1 b822e0d8 2003-09-30 devnull #include <u.h>
  2 b822e0d8 2003-09-30 devnull #include <libc.h>
  3 b822e0d8 2003-09-30 devnull #include <draw.h>
  4 b822e0d8 2003-09-30 devnull #include <mouse.h>
  5 b822e0d8 2003-09-30 devnull #include <frame.h>
  6 b822e0d8 2003-09-30 devnull 
  7 b822e0d8 2003-09-30 devnull void
  8 57851b64 2008-03-07 rsc _frdrawtext(Frame *f, Point pt, Image *text, Image *back)
  9 b822e0d8 2003-09-30 devnull {
 10 b822e0d8 2003-09-30 devnull 	Frbox *b;
 11 b822e0d8 2003-09-30 devnull 	int nb;
 12 b822e0d8 2003-09-30 devnull 
 13 b822e0d8 2003-09-30 devnull 	for(nb=0,b=f->box; nb<f->nbox; nb++, b++){
 14 b822e0d8 2003-09-30 devnull 		_frcklinewrap(f, &pt, b);
 15 f6cb9833 2005-10-29 devnull 		if(!f->noredraw && b->nrune >= 0)
 16 57851b64 2008-03-07 rsc 			stringbg(f->b, pt, text, ZP, f->font, (char*)b->ptr, back, ZP);
 17 b822e0d8 2003-09-30 devnull 		pt.x += b->wid;
 18 b822e0d8 2003-09-30 devnull 	}
 19 b822e0d8 2003-09-30 devnull }
 20 b822e0d8 2003-09-30 devnull 
 21 b822e0d8 2003-09-30 devnull static int
 22 b822e0d8 2003-09-30 devnull nbytes(char *s0, int nr)
 23 b822e0d8 2003-09-30 devnull {
 24 b822e0d8 2003-09-30 devnull 	char *s;
 25 b822e0d8 2003-09-30 devnull 	Rune r;
 26 b822e0d8 2003-09-30 devnull 
 27 b822e0d8 2003-09-30 devnull 	s = s0;
 28 b822e0d8 2003-09-30 devnull 	while(--nr >= 0)
 29 b822e0d8 2003-09-30 devnull 		s += chartorune(&r, s);
 30 b822e0d8 2003-09-30 devnull 	return s-s0;
 31 b822e0d8 2003-09-30 devnull }
 32 b822e0d8 2003-09-30 devnull 
 33 b822e0d8 2003-09-30 devnull void
 34 024c9812 2007-05-10 devnull frdrawsel(Frame *f, Point pt, ulong p0, ulong p1, int issel)
 35 b822e0d8 2003-09-30 devnull {
 36 b822e0d8 2003-09-30 devnull 	Image *back, *text;
 37 b822e0d8 2003-09-30 devnull 
 38 b822e0d8 2003-09-30 devnull 	if(f->ticked)
 39 b822e0d8 2003-09-30 devnull 		frtick(f, frptofchar(f, f->p0), 0);
 40 b822e0d8 2003-09-30 devnull 
 41 b822e0d8 2003-09-30 devnull 	if(p0 == p1){
 42 024c9812 2007-05-10 devnull 		frtick(f, pt, issel);
 43 b822e0d8 2003-09-30 devnull 		return;
 44 b822e0d8 2003-09-30 devnull 	}
 45 b822e0d8 2003-09-30 devnull 
 46 b822e0d8 2003-09-30 devnull 	if(issel){
 47 b822e0d8 2003-09-30 devnull 		back = f->cols[HIGH];
 48 b822e0d8 2003-09-30 devnull 		text = f->cols[HTEXT];
 49 b822e0d8 2003-09-30 devnull 	}else{
 50 b822e0d8 2003-09-30 devnull 		back = f->cols[BACK];
 51 b822e0d8 2003-09-30 devnull 		text = f->cols[TEXT];
 52 b822e0d8 2003-09-30 devnull 	}
 53 b822e0d8 2003-09-30 devnull 
 54 b822e0d8 2003-09-30 devnull 	frdrawsel0(f, pt, p0, p1, back, text);
