Cache for characters from fonts. More...
#include "stdafx.h"
#include "fontcache.h"
#include "blitter/factory.hpp"
#include "core/math_func.hpp"
#include "table/sprites.h"
#include "table/control_codes.h"
#include <ft2build.h>
#include <FT_FREETYPE_H>
#include <FT_GLYPH_H>
#include <fontconfig/fontconfig.h>
#include "table/unicode.h"
Go to the source code of this file.
Data Structures | |
struct | GlyphEntry |
Enumerations | |
enum | { FACE_COLOUR = 1, SHADOW_COLOUR = 2 } |
Functions | |
static FT_Error | GetFontByFaceName (const char *font_name, FT_Face *face) |
Get the font loaded into a Freetype face by using a font-name. | |
bool | SetFallbackFont (FreeTypeSettings *settings, const char *language_isocode, int winlangid, const char *str) |
We would like to have a fallback font as the current one doesn't contain all characters we need. | |
static void | SetFontGeometry (FT_Face face, FontSize size, int pixels) |
static void | LoadFreeTypeFont (const char *font_name, FT_Face *face, const char *type) |
Loads the freetype font. | |
void | InitFreeType () |
static void | ResetGlyphCache () |
Clear the complete cache. | |
static void | UnloadFace (FT_Face *face) |
Unload a face and set it to NULL. | |
void | UninitFreeType () |
Free everything allocated w.r.t. | |
static FT_Face | GetFontFace (FontSize size) |
static GlyphEntry * | GetGlyphPtr (FontSize size, WChar key) |
static void | SetGlyphPtr (FontSize size, WChar key, const GlyphEntry *glyph) |
static void * | AllocateFont (size_t size) |
static bool | GetFontAAState (FontSize size) |
const Sprite * | GetGlyph (FontSize size, WChar key) |
uint | GetGlyphWidth (FontSize size, WChar key) |
void | ResetFontSizes () |
Reset the font sizes to the defaults of the sprite based fonts. | |
static SpriteID | GetFontBase (FontSize size) |
Get the SpriteID of the first glyph for the given font size. | |
SpriteID | GetUnicodeGlyph (FontSize size, uint32 key) |
Get the SpriteID mapped to the given font size and key. | |
void | SetUnicodeGlyph (FontSize size, uint32 key, SpriteID sprite) |
Map a SpriteID to the font size and key. | |
void | InitializeUnicodeGlyphMap () |
Initialize the glyph map. | |
Variables | |
static const int | ASCII_LETTERSTART = 32 |
First printable ASCII letter. | |
int | _font_height [FS_END] |
Semi-constant for the height of the different sizes of fonts. | |
static FT_Library | _library = NULL |
static FT_Face | _face_small = NULL |
static FT_Face | _face_medium = NULL |
static FT_Face | _face_large = NULL |
static int | _ascender [FS_END] |
FreeTypeSettings | _freetype |
static GlyphEntry ** | _glyph_ptr [FS_END] |
static SpriteID ** | _unicode_glyph_map [FS_END] |
Cache for characters from fonts.
Definition in file fontcache.cpp.
static FT_Error GetFontByFaceName | ( | const char * | font_name, | |
FT_Face * | face | |||
) | [static] |
Get the font loaded into a Freetype face by using a font-name.
If no appropiate font is found, the function returns an error
Definition at line 596 of file fontcache.cpp.
References ShowInfoF().
Referenced by LoadFreeTypeFont().
static void LoadFreeTypeFont | ( | const char * | font_name, | |
FT_Face * | face, | |||
const char * | type | |||
) | [static] |
Loads the freetype font.
First type to load the fontname as if it were a path. If that fails, try to resolve the filename of the font using fontconfig, where the format is 'font family name' or 'font family name, font style'.
Definition at line 753 of file fontcache.cpp.
References error(), GetFontByFaceName(), ShowInfoF(), and StrEmpty().
void ResetFontSizes | ( | ) |
Reset the font sizes to the defaults of the sprite based fonts.
Definition at line 1060 of file fontcache.cpp.
References _font_height, FS_LARGE, FS_NORMAL, and FS_SMALL.
Referenced by UninitFreeType().
bool SetFallbackFont | ( | FreeTypeSettings * | settings, | |
const char * | language_isocode, | |||
int | winlangid, | |||
const char * | str | |||
) |
We would like to have a fallback font as the current one doesn't contain all characters we need.
This function must set all fonts of settings.
settings | the settings to overwrite the fontname of. | |
language_isocode | the language, e.g. en_GB. | |
winlangid | the language ID windows style. | |
str | Sample string. |
Definition at line 662 of file fontcache.cpp.
References lastof, and strecpy().
Referenced by CheckForMissingGlyphsInLoadedLanguagePack().
void UninitFreeType | ( | ) |
Free everything allocated w.r.t.
fonts.
Definition at line 848 of file fontcache.cpp.
References ResetFontSizes(), ResetGlyphCache(), and UnloadFace().
Referenced by CheckForMissingGlyphsInLoadedLanguagePack().
static void UnloadFace | ( | FT_Face * | face | ) | [static] |
Unload a face and set it to NULL.
face | the face to unload |
Definition at line 837 of file fontcache.cpp.
Referenced by UninitFreeType().
int _font_height[FS_END] |
Semi-constant for the height of the different sizes of fonts.
Definition at line 23 of file fontcache.cpp.
Referenced by GetCharacterHeight(), and ResetFontSizes().