package uk.ac.leeds.ccg.cluster;
/** Class: ParametersViewer
 *  Function: To display and modify Parameters
 */
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import uk.ac.leeds.ccg.geotools.misc.*;

public class ParametersViewer extends Panel implements ActionListener{

    // Members
    File file;
    //FilenameFilter filenameFilter;
    FileFil fileFil;
    FileDialog fileDialog;
    Parameters parameters;
    Label label;
    // These Textfield, Double Choice and checkboxes allow for the 
    // setting of Parameters from the ParametersViewer
    Double thresh,popMin,canMin,hH,meas,minPnt,maxSam,maxMC,maxRep;
    TextField threshTextField,popMinTextField,canMinTextField,hHTextField;
    TextField minPntTextField,maxSamTextField,maxMCTextField,maxRepTextField;
    Choice measChoice;
    Checkbox animateCheckbox, excessCheckbox;
    MenuBar menuBar;
    Menu fileMenu;
    MenuItem loadParametersMenuItem,saveParametersMenuItem,closeMenuItem;
    Container parametersContainer,buttonContainer;
    GridBagLayout gridBagLayout;
    GridBagConstraints gridBagConstraints;
    Button applyButton,defaultButton,significanceTestParametersButton;
    Frame frame;
    String actionCommand;
    boolean alternator=true;

    public ParametersViewer(){}
    
    public ParametersViewer(Parameters parameters){
	this.parameters = parameters;
	excessCheckbox = new Checkbox();
	excessCheckbox.setState( parameters.getExcess() );
	excessCheckbox.setLabel("Excess");
	animateCheckbox = new Checkbox();
	animateCheckbox.setState(parameters.getAnimate());
	animateCheckbox.setLabel("Animate");
	//threshTextField = new TextField(""+parameters.getSignificanceThreshold());
	threshTextField = new TextField(""+FormatedString.format(""+parameters.getSignificanceThreshold(),4).trim());
	popMinTextField = new TextField(""+parameters.getMinPopSize());
	canMinTextField = new TextField(""+parameters.getMinIncidenceCount());
	hHTextField = new TextField(""+parameters.getMonteCarloRejectionCount());
	measChoice = new Choice();
	measChoice.add("observed - expected");
	measChoice.add("observed / expected");
	measChoice.add("1 - probability of result");
	measChoice.select(parameters.getStatType()-1);
	minPntTextField = new TextField(""+parameters.getMinPointCount());
	maxSamTextField = new TextField(""+parameters.getBootstrapSampleSize());
	maxMCTextField = new TextField(""+parameters.getMonteCarloSampleSize());
	maxRepTextField = new TextField(""+parameters.getMultipleTestReruns());
    }

    // Methods
    public static void main(String args[]) throws IOException,FileNotFoundException{
	ParametersViewer pv = new ParametersViewer(new Parameters());
	pv.run();
    }