 55 b822e0d8 2003-09-30 devnull }
 56 b822e0d8 2003-09-30 devnull 
 57 57851b64 2008-03-07 rsc Point
 58 b822e0d8 2003-09-30 devnull frdrawsel0(Frame *f, Point pt, ulong p0, ulong p1, Image *back, Image *text)
 59 b822e0d8 2003-09-30 devnull {
 60 b822e0d8 2003-09-30 devnull 	Frbox *b;
 61 b822e0d8 2003-09-30 devnull 	int nb, nr, w, x, trim;
 62 b822e0d8 2003-09-30 devnull 	Point qt;
 63 b822e0d8 2003-09-30 devnull 	uint p;
 64 b822e0d8 2003-09-30 devnull 	char *ptr;
 65 b822e0d8 2003-09-30 devnull 
 66 b822e0d8 2003-09-30 devnull 	p = 0;
 67 b822e0d8 2003-09-30 devnull 	b = f->box;
 68 b822e0d8 2003-09-30 devnull 	trim = 0;
 69 b822e0d8 2003-09-30 devnull 	for(nb=0; nb<f->nbox && p<p1; nb++){
 70 b822e0d8 2003-09-30 devnull 		nr = b->nrune;
 71 b822e0d8 2003-09-30 devnull 		if(nr < 0)
 72 b822e0d8 2003-09-30 devnull 			nr = 1;
 73 b822e0d8 2003-09-30 devnull 		if(p+nr <= p0)
 74 b822e0d8 2003-09-30 devnull 			goto Continue;
 75 b822e0d8 2003-09-30 devnull 		if(p >= p0){
 76 b822e0d8 2003-09-30 devnull 			qt = pt;
 77 b822e0d8 2003-09-30 devnull 			_frcklinewrap(f, &pt, b);
 78 57851b64 2008-03-07 rsc 			/* fill in the end of a wrapped line */
 79 b822e0d8 2003-09-30 devnull 			if(pt.y > qt.y)
 80 b822e0d8 2003-09-30 devnull 				draw(f->b, Rect(qt.x, qt.y, f->r.max.x, pt.y), back, nil, qt);
 81 b822e0d8 2003-09-30 devnull 		}
 82 b822e0d8 2003-09-30 devnull 		ptr = (char*)b->ptr;
 83 b822e0d8 2003-09-30 devnull 		if(p < p0){	/* beginning of region: advance into box */
 84 b822e0d8 2003-09-30 devnull 			ptr += nbytes(ptr, p0-p);
 85 b822e0d8 2003-09-30 devnull 			nr -= (p0-p);
 86 b822e0d8 2003-09-30 devnull 			p = p0;
 87 b822e0d8 2003-09-30 devnull 		}
 88 b822e0d8 2003-09-30 devnull 		trim = 0;
 89 b822e0d8 2003-09-30 devnull 		if(p+nr > p1){	/* end of region: trim box */
 90 b822e0d8 2003-09-30 devnull 			nr -= (p+nr)-p1;
 91 b822e0d8 2003-09-30 devnull 			trim = 1;
 92 b822e0d8 2003-09-30 devnull 		}
 93 b822e0d8 2003-09-30 devnull 		if(b->nrune<0 || nr==b->nrune)
 94 b822e0d8 2003-09-30 devnull 			w = b->wid;
 95 b822e0d8 2003-09-30 devnull 		else
 96 b822e0d8 2003-09-30 devnull 			w = stringnwidth(f->font, ptr, nr);
 97 b822e0d8 2003-09-30 devnull 		x = pt.x+w;
 98 b822e0d8 2003-09-30 devnull 		if(x > f->r.max.x)
 99 b822e0d8 2003-09-30 devnull 			x = f->r.max.x;
100 b822e0d8 2003-09-30 devnull 		draw(f->b, Rect(pt.x, pt.y, x, pt.y+f->font->height), back, nil, pt);
101 b822e0d8 2003-09-30 devnull 		if(b->nrune >= 0)
102 57851b64 2008-03-07 rsc 			stringnbg(f->b, pt, text, ZP, f->font, ptr, nr, back, ZP);
