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package com.iailab.netsdk.demo.frame.TargetRecognition;
 
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.HeadlessException;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import java.util.concurrent.ExecutionException;
 
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.SwingWorker;
 
import com.iailab.netsdk.common.PaintPanel;
import com.iailab.netsdk.common.Res;
import com.iailab.netsdk.demo.module.TargetRecognitionModule;
import com.iailab.netsdk.lib.ToolKits;
 
public class DownloadPictureDialog extends JDialog{
 
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
 
    public DownloadPictureDialog() {
        setTitle(Res.string().getDownLoadPicture());
        setLayout(new BorderLayout());
        setModal(true);  
        pack();
        setSize(380, 500);
        setResizable(false);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(DISPOSE_ON_CLOSE);   // 释放窗体
        
        JLabel picPathLabel = new JLabel(Res.string().getPicturePath()+":", JLabel.CENTER);
        picPathTextField = new JTextField();
        downloadBth = new JButton(Res.string().getDownLoadPicture());
        
        picPathTextField.setPreferredSize(new Dimension(180, 20));
        downloadBth.setPreferredSize(new Dimension(80, 20));
        
        paintPanel = new PaintPanel();
        paintPanel.setPreferredSize(new Dimension(360, 450));
        
        setLayout(new FlowLayout());
        add(picPathLabel);
        add(picPathTextField);
        add(downloadBth);
        add(paintPanel);
        
        downloadBth.addActionListener(new ActionListener() {    
            @Override
            public void actionPerformed(ActionEvent arg0) {
                SwingUtilities.invokeLater(new Runnable() {                
                    @Override
                    public void run() {
                        paintPanel.setOpaque(true);
                        paintPanel.repaint();
                        downloadBth.setEnabled(false);
                    }
                });
                
                downloadPicture();
            }
        });
        
        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                dispose();
            }
        });
    }
    
    private void downloadPicture() {
        new SwingWorker<Boolean, Integer>() {    
            String szFileName = "";                  // 要下载的图片路径
            String pszFileDst = "";                   // 保存图片的路径
            
            @Override
            protected Boolean doInBackground() {
                if(picPathTextField.getText().isEmpty()) {
                    JOptionPane.showMessageDialog(null, Res.string().getEnterPicturePath(), Res.string().getErrorMessage(), JOptionPane.ERROR_MESSAGE);
                    return false;
                }
                
                szFileName = picPathTextField.getText();    
                pszFileDst = "./person.jpg";                  
                
                File file = new File(pszFileDst);
                if(file.exists()) {
                    file.delete();
                }
                
                if(!TargetRecognitionModule.downloadPersonPic(szFileName, pszFileDst)) {
                    return false;
                }
 
                return true;
            }    
            
            @Override
            protected void done() {
                if(picPathTextField.getText().isEmpty()) {
                    return;
                }
                
                try {
                    if(get()) {                
                        // 下载成功后，面板上显示下载的图片
                        ToolKits.openPictureFile(pszFileDst, paintPanel);    
                    } else {
                        JOptionPane.showMessageDialog(null, ToolKits.getErrorCodeShow(), Res.string().getErrorMessage(), JOptionPane.ERROR_MESSAGE);
                    }
                } catch (HeadlessException e) {
                    e.printStackTrace();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                } catch (ExecutionException e) {
                    e.printStackTrace();
                }
                downloadBth.setEnabled(true);
            }
        }.execute();
    }
    
    private JTextField picPathTextField;
    private PaintPanel paintPanel;
    private JButton downloadBth;
}