void textredraw(Text *t, Rectangle r, Font *f, Image *b, int odx) { int maxt; Rectangle rr; frinit(t, r, f, b, t->Frame.cols); rr = t->r; rr.min.x -= Scrollwid+Scrollgap; /* back fill to scroll bar */ draw(t->b, rr, t->cols[BACK], nil, ZP); /* use no wider than 3-space tabs in a directory */ maxt = maxtab; if(t->what == Body){ if(t->w->isdir) maxt = min(TABDIR, maxtab); else maxt = t->tabstop; } t->maxtab = maxt*stringwidth(f, "0"); if(t->what==Body && t->w->isdir && odx!=Dx(t->all)){ if(t->maxlines > 0){ textreset(t); textcolumnate(t, t->w->dlp, t->w->ndl); textshow(t, 0, 0, 1); } }else{ textfill(t); textsetselect(t, t->q0, t->q1); } }
void textdelete(Text *t, uint q0, uint q1) { uint n, p0, p1; n = q1-q0; if(n == 0) return; runemove(t->rs.r+q0, t->rs.r+q1, t->rs.nr-q1); t->rs.nr -= n; if(q0 < t->q0) t->q0 -= min(n, t->q0-q0); if(q0 < t->q1) t->q1 -= min(n, t->q1-q0); if(q1 <= t->org) t->org -= n; else if(q0 < t->org+t->nchars){ p1 = q1 - t->org; if(p1 > t->nchars) p1 = t->nchars; if(q0 < t->org){ t->org = q0; p0 = 0; }else p0 = q0 - t->org; frdelete(t, p0, p1); textfill(t); } t->rs.r[t->rs.nr] = L'\0'; }
void textdelete(Text *t, uint q0, uint q1, int tofile) { uint n, p0, p1; int i, c; Text *u; if(tofile && t->ncache != 0) error("text.delete"); n = q1-q0; if(n == 0) return; if(tofile){ filedelete(t->file, q0, q1); if(t->what == Body){ t->w->dirty = TRUE; t->w->utflastqid = -1; } if(t->file->ntext > 1) for(i=0; i<t->file->ntext; i++){ u = t->file->text[i]; if(u != t){ u->w->dirty = TRUE; /* always a body */ textdelete(u, q0, q1, FALSE); textsetselect(u, u->q0, u->q1); textscrdraw(u); } } } if(q0 < t->iq1) t->iq1 -= min(n, t->iq1-q0); if(q0 < t->q0) t->q0 -= min(n, t->q0-q0); if(q0 < t->q1) t->q1 -= min(n, t->q1-q0); if(q1 <= t->org) t->org -= n; else if(q0 < t->org+t->fr.nchars){ p1 = q1 - t->org; if(p1 > t->fr.nchars) p1 = t->fr.nchars; if(q0 < t->org){ t->org = q0; p0 = 0; }else p0 = q0 - t->org; frdelete(&t->fr, p0, p1); textfill(t); } if(t->w){ c = 'd'; if(t->what == Body) c = 'D'; winevent(t->w, "%c%d %d 0 0 \n", c, q0, q1); } }
void textredraw(Text *t, Rectangle r, Font *f, Image *b) { Rectangle r1; frinit(t, r, f, b, t->Frame.cols); r1 = t->r; r1.min.x -= Scrollsize+Scrollgap; /* back fill to scroll bar */ draw(t->b, r1, t->cols[BACK], nil, ZP); t->maxtab = Maxtab*stringwidth(f, "0"); textfill(t); textsetselect(t, t->q0, t->q1); }
void textsetorigin(Text *t, uint org, int exact) { int i, a, fixup; Rune *r; uint n; if(org>0 && !exact){ /* org is an estimate of the char posn; find a newline */ /* don't try harder than 256 chars */ for(i=0; i<256 && org<t->file->nc; i++){ if(textreadc(t, org) == '\n'){ org++; break; } org++; } } a = org-t->org; fixup = 0; if(a>=0 && a<t->nchars){ frdelete(t, 0, a); fixup = 1; /* frdelete can leave end of last line in wrong selection mode; it doesn't know what follows */ } else if(a<0 && -a<t->nchars){ n = t->org - org; r = runemalloc(n); bufread(t->file, org, r, n); frinsert(t, r, r+n, 0); free(r); }else frdelete(t, 0, t->nchars); t->org = org; textfill(t); textscrdraw(t); textsetselect(t, t->q0, t->q1); if(fixup && t->p1 > t->p0) frdrawsel(t, frptofchar(t, t->p1-1), t->p1-1, t->p1, 1); }
