1 84b1cb73 2003-09-30 devnull #include <u.h>
  2 84b1cb73 2003-09-30 devnull #include <libc.h>
  3 84b1cb73 2003-09-30 devnull #include <draw.h>
  4 84b1cb73 2003-09-30 devnull #include <thread.h>
  5 84b1cb73 2003-09-30 devnull #include <mouse.h>
  6 84b1cb73 2003-09-30 devnull #include <cursor.h>
  7 84b1cb73 2003-09-30 devnull #include <keyboard.h>
  8 84b1cb73 2003-09-30 devnull #include <frame.h>
  9 84b1cb73 2003-09-30 devnull #include "flayer.h"
 10 84b1cb73 2003-09-30 devnull #include "samterm.h"
 11 84b1cb73 2003-09-30 devnull 
 12 84b1cb73 2003-09-30 devnull Text	cmd;
 13 84b1cb73 2003-09-30 devnull Rune	*scratch;
 14 84b1cb73 2003-09-30 devnull long	nscralloc;
 15 84b1cb73 2003-09-30 devnull Cursor	*cursor;
 16 84b1cb73 2003-09-30 devnull Flayer	*which = 0;
 17 84b1cb73 2003-09-30 devnull Flayer	*work = 0;
 18 84b1cb73 2003-09-30 devnull long	snarflen;
 19 84b1cb73 2003-09-30 devnull long	typestart = -1;
 20 84b1cb73 2003-09-30 devnull long	typeend = -1;
 21 84b1cb73 2003-09-30 devnull long	typeesc = -1;
 22 84b1cb73 2003-09-30 devnull long	modified = 0;		/* strange lookahead for menus */
 23 84b1cb73 2003-09-30 devnull char	hostlock = 1;
 24 84b1cb73 2003-09-30 devnull char	hasunlocked = 0;
 25 84b1cb73 2003-09-30 devnull int	maxtab = 8;
 26 84b1cb73 2003-09-30 devnull 
 27 84b1cb73 2003-09-30 devnull void
 28 84b1cb73 2003-09-30 devnull threadmain(int argc, char *argv[])
 29 84b1cb73 2003-09-30 devnull {
 30 84b1cb73 2003-09-30 devnull 	int i, got, scr;
 31 84b1cb73 2003-09-30 devnull 	Text *t;
 32 84b1cb73 2003-09-30 devnull 	Rectangle r;
 33 84b1cb73 2003-09-30 devnull 	Flayer *nwhich;
 34 941c9f36 2003-10-11 devnull 
 35 941c9f36 2003-10-11 devnull 	/*
 36 941c9f36 2003-10-11 devnull 	 * sam is talking to us on fd 0 and 1.
 37 941c9f36 2003-10-11 devnull 	 * move these elsewhere so that if we accidentally
 38 941c9f36 2003-10-11 devnull 	 * use 0 and 1 in other code, nothing bad happens.
 39 941c9f36 2003-10-11 devnull 	 */
 40 941c9f36 2003-10-11 devnull 	dup(0, 3);
 41 941c9f36 2003-10-11 devnull 	dup(1, 4);
 42 941c9f36 2003-10-11 devnull 	hostfd[0] = 3;
 43 941c9f36 2003-10-11 devnull 	hostfd[1] = 4;
 44 941c9f36 2003-10-11 devnull 	close(0);
 45 941c9f36 2003-10-11 devnull 	close(1);
 46 941c9f36 2003-10-11 devnull 	open("/dev/null", OREAD);
 47 a19ff5b2 2005-01-07 devnull 	if(open("/dev/tty", OWRITE) < 0)
 48 a19ff5b2 2005-01-07 devnull 		open("/dev/null", OWRITE);
 49 a19ff5b2 2005-01-07 devnull dup(2, 1);
 50 84b1cb73 2003-09-30 devnull 
 51 a19ff5b2 2005-01-07 devnull 	if(protodebug) print("getscreen\n");
 52 84b1cb73 2003-09-30 devnull 	getscreen(argc, argv);
 53 a19ff5b2 2005-01-07 devnull 	if(protodebug) print("iconinit\n");
 54 84b1cb73 2003-09-30 devnull 	iconinit();
 55 a19ff5b2 2005-01-07 devnull 	if(protodebug) print("initio\n");
 56 84b1cb73 2003-09-30 devnull 	initio();
 57 a19ff5b2 2005-01-07 devnull 	if(protodebug) print("scratch\n");
 58 84b1cb73 2003-09-30 devnull 	scratch = alloc(100*RUNESIZE);
 59 84b1cb73 2003-09-30 devnull 	nscralloc = 100;
 60 84b1cb73 2003-09-30 devnull 	r = screen->r;
 61 84b1cb73 2003-09-30 devnull 	r.max.y = r.min.y+Dy(r)/5;
 62 a19ff5b2 2005-01-07 devnull 	if(protodebug) print("flstart\n");
 63 84b1cb73 2003-09-30 devnull 	flstart(screen->clipr);
 64 84b1cb73 2003-09-30 devnull 	rinit(&cmd.rasp);
 65 84b1cb73 2003-09-30 devnull 	flnew(&cmd.l[0], gettext, 1, &cmd);
 66 84b1cb73 2003-09-30 devnull 	flinit(&cmd.l[0], r, font, cmdcols);
 67 84b1cb73 2003-09-30 devnull 	cmd.nwin = 1;
 68 84b1cb73 2003-09-30 devnull 	which = &cmd.l[0];
 69 84b1cb73 2003-09-30 devnull 	cmd.tag = Untagged;
 70 84b1cb73 2003-09-30 devnull 	outTs(Tversion, VERSION);
 71 84b1cb73 2003-09-30 devnull 	startnewfile(Tstartcmdfile, &cmd);
 72 84b1cb73 2003-09-30 devnull 
 73 84b1cb73 2003-09-30 devnull 	got = 0;
 74 a19ff5b2 2005-01-07 devnull 	if(protodebug) print("loop\n");
 75 84b1cb73 2003-09-30 devnull 	for(;;got = waitforio()){
 76 84b1cb73 2003-09-30 devnull 		if(hasunlocked && RESIZED())
 77 84b1cb73 2003-09-30 devnull 			resize();
 78 84b1cb73 2003-09-30 devnull 		if(got&(1<<RHost))
