com.viaoa.jfc.editor.html.OAHTMLTextPaneMergeDialog Maven / Gradle / Ivy

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/*  Copyright 1999-2015 Vince Via [email protected]
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
*/
package com.viaoa.jfc.editor.html;

import java.awt.*;
import java.awt.event.*;

import javax.swing.*;
import javax.swing.border.*;

import java.net.URL;
import com.viaoa.jfc.*;

/**
 * Dialog used to edit concurrent changes to HTMLEditor, so that user
 * can select which version to save, or merge.
 * @author vvia
 *
 */
public abstract class OAHTMLTextPaneMergeDialog extends JDialog {

    private OAHTMLTextPane taOrig, taCurrent, taLocal, taNewValue;
    private boolean bCancel;
    private JPanel pan;

    public OAHTMLTextPaneMergeDialog(Window parent, String title) {
        super(parent, title, Dialog.ModalityType.APPLICATION_MODAL); 
        this.setResizable(true);
        this.setDefaultCloseOperation(JDialog.DO_NOTHING_ON_CLOSE);
        
        this.addWindowListener(new WindowAdapter() {
        	public void windowClosing(WindowEvent e) {
        		super.windowClosing(e);
        		onClose();
        	}
        });

        getContentPane().setLayout(new BorderLayout());
        
        getContentPane().add(getPanel(), BorderLayout.CENTER);
        
        JLabel lbl = new JLabel("The text was changed by another user while you were making changes.");
        lbl.setBorder(new CompoundBorder(new EmptyBorder(5,5,5,5), new TitledBorder("")));
        getContentPane().add(lbl, BorderLayout.NORTH);
        
        JPanel p = new JPanel(new FlowLayout(FlowLayout.CENTER, 2,2));
        p.add(getOkButton());
        getContentPane().add(p, BorderLayout.SOUTH);

        
        pack();
        Dimension d = this.getSize();
        this.setSize(d.width, (int)(d.height * 1.45));

        setLocationRelativeTo(parent);
    }    

    protected JPanel getPanel() {
    	if (pan != null) return pan;
    	
        pan = new JPanel(new GridLayout(2,2,5,5));
        pan.setBorder(new EmptyBorder(5,5,5,5));
    	JPanel p;
    	JLabel lbl;
    	OAHTMLTextPane ta;
    	Border b;
        
    	
    	ta = new OAHTMLTextPane();
        b = new CompoundBorder(new TitledBorder("Original Value"), new EmptyBorder(5,5,5,5));
        ta.setToolTipText("value before you began your changes.");
    	taOrig = ta;
    	JScrollPane sp = new JScrollPane(ta);
        sp.setBorder(b);
        pan.add(sp);

        
        ta = new OAHTMLTextPane();
        b = new CompoundBorder(new TitledBorder("Current Value"), new EmptyBorder(5,5,5,5));
        ta.setToolTipText("value after another user has changed it.");
        taCurrent = ta;
        sp = new JScrollPane(ta);
        sp.setBorder(b);
        pan.add(sp);

        
        ta = new OAHTMLTextPane();
        b = new CompoundBorder(new TitledBorder("Your Changes"), new EmptyBorder(5,5,5,5));
        // ta.setToolTipText("your changes.");
        taLocal = ta;
        sp = new JScrollPane(ta);
        sp.setBorder(b);
        pan.add(sp);

        
        ta = new OAHTMLTextPane();
        taNewValue = ta;
        ta.setToolTipText("new value to use.");
        
        p = new JPanel(new GridLayout(1,3,1,0));
        JButton cmd = new JButton("Use original");
        cmd.setToolTipText("use the original text, before anyone made a change");
        OAButton.setup(cmd);
        cmd.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                taNewValue.setText(taOrig.getText());
            }
        });
        p.add(cmd);
        cmd = new JButton("Use current");
        cmd.setToolTipText("use the current text, set while you were editing");
        OAButton.setup(cmd);
        cmd.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                taNewValue.setText(taCurrent.getText());
            }
        });
        p.add(cmd);
        cmd = new JButton("Use your changes");
        cmd.setToolTipText("use your changes to the text");
        OAButton.setup(cmd);
        cmd.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                taNewValue.setText(taLocal.getText());
            }
        });
        p.add(cmd);

        
        JPanel px = new JPanel(new BorderLayout(0,0));
        px.add(new JScrollPane(ta), BorderLayout.CENTER);
        px.add(p, BorderLayout.SOUTH);

        b = new CompoundBorder(new TitledBorder("New value to use"), new EmptyBorder(5,5,5,5));
        px.setBorder(b);
        
        pan.add(px);
        
        
    	return pan;
    }

    public OAHTMLTextPane getOriginalTextArea() {
        return taOrig;
    }
    public OAHTMLTextPane getCurrentTextArea() {
        return taCurrent;
    }
    public OAHTMLTextPane getLocalTextArea() {
        return taLocal;
    }
    public OAHTMLTextPane getNewValueTextArea() {
        return taNewValue;
    }
    

    private JButton cmdOk;
    public JButton getOkButton() {
        if (cmdOk == null) {
            cmdOk = new JButton("Ok");
            cmdOk.setMnemonic(KeyEvent.VK_O);
            cmdOk.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    onOk();
                }
            });
        }
        return cmdOk;
    }

    
    protected abstract void onOk();
    protected abstract void onClose();
    
    
    public static void main(String[] args) {
		OAHTMLTextPaneMergeDialog dlg = new OAHTMLTextPaneMergeDialog(null, "title") {
			@Override
			public void onOk() {
				System.exit(0);
			}
			@Override
			protected void onClose() {
                System.exit(0);
			}
		};
		dlg.setVisible(true);
	}
    
}