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- /*
- * This file is part of the UCB release of Plan 9. It is subject to the license
- * terms in the LICENSE file found in the top-level directory of this
- * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
- * part of the UCB release of Plan 9, including this file, may be copied,
- * modified, propagated, or distributed except according to the terms contained
- * in the LICENSE file.
- */
- #include <u.h>
- #include <libc.h>
- #include <draw.h>
- #include <thread.h>
- #include <cursor.h>
- #include <mouse.h>
- #include <keyboard.h>
- #include <frame.h>
- #include <fcall.h>
- #include <plumb.h>
- #include "dat.h"
- #include "fns.h"
- void
- colinit(Column *c, Rectangle r)
- {
- Rectangle r1;
- Text *t;
- draw(screen, r, display->white, nil, ZP);
- c->r = r;
- c->w = nil;
- c->nw = 0;
- t = &c->tag;
- t->w = nil;
- t->col = c;
- r1 = r;
- r1.max.y = r1.min.y + font->height;
- textinit(t, fileaddtext(nil, t), r1, &reffont, tagcols);
- t->what = Columntag;
- r1.min.y = r1.max.y;
- r1.max.y += Border;
- draw(screen, r1, display->black, nil, ZP);
- textinsert(t, 0, (Rune*)L"New Cut Paste Snarf Sort Zerox Delcol ", 38, TRUE);
- textsetselect(t, t->file->Buffer.nc, t->file->Buffer.nc);
- draw(screen, t->scrollr, colbutton, nil, colbutton->r.min);
- c->safe = TRUE;
- }
- Window*
- coladd(Column *c, Window *w, Window *clone, int y)
- {
- Rectangle r, r1;
- Window *v;
- int i, t;
- v = nil;
- r = c->r;
- r.min.y = c->tag.Frame.r.max.y+Border;
- if(y<r.min.y && c->nw>0){ /* steal half of last window by default */
- v = c->w[c->nw-1];
- y = v->body.Frame.r.min.y+Dy(v->body.Frame.r)/2;
- }
- /* look for window we'll land on */
- for(i=0; i<c->nw; i++){
- v = c->w[i];
- if(y < v->r.max.y)
- break;
- }
- if(c->nw > 0){
- if(i < c->nw)
- i++; /* new window will go after v */
- /*
- * if v's too small, grow it first.
- */
- if(!c->safe || v->body.Frame.maxlines<=3){
- colgrow(c, v, 1);
- y = v->body.Frame.r.min.y+Dy(v->body.Frame.r)/2;
- }
- r = v->r;
- if(i == c->nw)
- t = c->r.max.y;
- else
- t = c->w[i]->r.min.y-Border;
- r.max.y = t;
- draw(screen, r, textcols[BACK], nil, ZP);
- r1 = r;
- y = min(y, t-(v->tag.Frame.font->height+v->body.Frame.font->height+Border+1));
- r1.max.y = min(y, v->body.Frame.r.min.y+v->body.Frame.nlines*v->body.Frame.font->height);
- r1.min.y = winresize(v, r1, FALSE);
- r1.max.y = r1.min.y+Border;
- draw(screen, r1, display->black, nil, ZP);
- r.min.y = r1.max.y;
- }
- if(w == nil){
- w = emalloc(sizeof(Window));
- w->col = c;
- draw(screen, r, textcols[BACK], nil, ZP);
- wininit(w, clone, r);
- }else{
- w->col = c;
- winresize(w, r, FALSE);
- }
- w->tag.col = c;
- w->tag.row = c->row;
- w->body.col = c;
- w->body.row = c->row;
- c->w = realloc(c->w, (c->nw+1)*sizeof(Window*));
- memmove(c->w+i+1, c->w+i, (c->nw-i)*sizeof(Window*));
- c->nw++;
- c->w[i] = w;
- savemouse(w);
- /* near but not on the button */
- moveto(mousectl, addpt(w->tag.scrollr.max, Pt(3, 3)));
- barttext = &w->body;
- c->safe = TRUE;
- return w;
- }
- void
