1 b3994ec5 2003-12-11 devnull #include <u.h>
2 b3994ec5 2003-12-11 devnull #include <libc.h>
3 b3994ec5 2003-12-11 devnull #include <draw.h>
4 b3994ec5 2003-12-11 devnull #include <thread.h>
5 b3994ec5 2003-12-11 devnull #include <cursor.h>
6 b3994ec5 2003-12-11 devnull #include <mouse.h>
7 b3994ec5 2003-12-11 devnull #include <keyboard.h>
8 b3994ec5 2003-12-11 devnull #include <frame.h>
9 b3994ec5 2003-12-11 devnull #include <fcall.h>
10 b3994ec5 2003-12-11 devnull #include <plumb.h>
11 c1973705 2004-02-09 devnull #include <complete.h>
12 b3994ec5 2003-12-11 devnull #include "dat.h"
13 b3994ec5 2003-12-11 devnull #include "fns.h"
15 b3994ec5 2003-12-11 devnull Image *tagcols[NCOL];
16 b3994ec5 2003-12-11 devnull Image *textcols[NCOL];
17 c1973705 2004-02-09 devnull static Rune Ldot[] = { '.', 0 };
20 b3994ec5 2003-12-11 devnull TABDIR = 3 /* width of tabs in directory windows */
24 b3994ec5 2003-12-11 devnull textinit(Text *t, File *f, Rectangle r, Reffont *rf, Image *cols[NCOL])
26 b3994ec5 2003-12-11 devnull t->file = f;
27 b3994ec5 2003-12-11 devnull t->all = r;
28 b3994ec5 2003-12-11 devnull t->scrollr = r;
29 b3994ec5 2003-12-11 devnull t->scrollr.max.x = r.min.x+Scrollwid;
30 b3994ec5 2003-12-11 devnull t->lastsr = nullrect;
31 b3994ec5 2003-12-11 devnull r.min.x += Scrollwid+Scrollgap;
32 b3994ec5 2003-12-11 devnull t->eq0 = ~0;
33 b3994ec5 2003-12-11 devnull t->ncache = 0;
34 b3994ec5 2003-12-11 devnull t->reffont = rf;
35 b3994ec5 2003-12-11 devnull t->tabstop = maxtab;
36 b3994ec5 2003-12-11 devnull memmove(t->fr.cols, cols, sizeof t->fr.cols);
37 b3994ec5 2003-12-11 devnull textredraw(t, r, rf->f, screen, -1);
41 b3994ec5 2003-12-11 devnull textredraw(Text *t, Rectangle r, Font *f, Image *b, int odx)
43 b3994ec5 2003-12-11 devnull int maxt;
44 b3994ec5 2003-12-11 devnull Rectangle rr;
46 b3994ec5 2003-12-11 devnull frinit(&t->fr, r, f, b, t->fr.cols);
47 b3994ec5 2003-12-11 devnull rr = t->fr.r;
48 6d7fdb24 2004-12-27 devnull rr.min.x -= Scrollwid+Scrollgap; /* back fill to scroll bar */
49 cb92a1b4 2009-07-15 rsc if(!t->fr.noredraw)
50 cb92a1b4 2009-07-15 rsc draw(t->fr.b, rr, t->fr.cols[BACK], nil, ZP);
51 b3994ec5 2003-12-11 devnull /* use no wider than 3-space tabs in a directory */
52 b3994ec5 2003-12-11 devnull maxt = maxtab;
53 b3994ec5 2003-12-11 devnull if(t->what == Body){
54 b3994ec5 2003-12-11 devnull if(t->w->isdir)
55 b3994ec5 2003-12-11 devnull maxt = min(TABDIR, maxtab);
57 b3994ec5 2003-12-11 devnull maxt = t->tabstop;
59 b3994ec5 2003-12-11 devnull t->fr.maxtab = maxt*stringwidth(f, "0");
60 b3994ec5 2003-12-11 devnull if(t->what==Body && t->w->isdir && odx!=Dx(t->all)){
61 b3994ec5 2003-12-11 devnull if(t->fr.maxlines > 0){
62 b3994ec5 2003-12-11 devnull textreset(t);
63 b3994ec5 2003-12-11 devnull textcolumnate(t, t->w->dlp, t->w->ndl);
64 b3994ec5 2003-12-11 devnull textshow(t, 0, 0, 1);
67 b3994ec5 2003-12-11 devnull textfill(t);
68 b3994ec5 2003-12-11 devnull textsetselect(t, t->q0, t->q1);
73 33dc4226 2005-10-31 devnull textresize(Text *t, Rectangle r, int keepextra)
77 33dc4226 2005-10-31 devnull if(Dy(r) <= 0)
78 b3994ec5 2003-12-11 devnull r.max.y = r.min.y;
79 a2db69c8 2008-03-07 rsc else if(!keepextra)
80 33dc4226 2005-10-31 devnull r.max.y -= Dy(r)%t->fr.font->height;
81 0cd1385d 2008-03-07 rsc odx = Dx(t->all);
82 b3994ec5 2003-12-11 devnull t->all = r;
83 b3994ec5 2003-12-11 devnull t->scrollr = r;
84 b3994ec5 2003-12-11 devnull t->scrollr.max.x = r.min.x+Scrollwid;
85 b3994ec5 2003-12-11 devnull t->lastsr = nullrect;
86 b3994ec5 2003-12-11 devnull r.min.x += Scrollwid+Scrollgap;
87 b3994ec5 2003-12-11 devnull frclear(&t->fr, 0);
88 a2db69c8 2008-03-07 rsc textredraw(t, r, t->fr.font, t->fr.b, odx);
89 cb92a1b4 2009-07-15 rsc if(keepextra && t->fr.r.max.y < t->all.max.y && !t->fr.noredraw){
90 a2db69c8 2008-03-07 rsc /* draw background in bottom fringe of window */
91 33dc4226 2005-10-31 devnull r.min.x -= Scrollgap;
92 33dc4226 2005-10-31 devnull r.min.y = t->fr.r.max.y;
93 33dc4226 2005-10-31 devnull r.max.y = t->all.max.y;
94 33dc4226 2005-10-31 devnull draw(screen, r, t->fr.cols[BACK], nil, ZP);
96 33dc4226 2005-10-31 devnull return t->all.max.y;
100 b3994ec5 2003-12-11 devnull textclose(Text *t)
102 b3994ec5 2003-12-11 devnull free(t->cache);
103 b3994ec5 2003-12-11 devnull frclear(&t->fr, 1);
104 b3994ec5 2003-12-11 devnull filedeltext(t->file, t);
105 b3994ec5 2003-12-11 devnull t->file = nil;
106 b3994ec5 2003-12-11 devnull rfclose(t->reffont);
107 b3994ec5 2003-12-11 devnull if(argtext == t)
108 b3994ec5 2003-12-11 devnull argtext = nil;
109 b3994ec5 2003-12-11 devnull if(typetext == t)
110 b3994ec5 2003-12-11 devnull typetext = nil;
111 b3994ec5 2003-12-11 devnull if(seltext == t)
112 b3994ec5 2003-12-11 devnull seltext = nil;
113 b3994ec5 2003-12-11 devnull if(mousetext == t)
114 b3994ec5 2003-12-11 devnull mousetext = nil;
115 b3994ec5 2003-12-11 devnull if(barttext == t)
116 b3994ec5 2003-12-11 devnull barttext = nil;
120 b3994ec5 2003-12-11 devnull dircmp(const void *a, const void *b)
122 b3994ec5 2003-12-11 devnull Dirlist *da, *db;
123 b3994ec5 2003-12-11 devnull int i, n;
125 b3994ec5 2003-12-11 devnull da = *(Dirlist**)a;
126 b3994ec5 2003-12-11 devnull db = *(Dirlist**)b;
127 b3994ec5 2003-12-11 devnull n = min(da->nr, db->nr);
128 b3994ec5 2003-12-11 devnull i = memcmp(da->r, db->r, n*sizeof(Rune));
130 b3994ec5 2003-12-11 devnull return i;
131 b3994ec5 2003-12-11 devnull return da->nr - db->nr;
135 b3994ec5 2003-12-11 devnull textcolumnate(Text *t, Dirlist **dlp, int ndl)
137 b3994ec5 2003-12-11 devnull int i, j, w, colw, mint, maxt, ncol, nrow;
138 b3994ec5 2003-12-11 devnull Dirlist *dl;
139 b3994ec5 2003-12-11 devnull uint q1;
140 b3994ec5 2003-12-11 devnull static Rune Lnl[] = { '\n', 0 };
141 b3994ec5 2003-12-11 devnull static Rune Ltab[] = { '\t', 0 };
143 b3994ec5 2003-12-11 devnull if(t->file->ntext > 1)
145 b3994ec5 2003-12-11 devnull mint = stringwidth(t->fr.font, "0");
146 b3994ec5 2003-12-11 devnull /* go for narrower tabs if set more than 3 wide */
147 b3994ec5 2003-12-11 devnull t->fr.maxtab = min(maxtab, TABDIR)*mint;
148 b3994ec5 2003-12-11 devnull maxt = t->fr.maxtab;
149 b3994ec5 2003-12-11 devnull colw = 0;
150 b3994ec5 2003-12-11 devnull for(i=0; i<ndl; i++){
151 b3994ec5 2003-12-11 devnull dl = dlp[i];
152 b3994ec5 2003-12-11 devnull w = dl->wid;
153 b3994ec5 2003-12-11 devnull if(maxt-w%maxt < mint || w%maxt==0)
154 b3994ec5 2003-12-11 devnull w += mint;
155 b3994ec5 2003-12-11 devnull if(w % maxt)
156 b3994ec5 2003-12-11 devnull w += maxt-(w%maxt);
157 b3994ec5 2003-12-11 devnull if(w > colw)
158 b3994ec5 2003-12-11 devnull colw = w;
160 b3994ec5 2003-12-11 devnull if(colw == 0)
161 b3994ec5 2003-12-11 devnull ncol = 1;
163 b3994ec5 2003-12-11 devnull ncol = max(1, Dx(t->fr.r)/colw);
164 b3994ec5 2003-12-11 devnull nrow = (ndl+ncol-1)/ncol;
167 b3994ec5 2003-12-11 devnull for(i=0; i<nrow; i++){
168 b3994ec5 2003-12-11 devnull for(j=i; j<ndl; j+=nrow){
169 b3994ec5 2003-12-11 devnull dl = dlp[j];
170 b3994ec5 2003-12-11 devnull fileinsert(t->file, q1, dl->r, dl->nr);
171 b3994ec5 2003-12-11 devnull q1 += dl->nr;
172 b3994ec5 2003-12-11 devnull if(j+nrow >= ndl)
174 b3994ec5 2003-12-11 devnull w = dl->wid;
175 b3994ec5 2003-12-11 devnull if(maxt-w%maxt < mint){
176 b3994ec5 2003-12-11 devnull fileinsert(t->file, q1, Ltab, 1);
178 b3994ec5 2003-12-11 devnull w += mint;
181 b3994ec5 2003-12-11 devnull fileinsert(t->file, q1, Ltab, 1);
183 b3994ec5 2003-12-11 devnull w += maxt-(w%maxt);
184 b3994ec5 2003-12-11 devnull }while(w < colw);
186 b3994ec5 2003-12-11 devnull fileinsert(t->file, q1, Lnl, 1);
192 b3994ec5 2003-12-11 devnull textload(Text *t, uint q0, char *file, int setqid)
194 b3994ec5 2003-12-11 devnull Rune *rp;
195 b3994ec5 2003-12-11 devnull Dirlist *dl, **dlp;
196 b3994ec5 2003-12-11 devnull int fd, i, j, n, ndl, nulls;
197 b3994ec5 2003-12-11 devnull uint q, q1;
198 b3994ec5 2003-12-11 devnull Dir *d, *dbuf;
199 b3994ec5 2003-12-11 devnull char *tmp;
200 b3994ec5 2003-12-11 devnull Text *u;
202 a2db69c8 2008-03-07 rsc if(t->ncache!=0 || t->file->b.nc || t->w==nil || t!=&t->w->body)
203 b3994ec5 2003-12-11 devnull error("text.load");
204 2189e55c 2004-12-27 devnull if(t->w->isdir && t->file->nname==0){
205 6d7fdb24 2004-12-27 devnull warning(nil, "empty directory name");
206 daea2c7d 2009-09-25 russcox return -1;
208 cd5a7378 2008-04-17 rsc if(ismtpt(file)){
209 cd5a7378 2008-04-17 rsc warning(nil, "will not open self mount point %s\n", file);
210 daea2c7d 2009-09-25 russcox return -1;
212 b3994ec5 2003-12-11 devnull fd = open(file, OREAD);
213 b3994ec5 2003-12-11 devnull if(fd < 0){
214 b3994ec5 2003-12-11 devnull warning(nil, "can't open %s: %r\n", file);
215 daea2c7d 2009-09-25 russcox return -1;