103 b822e0d8 2003-09-30 devnull 		pt.x += w;
104 b822e0d8 2003-09-30 devnull 	    Continue:
105 b822e0d8 2003-09-30 devnull 		b++;
106 b822e0d8 2003-09-30 devnull 		p += nr;
107 b822e0d8 2003-09-30 devnull 	}
108 b822e0d8 2003-09-30 devnull 	/* if this is end of last plain text box on wrapped line, fill to end of line */
109 b822e0d8 2003-09-30 devnull 	if(p1>p0 &&  b>f->box && b<f->box+f->nbox && b[-1].nrune>0 && !trim){
110 b822e0d8 2003-09-30 devnull 		qt = pt;
111 b822e0d8 2003-09-30 devnull 		_frcklinewrap(f, &pt, b);
112 b822e0d8 2003-09-30 devnull 		if(pt.y > qt.y)
113 b822e0d8 2003-09-30 devnull 			draw(f->b, Rect(qt.x, qt.y, f->r.max.x, pt.y), back, nil, qt);
114 b822e0d8 2003-09-30 devnull 	}
115 57851b64 2008-03-07 rsc 	return pt;
116 b822e0d8 2003-09-30 devnull }
117 b822e0d8 2003-09-30 devnull 
118 b822e0d8 2003-09-30 devnull void
119 57851b64 2008-03-07 rsc frredraw(Frame *f)
120 57851b64 2008-03-07 rsc {
121 57851b64 2008-03-07 rsc 	int ticked;
122 57851b64 2008-03-07 rsc 	Point pt;
123 57851b64 2008-03-07 rsc 
124 57851b64 2008-03-07 rsc 	if(f->p0 == f->p1){
125 57851b64 2008-03-07 rsc 		ticked = f->ticked;
126 57851b64 2008-03-07 rsc 		if(ticked)
127 57851b64 2008-03-07 rsc 			frtick(f, frptofchar(f, f->p0), 0);
128 57851b64 2008-03-07 rsc 		frdrawsel0(f, frptofchar(f, 0), 0, f->nchars, f->cols[BACK], f->cols[TEXT]);
129 57851b64 2008-03-07 rsc 		if(ticked)
130 57851b64 2008-03-07 rsc 			frtick(f, frptofchar(f, f->p0), 1);
131 57851b64 2008-03-07 rsc 		return;
132 57851b64 2008-03-07 rsc 	}
133 57851b64 2008-03-07 rsc 
134 57851b64 2008-03-07 rsc 	pt = frptofchar(f, 0);
135 57851b64 2008-03-07 rsc 	pt = frdrawsel0(f, pt, 0, f->p0, f->cols[BACK], f->cols[TEXT]);
136 57851b64 2008-03-07 rsc 	pt = frdrawsel0(f, pt, f->p0, f->p1, f->cols[HIGH], f->cols[HTEXT]);
137 57851b64 2008-03-07 rsc 	pt = frdrawsel0(f, pt, f->p1, f->nchars, f->cols[BACK], f->cols[TEXT]);
138 57851b64 2008-03-07 rsc }
139 57851b64 2008-03-07 rsc 
140 57851b64 2008-03-07 rsc void
141 b822e0d8 2003-09-30 devnull frtick(Frame *f, Point pt, int ticked)
142 b822e0d8 2003-09-30 devnull {
143 b822e0d8 2003-09-30 devnull 	Rectangle r;
144 b822e0d8 2003-09-30 devnull 
145 b822e0d8 2003-09-30 devnull 	if(f->ticked==ticked || f->tick==0 || !ptinrect(pt, f->r))
146 b822e0d8 2003-09-30 devnull 		return;
147 b822e0d8 2003-09-30 devnull 	pt.x--;	/* looks best just left of where requested */
148 b822e0d8 2003-09-30 devnull 	r = Rect(pt.x, pt.y, pt.x+FRTICKW, pt.y+f->font->height);
149 cee7a6ab 2006-01-12 devnull 	/* can go into left border but not right */
