package de.glossmaker.gui.gloss.bars;

 import java.awt.Dimension;

 import java.beans.PropertyChangeEvent;

 import java.beans.PropertyChangeListener;

 import javax.swing.ImageIcon;

 import javax.swing.JButton;

 import javax.swing.JToggleButton;

 import javax.swing.JToolBar;

 import de.glossmaker.gloss.datastructure.GlossItems;

 import de.glossmaker.gloss.language.Translation;

 import de.glossmaker.gloss.listener.CustomActionListener;

 import de.glossmaker.gloss.listener.EActionCommands;

 import de.glossmaker.gloss.observer.GlossItemsChangePublisher;

 import de.glossmaker.gloss.undo.UndoGlossStack;

 import de.glossmaker.gui.gloss.help.HelpSystem;

 import de.glossmaker.gui.gloss.main.HelpFocusListener;

 /**

  * 

  * 

  * @author Markus Flingelli

  */

 public class ToolBar extends JToolBar implements PropertyChangeListener {

         private static final long serialVersionUID = -4833900226482512781L;

         private CustomActionListener mActionListener = null;

         private JButton mNewButton = null;

         private JButton mOpenButton = null;

         private JButton mSaveButton = null;

         private JToggleButton mTableButton = null;

         private JButton mBibTeXButton = null;

         private JButton mHelpButton = null;

         private JButton mInfoButton = null;

         private JButton mUndo = null;

         private JButton mRedo = null;

         private GlossItemsChangePublisher mGlossItemsChangePublisher = null;

         private Translation mTranslation = null;

         public ToolBar(GlossItems items) {

                 mActionListener = CustomActionListener.getInstance(items);

                 mGlossItemsChangePublisher = GlossItemsChangePublisher.getInstance(items);

                 mGlossItemsChangePublisher.addPropertyChangeListener(this);

                 mTranslation = Translation.getInstance();

                 initialize();

         }

         private void initialize() {

                 this.setPreferredSize(new Dimension(30, 30));

                 this.add(getNewButton());

                 this.add(getOpenButton());

                 this.add(getSaveButton());

                 this.addSeparator();

                 this.add(getUndoButton());

                 this.add(getRedoButton());

                 this.addSeparator();

                 this.add(getTableButton());

                 this.addSeparator();

                 this.add(getBibTeXButton());

                 this.addSeparator();

                 this.add(getHelpButton());

                 this.addSeparator();

                 this.add(getInfoButton());

                 changeLanguage();

         }

         private JButton getNewButton() {

                 if (mNewButton == null) {

                         mNewButton = new JButton(new ImageIcon(ToolBar.class.getResource("/icons/new.png")));

                         mNewButton.addActionListener(mActionListener);

                         mNewButton.setActionCommand(EActionCommands.CREATE_NEW_FILE.toString());

                         mNewButton.addFocusListener(new HelpFocusListener("section.new.file"));

                 }

                 return mNewButton;

         }

         private JButton getOpenButton() {

                 if (mOpenButton == null) {

                         mOpenButton = new JButton(new ImageIcon(ToolBar.class.getResource("/icons/open.png")));

                         mOpenButton.addActionListener(mActionListener);

                         mOpenButton.setActionCommand(EActionCommands.OPEN_FILE.toString());                        

                         mOpenButton.addFocusListener(new HelpFocusListener("section.open.file"));

                 }

                 return mOpenButton;

         }

         private JButton getBibTeXButton() {

                 if (mBibTeXButton == null) {

                         mBibTeXButton = new JButton(new ImageIcon(ToolBar.class.getResource("/icons/bibtex.png")));

                         mBibTeXButton.addActionListener(mActionListener);

                         mBibTeXButton.setActionCommand(EActionCommands.SHOW_BIB_EDITOR.toString());

                         mBibTeXButton.addFocusListener(new HelpFocusListener("section.bibtex_editor"));

                 }

                 return mBibTeXButton;

         }

         private JButton getSaveButton() {

                 if (mSaveButton == null) {

                         mSaveButton = new JButton(new ImageIcon(ToolBar.class.getResource("/icons/save.png")));

                         mSaveButton.addActionListener(mActionListener);

                         mSaveButton.setActionCommand(EActionCommands.SAVE_FILE.toString());                        

                         mSaveButton.setEnabled(false);

                         mSaveButton.addFocusListener(new HelpFocusListener("section.save.file"));

                 }

                 return mSaveButton;

         }

         private JButton getUndoButton() {

                 if (mUndo == null) {

                         mUndo = new JButton(new ImageIcon(ToolBar.class.getResource("/icons/undo.png")));