217 b3994ec5 2003-12-11 devnull d = dirfstat(fd);
218 b3994ec5 2003-12-11 devnull if(d == nil){
219 b3994ec5 2003-12-11 devnull warning(nil, "can't fstat %s: %r\n", file);
220 b3994ec5 2003-12-11 devnull goto Rescue;
222 b3994ec5 2003-12-11 devnull nulls = FALSE;
223 b3994ec5 2003-12-11 devnull if(d->qid.type & QTDIR){
224 b3994ec5 2003-12-11 devnull /* this is checked in get() but it's possible the file changed underfoot */
225 b3994ec5 2003-12-11 devnull if(t->file->ntext > 1){
226 b3994ec5 2003-12-11 devnull warning(nil, "%s is a directory; can't read with multiple windows on it\n", file);
227 b3994ec5 2003-12-11 devnull goto Rescue;
229 b3994ec5 2003-12-11 devnull t->w->isdir = TRUE;
230 b3994ec5 2003-12-11 devnull t->w->filemenu = FALSE;
231 b3994ec5 2003-12-11 devnull if(t->file->name[t->file->nname-1] != '/'){
232 b3994ec5 2003-12-11 devnull rp = runemalloc(t->file->nname+1);
233 b3994ec5 2003-12-11 devnull runemove(rp, t->file->name, t->file->nname);
234 b3994ec5 2003-12-11 devnull rp[t->file->nname] = '/';
235 b3994ec5 2003-12-11 devnull winsetname(t->w, rp, t->file->nname+1);
236 b3994ec5 2003-12-11 devnull free(rp);
238 b3994ec5 2003-12-11 devnull dlp = nil;
239 b3994ec5 2003-12-11 devnull ndl = 0;
240 b3994ec5 2003-12-11 devnull dbuf = nil;
241 b3994ec5 2003-12-11 devnull while((n=dirread(fd, &dbuf)) > 0){
242 b3994ec5 2003-12-11 devnull for(i=0; i<n; i++){
243 b3994ec5 2003-12-11 devnull dl = emalloc(sizeof(Dirlist));
244 b3994ec5 2003-12-11 devnull j = strlen(dbuf[i].name);
245 b3994ec5 2003-12-11 devnull tmp = emalloc(j+1+1);
246 b3994ec5 2003-12-11 devnull memmove(tmp, dbuf[i].name, j);
247 b3994ec5 2003-12-11 devnull if(dbuf[i].qid.type & QTDIR)
248 b3994ec5 2003-12-11 devnull tmp[j++] = '/';
249 b3994ec5 2003-12-11 devnull tmp[j] = '\0';
250 b3994ec5 2003-12-11 devnull dl->r = bytetorune(tmp, &dl->nr);
251 b3994ec5 2003-12-11 devnull dl->wid = stringwidth(t->fr.font, tmp);
252 b3994ec5 2003-12-11 devnull free(tmp);
254 b3994ec5 2003-12-11 devnull dlp = realloc(dlp, ndl*sizeof(Dirlist*));
255 b3994ec5 2003-12-11 devnull dlp[ndl-1] = dl;
257 b3994ec5 2003-12-11 devnull free(dbuf);
259 b3994ec5 2003-12-11 devnull qsort(dlp, ndl, sizeof(Dirlist*), dircmp);
260 b3994ec5 2003-12-11 devnull t->w->dlp = dlp;
261 b3994ec5 2003-12-11 devnull t->w->ndl = ndl;
262 b3994ec5 2003-12-11 devnull textcolumnate(t, dlp, ndl);
263 b3994ec5 2003-12-11 devnull q1 = t->file->b.nc;
265 b3994ec5 2003-12-11 devnull t->w->isdir = FALSE;
266 b3994ec5 2003-12-11 devnull t->w->filemenu = TRUE;
267 b3994ec5 2003-12-11 devnull q1 = q0 + fileload(t->file, q0, fd, &nulls);
269 b3994ec5 2003-12-11 devnull if(setqid){
270 b3994ec5 2003-12-11 devnull t->file->dev = d->dev;
271 b3994ec5 2003-12-11 devnull t->file->mtime = d->mtime;
272 b3994ec5 2003-12-11 devnull t->file->qidpath = d->qid.path;
274 b3994ec5 2003-12-11 devnull close(fd);
275 b3994ec5 2003-12-11 devnull rp = fbufalloc();
276 b3994ec5 2003-12-11 devnull for(q=q0; q<q1; q+=n){
277 b3994ec5 2003-12-11 devnull n = q1-q;
278 b3994ec5 2003-12-11 devnull if(n > RBUFSIZE)
279 b3994ec5 2003-12-11 devnull n = RBUFSIZE;
280 b3994ec5 2003-12-11 devnull bufread(&t->file->b, q, rp, n);
281 b3994ec5 2003-12-11 devnull if(q < t->org)
282 b3994ec5 2003-12-11 devnull t->org += n;
283 b3994ec5 2003-12-11 devnull else if(q <= t->org+t->fr.nchars)
284 b3994ec5 2003-12-11 devnull frinsert(&t->fr, rp, rp+n, q-t->org);
285 b3994ec5 2003-12-11 devnull if(t->fr.lastlinefull)
288 b3994ec5 2003-12-11 devnull fbuffree(rp);
289 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++){
290 b3994ec5 2003-12-11 devnull u = t->file->text[i];
291 b3994ec5 2003-12-11 devnull if(u != t){
292 b3994ec5 2003-12-11 devnull if(u->org > u->file->b.nc) /* will be 0 because of reset(), but safety first */
293 b3994ec5 2003-12-11 devnull u->org = 0;
294 33dc4226 2005-10-31 devnull textresize(u, u->all, TRUE);
295 b3994ec5 2003-12-11 devnull textbacknl(u, u->org, 0); /* go to beginning of line */
297 b3994ec5 2003-12-11 devnull textsetselect(u, q0, q0);
299 b3994ec5 2003-12-11 devnull if(nulls)
300 b3994ec5 2003-12-11 devnull warning(nil, "%s: NUL bytes elided\n", file);
301 b3994ec5 2003-12-11 devnull free(d);
302 b3994ec5 2003-12-11 devnull return q1-q0;
305 b3994ec5 2003-12-11 devnull close(fd);
306 daea2c7d 2009-09-25 russcox return -1;
310 b3994ec5 2003-12-11 devnull textbsinsert(Text *t, uint q0, Rune *r, uint n, int tofile, int *nrp)
312 b3994ec5 2003-12-11 devnull Rune *bp, *tp, *up;
313 b3994ec5 2003-12-11 devnull int i, initial;
315 b3994ec5 2003-12-11 devnull if(t->what == Tag){ /* can't happen but safety first: mustn't backspace over file name */
317 b3994ec5 2003-12-11 devnull textinsert(t, q0, r, n, tofile);
318 b3994ec5 2003-12-11 devnull *nrp = n;
319 b3994ec5 2003-12-11 devnull return q0;
322 b3994ec5 2003-12-11 devnull for(i=0; i<n; i++)
323 b3994ec5 2003-12-11 devnull if(*bp++ == '\b'){
325 b3994ec5 2003-12-11 devnull initial = 0;
326 b3994ec5 2003-12-11 devnull tp = runemalloc(n);
327 b3994ec5 2003-12-11 devnull runemove(tp, r, i);
328 b3994ec5 2003-12-11 devnull up = tp+i;
329 b3994ec5 2003-12-11 devnull for(; i<n; i++){
330 b3994ec5 2003-12-11 devnull *up = *bp++;
331 b3994ec5 2003-12-11 devnull if(*up == '\b')
332 b3994ec5 2003-12-11 devnull if(up == tp)
333 b3994ec5 2003-12-11 devnull initial++;
339 b3994ec5 2003-12-11 devnull if(initial){
340 b3994ec5 2003-12-11 devnull if(initial > q0)
341 b3994ec5 2003-12-11 devnull initial = q0;
342 b3994ec5 2003-12-11 devnull q0 -= initial;
343 b3994ec5 2003-12-11 devnull textdelete(t, q0, q0+initial, tofile);
345 b3994ec5 2003-12-11 devnull n = up-tp;
346 b3994ec5 2003-12-11 devnull textinsert(t, q0, tp, n, tofile);
347 b3994ec5 2003-12-11 devnull free(tp);
348 b3994ec5 2003-12-11 devnull *nrp = n;
349 b3994ec5 2003-12-11 devnull return q0;
351 b3994ec5 2003-12-11 devnull goto Err;
355 b3994ec5 2003-12-11 devnull textinsert(Text *t, uint q0, Rune *r, uint n, int tofile)
357 b3994ec5 2003-12-11 devnull int c, i;
358 b3994ec5 2003-12-11 devnull Text *u;
360 b3994ec5 2003-12-11 devnull if(tofile && t->ncache != 0)
361 b3994ec5 2003-12-11 devnull error("text.insert");
362 b3994ec5 2003-12-11 devnull if(n == 0)
364 b3994ec5 2003-12-11 devnull if(tofile){
365 b3994ec5 2003-12-11 devnull fileinsert(t->file, q0, r, n);
366 b3994ec5 2003-12-11 devnull if(t->what == Body){
367 b3994ec5 2003-12-11 devnull t->w->dirty = TRUE;
368 b3994ec5 2003-12-11 devnull t->w->utflastqid = -1;
370 b3994ec5 2003-12-11 devnull if(t->file->ntext > 1)
371 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++){
372 b3994ec5 2003-12-11 devnull u = t->file->text[i];
373 b3994ec5 2003-12-11 devnull if(u != t){
374 b3994ec5 2003-12-11 devnull u->w->dirty = TRUE; /* always a body */
375 b3994ec5 2003-12-11 devnull textinsert(u, q0, r, n, FALSE);
376 b3994ec5 2003-12-11 devnull textsetselect(u, u->q0, u->q1);
377 b3994ec5 2003-12-11 devnull textscrdraw(u);
382 b3994ec5 2003-12-11 devnull if(q0 < t->q1)
383 b3994ec5 2003-12-11 devnull t->q1 += n;
384 b3994ec5 2003-12-11 devnull if(q0 < t->q0)
385 b3994ec5 2003-12-11 devnull t->q0 += n;
386 b3994ec5 2003-12-11 devnull if(q0 < t->org)
387 b3994ec5 2003-12-11 devnull t->org += n;
388 b3994ec5 2003-12-11 devnull else if(q0 <= t->org+t->fr.nchars)
389 b3994ec5 2003-12-11 devnull frinsert(&t->fr, r, r+n, q0-t->org);
390 b3994ec5 2003-12-11 devnull if(t->w){
391 b3994ec5 2003-12-11 devnull c = 'i';
392 b3994ec5 2003-12-11 devnull if(t->what == Body)
393 b3994ec5 2003-12-11 devnull c = 'I';
394 b3994ec5 2003-12-11 devnull if(n <= EVENTSIZE)
395 b3994ec5 2003-12-11 devnull winevent(t->w, "%c%d %d 0 %d %.*S\n", c, q0, q0+n, n, n, r);
397 b3994ec5 2003-12-11 devnull winevent(t->w, "%c%d %d 0 0 \n", c, q0, q0+n, n);
402 2a373ea4 2005-03-18 devnull typecommit(Text *t)
404 2a373ea4 2005-03-18 devnull if(t->w != nil)
405 2a373ea4 2005-03-18 devnull wincommit(t->w, t);
407 2a373ea4 2005-03-18 devnull textcommit(t, TRUE);
411 b3994ec5 2003-12-11 devnull textfill(Text *t)
413 b3994ec5 2003-12-11 devnull Rune *rp;
414 b3994ec5 2003-12-11 devnull int i, n, m, nl;
416 b3994ec5 2003-12-11 devnull if(t->fr.lastlinefull || t->nofill)
418 2a373ea4 2005-03-18 devnull if(t->ncache > 0)
419 2a373ea4 2005-03-18 devnull typecommit(t);
420 b3994ec5 2003-12-11 devnull rp = fbufalloc();
422 b3994ec5 2003-12-11 devnull n = t->file->b.nc-(t->org+t->fr.nchars);
423 b3994ec5 2003-12-11 devnull if(n == 0)
425 b3994ec5 2003-12-11 devnull if(n > 2000) /* educated guess at reasonable amount */
426 b3994ec5 2003-12-11 devnull n = 2000;
427 b3994ec5 2003-12-11 devnull bufread(&t->file->b, t->org+t->fr.nchars, rp, n);
429 b3994ec5 2003-12-11 devnull * it's expensive to frinsert more than we need, so
430 b3994ec5 2003-12-11 devnull * count newlines.
