/*
 *                 Sun Public License Notice
 * 
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 * 
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2003 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

package org.netbeans.core.ui;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import javax.swing.*;
import java.beans.*;

import org.openide.ErrorManager;
import org.openide.WizardDescriptor;
import org.openide.util.NbBundle;
import org.netbeans.core.IDESettings;
import org.openide.util.AsyncGUIJob;
import org.openide.util.Utilities;
import org.openide.windows.WindowManager;
//import org.netbeans.core.windows.WindowManagerImpl; // TEMP

/** Setup wizard panel UI component that represents general IDE settings,
 * such as www browser, proxy or window system mode. 
 * Plays role of UI for IDESettingsWizardPanel.
 *
 * @author  jrojcek
 */
class IDESettingsPanel extends javax.swing.JPanel
                       implements PropertyChangeListener {

    /** See org.openide.WizardDescriptor.PROP_CONTENT_SELECTED_INDEX
     */
    private static final String PROP_CONTENT_SELECTED_INDEX =  "WizardPanel_contentSelectedIndex"; // NOI18N
    /** See org.openide.WizardDescriptor.PROP_CONTENT_DATA
     */
    private static final String PROP_CONTENT_DATA = "WizardPanel_contentData"; // NOI18N

    private java.util.ResourceBundle bundle = NbBundle.getBundle(IDESettingsPanel.class);
    
    /** Initialization data structure for passing data between background
     * initialization and UI update */
    private static final class InitData {
        PropertyEditor editor;
        ComboBoxModel comboModel;
        Icon sdiIcon, mdiIcon;
    }; // end of InitData
    
    /** holds init data for async initialization */
    private InitData initData;
    
    /** Creates new form IDESettingsPanel */
    public IDESettingsPanel() {
        //XXX if we could kill the 
        initComponents();

        serverLabel.setDisplayedMnemonic(bundle.getString("LBL_Server_Name_Mnemonic").charAt(0));
        portLabel.setDisplayedMnemonic(bundle.getString("LBL__Port_Mnemonic").charAt(0));
        
        // inserting space character before radiobuttons and checkboxes
        String string = bundle.getString("LBL_UseProxyServer");
        proxyCheckBox.setText(new StringBuffer(string.length() + 1).append(' ').append(string).toString());
        string = bundle.getString("LBL_SDI");
        sdiRadioButton.setText(new StringBuffer(string.length() + 1).append(' ').append(string).toString());
        string = bundle.getString("LBL_MDI");
        mdiRadioButton.setText(new StringBuffer(string.length() + 1).append(' ').append(string).toString());
        
        proxyCheckBox.setMnemonic(bundle.getString("LBL_UseProxyServer_Mnemonic").charAt(0));
        sdiRadioButton.setMnemonic(bundle.getString("LBL_SDI_Mnemonic").charAt(0));
        mdiRadioButton.setMnemonic(bundle.getString("LBL_MDI_Mnemonic").charAt(0));

        javax.swing.ButtonGroup bg = new javax.swing.ButtonGroup();
        bg.add(mdiRadioButton);
        bg.add(sdiRadioButton);

        putClientProperty(PROP_CONTENT_SELECTED_INDEX, new Integer(0));
        putClientProperty(PROP_CONTENT_DATA, new String[] {getName()});
        
        initAccessibility();
        // asycnhronous initialization
        Utilities.attachInitJob(this, new AsyncGUIJobImpl ());
    }
    
    //A couple static methods to fix NPEs on GTK
    
    private static Font fetchFont(String key) {
        Font f = UIManager.getFont (key);
        if (f == null) {
            f = UIManager.getFont("controlFont"); //NOI18N
            if (f == null) {
                f = new Font ("Dialog", Font.PLAIN, 11); //NOI18N
            }
        }
        return f;
    }
    
    private static Color fetchColor (String key, Color fallback) {
        Color result = UIManager.getColor(key);
        if (result == null) {
            result = fallback;
        }
        return result;
    }    
    
    private Dimension prefSize = null;
    public Dimension getPreferredSize() {
        //Performance - avoid the repaint penalty by having the second pane
        //force the dialog to resize - it will eliminate three repaints
        if (prefSize == null) {
            prefSize = new Dimension(super.getPreferredSize());
            prefSize.width += 100;
            prefSize.height +=50;
        }
        return prefSize;
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    private void initComponents() {//GEN-BEGIN:initComponents
        java.awt.GridBagConstraints gridBagConstraints;

