chatcontrol.java

java程序五子棋源代码。 java程序五子棋源代码。

package com.tianxia.qipai.view.util;

import java.io.IOException;

import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.LayerManager;
import javax.microedition.lcdui.game.Sprite;
import javax.microedition.lcdui.game.TiledLayer;

public class ChatControl {
	private Sprite upsprite,downsprite;   //聊天内容上下滚动控制键 图层
	private TiledLayer  contentlayer;  //显示聊天内容 图层
	private TiledLayer  contentrect;   //整个控件的图层框
	private LayerManager lm;         //图层管理器
	private Font font;      //字体
	private int recordnum = 20;  //保留的记录数
	private final int distance = 1; //聊天内容和框的距离
	private int maxrow;   //最多显示行数
	private int firi;  //聊天框第一行显示的单元格编号
	private int currdraw;   //当前画的聊天内容的单元格编号
	private int mostnum;  //每行显示的最多字数
	private int orignX = 0;   //控件的位置
	private int orignY = 0;
	private final int updownwidth = 16;
	private final int updownheight = 13;
	private int upwidth = 0;  //上翻图标宽度
	private int upheight = 0; //上翻图标高度
	
	private int downwidth = 0;//下翻图标宽度
	private int downheight = 0;//下翻图标高度
	
	private int rectwidth = 0;    //控件的宽度
	private int rectheight = 0;   //控件的高度
	
	private int contentwidth = 0;
	private int contentheight = 0;
	
	private boolean chatwordflag[];  //对应1。。40单元格的聊天内容
	private boolean currflag;       //是否已设置当前显示的内容
	private Runtime rt = Runtime.getRuntime();

	
	
	public ChatControl(LayerManager lm,Font font,int rectwidth,int rectheight) {
		super();
		this.lm = lm;
		this.font = font;
		this.rectwidth = rectwidth;
		this.rectheight = rectheight;
		Image upimage = null;
		Image downimage = null;
		Image updownimage = null;
		Image tempimage = null;
		//将聊天内容标志全部设为false
		try {
			updownimage = Image.createImage("/png/updownimage.png");
			tempimage = Image.createImage(updownwidth,updownheight);
			Graphics usergra = tempimage.getGraphics();
			usergra.drawImage(updownimage,0,0,Graphics.TOP|Graphics.LEFT);
			downimage=this.setImageAlph(tempimage);
			tempimage = null;
			usergra = null;
			tempimage = Image.createImage(updownwidth,updownheight);
			usergra = tempimage.getGraphics();
			usergra.drawImage(updownimage,-1*updownwidth,0,Graphics.TOP|Graphics.LEFT);
			upimage=this.setImageAlph(tempimage); 
			tempimage = null;
		} catch (IOException e) {
			// TODO 自动生成 catch 块
			e.printStackTrace();
		}
		upwidth = upimage.getWidth();
		upheight = upimage.getHeight();
		downwidth = downimage.getWidth();
		downheight = downimage.getHeight();
		
		Image rectimage = Image.createImage(rectwidth,rectheight);
		Graphics rectgra = rectimage.getGraphics();
		rectgra.drawRect(0,0,rectwidth-1,rectheight-1);
		rectimage = setImageAlph(rectimage);
		contentrect = new TiledLayer(1,1,rectimage,rectwidth,rectheight);
		contentrect.setCell(0,0,1);
		lm.insert(contentrect,0);   //插入整个控件的图层框
		contentrect.setVisible(false);
		
		
		
		//上翻图层		
		upsprite  = new Sprite(upimage,upwidth,upheight);
		lm.insert(upsprite,0);
		upsprite.setVisible(false);
		//上翻图层	
		downsprite = new Sprite(downimage,downwidth,downheight);
		lm.insert(downsprite,0);
		downsprite.setVisible(false);
		upimage = null;
		downimage = null;
		lm = null;
		rt.gc();
		System.out.println("chatin:  "+String.valueOf(rt.freeMemory()));
		// TODO 自动生成构造函数存根
	}
		
	public void init(String chatcontent,int maxrow,int mostnum,int recordnum){
		this.mostnum = mostnum;
		this.maxrow = maxrow;
		this.recordnum = 2*recordnum;
		currflag =false;
		chatwordflag = new boolean[this.recordnum+1];
		for(int i=0;i<this.recordnum+1;i++){
			chatwordflag[i] = false;
		}
		contentwidth = rectwidth-2*distance;
		contentheight = font.getHeight()*this.recordnum;
		Image contentimage = Image.createImage(contentwidth,contentheight);
		Graphics gra = contentimage.getGraphics();
		gra.setFont(font);
		currdraw = 0;
		contentdraw(gra,chatcontent);
		currflag =false;
		Image tempimage= null;
		//tempimage = setImageAlph(contentimage);
		contentlayer = new TiledLayer(1,maxrow,contentimage,contentimage.getWidth(),font.getHeight());
		lm.insert(contentlayer,2);
		tempimage = null;
		contentimage = null;
		DisplayDeal();
		rt.gc();
		System.out.println("chatinit:  "+String.valueOf(rt.freeMemory()));
		
		
		
