juce_PathIterator.h

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/*
  ==============================================================================
 
   This file is part of the JUCE library.
   Copyright (c) 2022 - Raw Material Software Limited
 
   JUCE is an open source library subject to commercial or open-source
   licensing.
 
   By using JUCE, you agree to the terms of both the JUCE 7 End-User License
   Agreement and JUCE Privacy Policy.
 
   End User License Agreement: www.juce.com/juce-7-licence
   Privacy Policy: www.juce.com/juce-privacy-policy
 
   Or: You may also use this code under the terms of the GPL v3 (see
   www.gnu.org/licenses).
 
   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.
 
  ==============================================================================
*/
 
namespace juce
{
 
//==============================================================================
class JUCE_API  PathFlatteningIterator  final
{
public:
    //==============================================================================
    PathFlatteningIterator (const Path& path,
                            const AffineTransform& transform = AffineTransform(),
                            float tolerance = Path::defaultToleranceForMeasurement);

    ~PathFlatteningIterator();
 
    //==============================================================================
    bool next();
 
    float x1;  
    float y1;  
    float x2;  
    float y2;  

    bool closesSubPath;

    int subPathIndex;

    bool isLastInSubpath() const noexcept;
 
private:
    //==============================================================================
    const Path& path;
    const AffineTransform transform;
    const float* source;
    const float toleranceSquared;
    float subPathCloseX = 0, subPathCloseY = 0;
    const bool isIdentityTransform;
 
    HeapBlock<float> stackBase { 32 };
    float* stackPos;
    size_t stackSize = 32;
 
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (PathFlatteningIterator)
};
 
} // namespace juce