void MenuBar::updateLayout(void)
{
//Determine the Max Preferred Height of my MenuItems
Real32 MaxHeight(0);
Real32 TotalWidth(0);
for(UInt32 i(0) ; i<getMFChildren()->size() ; ++i)
{
if(MaxHeight < getChildren(i)->getPreferredSize().y())
{
MaxHeight = getChildren(i)->getPreferredSize().y();
}
TotalWidth += getChildren(i)->getPreferredSize().x();
}
//Set My preferred Size
Pnt2f TopLeft, BottomRight;
Pnt2f InsetsTopLeft, InsetsBottomRight;
getBounds(TopLeft, BottomRight);
getInsideInsetsBounds(InsetsTopLeft, InsetsBottomRight);
Vec2f InsetSize( (BottomRight-TopLeft) - (InsetsBottomRight-InsetsTopLeft) );
Vec2f NewSize( TotalWidth+InsetSize.x(), MaxHeight+InsetSize.y());
if(getPreferredSize() != NewSize)
{
setPreferredSize(NewSize);
}
getInsideInsetsBounds(InsetsTopLeft, InsetsBottomRight);
//Now position and size the Items
Real32 LeftOffset(InsetsTopLeft.x());
Vec2f Size;
Pnt2f Pos;
for(UInt32 i(0) ; i<getMFChildren()->size() ; ++i)
{
Size.setValues(getChildren(i)->getPreferredSize().x(), MaxHeight);
if(getChildren(i)->getSize() != Size)
{
getChildren(i)->setSize(Size);
}
Pos.setValues(LeftOffset, InsetsTopLeft.y());
if(getChildren(i)->getPosition() != Pos)
{
getChildren(i)->setPosition(Pos);
}
LeftOffset += getChildren(i)->getPreferredSize().x();
}
}
static void
GetDefaultPosition(
Widget child,
Widget parent,
Position *xRtn,
Position *yRtn )
{
Display *disp;
int max_w, max_h;
Position x, y;
x = HALFDIFF(XtWidth(parent), XtWidth(child));
y = HALFDIFF(XtHeight(parent), XtHeight(child));
/*
* find root co-ords of the parent's center
*/
if (XtIsRealized (parent))
XtTranslateCoords(parent, x, y, &x, &y);
/*
* try to keep the popup from dribbling off the display
*/
disp = XtDisplay (child);
max_w = DisplayWidth (disp, DefaultScreen (disp));
max_h = DisplayHeight (disp, DefaultScreen (disp));
if ((x + (int)TotalWidth (child)) > max_w)
x = max_w - TotalWidth (child);
if ((y + (int)TotalHeight (child)) > max_h)
y = max_h - TotalHeight (child);
if (x < 0) x = 0;
if (y < 0) y = 0;
*xRtn = x;
*yRtn = y;
}