void texttype(Text *t, Rune r) { uint q0, q1; int nnb, nb, n, i; int nr; Rune *rp; Text *u; if(t->what!=Body && r=='\n') return; nr = 1; rp = &r; switch(r){ case Kleft: if(t->q0 > 0){ typecommit(t); textshow(t, t->q0-1, t->q0-1, TRUE); } return; case Kright: if(t->q1 < t->file->nc){ typecommit(t); textshow(t, t->q1+1, t->q1+1, TRUE); } return; case Kdown: n = t->maxlines/3; goto case_Down; case Kscrollonedown: n = mousescrollsize(t->maxlines); if(n <= 0) n = 1; goto case_Down; case Kpgdown: n = 2*t->maxlines/3; case_Down: q0 = t->org+frcharofpt(t, Pt(t->r.min.x, t->r.min.y+n*t->font->height)); textsetorigin(t, q0, TRUE); return; case Kup: n = t->maxlines/3; goto case_Up; case Kscrolloneup: n = mousescrollsize(t->maxlines); goto case_Up; case Kpgup: n = 2*t->maxlines/3; case_Up: q0 = textbacknl(t, t->org, n); textsetorigin(t, q0, TRUE); return; case Khome: typecommit(t); textshow(t, 0, 0, FALSE); return; case Kend: typecommit(t); textshow(t, t->file->nc, t->file->nc, FALSE); return; case 0x01: /* ^A: beginning of line */ typecommit(t); /* go to where ^U would erase, if not already at BOL */ nnb = 0; if(t->q0>0 && textreadc(t, t->q0-1)!='\n') nnb = textbswidth(t, 0x15); textshow(t, t->q0-nnb, t->q0-nnb, TRUE); return; case 0x05: /* ^E: end of line */ typecommit(t); q0 = t->q0; while(q0<t->file->nc && textreadc(t, q0)!='\n') q0++; textshow(t, q0, q0, TRUE); return; } if(t->what == Body){ seq++; filemark(t->file); } if(t->q1 > t->q0){ if(t->ncache != 0) error("text.type"); cut(t, t, nil, TRUE, TRUE, nil, 0); t->eq0 = ~0; } textshow(t, t->q0, t->q0, 1); switch(r){ case 0x06: case Kins: rp = textcomplete(t); if(rp == nil) return; nr = runestrlen(rp); break; /* fall through to normal insertion case */ case 0x1B: if(t->eq0 != ~0) textsetselect(t, t->eq0, t->q0); if(t->ncache > 0) typecommit(t); return; case 0x08: /* ^H: erase character */ case 0x15: /* ^U: erase line */ case 0x17: /* ^W: erase word */ if(t->q0 == 0) /* nothing to erase */ return; nnb = textbswidth(t, r); q1 = t->q0; q0 = q1-nnb; /* if selection is at beginning of window, avoid deleting invisible text */ if(q0 < t->org){ q0 = t->org; nnb = q1-q0; } if(nnb <= 0) return; for(i=0; i<t->file->ntext; i++){ u = t->file->text[i]; u->nofill = TRUE; nb = nnb; n = u->ncache; if(n > 0){ if(q1 != u->cq0+n) error("text.type backspace"); if(n > nb) n = nb; u->ncache -= n; textdelete(u, q1-n, q1, FALSE); nb -= n; } if(u->eq0==q1 || u->eq0==~0) u->eq0 = q0; if(nb && u==t) textdelete(u, q0, q0+nb, TRUE); if(u != t) textsetselect(u, u->q0, u->q1); else textsetselect(t, q0, q0); u->nofill = FALSE; } for(i=0; i<t->file->ntext; i++) textfill(t->file->text[i]); return; case '\n': if(t->w->autoindent){ /* find beginning of previous line using backspace code */ nnb = textbswidth(t, 0x15); /* ^U case */ rp = runemalloc(nnb + 1); nr = 0; rp[nr++] = r; for(i=0; i<nnb; i++){ r = textreadc(t, t->q0-nnb+i); if(r != ' ' && r != '\t') break; rp[nr++] = r; } } break; /* fall through to normal code */ } /* otherwise ordinary character; just insert, typically in caches of all texts */ for(i=0; i<t->file->ntext; i++){ u = t->file->text[i]; if(u->eq0 == ~0) u->eq0 = t->q0; if(u->ncache == 0) u->cq0 = t->q0; else if(t->q0 != u->cq0+u->ncache) error("text.type cq1"); textinsert(u, t->q0, rp, nr, FALSE); if(u != t) textsetselect(u, u->q0, u->q1); if(u->ncache+nr > u->ncachealloc){ u->ncachealloc += 10 + nr; u->cache = runerealloc(u->cache, u->ncachealloc); } runemove(u->cache+u->ncache, rp, nr); u->ncache += nr; } if(rp != &r) free(rp); textsetselect(t, t->q0+nr, t->q0+nr); if(r=='\n' && t->w!=nil) wincommit(t->w, t); }
void texttype(Text *t, Rune r) { uint q0, q1; int nnb, nb, n, i; int nr; Rune *rp; Text *u; if(t->what!=Body && t->what!=Tag && r=='\n') return; if(t->what == Tag) t->w->tagsafe = FALSE; nr = 1; rp = &r; switch(r){ case Kleft: typecommit(t); if(t->q0 > 0) textshow(t, t->q0-1, t->q0-1, TRUE); return; case Kright: typecommit(t); if(t->q1 < t->file->b.nc) textshow(t, t->q1+1, t->q1+1, TRUE); return; case Kdown: if(t->what == Tag) goto Tagdown; n = t->fr.maxlines/3; goto case_Down; case Kscrollonedown: if(t->what == Tag) goto Tagdown; n = mousescrollsize(t->fr.maxlines); if(n <= 0) n = 1; goto case_Down; case Kpgdown: n = 2*t->fr.maxlines/3; case_Down: q0 = t->org+frcharofpt(&t->fr, Pt(t->fr.r.min.x, t->fr.r.min.y+n*t->fr.font->height)); textsetorigin(t, q0, TRUE); return; case Kup: if(t->what == Tag) goto Tagup; n = t->fr.maxlines/3; goto case_Up; case Kscrolloneup: if(t->what == Tag) goto Tagup; n = mousescrollsize(t->fr.maxlines); goto case_Up; case Kpgup: n = 2*t->fr.maxlines/3; case_Up: q0 = textbacknl(t, t->org, n); textsetorigin(t, q0, TRUE); return; case Khome: typecommit(t); if(t->org > t->iq1) { q0 = textbacknl(t, t->iq1, 1); textsetorigin(t, q0, TRUE); } else textshow(t, 0, 0, FALSE); return; case Kend: typecommit(t); if(t->iq1 > t->org+t->fr.nchars) { if(t->iq1 > t->file->b.nc) { // should not happen, but does. and it will crash textbacknl. t->iq1 = t->file->b.nc; } q0 = textbacknl(t, t->iq1, 1); textsetorigin(t, q0, TRUE); } else textshow(t, t->file->b.nc, t->file->b.nc, FALSE); return; case 0x01: /* ^A: beginning of line */ typecommit(t); /* go to where ^U would erase, if not already at BOL */ nnb = 0; if(t->q0>0 && textreadc(t, t->q0-1)!='\n') nnb = textbswidth(t, 0x15); textshow(t, t->q0-nnb, t->q0-nnb, TRUE); return; case 0x05: /* ^E: end of line */ typecommit(t); q0 = t->q0; while(q0<t->file->b.nc && textreadc(t, q0)!='\n') q0++; textshow(t, q0, q0, TRUE); return; case Kcmd+'c': /* %C: copy */ typecommit(t); cut(t, t, nil, TRUE, FALSE, nil, 0); return; case Kcmd+'z': /* %Z: undo */ typecommit(t); undo(t, nil, nil, TRUE, 0, nil, 0); return; Tagdown: /* expand tag to show all text */ if(!t->w->tagexpand){ t->w->tagexpand = TRUE; winresize(t->w, t->w->r, FALSE, TRUE); } return; Tagup: /* shrink tag to single line */ if(t->w->tagexpand){ t->w->tagexpand = FALSE; t->w->taglines = 1; winresize(t->w, t->w->r, FALSE, TRUE); } return; } if(t->what == Body){ seq++; filemark(t->file); } /* cut/paste must be done after the seq++/filemark */ switch(r){ case Kcmd+'x': /* %X: cut */ typecommit(t); if(t->what == Body){ seq++; filemark(t->file); } cut(t, t, nil, TRUE, TRUE, nil, 0); textshow(t, t->q0, t->q0, 1); t->iq1 = t->q0; return; case Kcmd+'v': /* %V: paste */ typecommit(t); if(t->what == Body){ seq++; filemark(t->file); } paste(t, t, nil, TRUE, FALSE, nil, 0); textshow(t, t->q0, t->q1, 1); t->iq1 = t->q1; return; } if(t->q1 > t->q0){ if(t->ncache != 0) error("text.type"); cut(t, t, nil, TRUE, TRUE, nil, 0); t->eq0 = ~0; } textshow(t, t->q0, t->q0, 1); switch(r){ case 0x06: /* ^F: complete */ case Kins: typecommit(t); rp = textcomplete(t); if(rp == nil) return; nr = runestrlen(rp); break; /* fall through to normal insertion case */ case 0x1B: if(t->eq0 != ~0) { if(t->eq0 <= t->q0) textsetselect(t, t->eq0, t->q0); else textsetselect(t, t->q0, t->eq0); } if(t->ncache > 0) typecommit(t); t->iq1 = t->q0; return; case 0x08: /* ^H: erase character */ case 0x15: /* ^U: erase line */ case 0x17: /* ^W: erase word */ if(t->q0 == 0) /* nothing to erase */ return; nnb = textbswidth(t, r); q1 = t->q0; q0 = q1-nnb; /* if selection is at beginning of window, avoid deleting invisible text */ if(q0 < t->org){ q0 = t->org; nnb = q1-q0; } if(nnb <= 0) return; for(i=0; i<t->file->ntext; i++){ u = t->file->text[i]; u->nofill = TRUE; nb = nnb; n = u->ncache; if(n > 0){ if(q1 != u->cq0+n) error("text.type backspace"); if(n > nb) n = nb; u->ncache -= n; textdelete(u, q1-n, q1, FALSE); nb -= n; } if(u->eq0==q1 || u->eq0==~0) u->eq0 = q0; if(nb && u==t) textdelete(u, q0, q0+nb, TRUE); if(u != t) textsetselect(u, u->q0, u->q1); else textsetselect(t, q0, q0); u->nofill = FALSE; } for(i=0; i<t->file->ntext; i++) textfill(t->file->text[i]); t->iq1 = t->q0; return; case '\n': if(t->w->autoindent){ /* find beginning of previous line using backspace code */ nnb = textbswidth(t, 0x15); /* ^U case */ rp = runemalloc(nnb + 1); nr = 0; rp[nr++] = r; for(i=0; i<nnb; i++){ r = textreadc(t, t->q0-nnb+i); if(r != ' ' && r != '\t') break; rp[nr++] = r; } } break; /* fall through to normal code */ } /* otherwise ordinary character; just insert, typically in caches of all texts */ for(i=0; i<t->file->ntext; i++){ u = t->file->text[i]; if(u->eq0 == ~0) u->eq0 = t->q0; if(u->ncache == 0) u->cq0 = t->q0; else if(t->q0 != u->cq0+u->ncache) error("text.type cq1"); /* * Change the tag before we add to ncache, * so that if the window body is resized the * commit will not find anything in ncache. */ if(u->what==Body && u->ncache == 0){ u->needundo = TRUE; winsettag(t->w); u->needundo = FALSE; } textinsert(u, t->q0, rp, nr, FALSE); if(u != t) textsetselect(u, u->q0, u->q1); if(u->ncache+nr > u->ncachealloc){ u->ncachealloc += 10 + nr; u->cache = runerealloc(u->cache, u->ncachealloc); } runemove(u->cache+u->ncache, rp, nr); u->ncache += nr; } if(rp != &r) free(rp); textsetselect(t, t->q0+nr, t->q0+nr); if(r=='\n' && t->w!=nil) wincommit(t->w, t); t->iq1 = t->q0; }