Triangle tools from the text book Programming Processors in Java.
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Triangle-Tools/Triangle.Compiler/src/main/java/Triangle/TreeDrawer/DrawerPanel.java

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/*
* @(#)DrawerPanel.java 2.1 2003/10/07
*
* Copyright (C) 1999, 2003 D.A. Watt and D.F. Brown
* Dept. of Computing Science, University of Glasgow, Glasgow G12 8QQ Scotland
* and School of Computer and Math Sciences, The Robert Gordon University,
* St. Andrew Street, Aberdeen AB25 1HG, Scotland.
* All rights reserved.
*
* This software is provided free for educational use only. It may
* not be used for commercial purposes without the prior written permission
* of the authors.
*/
package Triangle.TreeDrawer;
import java.awt.Dimension;
import java.awt.Graphics;
import javax.swing.JPanel;
class DrawerPanel extends JPanel {
/**
*
*/
private static final long serialVersionUID = 565914745506889669L;
private Drawer drawer;
public DrawerPanel(Drawer drawer) {
setPreferredSize(new Dimension(4096, 4096));
this.drawer = drawer;
}
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
drawer.paintAST(g);
}
}