solvespace/src/resource.h

113 lines
3.7 KiB
C++

//-----------------------------------------------------------------------------
// Discovery and loading of our resources (icons, fonts, templates, etc).
//
// Copyright 2016 whitequark
//-----------------------------------------------------------------------------
#ifndef SOLVESPACE_RESOURCE_H
#define SOLVESPACE_RESOURCE_H
class Camera;
class Point2d;
class Pixmap;
class Vector;
class RgbaColor;
std::string LoadString(const std::string &name);
std::string LoadStringFromGzip(const std::string &name);
std::shared_ptr<Pixmap> LoadPng(const std::string &name);
class Pixmap {
public:
enum class Format { BGRA, RGBA, BGR, RGB, A };
Format format;
size_t width;
size_t height;
size_t stride;
std::vector<uint8_t> data;
static std::shared_ptr<Pixmap> Create(Format format, size_t width, size_t height);
static std::shared_ptr<Pixmap> FromPng(const uint8_t *data, size_t size, bool flip = false);
static std::shared_ptr<Pixmap> ReadPng(FILE *f, bool flip = false);
static std::shared_ptr<Pixmap> ReadPng(const Platform::Path &filename, bool flip = false);
bool WritePng(FILE *f, bool flip = false);
bool WritePng(const Platform::Path &filename, bool flip = false);
size_t GetBytesPerPixel() const;
RgbaColor GetPixel(size_t x, size_t y) const;
bool Equals(const Pixmap &other) const;
void ConvertTo(Format newFormat);
void SetPixel(size_t x, size_t y, RgbaColor color);
std::shared_ptr<Pixmap> Copy();
};
class BitmapFont {
public:
struct Glyph {
uint8_t advanceCells;
uint16_t position;
};
std::string unifontData;
std::map<char32_t, Glyph> glyphs;
std::shared_ptr<Pixmap> texture;
bool textureUpdated;
uint16_t nextPosition;
static BitmapFont From(std::string &&unifontData);
static BitmapFont Create();
bool IsEmpty() const { return unifontData.empty(); }
const Glyph &GetGlyph(char32_t codepoint);
void LocateGlyph(char32_t codepoint, double *s0, double *t0, double *s1, double *t1,
size_t *advanceWidth, size_t *boundingHeight);
void AddGlyph(char32_t codepoint, std::shared_ptr<const Pixmap> pixmap);
size_t GetWidth(char32_t codepoint);
size_t GetWidth(const std::string &str);
};
class VectorFont {
public:
struct Contour {
std::vector<Point2d> points;
};
struct Glyph {
std::vector<Contour> contours;
double leftSideBearing;
double boundingWidth;
double advanceWidth;
};
std::string lffData;
std::map<char32_t, Glyph> glyphs;
double rightSideBearing;
double capHeight;
double ascender;
double descender;
static VectorFont From(std::string &&lffData);
static VectorFont *Builtin();
bool IsEmpty() const { return lffData.empty(); }
const Glyph &GetGlyph(char32_t codepoint);
double GetCapHeight(double forCapHeight) const;
double GetHeight(double forCapHeight) const;
double GetWidth(double forCapHeight, const std::string &str);
Vector GetExtents(double forCapHeight, const std::string &str);
void Trace(double forCapHeight, Vector o, Vector u, Vector v, const std::string &str,
const std::function<void(Vector, Vector)> &traceEdge);
void Trace(double forCapHeight, Vector o, Vector u, Vector v, const std::string &str,
const std::function<void(Vector, Vector)> &traceEdge, const Camera &camera);
};
#endif