draw.h (view raw)
1/* See LICENSE file for copyright and license details. */
2
3typedef struct _DDC DDC;
4
5/* X11 types - begin */
6typedef struct _XDraw Draw;
7struct _XDraw {
8 unsigned int w, h;
9 Display *dpy;
10 int screen;
11 Window win;
12 Drawable drawable;
13 GC gc;
14 DDC *dc;
15};
16
17struct _XCol {
18 unsigned long rgb;
19};
20typedef struct _XCol Col;
21
22struct _XFont {
23 int ascent;
24 int descent;
25 unsigned int h, w;
26 XFontSet set;
27 XFontStruct *xfont;
28};
29typedef struct _XFont Fnt;
30/* X11 types - end */
31
32struct _DDC {
33 Draw *draw;
34 Col *fg;
35 Col *bg;
36 Fnt *font;
37 Bool fill;
38 DDC *next;
39};
40
41typedef struct {
42 unsigned int w;
43 unsigned int h;
44 int x;
45 int y;
46 int xOff;
47 int yOff;
48} TextExtents;
49
50/* Drawable abstraction */
51Draw *draw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h);
52void draw_resize(Draw *draw, unsigned int w, unsigned int h);
53void draw_free(Draw *draw);
54
55/* Drawing context abstraction */
56DDC *dc_create(Draw *draw);
57void dc_free(DDC *dc);
58
59/* Fnt abstraction */
60Fnt *font_create(const char *fontname);
61void font_free(Fnt *font);
62
63/* Colour abstraction */
64Col *col_create(const char *colname);
65void col_free(Col *col);
66
67/* Drawing context manipulation */
68void dc_setfont(DDC *dc, Fnt *font);
69void dc_setfg(DDC *dc, Col *col);
70void dc_setbg(DDC *dc, Col *col);
71void dc_setfill(DDC *dc, Bool fill);
72
73/* Drawing functions */
74void dc_drawrect(DDC *dc, int x, int y, unsigned int w, unsigned int h);
75void dc_drawtext(DDC *dc, int x, int y, const char *text);
76
77/* Map functions */
78void dc_map(DDC *dc, int x, int y, unsigned int w, unsigned int h);
79
80/* Text functions */
81void dc_getextents(DDC *dc, const char *text, TextExtents *extents);
82