تحرير وافلات نسخ من الصور

خزن الأشكال التي تم سحبها في ليستة

ثم في paintComponent

قم بعمل تكرار عليها

اعرض الشيفرة خاصتك لمساعدة أكثر

تحياتي

أشكرك أخي جدا على ردك لي

وأعتذر عن التأخير لإني انشغلت بالمحاولات فيه

ولكن الى الآن لم اتوصل للنتيجة

هذا هو الكود :

package dnd;



import java.awt.*;
import java.awt.event.*;
import java.awt.dnd.*;
import java.awt.datatransfer.*;
import javax.swing.*;
import java.io.*;
import javax.swing.border.Border;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

public class collaborationDND extends JFrame 
implements DragGestureListener, DragSourceListener, DropTargetListener
{
	Container cpane;
DropTarget mytarget;
DragSource mysource;
DragGestureRecognizer dgr;

private ImageIcon m1 = null; 
private ImageIcon m2 = null;
private ImageIcon m3 = null;
String path1="C:\\Documents and Settings\\majdah\\Desktop\\dnd\\src\\dnd\\line.gif";
String path2="C:\\Documents and Settings\\majdah\\Desktop\\dnd\\src\\dnd\\instance.gif";
String path3="C:\\Documents and Settings\\majdah\\Desktop\\dnd\\src\\dnd\\multiObject.gif";
private int num;

JLabel source2;
JLabel source1;
JList list1;
JTextArea text1;
DefaultListModel lmod;
DrawPanel panel1;
public collaborationDND()
{
	super("collaboration DND");
	m1=  new ImageIcon("C:\\Documents and Settings\\majdah\\Desktop\\dnd\\src\\dnd\\line.gif");
	m2= new ImageIcon("C:\\Documents and Settings\\majdah\\Desktop\\dnd\\src\\dnd\\instance.gif");
	m3= new ImageIcon("C:\\Documents and Settings\\majdah\\Desktop\\dnd\\src\\dnd\\multiObject.gif");	   

	cpane = getContentPane();
	cpane.setLayout(new BorderLayout());
	lmod = new DefaultListModel();
	list1 = new JList(lmod);
	list1.setBackground(Color.LIGHT_GRAY);
	Border listPanelBorder = BorderFactory.createTitledBorder("collaboration tool");
	list1.setBorder(listPanelBorder);

	panel1=new DrawPanel(); 
	panel1.setBackground(Color.DARK_GRAY);

	//panel1.add(new JLabel(m1));

   //===========================================
	lmod.addElement(m1);
	lmod.addElement(m2);
	lmod.addElement(m3);
   //===========================================
   mysource = new DragSource();

mytarget = new DropTarget(panel1, 
DnDConstants.ACTION_COPY_OR_MOVE, this);

dgr = mysource.createDefaultDragGestureRecognizer(list1,
DnDConstants.ACTION_COPY_OR_MOVE, this); 

   //===========================================
	cpane.add( BorderLayout.WEST, list1);
	cpane.add( BorderLayout.CENTER, panel1); 
	 //=======================================

		  list1.addListSelectionListener(new
 javax.swing.event.ListSelectionListener() {
			 public void valueChanged(javax.swing.event.ListSelectionEvent evt)
 {
					if(list1.getSelectedIndex()==0)
							 num=0;

					else  if(list1.getSelectedIndex()==1)
							 num=1;

					else if(list1.getSelectedIndex()==2)
							 num=2;


			 }
		 });
//==============================================================

	setBounds(100, 100, 700, 700);
	setVisible(true);


}


	public static void main(String [] args) {
collaborationDND d1;
d1 = new collaborationDND();
d1.addWindowListener(new WindowAdapter() { 
public void windowClosing(WindowEvent we) {
System.exit(0);
} } );
}

   public void dragGestureRecognized(DragGestureEvent e) {
		if(num==0)
		{ StringSelection sel = new StringSelection(path1);
		mysource.startDrag(e,DragSource.DefaultCopyDrop, sel, this);
		}
		else  if(num==1)
		{ StringSelection sel = new StringSelection(path2);
		mysource.startDrag(e,DragSource.DefaultCopyDrop, sel, this);
		}
		else  if(num==2)
		{ StringSelection sel = new StringSelection(path3);
		mysource.startDrag(e,DragSource.DefaultCopyDrop, sel, this);
		}
	}

   public void dragEnter(DropTargetDragEvent e) {
System.out.println("dragEnter");
e.acceptDrag(DnDConstants.ACTION_COPY_OR_MOVE);
}

 //=============================================================
public void dragExit(DropTargetEvent e) { 
	repaint();

System.out.println("dragExit");
}
public void dragOver(DropTargetDragEvent e) {
	repaint();

System.out.println("dragOver (drop)");
}
public void dropActionChanged(DropTargetDragEvent e) {
	repaint();

System.out.println("dropActionChanged");
}

public void dragDropEnd(DragSourceDropEvent e) {


System.out.println("dragDropEnd");
}
public void dragEnter(DragSourceDragEvent e) {

System.out.println("dragEnter");
}
public void dragExit(DragSourceEvent e) {


System.out.println("dragExit");
}
public void dragOver(DragSourceDragEvent e) {


System.out.println("dragOver (drag)");
}
public void dropActionChanged(DragSourceDragEvent e) {


System.out.println("dragActionChanged (drag)");
}

	//=================================================
   public void drop(DropTargetDropEvent e) {
System.out.println("drop");
try {

	Transferable tr = e.getTransferable();
if (tr.isDataFlavorSupported(DataFlavor.stringFlavor)) {

e.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);
String s = (String)tr.getTransferData(DataFlavor.stringFlavor);

System.out.println(s);
//ImageIcon k = new ImageIcon(s);
panel1.getURL(s);

e.getDropTargetContext().dropComplete(true);  
}
else {
e.rejectDrop();
}
}
catch (Exception ex) {
System.out.println("Data transfer exception: " + ex);
}
}

}
//=========================================================
class DrawPanel extends JPanel
{
	private String Spath1="C:\\Documents and Settings\\majdah\\Desktop\\dnd\\src\\dnd\\line.gif";
	private boolean flag= false;

	public DrawPanel()
	{

	}

	public void getURL(String s)
	{
	 Graphics2D g = (Graphics2D) getGraphics();

	 Spath1 = s;  
	 flag = true;
	 System.out.println(flag);
   this.paintComponent(g);
	}

	//==========================================================================
	public void paintComponent(Graphics g) {
	// super.paintComponent(g);
	 if(flag)
	 {ImageIcon image =   new ImageIcon(Spath1);
   image.paintIcon(this, g, 0, 0);
	 flag=false;}

	}
	//=========================================================================

}//end JPANEL

إذا جربت الكود ستلاحظ أنه يدرج الشكل ثم إذا قمت ادراج شكل آخر يحذف الأول

أنا أريد أن يحتفظ

JPanel

بكل الصور المدرجة عليه.

أرجو منكم مساعدتي

جزاكم الله خير

للرفع

أتمنى احد يفيدني بحل او روابط لمواضيع

لإنني طالبة مشروع تخرج وبرنامجي يعتمد على الرسم بشكل كبير .

alaadiaa كتب:

ثم في paintComponent

قم بعمل تكرار عليها

طريقة التكرار هذه التي أحتاجها

هناك مشروع رسام في القسم

راجعيه وستجدي ما تحتاجين اليه

تحياتي