432 b3994ec5 2003-12-11 devnull nl = t->fr.maxlines-t->fr.nlines;
434 b3994ec5 2003-12-11 devnull for(i=0; i<n; ){
435 b3994ec5 2003-12-11 devnull if(rp[i++] == '\n'){
437 b3994ec5 2003-12-11 devnull if(m >= nl)
441 b3994ec5 2003-12-11 devnull frinsert(&t->fr, rp, rp+i, t->fr.nchars);
442 b3994ec5 2003-12-11 devnull }while(t->fr.lastlinefull == FALSE);
443 b3994ec5 2003-12-11 devnull fbuffree(rp);
447 b3994ec5 2003-12-11 devnull textdelete(Text *t, uint q0, uint q1, int tofile)
449 b3994ec5 2003-12-11 devnull uint n, p0, p1;
450 b3994ec5 2003-12-11 devnull int i, c;
451 b3994ec5 2003-12-11 devnull Text *u;
453 b3994ec5 2003-12-11 devnull if(tofile && t->ncache != 0)
454 b3994ec5 2003-12-11 devnull error("text.delete");
455 b3994ec5 2003-12-11 devnull n = q1-q0;
456 b3994ec5 2003-12-11 devnull if(n == 0)
458 b3994ec5 2003-12-11 devnull if(tofile){
459 b3994ec5 2003-12-11 devnull filedelete(t->file, q0, q1);
460 b3994ec5 2003-12-11 devnull if(t->what == Body){
461 b3994ec5 2003-12-11 devnull t->w->dirty = TRUE;
462 b3994ec5 2003-12-11 devnull t->w->utflastqid = -1;
464 b3994ec5 2003-12-11 devnull if(t->file->ntext > 1)
465 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++){
466 b3994ec5 2003-12-11 devnull u = t->file->text[i];
467 b3994ec5 2003-12-11 devnull if(u != t){
468 b3994ec5 2003-12-11 devnull u->w->dirty = TRUE; /* always a body */
469 b3994ec5 2003-12-11 devnull textdelete(u, q0, q1, FALSE);
470 b3994ec5 2003-12-11 devnull textsetselect(u, u->q0, u->q1);
471 b3994ec5 2003-12-11 devnull textscrdraw(u);
475 b3994ec5 2003-12-11 devnull if(q0 < t->q0)
476 b3994ec5 2003-12-11 devnull t->q0 -= min(n, t->q0-q0);
477 b3994ec5 2003-12-11 devnull if(q0 < t->q1)
478 b3994ec5 2003-12-11 devnull t->q1 -= min(n, t->q1-q0);
479 b3994ec5 2003-12-11 devnull if(q1 <= t->org)
480 b3994ec5 2003-12-11 devnull t->org -= n;
481 b3994ec5 2003-12-11 devnull else if(q0 < t->org+t->fr.nchars){
482 b3994ec5 2003-12-11 devnull p1 = q1 - t->org;
483 b3994ec5 2003-12-11 devnull if(p1 > t->fr.nchars)
484 b3994ec5 2003-12-11 devnull p1 = t->fr.nchars;
485 b3994ec5 2003-12-11 devnull if(q0 < t->org){
486 b3994ec5 2003-12-11 devnull t->org = q0;
489 b3994ec5 2003-12-11 devnull p0 = q0 - t->org;
490 b3994ec5 2003-12-11 devnull frdelete(&t->fr, p0, p1);
491 b3994ec5 2003-12-11 devnull textfill(t);
493 b3994ec5 2003-12-11 devnull if(t->w){
494 b3994ec5 2003-12-11 devnull c = 'd';
495 b3994ec5 2003-12-11 devnull if(t->what == Body)
496 b3994ec5 2003-12-11 devnull c = 'D';
497 b3994ec5 2003-12-11 devnull winevent(t->w, "%c%d %d 0 0 \n", c, q0, q1);
502 b3994ec5 2003-12-11 devnull textconstrain(Text *t, uint q0, uint q1, uint *p0, uint *p1)
504 b3994ec5 2003-12-11 devnull *p0 = min(q0, t->file->b.nc);
505 b3994ec5 2003-12-11 devnull *p1 = min(q1, t->file->b.nc);
509 b3994ec5 2003-12-11 devnull textreadc(Text *t, uint q)
513 b3994ec5 2003-12-11 devnull if(t->cq0<=q && q<t->cq0+t->ncache)
514 b3994ec5 2003-12-11 devnull r = t->cache[q-t->cq0];
516 b3994ec5 2003-12-11 devnull bufread(&t->file->b, q, &r, 1);
517 b3994ec5 2003-12-11 devnull return r;
521 b3994ec5 2003-12-11 devnull textbswidth(Text *t, Rune c)
523 b3994ec5 2003-12-11 devnull uint q, eq;
525 b3994ec5 2003-12-11 devnull int skipping;
527 b3994ec5 2003-12-11 devnull /* there is known to be at least one character to erase */
528 b3994ec5 2003-12-11 devnull if(c == 0x08) /* ^H: erase character */
529 b3994ec5 2003-12-11 devnull return 1;
530 b3994ec5 2003-12-11 devnull q = t->q0;
531 b3994ec5 2003-12-11 devnull skipping = TRUE;
532 b3994ec5 2003-12-11 devnull while(q > 0){
533 b3994ec5 2003-12-11 devnull r = textreadc(t, q-1);
534 b3994ec5 2003-12-11 devnull if(r == '\n'){ /* eat at most one more character */
535 b3994ec5 2003-12-11 devnull if(q == t->q0) /* eat the newline */
539 b3994ec5 2003-12-11 devnull if(c == 0x17){
540 b3994ec5 2003-12-11 devnull eq = isalnum(r);
541 b3994ec5 2003-12-11 devnull if(eq && skipping) /* found one; stop skipping */
542 b3994ec5 2003-12-11 devnull skipping = FALSE;
543 b3994ec5 2003-12-11 devnull else if(!eq && !skipping)
548 b3994ec5 2003-12-11 devnull return t->q0-q;
552 c1973705 2004-02-09 devnull textfilewidth(Text *t, uint q0, int oneelement)
558 c1973705 2004-02-09 devnull while(q > 0){
559 c1973705 2004-02-09 devnull r = textreadc(t, q-1);
560 5a8e63b2 2004-02-29 devnull if(r <= ' ')
562 c1973705 2004-02-09 devnull if(oneelement && r=='/')
566 c1973705 2004-02-09 devnull return q0-q;
570 c1973705 2004-02-09 devnull textcomplete(Text *t)
572 c1973705 2004-02-09 devnull int i, nstr, npath;
574 c1973705 2004-02-09 devnull Rune tmp[200];
575 c1973705 2004-02-09 devnull Rune *str, *path;
576 c1973705 2004-02-09 devnull Rune *rp;
577 c1973705 2004-02-09 devnull Completion *c;
578 c1973705 2004-02-09 devnull char *s, *dirs;
579 c1973705 2004-02-09 devnull Runestr dir;
581 c1973705 2004-02-09 devnull /* control-f: filename completion; works back to white space or / */
582 c1973705 2004-02-09 devnull if(t->q0<t->file->b.nc && textreadc(t, t->q0)>' ') /* must be at end of word */
583 c1973705 2004-02-09 devnull return nil;
584 c1973705 2004-02-09 devnull nstr = textfilewidth(t, t->q0, TRUE);
585 c1973705 2004-02-09 devnull str = runemalloc(nstr);
586 c1973705 2004-02-09 devnull npath = textfilewidth(t, t->q0-nstr, FALSE);
587 c1973705 2004-02-09 devnull path = runemalloc(npath);
589 c1973705 2004-02-09 devnull c = nil;
590 c1973705 2004-02-09 devnull rp = nil;
591 c1973705 2004-02-09 devnull dirs = nil;
593 c1973705 2004-02-09 devnull q = t->q0-nstr;
594 c1973705 2004-02-09 devnull for(i=0; i<nstr; i++)
595 c1973705 2004-02-09 devnull str[i] = textreadc(t, q++);
596 c1973705 2004-02-09 devnull q = t->q0-nstr-npath;
597 c1973705 2004-02-09 devnull for(i=0; i<npath; i++)
598 c1973705 2004-02-09 devnull path[i] = textreadc(t, q++);
599 c1973705 2004-02-09 devnull /* is path rooted? if not, we need to make it relative to window path */
600 c1973705 2004-02-09 devnull if(npath>0 && path[0]=='/')
601 8ad51794 2004-03-25 devnull dir = runestr(path, npath);
603 c1973705 2004-02-09 devnull dir = dirname(t, nil, 0);
604 c1973705 2004-02-09 devnull if(dir.nr + 1 + npath > nelem(tmp)){
605 c1973705 2004-02-09 devnull free(dir.r);
606 c1973705 2004-02-09 devnull goto Return;
608 c1973705 2004-02-09 devnull if(dir.nr == 0){
609 c1973705 2004-02-09 devnull dir.nr = 1;
610 c1973705 2004-02-09 devnull dir.r = runestrdup(Ldot);
612 c1973705 2004-02-09 devnull runemove(tmp, dir.r, dir.nr);
613 c1973705 2004-02-09 devnull tmp[dir.nr] = '/';
614 c1973705 2004-02-09 devnull runemove(tmp+dir.nr+1, path, npath);
615 c1973705 2004-02-09 devnull free(dir.r);
616 c1973705 2004-02-09 devnull dir.r = tmp;
617 c1973705 2004-02-09 devnull dir.nr += 1+npath;
618 c1973705 2004-02-09 devnull dir = cleanrname(dir);
621 c1973705 2004-02-09 devnull s = smprint("%.*S", nstr, str);
622 c1973705 2004-02-09 devnull dirs = smprint("%.*S", dir.nr, dir.r);
623 c1973705 2004-02-09 devnull c = complete(dirs, s);
