Java by API/javax.swing.tree/DefaultTreeCellRenderer

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DefaultTreeCellRenderer: getBackgroundSelectionColor()

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;
public class MainClass {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Changed Renderer");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JTree tree = new JTree();
    DefaultTreeCellRenderer renderer = (DefaultTreeCellRenderer) tree.getCellRenderer();
    renderer.setFont(new Font("Dialog", Font.BOLD | Font.ITALIC, 32));
    int rowHeight = tree.getRowHeight();
    if (rowHeight <= 0) {
      tree.setRowHeight(rowHeight - 1);
    }
    Color backgroundSelection = renderer.getBackgroundSelectionColor();
    renderer.setBackgroundSelectionColor(Color.blue);
    renderer.setBackgroundNonSelectionColor(backgroundSelection);
    // Swap text colors
    Color textSelection = renderer.getTextSelectionColor();
    renderer.setTextSelectionColor(Color.green);
    renderer.setTextNonSelectionColor(textSelection);
    JScrollPane scrollPane = new JScrollPane(tree);
    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 150);
    frame.setVisible(true);
  }
}





DefaultTreeCellRenderer: getTextSelectionColor()

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;
public class MainClass {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Changed Renderer");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JTree tree = new JTree();
    DefaultTreeCellRenderer renderer = (DefaultTreeCellRenderer) tree.getCellRenderer();
    renderer.setFont(new Font("Dialog", Font.BOLD | Font.ITALIC, 32));
    int rowHeight = tree.getRowHeight();
    if (rowHeight <= 0) {
      tree.setRowHeight(rowHeight - 1);
    }
    Color backgroundSelection = renderer.getBackgroundSelectionColor();
    renderer.setBackgroundSelectionColor(Color.blue);
    renderer.setBackgroundNonSelectionColor(backgroundSelection);
    // Swap text colors
    Color textSelection = renderer.getTextSelectionColor();
    renderer.setTextSelectionColor(Color.green);
    renderer.setTextNonSelectionColor(textSelection);
    JScrollPane scrollPane = new JScrollPane(tree);
    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 150);
    frame.setVisible(true);
  }
}





DefaultTreeCellRenderer: setBackgroundNonSelectionColor(Color newColor)

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;
public class MainClass {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Changed Renderer");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JTree tree = new JTree();
    DefaultTreeCellRenderer renderer = (DefaultTreeCellRenderer) tree.getCellRenderer();
    renderer.setFont(new Font("Dialog", Font.BOLD | Font.ITALIC, 32));
    int rowHeight = tree.getRowHeight();
    if (rowHeight <= 0) {
      tree.setRowHeight(rowHeight - 1);
    }
    Color backgroundSelection = renderer.getBackgroundSelectionColor();
    renderer.setBackgroundSelectionColor(Color.blue);
    renderer.setBackgroundNonSelectionColor(backgroundSelection);
    // Swap text colors
    Color textSelection = renderer.getTextSelectionColor();
    renderer.setTextSelectionColor(Color.green);
    renderer.setTextNonSelectionColor(textSelection);
    JScrollPane scrollPane = new JScrollPane(tree);
    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 150);
    frame.setVisible(true);
  }
}





DefaultTreeCellRenderer: setBackgroundSelectionColor(Color newColor)

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;
public class MainClass {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Changed Renderer");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JTree tree = new JTree();
    DefaultTreeCellRenderer renderer = (DefaultTreeCellRenderer) tree.getCellRenderer();
    renderer.setFont(new Font("Dialog", Font.BOLD | Font.ITALIC, 32));
    int rowHeight = tree.getRowHeight();
    if (rowHeight <= 0) {
      tree.setRowHeight(rowHeight - 1);
    }
    Color backgroundSelection = renderer.getBackgroundSelectionColor();
    renderer.setBackgroundSelectionColor(Color.blue);
    renderer.setBackgroundNonSelectionColor(backgroundSelection);
    // Swap text colors
    Color textSelection = renderer.getTextSelectionColor();
    renderer.setTextSelectionColor(Color.green);
    renderer.setTextNonSelectionColor(textSelection);
    JScrollPane scrollPane = new JScrollPane(tree);
    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 150);
    frame.setVisible(true);
  }
}





DefaultTreeCellRenderer: setClosedIcon(Icon newIcon)

import java.awt.BorderLayout;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.DefaultTreeModel;
public class MainClass extends JFrame {
  JTree tree;
  DefaultTreeModel treeModel;
  public MainClass() {
    super("Tree Test Example");
    setSize(200, 150);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
  }
  public void init() {
    DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root");
    DefaultMutableTreeNode subroot = new DefaultMutableTreeNode("SubRoot");
    DefaultMutableTreeNode leaf1 = new DefaultMutableTreeNode("Leaf 1");
    DefaultMutableTreeNode leaf2 = new DefaultMutableTreeNode("Leaf 2");
    treeModel = new DefaultTreeModel(root);
    tree = new JTree(treeModel);
    treeModel.insertNodeInto(subroot, root, 0);
    subroot.add(leaf1);
    root.add(leaf2);
    tree.putClientProperty("JTree.lineStyle", "Angled");
    getContentPane().add(tree, BorderLayout.CENTER);
    DefaultTreeCellRenderer renderer = 
      (DefaultTreeCellRenderer)tree.getCellRenderer();
    renderer.setClosedIcon(new ImageIcon("door.closed.gif"));
    renderer.setOpenIcon(new ImageIcon("door.open.gif"));
    renderer.setLeafIcon(new ImageIcon("world.gif"));
  
