/*
* Internal process context used to control the screen for use by
* the menu manager, and the window manager.
* This process never terminates and forms an integral part of
* the system.
*/
void ctlmgr(void)
{
WORD ev_which;
WORD rets[6];
WORD i, wh;
/*
* set defaults for multi wait
*/
gl_ctwait.m_out = FALSE;
rc_copy(&gl_rmenu, (GRECT *)&gl_ctwait.m_x);
while(TRUE)
{
/* fix up ctrl rect */
w_setactive();
/*
* wait for something to happen, keys need to be eaten
* inc. fake key sent by ... or if button already down,
* then let other guys run then do it
*/
if (button)
{
for (i = 0; i < (totpds*2); i++)
dsptch();
ev_which = MU_BUTTON;
rets[0] = xrat;
rets[1] = yrat;
}
else
{
ev_which = MU_KEYBD | MU_BUTTON;
if ( gl_mntree != 0x0L ) /* only wait on bar when there */
ev_which |= MU_M1; /* is a menu */
ev_which = ev_multi(ev_which, &gl_ctwait, &gl_ctwait,
0x0L, 0x0001ff01L, 0x0L, rets);
}
ct_mouse(TRUE); /* grab screen sink */
/*
* button down over area ctrl mgr owns. find out which
* window the mouse clicked over and handle it
*/
if (ev_which & MU_BUTTON)
{
wh = wm_find(rets[0], rets[1]);
if (wh > 0)
hctl_window( wh, rets[0], rets[1] );
}
/* mouse over menu bar */
if (ev_which & MU_M1)
hctl_rect();
ct_mouse(FALSE); /* give up screen sink */
}
}
void draw_change(WORD w_handle, GRECT *pt)
{
GRECT c, pprev;
register GRECT *pw;
register WORD start;
WORD stop, moved;
WORD oldtop, clrold, diffbord, wasclr;
wasclr = !(D.w_win[w_handle].w_flags & VF_BROKEN);
/* save old size */
w_getsize(WS_CURR, w_handle, &c);
w_setsize(WS_PREV, w_handle, &c);
/* set new size's */
w_setsize(WS_CURR, w_handle, pt);
pw = (GRECT *) w_getxptr(WS_WORK, w_handle);
wm_calc(WC_WORK, D.w_win[w_handle].w_kind,
pt->g_x, pt->g_y, pt->g_w, pt->g_h,
&pw->g_x, &pw->g_y, &pw->g_w, &pw->g_h);
/* update rect. lists */
everyobj(gl_wtree, ROOT, NIL, (void(*)())newrect, 0, 0, MAX_DEPTH);
/* remember oldtop */
oldtop = gl_wtop;
gl_wtop = W_TREE[ROOT].ob_tail;
/* if new top then */
/* change men */
if (gl_wtop != oldtop)
w_menufix();
/* set ctrl rect and */
/* mouse owner */
w_setactive();
/* init. starting window*/
start = w_handle;
/* stop at the top */
stop = DESKWH;
/* set flag to say we */
/* haven't moved */
/* the top window */
moved = FALSE;
/* if same upper left */
/* corner and not */
/* zero size window */
/* then its a size or */
/* top request, else */
/* its a move, grow, */
/* open or close. */
if ( (!rc_equal(&gl_rzero, pt)) &&
(pt->g_x == c.g_x) &&
(pt->g_y == c.g_y) )
{
/* size or top request */
if ( (pt->g_w == c.g_w) && (pt->g_h == c.g_h) )
{
/* sizes of prev and */
/* current are the same*/
/* so its a top request*/
/* return if this isn't */
/* a top request */
if ( (w_handle != W_TREE[ROOT].ob_tail) ||
(w_handle == oldtop) )
return;
/* say when borders will*/
/* change */
diffbord = !( (D.w_win[oldtop].w_flags & VF_SUBWIN) &&
(D.w_win[gl_wtop].w_flags & VF_SUBWIN) );
/* draw oldtop covered */
/* with deactivated */
/* borders */
if (oldtop != NIL)
{
if (diffbord)
w_clipdraw(oldtop, 0, MAX_DEPTH, 2);
clrold = !(D.w_win[oldtop].w_flags & VF_BROKEN);
}
else
clrold = TRUE;
/* if oldtop isn't */
/* overlapped and new */
/* top was clear then */
/* just draw activated*/
/* borders */
if ( (clrold) &&
(wasclr) )
{
w_clipdraw(gl_wtop, 0, MAX_DEPTH, 1);
return;
}
}
else
/* size change */
{
/* stop before current */
/* window if shrink */
/* was a pure subset */
if ( (pt->g_w <= c.g_w) && (pt->g_h <= c.g_h) )
{
stop = w_handle;
w_clipdraw(gl_wtop, 0, MAX_DEPTH, 2);
moved = TRUE;
}
/* start at bottom if */
/* a shrink occurred */
if ( (pt->g_w < c.g_w) || (pt->g_h < c.g_h) )
start = DESKWH;
/* update rect. is the */
/* union of two sizes */
/* + the drop shadow */
c.g_w = max(pt->g_w, c.g_w) + 2;
c.g_h = max(pt->g_h, c.g_h) + 2;
}
}
else
{
/* move or grow or open */
/* or close */
if ( !(c.g_w && c.g_h) ||
( (pt->g_x <= c.g_x) &&
(pt->g_y <= c.g_y) &&
(pt->g_x+pt->g_w >= c.g_x+c.g_w) &&
(pt->g_y+pt->g_h >= c.g_y+c.g_h)))
{
/* a grow that is a */
/* superset or an open */
rc_copy(pt, &c);
}
else
{
/* move, close or shrink*/
/* do a move of top guy */
if ( (pt->g_w == c.g_w) &&
(pt->g_h == c.g_h) &&
(gl_wtop == w_handle) )
{
moved = w_move(w_handle, &stop, &c);
start = DESKWH;
}
/* check for a close */
if ( !(pt->g_w && pt->g_h) )
start = DESKWH;
/* handle other moves */
/* and shrinks */
if ( start != DESKWH )
{
rc_union(pt, &c);
if ( !rc_equal(pt, &c) )
start = DESKWH;
}
}
}
/* update gl_wtop */
/* after close, */
/* or open */
if ( oldtop != W_TREE[ROOT].ob_tail )
{
if (gl_wtop != NIL)
{
/* open or close with */
/* other windows open */
w_getsize(WS_CURR, gl_wtop, pt);
rc_union(pt, &c);
/* if it was an open */
/* then draw the */
/* old top guy */
/* covered */
if ( (oldtop != NIL ) &&
(oldtop != w_handle) )
{
/* BUGFIX 2/20/86 LKW */
/* only an open if prev */
/* size was zero. */
w_getsize(WS_PREV, gl_wtop, &pprev);
if (rc_equal(&pprev, &gl_rzero))
w_clipdraw(oldtop, 0, MAX_DEPTH, 2); /* */
}
}
}
c.g_w += 2; /* account for drop shadow*/
c.g_h += 2; /* BUGFIX in 2.1 */
/* update the desktop */
/* background */
if (start == DESKWH)
w_drawdesk(&c);
/* start the redrawing */
w_update(start, &c, stop, moved, TRUE);
}
