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Thread: Selecting and dragging a image from multiple image in Java Applet

  1. #1
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    Default Selecting and dragging a image from multiple image in Java Applet

    I am just able to select one images from multiple images and dragging of images is not possible on entire screen of Java Applet Frame,Below are the three images displayed Java Applet ,I wanted to select it and then drag it anywhere on the Applet Frame

             import java.applet.*;
             import java.awt.*;
             import java.awt.event.*;
     
              /*
             <applet code="SelectingImage" width=500 height=300>
             <param name=img1 value=arrow1.jpg>
             <param name=img2 value=Home.jpg> 
             <param name=img3 value=arrow2.jpg>
             </applet>
              */
           public class SelectingImage extends Applet implements                   
            MouseListener,MouseMotionListener{                     
    	Image img[]=new Image[3];
    	int y=10;
    	int a;
    	int dx,dy;
    	int xpos,ypos;
    	int x[]=new int[3];
    	boolean imgdrag,imgclick,enabled=true;
    	public void init(){
    	try{
    		MediaTracker mt=new MediaTracker(this);
    		img[0]=getImage(getDocumentBase(),getParameter("img1"));
    		img[1]=getImage(getDocumentBase(),getParameter("img2"));
    		img[2]=getImage(getDocumentBase(),getParameter("img3"));
    		for(int i=0;i<3;i++){
    			x[i]=(i+1)*150;
    			mt.addImage(img[i],i);
    		}
    		mt.waitForAll();
    		addMouseListener(this);
    		}
    		catch (InterruptedException e) { };
    	}
     
     
    	public void paint(Graphics g){
    		for(int i=0;i<3;i++){
    				g.drawImage(img[i],x[i],y,null);
    				}
    				for(int i=0;i<3;i++){
    				if(xpos>=x[i] && xpos<=img[i].getWidth(null)+x[i] &&     
    	                        ypos>=10 && ypos<=img[i].getHeight(null))
                                     {                                                                                                
                           g.drawRect(x[i],10,img[i].getWidth(null),img[i].getHeight(null)); 	                                                   			 
     
    					a=i;
    					imgclick=true;
    					break;
    				}
    				else{
    					imgclick=false;
    				}
    			}
    			if(imgclick){
    				g.drawImage(img[a],xpos,ypos,null);
    			}
    	}
                       public void mouseClicked (MouseEvent me) 
                       {
    	            xpos=me.getX();	
                        ypos=me.getY();	
    	            showStatus("Mouse at"+me.getX());
    	            repaint();
                        }
                       public void mouseEntered (MouseEvent me) {
                        } 
                       public void mousePressed (MouseEvent me) {} 
                       public void mouseReleased (MouseEvent me) {}  
                       public void mouseExited (MouseEvent me) {} 
                       public void mouseDragged(MouseEvent me){
    		    xpos=me.getX();
    		    ypos=me.getY();
     
    		showStatus("Mouse at"+me.getX());
    		repaint();
                      }
                 public void mouseMoved(MouseEvent me){
        	       xpos=me.getX();
    		ypos=me.getY();
    		repaint();
                  }
     
                  }
    arrow1.jpg
    arrow2.jpg
    Home.jpg


  2. #2
    Super Moderator jps's Avatar
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    Default Re: Selecting and dragging a image from multiple image in Java Applet

    I do not fully understand what it should do and what it does do, please try to explain it again for me?
    Also what have you tried in fixing this already? Any idea what you think is wrong or what to look for?

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