- colclose(Column *c, Window *w, int dofree)
- {
- Rectangle r;
- int i, didmouse, up;
- /* w is locked */
- if(!c->safe)
- colgrow(c, w, 1);
- for(i=0; i<c->nw; i++)
- if(c->w[i] == w)
- goto Found;
- error("can't find window");
- Found:
- r = w->r;
- w->tag.col = nil;
- w->body.col = nil;
- w->col = nil;
- didmouse = restoremouse(w);
- if(dofree){
- windelete(w);
- winclose(w);
- }
- memmove(c->w+i, c->w+i+1, (c->nw-i)*sizeof(Window*));
- c->nw--;
- c->w = realloc(c->w, c->nw*sizeof(Window*));
- if(c->nw == 0){
- draw(screen, r, display->white, nil, ZP);
- return;
- }
- up = 0;
- if(i == c->nw){ /* extend last window down */
- w = c->w[i-1];
- r.min.y = w->r.min.y;
- r.max.y = c->r.max.y;
- }else{ /* extend next window up */
- w = c->w[i];
- r.max.y = w->r.max.y;
- up = 1;
- }
- draw(screen, r, textcols[BACK], nil, ZP);
- if(c->safe){
- winresize(w, r, FALSE);
- USED(up);
- if(!didmouse)
- movetodel(w);
- }
- }
- void
- colcloseall(Column *c)
- {
- int i;
- Window *w;
- if(c == activecol)
- activecol = nil;
- textclose(&c->tag);
- for(i=0; i<c->nw; i++){
- w = c->w[i];
- winclose(w);
- }
- c->nw = 0;
- free(c->w);
- free(c);
- clearmouse();
- }
- void
- colmousebut(Column *c)
- {
- moveto(mousectl, divpt(addpt(c->tag.scrollr.min, c->tag.scrollr.max), 2));
- }
- void
- colresize(Column *c, Rectangle r)
- {
- int i;
- Rectangle r1, r2;
- Window *w;
- clearmouse();
- r1 = r;
- r1.max.y = r1.min.y + c->tag.Frame.font->height;
- textresize(&c->tag, r1);
- draw(screen, c->tag.scrollr, colbutton, nil, colbutton->r.min);
- r1.min.y = r1.max.y;
- r1.max.y += Border;
- draw(screen, r1, display->black, nil, ZP);
- r1.max.y = r.max.y;
- for(i=0; i<c->nw; i++){
- w = c->w[i];
- w->maxlines = 0;
- if(i == c->nw-1)
- r1.max.y = r.max.y;
- else
- r1.max.y = r1.min.y+(Dy(w->r)+Border)*Dy(r)/Dy(c->r);
- r2 = r1;
- r2.max.y = r2.min.y+Border;
- draw(screen, r2, display->black, nil, ZP);
- r1.min.y = r2.max.y;
- r1.min.y = winresize(w, r1, FALSE);
- }
- c->r = r;
- }
- static
- int
- colcmp(const void *a, const void *b)
- {
- Rune *r1, *r2;
- int i, nr1, nr2;
- r1 = (*(Window**)a)->body.file->name;
- nr1 = (*(Window**)a)->body.file->nname;
- r2 = (*(Window**)b)->body.file->name;
- nr2 = (*(Window**)b)->body.file->nname;
- for(i=0; i<nr1 && i<nr2; i++){
- if(*r1 != *r2)
- return *r1-*r2;
- r1++;
- r2++;
- }
- return nr1-nr2;
- }
- void
- colsort(Column *c)
- {
- int i, y;
- Rectangle r, r1, *rp;
- Window **wp, *w;
- if(c->nw == 0)
- return;
- clearmouse();
- rp = emalloc(c->nw*sizeof(Rectangle));
- wp = emalloc(c->nw*sizeof(Window*));
- memmove(wp, c->w, c->nw*sizeof(Window*));
- qsort(wp, c->nw, sizeof(Window*), colcmp);
- for(i=0; i<c->nw; i++)
- rp[i] = wp[i]->r;
- r = c->r;
- r.min.y = c->tag.Frame.r.max.y;
- draw(screen, r, textcols[BACK], nil, ZP);
- y = r.min.y;
- for(i=0; i<c->nw; i++){
- w = wp[i];
- r.min.y = y;
- if(i == c->nw-1)
- r.max.y = c->r.max.y;
- else
- r.max.y = r.min.y+Dy(w->r)+Border;
- r1 = r;
- r1.max.y = r1.min.y+Border;
- draw(screen, r1, display->black, nil, ZP);
- r.min.y = r1.max.y;
- y = winresize(w, r, FALSE);
- }
- free(rp);