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

    public void initComponents(){
	// Set menu bar
	menuBar = new MenuBar();
	fileMenu = new Menu();
        fileMenu.setLabel("File");
        loadParametersMenuItem = new MenuItem();
        loadParametersMenuItem.addActionListener(this);
        loadParametersMenuItem.setActionCommand("load parameters");
        loadParametersMenuItem.setLabel("Load Parameters");
        fileMenu.add(loadParametersMenuItem);
        saveParametersMenuItem = new MenuItem();
        saveParametersMenuItem.addActionListener(this);
        saveParametersMenuItem.setActionCommand("save parameters");
        saveParametersMenuItem.setLabel("Save Parameters");
        fileMenu.add(saveParametersMenuItem);
        closeMenuItem = new MenuItem();
        closeMenuItem.addActionListener(this);
        closeMenuItem.setActionCommand("close");
        closeMenuItem.setLabel("Close");
        fileMenu.add(closeMenuItem);
	menuBar.add(fileMenu);
	// Display parametersContainer
	gridBagLayout = new GridBagLayout();
	gridBagConstraints = new GridBagConstraints();	
	parametersContainer = new Container();
	parametersContainer.setLayout(gridBagLayout);
	// Parameter thresh
	label = new Label("Significance Threshold");
	gridBagConstraints.anchor=GridBagConstraints.EAST;
	gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;
	gridBagLayout.setConstraints(label,gridBagConstraints);
	parametersContainer.add(label);
	threshTextField.setText(""+FormatedString.format(""+parameters.getSignificanceThreshold(),4));
	gridBagConstraints.anchor=GridBagConstraints.WEST;
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
	gridBagLayout.setConstraints(threshTextField,gridBagConstraints);
	parametersContainer.add(threshTextField);
        // Parameter popMin
        label = new Label("Minimum Population Size");
	gridBagConstraints.anchor=GridBagConstraints.EAST;
	gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;
	gridBagLayout.setConstraints(label,gridBagConstraints);
	parametersContainer.add(label);
	popMinTextField.setText(""+parameters.getMinPopSize());
	gridBagConstraints.anchor=GridBagConstraints.WEST;
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
	gridBagLayout.setConstraints(popMinTextField,gridBagConstraints);
	parametersContainer.add(popMinTextField);
        // Parameter canMin
	label = new Label("Minimum Incidence Count");
	gridBagConstraints.anchor=GridBagConstraints.EAST;
	gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;
	gridBagLayout.setConstraints(label,gridBagConstraints);
	parametersContainer.add(label);
	canMinTextField.setText(""+parameters.getMinIncidenceCount());
	gridBagConstraints.anchor=GridBagConstraints.WEST;
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
	gridBagLayout.setConstraints(canMinTextField,gridBagConstraints);
	parametersContainer.add(canMinTextField);
        // Parameter hH
	label = new Label("Monte Carlo Rejection Count");
	gridBagConstraints.anchor=GridBagConstraints.EAST;
	gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;
	gridBagLayout.setConstraints(label,gridBagConstraints);
	parametersContainer.add(label);
	hHTextField.setText(""+parameters.getMonteCarloRejectionCount());
	gridBagConstraints.anchor=GridBagConstraints.WEST;
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
	gridBagLayout.setConstraints(hHTextField,gridBagConstraints);
	parametersContainer.add(hHTextField);
	// Parameter meas
	label = new Label("Type of Result");
	gridBagConstraints.anchor=GridBagConstraints.EAST;
	gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;
	gridBagLayout.setConstraints(label,gridBagConstraints);
	parametersContainer.add(label);
	measChoice.select(parameters.getStatType()-1);
	gridBagConstraints.anchor=GridBagConstraints.WEST;
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
	gridBagLayout.setConstraints(measChoice,gridBagConstraints);
	parametersContainer.add(measChoice);
	// Parameter minPnt
	label = new Label("Minimum Point Count");
	gridBagConstraints.anchor=GridBagConstraints.EAST;
	gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;
	gridBagLayout.setConstraints(label,gridBagConstraints);
	parametersContainer.add(label);
	minPntTextField.setText(""+parameters.getMinPointCount());
	gridBagConstraints.anchor=GridBagConstraints.WEST;
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
	gridBagLayout.setConstraints(minPntTextField,gridBagConstraints);
	parametersContainer.add(minPntTextField);
	// Parameter maxSam
	label = new Label("Number of Bootstrap Samples");
	gridBagConstraints.anchor=GridBagConstraints.EAST;
	gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;
	gridBagLayout.setConstraints(label,gridBagConstraints);
	parametersContainer.add(label);
	maxSamTextField.setText(""+parameters.getBootstrapSampleSize());               
	gridBagConstraints.anchor=GridBagConstraints.WEST;
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
	gridBagLayout.setConstraints(maxSamTextField,gridBagConstraints);
	parametersContainer.add(maxSamTextField);
        // Parameter maxMC
	label = new Label("Number of Monte Carlo Samples");
	gridBagConstraints.anchor=GridBagConstraints.EAST;
	gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;
	gridBagLayout.setConstraints(label,gridBagConstraints);
	parametersContainer.add(label);
	maxMCTextField.setText(""+parameters.getMonteCarloSampleSize());               
	gridBagConstraints.anchor=GridBagConstraints.WEST;
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
	gridBagLayout.setConstraints(maxMCTextField,gridBagConstraints);
	parametersContainer.add(maxMCTextField);
	// Parameter maxRep
	label = new Label("Number of Multiple Test Reruns");
        gridBagConstraints.anchor=GridBagConstraints.EAST;
	gridBagConstraints.gridwidth=GridBagConstraints.RELATIVE;
	gridBagLayout.setConstraints(label,gridBagConstraints);
	parametersContainer.add(label);
	maxRepTextField.setText(""+parameters.getMultipleTestReruns());                
	gridBagConstraints.anchor=GridBagConstraints.WEST;
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
	gridBagLayout.setConstraints(maxRepTextField,gridBagConstraints);
	parametersContainer.add(maxRepTextField);
	// Set buttonContainer and checkbox
	buttonContainer = new Container();
	buttonContainer.setLayout(gridBagLayout);
        applyButton = new Button();
	applyButton.setLabel("Apply");
	applyButton.addActionListener(this);
	applyButton.setActionCommand("apply");
	buttonContainer.add(applyButton);
        defaultButton = new Button();
	defaultButton.setLabel("Default");
	defaultButton.addActionListener(this);
	defaultButton.setActionCommand("default");
	buttonContainer.add(defaultButton);
        significanceTestParametersButton = new Button();
	significanceTestParametersButton.setLabel("Significance Test Parameters");
	significanceTestParametersButton.addActionListener(this);
	significanceTestParametersButton.setActionCommand("significance test parameters");
	buttonContainer.add(significanceTestParametersButton);
        animateCheckbox.setState(parameters.getAnimate());
	buttonContainer.add(animateCheckbox);
	excessCheckbox.setState( parameters.getExcess() );
	buttonContainer.add( excessCheckbox );
    }

