mirror of
https://github.com/RetroDECK/ES-DE.git
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220 lines
6.4 KiB
C++
220 lines
6.4 KiB
C++
/*
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* Copyright (c) 2020 Nwutobo Samuel Ugochukwu <sammycageagle@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef LUNASVG_H
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#define LUNASVG_H
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#include <memory>
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#include <string>
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#if defined(_MSC_VER) && defined(LUNASVG_SHARED)
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#ifdef LUNASVG_EXPORT
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#define LUNASVG_API __declspec(dllexport)
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#else
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#define LUNASVG_API __declspec(dllimport)
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#endif
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#else
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#define LUNASVG_API
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#endif
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namespace lunasvg {
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class Rect;
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class Matrix;
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class LUNASVG_API Box
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{
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public:
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Box() = default;
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Box(double x, double y, double w, double h);
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Box(const Rect& rect);
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Box& transform(const Matrix& matrix);
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Box transformed(const Matrix& matrix) const;
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public:
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double x{0};
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double y{0};
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double w{0};
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double h{0};
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};
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class Transform;
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class LUNASVG_API Matrix
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{
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public:
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Matrix() = default;
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Matrix(double a, double b, double c, double d, double e, double f);
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Matrix(const Transform& transform);
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Matrix& rotate(double angle);
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Matrix& rotate(double angle, double cx, double cy);
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Matrix& scale(double sx, double sy);
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Matrix& shear(double shx, double shy);
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Matrix& translate(double tx, double ty);
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Matrix& transform(double a, double b, double c, double d, double e, double f);
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Matrix& identity();
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Matrix& invert();
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Matrix& operator*=(const Matrix& matrix);
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Matrix& premultiply(const Matrix& matrix);
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Matrix& postmultiply(const Matrix& matrix);
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Matrix inverted() const;
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Matrix operator*(const Matrix& matrix) const;
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static Matrix rotated(double angle);
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static Matrix rotated(double angle, double cx, double cy);
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static Matrix scaled(double sx, double sy);
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static Matrix sheared(double shx, double shy);
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static Matrix translated(double tx, double ty);
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public:
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double a{1};
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double b{0};
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double c{0};
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double d{1};
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double e{0};
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double f{0};
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};
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class LUNASVG_API Bitmap
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{
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public:
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/**
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* @note Bitmap format is ARGB Premultiplied.
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*/
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Bitmap();
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Bitmap(std::uint8_t* data, std::uint32_t width, std::uint32_t height, std::uint32_t stride);
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Bitmap(std::uint32_t width, std::uint32_t height);
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void reset(std::uint8_t* data, std::uint32_t width, std::uint32_t height, std::uint32_t stride);
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void reset(std::uint32_t width, std::uint32_t height);
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std::uint8_t* data() const;
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std::uint32_t width() const;
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std::uint32_t height() const;
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std::uint32_t stride() const;
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void clear(std::uint32_t color);
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void convert(int ri, int gi, int bi, int ai, bool unpremultiply);
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void convertToRGBA() { convert(0, 1, 2, 3, true); }
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bool valid() const { return !!m_impl; }
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private:
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struct Impl;
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std::shared_ptr<Impl> m_impl;
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};
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class LayoutSymbol;
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class LUNASVG_API Document
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{
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public:
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/**
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* @brief Creates a document from a file
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* @param filename - file to load
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* @return pointer to document on success, otherwise nullptr
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*/
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static std::unique_ptr<Document> loadFromFile(const std::string& filename);
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/**
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* @brief Creates a document from a string
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* @param string - string to load
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* @return pointer to document on success, otherwise nullptr
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*/
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static std::unique_ptr<Document> loadFromData(const std::string& string);
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/**
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* @brief Creates a document from a string data and size
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* @param data - string data to load
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* @param size - size of the data to load, in bytes
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* @return pointer to document on success, otherwise nullptr
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*/
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static std::unique_ptr<Document> loadFromData(const char* data, std::size_t size);
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/**
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* @brief Creates a document from a null terminated string data
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* @param data - null terminated string data to load
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* @return pointer to document on success, otherwise nullptr
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*/
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static std::unique_ptr<Document> loadFromData(const char* data);
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/**
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* @brief Sets the current transformation matrix of the document
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* @param matrix - current transformation matrix
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*/
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void setMatrix(const Matrix& matrix);
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/**
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* @brief Returns the current transformation matrix of the document
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* @return the current transformation matrix
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*/
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Matrix matrix() const;
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/**
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* @brief Returns the smallest rectangle in which the document fits
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* @return the smallest rectangle in which the document fits
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*/
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Box box() const;
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/**
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* @brief Returns width of the document
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* @return the width of the document in pixels
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*/
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double width() const;
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/**
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* @brief Returns the height of the document
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* @return the height of the document in pixels
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*/
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double height() const;
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/**
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* @brief Renders the document to a bitmap
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* @param matrix - the current transformation matrix
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* @param bitmap - target image on which the content will be drawn
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*/
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void render(Bitmap bitmap, const Matrix& matrix = Matrix{}) const;
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/**
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* @brief Renders the document to a bitmap
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* @param width - maximum width, in pixels
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* @param height - maximum height, in pixels
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* @param backgroundColor - background color in 0xRRGGBBAA format
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* @return the raster representation of the document
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*/
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Bitmap renderToBitmap(std::uint32_t width = 0, std::uint32_t height = 0, std::uint32_t backgroundColor = 0x00000000) const;
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~Document();
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private:
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Document();
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std::unique_ptr<LayoutSymbol> root;
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};
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} //namespace lunasvg
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#endif // LUNASVG_H
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