processbox.java

包含了模式识别中常用的一些分类器设计算法

/**
 * file: ProcessBox.java
 *
 * last editted: Ryan Irwin
 */
// import necessary java libraries
//
import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;

//These imports are not needed - Phil T. 6-23-03
//import java.awt.event.*;

/**
 * ProcessBox inplements the text area to the right of the applet that 
 * acts as a process description for the various algorithms being used
 *
 * hierarchy: JPanel->SubPanel->ProcessBox
 *
 */
class ProcessBox extends SubPanel 
{

    // *********************************************************************
    //
    // declare global variables and components
    //
    // *********************************************************************

    // declare components
    //
    JTextArea textArea;             // text area for user information
    JScrollPane scrollPane;         // scroll pane for the text area
    ProgressBar progress;           // progress bar indicator

    String title1;                  // title for process discription

    Font currentFont = getFont();   // fonts for the buttons

    Font newFont = new Font(currentFont.getName(), 
			    currentFont.getStyle(), 12);
    // *********************************************************************
    //
    // declare class constructors
    //
    // *********************************************************************
    
    /** 
     * Constructor initializes the text area and scroll bar objects
     *
     */
    ProcessBox() 
    {

	// initialize the progress bar
	//
	progress = new ProgressBar();
	progress.add_components();

	// initialize the titles of the objects
	//
	title1 = new String("Process Description:");

	// initialize the text area
	//
	textArea = new JTextArea();
	textArea.setEditable(false);

	// make the text area scrollable
	//
	scrollPane = new JScrollPane(textArea);

	// set the border for the panel
	//
	Border titleBorder = BorderFactory.createTitledBorder(
			     BorderFactory.createLineBorder(Color.black), 
			     title1, 
			     TitledBorder.LEFT, 
			     TitledBorder.ABOVE_TOP, 
			     newFont, 
			     Color.black);
	scrollPane.setBorder(titleBorder);
    }

    // *********************************************************************
    //
    // declare class methods
    //
    // *********************************************************************

    /**    
     * Adds components to the input panel
     *
     */
    public void add_components() 
    {
	
	constrain(this, 
		  scrollPane, 
		  0, 
		  0, 
		  GridBagConstraints.REMAINDER, 
		  1, 
		  GridBagConstraints.BOTH,
		  GridBagConstraints.NORTHWEST, 
		  1, 
		  1, 
		  0, 
		  0, 
		  0, 
		  0);
	constrain(this, 
		  progress, 
		  0, 
		  1, 
		  GridBagConstraints.REMAINDER, 
		  1, 
		  GridBagConstraints.BOTH,
		  GridBagConstraints.NORTHWEST, 
		  1, 
		  0.01, 
		  0, 
		  0, 
		  0, 
		  0);
    }

    /**
     * Appends a message to the text area
     *
     * @param text_a String message to be appended
     */
    public void appendMessage(String text_a) 
    {
	
	textArea.append(text_a + "\n");
    }

    /**
     * Appends messages to the text area
     *
     * @param text_a String messages to be appended
     */
    public void appendMessages(String text_a) 
    {
	textArea.append(text_a);
    }

    /**
     * method: appendMessage
     *
     * @param   none
     * @return  none
     *
     * appendMessage to the text area
     *
     */
    // public void appendMessages1(String text_a) {
    //	textArea.append(text_a);
    // }

    
    /**
     * Clears all messages
     *
     */  
    public void clearMessage() 
    {
	
	// clear all message
	//
	textArea.setText("");
    }
    
    /**
     * Sets the progress minimum value
     *
     * @param   min_a Sets progressBar to this minimum value
     */
    public void setProgressMin(int min_a) 
    {
	
	// clear all message
	//
	progress.progressBar.setMinimum(min_a);
    }
    
    /** 
     * Sets the progress maximum value
     *
     * @param   max_a Sets progress to this maximum value
     */
    public void setProgressMax(int max_a) 
    {
	
	// clear all message
	//
	progress.progressBar.setMaximum(max_a);
    }

    /**
     * Sets the progress current value
     *
     * @param   curr_a Sets the progress to this current value
     */
    public void setProgressCurr(int curr_a) 
    {
	
	// clear all message
	//
	progress.progressBar.setValue(curr_a);
	progress.repaint();
    }
}