JAVA Zeichnen Sie Linien zwischen Radiobuttons, beitreten mehr als zwei

Question

Ich beitreten Schaltflächen, aber ich kann nicht mehr als zwei beitreten. Das ist, was ich habe (Code am Ende)

Und das ist, was ich will (Bild bearbeiten mit Farbe) einen Punkt, der

auf mehr als eine Dank verwende ich GlassedPane binden kann

Mein Code:

 package interfaz; 

    import javax.swing.*; 
    import java.awt.*; 
    import java.awt.event.ActionEvent; 
    import java.awt.event.ActionListener; 
    import java.util.HashMap; 
    import java.util.Map; 

    /** 
    * @see http://stackoverflow.com/a/12389479/909085 
    */ 
    public class ComponentLinkerTest extends JComponent { 

     private Map<JComponent, JComponent> linked; 
     private static ComponentLinkerTest linker; 
     private static JRadioButton last = null; 

     public static void main(String[] args) { 
      setupLookAndFeel(); 
      JFrame frame = new JFrame(); 
      JPanel general = new javax.swing.JPanel(); 
      JPanel botones = new javax.swing.JPanel(); 
      general.setLayout(new javax.swing.BoxLayout(general, javax.swing.BoxLayout.LINE_AXIS)); 
      linker = new ComponentLinkerTest(); 
      frame.setGlassPane(linker); 
      linker.setVisible(true); 

      JPanel content = new JPanel(); 
      content.setLayout(new GridLayout(10, 10, 5, 5)); 
      content.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5)); 
      general.add(content); 
      JButton aceptar = new JButton("Generar ruta"); 
      aceptar.addActionListener((ActionEvent e) -> { 
       System.out.println(linker.toString()); 
      }); 
      botones.add(aceptar); 
      general.add(botones); 
      frame.add(general); 
      int a=0; 
      int b= 0; 
      //frame.add (content); 
      for (int i = 0; i < 100; i++) { 
       if(b==10){ 
        a++; 
        b=0; 
       } 
       String pos = ""; 
       pos=a+","+b; 
       JRadioButton button = new JRadioButton(); 
       button.setName(pos); 
       //final JButton button = new JButton(); 
       button.addActionListener((ActionEvent e) -> { 
        button.setSelected(true); 
        link(button); 
       }); 
       content.add(button); 
       b++; 
      } 

      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
      frame.pack(); 
      frame.setLocationRelativeTo(null); 
      frame.setVisible(true); 
     } 

     public ComponentLinkerTest() { 
      super(); 
      linked = new HashMap<JComponent, JComponent>(); 
     } 

     public void link(JComponent c1, JComponent c2) { 
      linked.put(c1, c2); 
      repaint(); 
     } 

     protected void paintComponent(Graphics g) { 
      Graphics2D g2d = (Graphics2D) g; 
      g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); 

      g2d.setPaint(Color.BLACK); 
      for (JComponent c1 : linked.keySet()) { 
       Point p1 = getRectCenter(getBoundsInWindow(c1)); 
       Point p2 = getRectCenter(getBoundsInWindow(linked.get(c1))); 
       g2d.drawLine(p1.x, p1.y, p2.x, p2.y); 
      } 
     } 

     private Point getRectCenter(Rectangle rect) { 
      return new Point(rect.x + rect.width/2, rect.y + rect.height/2); 
     } 

     private Rectangle getBoundsInWindow(Component component) { 
      return getRelativeBounds(component, getRootPaneAncestor(component)); 
     } 

     private Rectangle getRelativeBounds(Component component, Component relativeTo) { 
      return new Rectangle(getRelativeLocation(component, relativeTo), 
        component.getSize()); 
     } 

     private Point getRelativeLocation(Component component, Component relativeTo) { 
      Point los = component.getLocationOnScreen(); 
      Point rt = relativeTo.getLocationOnScreen(); 
      return new Point(los.x - rt.x, los.y - rt.y); 
     } 

     private JRootPane getRootPaneAncestor(Component c) { 
      for (Container p = c.getParent(); p != null; p = p.getParent()) { 
       if (p instanceof JRootPane) { 
        return (JRootPane) p; 
       } 
      } 
      return null; 
     } 

     public boolean contains(int x, int y) { 
      return false; 
     } 

     private static void link(JRadioButton button) { 
      System.out.println(""+button.getName()); 
      if (last == null) { 
       last = button; 
      } else { 
       linker.link(last, button); 
       last = null; 
      } 
     } 

     private static void setupLookAndFeel() { 
      try { 
       UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); 
      } catch (ClassNotFoundException e) { 
       e.printStackTrace(); 
      } catch (InstantiationException e) { 
       e.printStackTrace(); 
      } catch (IllegalAccessException e) { 
       e.printStackTrace(); 
      } catch (UnsupportedLookAndFeelException e) { 
       e.printStackTrace(); 
      } 
     } 
    } 

Answer 1

Die Art der linkedMap ist. Aber was Sie brauchen, ist ein List von Paaren Component s. Hier ist eine Lösung: [Ich habe einen Teil des Codes angepasst, um mit JDK 1.7 kompatibel zu sein. Ich habe keine 1.8 auf meinem Laptop. Ich denke, dass Sie das justieren können.]