	}

	private void updatePosition(){
		contentrect.setPosition(orignX,orignY);
		upsprite.setPosition(orignX+rectwidth-upwidth,orignY);
		downsprite.setPosition(orignX+rectwidth-upwidth,orignY+rectheight-downheight);
		contentlayer.setPosition(orignX+1,orignY+1);
		setVisible(true);
		contentrect = null;
		upsprite = null;
		downsprite = null;
		rt.gc();
		System.out.println("chatupdate:  "+String.valueOf(rt.freeMemory()));
		
	}
	
	
	public void setPosition(int x,int y){
		this.orignX = x;
		this.orignY = y;
		updatePosition();
	}
	

	private  void setVisible(boolean flag){
		contentrect.setVisible(flag);
		upsprite.setVisible(flag);
		downsprite.setVisible(flag);
		contentlayer.setVisible(flag);
	}
	
	public void setOperate(int direction){   //0: 表示向下翻  1：向上翻
		if(direction == 0){
			if(firi+maxrow<=recordnum)
				firi++;
		
		}else if(direction == 1){
			if(chatwordflag[firi-1]){
				firi--;
			}
			
		}
		
			
		DisplayDeal();
	}
	
	
	
	public void append(String [] content,int appendi){
		int i = appendi;
		String drawstr;
		Image contentimage = Image.createImage(contentwidth,contentheight);
		Graphics gra = contentimage.getGraphics();
		gra.setFont(font);
		currdraw = 0;
		for(int j=0;j<this.recordnum+1;j++){   //清空聊天内容的所有标志
			chatwordflag[j] = false;
		}
		while(true){
			drawstr = content[i];
			if(drawstr.equals(""))
				break;
			contentdraw(gra,drawstr);
			if((i == appendi-1)||(appendi == 0 && i == recordnum/2 - 1)){
				break;
			}
			if(i == 0){
				i = recordnum/2 - 1;
			}else{
				i--;
			}
			
		}
		currflag =false;
		Image tempimage = null;
	//	tempimage = setImageAlph(contentimage);  //将图片变透明
		
		//contentlayer.setStaticTileSet(tempimage,contentwidth,font.getHeight());
		contentlayer.setStaticTileSet(contentimage,contentwidth,font.getHeight());
		contentimage = null;
		tempimage = null;
		gra = null;
		rt.gc();
		System.out.println("chatappend:  "+String.valueOf(rt.freeMemory()));
		DisplayDeal();
		
		
	}
	
	private void DisplayDeal(){
		for(int i = 0; i < maxrow; i++){
			contentlayer.setCell(0,i,firi+i);
		}
	
	}
	
	
	
	private void contentdraw(Graphics gra,String drawstr){
		int rowcount = (drawstr.length()+mostnum-1)/mostnum;
		currdraw = currdraw + rowcount;
		int currtemp = recordnum - currdraw;
		if(currtemp>=0){
			if(!currflag){
				int curri = recordnum - rowcount+1;  //由于单元格图片编号从1开始，所以加1
				if(maxrow <= rowcount){
					firi = curri;
				}
				else{
					firi =curri-( maxrow - rowcount);
				}
				currflag = true;
					
			}
			String tempstr1=drawstr;
			String tempstr2;
			int j =0;
			while(tempstr1.length()>mostnum){
				tempstr2 = tempstr1.substring(0,mostnum);
				tempstr1 = tempstr1.substring(mostnum);
				gra.drawString(tempstr2,0,(currtemp+j)*font.getHeight(),Graphics.TOP|Graphics.LEFT);
				chatwordflag[currtemp+j+1] = true;
				j++;
			}
			if(tempstr1.length()>0){
				gra.drawString(tempstr1,0,(currtemp+j)*font.getHeight(),Graphics.TOP|Graphics.LEFT);
				chatwordflag[currtemp+j+1] = true;
			}
				
			
		}
		System.out.println("chatdraw:  "+String.valueOf(rt.freeMemory()));
	}
	
//	将图片变透明
	private Image setImageAlph(Image orignImage){
		Image tempimage = null;
		int tempwidth= 0;
		int tempheight = 0;
		tempwidth = orignImage.getWidth();
		tempheight = orignImage.getHeight();
		int temprect[]= new int[tempwidth*tempheight];
		orignImage.getRGB(temprect,0,tempwidth,0,0,tempwidth,tempheight);
		orignImage = null;
		for(int i = 0;i<tempwidth*tempheight;i++){
			if(temprect[i]==0xffffffff)   //将白底的图片变透明
				temprect[i]=temprect[i]&0x00ffffff;
		}
		tempimage = Image.createRGBImage(temprect,tempwidth,tempheight,true);
		temprect = null;
		rt.gc();
		return tempimage;
	}
	
	public void clear(){
		upsprite = null;
		downsprite = null;   //聊天内容上下滚动控制键 图层
		contentrect = null;   //整个控件的图层框
	}
	
	public void setNull(){
		upsprite = null;
		downsprite = null;   //聊天内容上下滚动控制键 图层
		contentlayer = null;  //显示聊天内容 图层
		contentrect = null;   //整个控件的图层框
		lm = null;         //图层管理器
	}
}