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/BSpline.h" 00027 #include "cinder/Rect.h" 00028 #include <vector> 00029 00030 namespace cinder { 00031 00032 class Path2d { 00033 public: 00034 Path2d() : mClosed( false ) {} 00035 explicit Path2d( const BSpline<Vec2f> &spline, float subdivisionStep = 0.01f ); 00036 00037 void moveTo( const Vec2f &p ); 00038 void moveTo( float x, float y ) { moveTo( Vec2f( x, y ) ); } 00039 void lineTo( const Vec2f &p ); 00040 void lineTo( float x, float y ) { lineTo( Vec2f( x, y ) ); } 00041 void quadTo( const Vec2f &p1, const Vec2f &p2 ); 00042 void quadTo( float x1, float y1, float x2, float y2 ) { quadTo( Vec2f( x1, y1 ), Vec2f( x2, y2 ) ); } 00043 void curveTo( const Vec2f &p1, const Vec2f &p2, const Vec2f &p3 ); 00044 void curveTo( float x1, float y1, float x2, float y2, float x3, float y3 ) { curveTo( Vec2f( x1, y1 ), Vec2f( x2, y2 ), Vec2f( x3, y3 ) ); } 00045 00046 void close() { mClosed = true; } 00047 bool isClosed() const { return mClosed; } 00048 00049 bool empty() const { return mSegments.empty(); } 00050 void clear() { mSegments.clear(); mPoints.clear(); } 00051 size_t getNumSegments() const { return mSegments.size(); } 00052 size_t getNumPoints() const { return mPoints.size(); } 00053 00054 const Vec2f& getPoint( size_t point ) const { return mPoints[point]; } 00055 const Vec2f& getCurrentPoint() const { return mPoints.back(); } 00056 void setPoint( size_t index, const Vec2f &p ) { mPoints[index] = p; } 00057 00058 void removeSegment( size_t segment ); 00059 00060 enum SegmentType { MOVETO, LINETO, QUADTO, CUBICTO, CLOSE }; 00061 static const int sSegmentTypePointCounts[]; 00062 SegmentType getSegmentType( size_t segment ) const { return mSegments[segment]; } 00063 00064 friend class Shape2d; 00065 00066 private: 00067 bool mClosed; 00068 std::vector<Vec2f> mPoints; 00069 std::vector<SegmentType> mSegments; 00070 }; 00071 00072 } // namespace cinder