/*
 *                 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 1997-2000 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

package org.netbeans.core;

import java.util.Vector;
import java.util.Collections;
import java.util.Comparator;
import java.util.ResourceBundle;

import java.awt.*;
import javax.swing.text.Keymap;
import javax.swing.*;

import org.openide.DialogDescriptor;
import org.openide.util.Lookup;
import org.openide.util.NbBundle;

/** A panel used in SHortcutsEditor for editing shortcuts (list of shortcuts).
*
* @author Ian Formanek
*/
public class ShortcutsPanel extends javax.swing.JPanel {

    private Keymap map;
    private Vector strokes;

    private ShortcutsEditor shortcutsEditor;

    private ActionsPanel addActionsPanel;

    /** Creates new form ActionsPanel */
    public ShortcutsPanel(ShortcutsEditor shortcutsEditor) {
        ResourceBundle bundle;

        this.shortcutsEditor = shortcutsEditor;
        updateData ();

        initComponents ();
        initAccessibility();
        addButton.setMnemonic((bundle = NbBundle.getBundle(ShortcutsPanel.class)).getString("ActionsPanel.shortcutAddButton.text_Mnemonic").charAt(0));
        removeButton.setMnemonic(bundle.getString("ActionsPanel.shortcutRemoveButton.text_Mnemonic").charAt(0));

        buttonsPanel.setBorder (new javax.swing.border.CompoundBorder(
                                     new javax.swing.border.TitledBorder(
                                         new javax.swing.border.EtchedBorder(), bundle.getString ("ActionsPanel.ShortcutsTitle")),
                                     new javax.swing.border.EmptyBorder(new java.awt.Insets(12, 12, 11, 11))));

        shortcutsList.setCellRenderer (new KeyStrokeRenderer ());
        shortcutsList.setSelectedIndices(new int[0]);
        updateButtons ();
    }

    /** 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 FormEditor.
     */
    private void initComponents() {//GEN-BEGIN:initComponents
        java.awt.GridBagConstraints gridBagConstraints;

        shortcutsScrollPane = new javax.swing.JScrollPane();
        shortcutsList = new javax.swing.JList (strokes);
        buttonsPanel = new javax.swing.JPanel();
        shortcutTextArea = new javax.swing.JTextArea();
        addButton = new javax.swing.JButton();
        removeButton = new javax.swing.JButton();

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

        shortcutsList.addListSelectionListener(new javax.swing.event.ListSelectionListener() {
            public void valueChanged(javax.swing.event.ListSelectionEvent evt) {
                shortcutsListValueChanged(evt);
            }
        });

        shortcutsScrollPane.setViewportView(shortcutsList);

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 1.0;
        add(shortcutsScrollPane, gridBagConstraints);

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

        shortcutTextArea.setWrapStyleWord(true);
        shortcutTextArea.setToolTipText(java.util.ResourceBundle.getBundle("org/netbeans/core/Bundle").getString("ACS_ShortcutsPanel.shortcutTextArea.text.a11yName"));
        shortcutTextArea.setLineWrap(true);
        shortcutTextArea.setEditable(false);
        shortcutTextArea.setText(java.util.ResourceBundle.getBundle("org/netbeans/core/Bundle").getString("ShortcutsPanel.shortcutTextArea.text"));
        shortcutTextArea.setBackground(buttonsPanel.getBackground());
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.gridheight = 2;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.weightx = 1.0;
        buttonsPanel.add(shortcutTextArea, gridBagConstraints);

        addButton.setText(java.util.ResourceBundle.getBundle("org/netbeans/core/Bundle").getString("ShortcutsPanel.addButton.text"));
        addButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                addButtonActionPerformed(evt);
            }
        });

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 1;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
        gridBagConstraints.insets = new java.awt.Insets(0, 12, 0, 0);
        buttonsPanel.add(addButton, gridBagConstraints);

        removeButton.setText(java.util.ResourceBundle.getBundle("org/netbeans/core/Bundle").getString("ShortcutsPanel.removeButton.text"));
        removeButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                removeButtonActionPerformed(evt);
            }
        });

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 1;
        gridBagConstraints.gridy = 1;
        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
        gridBagConstraints.insets = new java.awt.Insets(5, 12, 0, 0);
        buttonsPanel.add(removeButton, gridBagConstraints);

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 1;
        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.insets = new java.awt.Insets(12, 0, 0, 0);
        add(buttonsPanel, gridBagConstraints);

