| /******************************************************************************* |
| * Copyright (c) 2000, 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ant.internal.ui.preferences; |
| |
| import org.eclipse.jface.preference.IPreferenceStore; |
| import org.eclipse.jface.preference.PreferenceStore; |
| import org.eclipse.jface.util.IPropertyChangeListener; |
| import org.eclipse.jface.util.PropertyChangeEvent; |
| |
| /** |
| * An overlaying preference store. |
| */ |
| class OverlayPreferenceStore implements IPreferenceStore { |
| |
| |
| public static final class TypeDescriptor { |
| private TypeDescriptor() { |
| } |
| } |
| |
| public static final TypeDescriptor BOOLEAN= new TypeDescriptor(); |
| public static final TypeDescriptor DOUBLE= new TypeDescriptor(); |
| public static final TypeDescriptor FLOAT= new TypeDescriptor(); |
| public static final TypeDescriptor INT= new TypeDescriptor(); |
| public static final TypeDescriptor LONG= new TypeDescriptor(); |
| public static final TypeDescriptor STRING= new TypeDescriptor(); |
| |
| public static class OverlayKey { |
| |
| TypeDescriptor fDescriptor; |
| String fKey; |
| |
| public OverlayKey(TypeDescriptor descriptor, String key) { |
| fDescriptor= descriptor; |
| fKey= key; |
| } |
| } |
| |
| private class PropertyListener implements IPropertyChangeListener { |
| |
| /* |
| * @see IPropertyChangeListener#propertyChange(PropertyChangeEvent) |
| */ |
| public void propertyChange(PropertyChangeEvent event) { |
| OverlayKey key= findOverlayKey(event.getProperty()); |
| if (key != null) |
| propagateProperty(fParent, key, fStore); |
| } |
| } |
| |
| |
| private IPreferenceStore fParent; |
| private IPreferenceStore fStore; |
| private OverlayKey[] fOverlayKeys; |
| |
| private PropertyListener fPropertyListener; |
| |
| |
| public OverlayPreferenceStore(IPreferenceStore parent, OverlayKey[] overlayKeys) { |
| fParent= parent; |
| fOverlayKeys= overlayKeys; |
| fStore= new PreferenceStore(); |
| } |
| |
| private OverlayKey findOverlayKey(String key) { |
| for (int i= 0; i < fOverlayKeys.length; i++) { |
| if (fOverlayKeys[i].fKey.equals(key)) |
| return fOverlayKeys[i]; |
| } |
| return null; |
| } |
| |
| private boolean covers(String key) { |
| return (findOverlayKey(key) != null); |
| } |
| |
| private void propagateProperty(IPreferenceStore orgin, OverlayKey key, IPreferenceStore target) { |
| |
| if (orgin.isDefault(key.fKey)) { |
| if (!target.isDefault(key.fKey)) |
| target.setToDefault(key.fKey); |
| return; |
| } |
| |
| TypeDescriptor d= key.fDescriptor; |
| if (BOOLEAN == d) { |
| |
| boolean originValue= orgin.getBoolean(key.fKey); |
| boolean targetValue= target.getBoolean(key.fKey); |
| if (targetValue != originValue) |
| target.setValue(key.fKey, originValue); |
| |
| } else if (DOUBLE == d) { |
| |
| double originValue= orgin.getDouble(key.fKey); |
| double targetValue= target.getDouble(key.fKey); |
| if (targetValue != originValue) |
| target.setValue(key.fKey, originValue); |
| |
| } else if (FLOAT == d) { |
| |
| float originValue= orgin.getFloat(key.fKey); |
| float targetValue= target.getFloat(key.fKey); |
| if (targetValue != originValue) |
| target.setValue(key.fKey, originValue); |
| |
| } else if (INT == d) { |
| |
| int originValue= orgin.getInt(key.fKey); |
| int targetValue= target.getInt(key.fKey); |
| if (targetValue != originValue) |
| target.setValue(key.fKey, originValue); |
| |
| } else if (LONG == d) { |
| |
| long originValue= orgin.getLong(key.fKey); |
| long targetValue= target.getLong(key.fKey); |
| if (targetValue != originValue) |
| target.setValue(key.fKey, originValue); |
| |
| } else if (STRING == d) { |
| |
| String originValue= orgin.getString(key.fKey); |
| String targetValue= target.getString(key.fKey); |
| if (targetValue != null && originValue != null && !targetValue.equals(originValue)) |
| target.setValue(key.fKey, originValue); |
| |
| } |
| } |
| |
