rect makerect(point p1, point p2) { /* make a rectangle from two points */
rect r;
r.pt1 = p1;
r.pt2 = p2;
return canonrect(r);
}
int main()
{
struct rect screen;
screen.pt1 = makepoint(7, 1);
screen.pt2 = makepoint(3, 10);
struct rect canonscreen = canonrect(screen);
printf("canon screen: (x1=%d, y1=%d), (x2=%d, y2=%d)\n", canonscreen.pt1.x, canonscreen.pt1.y, canonscreen.pt2.x, canonscreen.pt2.y);
struct point inpoint = makepoint(4, 5);
printf("point (%d, %d) in screen: %d\n", inpoint.x, inpoint.y, ptinrect(inpoint, canonscreen));
struct point outpoint = makepoint(-1, -7);
printf("point (%d, %d) out of screen: %d\n", outpoint.x, outpoint.y, ptinrect(outpoint, canonscreen));
return 0;
}
Rectangle
rdbbox(char *p)
{
Rectangle r;
int a;
char *f[4];
while(*p == ':' || *p == ' ' || *p == '\t')
p++;
if(tokenize(p, f, 4) != 4)
return Rect(0,0,0,0);
r = Rect(atoi(f[0]), atoi(f[1]), atoi(f[2]), atoi(f[3]));
r = canonrect(r);
if(Dx(r) <= 0 || Dy(r) <= 0)
return Rect(0,0,0,0);
if(truetoboundingbox)
return r;
/* initdraw not called yet, can't use %R */
if(chatty) fprint(2, "[%d %d %d %d] -> ", R(r));
/*
* attempt to sniff out A4, 8½×11, others
* A4 is 596×842
* 8½×11 is 612×792
*/
a = Dx(r)*Dy(r);
if(a < 300*300){ /* really small, probably supposed to be */
/* empty */
} else if(Dx(r) <= 596 && r.max.x <= 596 && Dy(r) > 792 && Dy(r) <= 842 && r.max.y <= 842) /* A4 */
r = Rect(0, 0, 596, 842);
else { /* cast up to 8½×11 */
if(Dx(r) <= 612 && r.max.x <= 612){
r.min.x = 0;
r.max.x = 612;
}
if(Dy(r) <= 792 && r.max.y <= 792){
r.min.y = 0;
r.max.y = 792;
}
}
if(chatty) fprint(2, "[%d %d %d %d]\n", R(r));
return r;
}
static char*
tkcvssee(Tk *tk, char *arg, char **val)
{
Rectangle r;
int n, coords[4];
char *e;
USED(val);
n = 0;
while (n < 4) {
if (*arg == '\0')
break;
e = tkfracword(tk->env->top, &arg, &coords[n++], nil);
if (e != nil)
return e;
}
if (n != 2 && n != 4)
return TkFewpt;
r.min.x = TKF2I(coords[0]);
r.min.y = TKF2I(coords[1]);
if (n == 4) {
r.max.x = TKF2I(coords[2]);
r.max.y = TKF2I(coords[3]);
} else
r.max = r.min;
r = canonrect(r);
/*
* XXX should intersect r with scrollregion here, as you shouldn't
* be able to display things outside the scroll region. (??)
*/
tkcvsseerect(tk, r, r.min);
return nil;
}
static void
groupmouse(Control *c, Mouse *m)
{
Group *g;
int i, lastkid;
g = (Group*)c;
if (g->type == Ctlstack){
i = g->selected;
if (i >= 0 && g->kids[i]->mouse &&
( ( ((m->buttons == 0) || (g->lastbut == 0)) &&
ptinrect(m->xy, g->kids[i]->rect) ) ||
( ((m->buttons != 0) || (g->lastbut != 0)) &&
(g->lastkid == i) ) ) ) {
if (debugm) fprint(2, "groupmouse %s mouse kid %s i=%d lastkid=%d buttons=%d lastbut=%d inrect=%d\n",
g->name, g->kids[i]->name, i, g->lastkid, m->buttons, g->lastbut,
ptinrect(m->xy, g->kids[i]->rect) ? 1 : 0);
(g->kids[i]->mouse)(g->kids[i], m);
g->lastkid = i;
g->lastbut = m->buttons;
} else {
if (debugm) fprint(2, "groupmouse %s skip kid %s i=%d lastkid=%d buttons=%d lastbut=%d inrect=%d\n",
g->name, g->kids[i]->name, i, g->lastkid, m->buttons, g->lastbut,
ptinrect(m->xy, g->kids[i]->rect) ? 1 : 0);
}
return;
}
lastkid = -1;
for(i=0; i<g->nkids; i++) {
if(g->kids[i]->mouse &&
( ( ((m->buttons == 0) || (g->lastbut == 0)) &&
ptinrect(m->xy, g->kids[i]->rect) ) ||
( ((m->buttons != 0) || (g->lastbut != 0)) &&
(g->lastkid == i) ) ) ) {
if (debugm) fprint(2, "groupmouse %s mouse kid %s i=%d lastkid=%d buttons=%d lastbut=%d inrect=%d\n",
g->name, g->kids[i]->name, i, g->lastkid, m->buttons, g->lastbut,
ptinrect(m->xy, g->kids[i]->rect) ? 1 : 0);
(g->kids[i]->mouse)(g->kids[i], m);
lastkid = i;
} else {
if (debugm) fprint(2, "groupmouse %s skip kid %s i=%d lastkid=%d buttons=%d lastbut=%d inrect=%d\n",
g->name, g->kids[i]->name, i, g->lastkid, m->buttons, g->lastbut,
ptinrect(m->xy, g->kids[i]->rect) ? 1 : 0);
}
}
g->lastkid = lastkid;
g->lastbut = m->buttons;
#ifdef notdef
if(m->buttons == 0){
/* buttons now up */
g->lastbut = 0;
return;
}
if(g->lastbut == 0 && m->buttons != 0){
/* button went down, start tracking border */
switch(g->stacking){
default:
return;
case Vertical:
p = Pt(m->xy.x, middle_of_border.y);
p0 = Pt(g->r.min.x, m->xy.y);
p1 = Pt(g->r.max.x, m->xy.y);
break;
case Horizontal:
p = Pt(middle_of_border.x, m->xy.y);
p0 = Pt(m->xy.x, g->r.min.y);
p1 = Pt(m->xy.x, g->r.max.y);
break;
}
// setcursor();
oi = nil;
} else if (g->lastbut != 0 && s->m.buttons != 0){
/* button is down, keep tracking border */
if(!eqpt(s->m.xy, p)){
p = onscreen(s->m.xy);
r = canonrect(Rpt(p0, p));
if(Dx(r)>5 && Dy(r)>5){
i = allocwindow(wscreen, r, Refnone, 0xEEEEEEFF); /* grey */
freeimage(oi);
if(i == nil)
goto Rescue;
oi = i;
border(i, r, Selborder, red, ZP);
flushimage(display, 1);
}
}
} else if (g->lastbut != 0 && s->m.buttons == 0){
/* button went up, resize kiddies */
}
g->lastbut = s->m.buttons;
#endif
}