 79 84b1cb73 2003-09-30 devnull 			rcv();
 80 84b1cb73 2003-09-30 devnull 		if(got&(1<<RPlumb)){
 81 84b1cb73 2003-09-30 devnull 			for(i=0; cmd.l[i].textfn==0; i++)
 82 84b1cb73 2003-09-30 devnull 				;
 83 84b1cb73 2003-09-30 devnull 			current(&cmd.l[i]);
 84 84b1cb73 2003-09-30 devnull 			flsetselect(which, cmd.rasp.nrunes, cmd.rasp.nrunes);
 85 84b1cb73 2003-09-30 devnull 			type(which, RPlumb);
 86 84b1cb73 2003-09-30 devnull 		}
 87 84b1cb73 2003-09-30 devnull 		if(got&(1<<RKeyboard))
 88 84b1cb73 2003-09-30 devnull 			if(which)
 89 84b1cb73 2003-09-30 devnull 				type(which, RKeyboard);
 90 84b1cb73 2003-09-30 devnull 			else
 91 84b1cb73 2003-09-30 devnull 				kbdblock();
 92 84b1cb73 2003-09-30 devnull 		if(got&(1<<RMouse)){
 93 84b1cb73 2003-09-30 devnull 			if(hostlock==2 || !ptinrect(mousep->xy, screen->r)){
 94 84b1cb73 2003-09-30 devnull 				mouseunblock();
 95 84b1cb73 2003-09-30 devnull 				continue;
 96 84b1cb73 2003-09-30 devnull 			}
 97 84b1cb73 2003-09-30 devnull 			nwhich = flwhich(mousep->xy);
 98 84b1cb73 2003-09-30 devnull 			scr = which && ptinrect(mousep->xy, which->scroll);
 99 84b1cb73 2003-09-30 devnull 			if(mousep->buttons)
100 84b1cb73 2003-09-30 devnull 				flushtyping(1);
101 84b1cb73 2003-09-30 devnull 			if(mousep->buttons&1){
102 84b1cb73 2003-09-30 devnull 				if(nwhich){
103 84b1cb73 2003-09-30 devnull 					if(nwhich!=which)
104 84b1cb73 2003-09-30 devnull 						current(nwhich);
105 84b1cb73 2003-09-30 devnull 					else if(scr)
106 84b1cb73 2003-09-30 devnull 						scroll(which, 1);
107 84b1cb73 2003-09-30 devnull 					else{
108 84b1cb73 2003-09-30 devnull 						t=(Text *)which->user1;
109 84b1cb73 2003-09-30 devnull 						if(flselect(which)){
110 84b1cb73 2003-09-30 devnull 							outTsl(Tdclick, t->tag, which->p0);
111 84b1cb73 2003-09-30 devnull 							t->lock++;
112 84b1cb73 2003-09-30 devnull 						}else if(t!=&cmd)
113 84b1cb73 2003-09-30 devnull 							outcmd();
114 84b1cb73 2003-09-30 devnull 					}
115 84b1cb73 2003-09-30 devnull 				}
116 84b1cb73 2003-09-30 devnull 			}else if((mousep->buttons&2) && which){
117 84b1cb73 2003-09-30 devnull 				if(scr)
118 84b1cb73 2003-09-30 devnull 					scroll(which, 2);
119 84b1cb73 2003-09-30 devnull 				else
120 84b1cb73 2003-09-30 devnull 					menu2hit();
121 84b1cb73 2003-09-30 devnull 			}else if((mousep->buttons&4)){
122 84b1cb73 2003-09-30 devnull 				if(scr)
123 84b1cb73 2003-09-30 devnull 					scroll(which, 3);
124 84b1cb73 2003-09-30 devnull 				else
125 84b1cb73 2003-09-30 devnull 					menu3hit();
126 84b1cb73 2003-09-30 devnull 			}
127 84b1cb73 2003-09-30 devnull 			mouseunblock();
128 84b1cb73 2003-09-30 devnull 		}
129 84b1cb73 2003-09-30 devnull 	}
130 84b1cb73 2003-09-30 devnull }
131 84b1cb73 2003-09-30 devnull 
132 84b1cb73 2003-09-30 devnull 
133 84b1cb73 2003-09-30 devnull void
134 84b1cb73 2003-09-30 devnull resize(void)
135 84b1cb73 2003-09-30 devnull {
136 84b1cb73 2003-09-30 devnull 	int i;
137 84b1cb73 2003-09-30 devnull 
138 84b1cb73 2003-09-30 devnull 	flresize(screen->clipr);
139 84b1cb73 2003-09-30 devnull 	for(i = 0; i<nname; i++)
140 84b1cb73 2003-09-30 devnull 		if(text[i])
141 84b1cb73 2003-09-30 devnull 			hcheck(text[i]->tag);
142 84b1cb73 2003-09-30 devnull }
143 84b1cb73 2003-09-30 devnull 
144 84b1cb73 2003-09-30 devnull void
145 84b1cb73 2003-09-30 devnull current(Flayer *nw)
146 84b1cb73 2003-09-30 devnull {
147 84b1cb73 2003-09-30 devnull 	Text *t;
148 84b1cb73 2003-09-30 devnull 
149 84b1cb73 2003-09-30 devnull 	if(which)
150 84b1cb73 2003-09-30 devnull 		flborder(which, 0);
151 84b1cb73 2003-09-30 devnull 	if(nw){
152 84b1cb73 2003-09-30 devnull 		flushtyping(1);
153 84b1cb73 2003-09-30 devnull 		flupfront(nw);
154 84b1cb73 2003-09-30 devnull 		flborder(nw, 1);
155 84b1cb73 2003-09-30 devnull 		buttons(Up);
156 84b1cb73 2003-09-30 devnull 		t = (Text *)nw->user1;
157 84b1cb73 2003-09-30 devnull 		t->front = nw-&t->l[0];
158 84b1cb73 2003-09-30 devnull 		if(t != &cmd)
159 84b1cb73 2003-09-30 devnull 			work = nw;
160 84b1cb73 2003-09-30 devnull 	}
