public final void runComponents(Component[] comps, Graphics g, int weightFlags) {
int ncomponents = comps.length;
Shape clip = g.getClip();
if (log.isLoggable(PlatformLogger.Level.FINER) && (clip != null)) {
Rectangle newrect = clip.getBounds();
log.finer(
"x = "
+ newrect.x
+ ", y = "
+ newrect.y
+ ", width = "
+ newrect.width
+ ", height = "
+ newrect.height);
}
// A seriously sad hack--
// Lightweight components always paint behind peered components,
// even if they are at the top of the Z order. We emulate this
// behavior by making two printing passes: the first for lightweights;
// the second for heavyweights.
//
// ToDo(dpm): Either build a list of heavyweights during the
// lightweight pass, or redesign the components array to keep
// lightweights and heavyweights separate.
if ((weightFlags & TWO_PASSES) != 0) {
for (int i = ncomponents - 1; i >= 0; i--) {
runOneComponent(comps[i], null, g, clip, LIGHTWEIGHTS);
}
for (int i = ncomponents - 1; i >= 0; i--) {
runOneComponent(comps[i], null, g, clip, HEAVYWEIGHTS);
}
} else {
for (int i = ncomponents - 1; i >= 0; i--) {
runOneComponent(comps[i], null, g, clip, weightFlags);
}
}
}
/**
* Adjusts the allocation given to the view to be a suitable allocation for a text field. If the
* view has been allocated more than the preferred span vertically, the allocation is changed to
* be centered vertically. Horizontally the view is adjusted according to the horizontal alignment
* property set on the associated JTextField (if that is the type of the hosting component).
*
* @param a the allocation given to the view, which may need to be adjusted.
* @return the allocation that the superclass should use.
*/
protected Shape adjustAllocation(Shape a) {
if (a != null) {
Rectangle bounds = a.getBounds();
int vspan = (int) getPreferredSpan(Y_AXIS);
int hspan = (int) getPreferredSpan(X_AXIS);
if (bounds.height != vspan) {
int slop = bounds.height - vspan;
bounds.y += slop / 2;
bounds.height -= slop;
}
// horizontal adjustments
Component c = getContainer();
if (c instanceof JTextField) {
JTextField field = (JTextField) c;
BoundedRangeModel vis = field.getHorizontalVisibility();
int max = Math.max(hspan, bounds.width);
int value = vis.getValue();
int extent = Math.min(max, bounds.width - 1);
if ((value + extent) > max) {
value = max - extent;
}
vis.setRangeProperties(value, extent, vis.getMinimum(), max, false);
if (hspan < bounds.width) {
// horizontally align the interior
int slop = bounds.width - 1 - hspan;
int align = ((JTextField) c).getHorizontalAlignment();
if (Utilities.isLeftToRight(c)) {
if (align == LEADING) {
align = LEFT;
} else if (align == TRAILING) {
align = RIGHT;
}
} else {
if (align == LEADING) {
align = RIGHT;
} else if (align == TRAILING) {
align = LEFT;
}
}
switch (align) {
case SwingConstants.CENTER:
bounds.x += slop / 2;
bounds.width -= slop;
break;
case SwingConstants.RIGHT:
bounds.x += slop;
bounds.width -= slop;
break;
}
} else {
// adjust the allocation to match the bounded range.
bounds.width = hspan;
bounds.x -= vis.getValue();
}
}
return bounds;
}
return null;
}