624 c1973705 2004-02-09 devnull free(s);
625 c1973705 2004-02-09 devnull if(c == nil){
626 c1973705 2004-02-09 devnull warning(nil, "error attempting completion: %r\n");
627 c1973705 2004-02-09 devnull goto Return;
630 c1973705 2004-02-09 devnull if(!c->advance){
631 5a8e63b2 2004-02-29 devnull warning(nil, "%.*S%s%.*S*%s\n",
632 c1973705 2004-02-09 devnull dir.nr, dir.r,
633 c1973705 2004-02-09 devnull dir.nr>0 && dir.r[dir.nr-1]!='/' ? "/" : "",
634 5a8e63b2 2004-02-29 devnull nstr, str,
635 5a8e63b2 2004-02-29 devnull c->nmatch ? "" : ": no matches in:");
636 c1973705 2004-02-09 devnull for(i=0; i<c->nfile; i++)
637 c1973705 2004-02-09 devnull warning(nil, " %s\n", c->filename[i]);
640 c1973705 2004-02-09 devnull if(c->advance)
641 c1973705 2004-02-09 devnull rp = runesmprint("%s", c->string);
643 c1973705 2004-02-09 devnull rp = nil;
645 c1973705 2004-02-09 devnull freecompletion(c);
646 c1973705 2004-02-09 devnull free(dirs);
647 c1973705 2004-02-09 devnull free(str);
648 c1973705 2004-02-09 devnull free(path);
649 c1973705 2004-02-09 devnull return rp;
653 b3994ec5 2003-12-11 devnull texttype(Text *t, Rune r)
655 b3994ec5 2003-12-11 devnull uint q0, q1;
656 b3994ec5 2003-12-11 devnull int nnb, nb, n, i;
658 c1973705 2004-02-09 devnull Rune *rp;
659 b3994ec5 2003-12-11 devnull Text *u;
661 f8dea3c1 2005-12-16 devnull if(t->what!=Body && t->what!=Tag && r=='\n')
663 f8dea3c1 2005-12-16 devnull if(t->what == Tag)
664 f8dea3c1 2005-12-16 devnull t->w->tagsafe = FALSE;
667 c1973705 2004-02-09 devnull rp = &r;
668 b3994ec5 2003-12-11 devnull switch(r){
669 b3994ec5 2003-12-11 devnull case Kleft:
670 5a8e63b2 2004-02-29 devnull if(t->q0 > 0){
671 2a373ea4 2005-03-18 devnull typecommit(t);
672 c1973705 2004-02-09 devnull textshow(t, t->q0-1, t->q0-1, TRUE);
675 b3994ec5 2003-12-11 devnull case Kright:
676 5a8e63b2 2004-02-29 devnull if(t->q1 < t->file->b.nc){
677 2a373ea4 2005-03-18 devnull typecommit(t);
678 c1973705 2004-02-09 devnull textshow(t, t->q1+1, t->q1+1, TRUE);
681 c1973705 2004-02-09 devnull case Kdown:
682 f8dea3c1 2005-12-16 devnull if(t->what == Tag)
683 f8dea3c1 2005-12-16 devnull goto Tagdown;
684 5a8e63b2 2004-02-29 devnull n = t->fr.maxlines/3;
685 c16f1f73 2004-06-09 devnull goto case_Down;
686 c16f1f73 2004-06-09 devnull case Kscrollonedown:
687 f8dea3c1 2005-12-16 devnull if(t->what == Tag)
688 f8dea3c1 2005-12-16 devnull goto Tagdown;
689 64055489 2004-06-20 devnull n = mousescrollsize(t->fr.maxlines);
690 038aa022 2004-06-11 devnull if(n <= 0)
692 5a8e63b2 2004-02-29 devnull goto case_Down;
693 c1973705 2004-02-09 devnull case Kpgdown:
694 5a8e63b2 2004-02-29 devnull n = 2*t->fr.maxlines/3;
695 5a8e63b2 2004-02-29 devnull case_Down:
696 b3994ec5 2003-12-11 devnull q0 = t->org+frcharofpt(&t->fr, Pt(t->fr.r.min.x, t->fr.r.min.y+n*t->fr.font->height));
697 64055489 2004-06-20 devnull textsetorigin(t, q0, TRUE);
699 b3994ec5 2003-12-11 devnull case Kup:
700 f8dea3c1 2005-12-16 devnull if(t->what == Tag)
701 f8dea3c1 2005-12-16 devnull goto Tagup;
702 5a8e63b2 2004-02-29 devnull n = t->fr.maxlines/3;
703 5a8e63b2 2004-02-29 devnull goto case_Up;
704 c16f1f73 2004-06-09 devnull case Kscrolloneup:
705 f8dea3c1 2005-12-16 devnull if(t->what == Tag)
706 f8dea3c1 2005-12-16 devnull goto Tagup;
707 64055489 2004-06-20 devnull n = mousescrollsize(t->fr.maxlines);
708 c16f1f73 2004-06-09 devnull goto case_Up;
709 c1973705 2004-02-09 devnull case Kpgup:
710 5a8e63b2 2004-02-29 devnull n = 2*t->fr.maxlines/3;
711 5a8e63b2 2004-02-29 devnull case_Up:
712 b3994ec5 2003-12-11 devnull q0 = textbacknl(t, t->org, n);
713 64055489 2004-06-20 devnull textsetorigin(t, q0, TRUE);
715 5a8e63b2 2004-02-29 devnull case Khome:
716 2a373ea4 2005-03-18 devnull typecommit(t);
717 5a8e63b2 2004-02-29 devnull textshow(t, 0, 0, FALSE);
719 5a8e63b2 2004-02-29 devnull case Kend:
720 2a373ea4 2005-03-18 devnull typecommit(t);
721 5a8e63b2 2004-02-29 devnull textshow(t, t->file->b.nc, t->file->b.nc, FALSE);
723 2a373ea4 2005-03-18 devnull case 0x01: /* ^A: beginning of line */
724 2a373ea4 2005-03-18 devnull typecommit(t);
725 2a373ea4 2005-03-18 devnull /* go to where ^U would erase, if not already at BOL */
726 2a373ea4 2005-03-18 devnull nnb = 0;
727 2a373ea4 2005-03-18 devnull if(t->q0>0 && textreadc(t, t->q0-1)!='\n')
728 2a373ea4 2005-03-18 devnull nnb = textbswidth(t, 0x15);
729 2a373ea4 2005-03-18 devnull textshow(t, t->q0-nnb, t->q0-nnb, TRUE);
731 2a373ea4 2005-03-18 devnull case 0x05: /* ^E: end of line */
732 2a373ea4 2005-03-18 devnull typecommit(t);
733 2a373ea4 2005-03-18 devnull q0 = t->q0;
734 2a373ea4 2005-03-18 devnull while(q0<t->file->b.nc && textreadc(t, q0)!='\n')
736 2a373ea4 2005-03-18 devnull textshow(t, q0, q0, TRUE);
738 4aad1a32 2009-04-30 rsc case Kcmd+'c': /* %C: copy */
739 4aad1a32 2009-04-30 rsc typecommit(t);
740 4aad1a32 2009-04-30 rsc cut(t, t, nil, TRUE, FALSE, nil, 0);
743 f8dea3c1 2005-12-16 devnull Tagdown:
744 f8dea3c1 2005-12-16 devnull /* expand tag to show all text */
745 f8dea3c1 2005-12-16 devnull if(!t->w->tagexpand){
746 f8dea3c1 2005-12-16 devnull t->w->tagexpand = TRUE;
747 f8dea3c1 2005-12-16 devnull winresize(t->w, t->w->r, FALSE, TRUE);
752 f8dea3c1 2005-12-16 devnull /* shrink tag to single line */
753 f8dea3c1 2005-12-16 devnull if(t->w->tagexpand){
754 f8dea3c1 2005-12-16 devnull t->w->tagexpand = FALSE;
755 f8dea3c1 2005-12-16 devnull t->w->taglines = 1;
756 f8dea3c1 2005-12-16 devnull winresize(t->w, t->w->r, FALSE, TRUE);
760 b3994ec5 2003-12-11 devnull if(t->what == Body){
762 b3994ec5 2003-12-11 devnull filemark(t->file);
764 4aad1a32 2009-04-30 rsc /* cut/paste must be done after the seq++/filemark */
766 4aad1a32 2009-04-30 rsc case Kcmd+'x': /* %X: cut */
767 4aad1a32 2009-04-30 rsc typecommit(t);
768 4aad1a32 2009-04-30 rsc if(t->what == Body){
770 4aad1a32 2009-04-30 rsc filemark(t->file);
772 4aad1a32 2009-04-30 rsc cut(t, t, nil, TRUE, TRUE, nil, 0);
773 4aad1a32 2009-04-30 rsc textshow(t, t->q0, t->q0, 1);
775 4aad1a32 2009-04-30 rsc case Kcmd+'v': /* %V: paste */
776 4aad1a32 2009-04-30 rsc typecommit(t);
777 4aad1a32 2009-04-30 rsc if(t->what == Body){
779 4aad1a32 2009-04-30 rsc filemark(t->file);
781 4aad1a32 2009-04-30 rsc paste(t, t, nil, TRUE, FALSE, nil, 0);
782 4aad1a32 2009-04-30 rsc textshow(t, t->q0, t->q1, 1);
785 b3994ec5 2003-12-11 devnull if(t->q1 > t->q0){
786 b3994ec5 2003-12-11 devnull if(t->ncache != 0)
787 b3994ec5 2003-12-11 devnull error("text.type");
788 b3994ec5 2003-12-11 devnull cut(t, t, nil, TRUE, TRUE, nil, 0);
789 b3994ec5 2003-12-11 devnull t->eq0 = ~0;
791 b3994ec5 2003-12-11 devnull textshow(t, t->q0, t->q0, 1);
792 b3994ec5 2003-12-11 devnull switch(r){
793 c1973705 2004-02-09 devnull case 0x06: /* ^F: complete */
794 c1973705 2004-02-09 devnull case Kins:
795 c1973705 2004-02-09 devnull rp = textcomplete(t);
796 c1973705 2004-02-09 devnull if(rp == nil)
798 c1973705 2004-02-09 devnull nr = runestrlen(rp);
799 c1973705 2004-02-09 devnull break; /* fall through to normal insertion case */