- free(c->w);
- c->w = wp;
- }
- void
- colgrow(Column *c, Window *w, int but)
- {
- Rectangle r, cr;
- int i, j, k, l, y1, y2, *nl, *ny, tot, nnl, onl, dnl, h;
- Window *v;
- for(i=0; i<c->nw; i++)
- if(c->w[i] == w)
- goto Found;
- error("can't find window");
- Found:
- cr = c->r;
- if(but < 0){ /* make sure window fills its own space properly */
- r = w->r;
- if(i==c->nw-1 || c->safe==FALSE)
- r.max.y = cr.max.y;
- else
- r.max.y = c->w[i+1]->r.min.y;
- winresize(w, r, FALSE);
- return;
- }
- cr.min.y = c->w[0]->r.min.y;
- if(but == 3){ /* full size */
- if(i != 0){
- v = c->w[0];
- c->w[0] = w;
- c->w[i] = v;
- }
- draw(screen, cr, textcols[BACK], nil, ZP);
- winresize(w, cr, FALSE);
- for(i=1; i<c->nw; i++)
- c->w[i]->body.Frame.maxlines = 0;
- c->safe = FALSE;
- return;
- }
- /* store old #lines for each window */
- onl = w->body.Frame.maxlines;
- nl = emalloc(c->nw * sizeof(int));
- ny = emalloc(c->nw * sizeof(int));
- tot = 0;
- for(j=0; j<c->nw; j++){
- l = c->w[j]->body.Frame.maxlines;
- nl[j] = l;
- tot += l;
- }
- /* approximate new #lines for this window */
- if(but == 2){ /* as big as can be */
- memset(nl, 0, c->nw * sizeof(int));
- goto Pack;
- }
- nnl = min(onl + max(min(5, w->maxlines), onl/2), tot);
- if(nnl < w->maxlines)
- nnl = (w->maxlines+nnl)/2;
- if(nnl == 0)
- nnl = 2;
- dnl = nnl - onl;
- /* compute new #lines for each window */
- for(k=1; k<c->nw; k++){
- /* prune from later window */
- j = i+k;
- if(j<c->nw && nl[j]){
- l = min(dnl, max(1, nl[j]/2));
- nl[j] -= l;
- nl[i] += l;
- dnl -= l;
- }
- /* prune from earlier window */
- j = i-k;
- if(j>=0 && nl[j]){
- l = min(dnl, max(1, nl[j]/2));
- nl[j] -= l;
- nl[i] += l;
- dnl -= l;
- }
- }
- Pack:
- /* pack everyone above */
- y1 = cr.min.y;
- for(j=0; j<i; j++){
- v = c->w[j];
- r = v->r;
- r.min.y = y1;
- r.max.y = y1+Dy(v->tag.all);
- if(nl[j])
- r.max.y += 1 + nl[j]*v->body.Frame.font->height;
- if(!c->safe || !eqrect(v->r, r)){
- draw(screen, r, textcols[BACK], nil, ZP);
- winresize(v, r, c->safe);
- }
- r.min.y = v->r.max.y;
- r.max.y += Border;
- draw(screen, r, display->black, nil, ZP);
- y1 = r.max.y;
- }
- /* scan to see new size of everyone below */
- y2 = c->r.max.y;
- for(j=c->nw-1; j>i; j--){
- v = c->w[j];
- r = v->r;
- r.min.y = y2-Dy(v->tag.all);
- if(nl[j])
- r.min.y -= 1 + nl[j]*v->body.Frame.font->height;
- r.min.y -= Border;
- ny[j] = r.min.y;
- y2 = r.min.y;
- }
- /* compute new size of window */
- r = w->r;
- r.min.y = y1;
- r.max.y = r.min.y+Dy(w->tag.all);
- h = w->body.Frame.font->height;
- if(y2-r.max.y >= 1+h+Border){
- r.max.y += 1;
- r.max.y += h*((y2-r.max.y)/h);
- }
- /* draw window */
- if(!c->safe || !eqrect(w->r, r)){
- draw(screen, r, textcols[BACK], nil, ZP);
- winresize(w, r, c->safe);
- }
- if(i < c->nw-1){
- r.min.y = r.max.y;
- r.max.y += Border;
- draw(screen, r, display->black, nil, ZP);
- for(j=i+1; j<c->nw; j++)
- ny[j] -= (y2-r.max.y);
- }
- /* pack everyone below */
- y1 = r.max.y;
- for(j=i+1; j<c->nw; j++){
- v = c->w[j];
- r = v->r;
- r.min.y = y1;
- r.max.y = y1+Dy(v->tag.all);
- if(nl[j])