161 84b1cb73 2003-09-30 devnull 	which = nw;
162 84b1cb73 2003-09-30 devnull }
163 84b1cb73 2003-09-30 devnull 
164 84b1cb73 2003-09-30 devnull void
165 84b1cb73 2003-09-30 devnull closeup(Flayer *l)
166 84b1cb73 2003-09-30 devnull {
167 84b1cb73 2003-09-30 devnull 	Text *t=(Text *)l->user1;
168 84b1cb73 2003-09-30 devnull 	int m;
169 84b1cb73 2003-09-30 devnull 
170 84b1cb73 2003-09-30 devnull 	m = whichmenu(t->tag);
171 84b1cb73 2003-09-30 devnull 	if(m < 0)
172 84b1cb73 2003-09-30 devnull 		return;
173 84b1cb73 2003-09-30 devnull 	flclose(l);
174 84b1cb73 2003-09-30 devnull 	if(l == which){
175 84b1cb73 2003-09-30 devnull 		which = 0;
176 84b1cb73 2003-09-30 devnull 		current(flwhich(Pt(0, 0)));
177 84b1cb73 2003-09-30 devnull 	}
178 84b1cb73 2003-09-30 devnull 	if(l == work)
179 84b1cb73 2003-09-30 devnull 		work = 0;
180 84b1cb73 2003-09-30 devnull 	if(--t->nwin == 0){
181 84b1cb73 2003-09-30 devnull 		rclear(&t->rasp);
182 84b1cb73 2003-09-30 devnull 		free((uchar *)t);
183 84b1cb73 2003-09-30 devnull 		text[m] = 0;
184 84b1cb73 2003-09-30 devnull 	}else if(l == &t->l[t->front]){
185 84b1cb73 2003-09-30 devnull 		for(m=0; m<NL; m++)	/* find one; any one will do */
186 84b1cb73 2003-09-30 devnull 			if(t->l[m].textfn){
187 84b1cb73 2003-09-30 devnull 				t->front = m;
188 84b1cb73 2003-09-30 devnull 				return;
189 84b1cb73 2003-09-30 devnull 			}
190 84b1cb73 2003-09-30 devnull 		panic("close");
191 84b1cb73 2003-09-30 devnull 	}
192 84b1cb73 2003-09-30 devnull }
193 84b1cb73 2003-09-30 devnull 
194 84b1cb73 2003-09-30 devnull Flayer *
195 84b1cb73 2003-09-30 devnull findl(Text *t)
196 84b1cb73 2003-09-30 devnull {
197 84b1cb73 2003-09-30 devnull 	int i;
198 84b1cb73 2003-09-30 devnull 	for(i = 0; i<NL; i++)
199 84b1cb73 2003-09-30 devnull 		if(t->l[i].textfn==0)
200 84b1cb73 2003-09-30 devnull 			return &t->l[i];
201 84b1cb73 2003-09-30 devnull 	return 0;
202 84b1cb73 2003-09-30 devnull }
203 84b1cb73 2003-09-30 devnull 
204 84b1cb73 2003-09-30 devnull void
205 84b1cb73 2003-09-30 devnull duplicate(Flayer *l, Rectangle r, Font *f, int close)
206 84b1cb73 2003-09-30 devnull {
207 84b1cb73 2003-09-30 devnull 	Text *t=(Text *)l->user1;
208 84b1cb73 2003-09-30 devnull 	Flayer *nl = findl(t);
209 84b1cb73 2003-09-30 devnull 	Rune *rp;
210 84b1cb73 2003-09-30 devnull 	ulong n;
211 84b1cb73 2003-09-30 devnull 
212 84b1cb73 2003-09-30 devnull 	if(nl){
213 84b1cb73 2003-09-30 devnull 		flnew(nl, gettext, l->user0, (char *)t);
214 84b1cb73 2003-09-30 devnull 		flinit(nl, r, f, l->f.cols);
215 84b1cb73 2003-09-30 devnull 		nl->origin = l->origin;
216 84b1cb73 2003-09-30 devnull 		rp = (*l->textfn)(l, l->f.nchars, &n);
217 84b1cb73 2003-09-30 devnull 		flinsert(nl, rp, rp+n, l->origin);
218 84b1cb73 2003-09-30 devnull 		flsetselect(nl, l->p0, l->p1);
219 84b1cb73 2003-09-30 devnull 		if(close){
220 84b1cb73 2003-09-30 devnull 			flclose(l);
221 84b1cb73 2003-09-30 devnull 			if(l==which)
222 84b1cb73 2003-09-30 devnull 				which = 0;
223 84b1cb73 2003-09-30 devnull 		}else
224 84b1cb73 2003-09-30 devnull 			t->nwin++;
225 84b1cb73 2003-09-30 devnull 		current(nl);
226 84b1cb73 2003-09-30 devnull 		hcheck(t->tag);
227 84b1cb73 2003-09-30 devnull 	}
228 84b1cb73 2003-09-30 devnull 	setcursor(mousectl, cursor);
229 84b1cb73 2003-09-30 devnull }
230 84b1cb73 2003-09-30 devnull 
231 84b1cb73 2003-09-30 devnull void
232 84b1cb73 2003-09-30 devnull buttons(int updown)
233 84b1cb73 2003-09-30 devnull {
234 84b1cb73 2003-09-30 devnull 	while(((mousep->buttons&7)!=0) != updown)
235 84b1cb73 2003-09-30 devnull 		getmouse();
236 84b1cb73 2003-09-30 devnull }
237 84b1cb73 2003-09-30 devnull 
238 84b1cb73 2003-09-30 devnull int
239 84b1cb73 2003-09-30 devnull getr(Rectangle *rp)
240 84b1cb73 2003-09-30 devnull {
241 84b1cb73 2003-09-30 devnull 	Point p;
242 84b1cb73 2003-09-30 devnull 	Rectangle r;
243 84b1cb73 2003-09-30 devnull 
244 84b1cb73 2003-09-30 devnull 	*rp = getrect(3, mousectl);
245 84b1cb73 2003-09-30 devnull 	if(rp->max.x && rp->max.x-rp->min.x<=5 && rp->max.y-rp->min.y<=5){
246 84b1cb73 2003-09-30 devnull 		p = rp->min;