800 b3994ec5 2003-12-11 devnull case 0x1B:
801 b3994ec5 2003-12-11 devnull if(t->eq0 != ~0)
802 b3994ec5 2003-12-11 devnull textsetselect(t, t->eq0, t->q0);
803 5544aaf9 2005-03-18 devnull if(t->ncache > 0)
804 5544aaf9 2005-03-18 devnull typecommit(t);
806 b3994ec5 2003-12-11 devnull case 0x08: /* ^H: erase character */
807 b3994ec5 2003-12-11 devnull case 0x15: /* ^U: erase line */
808 b3994ec5 2003-12-11 devnull case 0x17: /* ^W: erase word */
809 b3994ec5 2003-12-11 devnull if(t->q0 == 0) /* nothing to erase */
811 b3994ec5 2003-12-11 devnull nnb = textbswidth(t, r);
812 b3994ec5 2003-12-11 devnull q1 = t->q0;
813 b3994ec5 2003-12-11 devnull q0 = q1-nnb;
814 b3994ec5 2003-12-11 devnull /* if selection is at beginning of window, avoid deleting invisible text */
815 b3994ec5 2003-12-11 devnull if(q0 < t->org){
816 b3994ec5 2003-12-11 devnull q0 = t->org;
817 b3994ec5 2003-12-11 devnull nnb = q1-q0;
819 b3994ec5 2003-12-11 devnull if(nnb <= 0)
821 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++){
822 b3994ec5 2003-12-11 devnull u = t->file->text[i];
823 b3994ec5 2003-12-11 devnull u->nofill = TRUE;
824 b3994ec5 2003-12-11 devnull nb = nnb;
825 b3994ec5 2003-12-11 devnull n = u->ncache;
826 b3994ec5 2003-12-11 devnull if(n > 0){
827 b3994ec5 2003-12-11 devnull if(q1 != u->cq0+n)
828 b3994ec5 2003-12-11 devnull error("text.type backspace");
829 b3994ec5 2003-12-11 devnull if(n > nb)
831 b3994ec5 2003-12-11 devnull u->ncache -= n;
832 b3994ec5 2003-12-11 devnull textdelete(u, q1-n, q1, FALSE);
833 b3994ec5 2003-12-11 devnull nb -= n;
835 b3994ec5 2003-12-11 devnull if(u->eq0==q1 || u->eq0==~0)
836 b3994ec5 2003-12-11 devnull u->eq0 = q0;
837 b3994ec5 2003-12-11 devnull if(nb && u==t)
838 b3994ec5 2003-12-11 devnull textdelete(u, q0, q0+nb, TRUE);
839 b3994ec5 2003-12-11 devnull if(u != t)
840 b3994ec5 2003-12-11 devnull textsetselect(u, u->q0, u->q1);
842 b3994ec5 2003-12-11 devnull textsetselect(t, q0, q0);
843 b3994ec5 2003-12-11 devnull u->nofill = FALSE;
845 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++)
846 b3994ec5 2003-12-11 devnull textfill(t->file->text[i]);
848 5a8e63b2 2004-02-29 devnull case '\n':
849 5a8e63b2 2004-02-29 devnull if(t->w->autoindent){
850 5a8e63b2 2004-02-29 devnull /* find beginning of previous line using backspace code */
851 5a8e63b2 2004-02-29 devnull nnb = textbswidth(t, 0x15); /* ^U case */
852 5a8e63b2 2004-02-29 devnull rp = runemalloc(nnb + 1);
854 5a8e63b2 2004-02-29 devnull rp[nr++] = r;
855 5a8e63b2 2004-02-29 devnull for(i=0; i<nnb; i++){
856 5a8e63b2 2004-02-29 devnull r = textreadc(t, t->q0-nnb+i);
857 5a8e63b2 2004-02-29 devnull if(r != ' ' && r != '\t')
859 5a8e63b2 2004-02-29 devnull rp[nr++] = r;
862 5a8e63b2 2004-02-29 devnull break; /* fall through to normal code */
864 b3994ec5 2003-12-11 devnull /* otherwise ordinary character; just insert, typically in caches of all texts */
865 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++){
866 b3994ec5 2003-12-11 devnull u = t->file->text[i];
867 b3994ec5 2003-12-11 devnull if(u->eq0 == ~0)
868 b3994ec5 2003-12-11 devnull u->eq0 = t->q0;
869 b3994ec5 2003-12-11 devnull if(u->ncache == 0)
870 b3994ec5 2003-12-11 devnull u->cq0 = t->q0;
871 b3994ec5 2003-12-11 devnull else if(t->q0 != u->cq0+u->ncache)
872 b3994ec5 2003-12-11 devnull error("text.type cq1");
874 cd1d0ab0 2006-01-12 devnull * Change the tag before we add to ncache,
875 cd1d0ab0 2006-01-12 devnull * so that if the window body is resized the
876 cd1d0ab0 2006-01-12 devnull * commit will not find anything in ncache.
878 cd1d0ab0 2006-01-12 devnull if(u->what==Body && u->ncache == 0){
879 cd1d0ab0 2006-01-12 devnull u->needundo = TRUE;
880 cd1d0ab0 2006-01-12 devnull winsettag(t->w);
881 cd1d0ab0 2006-01-12 devnull u->needundo = FALSE;
883 c1973705 2004-02-09 devnull textinsert(u, t->q0, rp, nr, FALSE);
884 b3994ec5 2003-12-11 devnull if(u != t)
885 b3994ec5 2003-12-11 devnull textsetselect(u, u->q0, u->q1);
886 c1973705 2004-02-09 devnull if(u->ncache+nr > u->ncachealloc){
887 c1973705 2004-02-09 devnull u->ncachealloc += 10 + nr;
888 b3994ec5 2003-12-11 devnull u->cache = runerealloc(u->cache, u->ncachealloc);
890 c1973705 2004-02-09 devnull runemove(u->cache+u->ncache, rp, nr);
891 c1973705 2004-02-09 devnull u->ncache += nr;
893 c1973705 2004-02-09 devnull if(rp != &r)
894 c1973705 2004-02-09 devnull free(rp);
895 c1973705 2004-02-09 devnull textsetselect(t, t->q0+nr, t->q0+nr);
896 b3994ec5 2003-12-11 devnull if(r=='\n' && t->w!=nil)
897 b3994ec5 2003-12-11 devnull wincommit(t->w, t);
901 b3994ec5 2003-12-11 devnull textcommit(Text *t, int tofile)
903 b3994ec5 2003-12-11 devnull if(t->ncache == 0)
905 b3994ec5 2003-12-11 devnull if(tofile)
906 b3994ec5 2003-12-11 devnull fileinsert(t->file, t->cq0, t->cache, t->ncache);
907 b3994ec5 2003-12-11 devnull if(t->what == Body){
908 b3994ec5 2003-12-11 devnull t->w->dirty = TRUE;
909 b3994ec5 2003-12-11 devnull t->w->utflastqid = -1;
911 b3994ec5 2003-12-11 devnull t->ncache = 0;
914 b3994ec5 2003-12-11 devnull static Text *clicktext;
915 b3994ec5 2003-12-11 devnull static uint clickmsec;
916 b3994ec5 2003-12-11 devnull static Text *selecttext;
917 b3994ec5 2003-12-11 devnull static uint selectq;
920 b3994ec5 2003-12-11 devnull * called from frame library
923 b3994ec5 2003-12-11 devnull framescroll(Frame *f, int dl)
925 b3994ec5 2003-12-11 devnull if(f != &selecttext->fr)
926 b3994ec5 2003-12-11 devnull error("frameselect not right frame");
927 b3994ec5 2003-12-11 devnull textframescroll(selecttext, dl);
931 b3994ec5 2003-12-11 devnull textframescroll(Text *t, int dl)
933 b3994ec5 2003-12-11 devnull uint q0;
935 b3994ec5 2003-12-11 devnull if(dl == 0){
936 b3994ec5 2003-12-11 devnull scrsleep(100);
939 b3994ec5 2003-12-11 devnull if(dl < 0){
940 b3994ec5 2003-12-11 devnull q0 = textbacknl(t, t->org, -dl);
941 b3994ec5 2003-12-11 devnull if(selectq > t->org+t->fr.p0)
942 b3994ec5 2003-12-11 devnull textsetselect(t, t->org+t->fr.p0, selectq);
944 b3994ec5 2003-12-11 devnull textsetselect(t, selectq, t->org+t->fr.p0);
946 b3994ec5 2003-12-11 devnull if(t->org+t->fr.nchars == t->file->b.nc)
948 b3994ec5 2003-12-11 devnull q0 = t->org+frcharofpt(&t->fr, Pt(t->fr.r.min.x, t->fr.r.min.y+dl*t->fr.font->height));
949 b3994ec5 2003-12-11 devnull if(selectq > t->org+t->fr.p1)
950 b3994ec5 2003-12-11 devnull textsetselect(t, t->org+t->fr.p1, selectq);
952 b3994ec5 2003-12-11 devnull textsetselect(t, selectq, t->org+t->fr.p1);
954 b3994ec5 2003-12-11 devnull textsetorigin(t, q0, TRUE);
959 b3994ec5 2003-12-11 devnull textselect(Text *t)
961 b3994ec5 2003-12-11 devnull uint q0, q1;
962 b3994ec5 2003-12-11 devnull int b, x, y;
963 4ca53ff0 2006-02-08 devnull int state;
964 4ca53ff0 2006-02-08 devnull enum { None, Cut, Paste };
966 b3994ec5 2003-12-11 devnull selecttext = t;
968 b3994ec5 2003-12-11 devnull * To have double-clicking and chording, we double-click
969 b3994ec5 2003-12-11 devnull * immediately if it might make sense.