        proxyCheckBox = new javax.swing.JCheckBox();
        serverField = new javax.swing.JTextField();
        portField = new javax.swing.JTextField();
        sdiRadioButton = new javax.swing.JRadioButton();
        mdiRadioButton = new javax.swing.JRadioButton();
        serverLabel = new javax.swing.JLabel();
        portLabel = new javax.swing.JLabel();
        windowLabel = new javax.swing.JLabel();
        browserLabel = new javax.swing.JLabel();
        browserComboBox = new javax.swing.JComboBox();
        helpTextArea = new javax.swing.JTextArea();
        sdiIcon = new javax.swing.JLabel();
        mdiIcon = new javax.swing.JLabel();
        jTextArea1 = new javax.swing.JTextArea();
        proxyLabel = new javax.swing.JLabel();
        jTextArea2 = new javax.swing.JTextArea();

        setLayout(new java.awt.GridBagLayout());

        setName(bundle.getString("LBL_IDEPanelName"));
        proxyCheckBox.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                changeProxyEnabled(evt);
            }
        });

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 7;
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 12, 0, 0);
        add(proxyCheckBox, gridBagConstraints);

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 2;
        gridBagConstraints.gridy = 8;
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 0, 5, 60);
        add(serverField, gridBagConstraints);

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 2;
        gridBagConstraints.gridy = 9;
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 0, 5, 160);
        add(portField, gridBagConstraints);

        sdiRadioButton.setMargin(new java.awt.Insets(0, 2, 0, 2));
        sdiRadioButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                changeWindowMode(evt);
            }
        });

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 3;
        gridBagConstraints.gridy = 2;
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 72, 6, 0);
        add(sdiRadioButton, gridBagConstraints);

        mdiRadioButton.setMargin(new java.awt.Insets(0, 2, 0, 2));
        mdiRadioButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                changeWindowMode(evt);
            }
        });

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 2;
        gridBagConstraints.gridwidth = 3;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 12, 6, 0);
        add(mdiRadioButton, gridBagConstraints);

        serverLabel.setLabelFor(serverField);
        serverLabel.setText(bundle.getString("LBL_Server_Name"));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 8;
        gridBagConstraints.gridwidth = 2;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 24, 5, 12);
        add(serverLabel, gridBagConstraints);

        portLabel.setLabelFor(portField);
        portLabel.setText(bundle.getString("LBL_Port"));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 9;
        gridBagConstraints.gridwidth = 2;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 24, 5, 12);
        add(portLabel, gridBagConstraints);

        windowLabel.setLabelFor(sdiRadioButton);
        windowLabel.setText(bundle.getString("LBL_WindowMode"));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 1;
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        add(windowLabel, gridBagConstraints);

        browserLabel.setLabelFor(browserComboBox);
        browserLabel.setText(org.openide.util.NbBundle.getMessage(IDESettingsPanel.class, "CTL_BrowserLabel"));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 4;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 0, 5, 12);
        add(browserLabel, gridBagConstraints);

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 1;
        gridBagConstraints.gridy = 4;
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 0, 5, 160);
        add(browserComboBox, gridBagConstraints);

        helpTextArea.setBackground(fetchColor("Panel.background", getBackground()));
        helpTextArea.setColumns(53);
        helpTextArea.setEditable(false);
        helpTextArea.setFont(fetchFont("Label.font"));
        helpTextArea.setLineWrap(true);
        helpTextArea.setRows(4);
        helpTextArea.setText(org.openide.util.NbBundle.getMessage(IDESettingsPanel.class, "CTL_HelpTextArea"));
        helpTextArea.setWrapStyleWord(true);
        helpTextArea.setDisabledTextColor(fetchColor("textText", Color.BLACK));
        helpTextArea.setEnabled(false);
        helpTextArea.setOpaque(false);
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 5;
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.insets = new java.awt.Insets(0, 12, 24, 0);
        add(helpTextArea, gridBagConstraints);

        sdiIcon.setMinimumSize(new java.awt.Dimension(99, 77));
        sdiIcon.setPreferredSize(new java.awt.Dimension(99, 77));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 3;
        gridBagConstraints.gridy = 3;
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 96, 24, 0);
        add(sdiIcon, gridBagConstraints);