247 84b1cb73 2003-09-30 devnull 		r = cmd.l[cmd.front].entire;
248 84b1cb73 2003-09-30 devnull 		*rp = screen->r;
249 84b1cb73 2003-09-30 devnull 		if(cmd.nwin==1){
250 84b1cb73 2003-09-30 devnull 			if (p.y <= r.min.y)
251 84b1cb73 2003-09-30 devnull 				rp->max.y = r.min.y;
252 84b1cb73 2003-09-30 devnull 			else if (p.y >= r.max.y)
253 84b1cb73 2003-09-30 devnull 				rp->min.y = r.max.y;
254 84b1cb73 2003-09-30 devnull 			if (p.x <= r.min.x)
255 84b1cb73 2003-09-30 devnull 				rp->max.x = r.min.x;
256 84b1cb73 2003-09-30 devnull 			else if (p.x >= r.max.x)
257 84b1cb73 2003-09-30 devnull 				rp->min.x = r.max.x;
258 84b1cb73 2003-09-30 devnull 		}
259 84b1cb73 2003-09-30 devnull 	}
260 84b1cb73 2003-09-30 devnull 	return rectclip(rp, screen->r) &&
261 84b1cb73 2003-09-30 devnull 	   rp->max.x-rp->min.x>100 && rp->max.y-rp->min.y>40;
262 84b1cb73 2003-09-30 devnull }
263 84b1cb73 2003-09-30 devnull 
264 84b1cb73 2003-09-30 devnull void
265 84b1cb73 2003-09-30 devnull snarf(Text *t, int w)
266 84b1cb73 2003-09-30 devnull {
267 84b1cb73 2003-09-30 devnull 	Flayer *l = &t->l[w];
268 84b1cb73 2003-09-30 devnull 
269 84b1cb73 2003-09-30 devnull 	if(l->p1>l->p0){
270 84b1cb73 2003-09-30 devnull 		snarflen = l->p1-l->p0;
271 84b1cb73 2003-09-30 devnull 		outTsll(Tsnarf, t->tag, l->p0, l->p1);
272 84b1cb73 2003-09-30 devnull 	}
273 84b1cb73 2003-09-30 devnull }
274 84b1cb73 2003-09-30 devnull 
275 84b1cb73 2003-09-30 devnull void
276 84b1cb73 2003-09-30 devnull cut(Text *t, int w, int save, int check)
277 84b1cb73 2003-09-30 devnull {
278 84b1cb73 2003-09-30 devnull 	long p0, p1;
279 84b1cb73 2003-09-30 devnull 	Flayer *l;
280 84b1cb73 2003-09-30 devnull 
281 84b1cb73 2003-09-30 devnull 	l = &t->l[w];
282 84b1cb73 2003-09-30 devnull 	p0 = l->p0;
283 84b1cb73 2003-09-30 devnull 	p1 = l->p1;
284 84b1cb73 2003-09-30 devnull 	if(p0 == p1)
285 84b1cb73 2003-09-30 devnull 		return;
286 84b1cb73 2003-09-30 devnull 	if(p0 < 0)
287 84b1cb73 2003-09-30 devnull 		panic("cut");
288 84b1cb73 2003-09-30 devnull 	if(save)
289 84b1cb73 2003-09-30 devnull 		snarf(t, w);
290 84b1cb73 2003-09-30 devnull 	outTsll(Tcut, t->tag, p0, p1);
291 84b1cb73 2003-09-30 devnull 	flsetselect(l, p0, p0);
292 84b1cb73 2003-09-30 devnull 	t->lock++;
293 84b1cb73 2003-09-30 devnull 	hcut(t->tag, p0, p1-p0);
294 84b1cb73 2003-09-30 devnull 	if(check)
295 84b1cb73 2003-09-30 devnull 		hcheck(t->tag);
296 84b1cb73 2003-09-30 devnull }
297 84b1cb73 2003-09-30 devnull 
298 84b1cb73 2003-09-30 devnull void
299 84b1cb73 2003-09-30 devnull paste(Text *t, int w)
300 84b1cb73 2003-09-30 devnull {
301 84b1cb73 2003-09-30 devnull 	if(snarflen){
302 84b1cb73 2003-09-30 devnull 		cut(t, w, 0, 0);
303 84b1cb73 2003-09-30 devnull 		t->lock++;
304 84b1cb73 2003-09-30 devnull 		outTsl(Tpaste, t->tag, t->l[w].p0);
305 84b1cb73 2003-09-30 devnull 	}
306 84b1cb73 2003-09-30 devnull }
307 84b1cb73 2003-09-30 devnull 
308 84b1cb73 2003-09-30 devnull void
309 84b1cb73 2003-09-30 devnull scrorigin(Flayer *l, int but, long p0)
310 84b1cb73 2003-09-30 devnull {
311 84b1cb73 2003-09-30 devnull 	Text *t=(Text *)l->user1;
312 84b1cb73 2003-09-30 devnull 
313 84b1cb73 2003-09-30 devnull 	switch(but){
314 84b1cb73 2003-09-30 devnull 	case 1:
315 84b1cb73 2003-09-30 devnull 		outTsll(Torigin, t->tag, l->origin, p0);
316 84b1cb73 2003-09-30 devnull 		break;
317 84b1cb73 2003-09-30 devnull 	case 2:
318 84b1cb73 2003-09-30 devnull 		outTsll(Torigin, t->tag, p0, 1L);
319 84b1cb73 2003-09-30 devnull 		break;
320 84b1cb73 2003-09-30 devnull 	case 3:
321 84b1cb73 2003-09-30 devnull 		horigin(t->tag,p0);
322 84b1cb73 2003-09-30 devnull 	}
323 84b1cb73 2003-09-30 devnull }
324 84b1cb73 2003-09-30 devnull 
325 84b1cb73 2003-09-30 devnull int
326 84b1cb73 2003-09-30 devnull alnum(int c)
327 84b1cb73 2003-09-30 devnull {
328 84b1cb73 2003-09-30 devnull 	/*
329 84b1cb73 2003-09-30 devnull 	 * Hard to get absolutely right.  Use what we know about ASCII
330 84b1cb73 2003-09-30 devnull 	 * and assume anything above the Latin control characters is
331 84b1cb73 2003-09-30 devnull 	 * potentially an alphanumeric.
