package uk.ac.leeds.ccg.cluster;
import java.io.*;
import java.awt.*;
import java.awt.event.*;

/** Class: ScanTimeParametersViewer
 *  Function: To display and modify ScanTimeParameters
 */
public class ScanTimeParametersViewer extends TimeParametersViewer implements ActionListener
{
    // Members
    Container scanTimeParametersContainer;
    // These Doubles and TextFields allow for the setting of 
    // ScanTimeParameters from the ScanTimeParametersViewer
    Double w;
    TextField wTextField = new TextField(""+((ScanTimeParameters)parameters).getW());
    Checkbox filterCheckbox = new Checkbox();
    // filterCheckbox.setState(((ScanTimeParameters)parameters).getFilter());
    // filterCheckbox.setLabel("Filter");
    Double filt_step;
    TextField filt_stepTextField = new TextField(""+((ScanTimeParameters)parameters).getFilt_step());

    // Constructors
    public ScanTimeParametersViewer(TimeParameters p){
	super(p);
    }

    // Methods
    public static void main(String args[])
	throws IOException,FileNotFoundException{
	ScanTimeParametersViewer scanTimeParametersViewer = new ScanTimeParametersViewer (new ScanTimeParameters());
	scanTimeParametersViewer.run();
    }

    public void run(){
	initComponents();
	setDisplay();
    }

    public void initComponents(){
	// TimeParameters come first as TimeParametersViewer instantiates the 
	// gridBagLayout gridBagLayout and gridBagConstraints gridBagConstraints
	super.initComponents();
	scanTimeParametersContainer = new Container();
	scanTimeParametersContainer.setLayout(gridBagLayout);
	// ScanTimeParameter w
	label = new Label("Width of window");
	gridBagConstraints.anchor=GridBagConstraints.EAST;
	gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;
	gridBagLayout.setConstraints(label,gridBagConstraints);
	scanTimeParametersContainer.add(label);
	wTextField.setText(""+((ScanTimeParameters)parameters).getW());
	gridBagConstraints.anchor=GridBagConstraints.WEST;
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
	gridBagLayout.setConstraints(wTextField,gridBagConstraints);
	scanTimeParametersContainer.add(wTextField);

	// Filter 
        // label = new Label("Filter ");
        // gridBagConstraints.anchor=GridBagConstraints.EAST;
        // gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;
        // gridBagLayout.setConstraints(label,gridBagConstraints);
        // scanTimeParametersContainer.add(label);
	filterCheckbox.setState(((ScanTimeParameters)parameters).getFilter());
	filterCheckbox.setLabel("Filter");
        // gridBagConstraints.anchor=GridBagConstraints.WEST;
        // gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
        // gridBagLayout.setConstraints(filterCheckbox,gridBagConstraints);
	scanTimeParametersContainer.add(filterCheckbox);

        // ScanTimeParameter filt_step
        label = new Label("Filter step ");
        gridBagConstraints.anchor=GridBagConstraints.EAST;
        gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;
        gridBagLayout.setConstraints(label,gridBagConstraints);
        scanTimeParametersContainer.add(label);
        filt_stepTextField.setText(""+((ScanTimeParameters)parameters).getFilt_step());
        gridBagConstraints.anchor=GridBagConstraints.WEST;
        gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
        gridBagLayout.setConstraints(filt_stepTextField,gridBagConstraints);
        scanTimeParametersContainer.add(filt_stepTextField);
    }

    public void setDisplay(){
	super.setDisplay();
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
	gridBagLayout.setConstraints(scanTimeParametersContainer,gridBagConstraints);
	frame.add(scanTimeParametersContainer,frame.getComponentCount());
	frame.setTitle("TimeParameters - Scan");
        frame.pack();
    }
    
    public void parseValues(){
	super.parseValues();
	w = new Double(wTextField.getText());
	((ScanTimeParameters)parameters).setW((int)w.doubleValue());
	((ScanTimeParameters)parameters).setFilter(filterCheckbox.getState());
	filt_step = new Double(filt_stepTextField.getText());
        ((ScanTimeParameters)parameters).setFilt_step((int)filt_step.doubleValue());
    }

    public void setText(){
	super.setText();
	wTextField.setText(""+((ScanTimeParameters)parameters).getW());
	filterCheckbox.setState(((ScanTimeParameters)parameters).getFilter());
	filt_stepTextField.setText(""+((ScanTimeParameters)parameters).getFilt_step());
    }

    public void actionPerformed(ActionEvent actionEvent){
	String actionCommand = new String(actionEvent.getActionCommand());
	if(actionCommand.equals("load parameters")){
	    System.out.println("Load TimeParameters File");
	    fileDialog = new FileDialog(new Frame());
	    fileFil = new FileFil(fileDialog,".pars");
	    fileDialog.setTitle("Load Scan TimeParameters File");
	    fileDialog.setFilenameFilter(fileFil);
	    fileDialog.setVisible(true);
	    if (fileDialog.getFile()==null) {return;}
	    file = new File(fileDialog.getDirectory(),fileDialog.getFile());
	    try{
		parameters = new ScanTimeParameters(file);
		setText();
		parseValues();
		//dbase.load(file);
	    }
	    catch(IOException error){
		System.err.println("Error loading file "+error);
		return;
	    }
	}
	else{
	    // This works because calling super.actionPerformed(actionEvent) from this class
	    // uses the methods in this class first if they exist.
	    super.actionPerformed(actionEvent);
	}
    }
}