        mdiIcon.setMinimumSize(new java.awt.Dimension(99, 77));
        mdiIcon.setPreferredSize(new java.awt.Dimension(99, 77));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 3;
        gridBagConstraints.gridwidth = 3;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 36, 24, 0);
        add(mdiIcon, gridBagConstraints);

        jTextArea1.setBackground(fetchColor("Panel.background", getBackground()));
        jTextArea1.setColumns(30);
        jTextArea1.setEditable(false);
        jTextArea1.setFont(fetchFont ("Label.font"));
        jTextArea1.setLineWrap(true);
        jTextArea1.setRows(1);
        jTextArea1.setText(org.openide.util.NbBundle.getMessage(IDESettingsPanel.class, "LBL_Head"));
        jTextArea1.setWrapStyleWord(true);
        jTextArea1.setDisabledTextColor(fetchColor("textText", Color.BLACK));
        jTextArea1.setEnabled(false);
        jTextArea1.setOpaque(false);
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
        gridBagConstraints.insets = new java.awt.Insets(0, 0, 12, 0);
        add(jTextArea1, gridBagConstraints);

        proxyLabel.setLabelFor(sdiRadioButton);
        proxyLabel.setText(bundle.getString("LBL_WebProxy"));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 6;
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        add(proxyLabel, gridBagConstraints);

        jTextArea2.setBackground(fetchColor("Panel.background", getBackground()));
        jTextArea2.setColumns(53);
        jTextArea2.setEditable(false);
        jTextArea2.setFont(fetchFont("Label.font"));
        jTextArea2.setLineWrap(true);
        jTextArea2.setRows(3);
        jTextArea2.setText(org.openide.util.NbBundle.getMessage(IDESettingsPanel.class, "LBL_ProxyDesc"));
        jTextArea2.setWrapStyleWord(true);
        jTextArea2.setDisabledTextColor(fetchColor("textText", Color.BLACK));
        jTextArea2.setEnabled(false);
        jTextArea2.setOpaque(false);
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 10;
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.gridheight = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 2.0;
        gridBagConstraints.insets = new java.awt.Insets(0, 12, 12, 0);
        add(jTextArea2, gridBagConstraints);

    }//GEN-END:initComponents

    private void changeProxyEnabled(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_changeProxyEnabled
        setProxySettingEnabled(proxyCheckBox.isSelected());
    }//GEN-LAST:event_changeProxyEnabled

    private void setProxySettingEnabled(boolean b) {
        serverLabel.setEnabled(b);
        portLabel.setEnabled(b);
        serverField.setEnabled(b);
        portField.setEnabled(b);

        if (b) {
            // automatically transfer the focus to the proxy hostname field
            // whenever "use proxy" is checked
            serverField.requestFocus();
        }
    }
    
    private void changeWindowMode(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_changeWindowMode
        if (evt.getSource() == mdiRadioButton) {
            uiMode = 2; // mdi
        } else {
            uiMode = 1; // sdi
        }
    }//GEN-LAST:event_changeWindowMode


    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JComboBox browserComboBox;
    private javax.swing.JLabel browserLabel;
    private javax.swing.JTextArea helpTextArea;
    private javax.swing.JTextArea jTextArea1;
    private javax.swing.JTextArea jTextArea2;
    private javax.swing.JLabel mdiIcon;
    private javax.swing.JRadioButton mdiRadioButton;
    private javax.swing.JTextField portField;
    private javax.swing.JLabel portLabel;
    private javax.swing.JCheckBox proxyCheckBox;
    private javax.swing.JLabel proxyLabel;
    private javax.swing.JLabel sdiIcon;
    private javax.swing.JRadioButton sdiRadioButton;
    private javax.swing.JTextField serverField;
    private javax.swing.JLabel serverLabel;
    private javax.swing.JLabel windowLabel;
    // End of variables declaration//GEN-END:variables

    private int uiMode;

    /** property editor for web browser customization */
    private PropertyEditor editor;

    /** Initializes component from values stored in given descriptor.
     * Should be called only once, in AWT thread.
     * Called from aggregator IDESettingsWizardPanel
     */
    public void initFromSettings(WizardDescriptor wd) {
        wd.addPropertyChangeListener(this);
        if (Boolean.TRUE.equals(wd.getProperty("initializePanel"))) {
            initializePanel();
        }
    }
    