332 84b1cb73 2003-09-30 devnull 	 */
333 84b1cb73 2003-09-30 devnull 	if(c<=' ')
334 84b1cb73 2003-09-30 devnull 		return 0;
335 84b1cb73 2003-09-30 devnull 	if(0x7F<=c && c<=0xA0)
336 84b1cb73 2003-09-30 devnull 		return 0;
337 84b1cb73 2003-09-30 devnull 	if(utfrune("!\"#$%&'()*+,-./:;<=>?@[\\]^`{|}~", c))
338 84b1cb73 2003-09-30 devnull 		return 0;
339 84b1cb73 2003-09-30 devnull 	return 1;
340 84b1cb73 2003-09-30 devnull }
341 84b1cb73 2003-09-30 devnull 
342 84b1cb73 2003-09-30 devnull int
343 84b1cb73 2003-09-30 devnull raspc(Rasp *r, long p)
344 84b1cb73 2003-09-30 devnull {
345 84b1cb73 2003-09-30 devnull 	ulong n;
346 84b1cb73 2003-09-30 devnull 	rload(r, p, p+1, &n);
347 84b1cb73 2003-09-30 devnull 	if(n)
348 84b1cb73 2003-09-30 devnull 		return scratch[0];
349 84b1cb73 2003-09-30 devnull 	return 0;
350 84b1cb73 2003-09-30 devnull }
351 84b1cb73 2003-09-30 devnull 
352 84b1cb73 2003-09-30 devnull long
353 84b1cb73 2003-09-30 devnull ctlw(Rasp *r, long o, long p)
354 84b1cb73 2003-09-30 devnull {
355 84b1cb73 2003-09-30 devnull 	int c;
356 84b1cb73 2003-09-30 devnull 
357 84b1cb73 2003-09-30 devnull 	if(--p < o)
358 84b1cb73 2003-09-30 devnull 		return o;
359 84b1cb73 2003-09-30 devnull 	if(raspc(r, p)=='\n')
360 84b1cb73 2003-09-30 devnull 		return p;
361 84b1cb73 2003-09-30 devnull 	for(; p>=o && !alnum(c=raspc(r, p)); --p)
362 84b1cb73 2003-09-30 devnull 		if(c=='\n')
363 84b1cb73 2003-09-30 devnull 			return p+1;
364 84b1cb73 2003-09-30 devnull 	for(; p>o && alnum(raspc(r, p-1)); --p)
365 84b1cb73 2003-09-30 devnull 		;
366 84b1cb73 2003-09-30 devnull 	return p>=o? p : o;
367 84b1cb73 2003-09-30 devnull }
368 84b1cb73 2003-09-30 devnull 
369 84b1cb73 2003-09-30 devnull long
370 84b1cb73 2003-09-30 devnull ctlu(Rasp *r, long o, long p)
371 84b1cb73 2003-09-30 devnull {
372 17f13194 2003-11-23 devnull 	if(--p < o)
373 17f13194 2003-11-23 devnull 		return o;
374 17f13194 2003-11-23 devnull 	if(raspc(r, p)=='\n')
375 17f13194 2003-11-23 devnull 		return p;
376 84b1cb73 2003-09-30 devnull 	for(; p-1>=o && raspc(r, p-1)!='\n'; --p)
377 84b1cb73 2003-09-30 devnull 		;
378 84b1cb73 2003-09-30 devnull 	return p>=o? p : o;
379 84b1cb73 2003-09-30 devnull }
380 84b1cb73 2003-09-30 devnull 
381 84b1cb73 2003-09-30 devnull int
382 84b1cb73 2003-09-30 devnull center(Flayer *l, long a)
383 84b1cb73 2003-09-30 devnull {
384 84b1cb73 2003-09-30 devnull 	Text *t;
385 84b1cb73 2003-09-30 devnull 
386 84b1cb73 2003-09-30 devnull 	t = l->user1;
387 84b1cb73 2003-09-30 devnull 	if(!t->lock && (a<l->origin || l->origin+l->f.nchars<a)){
388 84b1cb73 2003-09-30 devnull 		if(a > t->rasp.nrunes)
389 84b1cb73 2003-09-30 devnull 			a = t->rasp.nrunes;
390 84b1cb73 2003-09-30 devnull 		outTsll(Torigin, t->tag, a, 2L);
391 84b1cb73 2003-09-30 devnull 		return 1;
392 84b1cb73 2003-09-30 devnull 	}
393 84b1cb73 2003-09-30 devnull 	return 0;
394 84b1cb73 2003-09-30 devnull }
395 84b1cb73 2003-09-30 devnull 
396 84b1cb73 2003-09-30 devnull int
397 84b1cb73 2003-09-30 devnull onethird(Flayer *l, long a)
398 84b1cb73 2003-09-30 devnull {
399 84b1cb73 2003-09-30 devnull 	Text *t;
400 84b1cb73 2003-09-30 devnull 	Rectangle s;
401 84b1cb73 2003-09-30 devnull 	long lines;
402 84b1cb73 2003-09-30 devnull 
403 84b1cb73 2003-09-30 devnull 	t = l->user1;
404 84b1cb73 2003-09-30 devnull 	if(!t->lock && (a<l->origin || l->origin+l->f.nchars<a)){
405 84b1cb73 2003-09-30 devnull 		if(a > t->rasp.nrunes)
406 84b1cb73 2003-09-30 devnull 			a = t->rasp.nrunes;
407 84b1cb73 2003-09-30 devnull 		s = insetrect(l->scroll, 1);
408 84b1cb73 2003-09-30 devnull 		lines = ((s.max.y-s.min.y)/l->f.font->height+1)/3;
409 84b1cb73 2003-09-30 devnull 		if (lines < 2)
410 84b1cb73 2003-09-30 devnull 			lines = 2;
411 84b1cb73 2003-09-30 devnull 		outTsll(Torigin, t->tag, a, lines);
412 84b1cb73 2003-09-30 devnull 		return 1;
413 84b1cb73 2003-09-30 devnull 	}
