menucanvas.java

Move2008 J2ME SDK是Move2008开发团队在平时的开发中研究出的一个非常精简的类库

import javax.microedition.lcdui.*;
import Move2008.UI.ListMenu;
import Move2008.UI.KeyProcess;
import Move2008.UI.ImageFont;
import Move2008.Const;

class MenuCanvas extends Canvas implements Move2008.UI.Listener{

	KeyProcess keyProcess = new KeyProcess();
	ListMenu listMenu;
	ImageFont iFont1,iFont2,iFont3;
	
	
	public MenuCanvas()
	{
		listMenu = new ListMenu(3);
		listMenu.setItem(0,"帮助");
		listMenu.setItem(1,"关于");		
		listMenu.setItem(2,"退出");
		listMenu.setRect(20,35,80,80);
		
		iFont1 = new ImageFont(SDKSample.rs.getImage(SDKSample.IMG_FONT1),8);
		iFont2 = new ImageFont(SDKSample.rs.getImage(SDKSample.IMG_FONT2),8);		
		iFont3 = new ImageFont(SDKSample.rs.getImage(SDKSample.IMG_FONT3),8);		
		
		keyProcess.setListener(this);
		listMenu.setListener(this);
	}

	public void keyPressed(int keyCode)
	{
		keyProcess.softKey(keyCode);
		
		switch(getGameAction(keyCode))
		{
			case UP:
				listMenu.prevItem();
				repaint();
				break;
			case DOWN:
				listMenu.nextItem();
				repaint();				
				break;
		}
	}

    public void paint(Graphics g)    
	{
		g.setColor(255,255,255);
		g.fillRect(0,0,getWidth(),getHeight());	

		listMenu.paint(g);		

		iFont1.drawString(g, "MOVE2008", (getWidth()-64)/2,5);
		iFont2.drawString(g, "UI SDK DEMO", (getWidth()-88)/2,14);				
		iFont3.drawString(g, "MOVE2008.COM", (getWidth()-96)/2,23);									
	}
	
	public void processUIEvent(Object Obj, int EventId, int Value)
	{
		if(EventId==Const.EVT_SOFTKEY_LEFT)
		{
			switch(listMenu.getFocusIndex())
			{
				case 0:
					SDKSample.helpAlert();
					break;
				case 1:
					SDKSample.aboutAlert();
					break;
				case 2:
					SDKSample.exit();
					break;
			}
		}
		else if(EventId==Const.EVT_SOFTKEY_RIGHT)
		{
			SDKSample.exit();
		}
		else if(EventId==Const.EVT_ITEM_FOCUS)
		{
			System.out.println(Value);
		}
	}	

}