971 b3994ec5 2003-12-11 devnull b = mouse->buttons;
972 b3994ec5 2003-12-11 devnull q0 = t->q0;
973 b3994ec5 2003-12-11 devnull q1 = t->q1;
974 b3994ec5 2003-12-11 devnull selectq = t->org+frcharofpt(&t->fr, mouse->xy);
975 b3994ec5 2003-12-11 devnull if(clicktext==t && mouse->msec-clickmsec<500)
976 b3994ec5 2003-12-11 devnull if(q0==q1 && selectq==q0){
977 b3994ec5 2003-12-11 devnull textdoubleclick(t, &q0, &q1);
978 b3994ec5 2003-12-11 devnull textsetselect(t, q0, q1);
979 b3994ec5 2003-12-11 devnull flushimage(display, 1);
980 b3994ec5 2003-12-11 devnull x = mouse->xy.x;
981 b3994ec5 2003-12-11 devnull y = mouse->xy.y;
982 b3994ec5 2003-12-11 devnull /* stay here until something interesting happens */
984 b3994ec5 2003-12-11 devnull readmouse(mousectl);
985 b3994ec5 2003-12-11 devnull while(mouse->buttons==b && abs(mouse->xy.x-x)<3 && abs(mouse->xy.y-y)<3);
986 b3994ec5 2003-12-11 devnull mouse->xy.x = x; /* in case we're calling frselect */
987 b3994ec5 2003-12-11 devnull mouse->xy.y = y;
988 b3994ec5 2003-12-11 devnull q0 = t->q0; /* may have changed */
989 b3994ec5 2003-12-11 devnull q1 = t->q1;
990 b3994ec5 2003-12-11 devnull selectq = q0;
992 b3994ec5 2003-12-11 devnull if(mouse->buttons == b){
993 b3994ec5 2003-12-11 devnull t->fr.scroll = framescroll;
994 b3994ec5 2003-12-11 devnull frselect(&t->fr, mousectl);
995 b3994ec5 2003-12-11 devnull /* horrible botch: while asleep, may have lost selection altogether */
996 b3994ec5 2003-12-11 devnull if(selectq > t->file->b.nc)
997 b3994ec5 2003-12-11 devnull selectq = t->org + t->fr.p0;
998 5544aaf9 2005-03-18 devnull t->fr.scroll = nil;
999 b3994ec5 2003-12-11 devnull if(selectq < t->org)
1000 b3994ec5 2003-12-11 devnull q0 = selectq;
1002 b3994ec5 2003-12-11 devnull q0 = t->org + t->fr.p0;
1003 b3994ec5 2003-12-11 devnull if(selectq > t->org+t->fr.nchars)
1004 b3994ec5 2003-12-11 devnull q1 = selectq;
1006 b3994ec5 2003-12-11 devnull q1 = t->org+t->fr.p1;
1008 b3994ec5 2003-12-11 devnull if(q0 == q1){
1009 b3994ec5 2003-12-11 devnull if(q0==t->q0 && clicktext==t && mouse->msec-clickmsec<500){
1010 b3994ec5 2003-12-11 devnull textdoubleclick(t, &q0, &q1);
1011 b3994ec5 2003-12-11 devnull clicktext = nil;
1013 b3994ec5 2003-12-11 devnull clicktext = t;
1014 b3994ec5 2003-12-11 devnull clickmsec = mouse->msec;
1017 b3994ec5 2003-12-11 devnull clicktext = nil;
1018 b3994ec5 2003-12-11 devnull textsetselect(t, q0, q1);
1019 b3994ec5 2003-12-11 devnull flushimage(display, 1);
1020 4ca53ff0 2006-02-08 devnull state = None; /* what we've done; undo when possible */
1021 b3994ec5 2003-12-11 devnull while(mouse->buttons){
1022 b3994ec5 2003-12-11 devnull mouse->msec = 0;
1023 b3994ec5 2003-12-11 devnull b = mouse->buttons;
1024 8b9a1d4c 2006-02-06 devnull if((b&1) && (b&6)){
1025 4ca53ff0 2006-02-08 devnull if(state==None && t->what==Body){
1027 b3994ec5 2003-12-11 devnull filemark(t->w->body.file);
1029 b3994ec5 2003-12-11 devnull if(b & 2){
1030 4ca53ff0 2006-02-08 devnull if(state==Paste && t->what==Body){
1031 b3994ec5 2003-12-11 devnull winundo(t->w, TRUE);
1032 4ca53ff0 2006-02-08 devnull textsetselect(t, q0, t->q1);
1033 4ca53ff0 2006-02-08 devnull state = None;
1034 4ca53ff0 2006-02-08 devnull }else if(state != Cut){
1035 b3994ec5 2003-12-11 devnull cut(t, t, nil, TRUE, TRUE, nil, 0);
1036 4ca53ff0 2006-02-08 devnull state = Cut;
1039 4ca53ff0 2006-02-08 devnull if(state==Cut && t->what==Body){
1040 b3994ec5 2003-12-11 devnull winundo(t->w, TRUE);
1041 b3994ec5 2003-12-11 devnull textsetselect(t, q0, t->q1);
1042 4ca53ff0 2006-02-08 devnull state = None;
1043 4ca53ff0 2006-02-08 devnull }else if(state != Paste){
1044 b3994ec5 2003-12-11 devnull paste(t, t, nil, TRUE, FALSE, nil, 0);
1045 4ca53ff0 2006-02-08 devnull state = Paste;
1048 b3994ec5 2003-12-11 devnull textscrdraw(t);
1049 b3994ec5 2003-12-11 devnull clearmouse();
1051 b3994ec5 2003-12-11 devnull flushimage(display, 1);
1052 b3994ec5 2003-12-11 devnull while(mouse->buttons == b)
1053 b3994ec5 2003-12-11 devnull readmouse(mousectl);
1054 b3994ec5 2003-12-11 devnull clicktext = nil;
1059 b3994ec5 2003-12-11 devnull textshow(Text *t, uint q0, uint q1, int doselect)
1061 b3994ec5 2003-12-11 devnull int qe;
1062 b3994ec5 2003-12-11 devnull int nl;
1063 b3994ec5 2003-12-11 devnull uint q;
1065 1a8f27c3 2004-05-14 devnull if(t->what != Body){
1066 1a8f27c3 2004-05-14 devnull if(doselect)
1067 1a8f27c3 2004-05-14 devnull textsetselect(t, q0, q1);
1068 b3994ec5 2003-12-11 devnull return;
1070 b3994ec5 2003-12-11 devnull if(t->w!=nil && t->fr.maxlines==0)
1071 b3994ec5 2003-12-11 devnull colgrow(t->col, t->w, 1);
1072 b3994ec5 2003-12-11 devnull if(doselect)
1073 b3994ec5 2003-12-11 devnull textsetselect(t, q0, q1);
1074 b3994ec5 2003-12-11 devnull qe = t->org+t->fr.nchars;
1075 b3994ec5 2003-12-11 devnull if(t->org<=q0 && (q0<qe || (q0==qe && qe==t->file->b.nc+t->ncache)))
1076 b3994ec5 2003-12-11 devnull textscrdraw(t);
1078 b3994ec5 2003-12-11 devnull if(t->w->nopen[QWevent] > 0)
1079 b3994ec5 2003-12-11 devnull nl = 3*t->fr.maxlines/4;
1081 b3994ec5 2003-12-11 devnull nl = t->fr.maxlines/4;
1082 b3994ec5 2003-12-11 devnull q = textbacknl(t, q0, nl);
1083 b3994ec5 2003-12-11 devnull /* avoid going backwards if trying to go forwards - long lines! */
1084 b3994ec5 2003-12-11 devnull if(!(q0>t->org && q<t->org))
1085 b3994ec5 2003-12-11 devnull textsetorigin(t, q, TRUE);
1086 b3994ec5 2003-12-11 devnull while(q0 > t->org+t->fr.nchars)
1087 b3994ec5 2003-12-11 devnull textsetorigin(t, t->org+1, FALSE);
1093 b3994ec5 2003-12-11 devnull region(int a, int b)
1095 b3994ec5 2003-12-11 devnull if(a < b)
1096 b3994ec5 2003-12-11 devnull return -1;
1097 b3994ec5 2003-12-11 devnull if(a == b)
1098 b3994ec5 2003-12-11 devnull return 0;
1099 b3994ec5 2003-12-11 devnull return 1;
1103 b3994ec5 2003-12-11 devnull selrestore(Frame *f, Point pt0, uint p0, uint p1)
1105 b3994ec5 2003-12-11 devnull if(p1<=f->p0 || p0>=f->p1){
1106 b3994ec5 2003-12-11 devnull /* no overlap */
1107 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt0, p0, p1, f->cols[BACK], f->cols[TEXT]);
1108 b3994ec5 2003-12-11 devnull return;
1110 b3994ec5 2003-12-11 devnull if(p0>=f->p0 && p1<=f->p1){
1111 b3994ec5 2003-12-11 devnull /* entirely inside */
1112 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt0, p0, p1, f->cols[HIGH], f->cols[HTEXT]);
1113 b3994ec5 2003-12-11 devnull return;
1116 b3994ec5 2003-12-11 devnull /* they now are known to overlap */
1118 b3994ec5 2003-12-11 devnull /* before selection */
1119 b3994ec5 2003-12-11 devnull if(p0 < f->p0){
1120 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt0, p0, f->p0, f->cols[BACK], f->cols[TEXT]);
1121 b3994ec5 2003-12-11 devnull p0 = f->p0;
1122 b3994ec5 2003-12-11 devnull pt0 = frptofchar(f, p0);
1124 b3994ec5 2003-12-11 devnull /* after selection */
1125 b3994ec5 2003-12-11 devnull if(p1 > f->p1){
1126 b3994ec5 2003-12-11 devnull frdrawsel0(f, frptofchar(f, f->p1), f->p1, p1, f->cols[BACK], f->cols[TEXT]);
1127 b3994ec5 2003-12-11 devnull p1 = f->p1;
1129 b3994ec5 2003-12-11 devnull /* inside selection */
1130 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt0, p0, p1, f->cols[HIGH], f->cols[HTEXT]);
1134 b3994ec5 2003-12-11 devnull textsetselect(Text *t, uint q0, uint q1)
1136 97e44323 2007-05-10 devnull int p0, p1, ticked;
1138 b3994ec5 2003-12-11 devnull /* t->fr.p0 and t->fr.p1 are always right; t->q0 and t->q1 may be off */
1139 b3994ec5 2003-12-11 devnull t->q0 = q0;
1140 b3994ec5 2003-12-11 devnull t->q1 = q1;
1141 b3994ec5 2003-12-11 devnull /* compute desired p0,p1 from q0,q1 */
1142 b3994ec5 2003-12-11 devnull p0 = q0-t->org;
1143 b3994ec5 2003-12-11 devnull p1 = q1-t->org;
1144 97e44323 2007-05-10 devnull ticked = 1;
1145 97e44323 2007-05-10 devnull if(p0 < 0){
1146 97e44323 2007-05-10 devnull ticked = 0;
1147 b3994ec5 2003-12-11 devnull p0 = 0;
1149 b3994ec5 2003-12-11 devnull if(p1 < 0)
1150 b3994ec5 2003-12-11 devnull p1 = 0;
1151 b3994ec5 2003-12-11 devnull if(p0 > t->fr.nchars)
1152 b3994ec5 2003-12-11 devnull p0 = t->fr.nchars;
1153 97e44323 2007-05-10 devnull if(p1 > t->fr.nchars){
1154 97e44323 2007-05-10 devnull ticked = 0;
1155 97e44323 2007-05-10 devnull p1 = t->fr.nchars;
1157 97e44323 2007-05-10 devnull if(p0==t->fr.p0 && p1==t->fr.p1){
1158 97e44323 2007-05-10 devnull if(p0 == p1 && ticked != t->fr.ticked)
1159 97e44323 2007-05-10 devnull frtick(&t->fr, frptofchar(&t->fr, p0), ticked);
1160 b3994ec5 2003-12-11 devnull return;
1162 b3994ec5 2003-12-11 devnull /* screen disagrees with desired selection */
1163 b3994ec5 2003-12-11 devnull if(t->fr.p1<=p0 || p1<=t->fr.p0 || p0==p1 || t->fr.p1==t->fr.p0){
1164 b3994ec5 2003-12-11 devnull /* no overlap or too easy to bother trying */
1165 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, t->fr.p0), t->fr.p0, t->fr.p1, 0);
1166 97e44323 2007-05-10 devnull if(p0 != p1 || ticked)
1167 97e44323 2007-05-10 devnull frdrawsel(&t->fr, frptofchar(&t->fr, p0), p0, p1, 1);
1168 b3994ec5 2003-12-11 devnull goto Return;
1170 b3994ec5 2003-12-11 devnull /* overlap; avoid unnecessary painting */
1171 b3994ec5 2003-12-11 devnull if(p0 < t->fr.p0){
1172 b3994ec5 2003-12-11 devnull /* extend selection backwards */
1173 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, p0), p0, t->fr.p0, 1);
1174 b3994ec5 2003-12-11 devnull }else if(p0 > t->fr.p0){
1175 b3994ec5 2003-12-11 devnull /* trim first part of selection */
1176 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, t->fr.p0), t->fr.p0, p0, 0);
1178 b3994ec5 2003-12-11 devnull if(p1 > t->fr.p1){
1179 b3994ec5 2003-12-11 devnull /* extend selection forwards */
1180 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, t->fr.p1), t->fr.p1, p1, 1);
1181 b3994ec5 2003-12-11 devnull }else if(p1 < t->fr.p1){
1182 b3994ec5 2003-12-11 devnull /* trim last part of selection */
1183 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, p1), p1, t->fr.p1, 0);
1186 b3994ec5 2003-12-11 devnull Return:
1187 b3994ec5 2003-12-11 devnull t->fr.p0 = p0;
1188 b3994ec5 2003-12-11 devnull t->fr.p1 = p1;
1192 b3994ec5 2003-12-11 devnull * Release the button in less than DELAY ms and it's considered a null selection
1193 b3994ec5 2003-12-11 devnull * if the mouse hardly moved, regardless of whether it crossed a char boundary.
