TextAndGraphics - if(e.getSource == textField...

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/* * File: TextAndGraphics.java * -------------------------- * This program shows an example of using text and two different * graphics canvases in a ConsoleProgram */ import acm.program.*; import acm.graphics.*; import java.awt.*; import java.awt.event.*; import javax.swing.*; public class TextAndGraphics extends ConsoleProgram { public void init() { setLayout(new GridLayout(1, 3)); // Note: console is first element of our layout leftCanvas = new GCanvas(); add(leftCanvas); rightCanvas = new GCanvas(); add(rightCanvas); textField = new JTextField(10); add(new JLabel("Some text"), SOUTH); add(textField, SOUTH); textField.addActionListener(this); add(new JButton("Draw left"), SOUTH); add(new JButton("Draw right"), SOUTH); addActionListeners(); } public void actionPerformed(ActionEvent e) {
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Unformatted text preview: if (e.getSource() == textField) { println("You typed: " + textField.getText()); } String cmd = e.getActionCommand(); if (cmd.equals("Draw left")) { leftCanvas.add(createFilledRect(), 20, leftY); leftY += SPACER; } else if (cmd.equals("Draw right")) { rightCanvas.add(createFilledRect(), 20, rightY); rightY += SPACER; } } private GRect createFilledRect() { // Yes, we should have made the 50 and 20 constants. .. GRect rect = new GRect(50, 20); rect.setFilled(true); return rect; } /* Constants */ private static double SPACER = 30; /* Private instance variables */ private GCanvas leftCanvas; private GCanvas rightCanvas; private JTextField textField; private double leftY = 10; private double rightY = 10; }...
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This note was uploaded on 02/18/2010 for the course CS 106A taught by Professor Sahami,m during the Fall '08 term at Stanford.

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TextAndGraphics - if(e.getSource == textField...

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