    /** Initialize panel from NB setting
     */
    private void initializePanel() {
        // asycnhronous refresh
        Utilities.attachInitJob(this, new AsyncGUIJobImpl ());        
        IDESettings settings = (IDESettings)IDESettings.findObject (IDESettings.class, true);
        uiMode = settings.getUIMode();
        sdiRadioButton.setSelected(uiMode == 1); // SDI
        mdiRadioButton.setSelected(uiMode == 2); // MDI

        // web browser, proxy init...
        browserLabel.setDisplayedMnemonic (bundle.getString ("CTL_BrowserLabel_mnemonic").charAt (0));
        try {
            proxyCheckBox.setSelected(settings.getUseProxy());
            serverField.setText(settings.getProxyHost());
            portField.setText(settings.getProxyPort());
            setProxySettingEnabled(settings.getUseProxy());
            // install post init code
            putClientProperty("PostInit", this);
        } catch (RuntimeException ex) {
            ErrorManager.getDefault ().notify (ex);
        }
    }

    /** Handling of property changes in node structure and setup wizard descriptor
     */
    public void propertyChange(PropertyChangeEvent evt) {
        if ((evt.getSource() instanceof WizardDescriptor) 
            && (WizardDescriptor.PROP_VALUE.equals(evt.getPropertyName()))) {
                
            WizardDescriptor wd = (WizardDescriptor)evt.getSource();
            if (wd.getValue() == wd.FINISH_OPTION) {
                wd.removePropertyChangeListener(this);
                // set proxy
                IDESettings settings = (IDESettings)IDESettings.findObject(IDESettings.class, true);
                settings.setProxyHost(serverField.getText());
                settings.setProxyPort(portField.getText());
                settings.setUseProxy(proxyCheckBox.isSelected());
                // set ui mode
                settings.setUIMode(uiMode);
                // set web browser
                if (editor != null) {
                    try {
                        Object o = browserComboBox.getSelectedItem ();
                        if (o instanceof String && (o != null)) {
                            editor.setAsText ((String)o);
                            settings.setWWWBrowser ((org.openide.awt.HtmlBrowser.Factory)editor.getValue ());
                        }
                    }
                    catch (RuntimeException ex) {
                        ErrorManager.getDefault ().notify (ex);
                    }
                }
            }
        }
    }
    
 
    /** Initilizes accessible contexts
    */
    private void initAccessibility(){
        this.getAccessibleContext().setAccessibleDescription(bundle.getString("ACSD_IDESettingsPanel")); //NOI18N
        browserComboBox.getAccessibleContext().setAccessibleDescription(helpTextArea.getText());
        proxyCheckBox.getAccessibleContext().setAccessibleDescription(bundle.getString("ACSD_proxyCheckBox")); //NOI18N
        sdiRadioButton.getAccessibleContext().setAccessibleDescription(bundle.getString("ACSD_sdiRadioButton")); //NOI18N
        mdiRadioButton.getAccessibleContext().setAccessibleDescription(bundle.getString("ACSD_mdiRadioButton")); //NOI18N
        serverField.getAccessibleContext().setAccessibleDescription(bundle.getString("ACSD_serverField"));
        portField.getAccessibleContext().setAccessibleDescription(bundle.getString("ACSD_portField"));
    }
    
    private class AsyncGUIJobImpl implements AsyncGUIJob {
        PropertyEditor initEditor;
        ComboBoxModel initComboModel;
        Icon initSdiIcon, initMdiIcon;
            
        /** Loads images and prepares list of available browsers to fill combo box.
         * Executed in non event dispatch thread.
         */
        public void construct () {
            initEditor = PropertyEditorManager.findEditor (org.openide.awt.HtmlBrowser.Factory.class);
            initEditor.setValue (((IDESettings)IDESettings.findObject (IDESettings.class, true)).getWWWBrowser ());
            initComboModel = new DefaultComboBoxModel(initEditor.getTags());                
            initSdiIcon = new ImageIcon(Utilities.loadImage("org/netbeans/core/resources/sdi.gif"));
            initMdiIcon = new ImageIcon(Utilities.loadImage("org/netbeans/core/resources/mdi.gif"));        
        }
    
        /** Show SDI, MDI images, fill combo box. Executed in event dispatch thread.
         */    
        public void finished () {
            editor = initEditor;
            sdiIcon.setIcon(initSdiIcon);
            mdiIcon.setIcon(initMdiIcon);
            browserComboBox.setModel(initComboModel);
            browserComboBox.setSelectedItem(initEditor.getAsText());        
        }
    }
}