Tree Changed Renderer : Tree Renderer Editor « Swing JFC « Java

1. Java
2. Swing JFC
3. Tree Renderer Editor

Tree Changed Renderer

  
/*
Definitive Guide to Swing for Java 2, Second Edition
By John Zukowski     
ISBN: 1-893115-78-X
Publisher: APress
*/

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 TreeChangedRenderer {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Changed Renderer");
    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);
    }

    // Swap background colors
    Color backgroundSelection = renderer.getBackgroundSelectionColor();
    renderer.setBackgroundSelectionColor(renderer
        .getBackgroundNonSelectionColor());
    renderer.setBackgroundNonSelectionColor(backgroundSelection);

    // Swap text colors
    Color textSelection = renderer.getTextSelectionColor();
    renderer.setTextSelectionColor(renderer.getTextNonSelectionColor());
    renderer.setTextNonSelectionColor(textSelection);

    JScrollPane scrollPane = new JScrollPane(tree);
    frame.getContentPane().add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 150);
    frame.setVisible(true);
  }
}

           
         
    
  

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