void
drawtree(Tree *t, Image *m, Rectangle r)
{
Point p;
draw(m, r, display->white, nil, ZP);
replclipr(t->clipr, 1, r);
p = addpt(t->offset, r.min);
drawnode(t->root, m, t->clipr, p);
}
static void
tkmkstipple(Image *stipple)
{
int locked;
if (stipple != nil && !stipple->repl) {
locked = lockdisplay(stipple->display);
replclipr(stipple, 1, huger);
if (locked)
unlockdisplay(stipple->display);
}
}
static char*
tkdrawslaves1(Tk *tk, Point orig, Image *dst, int *dirty)
{
Tk *f;
char *e = nil;
Point worig;
Rectangle r, oclip;
worig.x = orig.x + tk->act.x + tk->borderwidth;
worig.y = orig.y + tk->act.y + tk->borderwidth;
r = rectaddpt(tk->dirty, worig);
if (Dx(r) > 0 && rectXrect(r, dst->clipr)) {
e = tkmethod[tk->type]->draw(tk, orig);
tk->dirty = bbnil;
*dirty = 1;
}
if(e != nil)
return e;
/*
* grids need clipping
* XXX BUG: they can't, 'cos text widgets don't clip appropriately.
*/
if (tk->grid != nil) {
r = rectaddpt(tkrect(tk, 0), worig);
if (rectclip(&r, dst->clipr) == 0)
return nil;
oclip = dst->clipr;
replclipr(dst, 0, r);
}
for(f = tk->slave; e == nil && f; f = f->next)
e = tkdrawslaves1(f, worig, dst, dirty);
if (tk->grid != nil)
replclipr(dst, 0, oclip);
return e;
}
void
allocimages(void)
{
Rectangle one = Rect(0, 0, 1, 1);
selected = eallocimage(one, 1, RGBA32, setalpha(DPalebluegreen, 0x5f));
litbrdr = eallocimage(one, 1, RGBA32, DGreen);
img = eallocimage(Rect(0, 0, Sizex, Sizey), 0,
defchan? defchan: screen->chan, DBlack);
textcol = eallocimage(one, 1, RGBA32, DWhite);
background = eloadfile(defbackgr);
replclipr(background, 1, img->r);
mask = eloadfile(Mask);
gameover = eloadfile(Gameover);
tileset = eloadfile(deftileset);
}
int
menuhit(int but, Mousectl *mc, Menu *menu, Screen *scr)
{
int i, nitem, nitemdrawn, maxwid, lasti, off, noff, wid, screenitem;
int scrolling;
Rectangle r, menur, sc, textr, scrollr;
Image *b, *save, *backup;
Point pt;
char *item;
if(back == nil)
menucolors();
sc = screen->clipr;
replclipr(screen, 0, screen->r);
maxwid = 0;
for(nitem = 0;
item = menu->item? menu->item[nitem] : (*menu->gen)(nitem);
nitem++){
i = stringwidth(font, item);
if(i > maxwid)
maxwid = i;
}
if(menu->lasthit<0 || menu->lasthit>=nitem)
menu->lasthit = 0;
screenitem = (Dy(screen->r)-10)/(font->height+Vspacing);
if(nitem>Maxunscroll || nitem>screenitem){
scrolling = 1;
nitemdrawn = Nscroll;
if(nitemdrawn > screenitem)
nitemdrawn = screenitem;
wid = maxwid + Gap + Scrollwid;
off = menu->lasthit - nitemdrawn/2;
if(off < 0)
off = 0;
if(off > nitem-nitemdrawn)
off = nitem-nitemdrawn;
lasti = menu->lasthit-off;
}else{
scrolling = 0;
nitemdrawn = nitem;
wid = maxwid;
off = 0;
lasti = menu->lasthit;
}
r = insetrect(Rect(0, 0, wid, nitemdrawn*(font->height+Vspacing)), -Margin);
r = rectsubpt(r, Pt(wid/2, lasti*(font->height+Vspacing)+font->height/2));
