public ListBox showScrollbar() {
isScrollbarVisible = true;
if ((items.size()) * _myItemHeight > _myBackgroundHeight && isScrollbarVisible) {
_myScrollbar.show();
}
return this;
}
protected void updateScroll() {
_myScrollValue = _myScrollbar.getValue();
_myScrollbar.setValue(_myScrollValue);
if (buttons.size() < items.size() && isScrollbarVisible) {
_myScrollbar.show();
}
updateBackground();
scroll();
}
private void cancelGrab() {
mTracking = false;
mTriggered = false;
mOtherSlider.show(true);
mCurrentSlider.reset(false);
mCurrentSlider.hideTarget();
mCurrentSlider = null;
mOtherSlider = null;
setGrabbedState(OnTriggerListener.NO_HANDLE);
}
protected void updateBackground() {
if (items.size() * (_myItemHeight + spacing) < _myOriginalBackgroundHeight) {
_myBackgroundHeight = items.size() * (_myItemHeight + spacing);
}
if (buttons.size() < items.size()) {
_myScrollbar.setHeight(_myBackgroundHeight - spacing);
_myScrollbar.show();
} else {
_myScrollbar.hide();
}
updateButtonWidth();
}
protected void scroll() {
itemOffset = 0;
if (buttons.size() < items.size() && isScrollbarVisible) {
_myScrollbar.show();
itemOffset = (int) Math.abs(_myScrollValue * (items.size() - buttons.size()));
} else {
_myScrollbar.hide();
}
if (!bulkadding) {
for (int i = 0; i < buttons.size(); i++) {
ListBoxItem item = items.get(itemOffset + i);
Button b = buttons.get(i);
b.getCaptionLabel().toUpperCase(isToUpperCase);
b.setColor(item.getColor());
b.getCaptionLabel().set(item.getText());
b._myValue = item.getValue();
}
}
}