    public void setDisplay(){
	// Set frame
	frame = new Frame("Parameters");
	frame.setMenuBar(getMenuBar());
	frame.setLayout(gridBagLayout); 
	// Add buttonContainer
	gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
	gridBagLayout.setConstraints(buttonContainer,gridBagConstraints);
	frame.add(buttonContainer,frame.getComponentCount());
	frame.pack();
	frame.setVisible(true);
    }
    
    public MenuBar getMenuBar(){return menuBar;}
    
    public void parseValues(){
	parameters.setAnimate(animateCheckbox.getState()); 
	parameters.setExcess(excessCheckbox.getState()); 
	thresh = new Double(threshTextField.getText());
	parameters.setSignificanceThreshold(thresh.doubleValue());
	popMin = new Double(popMinTextField.getText());
	parameters.setMinPopSize(popMin.doubleValue());
	canMin = new Double(canMinTextField.getText()); 
	parameters.setMinIncidenceCount(canMin.doubleValue());
	hH = new Double(hHTextField.getText());
	parameters.setMonteCarloRejectionCount(hH.doubleValue());
	meas = new Double(measChoice.getSelectedIndex()+1); 
	parameters.setStatType((int)meas.doubleValue());
	minPnt = new Double(minPntTextField.getText()); 
	parameters.setMinPointCount((int)minPnt.doubleValue());
	maxSam = new Double(maxSamTextField.getText()); 
	parameters.setBootstrapSampleSize((int)maxSam.doubleValue());
	maxMC = new Double(maxMCTextField.getText()); 
	parameters.setMonteCarloSampleSize((int)maxMC.doubleValue());
	maxRep = new Double(maxRepTextField.getText()); 
	parameters.setMultipleTestReruns((int)maxRep.doubleValue());
    }

    public void setText(){
	animateCheckbox.setState(parameters.getAnimate());
	excessCheckbox.setState( parameters.getExcess() );
	threshTextField.setText(""+FormatedString.format(""+parameters.getSignificanceThreshold(),4).trim());
	popMinTextField.setText(""+parameters.getMinPopSize());
	canMinTextField.setText(""+parameters.getMinIncidenceCount());
	hHTextField.setText(""+parameters.getMonteCarloRejectionCount());
	measChoice.select(parameters.getStatType()-1);
	minPntTextField.setText(""+parameters.getMinPointCount());
	maxSamTextField.setText(""+parameters.getBootstrapSampleSize());
	maxMCTextField.setText(""+parameters.getMonteCarloSampleSize());
	maxRepTextField.setText(""+parameters.getMultipleTestReruns());
    }

    public void actionPerformed(ActionEvent actionEvent){
	actionCommand = new String(actionEvent.getActionCommand()); // Action command name
	// Menu actions
	if(actionCommand.equals("load parameters")){
	    System.out.println("Load Parameters File");
	    fileDialog = new FileDialog(new Frame());
	    fileFil = new FileFil(fileDialog,".parameters");
	    fileDialog.setTitle("Load Parameters File");
	    fileDialog.setFilenameFilter(fileFil);
	    fileDialog.setVisible(true);
	    if (fileDialog.getFile()==null) {return;}
	    file = new File(fileDialog.getDirectory(),fileDialog.getFile());
	    
		parameters = new Parameters(file);
		System.out.println(parameters.getAnimate());
		setText();
		parseValues();

	}
	if(actionCommand.equals("save parameters")){
	    System.out.println("Save Parameters File");
	    fileDialog = new FileDialog(new Frame());
	    fileFil = new FileFil(fileDialog,".parameters");
	    fileDialog.setTitle("Save Parameters File");
	    fileDialog.setFilenameFilter(fileFil);
	    fileDialog.setVisible(true);
	    if (fileDialog.getFile()==null) {return;}
	    file = new File(fileDialog.getDirectory(),fileDialog.getFile());
	    try{
		parameters.writeParameters(file);
		//dbase.save(file);
	    }
	    catch(IOException error){
		System.err.println("Error saving file "+error);
		return;
	    }
	}
	if(actionCommand.equals("close")){
	    frame.dispose();
	}
	// Button actions
	if(actionCommand.equals("apply")){
	    parseValues();
	    setText();
	    System.out.println("Parameters\n"+parameters);
	}
	if(actionCommand.equals("default")){
	    parameters.setDefaultParameters();
	    setText();
	    System.out.println("Parameters\n"+parameters);
	}
	if(actionCommand.equals("significance test parameters")){
	    if(alternator==true){
		gridBagConstraints.gridwidth=GridBagConstraints.REMAINDER;
		gridBagLayout.setConstraints(parametersContainer,gridBagConstraints);
		frame.add(parametersContainer);
		frame.pack();
		alternator=false;
	    }
	    else{
		frame.remove(parametersContainer);
		frame.pack();
		alternator=true;
	    }
	}
    }
}