inputboxdialog.java

用Java开发的、实现类似Visio功能的应用程序源码

/**
 *    $Id:InputBoxDialog.java $
 *
 *    Copyright 2004 ~ 2005  JingFei International Cooperation LTD. All rights reserved. *
 */
package com.jfimagine.jfdraw.gui.dialog;
 

import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Container;

import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.BorderFactory;

import javax.swing.JPanel;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JTextField;


import com.jfimagine.jfdraw.gui.resource.CADResource;
import com.jfimagine.utils.commonutil.CommonUtil;
import com.jfimagine.jfdraw.gui.GUIConst;


 /**
 * InputBoxDialog class.  A class used to get a new text or number input.
 *
 * @author     CookieMaker    
 *
 * @version $Revision: 1.00 $
 */  
public class InputBoxDialog extends JDialog
                        implements ActionListener {

    private static InputBoxDialog m_dialog;
    private static String m_value="";
    private static JTextField m_inputTextField;
    private static boolean m_textChanged=false;


    /**
     *  After a valid calling of inputText method, just call this method
     *  to get a string input.
     */
    public static String getString(){
    	return m_value;
    }	

    /**
     *  After a valid calling of inputText method, just call this method
     *  to get a integer input.
     */
    public static int getIntValue(){
    	return CommonUtil.s2i(m_value);
    }	

    /**
     *  After a valid calling of inputText method, just call this method
     *  to get a double input.
     */
    public static double getDoubleValue(){
    	return CommonUtil.s2f(m_value);
    }	
    

    /**
     * Open a window, to input/modify a new text
     *
     * @param modalFrame  Determines which frame the dialog depends on; it should be
     * a component in the dialog's controlling frame. 
     *
     * @param initialValue initial value for modify
     * @return A new zoom scale.
     */
    public static boolean inputText(Frame modalFrame,String initialValue) {
    	return inputText(modalFrame,null,initialValue);
    }    

    /**
     * Open a window, to input/modify a new text
     *
     * @param modalFrame  Determines which frame the dialog depends on; it should be
     * a component in the dialog's controlling frame. 
     *
     * @param initialValue initial value for modify
     * @return A new zoom scale.
     */
    public static boolean inputText(Frame modalFrame,String initialValue,String title,String iLabel) {
    	return showDialog(modalFrame,null,initialValue,title,iLabel);
    }    

    /**
     * Open a window, to input/modify a new text
     *
     * @param modalFrame  Determines which frame the dialog depends on; it should be
     * a component in the dialog's controlling frame. 
     *
     * @param refComp  This should be null if you want the dialog
     * to come up with its left corner in the center of the screen;
     * otherwise, it should be the component on top of which the
     * dialog should appear.
     *
     * @param initialValue initial value for modify
     * @return Valid string if user enter/modified text, empty string if user canceled.
     */
    public static boolean inputText(Frame modalFrame,Component refComp,String initialValue) {
    	return showDialog(modalFrame,refComp,initialValue,CADResource.getString("label.text.inputtext"),CADResource.getString("label.text.entertexthere"));
    }    


    /**
     * Set up and show the dialog.  The first Component argument
     * determines which frame the dialog depends on; it should be
     * a component in the dialog's controlling frame. The second
     * Component argument should be null if you want the dialog
     * to come up with its left corner in the center of the screen;
     * otherwise, it should be the component on top of which the
     * dialog should appear.
     */
    private static boolean showDialog(Component frameComp,
                                    Component locationComp,
                                    String initialValue,
                                    String title,
                                    String iLabel
                                    ) {
        Frame frame = JOptionPane.getFrameForComponent(frameComp);
        m_dialog = new InputBoxDialog(frame,
                                locationComp,
                                initialValue,
                                title,
                                iLabel);
        m_dialog.setVisible(true);
        return m_textChanged;
    }


    private InputBoxDialog(Frame frame,
                       Component locationComp,
                       String initialValue,
                       String title,
                       String iLabel) {
        super(frame, title, true);
	setResizable(false);

        //Create and initialize the buttons.
        JButton cancelButton = new JButton(CADResource.getString("button.cancel"));
        cancelButton.setFont(GUIConst.FONT_BUTTON);
        cancelButton.addActionListener(this);
        //
        final JButton confirmButton = new JButton(CADResource.getString("button.confirm"));
        confirmButton.setFont(GUIConst.FONT_BUTTON);
        confirmButton.setActionCommand("Confirm");
        confirmButton.addActionListener(this);
        getRootPane().setDefaultButton(confirmButton);

	
	m_value	=initialValue;
	
	JLabel	textLabel	=new JLabel(iLabel);
	textLabel.setFont(GUIConst.FONT_LABEL);
	textLabel.setPreferredSize(new Dimension(100,25));

    	m_inputTextField		=new JTextField();
        m_inputTextField.setFont(GUIConst.FONT_LABEL);
    	m_inputTextField.setText(initialValue);
        m_inputTextField.setPreferredSize(new Dimension(50, 25));
        
	
	//a top panel for placing zoom label, zoom list and zoom percent label.
        JPanel textPanel = new JPanel();
        textPanel.setLayout(new BoxLayout(textPanel, BoxLayout.Y_AXIS));
        textPanel.add(textLabel);
        textPanel.add(Box.createRigidArea(new Dimension(0,10)));
        textPanel.add(m_inputTextField);
        textPanel.setBorder(BorderFactory.createEmptyBorder(10,20,10,20));

        //Lay out the buttons from left to right.
        JPanel buttonPane = new JPanel();
        buttonPane.setLayout(new BoxLayout(buttonPane, BoxLayout.X_AXIS));
        buttonPane.setBorder(BorderFactory.createEmptyBorder(10, 20, 10, 20));
        buttonPane.add(Box.createRigidArea(new Dimension(20, 0)));
        buttonPane.add(confirmButton);
        buttonPane.add(Box.createRigidArea(new Dimension(10, 0)));
        buttonPane.add(cancelButton);

        //Put everything together, using the content pane's BorderLayout.
        Container contentPane = getContentPane();
        contentPane.add(textPanel, BorderLayout.CENTER);
        contentPane.add(buttonPane, BorderLayout.SOUTH);

        pack();
        setLocationRelativeTo(locationComp);
    }

    //Handle clicks on the Set and Cancel buttons.
    public void actionPerformed(ActionEvent e) {
        if ("Confirm".equals(e.getActionCommand())) {
        	m_value	=m_inputTextField.getText();
        	if (m_value==null || m_value.equals("")){
			JOptionPane.showMessageDialog(null, CADResource.getString("group.invalidShape"), CADResource.getString("dialog.text.emptyText.refused"), JOptionPane.ERROR_MESSAGE);         	
			return;
		}
		m_textChanged	=true;
        }else{
        	m_textChanged	=false;
        }

        m_dialog.setVisible(false);
    }
    
}