fontdialog.java

用JAVA做的小记事本系统

//FontDialog.java

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

public class FontDialog extends JDialog implements ActionListener{
	
	JLabel lFontSet = new JLabel("字体",JLabel.CENTER);
	
	JLabel lSizeSet = new JLabel("字号",JLabel.CENTER);
	
	
	JLabel lColorSet = new JLabel("颜色",JLabel.CENTER);	
	
	
	JComboBox fontList = this.buildFontList();
	
	JComboBox sizeList = this.buildSizeList();	
	
	JButton bColorChoose = new JButton("选择颜色");
	
	
	JButton bOK = new JButton("确定");
	
	JButton bCancel = new JButton("取消");
	
	Color newColor = Color.BLACK;  //初值为默认颜色
	
	String newFontName = "Times New Roman"; //初值为默认字体名称
	
	int newSize = 16;  //初值为默认字体大小
	
	
	public FontDialog(MainFrame superWindow){
		
		super(superWindow,"字体设置",true);
		
		Container c = this.getContentPane();
		
		c.setLayout(new GridLayout(4,2,5,5));
		
		c.add(lFontSet);
		c.add(fontList);
		
		c.add(lSizeSet);
		c.add(sizeList);
		
		
		c.add(lColorSet);
		c.add(bColorChoose);
		
		c.add(bOK);
		c.add(bCancel);
		
		this.setLocation(300,300);
		this.setSize(260,180);
		
		bColorChoose.addActionListener(this);			
		
		bOK.addActionListener(this);
		
		bCancel.addActionListener(this);
		
	}
	
	public void actionPerformed(ActionEvent e){
		
		Object evtSrc = e.getSource();
		
		if(evtSrc == bColorChoose){
			
			newColor = JColorChooser.showDialog(this,"选择字体颜色",Color.BLACK);
		}
		
		
		//点击确定按钮，则设置新的字体
		
		if(evtSrc == bOK){
			
			newFontName = (String)fontList.getSelectedItem();
			
			newSize = Integer.parseInt((String)sizeList.getSelectedItem());
			
			this.dispose();			
					
		}
		
		if(evtSrc == bCancel){
			
			
			//取消时还原成初值
			newColor = Color.BLACK;
			
			newFontName = "Times New Roman";
			
			newSize = 16;
			
			this.dispose();
		}		

	}
	
	
	public String getNewFontName(){
		
		return newFontName;
	}
	
	public int getNewSize(){
		
		return newSize;
	}
	
	public Color getNewColor(){
		
		return newColor;
	}
	
	JComboBox buildFontList(){
		
		JComboBox fontList;
		
		Vector v = new Vector();
		
		v.addElement("楷体");
		v.addElement("宋体");
		v.addElement("黑体");
		v.addElement("幼圆");
		v.addElement("隶书");
		v.addElement("华文新魏");
		v.addElement("Arial");
		v.addElement("Times New Roman");
		v.addElement("Verdana");
		v.addElement("Comic Sans MS");
		v.addElement("Tahoma");
		
		fontList = new JComboBox(v);
		
	
		
		String[] fontNames = GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames();
		
		fontList = new JComboBox(fontNames);
		
		return  fontList;
		
	}
	
	JComboBox buildSizeList(){
		
		JComboBox sizeList;
		
		String[] sizeValues = new String[30];
		
		for(int i=0;i<sizeValues.length;i++){
			
			sizeValues[i] = Integer.toString(8 + i*2);
			
		}
		
		sizeList = new JComboBox(sizeValues);
		
		return sizeList;		
	}
						
}