r = rectaddpt(r, mc->m.xy);
pt = ZP;
if(r.max.x>screen->r.max.x)
pt.x = screen->r.max.x-r.max.x;
if(r.max.y>screen->r.max.y)
pt.y = screen->r.max.y-r.max.y;
if(r.min.x<screen->r.min.x)
pt.x = screen->r.min.x-r.min.x;
if(r.min.y<screen->r.min.y)
pt.y = screen->r.min.y-r.min.y;
menur = rectaddpt(r, pt);
textr.max.x = menur.max.x-Margin;
textr.min.x = textr.max.x-maxwid;
textr.min.y = menur.min.y+Margin;
textr.max.y = textr.min.y + nitemdrawn*(font->height+Vspacing);
if(scrolling){
scrollr = insetrect(menur, Border);
scrollr.max.x = scrollr.min.x+Scrollwid;
}else
scrollr = Rect(0, 0, 0, 0);
if(scr){
b = allocwindow(scr, menur, Refbackup, DWhite);
if(b == nil)
b = screen;
backup = nil;
}else{
b = screen;
backup = allocimage(display, menur, screen->chan, 0, -1);
if(backup)
draw(backup, menur, screen, nil, menur.min);
}
draw(b, menur, back, nil, ZP);
border(b, menur, Blackborder, bord, ZP);
save = allocimage(display, menurect(textr, 0), screen->chan, 0, -1);
r = menurect(textr, lasti);
moveto(mc, divpt(addpt(r.min, r.max), 2));
menupaint(b, menu, textr, off, nitemdrawn);
if(scrolling)
menuscrollpaint(b, scrollr, off, nitem, nitemdrawn);
while(mc->m.buttons & (1<<(but-1))){
lasti = menuscan(b, menu, but, mc, textr, off, lasti, save);
if(lasti >= 0)
break;
while(!ptinrect(mc->m.xy, textr) && (mc->m.buttons & (1<<(but-1)))){
if(scrolling && ptinrect(mc->m.xy, scrollr)){
noff = ((mc->m.xy.y-scrollr.min.y)*nitem)/Dy(scrollr);
noff -= nitemdrawn/2;
if(noff < 0)
noff = 0;
if(noff > nitem-nitemdrawn)
noff = nitem-nitemdrawn;
if(noff != off){
off = noff;
menupaint(b, menu, textr, off, nitemdrawn);
menuscrollpaint(b, scrollr, off, nitem, nitemdrawn);
}
}
readmouse(mc);
}
}
if(b != screen)
freeimage(b);
if(backup){
draw(screen, menur, backup, nil, menur.min);
freeimage(backup);
}
freeimage(save);
replclipr(screen, 0, sc);
flushimage(display, 1);
if(lasti >= 0){
menu->lasthit = lasti+off;
return menu->lasthit;
}
return -1;
}
int
eenter(char *ask, char *buf, int len, Mouse *m)
{
int done, down, tick, n, h, w, l, i;
Image *b, *save, *backcol, *bordcol;
Point p, o, t;
Rectangle r, sc;
Event ev;
Rune k;
o = screen->r.min;
backcol = allocimagemix(display, DPurpleblue, DWhite);
bordcol = allocimage(display, Rect(0,0,1,1), screen->chan, 1, DPurpleblue);
if(backcol == nil || bordcol == nil)
return -1;
while(ecankbd())
ekbd();
if(m) o = m->xy;
if(buf && len > 0)
n = strlen(buf);
else {
buf = nil;
len = 0;
n = 0;
}
k = -1;
tick = n;
save = nil;
done = down = 0;
p = stringsize(font, " ");
h = p.y;
w = p.x;
b = screen;
sc = b->clipr;
replclipr(b, 0, b->r);
while(!done){
p = stringsize(font, buf ? buf : "");
if(ask && ask[0]){
if(buf) p.x += w;
p.x += stringwidth(font, ask);
}
r = rectaddpt(insetrect(Rpt(ZP, p), -4), o);
p.x = 0;
r = rectsubpt(r, p);
p = ZP;
