panel.java

开发框架。 一.说明： 此框架的意图是解决手机软件开发中常遇到

package org.gggeye.easymf.ui;
import java.util.Hashtable;

import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.Graphics;

import org.gggeye.easymf.log.Logger;
import org.gggeye.easymf.midlet.MIDletManager;

public class Panel extends Canvas{
	/**
	 * 行距
	 */
	public static byte ROW_SPACE = 0;
	public static byte SCROLL_SPACE = 6;

	public static int width;
	public static int height;
	public static int viewWidth;
	
	public static int viewStartY;
	public static int viewHeight ;
	
	public static int labelHeight ;

	public static Font defaultFont = Font.getFont(Font.FACE_SYSTEM,
			Font.STYLE_PLAIN, Font.SIZE_SMALL);
 
 
	/**
	 * 菜单
	 */
	Menu menu;
	
	 
	/**
	 * 事件监听器
	 */
	
	/**
	 * UI 容器
	 */
	Container container;
	
	
	HtmlDocument document;
	protected ViewBuilder viewBuilder;
	ProcessView process;
	
	
	/**
	 * 浏览控制的构造体
	 * @param xWeb
	 */
	public Panel(String _title) {
		initScreenParameter();
	 
		container = new Container(this);
		document = new HtmlDocument();
		document.title = _title;
		viewBuilder = new ViewBuilder(document);
		this.container.htmlDocument = document;
	}
	 
	 
	 


	protected void paint(Graphics g) {
		long start = System.currentTimeMillis();
		Pen tPen = new Pen(g);
		doPaint(tPen);
		
		container.doDrawTitle(tPen);
		container.doDrawMenu(tPen);
		if(menu != null)
			menu.doPaint(g);
		if(process != null)
			process.doPaint(tPen, this.document);
		long end = System.currentTimeMillis();
		
		Logger.info("绘制消耗时间==>" + (end-start));
		 
	}
	
	/**
	 * 子类实现这个东西的时候
	 * 绘制的是一个实体
	 * @param _pen
	 */
	protected void doPaint(Pen _pen){
		this.container.doPaintViews(_pen);
	}
	
	private void initScreenParameter() {
		this.setFullScreenMode(true);
		width = this.getWidth();
		height = this.getHeight();
		labelHeight = defaultFont.getHeight();
		viewStartY = labelHeight;
		viewWidth = width - SCROLL_SPACE - 4;
		viewHeight = height - labelHeight*2;
	}



 

 
    protected void keyRepeated(int _keyCode) {
//    	_keyCode = this.converKey(_keyCode);
//		doClick(_keyCode);
    }

 
    protected void keyReleased(int _keyCode) {
    	
    }
   
    protected void pointerPressed(int x, int y) {
    }
    
    
    protected void pointerReleased(int x, int y) {
    }
    
    
    protected void pointerDragged(int x, int y) {
    }
    
	protected void keyPressed(int _keyCode) {			
		_keyCode = this.converKey(_keyCode);
		doClick(_keyCode);
 
		
	}





	private void doClick(int _keyCode) {
		if(this.menu != null){
			menu.doClick(_keyCode);
		}
		if(menu != null && menu.isOpen){
			if(_keyCode == 8){
				menu.isOpen = false;
			}
			
			return;
		}
		this.container.doClick(_keyCode);
		this.repaint();
	}
	
	/**
	 * 物理键值转换成自定义键值
	 * @param _keyCode -- 物理键值
	 * @return
	 */
	private int converKey(int _keyCode){
		try{
			if(_keyCode == -6 || _keyCode == -7)
				return _keyCode;
			int gameKey = this.getGameAction(_keyCode);						
			return gameKey;
		}catch(Exception e){
			Logger.debug(e);
			return _keyCode;
		}
	}
	
	public final void setMenu(Menu _menu){
		this.menu = _menu;
	}

	public final void setEventListener(EventListener _eventListener){
		this.container.setEventListener(_eventListener);
		//if(this.menu == )
	}
	
	public final void show(){
		MIDletManager.show(this);
	}
	
	public final int size(){
		return this.document.size();
	}
	
	public ViewBuilder getViewBuilder(){		
		return this.viewBuilder;
	}
	
	public void clearViews(){
		this.viewBuilder.reset();
	}
	
	public View getFocusView(){
		try{
			return (View)this.document.getFocusView();
		}catch(Exception e){
			Logger.debug(e);		
		}
		return null;
	}
	 
	
	public void insert(View _view, int _index){
		
	}
	public void append(View _view){
		this.viewBuilder.addView(_view);
		this.repaint();
	}
	public void delete(int _index){
		this.viewBuilder.delete(_index);
		this.repaint();
	}
	
	public void delete(View _item){
		this.viewBuilder.delete(_item);
		this.repaint();
	}
	

	public Hashtable getKeyValues(HtmlForm _htmlForm) {
		return this.document.getKeyValues(_htmlForm);
	}
	
	public void setProcess(ProcessView _process){
		this.process = _process;
	}
	/**
	 * 特殊的View
	 * @param _process
	 */
	public void activeProcess(){
		if(process != null)
			process.active();
	}
	
	public void cancelProcess(){
		if(process != null)
			process.cancel();
		this.repaint();
	}
	
	public View findViewByName(String _name){
		return this.document.findViewByName(_name);
	}
 
}