source: trunk/gli/src/org/greenstone/gatherer/cdm/MacrosManager.java@ 12123

/**
 *#########################################################################
 *
 * A component of the Gatherer application, part of the Greenstone digital
 * library suite from the New Zealand Digital Library Project at the
 * University of Waikato, New Zealand.
 *
 * Author: Katherine Don, Greenstone Digital Library, University of Waikato
 *
 * Copyright (C) 2006 New Zealand Digital Library Project
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *########################################################################
 */
package org.greenstone.gatherer.cdm;

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

import org.greenstone.gatherer.collection.CollectionManager;
import org.greenstone.gatherer.Configuration;
import org.greenstone.gatherer.Dictionary;
import org.greenstone.gatherer.gui.DesignPaneHeader;
import org.greenstone.gatherer.gui.GLIButton;

public class MacrosManager
    extends JPanel {

    /** The controls used to modify the general options. */
    private Control controls;
    /** Constructor. */
    public MacrosManager() {
    }


    /** Destructor. */
    public void destroy() {
    if (controls != null) {
        controls.destroy();
        controls = null;
    }
    }

    public void loseFocus() {
    }

    public void gainFocus() {

    }
    /** This class is resposible for generating the controls for the editing of general options.
     * @return the Control for editing the general options
     */
    public Control getControls() {
    if (controls == null) {
        controls = new MacrosControl();
    }
    return controls;
    }
    

    /** Called when the detail mode has changed which in turn may cause several design elements to be available/hidden
     * @param mode the new mode as an int
     */
    public void modeChanged(int mode) {

    }


    private class MacrosControl
    extends JPanel
    implements Control {

    JTextArea macros_textarea = null;
    JButton save_button = null;
    JButton revert_button = null;
    
    public MacrosControl() {
        super();

        JPanel header_pane = new DesignPaneHeader("CDM.GUI.Macros", "collectionspecificmacros");
        
        JPanel main_pane = new JPanel();
        main_pane.setLayout(new BorderLayout());
        macros_textarea = new JTextArea();
        macros_textarea.setBackground(Configuration.getColor("coloring.editable_background", false));
        macros_textarea.setCaretPosition(0);
        macros_textarea.setLineWrap(false);
        macros_textarea.setWrapStyleWord(false);
        macros_textarea.setToolTipText(Dictionary.get("CDM.MacrosManager.Editor_Tooltip"));

        JPanel macros_pane = new JPanel();
        macros_pane.setBorder(BorderFactory.createEmptyBorder(5,0,5,0));
        macros_pane.setLayout(new BorderLayout());
        macros_pane.add(new JScrollPane(macros_textarea), BorderLayout.CENTER);
        
        save_button = new GLIButton(Dictionary.get("CDM.MacrosManager.Save"), Dictionary.get("CDM.MacrosManager.Save_Tooltip"));
        revert_button = new GLIButton(Dictionary.get("CDM.MacrosManager.Revert"), Dictionary.get("CDM.MacrosManager.Revert_Tooltip"));

        save_button.addActionListener(new SaveListener());
        revert_button.addActionListener(new RevertListener());
        JPanel button_pane = new JPanel();
        button_pane.setLayout(new GridLayout(1,2));
        button_pane.add(save_button);
        button_pane.add(revert_button);

        main_pane.add(macros_pane, BorderLayout.CENTER);
        main_pane.add(button_pane, BorderLayout.SOUTH);

        setBorder(BorderFactory.createEmptyBorder(0,5,0,0));
        setLayout(new BorderLayout());
        add(header_pane, BorderLayout.NORTH);
        add(main_pane, BorderLayout.CENTER);
    }

    public void destroy() {
    }

    public void loseFocus() {
    }

    public void gainFocus() {
        readMacroFile();
    }

    private void readMacroFile() {
        macros_textarea.setText("");
        File extra_dm = new File(CollectionManager.getCollectionDirectoryPath()+"macros"+File.separator+"extra.dm");
        
        if (extra_dm.exists()) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(extra_dm), "UTF-8"));
        
            String line;
            while ((line = br.readLine()) != null) {
            macros_textarea.append(line+"\n");
            }
        } catch (Exception e) {
            System.err.println("Exception happened, "+e.getMessage());
        }
        }
    }
    
    private void writeMacroFile() {
        File extra_dm = new File(CollectionManager.getCollectionDirectoryPath()+"macros"+File.separator+"extra.dm");
        try {
        if (!extra_dm.exists()) {
            File parent_dir = extra_dm.getParentFile();
            parent_dir.mkdirs();
            extra_dm.createNewFile();
        }
        
        BufferedWriter out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(extra_dm), "UTF-8"));
        String text = macros_textarea.getText();
        out.write(text, 0, text.length());
        out.newLine();
        out.flush();
        out.close();
        } catch (Exception e) {
        
        }
    }
    private class SaveListener
        implements ActionListener {

        public void actionPerformed(ActionEvent event) {
        writeMacroFile();
        }
    }
    
    private class RevertListener
        implements ActionListener {

        public void actionPerformed(ActionEvent event) {
        readMacroFile();
        }
    }
    }
    
}