/*
* Created on 02.10.2003
*
* To change the template for this generated file go to
* Window>Preferences>Java>Code Generation>Code and Comments
*/
package com.liferay.ide.velocity.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;
/**
* DOCUMENT ME!
*
* @version $Revision: 7 $
* @author <a href="mailto:akmal.sarhan@gmail.com">Akmal Sarhan </a>
*/
public class VelocityOverlayPreferenceStore implements IPreferenceStore
{
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();
private IPreferenceStore fParent;
private IPreferenceStore fStore;
private OverlayKey[] fOverlayKeys;
private PropertyListener fPropertyListener;
public VelocityOverlayPreferenceStore(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);
}
}
}
/**
* DOCUMENT ME!
*/
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));
}
}
/**
* DOCUMENT ME!
*/
public void load()
{
for (int i = 0; i < fOverlayKeys.length; i++)
{
loadProperty(fParent, fOverlayKeys[i], fStore, true);
}
}
/**
* DOCUMENT ME!
*/
public void loadDefaults()
{
for (int i = 0; i < fOverlayKeys.length; i++)
{
setToDefault(fOverlayKeys[i].fKey);
}
}
/**
* DOCUMENT ME!
*/
public void start()
{
if (fPropertyListener == null)
{
fPropertyListener = new PropertyListener();
fParent.addPropertyChangeListener(fPropertyListener);
}
}
/**
* DOCUMENT ME!
*/
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);
}
}
public static final class TypeDescriptor
{
private 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);
}
}
}
}