?? exfont.h
字號(hào):
#ifndef XJ_EX_FONT_H
#define XJ_EX_FONT_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef CONST
#define CONST
#endif/*CONST*/
#ifndef wchar_t
#define wchar_t unsigned short
#endif
/*
* Font data
*/
typedef struct _EXFONT_DATA_ITEM {
unsigned short value;
unsigned char* data;
}EXFONT_DATA_ITEM, *PEXFONT_DATA_ITEM;
typedef struct _EXFONT_DATA {
unsigned char width;
unsigned char height;
unsigned short nr;
PEXFONT_DATA_ITEM items;
}EXFONT_DATA, *PEXFONT_DATA;
/*
* Call back funtion, used to display a pixel.
*/
typedef void (*draw_pixel_func)(int x, int y, int color);
/*
* Background mode
* BKMODE_OPAQUE: Fill the background with background color.
* BKMODE_TRANSPARENT: Keep the background.
*/
enum {
BKMODE_OPAQUE = 0,
BKMODE_TRANSPARENT
};
typedef struct _EXFONT {
/*
* Name of the font, used for retrieving purpose.
*/
char* name;
/*
* Background mode: BKMODE_OPAQUE or BKMODE_TRANSPARENT
*/
unsigned char bk_mode;
/*
* Color of the char.
*/
int foreground_color;
int background_color;
/*
* Font data:
* thin_font_data: font data of ASCII chars.
* wide_font_data: font data of multibytes chars.
*/
PEXFONT_DATA thin_font_data;
PEXFONT_DATA wide_font_data;
/*
* Output function.
*/
draw_pixel_func draw_pixel;
}EXFONT, *PEXFONT;
#define EXFONT_data_init(font_data, _width, _height, _nr, _items) \
(font_data)->width = _width; \
(font_data)->height = _height; \
(font_data)->nr = _nr; \
(font_data)->items = _items;
#define EXFONT_name(font) (font)->name
#define EXFONT_width(font) (font)->width
#define EXFONT_height(font) (font)->height
#define EXFONT_bkmode(font) (font)->bk_mode
/*
* Functions to initialize the struct font.
*/
char EXFONT_init(PEXFONT font, char* name, int foreground_color, int background_color,
unsigned char bk_mode, draw_pixel_func draw_pixel);
char EXFONT_set_thin_font_data(PEXFONT font, PEXFONT_DATA thin_font_data);
char EXFONT_set_wide_font_data(PEXFONT font, PEXFONT_DATA wide_font_data);
/*
* Functions to draw string.
*/
char EXFONT_draw_w(CONST PEXFONT font, int x, int y, CONST wchar_t* text);
char EXFONT_draw_a(CONST PEXFONT font, int x, int y, CONST char* text);
/*
* Function to find the font data of of char.
*/
int EXFONT_font_index(CONST PEXFONT_DATA font_data, unsigned short cChar);
#ifdef __cplusplus
};
#endif
#endif/*XJ_EX_FONT_H*/
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