bqcanvas.java

J2me唆哈的代码

/*
 * Created on 2005-9-20 by pcy
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package a.a.a.midp.lcdui;

import javax.microedition.lcdui.*;

import a.a.a.b.*;


import java.awt.image.*;


public class BQCanvas extends BQDisplayable {
    public static final long serialVersionUID=1;
    protected Image screenImage;

    public BQCanvas() {
        super();
        resizeScreen();
    }


    public boolean isDoubleBuffered() {
        return true;
    }

    public int getGameAction(int keyCode) {
    	if(keyCode==e.KEY_SOFT1){
    		return 0;
    	}else if(keyCode==e.KEY_SOFT2){
    		return 0;
    	}else if(keyCode==e.KEY_UP){
    		return Canvas.UP;
    	}else if(keyCode==e.KEY_DOWN){
    		return Canvas.DOWN;
    	}else if(keyCode==e.KEY_LEFT){
    		return Canvas.LEFT;
    	}else if(keyCode==e.KEY_RIGHT){
    		return Canvas.RIGHT;
    	}else if(keyCode==e.KEY_SELECT){
    		return Canvas.FIRE;
    	}
        switch (keyCode) {
        case Canvas.KEY_NUM0:
            return 0;
        case Canvas.KEY_NUM1:
            return Canvas.GAME_A;
        case Canvas.KEY_NUM2:
            return Canvas.UP;
        case Canvas.KEY_NUM3:
            return Canvas.GAME_B;
        case Canvas.KEY_NUM4:
            return Canvas.LEFT;
        case Canvas.KEY_NUM5:
            return Canvas.FIRE;
        case Canvas.KEY_NUM6:
            return Canvas.RIGHT;
        case Canvas.KEY_NUM7:
            return Canvas.GAME_C;
        case Canvas.KEY_NUM8:
            return Canvas.DOWN;
        case Canvas.KEY_NUM9:
            return Canvas.GAME_D;
        case Canvas.KEY_STAR:
            return 0;
        case Canvas.KEY_POUND:
            return 0;
        default:
            //throw new IllegalArgumentException();
            return 0;
        }
    }

    public int getKeyCode(int gameAction) {
        switch (gameAction) {
        case Canvas.UP:
            return e.KEY_UP;
        case Canvas.DOWN:
            return e.KEY_DOWN;
        case Canvas.LEFT:
            return e.KEY_LEFT;
        case Canvas.RIGHT:
            return e.KEY_RIGHT;
        case Canvas.FIRE:
            return e.KEY_SELECT;
        case Canvas.GAME_A:
            return Canvas.KEY_NUM1;
        case Canvas.GAME_B:
            return Canvas.KEY_NUM3;
        case Canvas.GAME_C:
            return Canvas.KEY_NUM7;
        case Canvas.GAME_D:
            return Canvas.KEY_NUM9;
        default:            
            throw new IllegalArgumentException();
        }
    }

    public String getKeyName(int keyCode) {
    	if(keyCode==e.KEY_SOFT1){
    		return "SOFT1";
    	}else if(keyCode==e.KEY_SOFT2){
    		return "SOFT2";
    	}else if(keyCode==e.KEY_UP){
    		return "UP";
    	}else if(keyCode==e.KEY_DOWN){
    		return "DOWN";
    	}else if(keyCode==e.KEY_LEFT){
    		return "LEFT";
    	}else if(keyCode==e.KEY_RIGHT){
    		return "RIGHT";
    	}else if(keyCode==e.KEY_SELECT){
    		return "FIRE";
    	}
        switch (keyCode) {
        case Canvas.KEY_NUM0:
            return "0";
        case Canvas.KEY_NUM1:
            return "1";
        case Canvas.KEY_NUM2:
            return "2";
        case Canvas.KEY_NUM3:
            return "3";
        case Canvas.KEY_NUM4:
            return "4";
        case Canvas.KEY_NUM5:
            return "5";
        case Canvas.KEY_NUM6:
            return "6";
        case Canvas.KEY_NUM7:
            return "7";
        case Canvas.KEY_NUM8:
            return "8";
        case Canvas.KEY_NUM9:
            return "9";
        case Canvas.KEY_STAR:
            return "STAR";
        case Canvas.KEY_POUND:
            return "POUND";
        default:
            return "";
        }
    }


    public boolean hasPointerEvents() {

        return e.getInstance(null).hasPointerEvent();
    }

    public boolean hasPointerMotionEvents() {

        return e.getInstance(null).hasPointerEvent();
    }

    public boolean hasRepeatEvents() {

        return e.getInstance(null).hasRepeatEvents();
    }


    public final void repaintBQCanvas() {
        ((BQScreenCanvas)screenPanel).updateImage(screenImage.getBQImage().getTrueImage());
    }


    public final void repaintBQCanvas(int x, int y, int w, int h) {
        ((BQScreenCanvas)screenPanel).updateImage(screenImage.getBQImage().getTrueImage(),
                x,y,w,h);
    }
    

    public final void serviceRepaints() {
    	
    }



    public Graphics getPaintGraphics(){
    	return screenImage.getGraphics();
    }
    
    public BufferedImage getScreenImage(){
        return ((BQScreenCanvas)screenPanel).getScreenImage();
    }

    public void resizeScreen(){
        super.resizeScreen();
    	int w=e.getInstance(null).getScreenWidth();
        int h=e.getInstance(null).getScreenHeight();
        screenImage=null;
        screenImage=Image.createImage(w,h);
        if(shell!=null){
        	((Canvas)shell).repaint();
        }
        System.gc();
    }
}