1196 b3994ec5 2003-12-11 devnull DELAY = 2,
1197 cbeb0b26 2006-04-01 devnull MINMOVE = 4
1201 b3994ec5 2003-12-11 devnull xselect(Frame *f, Mousectl *mc, Image *col, uint *p1p) /* when called, button is down */
1203 b3994ec5 2003-12-11 devnull uint p0, p1, q, tmp;
1204 b3994ec5 2003-12-11 devnull ulong msec;
1205 b3994ec5 2003-12-11 devnull Point mp, pt0, pt1, qt;
1206 b3994ec5 2003-12-11 devnull int reg, b;
1208 b3994ec5 2003-12-11 devnull mp = mc->m.xy;
1209 b3994ec5 2003-12-11 devnull b = mc->m.buttons;
1210 b3994ec5 2003-12-11 devnull msec = mc->m.msec;
1212 b3994ec5 2003-12-11 devnull /* remove tick */
1213 b3994ec5 2003-12-11 devnull if(f->p0 == f->p1)
1214 b3994ec5 2003-12-11 devnull frtick(f, frptofchar(f, f->p0), 0);
1215 b3994ec5 2003-12-11 devnull p0 = p1 = frcharofpt(f, mp);
1216 b3994ec5 2003-12-11 devnull pt0 = frptofchar(f, p0);
1217 b3994ec5 2003-12-11 devnull pt1 = frptofchar(f, p1);
1218 b3994ec5 2003-12-11 devnull reg = 0;
1219 b3994ec5 2003-12-11 devnull frtick(f, pt0, 1);
1221 b3994ec5 2003-12-11 devnull q = frcharofpt(f, mc->m.xy);
1222 b3994ec5 2003-12-11 devnull if(p1 != q){
1223 b3994ec5 2003-12-11 devnull if(p0 == p1)
1224 b3994ec5 2003-12-11 devnull frtick(f, pt0, 0);
1225 b3994ec5 2003-12-11 devnull if(reg != region(q, p0)){ /* crossed starting point; reset */
1226 b3994ec5 2003-12-11 devnull if(reg > 0)
1227 b3994ec5 2003-12-11 devnull selrestore(f, pt0, p0, p1);
1228 b3994ec5 2003-12-11 devnull else if(reg < 0)
1229 b3994ec5 2003-12-11 devnull selrestore(f, pt1, p1, p0);
1230 b3994ec5 2003-12-11 devnull p1 = p0;
1231 b3994ec5 2003-12-11 devnull pt1 = pt0;
1232 b3994ec5 2003-12-11 devnull reg = region(q, p0);
1233 b3994ec5 2003-12-11 devnull if(reg == 0)
1234 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt0, p0, p1, col, display->white);
1236 b3994ec5 2003-12-11 devnull qt = frptofchar(f, q);
1237 b3994ec5 2003-12-11 devnull if(reg > 0){
1238 b3994ec5 2003-12-11 devnull if(q > p1)
1239 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt1, p1, q, col, display->white);
1241 b3994ec5 2003-12-11 devnull else if(q < p1)
1242 b3994ec5 2003-12-11 devnull selrestore(f, qt, q, p1);
1243 b3994ec5 2003-12-11 devnull }else if(reg < 0){
1244 b3994ec5 2003-12-11 devnull if(q > p1)
1245 b3994ec5 2003-12-11 devnull selrestore(f, pt1, p1, q);
1247 b3994ec5 2003-12-11 devnull frdrawsel0(f, qt, q, p1, col, display->white);
1249 b3994ec5 2003-12-11 devnull p1 = q;
1250 b3994ec5 2003-12-11 devnull pt1 = qt;
1252 b3994ec5 2003-12-11 devnull if(p0 == p1)
1253 b3994ec5 2003-12-11 devnull frtick(f, pt0, 1);
1254 b3994ec5 2003-12-11 devnull flushimage(f->display, 1);
1255 b3994ec5 2003-12-11 devnull readmouse(mc);
1256 b3994ec5 2003-12-11 devnull }while(mc->m.buttons == b);
1257 b3994ec5 2003-12-11 devnull if(mc->m.msec-msec < DELAY && p0!=p1
1258 b3994ec5 2003-12-11 devnull && abs(mp.x-mc->m.xy.x)<MINMOVE
1259 b3994ec5 2003-12-11 devnull && abs(mp.y-mc->m.xy.y)<MINMOVE) {
1260 b3994ec5 2003-12-11 devnull if(reg > 0)
1261 b3994ec5 2003-12-11 devnull selrestore(f, pt0, p0, p1);
1262 b3994ec5 2003-12-11 devnull else if(reg < 0)
1263 b3994ec5 2003-12-11 devnull selrestore(f, pt1, p1, p0);
1264 b3994ec5 2003-12-11 devnull p1 = p0;
1266 b3994ec5 2003-12-11 devnull if(p1 < p0){
1267 b3994ec5 2003-12-11 devnull tmp = p0;
1268 b3994ec5 2003-12-11 devnull p0 = p1;
1269 b3994ec5 2003-12-11 devnull p1 = tmp;
1271 b3994ec5 2003-12-11 devnull pt0 = frptofchar(f, p0);
1272 b3994ec5 2003-12-11 devnull if(p0 == p1)
1273 b3994ec5 2003-12-11 devnull frtick(f, pt0, 0);
1274 b3994ec5 2003-12-11 devnull selrestore(f, pt0, p0, p1);
1275 b3994ec5 2003-12-11 devnull /* restore tick */
1276 b3994ec5 2003-12-11 devnull if(f->p0 == f->p1)
1277 b3994ec5 2003-12-11 devnull frtick(f, frptofchar(f, f->p0), 1);
1278 b3994ec5 2003-12-11 devnull flushimage(f->display, 1);
1279 b3994ec5 2003-12-11 devnull *p1p = p1;
1280 b3994ec5 2003-12-11 devnull return p0;
1284 b3994ec5 2003-12-11 devnull textselect23(Text *t, uint *q0, uint *q1, Image *high, int mask)
1286 b3994ec5 2003-12-11 devnull uint p0, p1;
1287 b3994ec5 2003-12-11 devnull int buts;
1289 b3994ec5 2003-12-11 devnull p0 = xselect(&t->fr, mousectl, high, &p1);
1290 b3994ec5 2003-12-11 devnull buts = mousectl->m.buttons;
1291 b3994ec5 2003-12-11 devnull if((buts & mask) == 0){
1292 b3994ec5 2003-12-11 devnull *q0 = p0+t->org;
1293 b3994ec5 2003-12-11 devnull *q1 = p1+t->org;
1296 b3994ec5 2003-12-11 devnull while(mousectl->m.buttons)
1297 b3994ec5 2003-12-11 devnull readmouse(mousectl);
1298 b3994ec5 2003-12-11 devnull return buts;
1302 b3994ec5 2003-12-11 devnull textselect2(Text *t, uint *q0, uint *q1, Text **tp)
1304 b3994ec5 2003-12-11 devnull int buts;
1306 b3994ec5 2003-12-11 devnull *tp = nil;
1307 b3994ec5 2003-12-11 devnull buts = textselect23(t, q0, q1, but2col, 4);
1308 b3994ec5 2003-12-11 devnull if(buts & 4)
1309 b3994ec5 2003-12-11 devnull return 0;
1310 b3994ec5 2003-12-11 devnull if(buts & 1){ /* pick up argument */
1311 b3994ec5 2003-12-11 devnull *tp = argtext;
1312 b3994ec5 2003-12-11 devnull return 1;
1314 b3994ec5 2003-12-11 devnull return 1;
1318 b3994ec5 2003-12-11 devnull textselect3(Text *t, uint *q0, uint *q1)
1322 b3994ec5 2003-12-11 devnull h = (textselect23(t, q0, q1, but3col, 1|2) == 0);
1323 b3994ec5 2003-12-11 devnull return h;
1326 b3994ec5 2003-12-11 devnull static Rune left1[] = { '{', '[', '(', '<', 0xab, 0 };
1327 b3994ec5 2003-12-11 devnull static Rune right1[] = { '}', ']', ')', '>', 0xbb, 0 };
1328 b3994ec5 2003-12-11 devnull static Rune left2[] = { '\n', 0 };
1329 b3994ec5 2003-12-11 devnull static Rune left3[] = { '\'', '"', '`', 0 };
1332 b3994ec5 2003-12-11 devnull Rune *left[] = {
1339 b3994ec5 2003-12-11 devnull Rune *right[] = {
1340 b3994ec5 2003-12-11 devnull right1,
1347 b3994ec5 2003-12-11 devnull textdoubleclick(Text *t, uint *q0, uint *q1)
1349 b3994ec5 2003-12-11 devnull int c, i;
1350 b3994ec5 2003-12-11 devnull Rune *r, *l, *p;
1351 b3994ec5 2003-12-11 devnull uint q;
1353 4dbf2556 2009-09-11 russcox if(textclickhtmlmatch(t, q0, q1))
1354 4dbf2556 2009-09-11 russcox return;
1356 b3994ec5 2003-12-11 devnull for(i=0; left[i]!=nil; i++){
1357 b3994ec5 2003-12-11 devnull q = *q0;
1358 b3994ec5 2003-12-11 devnull l = left[i];
1359 b3994ec5 2003-12-11 devnull r = right[i];
1360 b3994ec5 2003-12-11 devnull /* try matching character to left, looking right */
1361 b3994ec5 2003-12-11 devnull if(q == 0)
1362 b3994ec5 2003-12-11 devnull c = '\n';
1364 b3994ec5 2003-12-11 devnull c = textreadc(t, q-1);
1365 b3994ec5 2003-12-11 devnull p = runestrchr(l, c);
1366 b3994ec5 2003-12-11 devnull if(p != nil){
1367 b3994ec5 2003-12-11 devnull if(textclickmatch(t, c, r[p-l], 1, &q))
1368 b3994ec5 2003-12-11 devnull *q1 = q-(c!='\n');
1369 b3994ec5 2003-12-11 devnull return;
1371 b3994ec5 2003-12-11 devnull /* try matching character to right, looking left */
1372 b3994ec5 2003-12-11 devnull if(q == t->file->b.nc)
1373 b3994ec5 2003-12-11 devnull c = '\n';
1375 b3994ec5 2003-12-11 devnull c = textreadc(t, q);
1376 b3994ec5 2003-12-11 devnull p = runestrchr(r, c);
1377 b3994ec5 2003-12-11 devnull if(p != nil){
1378 b3994ec5 2003-12-11 devnull if(textclickmatch(t, c, l[p-r], -1, &q)){
1379 b3994ec5 2003-12-11 devnull *q1 = *q0+(*q0<t->file->b.nc && c=='\n');
1380 b3994ec5 2003-12-11 devnull *q0 = q;
1381 b3994ec5 2003-12-11 devnull if(c!='\n' || q!=0 || textreadc(t, 0)=='\n')
1382 b3994ec5 2003-12-11 devnull (*q0)++;
1384 b3994ec5 2003-12-11 devnull return;
1388 b3994ec5 2003-12-11 devnull /* try filling out word to right */
1389 b3994ec5 2003-12-11 devnull while(*q1<t->file->b.nc && isalnum(textreadc(t, *q1)))
1390 b3994ec5 2003-12-11 devnull (*q1)++;
1391 b3994ec5 2003-12-11 devnull /* try filling out word to left */
1392 b3994ec5 2003-12-11 devnull while(*q0>0 && isalnum(textreadc(t, *q0-1)))
1393 b3994ec5 2003-12-11 devnull (*q0)--;
1397 b3994ec5 2003-12-11 devnull textclickmatch(Text *t, int cl, int cr, int dir, uint *q)
1399 b3994ec5 2003-12-11 devnull Rune c;
1400 b3994ec5 2003-12-11 devnull int nest;
1402 b3994ec5 2003-12-11 devnull nest = 1;
1403 b3994ec5 2003-12-11 devnull for(;;){
1404 b3994ec5 2003-12-11 devnull if(dir > 0){
1405 b3994ec5 2003-12-11 devnull if(*q == t->file->b.nc)
1407 b3994ec5 2003-12-11 devnull c = textreadc(t, *q);
1408 b3994ec5 2003-12-11 devnull (*q)++;
1410 b3994ec5 2003-12-11 devnull if(*q == 0)
1412 b3994ec5 2003-12-11 devnull (*q)--;
1413 b3994ec5 2003-12-11 devnull c = textreadc(t, *q);
1415 b3994ec5 2003-12-11 devnull if(c == cr){
1416 b3994ec5 2003-12-11 devnull if(--nest==0)
1417 b3994ec5 2003-12-11 devnull return 1;
1418 b3994ec5 2003-12-11 devnull }else if(c == cl)
1419 b3994ec5 2003-12-11 devnull nest++;
1421 b3994ec5 2003-12-11 devnull return cl=='\n' && nest==1;
1424 e47d0a1e 2009-07-26 rsc // Is the text starting at location q an html tag?