    }//GEN-END:initComponents

    private void addButtonActionPerformed (java.awt.event.ActionEvent evt) {//GEN-FIRST:event_addButtonActionPerformed
        if (addActionsPanel == null) {
            addActionsPanel = new ActionsPanel (true, shortcutsEditor);
            addActionsPanel.setBorder(new javax.swing.border.EmptyBorder(12, 12, 0, 11));
        }
        DialogDescriptor dd = new DialogDescriptor (addActionsPanel, org.openide.util.NbBundle.getBundle(ShortcutsPanel.class).getString("ShortcutsPanel.AddActionTitle"));
        java.awt.Dialog d = org.openide.DialogDisplayer.getDefault().createDialog(dd);
        d.setVisible (true);
        if (dd.getValue() == DialogDescriptor.OK_OPTION) {
            updateData ();
            shortcutsList.setListData(strokes);
            shortcutsEditor.setModified (true);
        }
    }//GEN-LAST:event_addButtonActionPerformed

    private void shortcutsListValueChanged (javax.swing.event.ListSelectionEvent evt) {//GEN-FIRST:event_shortcutsListValueChanged
        updateButtons ();
    }//GEN-LAST:event_shortcutsListValueChanged

    private void removeButtonActionPerformed (java.awt.event.ActionEvent evt) {//GEN-FIRST:event_removeButtonActionPerformed
        int[] selectedIndices = shortcutsList.getSelectedIndices();
        Object[] selected = shortcutsList.getSelectedValues();
        for (int i = 0; i < selected.length; i++) {
            map.removeKeyStrokeBinding((KeyStroke)selected[i]);
            strokes.remove (selected[i]);
        }
        if (selectedIndices.length == 1) {
            shortcutsList.setSelectedIndex (selectedIndices[0]);
        } else {
            shortcutsList.setSelectedIndices (new int[0]);
        }
        shortcutsList.revalidate ();
        shortcutsList.repaint ();
        shortcutsEditor.setModified (true);
    }//GEN-LAST:event_removeButtonActionPerformed

    private void updateData () {
        map = (Keymap)Lookup.getDefault ().lookup (Keymap.class);
        KeyStroke[] strokesArray = map.getBoundKeyStrokes();
        strokes = new Vector ();
        for (int i = 0; i < strokesArray.length; i++) {
            strokes.addElement (strokesArray[i]);
        }

        Collections.sort (strokes, new Comparator () {
                              public int compare (Object o1, Object o2) {
                                  int k1 = ((KeyStroke)o1).getKeyCode ();
                                  int k2 = ((KeyStroke)o2).getKeyCode ();
                                  if (k1 < k2) return -1;
                                  else if (k1 > k2) return 1;
                                  else {
                                      int m1 = ((KeyStroke)o1).getModifiers ();
                                      int m2 = ((KeyStroke)o2).getModifiers ();
                                      if (m1 < m2) return -1;
                                      else if (m1 > m2) return 1;
                                      else return 0;
                                  }
                              }
                          }
                         );
    }

    private void updateButtons () {
        removeButton.setEnabled(shortcutsList.getSelectedIndices().length > 0);
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JScrollPane shortcutsScrollPane;
    private javax.swing.JButton addButton;
    private javax.swing.JTextArea shortcutTextArea;
    private javax.swing.JPanel buttonsPanel;
    private javax.swing.JList shortcutsList;
    private javax.swing.JButton removeButton;
    // End of variables declaration//GEN-END:variables

    private void initAccessibility() {
        ResourceBundle bundle = NbBundle.getBundle(ShortcutsPanel.class);
        shortcutsList.getAccessibleContext().setAccessibleName(bundle.getString("ACSN_ShortcutsPanel.shortcutsList"));
        shortcutsList.getAccessibleContext().setAccessibleDescription(bundle.getString("ACSD_ShortcutsPanel.shortcutsList"));
        shortcutTextArea.getAccessibleContext().setAccessibleName(bundle.getString("ACS_ShortcutsPanel.shortcutTextArea.text.a11yName"));
        addButton.getAccessibleContext().setAccessibleDescription(bundle.getString("ACS_ShortcutsPanel.addButton.text.a11yDesc"));
        removeButton.getAccessibleContext().setAccessibleDescription(bundle.getString("ACS_ShortcutsPanel.removeButton.text.a11yDesc"));
    }
    
    /** Sets focus to the default component */
    protected void setFocusDefault () {
        shortcutsList.requestFocus();
    }

    static class KeyStrokeRenderer extends DefaultListCellRenderer {
        public Component getListCellRendererComponent(JList list, Object value,
                int index, boolean isSelected, boolean cellHasFocus) {
            super.getListCellRendererComponent (list, value, index, isSelected, cellHasFocus);
            setText (" " + ShortcutsFolder.getKeyStrokeName ((KeyStroke)value)); // the leading space provides empty border on the left side of the list // NOI18N
            return this;
        }
    }
}