- r.max.y += 1 + nl[j]*v->body.Frame.font->height;
- if(!c->safe || !eqrect(v->r, r)){
- draw(screen, r, textcols[BACK], nil, ZP);
- winresize(v, r, c->safe);
- }
- if(j < c->nw-1){ /* no border on last window */
- r.min.y = v->r.max.y;
- r.max.y += Border;
- draw(screen, r, display->black, nil, ZP);
- }
- y1 = r.max.y;
- }
- r = w->r;
- r.min.y = y1;
- r.max.y = c->r.max.y;
- draw(screen, r, textcols[BACK], nil, ZP);
- free(nl);
- free(ny);
- c->safe = TRUE;
- winmousebut(w);
- }
- void
- coldragwin(Column *c, Window *w, int but)
- {
- Rectangle r;
- int i, b;
- Point p, op;
- Window *v;
- Column *nc;
- clearmouse();
- setcursor(mousectl, &boxcursor);
- b = mouse->buttons;
- op = mouse->xy;
- while(mouse->buttons == b)
- readmouse(mousectl);
- setcursor(mousectl, nil);
- if(mouse->buttons){
- while(mouse->buttons)
- readmouse(mousectl);
- return;
- }
- for(i=0; i<c->nw; i++)
- if(c->w[i] == w)
- goto Found;
- error("can't find window");
- Found:
- p = mouse->xy;
- if(abs(p.x-op.x)<5 && abs(p.y-op.y)<5){
- colgrow(c, w, but);
- winmousebut(w);
- return;
- }
- /* is it a flick to the right? */
- if(abs(p.y-op.y)<10 && p.x>op.x+30 && rowwhichcol(c->row, p)==c)
- p.x = op.x+Dx(w->r); /* yes: toss to next column */
- nc = rowwhichcol(c->row, p);
- if(nc!=nil && nc!=c){
- colclose(c, w, FALSE);
- coladd(nc, w, nil, p.y);
- winmousebut(w);
- return;
- }
- if(i==0 && c->nw==1)
- return; /* can't do it */
- if((i>0 && p.y<c->w[i-1]->r.min.y) || (i<c->nw-1 && p.y>w->r.max.y)
- || (i==0 && p.y>w->r.max.y)){
- /* shuffle */
- colclose(c, w, FALSE);
- coladd(c, w, nil, p.y);
- winmousebut(w);
- return;
- }
- if(i == 0)
- return;
- v = c->w[i-1];
- if(p.y < v->tag.all.max.y)
- p.y = v->tag.all.max.y;
- if(p.y > w->r.max.y-Dy(w->tag.all)-Border)
- p.y = w->r.max.y-Dy(w->tag.all)-Border;
- r = v->r;
- r.max.y = p.y;
- if(r.max.y > v->body.Frame.r.min.y){
- r.max.y -= (r.max.y-v->body.Frame.r.min.y)%v->body.Frame.font->height;
- if(v->body.Frame.r.min.y == v->body.Frame.r.max.y)
- r.max.y++;
- }
- if(!eqrect(v->r, r)){
- draw(screen, r, textcols[BACK], nil, ZP);
- winresize(v, r, c->safe);
- }
- r.min.y = v->r.max.y;
- r.max.y = r.min.y+Border;
- draw(screen, r, display->black, nil, ZP);
- r.min.y = r.max.y;
- if(i == c->nw-1)
- r.max.y = c->r.max.y;
- else
- r.max.y = c->w[i+1]->r.min.y-Border;
- if(!eqrect(w->r, r)){
- draw(screen, r, textcols[BACK], nil, ZP);
- winresize(w, r, c->safe);
- }
- c->safe = TRUE;
- winmousebut(w);
- }
- Text*
- colwhich(Column *c, Point p)
- {
- int i;
- Window *w;
- if(!ptinrect(p, c->r))
- return nil;
- if(ptinrect(p, c->tag.all))
- return &c->tag;
- for(i=0; i<c->nw; i++){
- w = c->w[i];
- if(ptinrect(p, w->r)){
- if(ptinrect(p, w->tag.all))
- return &w->tag;
- return &w->body;
- }
- /* scrollr drops below w->r on low windows */
- if(ptinrect(p, w->body.scrollr))
- return &w->body;
- }
- return nil;
- }
- int
- colclean(Column *c)
- {
- int i, clean;
- clean = TRUE;
- for(i=0; i<c->nw; i++)
- clean &= winclean(c->w[i], TRUE);
- return clean;
- }
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