qpf.h

ARM9-2410教学实验系统下Linux下minigui程序

/*
** $Id: qpf.h,v 1.5 2003/04/29 07:16:34 weiym Exp $
**
** qpf.h: the head file of Qt Prerendered Font operation set.
**
** Copyright (C) 2003 Feynman Software.
**
*/

#ifndef GUI_FONT_QPF_H
    #define GUI_FONT_QPF_H

#ifdef __cplusplus
extern "C" {
#endif  /* __cplusplus */

#define FM_SMOOTH   1

typedef struct __attribute__ ((packed)) _GLYPHMETRICS {
    Uint8 linestep;
    Uint8 width;
    Uint8 height;
    Uint8 padding;

    Sint8 bearingx;     /* Difference from pen position to glyph's left bbox */
    Uint8 advance;      /* Difference between pen positions */
    Sint8 bearingy;     /* Used for putting characters on baseline */

    Sint8 reserved;     /* Do not use */
} GLYPHMETRICS;

typedef struct _GLYPH
{
    GLYPHMETRICS* metrics;
    unsigned char* data;
} GLYPH;

typedef struct _GLYPHTREE
{
    unsigned int min, max;
    struct _GLYPHTREE* less;
    struct _GLYPHTREE* more;
    GLYPH* glyph;
} GLYPHTREE;

typedef struct __attribute__ ((packed)) _QPFMETRICS
{
    Sint8 ascent, descent;
    Sint8 leftbearing, rightbearing;
    Uint8 maxwidth;
    Sint8 leading;
    Uint8 flags;
    Uint8 underlinepos;
    Uint8 underlinewidth;
    Uint8 reserved3;
} QPFMETRICS;

typedef struct 
{
    unsigned int height;
    unsigned int width;

    unsigned int file_size;
    QPFMETRICS* fm;

    GLYPHTREE* tree;

    int max_bmp_size;
    unsigned char* std_bmp;
} QPFINFO;

extern FONTOPS qpf_font_ops;

BOOL LoadQPFont (const char* file, QPFINFO* QPFInfo);
void UnloadQPFont (QPFINFO* QPFInfo);

#define SBC_QPFONT_INFO(logfont) ((QPFINFO*)(((DEVFONT*) (logfont.sbc_devfont))->data))
#define MBC_QPFONT_INFO(logfont) ((QPFINFO*)(((DEVFONT*) (logfont.mbc_devfont))->data))

#define SBC_QPFONT_INFO_P(logfont) ((QPFINFO*)(((DEVFONT*) (logfont->sbc_devfont))->data))
#define MBC_QPFONT_INFO_P(logfont) ((QPFINFO*)(((DEVFONT*) (logfont->mbc_devfont))->data))

#define QPFONT_INFO_P(devfont) ((QPFINFO*)(devfont->data))
#define QPFONT_INFO(devfont) ((QPFINFO*)(devfont.data))

#ifdef __cplusplus
}
#endif  /* __cplusplus */

#endif /* GUI_FONT_QPF_H */