tilemanager.java

AjaxVNC 一个简单的远程控制服务器

/*
 * TileManager.java
 *
 * Created on May 2, 2007, 2:10 AM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package hk.haha.onet.ajaxvnc;


import java.awt.image.*;
/**
 *
 * @author heic
 */
public class TileManager {
    
    private boolean DEBUG = true;
    
    public final int MAX_TILE = 10;
    private Tile tiles[][];
    private int numxtile;
    private int numytile;
    private int tilewidth;
    private int tileheight;
    private int screenwidth;
    private int screenheight;
    
    
    /** Creates a new instance of TileManager */
    public TileManager() {
        tiles = new Tile[MAX_TILE][MAX_TILE];
        numxtile = MAX_TILE;
        numytile = MAX_TILE;
        setSize(640, 480);
    }
    
    public void setSize(int sw, int sh) {
        screenwidth = sw;
        screenheight = sh;
        tilewidth = screenwidth / numxtile;
        tileheight = screenheight / numytile;
    }
    
    public void processImage(BufferedImage image, int x, int y)
    {
        BufferedImage subimage;
        int subw, subh;
        boolean changed;
        numxtile = x;
        numytile = y;
        setSize(screenwidth, screenheight);
        for (int i=0; i < numxtile; i++) {
            for (int j=0; j < numytile; j++) {
                if (tiles[i][j]==null) tiles[i][j] = new Tile();
                    if (i == numxtile-1) 
                        subw = tilewidth + (screenwidth % tilewidth);
                    else
                        subw = tilewidth;
                    if (j == numytile-1)
                        subh = tileheight + (screenheight % tileheight);
                    else
                        subh = tileheight;
                    subimage = image.getSubimage(i*tilewidth, j*tileheight, subw, subh);
		    synchronized (tiles[i][j]) {
			    changed = tiles[i][j].updateImage2(subimage);
			    if (DEBUG) {
				    if (changed) System.out.println(getClass().getName() + ": [" + i + "," + j + "] Changed. ["+tiles[i][j].fileSize()+"]");
			    }
		    }
           }
         }    
    }
    
    public Tile getTile(int x, int y)
    {
        return tiles[x][y];
    }
    
    public int getNumXTile()
    {
        return numxtile;
    }
    
    public int getNumYTile()
    {
        return numytile;
    }
   
    
}