  }
  public static void main(String args[]) {
    MainClass tt = new MainClass();
    tt.init();
    tt.setVisible(true);
  }
}





DefaultTreeCellRenderer: setLeafIcon(Icon newIcon)

import java.awt.BorderLayout;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.DefaultTreeModel;
public class MainClass extends JFrame {
  JTree tree;
  DefaultTreeModel treeModel;
  public MainClass() {
    super("Tree Test Example");
    setSize(200, 150);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
  }
  public void init() {
    DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root");
    DefaultMutableTreeNode subroot = new DefaultMutableTreeNode("SubRoot");
    DefaultMutableTreeNode leaf1 = new DefaultMutableTreeNode("Leaf 1");
    DefaultMutableTreeNode leaf2 = new DefaultMutableTreeNode("Leaf 2");
    treeModel = new DefaultTreeModel(root);
    tree = new JTree(treeModel);
    treeModel.insertNodeInto(subroot, root, 0);
    subroot.add(leaf1);
    root.add(leaf2);
    tree.putClientProperty("JTree.lineStyle", "Angled");
    getContentPane().add(tree, BorderLayout.CENTER);
    DefaultTreeCellRenderer renderer = 
      (DefaultTreeCellRenderer)tree.getCellRenderer();
    renderer.setClosedIcon(new ImageIcon("door.closed.gif"));
    renderer.setOpenIcon(new ImageIcon("door.open.gif"));
    renderer.setLeafIcon(new ImageIcon("world.gif"));
  
  }
  public static void main(String args[]) {
    MainClass tt = new MainClass();
    tt.init();
    tt.setVisible(true);
  }
}





DefaultTreeCellRenderer: setOpenIcon(Icon newIcon)

import java.awt.BorderLayout;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.DefaultTreeModel;
public class MainClass extends JFrame {
  JTree tree;
  DefaultTreeModel treeModel;
  public MainClass() {
    super("Tree Test Example");
    setSize(200, 150);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
  }
  public void init() {
    DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root");
    DefaultMutableTreeNode subroot = new DefaultMutableTreeNode("SubRoot");
    DefaultMutableTreeNode leaf1 = new DefaultMutableTreeNode("Leaf 1");
    DefaultMutableTreeNode leaf2 = new DefaultMutableTreeNode("Leaf 2");
    treeModel = new DefaultTreeModel(root);
    tree = new JTree(treeModel);
    treeModel.insertNodeInto(subroot, root, 0);
    subroot.add(leaf1);
    root.add(leaf2);
    tree.putClientProperty("JTree.lineStyle", "Angled");
    getContentPane().add(tree, BorderLayout.CENTER);
    DefaultTreeCellRenderer renderer = 
      (DefaultTreeCellRenderer)tree.getCellRenderer();
    renderer.setClosedIcon(new ImageIcon("door.closed.gif"));
    renderer.setOpenIcon(new ImageIcon("door.open.gif"));
    renderer.setLeafIcon(new ImageIcon("world.gif"));
  
  }
  public static void main(String args[]) {
    MainClass tt = new MainClass();
    tt.init();
    tt.setVisible(true);
  }
}





DefaultTreeCellRenderer: setTextNonSelectionColor(Color newColor)

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;
public class MainClass {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Changed Renderer");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JTree tree = new JTree();
    DefaultTreeCellRenderer renderer = (DefaultTreeCellRenderer) tree.getCellRenderer();
    renderer.setFont(new Font("Dialog", Font.BOLD | Font.ITALIC, 32));
    int rowHeight = tree.getRowHeight();
    if (rowHeight <= 0) {
      tree.setRowHeight(rowHeight - 1);
    }
    Color backgroundSelection = renderer.getBackgroundSelectionColor();
    renderer.setBackgroundSelectionColor(Color.blue);
    renderer.setBackgroundNonSelectionColor(backgroundSelection);
    // Swap text colors
    Color textSelection = renderer.getTextSelectionColor();
    renderer.setTextSelectionColor(Color.green);
    renderer.setTextNonSelectionColor(textSelection);
    JScrollPane scrollPane = new JScrollPane(tree);
    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 150);
    frame.setVisible(true);
  }
}





DefaultTreeCellRenderer: setTextSelectionColor(Color newColor)

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;
public class MainClass {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Changed Renderer");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JTree tree = new JTree();
    DefaultTreeCellRenderer renderer = (DefaultTreeCellRenderer) tree.getCellRenderer();
    renderer.setFont(new Font("Dialog", Font.BOLD | Font.ITALIC, 32));
    int rowHeight = tree.getRowHeight();
    if (rowHeight <= 0) {
      tree.setRowHeight(rowHeight - 1);
    }
    Color backgroundSelection = renderer.getBackgroundSelectionColor();
    renderer.setBackgroundSelectionColor(Color.blue);
    renderer.setBackgroundNonSelectionColor(backgroundSelection);
    // Swap text colors
    Color textSelection = renderer.getTextSelectionColor();
    renderer.setTextSelectionColor(Color.green);
    renderer.setTextNonSelectionColor(textSelection);
    JScrollPane scrollPane = new JScrollPane(tree);
    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 150);
    frame.setVisible(true);
  }
}


Источник — «http://jexp.ru/index.php?title=Java_by_API/javax.swing.tree/DefaultTreeCellRenderer&oldid=2400»