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

/** Class: GamParametersViewer
 *  Function: To display and modify GamParameters
 */
public class GamParametersViewer extends ParametersViewer implements ActionListener
{
    // Members

    // GUI variables
    Container gamParametersContainer;
    // These Doubles and TextFields allow for the setting of 
    // GamParameters from the GamParametersViewer
    TextField radMinTextField = new TextField(""+((GamParameters)parameters).getRadMin());
    TextField radMaxTextField = new TextField(""+((GamParameters)parameters).getRadMax());
    TextField radIncTextField = new TextField(""+((GamParameters)parameters).getRadInc());
    TextField overlpTextField = new TextField(""+((GamParameters)parameters).getOverlp());
    Double radMin,radMax,radInc,overlp;

    // Constructors
    public GamParametersViewer(Parameters p){
	super(p);
    }

    // Methods
    public static void main(String args[])
	throws IOException,FileNotFoundException{
	GamParametersViewer gamParametersViewer = new GamParametersViewer
	    (new GamParameters());
	gamParametersViewer.run();
    }

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

    public void initComponents(){
	// Parameters come first as ParametersViewer instantiates the 
	// gridBagLayout gridBagLayout and gridBagConstraints gridBagConstraints
	super.initComponents();
	gamParametersContainer = new Container();
	gamParametersContainer.setLayout(gridBagLayout);
	// GamParameter RadMin
	label = new Label("Minimum circle radius");
	gridBagConstraints.anchor=GridBagConstraints.EAST;
	gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;
	gridBagLayout.setConstraints(label,gridBagConstraints);
	gamParametersContainer.add(label);
	radMinTextField.setText(""+((GamParameters)parameters).getRadMin());
	gridBagConstraints.anchor=GridBagConstraints.WEST;
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
	gridBagLayout.setConstraints(radMinTextField,gridBagConstraints);
	gamParametersContainer.add(radMinTextField);
	// GamParameter RadMax
	label = new Label("Maximum circle radius");
	gridBagConstraints.anchor=GridBagConstraints.EAST;         
	gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;  
	gridBagLayout.setConstraints(label,gridBagConstraints);
	gamParametersContainer.add(label);
	radMaxTextField.setText(""+((GamParameters)parameters).getRadMax());
	gridBagConstraints.anchor=GridBagConstraints.WEST;         
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER; 
	gridBagLayout.setConstraints(radMaxTextField,gridBagConstraints);
	gamParametersContainer.add(radMaxTextField);
	// GamParameter RadInc
	label = new Label("Radius Increment");
	gridBagConstraints.anchor=GridBagConstraints.EAST;         
	gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;  
	gridBagLayout.setConstraints(label,gridBagConstraints);
	gamParametersContainer.add(label);
	radIncTextField.setText(""+((GamParameters)parameters).getRadInc());
	gridBagConstraints.anchor=GridBagConstraints.WEST;         
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER; 
	gridBagLayout.setConstraints(radIncTextField,gridBagConstraints);
	gamParametersContainer.add(radIncTextField);
	// GamParameter Overlap
	label = new Label("Circle Overlap");
	gridBagConstraints.anchor=GridBagConstraints.EAST;         
	gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;  
	gridBagLayout.setConstraints(label,gridBagConstraints);		    
	gamParametersContainer.add(label);		    
	overlpTextField.setText(""+((GamParameters)parameters).getOverlp());
	gridBagConstraints.anchor=GridBagConstraints.WEST;         
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER; 
	gridBagLayout.setConstraints(overlpTextField,gridBagConstraints);
	gamParametersContainer.add(overlpTextField);
    }

    public void setDisplay(){
	super.setDisplay();
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
	gridBagLayout.setConstraints(gamParametersContainer,gridBagConstraints);
	frame.add(gamParametersContainer,frame.getComponentCount());
        frame.pack();
    }

    public void parseValues(){
	super.parseValues();
	radMin = new Double(radMinTextField.getText());
	((GamParameters)parameters).setRadMin(radMin.doubleValue());
	radMax = new Double(radMaxTextField.getText());
	((GamParameters)parameters).setRadMax(radMax.doubleValue());
	radInc = new Double(radIncTextField.getText());
	((GamParameters)parameters).setRadInc(radInc.doubleValue());
	overlp = new Double(overlpTextField.getText());
	((GamParameters)parameters).setOverlp(overlp.doubleValue());
    }

    public void setText(){
	super.setText();
	radMinTextField.setText(""+((GamParameters)parameters).getRadMin());
	radMaxTextField.setText(""+((GamParameters)parameters).getRadMax());
	radIncTextField.setText(""+((GamParameters)parameters).getRadInc());
	overlpTextField.setText(""+((GamParameters)parameters).getOverlp());
    }

    public void actionPerformed(ActionEvent actionEvent){
	String actionCommand = new String(actionEvent.getActionCommand());
	if(actionCommand.equals("load parameters")){
	    System.out.println("Load Parameters File");
	    FileDialog fileDialog = new FileDialog(new Frame());
	    FileFil fileFil = new FileFil(fileDialog,".pars");
	    fileDialog.setTitle("Load Gam Parameters File");
	    fileDialog.setFilenameFilter(fileFil);
	    fileDialog.setVisible(true);
	    if (fileDialog.getFile()==null) {return;}
	    File file = new File(fileDialog.getDirectory(),fileDialog.getFile());
	    //try{
		parameters = new GamParameters(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);
	}
    }
}