void ResizeLayersToCanvases()
{
Canvas *cv;
Layer *l;
int lx, ly;
D_kaablamm = 0;
for (cv = D_cvlist; cv; cv = cv->c_next) {
l = cv->c_layer;
if (l == 0)
continue;
if (l->l_width == cv->c_xe - cv->c_xs + 1 && l->l_height == cv->c_ye - cv->c_ys + 1) {
continue;
}
if (MayResizeLayer(l)) {
ResizeLayer(l, cv->c_xe - cv->c_xs + 1, cv->c_ye - cv->c_ys + 1, display);
}
/* normalize window, see screen.c */
lx = cv->c_layer->l_x;
ly = cv->c_layer->l_y;
if (ly + cv->c_yoff < cv->c_ys) {
cv->c_yoff = cv->c_ys - ly;
RethinkViewportOffsets(cv);
} else if (ly + cv->c_yoff > cv->c_ye) {
cv->c_yoff = cv->c_ye - ly;
RethinkViewportOffsets(cv);
}
if (lx + cv->c_xoff < cv->c_xs) {
int n = cv->c_xs - (lx + cv->c_xoff);
if (n < (cv->c_xe - cv->c_xs + 1) / 2)
n = (cv->c_xe - cv->c_xs + 1) / 2;
if (cv->c_xoff + n > cv->c_xs)
n = cv->c_xs - cv->c_xoff;
cv->c_xoff += n;
RethinkViewportOffsets(cv);
} else if (lx + cv->c_xoff > cv->c_xe) {
int n = lx + cv->c_xoff - cv->c_xe;
if (n < (cv->c_xe - cv->c_xs + 1) / 2)
n = (cv->c_xe - cv->c_xs + 1) / 2;
if (cv->c_xoff - n + cv->c_layer->l_width - 1 < cv->c_xe)
n = cv->c_xoff + cv->c_layer->l_width - 1 - cv->c_xe;
cv->c_xoff -= n;
RethinkViewportOffsets(cv);
}
}
Redisplay(0);
if (D_kaablamm) {
kaablamm();
D_kaablamm = 0;
}
}
void SetCanvasWindow(struct canvas *cv, struct win *win)
{
struct win *p = 0, **pp;
struct layer *l;
struct canvas *cvp, **cvpp;
l = cv->c_layer;
display = cv->c_display;
if (l) {
/* remove old layer */
for (cvpp = &l->l_cvlist; (cvp = *cvpp); cvpp = &cvp->c_lnext)
if (cvp == cv)
break;
ASSERT(cvp);
*cvpp = cvp->c_lnext;
p = Layer2Window(l);
l = cv->c_layer;
cv->c_layer = 0;
if (p && cv == D_forecv) {
if (p->w_silence) {
SetTimeout(&p->w_silenceev, p->w_silencewait * 1000);
evenq(&p->w_silenceev);
}
D_other = fore;
D_fore = 0;
}
if (l->l_cvlist == 0 && (p == 0 || l != p->w_savelayer))
KillLayerChain(l);
}
/* find right layer to display on canvas */
if (win && win->w_type != W_TYPE_GROUP) {
l = &win->w_layer;
if (win->w_savelayer && (win->w_blocked || win->w_savelayer->l_cvlist == 0))
l = win->w_savelayer;
} else {
l = &cv->c_blank;
if (win)
l->l_data = (char *)win;
else
l->l_data = 0;
}
/* add our canvas to the layer's canvaslist */
ASSERT(l->l_cvlist != cv);
cv->c_lnext = l->l_cvlist;
l->l_cvlist = cv;
cv->c_layer = l;
cv->c_xoff = cv->c_xs;
cv->c_yoff = cv->c_ys;
RethinkViewportOffsets(cv);
if (flayer == 0)
flayer = l;
if (win && win->w_type == W_TYPE_GROUP) {
/* auto-start windowlist on groups */
struct display *d = display;
struct layer *oldflayer = flayer;
flayer = l;
display_windows(0, 0, win);
flayer = oldflayer;
display = d;
}
if (win && D_other == win)
D_other = win->w_next; /* Might be 0, but that's OK. */
if (cv == D_forecv) {
D_fore = win;
fore = D_fore; /* XXX ? */
if (win) {
/*
* Place the window at the head of the most-recently-used list
*/
if (windows != win) {
for (pp = &windows; (p = *pp); pp = &p->w_next)
if (p == win)
break;
ASSERT(p);
*pp = p->w_next;
p->w_next = windows;
windows = p;
WListLinkChanged();
}
}
}
}