| public void propagate() { |
| for (int i= 0; i < fOverlayKeys.length; i++) |
| propagateProperty(fStore, fOverlayKeys[i], fParent); |
| } |
| |
| private void loadProperty(IPreferenceStore orgin, OverlayKey key, IPreferenceStore target, boolean forceInitialization) { |
| TypeDescriptor d= key.fDescriptor; |
| if (BOOLEAN == d) { |
| |
| if (forceInitialization) |
| target.setValue(key.fKey, true); |
| target.setValue(key.fKey, orgin.getBoolean(key.fKey)); |
| target.setDefault(key.fKey, orgin.getDefaultBoolean(key.fKey)); |
| |
| } else if (DOUBLE == d) { |
| |
| if (forceInitialization) |
| target.setValue(key.fKey, 1.0D); |
| target.setValue(key.fKey, orgin.getDouble(key.fKey)); |
| target.setDefault(key.fKey, orgin.getDefaultDouble(key.fKey)); |
| |
| } else if (FLOAT == d) { |
| |
| if (forceInitialization) |
| target.setValue(key.fKey, 1.0F); |
| target.setValue(key.fKey, orgin.getFloat(key.fKey)); |
| target.setDefault(key.fKey, orgin.getDefaultFloat(key.fKey)); |
| |
| } else if (INT == d) { |
| |
| if (forceInitialization) |
| target.setValue(key.fKey, 1); |
| target.setValue(key.fKey, orgin.getInt(key.fKey)); |
| target.setDefault(key.fKey, orgin.getDefaultInt(key.fKey)); |
| |
| } else if (LONG == d) { |
| |
| if (forceInitialization) |
| target.setValue(key.fKey, 1L); |
| target.setValue(key.fKey, orgin.getLong(key.fKey)); |
| target.setDefault(key.fKey, orgin.getDefaultLong(key.fKey)); |
| |
| } else if (STRING == d) { |
| |
| if (forceInitialization) |
| target.setValue(key.fKey, "1"); //$NON-NLS-1$ |
| target.setValue(key.fKey, orgin.getString(key.fKey)); |
| target.setDefault(key.fKey, orgin.getDefaultString(key.fKey)); |
| |
| } |
| } |
| |
| public void load() { |
| for (int i= 0; i < fOverlayKeys.length; i++) |
| loadProperty(fParent, fOverlayKeys[i], fStore, true); |
| } |
| |
| public void loadDefaults() { |
| for (int i= 0; i < fOverlayKeys.length; i++) |
| setToDefault(fOverlayKeys[i].fKey); |
| } |
| |
| public void start() { |
| if (fPropertyListener == null) { |
| fPropertyListener= new PropertyListener(); |
| fParent.addPropertyChangeListener(fPropertyListener); |
| } |
| } |
| |
| public void stop() { |
| if (fPropertyListener != null) { |
| fParent.removePropertyChangeListener(fPropertyListener); |
| fPropertyListener= null; |
| } |
| } |
| |
| /* |
| * @see IPreferenceStore#addPropertyChangeListener(IPropertyChangeListener) |
| */ |
| public void addPropertyChangeListener(IPropertyChangeListener listener) { |
| fStore.addPropertyChangeListener(listener); |
| } |
| |
| /* |
| * @see IPreferenceStore#removePropertyChangeListener(IPropertyChangeListener) |
| */ |
| public void removePropertyChangeListener(IPropertyChangeListener listener) { |
| fStore.removePropertyChangeListener(listener); |
| } |
| |
| /* |
| * @see IPreferenceStore#firePropertyChangeEvent(String, Object, Object) |
| */ |
| public void firePropertyChangeEvent(String name, Object oldValue, Object newValue) { |
| fStore.firePropertyChangeEvent(name, oldValue, newValue); |
| } |
| |
| /* |
| * @see IPreferenceStore#contains(String) |
| */ |
| public boolean contains(String name) { |
| return fStore.contains(name); |
| } |
| |
| /* |
| * @see IPreferenceStore#getBoolean(String) |
| */ |
| public boolean getBoolean(String name) { |
| return fStore.getBoolean(name); |
| } |
| |
| /* |
| * @see IPreferenceStore#getDefaultBoolean(String) |
| */ |
| public boolean getDefaultBoolean(String name) { |
| return fStore.getDefaultBoolean(name); |
| } |
| |
| /* |
| * @see IPreferenceStore#getDefaultDouble(String) |
| */ |
| public double getDefaultDouble(String name) { |
| return fStore.getDefaultDouble(name); |
| } |
| |
| /* |
| * @see IPreferenceStore#getDefaultFloat(String) |
| */ |
| public float getDefaultFloat(String name) { |
| return fStore.getDefaultFloat(name); |
| } |
| |
| /* |
| * @see IPreferenceStore#getDefaultInt(String) |
| */ |
| public int getDefaultInt(String name) { |
| return fStore.getDefaultInt(name); |
