Java tutorial
/* * Created on Dec 7, 2005 at 5:05:12 PM. * * Copyright (c) 2005 Robert Virkus / Enough Software * * This file is part of J2ME Polish. * * J2ME Polish 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. * * J2ME Polish 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 J2ME Polish; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Commercial licenses are also available, please * refer to the accompanying LICENSE.txt or visit * http://www.j2mepolish.org for details. */ package de.enough.mepose.ui.propertyPages; /** * This class is stolen from org.eclipse.jdt.internal.ui.text.PreferencesAdapter. * We copy the internal api to get what we want. We are mean. * <br>Copyright Enough Software 2005 * <pre> * history * Dec 7, 2005 - rickyn creation * </pre> * @author Richard Nkrumah, Richard.Nkrumah@enough.de */ import org.eclipse.core.runtime.ListenerList; import org.eclipse.core.runtime.Preferences; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.util.IPropertyChangeListener; import org.eclipse.jface.util.PropertyChangeEvent; /** * * Adapts {@link org.eclipse.core.runtime.Preferences} to * {@link org.eclipse.jface.preference.IPreferenceStore} * * @since 3.0 */ public class PreferencesAdapter implements IPreferenceStore { /** * Property change listener. Listens for events of type * {@link org.eclipse.core.runtime.Preferences.PropertyChangeEvent} and fires * a {@link org.eclipse.jface.util.PropertyChangeEvent} on the * adapter with arguments from the received event. */ private class PropertyChangeListener implements Preferences.IPropertyChangeListener { /* * @see org.eclipse.core.runtime.Preferences.IPropertyChangeListener#propertyChange(org.eclipse.core.runtime.Preferences.PropertyChangeEvent) */ public void propertyChange(Preferences.PropertyChangeEvent event) { firePropertyChangeEvent(event.getProperty(), event.getOldValue(), event.getNewValue()); } } /** Listeners on the adapter */ private ListenerList fListeners = new ListenerList(ListenerList.IDENTITY); /** Listener on the adapted Preferences */ private PropertyChangeListener fListener = new PropertyChangeListener(); /** Adapted Preferences */ private Preferences fPreferences; /** True iff no events should be forwarded */ private boolean fSilent; /** * Initialize with empty Preferences. */ public PreferencesAdapter() { this(new Preferences()); } /** * Initialize with the given Preferences. * * @param preferences The preferences to wrap. */ public PreferencesAdapter(Preferences preferences) { this.fPreferences = preferences; } /** * {@inheritDoc} */ public void addPropertyChangeListener(IPropertyChangeListener listener) { if (this.fListeners.size() == 0) this.fPreferences.addPropertyChangeListener(this.fListener); this.fListeners.add(listener); } /** * {@inheritDoc} */ public void removePropertyChangeListener(IPropertyChangeListener listener) { this.fListeners.remove(listener); if (this.fListeners.size() == 0) this.fPreferences.removePropertyChangeListener(this.fListener); } /** * {@inheritDoc} */ public boolean contains(String name) { return this.fPreferences.contains(name); } /** * {@inheritDoc} */ public void firePropertyChangeEvent(String name, Object oldValue, Object newValue) { if (!this.fSilent) { PropertyChangeEvent event = new PropertyChangeEvent(this, name, oldValue, newValue); Object[] listeners = this.fListeners.getListeners(); for (int i = 0; i < listeners.length; i++) ((IPropertyChangeListener) listeners[i]).propertyChange(event); } } /** * {@inheritDoc} */ public boolean getBoolean(String name) { return this.fPreferences.getBoolean(name); } /** * {@inheritDoc} */ public boolean getDefaultBoolean(String name) { return this.fPreferences.getDefaultBoolean(name); } /** * {@inheritDoc} */ public double getDefaultDouble(String name) { return this.fPreferences.getDefaultDouble(name); } /** * {@inheritDoc} */ public float getDefaultFloat(String name) { return this.fPreferences.getDefaultFloat(name); } /** * {@inheritDoc} */ public int getDefaultInt(String name) { return this.fPreferences.getDefaultInt(name); } /** * {@inheritDoc} */ public long getDefaultLong(String name) { return this.fPreferences.getDefaultLong(name); } /** * {@inheritDoc} */ public String getDefaultString(String name) { return this.fPreferences.getDefaultString(name); } /** * {@inheritDoc} */ public double getDouble(String name) { return this.fPreferences.getDouble(name); } /** * {@inheritDoc} */ public float getFloat(String name) { return this.fPreferences.getFloat(name); } /** * {@inheritDoc} */ public int getInt(String name) { return this.fPreferences.getInt(name); } /** * {@inheritDoc} */ public long getLong(String name) { return this.fPreferences.getLong(name); } /** * {@inheritDoc} */ public String getString(String name) { return this.fPreferences.getString(name); } /** * {@inheritDoc} */ public boolean isDefault(String name) { return this.fPreferences.isDefault(name); } /** * {@inheritDoc} */ public boolean needsSaving() { return this.fPreferences.needsSaving(); } /** * {@inheritDoc} */ public void putValue(String name, String value) { try { this.fSilent = true; this.fPreferences.setValue(name, value); } finally { this.fSilent = false; } } /** * {@inheritDoc} */ public void setDefault(String name, double value) { this.fPreferences.setDefault(name, value); } /** * {@inheritDoc} */ public void setDefault(String name, float value) { this.fPreferences.setDefault(name, value); } /** * {@inheritDoc} */ public void setDefault(String name, int value) { this.fPreferences.setDefault(name, value); } /** * {@inheritDoc} */ public void setDefault(String name, long value) { this.fPreferences.setDefault(name, value); } /** * {@inheritDoc} */ public void setDefault(String name, String defaultObject) { this.fPreferences.setDefault(name, defaultObject); } /** * {@inheritDoc} */ public void setDefault(String name, boolean value) { this.fPreferences.setDefault(name, value); } /** * {@inheritDoc} */ public void setToDefault(String name) { this.fPreferences.setToDefault(name); } /** * {@inheritDoc} */ public void setValue(String name, double value) { this.fPreferences.setValue(name, value); } /** * {@inheritDoc} */ public void setValue(String name, float value) { this.fPreferences.setValue(name, value); } /** * {@inheritDoc} */ public void setValue(String name, int value) { this.fPreferences.setValue(name, value); } /** * {@inheritDoc} */ public void setValue(String name, long value) { this.fPreferences.setValue(name, value); } /** * {@inheritDoc} */ public void setValue(String name, String value) { this.fPreferences.setValue(name, value); } /** * {@inheritDoc} */ public void setValue(String name, boolean value) { this.fPreferences.setValue(name, value); } }