fontdialog.java

基于java开发的OS中经典PV算法：生产者和消费者算法的演示。

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
//import javax.swing.event.*;

public class FontDialog{
	public static void main(String[] args){
		FontDialogFrame frame=new FontDialogFrame();
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}
}

class FontDialogFrame extends JFrame{
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	public FontDialogFrame(){
		setTitle("Pxg-GBLTest");
		setSize(DEFAULT_W,DEFAULT_H);
		
		GridBagLayout layout=new GridBagLayout();
		setLayout(layout);
		
		ActionListener listener=new FontAction();
		
		JLabel faceLabel=new JLabel("Face:");
		
		face=new JComboBox(new String[]{
			"Serif","华文琥珀","华文彩云","隶书"
		});
		face.addActionListener(listener);
		
		JLabel sizeLabel=new JLabel("Size:");
		size=new JComboBox(new String[]{
			"8","18","28","38"
		});
		
		size.addActionListener(listener);
		
		bold=new JCheckBox("Bold");
		bold.setBackground(new Color(255,0,0));
		bold.addActionListener(listener);
		
		italic=new JCheckBox("Italic");
		italic.addActionListener(listener);
		
		sample=new JTextArea();
		sample.setText("测试GBL布局");
		sample.setEditable(true);
		sample.setLineWrap(true);
		sample.setBorder(BorderFactory.createEtchedBorder());
		
		add(faceLabel,new GBC(0,0).setAnchor(GBC.EAST));
		add(face,new GBC(1,0).setFill(GBC.HORIZONTAL).setWeight(100,0).setInsets(1));
		add(sizeLabel,new GBC(0,1).setAnchor(GBC.EAST));
		add(size,new GBC(1,1).setFill(GBC.HORIZONTAL).setWeight(100,0).setInsets(1));
		add(bold,new GBC(0,2,2,1).setAnchor(GBC.CENTER).setWeight(100,100));
		add(italic,new GBC(0,3,2,1).setAnchor(GBC.CENTER).setWeight(100,100));
		add(sample,new GBC(2,0,1,4).setFill(GBC.BOTH).setWeight(100,100));
		
	}
	public static final int DEFAULT_W=600;
	public static final int DEFAULT_H=400;
	
	private JComboBox face;
	private JComboBox size;
	private JCheckBox bold;
	private JCheckBox italic;
	private JTextArea sample;
	
	private class FontAction implements ActionListener{
		public void actionPerformed(ActionEvent event){
			String fontFace=(String)face.getSelectedItem();
			int fontStyle=(bold.isSelected()?Font.ITALIC:0)
				+(italic.isSelected()?Font.ITALIC:0);
			int fontSize=Integer.parseInt((String)size.getSelectedItem());
			Font font=new Font(fontFace,fontStyle,fontSize);
			sample.setFont(font);
			sample.repaint();
		}
	}
}