| } |
| |
| /* |
| * @see IPreferenceStore#getDefaultLong(String) |
| */ |
| public long getDefaultLong(String name) { |
| return fStore.getDefaultLong(name); |
| } |
| |
| /* |
| * @see IPreferenceStore#getDefaultString(String) |
| */ |
| public String getDefaultString(String name) { |
| return fStore.getDefaultString(name); |
| } |
| |
| /* |
| * @see IPreferenceStore#getDouble(String) |
| */ |
| public double getDouble(String name) { |
| return fStore.getDouble(name); |
| } |
| |
| /* |
| * @see IPreferenceStore#getFloat(String) |
| */ |
| public float getFloat(String name) { |
| return fStore.getFloat(name); |
| } |
| |
| /* |
| * @see IPreferenceStore#getInt(String) |
| */ |
| public int getInt(String name) { |
| return fStore.getInt(name); |
| } |
| |
| /* |
| * @see IPreferenceStore#getLong(String) |
| */ |
| public long getLong(String name) { |
| return fStore.getLong(name); |
| } |
| |
| /* |
| * @see IPreferenceStore#getString(String) |
| */ |
| public String getString(String name) { |
| return fStore.getString(name); |
| } |
| |
| /* |
| * @see IPreferenceStore#isDefault(String) |
| */ |
| public boolean isDefault(String name) { |
| return fStore.isDefault(name); |
| } |
| |
| /* |
| * @see IPreferenceStore#needsSaving() |
| */ |
| public boolean needsSaving() { |
| return fStore.needsSaving(); |
| } |
| |
| /* |
| * @see IPreferenceStore#putValue(String, String) |
| */ |
| public void putValue(String name, String value) { |
| if (covers(name)) |
| fStore.putValue(name, value); |
| } |
| |
| /* |
| * @see IPreferenceStore#setDefault(String, double) |
| */ |
| public void setDefault(String name, double value) { |
| if (covers(name)) |
| fStore.setDefault(name, value); |
| } |
| |
| /* |
| * @see IPreferenceStore#setDefault(String, float) |
| */ |
| public void setDefault(String name, float value) { |
| if (covers(name)) |
| fStore.setDefault(name, value); |
| } |
| |
| /* |
| * @see IPreferenceStore#setDefault(String, int) |
| */ |
| public void setDefault(String name, int value) { |
| if (covers(name)) |
| fStore.setDefault(name, value); |
| } |
| |
| /* |
| * @see IPreferenceStore#setDefault(String, long) |
| */ |
| public void setDefault(String name, long value) { |
| if (covers(name)) |
| fStore.setDefault(name, value); |
| } |
| |
| /* |
| * @see IPreferenceStore#setDefault(String, String) |
| */ |
| public void setDefault(String name, String value) { |
| if (covers(name)) |
| fStore.setDefault(name, value); |
| } |
| |
| /* |
| * @see IPreferenceStore#setDefault(String, boolean) |
| */ |
| public void setDefault(String name, boolean value) { |
| if (covers(name)) |
| fStore.setDefault(name, value); |
| } |
| |
| /* |
| * @see IPreferenceStore#setToDefault(String) |
| */ |
| public void setToDefault(String name) { |
| fStore.setToDefault(name); |
| } |
| |
| /* |
| * @see IPreferenceStore#setValue(String, double) |
| */ |
| public void setValue(String name, double value) { |
| if (covers(name)) |
| fStore.setValue(name, value); |
| } |
| |
| /* |
| * @see IPreferenceStore#setValue(String, float) |
| */ |
| public void setValue(String name, float value) { |
| if (covers(name)) |
| fStore.setValue(name, value); |
| } |
| |
| /* |
| * @see IPreferenceStore#setValue(String, int) |
| */ |
| public void setValue(String name, int value) { |
| if (covers(name)) |
| fStore.setValue(name, value); |
| } |
| |
| /* |
| * @see IPreferenceStore#setValue(String, long) |
| */ |
| public void setValue(String name, long value) { |
| if (covers(name)) |
| fStore.setValue(name, value); |
| } |
| |
| /* |
| * @see IPreferenceStore#setValue(String, String) |
| */ |
| public void setValue(String name, String value) { |
| if (covers(name)) |
| fStore.setValue(name, value); |
| } |
| |
| /* |
| * @see IPreferenceStore#setValue(String, boolean) |
| */ |
| public void setValue(String name, boolean value) { |
| if (covers(name)) |
| fStore.setValue(name, value); |
| } |
| } |