if(r.min.x < screen->r.min.x)
p.x = screen->r.min.x - r.min.x;
if(r.min.y < screen->r.min.y)
p.y = screen->r.min.y - r.min.y;
r = rectaddpt(r, p);
p = ZP;
if(r.max.x > screen->r.max.x)
p.x = r.max.x - screen->r.max.x;
if(r.max.y > screen->r.max.y)
p.y = r.max.y - screen->r.max.y;
r = rectsubpt(r, p);
r = insetrect(r, -2);
if(save == nil){
save = allocimage(display, r, b->chan, 0, DNofill);
if(save == nil){
n = -1;
break;
}
draw(save, r, b, nil, r.min);
}
draw(b, r, backcol, nil, ZP);
border(b, r, 2, bordcol, ZP);
p = addpt(r.min, Pt(6, 6));
if(ask && ask[0]){
p = string(b, p, bordcol, ZP, font, ask);
if(buf) p.x += w;
}
if(buf){
t = p;
p = stringn(b, p, display->black, ZP, font, buf, utfnlen(buf, tick));
draw(b, Rect(p.x-1, p.y, p.x+2, p.y+3), display->black, nil, ZP);
draw(b, Rect(p.x, p.y, p.x+1, p.y+h), display->black, nil, ZP);
draw(b, Rect(p.x-1, p.y+h-3, p.x+2, p.y+h), display->black, nil, ZP);
p = string(b, p, display->black, ZP, font, buf+tick);
}
flushimage(display, 1);
nodraw:
i = Ekeyboard;
if(m != nil)
i |= Emouse;
replclipr(b, 0, sc);
i = eread(i, &ev);
/* screen might have been resized */
if(b != screen || !eqrect(screen->clipr, sc)){
freeimage(save);
save = nil;
}
b = screen;
sc = b->clipr;
replclipr(b, 0, b->r);
switch(i){
default:
done = 1;
n = -1;
break;
case Ekeyboard:
k = ev.kbdc;
if(buf == nil || k == Keof || k == '\n'){
done = 1;
break;
}
if(k == Knack || k == Kesc){
done = !n;
buf[n = tick = 0] = 0;
break;
}
if(k == Ksoh || k == Khome){
tick = 0;
continue;
}
if(k == Kenq || k == Kend){
tick = n;
continue;
}
if(k == Kright){
if(tick < n)
tick += chartorune(&k, buf+tick);
continue;
}
if(k == Kleft){
for(i = 0; i < n; i += l){
l = chartorune(&k, buf+tick);
if(i+l >= tick){
tick = i;
break;
}
}
continue;
}
if(k == Ketb){
while(tick > 0){
tick--;
if(tick == 0 ||
strchr(" !\"#$%&'()*+,-./:;<=>?@`[\\]^{|}~", buf[tick-1]))
break;
}
buf[n = tick] = 0;
break;
}
if(k == Kbs){
if(tick <= 0)
continue;
for(i = 0; i < n; i += l){
l = chartorune(&k, buf+i);
if(i+l >= tick){
memmove(buf+i, buf+i+l, n - (i+l));
buf[n -= l] = 0;
tick -= l;
break;
}
}
break;
}
if(k < 0x20 || k == Kdel || (k & 0xFF00) == KF || (k & 0xFF00) == Spec)
continue;
if((len-n) <= (l = runelen(k)))
continue;
memmove(buf+tick+l, buf+tick, n - tick);
runetochar(buf+tick, &k);
buf[n += l] = 0;
tick += l;
break;
case Emouse:
*m = ev.mouse;
if(!ptinrect(m->xy, r)){
down = 0;
goto nodraw;
}
if(m->buttons & 7){
down = 1;
if(buf && m->xy.x >= (t.x - w)){
down = 0;
for(i = 0; i < n; i += l){
l = chartorune(&k, buf+i);
t.x += stringnwidth(font, buf+i, 1);
if(t.x > m->xy.x)
break;
}
tick = i;
}
continue;
}
done = down;
break;
}
if(save){
draw(b, save->r, save, nil, save->r.min);
freeimage(save);
save = nil;
}
}
replclipr(b, 0, sc);
freeimage(backcol);
freeimage(bordcol);
flushimage(display, 1);
