JTextPane through the mouse to select image problem

[chen zhikai]

I want to do a similar QQ add custom image function, such as the mouse cursor selected by graph and access, this incident of the triggers is: right mouse, select the popup menu "add custom image" option trigger...
Can someone help me?

the following method is realized, but not good control, also very bad to use, I look forward to a better solution, thanks!

jtf_send2.addCaretListener(new CaretListener(){

				public void caretUpdate(CaretEvent e) {
					// TODO Auto-generated method stub
					AbstractDocument doc = (AbstractDocument) jtf_send2.getDocument();
					Element[] rootEles = doc.getRootElements();

					int selBegin = Math.min(e.getDot(), e.getMark());
					int end = Math.max(e.getDot(), e.getMark());
					for (int counter = 0; counter < rootEles.length; counter++) {
						int start = selBegin;
						while (start <= end) {
							Element ele = getLeafElement(rootEles[counter], start);

							AttributeSet attr = ele.getAttributes();
							Object icon = attr
									.getAttribute(StyleConstants.IconAttribute);
							if (icon != null) {
								
								System.err.println(icon.toString());
								boolean find=FileOperate.addMyFile("D://javaChat/Users/"+userName+"/img",icon.toString());	
								
								if(find){
									JOptionPane.showMessageDialog(jtf_send2,"successfully！");
								}
								else{
									JOptionPane.showMessageDialog(jtf_send2,"fail！");
								}
								
							}

							if (start >= ele.getEndOffset())
								start++;
							else
								start = ele.getEndOffset();
						}
					}
				}
				
				private Element getLeafElement(Element rootElement, int position) {
					Element child = rootElement.getElement(rootElement
							.getElementIndex(position));

					while (!child.isLeaf()) {
						child = child.getElement(child.getElementIndex(position));
					}
					return child;
				}
				
			});