compositecomponent.java

Micro Window Toolkit(MWT)是一个用于开发J2ME用户界面(UI)的工具包。它具有友好

package prototype;

import java.util.Vector;

import javax.microedition.lcdui.Graphics;



public class CompositeComponent extends Component {

	Vector childs = new Vector();

	Component focus;

	int rectX;

	int rectY;

	int rectW;

	int rectH;

	public CompositeComponent(int x, int y, int width, int height) {
		super(x, y, width, height);
		// TODO
	}

	public void add(Component c, int index) {
		childs.insertElementAt(c, index);
		c.setParent(this);
	}

	final public void add(Component c) {
		this.add(c, childs.size());
	}
	
	/**
	 * Gets the number of components currently added
	 * 
	 * @return the number of components currently added
	 */
	public int getComponentCount() {
		return childs.size();
	}

	/**
	 * get UIComponet at the specified index
	 * 
	 * @param index
	 * @return
	 */
	public Focusable getComponent(int index) {
		return (Focusable) childs.elementAt(index);
	}

	public int getComponentIndex(Focusable c) {
		return childs.indexOf(c);
	}

	public void remove(int index) {
		((Component) childs.elementAt(index)).setParent(null);
		childs.removeElementAt(index);
	}

	final public void setFocusNext() {
		if (focus != null)
			moveFocus(focus, true);
	}

	public Focusable getFocus() {
		return focus;
	}

	void moveFocus(Focusable c, boolean forward) {

	}

	protected void paint(Graphics g, CompositeComponent w) {
		
	}
			
}