filedialogtest.java

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//: FileDialogTest.java
// Demonstration of File dialog boxes
import java.awt.*;

public class FileDialogTest extends Frame {
	TextField filename = new TextField();
	TextField directory = new TextField();
	Button open = new Button("Open");
	Button save = new Button("Save");

	public FileDialogTest() {
		setTitle("File Dialog Test");
		Panel p = new Panel();
		p.setLayout(new FlowLayout());
		p.add(open);
		p.add(save);
		add("South", p);
		directory.setEditable(false);
		filename.setEditable(false);
		p = new Panel();
		p.setLayout(new GridLayout(2,1));
		p.add(filename);
		p.add(directory);
		add("North", p);
	}

	public boolean handleEvent(Event evt) {
		if(evt.id == Event.WINDOW_DESTROY)
			System.exit(0);
		else
			return super.handleEvent(evt);
		return true;
	}
	
	public boolean action(Event evt, Object arg) {
		if(evt.target.equals(open)) {
			// Two arguments, defaults to open file:
			FileDialog d = new FileDialog(this,
			"What file do you want to open?");
			d.setFile("*.java"); // Filename filter
			d.setDirectory("."); // Current directory
			d.show();
			String openFile;
			if((openFile = d.getFile()) != null) {
				filename.setText(openFile);
				directory.setText(d.getDirectory());
			} else {
				filename.setText("You pressed cancel");
				directory.setText("");
			}
		}
		else if(evt.target.equals(save)) {
			FileDialog d = new FileDialog(this,
				"What file do you want to save?",
			FileDialog.SAVE);
			d.setFile("*.java");
			d.setDirectory(".");
			d.show();
			String saveFile;
			if((saveFile = d.getFile()) != null) {
				filename.setText(saveFile);
				directory.setText(d.getDirectory());
			} else {
				filename.setText("You pressed cancel");
				directory.setText("");
			}
		}
		else
			return super.action(evt, arg);
		return true;
	}

	public static void main(String[] args) {
		Frame f = new FileDialogTest();
		f.resize(250,110);
		f.show();
	}
} ///:~