Adobe FLEX 2 - CREATING AND EXTENDING COMPONENTS Manual page 177

// different child instead.
override protected function createChildren():void {
super.createChildren();
// Create and initialize the TextArea control.
if (!text_mc)
{
text_mc = new TextArea();
text_mc.explicitWidth = 80;
text_mc.editable = false;
text_mc.text= _text;
text_mc.addEventListener("change", handleChangeEvent);
addChild(text_mc);
}
// Create and initialize the Button control.
if (!mode_mc)
{ mode_mc = new Button();
mode_mc.label = "Toggle Editing Mode";
// If you do not have skins available,
// comment out these lines.
mode_mc.setStyle('overSkin', modeOverSkinName);
mode_mc.setStyle('upSkin', modeUpSkinName);
mode_mc.setStyle('downSkin', modeDownSkinName);
mode_mc.addEventListener("click", handleClickEvent);
addChild(mode_mc);
}
}
/*** f) Implement the commitProperties() method. ***/
override protected function commitProperties():void {
super.commitProperties();
if (bTextChanged) {
bTextChanged = false;
text_mc.text = _text;
invalidateDisplayList();
}
}
/*** g) Implement the measure() method. ***/
// The default width is the size of the text plus the button.
// The height is dictated by the button.
override protected function measure():void {
super.measure();
// Since the Button control uses skins, get the
// measured size of the Button control.
Example: Creating a composite component 177