Adobe FLEX 2 - CREATING AND EXTENDING COMPONENTS Manual page 179

if (textPlacement == "left") {
text_mc.move(4, 4);
mode_mc.move(4 + textWidth + 5, 4);
}
else {
mode_mc.move(4, 4);
text_mc.move(4 + buttonWidth + 5, 4);
}
// Draw a simple border around the child components.
graphics.lineStyle(1, 0x000000, 1.0);
graphics.drawRect(0, 0, unscaledWidth, unscaledHeight);
}
/*** i) Add methods, properties, and metadata. ***/
// The general pattern for properties is to specify a private
// holder variable.
private var _textPlacement:String = "left";
// Create a getter/setter pair for the textPlacement property.
public function set textPlacement(p:String):void {
_textPlacement = p;
invalidateDisplayList();
dispatchEvent(new Event("placementChanged"));
}
// The textPlacement property supports data binding.
[Bindable(event="placementChanged")]
public function get textPlacement():String {
return _textPlacement;
}
private var _text:String = "ModalText";
private var bTextChanged:Boolean = false;
// Create a getter/setter pair for the text property.
public function set text(t:String):void {
_text = t;
bTextChanged = true;
invalidateProperties();
dispatchEvent(new Event("textChanged"));
}
[Bindable(event="textChanged")]
public function get text():String {
return text_mc.text;
}
// Handle events that are dispatched by the children.
Example: Creating a composite component 179