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50 lines
2.2 KiB
C++
50 lines
2.2 KiB
C++
#pragma once
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#include <string>
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#include <vector>
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#include <sstream>
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#include "structs.h"
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class SVGParser final
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{
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public:
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// The only function to be called
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static bool GetVerticesFromSvgFile(const std::string& filePath, std::vector<std::vector<Point2f>> &vertices);
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private:
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//static bool LoadGeometryFromSvgStream(unsigned char* pBlob, int blobSize, std::vector<Point2f> &vertices);
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static void RemoveSpaces( std::string& svgString );
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static bool GetVerticesFromSvgString(std::string& svgText, std::vector<std::vector<Point2f>> &vertices);
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static bool GetVerticesFromPathData( const std::string& pathData, std::vector<Point2f> &vertices );
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static bool GetElementContent( const std::string& svgText, const std::string& elementName, std::string& elementValue, size_t& startContentPos, size_t& endContentPos);
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static bool GetAttributeValue( const std::string& svgText, const std::string& attributeName, std::string& attributeValue );
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// Skips any optional commas in the stream
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// SVG has a really funky format,
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// not sure this code works for all cases.
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// TODO: Test cases!
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static void SkipSvgComma(std::stringstream& stream, bool isRequired);
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static float ReadSvgValue(std::stringstream& stream, float defaultValue);
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static float ReadSvgValue(std::stringstream& stream, bool separatorRequired);
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// Reads a single point
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static Point2f ReadSvgPoint( std::stringstream& stream );
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// Read the first point,
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// taking into account relative and absolute positioning.
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// Stores this point, needed when path is closed
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// Advances the cursor if requested.
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static Point2f FirstSvgPoint(std::stringstream& stream, Point2f& cursor, char cmd, bool isOpen, bool advance);
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// Read the next point,
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// taking into account relative and absolute positioning.
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// Advances the cursor if requested.
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// Throws an exception if the figure is not open
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static Point2f NextSvgPoint(std::stringstream& stream, Point2f& cursor, char cmd, bool isOpen, bool advance);
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// Reads next point, given only the new x coordinate
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static Point2f NextSvgCoordX(std::stringstream& stream, Point2f& cursor, char cmd, bool isOpen);
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// Reads next point, given only the new y coordinate
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static Point2f NextSvgCoordY(std::stringstream& ssRef, Point2f& cursor, char cmd, bool isOpen);
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};
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