414 84b1cb73 2003-09-30 devnull 	return 0;
415 84b1cb73 2003-09-30 devnull }
416 84b1cb73 2003-09-30 devnull 
417 84b1cb73 2003-09-30 devnull void
418 84b1cb73 2003-09-30 devnull flushtyping(int clearesc)
419 84b1cb73 2003-09-30 devnull {
420 84b1cb73 2003-09-30 devnull 	Text *t;
421 84b1cb73 2003-09-30 devnull 	ulong n;
422 84b1cb73 2003-09-30 devnull 
423 84b1cb73 2003-09-30 devnull 	if(clearesc)
424 84b1cb73 2003-09-30 devnull 		typeesc = -1;	
425 84b1cb73 2003-09-30 devnull 	if(typestart == typeend) {
426 84b1cb73 2003-09-30 devnull 		modified = 0;
427 84b1cb73 2003-09-30 devnull 		return;
428 84b1cb73 2003-09-30 devnull 	}
429 84b1cb73 2003-09-30 devnull 	t = which->user1;
430 84b1cb73 2003-09-30 devnull 	if(t != &cmd)
431 84b1cb73 2003-09-30 devnull 		modified = 1;
432 84b1cb73 2003-09-30 devnull 	rload(&t->rasp, typestart, typeend, &n);
433 84b1cb73 2003-09-30 devnull 	scratch[n] = 0;
434 84b1cb73 2003-09-30 devnull 	if(t==&cmd && typeend==t->rasp.nrunes && scratch[typeend-typestart-1]=='\n'){
435 84b1cb73 2003-09-30 devnull 		setlock();
436 84b1cb73 2003-09-30 devnull 		outcmd();
437 84b1cb73 2003-09-30 devnull 	}
438 84b1cb73 2003-09-30 devnull 	outTslS(Ttype, t->tag, typestart, scratch);
439 84b1cb73 2003-09-30 devnull 	typestart = -1;
440 84b1cb73 2003-09-30 devnull 	typeend = -1;
441 84b1cb73 2003-09-30 devnull }
442 84b1cb73 2003-09-30 devnull 
443 84b1cb73 2003-09-30 devnull #define	SCROLLKEY	Kdown
444 84b1cb73 2003-09-30 devnull #define	BACKSCROLLKEY	Kup
445 84b1cb73 2003-09-30 devnull #define	ESC		0x1B
446 09a5f197 2004-06-09 devnull #define	HOMEKEY	Khome
447 09a5f197 2004-06-09 devnull #define	ENDKEY	Kend
448 09a5f197 2004-06-09 devnull #define	PAGEUP	Kpgup
449 09a5f197 2004-06-09 devnull #define	PAGEDOWN	Kpgdown
450 ac9d504d 2004-06-17 devnull #define LEFTARROW	Kleft
451 ac9d504d 2004-06-17 devnull #define RIGHTARROW	Kright
452 84b1cb73 2003-09-30 devnull 
453 09a5f197 2004-06-09 devnull int
454 8414847a 2004-06-25 devnull nontypingkey(int c)
455 09a5f197 2004-06-09 devnull {
456 09a5f197 2004-06-09 devnull 	return c==SCROLLKEY || c==BACKSCROLLKEY
457 09a5f197 2004-06-09 devnull 		|| c==LEFTARROW || c==RIGHTARROW
458 09a5f197 2004-06-09 devnull 		|| c==HOMEKEY || c==ENDKEY
459 09a5f197 2004-06-09 devnull 		|| c==PAGEUP || c==PAGEDOWN;
460 09a5f197 2004-06-09 devnull }
461 09a5f197 2004-06-09 devnull 
462 84b1cb73 2003-09-30 devnull void
463 84b1cb73 2003-09-30 devnull type(Flayer *l, int res)	/* what a bloody mess this is */
464 84b1cb73 2003-09-30 devnull {
465 84b1cb73 2003-09-30 devnull 	Text *t = (Text *)l->user1;
466 84b1cb73 2003-09-30 devnull 	Rune buf[100];
467 84b1cb73 2003-09-30 devnull 	Rune *p = buf;
468 84b1cb73 2003-09-30 devnull 	int c, backspacing;
469 84b1cb73 2003-09-30 devnull 	long a, a0;
470 84b1cb73 2003-09-30 devnull 	int scrollkey;
471 84b1cb73 2003-09-30 devnull 
472 84b1cb73 2003-09-30 devnull 	scrollkey = 0;
473 84b1cb73 2003-09-30 devnull 	if(res == RKeyboard)
474 09a5f197 2004-06-09 devnull 		scrollkey = nontypingkey(qpeekc());	/* ICK */
475 84b1cb73 2003-09-30 devnull 
476 84b1cb73 2003-09-30 devnull 	if(hostlock || t->lock){
477 84b1cb73 2003-09-30 devnull 		kbdblock();
478 84b1cb73 2003-09-30 devnull 		return;
479 84b1cb73 2003-09-30 devnull 	}
480 84b1cb73 2003-09-30 devnull 	a = l->p0;
481 84b1cb73 2003-09-30 devnull 	if(a!=l->p1 && !scrollkey){
482 84b1cb73 2003-09-30 devnull 		flushtyping(1);
483 84b1cb73 2003-09-30 devnull 		cut(t, t->front, 1, 1);
484 84b1cb73 2003-09-30 devnull 		return;	/* it may now be locked */
485 84b1cb73 2003-09-30 devnull 	}
486 84b1cb73 2003-09-30 devnull 	backspacing = 0;
487 84b1cb73 2003-09-30 devnull 	while((c = kbdchar())>0){
488 84b1cb73 2003-09-30 devnull 		if(res == RKeyboard){
489 09a5f197 2004-06-09 devnull 			if(nontypingkey(c) || c==ESC)
490 84b1cb73 2003-09-30 devnull 				break;
491 84b1cb73 2003-09-30 devnull 			/* backspace, ctrl-u, ctrl-w, del */