1425 e47d0a1e 2009-07-26 rsc // Return 1 for <a>, -1 for </a>, 0 for no tag or <a />.
1426 e47d0a1e 2009-07-26 rsc // Set *q1, if non-nil, to the location after the tag.
1428 e47d0a1e 2009-07-26 rsc ishtmlstart(Text *t, uint q, uint *q1)
1430 e47d0a1e 2009-07-26 rsc int c, c1, c2;
1432 e47d0a1e 2009-07-26 rsc if(q+2 > t->file->b.nc)
1434 e47d0a1e 2009-07-26 rsc if(textreadc(t, q++) != '<')
1436 e47d0a1e 2009-07-26 rsc c = textreadc(t, q++);
1439 e47d0a1e 2009-07-26 rsc while(c != '>') {
1440 e47d0a1e 2009-07-26 rsc if(q >= t->file->b.nc)
1443 e47d0a1e 2009-07-26 rsc c = textreadc(t, q++);
1447 e47d0a1e 2009-07-26 rsc if(c1 == '/') // closing tag
1449 e47d0a1e 2009-07-26 rsc if(c2 == '/' || c2 == '!') // open + close tag or comment
1454 e47d0a1e 2009-07-26 rsc // Is the text ending at location q an html tag?
1455 e47d0a1e 2009-07-26 rsc // Return 1 for <a>, -1 for </a>, 0 for no tag or <a />.
1456 e47d0a1e 2009-07-26 rsc // Set *q0, if non-nil, to the start of the tag.
1458 e47d0a1e 2009-07-26 rsc ishtmlend(Text *t, uint q, uint *q0)
1460 e47d0a1e 2009-07-26 rsc int c, c1, c2;
1464 e47d0a1e 2009-07-26 rsc if(textreadc(t, --q) != '>')
1466 e47d0a1e 2009-07-26 rsc c = textreadc(t, --q);
1469 e47d0a1e 2009-07-26 rsc while(c != '<') {
1473 e47d0a1e 2009-07-26 rsc c = textreadc(t, --q);
1477 e47d0a1e 2009-07-26 rsc if(c1 == '/') // closing tag
1479 e47d0a1e 2009-07-26 rsc if(c2 == '/' || c2 == '!') // open + close tag or comment
1485 e47d0a1e 2009-07-26 rsc textclickhtmlmatch(Text *t, uint *q0, uint *q1)
1487 e47d0a1e 2009-07-26 rsc int depth, n;
1488 e47d0a1e 2009-07-26 rsc uint q, nq;
1491 e47d0a1e 2009-07-26 rsc // after opening tag? scan forward for closing tag
1492 e47d0a1e 2009-07-26 rsc if(ishtmlend(t, q, nil) == 1) {
1494 e47d0a1e 2009-07-26 rsc while(q < t->file->b.nc) {
1495 e47d0a1e 2009-07-26 rsc n = ishtmlstart(t, q, &nq);
1496 e47d0a1e 2009-07-26 rsc if(n != 0) {
1497 e47d0a1e 2009-07-26 rsc depth += n;
1498 e47d0a1e 2009-07-26 rsc if(depth == 0) {
1509 e47d0a1e 2009-07-26 rsc // before closing tag? scan backward for opening tag
1510 e47d0a1e 2009-07-26 rsc if(ishtmlstart(t, q, nil) == -1) {
1511 e47d0a1e 2009-07-26 rsc depth = -1;
1512 e47d0a1e 2009-07-26 rsc while(q > 0) {
1513 e47d0a1e 2009-07-26 rsc n = ishtmlend(t, q, &nq);
1514 e47d0a1e 2009-07-26 rsc if(n != 0) {
1515 e47d0a1e 2009-07-26 rsc depth += n;
1516 e47d0a1e 2009-07-26 rsc if(depth == 0) {
1531 b3994ec5 2003-12-11 devnull textbacknl(Text *t, uint p, uint n)
1533 b3994ec5 2003-12-11 devnull int i, j;
1535 b3994ec5 2003-12-11 devnull /* look for start of this line if n==0 */
1536 b3994ec5 2003-12-11 devnull if(n==0 && p>0 && textreadc(t, p-1)!='\n')
1539 b3994ec5 2003-12-11 devnull while(i-->0 && p>0){
1540 b3994ec5 2003-12-11 devnull --p; /* it's at a newline now; back over it */
1541 b3994ec5 2003-12-11 devnull if(p == 0)
1543 b3994ec5 2003-12-11 devnull /* at 128 chars, call it a line anyway */
1544 b3994ec5 2003-12-11 devnull for(j=128; --j>0 && p>0; p--)
1545 b3994ec5 2003-12-11 devnull if(textreadc(t, p-1)=='\n')
1548 b3994ec5 2003-12-11 devnull return p;
1552 b3994ec5 2003-12-11 devnull textsetorigin(Text *t, uint org, int exact)
1554 b3994ec5 2003-12-11 devnull int i, a, fixup;
1555 b3994ec5 2003-12-11 devnull Rune *r;
1556 b3994ec5 2003-12-11 devnull uint n;
1558 b3994ec5 2003-12-11 devnull if(org>0 && !exact){
1559 b3994ec5 2003-12-11 devnull /* org is an estimate of the char posn; find a newline */
1560 b3994ec5 2003-12-11 devnull /* don't try harder than 256 chars */
1561 b3994ec5 2003-12-11 devnull for(i=0; i<256 && org<t->file->b.nc; i++){
1562 b3994ec5 2003-12-11 devnull if(textreadc(t, org) == '\n'){
1569 b3994ec5 2003-12-11 devnull a = org-t->org;
1570 b3994ec5 2003-12-11 devnull fixup = 0;
1571 b3994ec5 2003-12-11 devnull if(a>=0 && a<t->fr.nchars){
1572 b3994ec5 2003-12-11 devnull frdelete(&t->fr, 0, a);
1573 b3994ec5 2003-12-11 devnull fixup = 1; /* frdelete can leave end of last line in wrong selection mode; it doesn't know what follows */
1575 b3994ec5 2003-12-11 devnull else if(a<0 && -a<t->fr.nchars){
1576 b3994ec5 2003-12-11 devnull n = t->org - org;
1577 b3994ec5 2003-12-11 devnull r = runemalloc(n);
1578 b3994ec5 2003-12-11 devnull bufread(&t->file->b, org, r, n);
1579 b3994ec5 2003-12-11 devnull frinsert(&t->fr, r, r+n, 0);
1580 b3994ec5 2003-12-11 devnull free(r);
1582 b3994ec5 2003-12-11 devnull frdelete(&t->fr, 0, t->fr.nchars);
1583 b3994ec5 2003-12-11 devnull t->org = org;
1584 b3994ec5 2003-12-11 devnull textfill(t);
1585 b3994ec5 2003-12-11 devnull textscrdraw(t);
1586 b3994ec5 2003-12-11 devnull textsetselect(t, t->q0, t->q1);
1587 b3994ec5 2003-12-11 devnull if(fixup && t->fr.p1 > t->fr.p0)
1588 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, t->fr.p1-1), t->fr.p1-1, t->fr.p1, 1);
1592 b3994ec5 2003-12-11 devnull textreset(Text *t)
1594 b3994ec5 2003-12-11 devnull t->file->seq = 0;
1595 b3994ec5 2003-12-11 devnull t->eq0 = ~0;
1596 b3994ec5 2003-12-11 devnull /* do t->delete(0, t->nc, TRUE) without building backup stuff */
1597 b3994ec5 2003-12-11 devnull textsetselect(t, t->org, t->org);
1598 b3994ec5 2003-12-11 devnull frdelete(&t->fr, 0, t->fr.nchars);
1599 b3994ec5 2003-12-11 devnull t->org = 0;
1600 b3994ec5 2003-12-11 devnull t->q0 = 0;
1601 b3994ec5 2003-12-11 devnull t->q1 = 0;
1602 b3994ec5 2003-12-11 devnull filereset(t->file);
1603 b3994ec5 2003-12-11 devnull bufreset(&t->file->b);
