1 #include <u.h>
2 #include <libc.h>
3 #include <draw.h>
4 #include <mouse.h>
5 #include <frame.h>
6 
7 void
8 frinit(Frame *f, Rectangle r, Font *ft, Image *b, Image *cols[NCOL])
9 {
10 	f->font = ft;
11 	f->display = b->display;
12 	f->maxtab = 8*stringwidth(ft, "0");
13 	f->nbox = 0;
14 	f->nalloc = 0;
15 	f->nchars = 0;
16 	f->nlines = 0;
17 	f->p0 = 0;
18 	f->p1 = 0;
19 	f->box = 0;
20 	f->lastlinefull = 0;
21 	if(cols != 0)
22 		memmove(f->cols, cols, sizeof f->cols);
23 	frsetrects(f, r, b);
24 	if(f->tick==nil && f->cols[BACK]!=0)
25 		frinittick(f);
26 }
27 
28 void
29 frinittick(Frame *f)
30 {
31 	Image *b;
32 	Font *ft;
33 
34 	if(f->cols[BACK] == nil || f->display == nil)
35 		return;
36 	f->tickscale = scalesize(f->display, 1);
37 	b = f->display->screenimage;
38 	ft = f->font;
39 	if(f->tick)
40 		freeimage(f->tick);
41 	f->tick = allocimage(f->display, Rect(0, 0, f->tickscale*FRTICKW, ft->height), b->chan, 0, DWhite);
42 	if(f->tick == nil)
43 		return;
44 	if(f->tickback)
45 		freeimage(f->tickback);
46 	f->tickback = allocimage(f->display, f->tick->r, b->chan, 0, DWhite);
47 	if(f->tickback == 0){
48 		freeimage(f->tick);
49 		f->tick = 0;
50 		return;
51 	}
52 	/* background color */
53 	draw(f->tick, f->tick->r, f->cols[BACK], nil, ZP);
54 	/* vertical line */
55 	draw(f->tick, Rect(f->tickscale*(FRTICKW/2), 0, f->tickscale*(FRTICKW/2+1), ft->height), f->display->black, nil, ZP);
56 	/* box on each end */
57 	draw(f->tick, Rect(0, 0, f->tickscale*FRTICKW, f->tickscale*FRTICKW), f->cols[TEXT], nil, ZP);
58 	draw(f->tick, Rect(0, ft->height-f->tickscale*FRTICKW, f->tickscale*FRTICKW, ft->height), f->cols[TEXT], nil, ZP);
59 }
60 
61 void
62 frsetrects(Frame *f, Rectangle r, Image *b)
63 {
64 	f->b = b;
65 	f->entire = r;
66 	f->r = r;
67 	f->r.max.y -= (r.max.y-r.min.y)%f->font->height;
68 	f->maxlines = (r.max.y-r.min.y)/f->font->height;
69 }
70 
71 void
72 frclear(Frame *f, int freeall)
73 {
74 	if(f->nbox)
75 		_frdelbox(f, 0, f->nbox-1);
76 	if(f->box)
77 		free(f->box);
78 	if(freeall){
79 		freeimage(f->tick);
80 		freeimage(f->tickback);
81 		f->tick = 0;
82 		f->tickback = 0;
83 	}
84 	f->box = 0;
85 	f->ticked = 0;
86 }