//*************************************************************
//Java applet
//	  「GrayFilterTest」
//
//　　　　　　　　　　作　成　者：ルート高菜　　　
//　　　　　　　　　　作成開始月：２００７／２
//　　　　　　　　　　最終更新月：２００７／２      [TN100/J90]
//*************************************************************
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.swing.*;

public class GrayFilterTest extends JApplet implements ActionListener {
	//Eclipseの場合、シリアライズ可能クラスでこれがないと警告が出る
	private static final long serialVersionUID=0;
	//
	Image image;
	GrayFilterTestPanel panel;
	//
	JComboBox brightCombo,grayCombo;
	JButton changeButton,formatButton;
	//
	public void init(){
		//
		image=getImage(getDocumentBase(),"natu03.jpg");
		//
		JPanel panel2=new JPanel();
		panel2.add(new JLabel("色調を明るく："));
		panel2.add(brightCombo=new JComboBox(new String[]{"false","true"}));
		panel2.add(new JLabel("　グレーの割合："));
		panel2.add(grayCombo=new JComboBox(new String[]{"0","10","20","30","40","50","60","70","80","90","100"}));
		panel2.add(changeButton=new JButton("試行"));
		panel2.add(formatButton=new JButton("元に戻す"));
		//コンテナ枠
		Container cp=getContentPane();
		cp.add(panel=new GrayFilterTestPanel(image),BorderLayout.CENTER);
		cp.add(panel2,BorderLayout.SOUTH);
		//
		changeButton.addActionListener(this);
		formatButton.addActionListener(this);
	}
	//
	public void actionPerformed(ActionEvent e) {
		if(e.getSource()==changeButton){
			//色調
			boolean bright;
			if(brightCombo.getSelectedIndex()==0){
				bright=false;
			}else{
				bright=true;
			}
			//割合
			int gray=10*grayCombo.getSelectedIndex();
			//グレースケールに変換
			ImageFilter filter=new GrayFilter(bright,gray);
			ImageProducer producer=new FilteredImageSource(image.getSource(),filter);
			panel.image=createImage(producer);
			//
			repaint();
		}else if(e.getSource()==formatButton){
			//
			panel.setImage(image);
			//
			repaint();
		}
	}
}