draw.h
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/* See LICENSE file for copyright and license details. */
/* X11 types - begin */
struct _XDraw {
unsigned int w, h;
Display *dpy;
Drawable drawable;
GC gc;
};
typedef struct _XDraw Draw;
struct _XCol {
unsigned long rgb;
};
typedef struct _XCol Col;
struct _XFont {
int ascent;
int descent;
unsigned int h, w;
XFontSet set;
XFontStruct *xfont;
};
typedef struct _XFont Fnt;
/* X11 types - end */
typedef struct {
Draw *draw;
Col *fg;
Col *bg;
Fnt *font;
Bool fill;
} DDC;
typedef struct {
unsigned int w;
unsigned int h;
int x;
int y;
int xOff;
int yOff;
} TextExtents;
/* Drawable abstraction */
Draw *draw_create(Display *dpy, Window win, unsigned int w, unsigned int h);
void draw_resize(Draw *draw, unsigned int w, unsigned int h);
void draw_free(Draw *draw);
/* Drawing context abstraction */
DDC *dc_create(Draw *draw);
void dc_free(DDC *dc);
/* Fnt abstraction */
Fnt *font_create(const char *fontname);
void font_free(Fnt *font);
/* Colour abstraction */
Col *col_create(const char *colname);
void col_free(Col *col);
/* Drawing context manipulation */
void dc_setfont(DDC *dc, Fnt *font);
void dc_setfg(DDC *dc, Col col);
void dc_setbg(DDC *dc, Col col);
void dc_setfill(DDC *dc, Bool fill);
/* Drawing functions */
void dc_drawrect(DDC *dc, int x, int y, unsigned int w, unsigned int h);
void dc_drawtext(DDC *dc, int x, int y, const char *text);
/* Map functions */
void dc_map(DDC *dc, int x, int y, unsigned int w, unsigned int h);
/* Text functions */
void dc_getextents(DDC *dc, const char *text, TextExtents *extents);