class Shape2d { 00034 public: 00035 void moveTo( const Vec2f &p ); 00036 void moveTo( float x, float y ) { moveTo( Vec2f( x, y ) ); } 00037 void lineTo( const Vec2f &p ); 00038 void lineTo( float x, float y ) { lineTo( Vec2f( x, y ) ); } 00039 void quadTo( const Vec2f &p1, const Vec2f &p2 ); 00040 void quadTo( float x1, float y1, float x2, float y2 ) { quadTo( Vec2f( x1, y1 ), Vec2f( x2, y2 ) ); } 00041 void curveTo( const Vec2f &p1, const Vec2f &p2, const Vec2f &p3 ); 00042 void curveTo( float x1, float y1, float x2, float y2, float x3, float y3 ) { curveTo( Vec2f( x1, y1 ), Vec2f( x2, y2 ), Vec2f( x3, y3 ) ); } 00043 void arc( const Vec2f ¢er, float radius, float startRadians, float endRadians, bool forward = true ); 00044 void arc( float centerX, float centerY, float radius, float startRadians, float endRadians, bool forward = true ) { arc( Vec2f( centerX, centerY ), radius, startRadians, endRadians, forward ); } 00045 void arcTo( const Vec2f &p, const Vec2f &t, float radius ); 00046 void arcTo( float x, float y, float tanX, float tanY, float radius) { arcTo( Vec2f( x, y ), Vec2f( tanX, tanY ), radius ); } 00047 void close(); 00048 00049 bool empty() const { return mContours.empty(); } 00050 void clear() { mContours.clear(); } 00051 size_t getNumContours() const { return mContours.size(); } 00052 00053 const Path2d& getContour( size_t i ) const { return mContours[i]; } 00054 Path2d& getContour( size_t i ) { return mContours[i]; } 00055 const std::vector<Path2d>& getContours() const { return mContours; } 00056 00057 const Vec2f& getCurrentPoint() const { return mContours.back().getCurrentPoint(); } 00058 00059 void appendContour( const Path2d &contour ) { mContours.push_back( contour ); } 00060 void removeContour( size_t i ) { mContours.erase( mContours.begin() + i ); } 00061 00063 Rectf calcBoundingBox() const; 00064 00066 00070 template<typename IT> 00071 void iterate( IT &it ) 00072 { 00073 bool stop = false; 00074 for( std::vector<Path2d>::const_iterator contourIt = mContours.begin(); contourIt != mContours.end(); ++contourIt ) { 00075 size_t pt = 0; 00076 it( Path2d::MOVETO, &contourIt->mPoints[0], 0 ); 00077 pt++; 00078 for( std::vector<Path2d::SegmentType>::const_iterator segIt = contourIt->mSegments.begin(); segIt != contourIt->mSegments.end(); ++segIt ) { 00079 if( *segIt == Path2d::CLOSE ) 00080 it( *segIt, &contourIt->mPoints[0], &contourIt->mPoints[pt-1] ); 00081 else if( ! it( *segIt, &contourIt->mPoints[pt], ( pt > 0 ) ? &contourIt->mPoints[pt-1] : 0 ) ) { 00082 stop = true; 00083 break; 00084 } 00085 pt += Path2d::sSegmentTypePointCounts[*segIt]; 00086 } 00087 if( stop ) break; 00088 /*else if( contourIt->isClosed() ) { 00089 if( ! it( Path2d::CLOSE, contourIt->empty() ? NULL : &contourIt->mPoints[0], ( pt > 0 ) ? &contourIt->mPoints[pt-1] : 0 ) ) 00090 break; 00091 }*/ 00092 } 00093 } 00094 00095 private: 00096 std::vector<Path2d> mContours; 00097 }; 00098 00099 } // namespace cinder