492 84b1cb73 2003-09-30 devnull 			if(c=='\b' || c==0x15 || c==0x17 || c==0x7F){
493 84b1cb73 2003-09-30 devnull 				backspacing = 1;
494 84b1cb73 2003-09-30 devnull 				break;
495 84b1cb73 2003-09-30 devnull 			}
496 84b1cb73 2003-09-30 devnull 		}
497 84b1cb73 2003-09-30 devnull 		*p++ = c;
498 84b1cb73 2003-09-30 devnull 		if(c == '\n' || p >= buf+sizeof(buf)/sizeof(buf[0]))
499 84b1cb73 2003-09-30 devnull 			break;
500 84b1cb73 2003-09-30 devnull 	}
501 84b1cb73 2003-09-30 devnull 	if(p > buf){
502 84b1cb73 2003-09-30 devnull 		if(typestart < 0)
503 84b1cb73 2003-09-30 devnull 			typestart = a;
504 84b1cb73 2003-09-30 devnull 		if(typeesc < 0)
505 84b1cb73 2003-09-30 devnull 			typeesc = a;
506 84b1cb73 2003-09-30 devnull 		hgrow(t->tag, a, p-buf, 0);
507 84b1cb73 2003-09-30 devnull 		t->lock++;	/* pretend we Trequest'ed for hdatarune*/
508 84b1cb73 2003-09-30 devnull 		hdatarune(t->tag, a, buf, p-buf);
509 84b1cb73 2003-09-30 devnull 		a += p-buf;
510 84b1cb73 2003-09-30 devnull 		l->p0 = a;
511 84b1cb73 2003-09-30 devnull 		l->p1 = a;
512 84b1cb73 2003-09-30 devnull 		typeend = a;
513 84b1cb73 2003-09-30 devnull 		if(c=='\n' || typeend-typestart>100)
514 84b1cb73 2003-09-30 devnull 			flushtyping(0);
515 84b1cb73 2003-09-30 devnull 		onethird(l, a);
516 84b1cb73 2003-09-30 devnull 	}
517 09a5f197 2004-06-09 devnull 	if(c==SCROLLKEY || c==PAGEDOWN){
518 84b1cb73 2003-09-30 devnull 		flushtyping(0);
519 84b1cb73 2003-09-30 devnull 		center(l, l->origin+l->f.nchars+1);
520 09a5f197 2004-06-09 devnull 	}else if(c==BACKSCROLLKEY || c==PAGEUP){
521 84b1cb73 2003-09-30 devnull 		flushtyping(0);
522 84b1cb73 2003-09-30 devnull 		a0 = l->origin-l->f.nchars;
523 84b1cb73 2003-09-30 devnull 		if(a0 < 0)
524 84b1cb73 2003-09-30 devnull 			a0 = 0;
525 84b1cb73 2003-09-30 devnull 		center(l, a0);
526 09a5f197 2004-06-09 devnull 	}else if(c == RIGHTARROW){
527 09a5f197 2004-06-09 devnull 		flushtyping(0);
528 09a5f197 2004-06-09 devnull 		a0 = l->p0;
529 09a5f197 2004-06-09 devnull 		if(a0 < t->rasp.nrunes)
530 09a5f197 2004-06-09 devnull 			a0++;
531 09a5f197 2004-06-09 devnull 		flsetselect(l, a0, a0);
532 09a5f197 2004-06-09 devnull 		center(l, a0);
533 09a5f197 2004-06-09 devnull 	}else if(c == LEFTARROW){
534 09a5f197 2004-06-09 devnull 		flushtyping(0);
535 09a5f197 2004-06-09 devnull 		a0 = l->p0;
536 09a5f197 2004-06-09 devnull 		if(a0 > 0)
537 09a5f197 2004-06-09 devnull 			a0--;
538 09a5f197 2004-06-09 devnull 		flsetselect(l, a0, a0);
539 09a5f197 2004-06-09 devnull 		center(l, a0);
540 09a5f197 2004-06-09 devnull 	}else if(c == HOMEKEY){
541 09a5f197 2004-06-09 devnull 		flushtyping(0);
542 09a5f197 2004-06-09 devnull 		center(l, 0);
543 09a5f197 2004-06-09 devnull 	}else if(c == ENDKEY){
544 09a5f197 2004-06-09 devnull 		flushtyping(0);
545 09a5f197 2004-06-09 devnull 		center(l, t->rasp.nrunes);
546 84b1cb73 2003-09-30 devnull 	}else if(backspacing && !hostlock){
547 ac9d504d 2004-06-17 devnull 		/* backspacing immediately after outcmd(): sorry */
548 84b1cb73 2003-09-30 devnull 		if(l->f.p0>0 && a>0){
549 84b1cb73 2003-09-30 devnull 			switch(c){
550 84b1cb73 2003-09-30 devnull 			case '\b':
551 84b1cb73 2003-09-30 devnull 			case 0x7F:	/* del */
552 84b1cb73 2003-09-30 devnull 				l->p0 = a-1;
553 84b1cb73 2003-09-30 devnull 				break;
554 84b1cb73 2003-09-30 devnull 			case 0x15:	/* ctrl-u */
555 84b1cb73 2003-09-30 devnull 				l->p0 = ctlu(&t->rasp, l->origin, a);
556 84b1cb73 2003-09-30 devnull 				break;
557 84b1cb73 2003-09-30 devnull 			case 0x17:	/* ctrl-w */
558 84b1cb73 2003-09-30 devnull 				l->p0 = ctlw(&t->rasp, l->origin, a);
559 84b1cb73 2003-09-30 devnull 				break;
560 84b1cb73 2003-09-30 devnull 			}
561 84b1cb73 2003-09-30 devnull 			l->p1 = a;
562 84b1cb73 2003-09-30 devnull 			if(l->p1 != l->p0){
563 84b1cb73 2003-09-30 devnull 				/* cut locally if possible */
