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61 lines
1.6 KiB
61 lines
1.6 KiB
/*
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* @(#)Drawer.java 2.1 2003/10/07
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*
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* Copyright (C) 1999, 2003 D.A. Watt and D.F. Brown
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* Dept. of Computing Science, University of Glasgow, Glasgow G12 8QQ Scotland
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* and School of Computer and Math Sciences, The Robert Gordon University,
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* St. Andrew Street, Aberdeen AB25 1HG, Scotland.
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* All rights reserved.
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*
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* This software is provided free for educational use only. It may
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* not be used for commercial purposes without the prior written permission
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* of the authors.
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*/
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package Triangle.TreeDrawer;
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import java.awt.Dimension;
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import java.awt.Font;
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import java.awt.FontMetrics;
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import java.awt.Graphics;
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import java.awt.Point;
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import Triangle.AbstractSyntaxTrees.Program;
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public class Drawer {
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private DrawerFrame frame;
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private DrawerPanel panel;
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private Program theAST;
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private DrawingTree theDrawing;
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// Draw the AST representing a complete program.
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public void draw(Program ast) {
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theAST = ast;
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panel = new DrawerPanel(this);
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frame = new DrawerFrame(panel);
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Font font = new Font("SansSerif", Font.PLAIN, 12);
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frame.setFont(font);
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FontMetrics fontMetrics = frame.getFontMetrics(font);
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LayoutVisitor layout = new LayoutVisitor(fontMetrics);
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theDrawing = (DrawingTree) theAST.visit(layout, null);
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theDrawing.position(new Point(2048, 10));
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frame.setVisible(true);
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}
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public void paintAST(Graphics g) {
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g.setColor(panel.getBackground());
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Dimension d = panel.getSize();
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g.fillRect(0, 0, d.width, d.height);
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if (theDrawing != null) {
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theDrawing.paint(g);
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}
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}
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}
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