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#pragma once
#ifdef USE_TILE_LOCAL
#ifdef USE_FT
#include <map>
#include <ft2build.h>
#include FT_FREETYPE_H
#include "tilefont.h"
struct HiDPIState;
extern HiDPIState display_density;
// TODO enne - Fonts could be made better by:
//
// * handling kerning
// * using SDL_font (maybe?)
// * the possibility of streaming this class in and out so that Crawl doesn't
// have to link against FreeType2 or be forced do as much processing at
// load time.
class FTFontWrapper : public FontWrapper
{
public:
FTFontWrapper();
virtual ~FTFontWrapper();
// font loading
virtual bool load_font(const char *font_name, unsigned int font_size) override;
virtual bool configure_font() override;
// render just text
virtual void render_textblock(unsigned int x, unsigned int y,
char32_t *chars, uint8_t *colours,
unsigned int width, unsigned int height,
bool drop_shadow = false) override;
// render text + background box
virtual void render_string(unsigned int x, unsigned int y,
const char *text, const coord_def &min_pos,
const coord_def &max_pos,
unsigned char font_colour,
bool drop_shadow = false,
unsigned char box_alpha = 0,
unsigned char box_colour = 0,
unsigned int outline = 0,
bool tooltip = false) override;
// FontBuffer helper functions
virtual void store(FontBuffer &buf, float &x, float &y,
const string &s, const VColour &c) override;
virtual void store(FontBuffer &buf, float &x, float &y,
const formatted_string &fs) override;
virtual void store(FontBuffer &buf, float &x, float &y, char32_t c,
const VColour &col) override;
virtual void store(FontBuffer &buf, float &x, float &y, char32_t c,
const VColour &fg_col, const VColour &bg_col) override;
virtual unsigned int char_width(bool logical=true) const override;
virtual unsigned int char_height(bool logical=true) const override;
virtual unsigned int max_width(int length, bool logical=true) const override;
virtual unsigned int max_height(int length, bool logical=true) const override;
virtual unsigned int string_width(const char *text, bool logical=true) override;
virtual unsigned int string_width(const formatted_string &str, bool logical=true) override;
virtual unsigned int string_height(const char *text, bool logical=true) const override;
virtual unsigned int string_height(const formatted_string &str, bool logical=true) const override;
// Try to split this string to fit in w x h pixel area.
virtual formatted_string split(const formatted_string &str,
unsigned int max_width,
unsigned int max_height) override;
virtual const GenericTexture *font_tex() const override;
protected:
// Not overrides! These two have an additional orig_x parameter compared
// to the virtuals.
void store(FontBuffer &buf, float &x, float &y,
const string &s, const VColour &c, float orig_x);
void store(FontBuffer &buf, float &x, float &y, const formatted_string &fs,
float orig_x);
int find_index_before_width(const char *str, int max_width);
unsigned int map_unicode(char *ch);
unsigned int map_unicode(char32_t uchar, bool update);
unsigned int map_unicode(char32_t uchar);
void load_glyph(unsigned int c, char32_t uchar);
void draw_m_buf(unsigned int x_pos, unsigned int y_pos, bool drop_shadow);
struct GlyphInfo
{
// offset before drawing glyph; can be negative
#ifdef __ANDROID__
// signed int in android port
int offset;
#else
int8_t offset;
#endif
// per-glyph horizontal advance
int8_t advance;
// per-glyph width
int8_t width;
// per-glyph ascender
int8_t ascender;
// does glyph have any pixels?
bool renderable;
bool valid;
};
vector<GlyphInfo> m_glyphs;
GlyphInfo& get_glyph_info(char32_t ch);
struct FontAtlasEntry
{
char32_t uchar;
};
FontAtlasEntry *m_atlas;
vector<char32_t> m_atlas_lru;
// count of glyph loads in the current text block
int n_subst;
// cached value of the maximum advance from m_advance
coord_def m_max_advance;
// minimum offset (likely negative)
int m_min_offset;
// size of ascender according to font
int m_ascender;
// other font metrics
coord_def charsz;
unsigned int m_ft_width;
unsigned int m_ft_height;
int m_max_width;
int m_max_height;
GenericTexture m_tex;
GLShapeBuffer *m_buf;
FT_Byte *ttf;
FT_Face face;
unsigned char *pixels;
unsigned int fsize;
};
#endif // USE_FT
#endif // USE_TILE_LOCAL
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