564 84b1cb73 2003-09-30 devnull 				if(typestart<=l->p0 && l->p1<=typeend){
565 84b1cb73 2003-09-30 devnull 					t->lock++;	/* to call hcut */
566 84b1cb73 2003-09-30 devnull 					hcut(t->tag, l->p0, l->p1-l->p0);
567 84b1cb73 2003-09-30 devnull 					/* hcheck is local because we know rasp is contiguous */
568 84b1cb73 2003-09-30 devnull 					hcheck(t->tag);
569 84b1cb73 2003-09-30 devnull 				}else{
570 84b1cb73 2003-09-30 devnull 					flushtyping(0);
571 84b1cb73 2003-09-30 devnull 					cut(t, t->front, 0, 1);
572 84b1cb73 2003-09-30 devnull 				}
573 84b1cb73 2003-09-30 devnull 			}
574 84b1cb73 2003-09-30 devnull 			if(typeesc >= l->p0)
575 84b1cb73 2003-09-30 devnull 				typeesc = l->p0;
576 84b1cb73 2003-09-30 devnull 			if(typestart >= 0){
577 84b1cb73 2003-09-30 devnull 				if(typestart >= l->p0)
578 84b1cb73 2003-09-30 devnull 					typestart = l->p0;
579 84b1cb73 2003-09-30 devnull 				typeend = l->p0;
580 84b1cb73 2003-09-30 devnull 				if(typestart == typeend){
581 84b1cb73 2003-09-30 devnull 					typestart = -1;
582 84b1cb73 2003-09-30 devnull 					typeend = -1;
583 84b1cb73 2003-09-30 devnull 					modified = 0;
584 84b1cb73 2003-09-30 devnull 				}
585 84b1cb73 2003-09-30 devnull 			}
586 84b1cb73 2003-09-30 devnull 		}
587 84b1cb73 2003-09-30 devnull 	}else{
588 84b1cb73 2003-09-30 devnull 		if(c==ESC && typeesc>=0){
589 84b1cb73 2003-09-30 devnull 			l->p0 = typeesc;
590 84b1cb73 2003-09-30 devnull 			l->p1 = a;
591 84b1cb73 2003-09-30 devnull 			flushtyping(1);
592 84b1cb73 2003-09-30 devnull 		}
593 84b1cb73 2003-09-30 devnull 		for(l=t->l; l<&t->l[NL]; l++)
594 84b1cb73 2003-09-30 devnull 			if(l->textfn)
595 84b1cb73 2003-09-30 devnull 				flsetselect(l, l->p0, l->p1);
596 84b1cb73 2003-09-30 devnull 	}
597 84b1cb73 2003-09-30 devnull }
598 84b1cb73 2003-09-30 devnull 
599 84b1cb73 2003-09-30 devnull 
600 84b1cb73 2003-09-30 devnull void
601 84b1cb73 2003-09-30 devnull outcmd(void){
602 84b1cb73 2003-09-30 devnull 	if(work)
603 84b1cb73 2003-09-30 devnull 		outTsll(Tworkfile, ((Text *)work->user1)->tag, work->p0, work->p1);
604 84b1cb73 2003-09-30 devnull }
605 84b1cb73 2003-09-30 devnull 
606 84b1cb73 2003-09-30 devnull void
607 84b1cb73 2003-09-30 devnull panic(char *s)
608 84b1cb73 2003-09-30 devnull {
609 84b1cb73 2003-09-30 devnull 	panic1(display, s);
610 84b1cb73 2003-09-30 devnull }
611 84b1cb73 2003-09-30 devnull 
612 84b1cb73 2003-09-30 devnull void
613 84b1cb73 2003-09-30 devnull panic1(Display *d, char *s)
614 84b1cb73 2003-09-30 devnull {
615 84b1cb73 2003-09-30 devnull 	fprint(2, "samterm:panic: ");
616 84b1cb73 2003-09-30 devnull 	perror(s);
617 84b1cb73 2003-09-30 devnull 	abort();
618 84b1cb73 2003-09-30 devnull }
619 84b1cb73 2003-09-30 devnull 
620 84b1cb73 2003-09-30 devnull Rune*
621 84b1cb73 2003-09-30 devnull gettext(Flayer *l, long n, ulong *np)
622 84b1cb73 2003-09-30 devnull {
623 84b1cb73 2003-09-30 devnull 	Text *t;
624 84b1cb73 2003-09-30 devnull 
625 84b1cb73 2003-09-30 devnull 	t = l->user1;
626 84b1cb73 2003-09-30 devnull 	rload(&t->rasp, l->origin, l->origin+n, np);
627 84b1cb73 2003-09-30 devnull 	return scratch;
628 84b1cb73 2003-09-30 devnull }
629 84b1cb73 2003-09-30 devnull 
630 84b1cb73 2003-09-30 devnull long
631 84b1cb73 2003-09-30 devnull scrtotal(Flayer *l)
632 84b1cb73 2003-09-30 devnull {
633 84b1cb73 2003-09-30 devnull 	return ((Text *)l->user1)->rasp.nrunes;
634 84b1cb73 2003-09-30 devnull }
635 84b1cb73 2003-09-30 devnull 
636 84b1cb73 2003-09-30 devnull void*
637 84b1cb73 2003-09-30 devnull alloc(ulong n)
638 84b1cb73 2003-09-30 devnull {
639 84b1cb73 2003-09-30 devnull 	void *p;
640 84b1cb73 2003-09-30 devnull 
641 84b1cb73 2003-09-30 devnull 	p = malloc(n);
642 84b1cb73 2003-09-30 devnull 	if(p == 0)
643 84b1cb73 2003-09-30 devnull 		panic("alloc");
644 84b1cb73 2003-09-30 devnull 	memset(p, 0, n);
645 84b1cb73 2003-09-30 devnull 	return p;
646 84b1cb73 2003-09-30 devnull }