return n;
}
char*
tkdrawcanv(Tk *tk, Point orig)
{
Image *dst;
TkCitem *i;
Display *d;
TkCanvas *c;
Rectangle r, bufr, oclipr;
int vis, alpha, buffer;
Point rel, p;
TkCimeth *imeth;
c = TKobj(TkCanvas, tk);
d = tk->env->top->display;
dst = tkimageof(tk);
/*
* translation from local to screen coords
*/
rel.x = orig.x + tk->act.x + tk->borderwidth;
rel.y = orig.y + tk->act.y + tk->borderwidth;
buffer = c->buffer;
if (buffer == TkCbufauto)
buffer = TkCbufvisible;
/* buffer = (dst == TKobj(TkWin, tk->env->top->root)->image) ? TkCbufvisible : TkCbufnone; */
if (buffer == TkCbufnone) {
if(c->image != nil && c->ialloc)
freeimage(c->image);
c->image = dst;
c->ialloc = 0;
r = tkrect(tk, 0);
bufr = r;
rectclip(&bufr, tk->dirty);
oclipr = dst->clipr;
replclipr(dst, 0, rectaddpt(bufr, rel));
draw(dst, rectaddpt(bufr, rel), tkgc(tk->env, TkCbackgnd), nil, ZP);
p = subpt(rel, c->view);
p.x = TKI2F(p.x);
p.y = TKI2F(p.y);
bufr = rectaddpt(bufr, c->view);
for(i = c->head; i; i = i->next) {
if(rectXrect(i->p.bb, bufr)) {
imeth = &tkcimethod[i->type];
imeth->coord(i, nil, p.x, p.y);
imeth->draw(dst, i, tk->env);
imeth->coord(i, nil, -p.x, -p.y);
}
}
replclipr(dst, 0, oclipr);
} else {
if (c->buffer == TkCbufall)
bufr = c->region;
else {
bufr.min = c->view;
bufr.max.x = c->view.x + tk->act.width;
bufr.max.y = c->view.y + tk->act.height;
}
alpha = (tk->env->colors[TkCbackgnd] & 0xff) != 0xff;
if(c->image == nil || eqrect(bufr, c->image->r) == 0) {
if(c->image != nil && c->ialloc)
freeimage(c->image);
c->image = allocimage(d, bufr, alpha?RGBA32:d->image->chan, 0, tk->env->colors[TkCbackgnd]);
c->ialloc = 1;
c->update = bufr;
tkcvssetdirty(tk); /* unnecessary? */
}
if(c->image == nil)
return nil;
r = c->update;
if (rectclip(&r, c->image->r)) {
if (alpha)
drawop(c->image, c->update, nil, nil, ZP, Clear);
draw(c->image, c->update, tkgc(tk->env, TkCbackgnd), nil, c->view);
replclipr(c->image, 0, r);
for(i = c->head; i; i = i->next) {
if(rectXrect(i->p.bb, r))
tkcimethod[i->type].draw(c->image, i, tk->env);
}
replclipr(c->image, 0, c->image->r);
}
/*
* if the visible area of the canvas image doesn't
* fit completely within the dirty rectangle,
* then we'll need to draw the background behind it
*/
r = tkrect(tk, 0);
bufr = rectsubpt(bufr, c->view);
vis = rectclip(&bufr, tkrect(tk, 0));
if (!vis || !rectinrect(tk->dirty, bufr))
draw(dst, rectaddpt(tk->dirty, rel), tkgc(tk->env, TkCbackgnd), nil, c->view);
if (vis && rectclip(&bufr, tk->dirty))
draw(dst, rectaddpt(bufr, rel), c->image, nil, addpt(bufr.min, c->view));
}
/*
* if the border is dirty too, then draw that
*/
if (!rectinrect(tk->dirty, bufr)) {
r.min = addpt(r.min, rel);
r.min.x -= tk->borderwidth;
r.min.y -= tk->borderwidth;
tkdrawrelief(dst, tk, r.min, TkCbackgnd, tk->relief);
}
c->update = bbnil;
return nil;
}