150 cee7a6ab 2006-01-12 devnull 	if(r.max.x > f->r.max.x)
151 cee7a6ab 2006-01-12 devnull 		r.max.x = f->r.max.x;
152 b822e0d8 2003-09-30 devnull 	if(ticked){
153 b822e0d8 2003-09-30 devnull 		draw(f->tickback, f->tickback->r, f->b, nil, pt);
154 b822e0d8 2003-09-30 devnull 		draw(f->b, r, f->tick, nil, ZP);
155 b822e0d8 2003-09-30 devnull 	}else
156 b822e0d8 2003-09-30 devnull 		draw(f->b, r, f->tickback, nil, ZP);
157 b822e0d8 2003-09-30 devnull 	f->ticked = ticked;
158 b822e0d8 2003-09-30 devnull }
159 b822e0d8 2003-09-30 devnull 
160 b822e0d8 2003-09-30 devnull Point
161 b822e0d8 2003-09-30 devnull _frdraw(Frame *f, Point pt)
162 b822e0d8 2003-09-30 devnull {
163 b822e0d8 2003-09-30 devnull 	Frbox *b;
164 b822e0d8 2003-09-30 devnull 	int nb, n;
165 b822e0d8 2003-09-30 devnull 
166 b822e0d8 2003-09-30 devnull 	for(b=f->box,nb=0; nb<f->nbox; nb++, b++){
167 b822e0d8 2003-09-30 devnull 		_frcklinewrap0(f, &pt, b);
168 b822e0d8 2003-09-30 devnull 		if(pt.y == f->r.max.y){
169 b822e0d8 2003-09-30 devnull 			f->nchars -= _frstrlen(f, nb);
170 b822e0d8 2003-09-30 devnull 			_frdelbox(f, nb, f->nbox-1);
171 b822e0d8 2003-09-30 devnull 			break;
172 b822e0d8 2003-09-30 devnull 		}
173 b822e0d8 2003-09-30 devnull 		if(b->nrune > 0){
174 b822e0d8 2003-09-30 devnull 			n = _frcanfit(f, pt, b);
175 b822e0d8 2003-09-30 devnull 			if(n == 0)
176 57851b64 2008-03-07 rsc 				break;
177 b822e0d8 2003-09-30 devnull 			if(n != b->nrune){
178 b822e0d8 2003-09-30 devnull 				_frsplitbox(f, nb, n);
179 b822e0d8 2003-09-30 devnull 				b = &f->box[nb];
180 b822e0d8 2003-09-30 devnull 			}
181 b822e0d8 2003-09-30 devnull 			pt.x += b->wid;
182 b822e0d8 2003-09-30 devnull 		}else{
183 b822e0d8 2003-09-30 devnull 			if(b->bc == '\n'){
184 b822e0d8 2003-09-30 devnull 				pt.x = f->r.min.x;
185 b822e0d8 2003-09-30 devnull 				pt.y+=f->font->height;
186 b822e0d8 2003-09-30 devnull 			}else
187 b822e0d8 2003-09-30 devnull 				pt.x += _frnewwid(f, pt, b);
188 b822e0d8 2003-09-30 devnull 		}
189 b822e0d8 2003-09-30 devnull 	}
190 b822e0d8 2003-09-30 devnull 	return pt;
191 b822e0d8 2003-09-30 devnull }
192 b822e0d8 2003-09-30 devnull 
193 b822e0d8 2003-09-30 devnull int
194 b822e0d8 2003-09-30 devnull _frstrlen(Frame *f, int nb)
195 b822e0d8 2003-09-30 devnull {
196 b822e0d8 2003-09-30 devnull 	int n;
197 b822e0d8 2003-09-30 devnull 
198 b822e0d8 2003-09-30 devnull 	for(n=0; nb<f->nbox; nb++)
199 b822e0d8 2003-09-30 devnull 		n += NRUNE(&f->box[nb]);
200 b822e0d8 2003-09-30 devnull 	return n;
201 b822e0d8 2003-09-30 devnull }