import java.awt.Color; 
import java.awt.Component; 
import java.awt.Container; 
import java.awt.Graphics; 
import java.awt.Graphics2D; 
import java.awt.GridLayout; 
import java.awt.Point; 
import java.awt.Rectangle; 
import java.awt.RenderingHints; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.util.AbstractMap; 
import java.util.ArrayList; 
import java.util.List; 
import java.util.Map; 

import javax.swing.BorderFactory; 
import javax.swing.JButton; 
import javax.swing.JComponent; 
import javax.swing.JFrame; 
import javax.swing.JPanel; 
import javax.swing.JRadioButton; 
import javax.swing.JRootPane; 
import javax.swing.UIManager; 
import javax.swing.UnsupportedLookAndFeelException; 

/** 
* @see http://stackoverflow.com/a/12389479/909085 
*/ 
public class ComponentLinkerTest extends JComponent { 

    private List<Map.Entry<Component, Component>> linked; 
    private static ComponentLinkerTest linker; 
    private static JRadioButton last = null; 

    public static void main(String[] args) { 
      setupLookAndFeel(); 
      JFrame frame = new JFrame(); 
      JPanel general = new javax.swing.JPanel(); 
      JPanel botones = new javax.swing.JPanel(); 
      general.setLayout(new javax.swing.BoxLayout(general, javax.swing.BoxLayout.LINE_AXIS)); 
      linker = new ComponentLinkerTest(); 
      frame.setGlassPane(linker); 
      linker.setVisible(true); 

      JPanel content = new JPanel(); 
      content.setLayout(new GridLayout(10, 10, 5, 5)); 
      content.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5)); 
      general.add(content); 
      JButton aceptar = new JButton("Generar ruta"); 
      aceptar.addActionListener(new ActionListener() { 

       @Override 
       public void actionPerformed(ActionEvent e) { 
         System.out.println(linker.toString()); 
            } 
      }); 
      botones.add(aceptar); 
      general.add(botones); 
      frame.add(general); 
      int a=0; 
      int b= 0; 
      //frame.add (content); 
      for (int i = 0; i < 100; i++) { 
       if(b==10){ 
        a++; 
        b=0; 
       } 
       String pos = ""; 
       pos=a+","+b; 
       final JRadioButton button = new JRadioButton(); 
       button.setName(pos); 
       //final JButton button = new JButton(); 
       button.addActionListener(new ActionListener() { 

        @Override 
        public void actionPerformed(ActionEvent e) { 
         button.setSelected(true); 
         link(button); 
        } 
       }); 
       content.add(button); 
       b++; 
      } 

      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
      frame.pack(); 
      frame.setLocationRelativeTo(null); 
      frame.setVisible(true); 
     } 

    public ComponentLinkerTest() { 
     super(); 
     linked = new ArrayList<Map.Entry<Component,Component>>(); 
    } 

    public void link(JComponent c1, JComponent c2) { 
     Map.Entry entry = new AbstractMap.SimpleEntry<>(c1, c2); 
     linked.add(entry); 
     repaint(); 
    } 

    protected void paintComponent(Graphics g) { 
     Graphics2D g2d = (Graphics2D) g; 
     g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, 
       RenderingHints.VALUE_ANTIALIAS_ON); 

     g2d.setPaint(Color.BLACK); 
     for (Map.Entry entry : linked) { 
      Point p1 = getRectCenter(getBoundsInWindow((Component)entry.getKey())); 
      Point p2 = getRectCenter(getBoundsInWindow((Component)entry.getValue())); 
      g2d.drawLine(p1.x, p1.y, p2.x, p2.y); 
     } 
    } 

    private Point getRectCenter(Rectangle rect) { 
     return new Point(rect.x + rect.width/2, rect.y + rect.height/2); 
    } 

    private Rectangle getBoundsInWindow(Component component) { 
     return getRelativeBounds(component, getRootPaneAncestor(component)); 
    } 

    private Rectangle getRelativeBounds(Component component, 
      Component relativeTo) { 
     return new Rectangle(getRelativeLocation(component, relativeTo), 
       component.getSize()); 
    } 

    private Point getRelativeLocation(Component component, Component relativeTo) { 
     Point los = component.getLocationOnScreen(); 
     Point rt = relativeTo.getLocationOnScreen(); 
     return new Point(los.x - rt.x, los.y - rt.y); 
    } 

    private JRootPane getRootPaneAncestor(Component c) { 
     for (Container p = c.getParent(); p != null; p = p.getParent()) { 
      if (p instanceof JRootPane) { 
       return (JRootPane) p; 
      } 
     } 
     return null; 
    } 

    public boolean contains(int x, int y) { 
     return false; 
    } 

    private static void link(JRadioButton button) { 
     System.out.println("" + button.getName()); 
     if (last == null) { 
      last = button; 
     } else { 
      linker.link(last, button); 
      last = null; 
     } 
    } 

    private static void setupLookAndFeel() { 
     try { 
      UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); 
     } catch (ClassNotFoundException e) { 
      e.printStackTrace(); 
     } catch (InstantiationException e) { 
      e.printStackTrace(); 
     } catch (IllegalAccessException e) { 
      e.printStackTrace(); 
     } catch (UnsupportedLookAndFeelException e) { 
      e.printStackTrace(); 
     } 
    } 
} 

Answer 2

Privat static void Link (JRadioButton Taste) {

 System.out.println(""+button.getName()); 

     if (last == null) { 

      last = button; 

     } else { 

      linker.link(last, button); 

      last = null; 

     } 

    } 

ich einen Fehler finden Sie hier. Sie sollten zuletzt auf die aktuelle Taste zurückgesetzt werden, aber sie machen es null {

linker.link(last, button); 

last = button; 

//and not 

last=null;