/**
 * MainFrame.java
 * 
 * 該文件用來建立應用程序主界面,并響應按鈕按下后產生的事件
 *
 * Copyright 2004 by 海南大學信息學院
 * @author 溫小斌
 * @version 1.0
 */

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

public class MainFrame extends JFrame implements ActionListener
{
	JPanel panelTop = new JPanel();  //用來設置參數(shù)
	JPanel panelDown = new JPanel();
	MyPanel panelCenter = new MyPanel();  //用來顯示原始的圖片
	MyPanel panelBottom = new MyPanel();  //用來顯示處理過后的圖片

	JLabel labelA = new JLabel();
	JLabel labelQ = new JLabel();
	JLabel labelC = new JLabel();
	JLabel labelR = new JLabel();
	JTextField txtA = new JTextField();  //輸入A值
	JTextField txtQ = new JTextField();  //輸入Q值
	JTextField txtC = new JTextField();  //輸入C值
	JTextField txtR = new JTextField();  //輸入R值
	JButton buttonOK = new JButton();

	public MainFrame()   //構造函數(shù)，初始化窗口
	{
		setTitle("維納濾波顯示位圖");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setSize(500, 500);
		this.getContentPane().setLayout(new BorderLayout());

		labelA.setMinimumSize(new Dimension(30, 20));
		labelA.setPreferredSize(new Dimension(30, 20));
		labelA.setText("A:");
		labelQ.setMinimumSize(new Dimension(30, 20));
		labelQ.setPreferredSize(new Dimension(30, 20));
		labelQ.setText("Q:");
		labelC.setMinimumSize(new Dimension(30, 20));
		labelC.setPreferredSize(new Dimension(30, 20));
		labelC.setText("C:");
		labelR.setMinimumSize(new Dimension(30, 20));
		labelR.setPreferredSize(new Dimension(30, 20));
		labelR.setText("R:");
		txtA.setMinimumSize(new Dimension(40, 20));
		txtA.setPreferredSize(new Dimension(40, 20));
		txtQ.setMinimumSize(new Dimension(40, 20));
		txtQ.setPreferredSize(new Dimension(40, 20));
		txtC.setMinimumSize(new Dimension(40, 20));
		txtC.setPreferredSize(new Dimension(40, 20));
		txtR.setMinimumSize(new Dimension(40, 20));
		txtR.setPreferredSize(new Dimension(40, 20));
		buttonOK.setText("OK");
		buttonOK.addActionListener(this);  //為按鈕添加事件監(jiān)聽
		panelTop.add(labelA);
		panelTop.add(txtA);
		panelTop.add(labelQ);
		panelTop.add(txtQ);
		panelTop.add(labelC);
		panelTop.add(txtC);
		panelTop.add(labelR);
		panelTop.add(txtR);
		panelTop.add(buttonOK);
		this.getContentPane().add(panelTop, BorderLayout.NORTH);
		
		//剛開始顯示兩相同的圖片，filter參數(shù)設置為false,表示不進行濾波
		panelCenter.loadImage("PH02466U.bmp", false, 0, 0, 0, 0);
		panelBottom.loadImage("PH02466U.bmp", false, 0, 0, 0, 0);

		panelDown.setLayout(new GridLayout(0,1));
		panelDown.add(panelCenter);
		panelDown.add(panelBottom);
		this.getContentPane().add(panelDown, BorderLayout.CENTER);

		setVisible(true);
	}

	//響應按鈕事件
	public void actionPerformed(ActionEvent e)
	{
		if(e.getActionCommand().equals("OK"))
		{
			float a = Float.parseFloat(txtA.getText());
			float q = Float.parseFloat(txtQ.getText());
			float c = Float.parseFloat(txtC.getText());
			float r = Float.parseFloat(txtR.getText());
			//對圖片進行濾波，并將濾波后的圖片顯示在下方
			panelBottom.loadImage("PH02466U.bmp.bmp", true, a, q, c, r);
			txtA.setText("");
			txtQ.setText("");
			txtC.setText("");
			txtR.setText("");
		}
	}
}