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#ifndef __JE_TTF_H__
#define __JE_TTF_H__
#include "../../core/configuration.h"
#if defined(jin_graphics)
#include <vector>
#include <map>
#include "stb/stb_truetype.h"
#include "../../math/quad.h"
#include "../color.h"
#include "../graphic.h"
#include "page.h"
#include "font.h"
#include "text.h"
namespace JinEngine
{
namespace Graphics
{
namespace Fonts
{
class TTF;
//
// TTFData
// |- TTF(14px)
// |- TTF(15px)
// .
// .
// .
//
class TTFData : public Object
{
public:
///
///
///
TTFData(const unsigned char* data, unsigned int size);
///
///
///
~TTFData();
///
///
///
TTF* createTTF(unsigned ttfsize);
///
///
///
void pushTTFsize(unsigned ttfsize);
///
///
///
void popTTFsize();
///
///
///
Channel* getCodepointBitmapAlpha(unsigned int codepoint, int* width, int* height, int* xoff, int* yoff) const;
///
///
///
Color* getCodepointBitmap(unsigned int codepoint, int* width, int* height, int* xoff, int* yoff) const;
///
///
///
void getVMetrics(int* baseline, int* descent);
///
///
///
void getHMetrics(unsigned int codepoint, int* advanceWidth, int* leftSideBearing);
private:
///
///
///
static const unsigned int FONT_SIZE = 12;
///
///
///
stbtt_fontinfo info;
///
///
///
struct
{
unsigned char* data;
unsigned int size;
} raw;
///
///
///
std::vector<float> scales;
};
class TTF : public Font, public Object
{
public:
//static TTF* createTTF(TTFData* ttfData, unsigned ttfSzie);
///
///
///
Page* typeset(const Text& text, int lineheight, int spacing = 0) override;
///
///
///
Page* typeset(const Content& text, int lineheight, int spacing = 0) override;
///
///
///
void render(const Text& text, int x, int y, int lineheight, int spacing = 0) override;
///
///
///
void render(const Content& text, int x, int y, int lineheight, int spacing = 0) override;
///
///
///
void render(const Page* page, int x, int y) override;
///
///
///
~TTF();
private:
friend class TTFData;
///
///
///
struct TTFGlyph
{
GLuint atlas;
// normalized coordinates
struct Bbox
{
float x, y;
float w, h;
} bbox;
// glyph size in pixel
unsigned int width, height;
};
///
///
///
static const int TEXTURE_SIZE_LEVELS_COUNT = 7;
///
///
///
static const int TEXTURE_SIZE_LEVEL_MAX = TEXTURE_SIZE_LEVELS_COUNT - 1;
///
///
///
static const int TEXTURE_WIDTHS[TEXTURE_SIZE_LEVELS_COUNT];
///
///
///
static const int TEXTURE_HEIGHTS[TEXTURE_SIZE_LEVELS_COUNT];
///
///
///
TTF(TTFData* ttf, Codepoint ttfSize);
///
///
///
void estimateSize();
///
///
///
GLuint createAtlas();
///
///
///
TTFGlyph& bakeGlyph(Codepoint character);
///
///
///
TTFGlyph& findGlyph(Codepoint character);
///
///
///
int getCharWidth(int c);
///
///
///
int getCharHeight(int c);
///
///
///
int getTextWidth(const Content& text, int spacing = 0);
///
///
///
int getTextHeight(const Content& text, int lineheight);
///
///
///
void getTextBox(const Content& text, int* w, int* h, int lineheight, int spacing = 0);
///
///
///
int textureWidth;
///
///
///
int textureHeight;
///
///
///
std::vector<GLuint> atlases;
///
///
///
std::map<Codepoint, TTFGlyph> glyphs;
///
///
///
TTFData* ttf;
///
///
///
int baseline;
///
///
///
int descent;
///
///
///
Math::Vector2<float> cursor;
};
} // namespace Fonts
} // namespace Graphics
} // namespace JinEngine
#endif // defined(jin_graphics)
#endif // __JE_FONT_H__
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