                         mUndo.addActionListener(mActionListener);

                         mUndo.setActionCommand(EActionCommands.UNDO.toString());                        

                         mUndo.setEnabled(false);

                         mUndo.addFocusListener(new HelpFocusListener("section.undo"));

                 }

                 return mUndo;

         }

         private JButton getRedoButton() {

                 if (mRedo == null) {

                         mRedo = new JButton(new ImageIcon(ToolBar.class.getResource("/icons/redo.png")));

                         mRedo.addActionListener(mActionListener);

                         mRedo.setActionCommand(EActionCommands.REDO.toString());                        

                         mRedo.setEnabled(false);

                         mRedo.addFocusListener(new HelpFocusListener("section.redo"));

                 }

                 return mRedo;

         }

         private JButton getHelpButton() {

                 if (mHelpButton == null) {

                         mHelpButton = new JButton(new ImageIcon(ToolBar.class.getResource("/icons/help.png")));

                         mHelpButton.addActionListener(mActionListener);                        

                         HelpSystem.getInstance().enableHelpOnButton(mHelpButton, "chapter.introduction", null);

                         mHelpButton.addFocusListener(new HelpFocusListener("section.help_dialog"));

                 }

                 return mHelpButton;

         }

         private JButton getInfoButton() {

                 if (mInfoButton == null) {

                         mInfoButton = new JButton(new ImageIcon(ToolBar.class.getResource("/icons/info.png")));

                         mInfoButton.addActionListener(mActionListener);

                         mInfoButton.setActionCommand(EActionCommands.INFO_DIALOG.toString());                        

                         mInfoButton.addFocusListener(new HelpFocusListener("section.info"));

                 }

                 return mInfoButton;

         }

         private JToggleButton getTableButton() {

                 if (mTableButton == null) {

                         mTableButton = new JToggleButton(new ImageIcon(ToolBar.class.getResource("/icons/table.png")));

                         mTableButton.setActionCommand(EActionCommands.SHOW_TABLE_VIEW.toString());

                         mTableButton.addActionListener(mActionListener);

                         mRedo.addFocusListener(new HelpFocusListener("section.show_table"));

                 }

                 return mTableButton;

         }

         private void changeLanguage() {

                 mNewButton.setToolTipText(mTranslation.getValue("menu.file.new.tooltip"));

                 mOpenButton.setToolTipText(mTranslation.getValue("menu.file.open.tooltip"));

                 mSaveButton.setToolTipText(mTranslation.getValue("menu.file.save.tooltip"));

                 mUndo.setToolTipText(mTranslation.getValue("menu.edit.undo.tooltip"));

                 mRedo.setToolTipText(mTranslation.getValue("menu.edit.redo.tooltip"));

                 mTableButton.setToolTipText(mTranslation.getValue("menu.show_table.tooltip"));

                 mBibTeXButton.setToolTipText(mTranslation.getValue("menu.bibtex_editor.tooltip"));

                 mHelpButton.setToolTipText(mTranslation.getValue("menu.help.help.tooltip"));

                 mInfoButton.setToolTipText(mTranslation.getValue("menu.help.info.tooltip"));

         }

         @Override

         public void propertyChange(PropertyChangeEvent event) {

                 if (mGlossItemsChangePublisher.isFileOpen() && mGlossItemsChangePublisher.isFileChanged()) {

                         mSaveButton.setEnabled(true);

                 }

                 if (UndoGlossStack.getInstance().undoSize() > 0) {

                         mUndo.setEnabled(true);

                 } else {

                         mUndo.setEnabled(false);

                 }

                 if (UndoGlossStack.getInstance().redoSize() > 0) {

                         mRedo.setEnabled(true);

                 } else {

                         mRedo.setEnabled(false);

                 }

                 if (event.getPropertyName().equals(EActionCommands.CREATE_NEW_FILE.toString())) {

                         mSaveButton.setEnabled(false);

                 }

                 if (event.getPropertyName().equals(EActionCommands.CREATE_NEW_FILE.toString()) ||

                         event.getPropertyName().equals(EActionCommands.OPEN_FILE.toString()) ||

                         event.getPropertyName().equals(EActionCommands.SAVE_FILE.toString()) ||

                         event.getPropertyName().equals(EActionCommands.SAVE_FILE_AS.toString()) ) {

                         mUndo.setEnabled(false);

                         mRedo.setEnabled(false);

                 }

                 if (event.getPropertyName().equals(EActionCommands.LANGUAGE_CHANGED.toString())) {

                         changeLanguage();

                 }

         }

 }