/*
 * Copyright 1999,2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package peaklau.eaglefund;


import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;



/**
 * Show a title on the top of the screen<br>
 * 
 * <br>
 * @author peaklau <br>
 *         email:<A HREF="mailto:peaklau@hotmail.com">peaklau@hotmail.com</A> <br>
 *         <a href="http://www.peaklau.com/fund/english/">HomePage</a> 
 * @version $Revision: 1.1 $ $Date: 2007/05/09 16:07:04 $
 */

public class TitleScreen extends BaseCanvas implements CommandListener {  
    private Font defaultFont=Font.getDefaultFont();
	protected int FONT_HEIGHT=defaultFont.getHeight();
    protected int Line_HIGHT=FONT_HEIGHT+1;
    
    protected int width=0;
    protected int height=0;
    
    private String title=" ";
    private Command back=new Command("返回",Command.BACK,1);
    private Command refresh=new Command("刷新",Command.OK,1);
    private String backDisplayable=null;
    private Image logo=null;
    
    public TitleScreen(String title,String backDisplayable,INavigator navigator){
        super(navigator);

        if(title!=null){
            this.title=title;
        }
        if(backDisplayable!=null){
            this.backDisplayable=backDisplayable;
        }       
        try{
            logo=Image.createImage("/logo.png");
        }catch(Exception e){
            e.printStackTrace();
        }
        this.navigator=navigator;
        addCommand(back);       
        addCommand(refresh);       
        setCommandListener(this);
        width=getWidth();
        height=getHeight();
    }

    public void setTitle(String title){
        this.title=title;
    }
    private String status=null;
    public void setStatus(String status){        
        this.status=status;
        repaint();
    }
    
	protected void paint(Graphics g){
		g.setColor(0x00FFFFFF);
		g.fillRect(0,0,width,height);
		
		g.setColor(0xff6282B6);
		g.fillRect(0,0,width,Line_HIGHT);
		
        //title bar
        g.drawImage(logo,0,0,Graphics.LEFT|Graphics.TOP);		
        g.setColor(0x00ff7F7F);        
		int titleX=(width-logo.getWidth()-defaultFont.stringWidth(title))/2+logo.getWidth();
		g.drawString(title,titleX,0,Graphics.LEFT|Graphics.TOP);

        //status bar
        g.setColor(0x00D4D0C8);
        g.setStrokeStyle(Graphics.DOTTED);
        g.drawLine(0,height-Line_HIGHT-1,width,height-Line_HIGHT-1);
        g.setColor(0x00000000);
        if((status==null)||(status.trim().length()==0)){
            status="";
        }
        g.drawString(status,0,height-Line_HIGHT,Graphics.LEFT|Graphics.TOP);
        
	}
	
	public void commandAction(Command command, Displayable displayable) {
        if(command == back){
           navigator.getDisplay().setCurrent(navigator.getDisplayable(backDisplayable));
        }else if(command == refresh){
           refresh();
        }
	}
	
	protected void keyPressed(int keyCode) {
        super.keyPressed(keyCode);
		switch (getGameAction(keyCode)) {
		default:
			break;			
		}		
	}

}