从Jtree中的组件获取事件

问题描述

我推了jpanel-我在Jtree中称为LayerPanel-作为一个单元格，这个jpanel包含4个Jlabels我通过实现TreeCellRenderer接口重新渲染jtree单元问题是，如何在jpanel中捕获每个组件的事件？我尝试使用TreeCellEditor但是没有工作

I putted jpanel -that i called LayerPanel- in Jtree as a cell, this jpanel contains 4 Jlabels i have rerender the jtree cells by implementing TreeCellRenderer interface m question is, how can i catch the event for each component in jpanel ? i tries using TreeCellEditor but in didn't work

public class LayerPanelNode extends DefaultMutableTreeNode
{
	public static class LayerCellEditor extends AbstractCellEditor implements TreeCellEditor, ActionListener, MouseListener
    {
        private LayerPanel layerpanel;
        private Object value;

        public LayerCellEditor(String layerName)
        {
        	layerpanel=new LayerPanel(layerName);
        	layerpanel.getNameLabel().addMouseListener(this);
        }

        public Object getCellEditorValue(){
            return layerpanel;
        }

        public void actionPerformed(ActionEvent e){//this is not called in my code
        	layerpanel = (LayerPanel) value;
            System.out.println("Pressed: " );
            stopCellEditing();
        }

        public Component getTreeCellEditorComponent(JTree tree, Object value, boolean isSelected, boolean expanded, boolean leaf, int row){
        	layerpanel = (LayerPanel)value;
            layerpanel.getNameLabel().setText(value.toString());
            return layerpanel;
        }




		public void mouseClicked(MouseEvent e) {
			// TODO Auto-generated method stub
			 System.out.println("Pressed: " );
		}

		public void mouseEntered(MouseEvent e) {
			// TODO Auto-generated method stub

		}

		public void mouseExited(MouseEvent e) {
			// TODO Auto-generated method stub

		}

		public void mousePressed(MouseEvent e) {
			// TODO Auto-generated method stub
			 String val = value.toString();
	            JOptionPane.showInputDialog("GFDGD");
	            JOptionPane.showInputDialog ("Clicked: " + val);
	            stopCellEditing();

		}

		public void mouseReleased(MouseEvent e) {
			// TODO Auto-generated method stub

		}

		public void addCellEditorListener(CellEditorListener arg0) {
			// TODO Auto-generated method stub

		}

		public void cancelCellEditing() {
			// TODO Auto-generated method stub

		}

		public boolean isCellEditable(EventObject arg0) {
			// TODO Auto-generated method stub
			return false;
		}

		public void removeCellEditorListener(CellEditorListener arg0) {
			// TODO Auto-generated method stub

		}

		public boolean shouldSelectCell(EventObject arg0) {
			// TODO Auto-generated method stub
			return false;
		}

		public boolean stopCellEditing() {
			// TODO Auto-generated method stub
			return false;
		}
    }

    public static class LayerCellRenderer extends JLabel  implements TreeCellRenderer
    {
    	private LayerPanel layerpanel;

        public LayerCellRenderer(String layerName){
        	//super(new BorderLayout());
            layerpanel=new LayerPanel(layerName);
            layerpanel.nameLabel.addMouseListener(new MouseListener() {

				@Override
				public void mouseReleased(MouseEvent e) {
					// TODO Auto-generated method stub

				}

				@Override
				public void mousePressed(MouseEvent e) {

					 JOptionPane.showInputDialog("GFDGD");
					 System.out.println("1111111111");
				}

				@Override
				public void mouseExited(MouseEvent e) {
					// TODO Auto-generated method stub

				}

				@Override
				public void mouseEntered(MouseEvent e) {
					// TODO Auto-generated method stub

				}

				@Override
				public void mouseClicked(MouseEvent e) {
					// TODO Auto-generated method stub

				}
			});
            //add(layerpanel ,BorderLayout.EAST);
        }

        public Component getTreeCellRendererComponent(JTree tree, Object value, boolean sel, boolean expanded, boolean leaf, int row, boolean hasFocus){
        	//super.getTreeCellRendererComponent(tree, value, sel,expanded, leaf, row,hasFocus);
        	layerpanel.getNameLabel().setText(value.toString());// i think value is layerPanel object
        	if (leaf)
        	{
        		JLabel label =new JLabel(layerpanel.getNameLabel().getText());
        		label.setIcon(Utilities.loadResourceImageIcon("eye.png"));
        		return label;
        	}
            return layerpanel;
        }
    }

}

推荐答案

这篇关于从Jtree中的组件获取事件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！