ref: e3583a0837891ab2059b91f6500c88baf34982dc
dir: /sys/src/cmd/spred/win.c/
#include <u.h> #include <libc.h> #include <bio.h> #include <thread.h> #include <draw.h> #include <mouse.h> #include <cursor.h> #include <frame.h> #include "dat.h" #include "fns.h" Screen *scr; extern Wintab *tabs[]; Win wlist; File flist; Win *actw, *actf, *cmdw; Image *invcol; void* emalloc(ulong sz) { void *v; v = malloc(sz); if(v == nil) sysfatal("malloc: %r"); memset(v, 0, sz); setmalloctag(v, getcallerpc(&sz)); return v; } void initwin(void) { Rectangle r; int i, j; scr = allocscreen(screen, display->white, 0); if(scr == nil) sysfatal("allocscreen: %r"); draw(screen, screen->r, display->black, nil, ZP); for(i = 0; i < NTYPES; i++) for(j = 0; j < NCOLS; j++) tabs[i]->cols[j] = allocimage(display, Rect(0, 0, 1, 1), screen->chan, 1, tabs[i]->hexcols[j]); invcol = allocimage(display, Rect(0, 0, 2, 2), screen->chan, 1, 0); draw(invcol, Rect(1, 0, 2, 1), display->white, nil, ZP); draw(invcol, Rect(0, 1, 1, 2), display->white, nil, ZP); wlist.next = wlist.prev = &wlist; flist.next = flist.prev = &flist; r = screen->r; r.max.y = r.min.y + Dy(r) / 5; cmdw = newwin(CMD, r, nil); if(cmdw == nil) sysfatal("newwin: %r"); } Win * newwin(int t, Rectangle r, File *f) { Win *w; w = emalloc(sizeof(*w)); w->next = &wlist; w->prev = wlist.prev; w->next->prev = w; w->prev->next = w; w->type = t; w->tab = tabs[t]; w->entire = r; w->inner = insetrect(r, BORDSIZ); w->im = allocwindow(scr, r, Refbackup, 0); draw(w->im, w->inner, w->tab->cols[BACK], nil, ZP); if(f != nil){ incref(f); w->wprev = f->wins.wprev; w->wnext = &f->wins; f->wins.wprev->wnext = w; f->wins.wprev = w; w->f = f; } w->tab->init(w); setfocus(w); w->tab->draw(w); return w; } Win * newwinsel(int t, Mousectl *mc, File *f) { Rectangle u; u = getrect(3, mc); if(Dx(u) < MINSIZ || Dy(u) < MINSIZ) return nil; rectclip(&u, screen->r); return newwin(t, u, f); } void winzerox(Win *w, Mousectl *mc) { Win *v; if(w->tab->zerox == nil){ cmdprint("?\n"); return; } v = newwinsel(w->type, mc, w->f); if(v == nil) return; w->tab->zerox(w, v); v->tab->draw(v); } void winclose(Win *w) { if(w->f == nil){ cmdprint("?\n"); return; } if(!decref(w->f)){ if(w->f->change > 0){ cmdprint("?\n"); incref(w->f); w->f->change = -1; return; } putfil(w->f); w->f = nil; } freeimage(w->im); if(w->f != nil){ w->wnext->wprev = w->wprev; w->wprev->wnext = w->wnext; } w->next->prev = w->prev; w->prev->next = w->next; if(w == actw) actw = nil; if(w == actf) actf = nil; free(w); } void setfocus(Win *w) { if(actw != nil) border(actw->im, actw->entire, BORDSIZ, actw->tab->cols[DISB], ZP); actw = w; if(w != cmdw) actf = w; if(w == nil) return; if(w->im == nil) sysfatal("setfocus: phase error"); topwindow(w->im); w->prev->next = w->next; w->next->prev = w->prev; w->prev = wlist.prev; w->next = &wlist; w->prev->next = w; w->next->prev = w; border(w->im, w->entire, BORDSIZ, w->tab->cols[BORD], ZP); } static Win * winpoint(Point p) { Win *w; for(w = wlist.prev; w != &wlist; w = w->prev) if(ptinrect(p, w->entire)) return w; return nil; } void winclick(Mousectl *mc) { Win *w; w = winpoint(mc->xy); if(w != nil){ if(w != actw) setfocus(w); w->tab->click(w, mc); } while((mc->buttons & 1) != 0) readmouse(mc); } Win * winsel(Mousectl *mc, int but) { extern Cursor crosscursor; int m; Win *w; m = 1 << but - 1; setcursor(mc, &crosscursor); for(;;){ readmouse(mc); if((mc->buttons & ~m) != 0){ w = nil; goto end; } if((mc->buttons & m) != 0) break; } w = winpoint(mc->xy); end: while(readmouse(mc), mc->buttons != 0) ; setcursor(mc, nil); return w; } void winresize(Win *w, Mousectl *mc) { Rectangle r; if(w == nil) return; r = getrect(3, mc); if(Dx(r) < MINSIZ || Dy(r) < MINSIZ) return; rectclip(&r, screen->r); freeimage(w->im); w->entire = r; w->inner = insetrect(r, BORDSIZ); w->im = allocwindow(scr, r, Refbackup, 0); draw(w->im, w->inner, w->tab->cols[BACK], nil, ZP); setfocus(w); w->tab->draw(w); } void resize(void) { Rectangle old, r; int dxo, dyo, dxn, dyn; Win *w; old = screen->r; dxo = Dx(old); dyo = Dy(old); if(getwindow(display, Refnone) < 0) sysfatal("resize failed: %r"); dxn = Dx(screen->r); dyn = Dy(screen->r); freescreen(scr); scr = allocscreen(screen, display->white, 0); if(scr == nil) sysfatal("allocscreen: %r"); draw(screen, screen->r, display->black, nil, ZP); for(w = wlist.next; w != &wlist; w = w->next){ r = rectsubpt(w->entire, old.min); r.min.x = muldiv(r.min.x, dxn, dxo); r.max.x = muldiv(r.max.x, dxn, dxo); r.min.y = muldiv(r.min.y, dyn, dyo); r.max.y = muldiv(r.max.y, dyn, dyo); w->entire = rectaddpt(r, screen->r.min); w->inner = insetrect(w->entire, BORDSIZ); freeimage(w->im); w->im = allocwindow(scr, w->entire, Refbackup, 0); if(w->im == nil) sysfatal("allocwindow: %r"); draw(w->im, w->inner, w->tab->cols[BACK], nil, ZP); border(w->im, w->entire, BORDSIZ, w->tab->cols[w == actw ? BORD : DISB], ZP); w->tab->draw(w); } } extern Wintab cmdtab, paltab, sprtab; Wintab *tabs[] = { [CMD] &cmdtab, [PAL] &paltab, [SPR] &sprtab, };