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/*****************************************************************************
* Copyright (c) 2014 CEA LIST.
*
*
* 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:
* Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.nattable.dataprovider;
import org.eclipse.emf.common.notify.Adapter;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.impl.AdapterImpl;
import org.eclipse.papyrus.infra.nattable.manager.table.INattableModelManager;
import org.eclipse.papyrus.infra.nattable.model.nattable.NattablePackage;
import org.eclipse.papyrus.infra.nattable.model.nattable.nattableaxisconfiguration.AbstractHeaderAxisConfiguration;
import org.eclipse.papyrus.infra.nattable.model.nattable.nattableaxisconfiguration.AxisIndexStyle;
import org.eclipse.papyrus.infra.nattable.model.nattable.nattableaxisconfiguration.NattableaxisconfigurationPackage;
import org.eclipse.papyrus.infra.tools.util.IntegerAndSpreadsheetNumberConverter;
/**
*
* Abstract class used to display index header
*
*/
public abstract class AbstractIndexHeaderDataProvider extends AbstractDataProvider {
/** fields used to know what display in the headers */
protected boolean displayIndex;
/** the style used to display the index of the axis */
protected AxisIndexStyle style;
/** listener on {@link Table#isInvertAxis()} feature */
private Adapter invertedListener;
/**
* listener on the axis configuration
*/
private Adapter axisListener;
/**
* listener on the table
*/
private Adapter localHeaderConfigListener;
/**
* the listen axis configuration
*/
private AbstractHeaderAxisConfiguration listenAxisConfiguration;
/**
*
* Constructor.
*
* @param tableModelManager
* the table manager
*/
public AbstractIndexHeaderDataProvider(final INattableModelManager tableModelManager) {
super(tableModelManager);
this.listenAxisConfiguration = getAxisConfiguration();
initListeners();
this.manager.getTable().eAdapters().add(this.invertedListener);
this.manager.getTable().eAdapters().add(this.localHeaderConfigListener);
initFields();
}
/**
* Create the listeners, but doesn't assign them to an object
*/
protected void initListeners() {
this.axisListener = new AdapterImpl() {
@Override
public void notifyChanged(Notification msg) {
final Object feature = msg.getFeature();
if (feature != null) {
if (feature.equals(NattableaxisconfigurationPackage.eINSTANCE.getAbstractHeaderAxisConfiguration_DisplayIndex())) {
displayIndex = msg.getNewBooleanValue();
} else if (feature.equals(NattableaxisconfigurationPackage.eINSTANCE.getAbstractHeaderAxisConfiguration_IndexStyle())) {
style = AxisIndexStyle.get(msg.getNewStringValue());
}
}
}
};
this.invertedListener = new AdapterImpl() {
@Override
public void notifyChanged(Notification msg) {
if (msg.getFeature() == NattablePackage.eINSTANCE.getTable_InvertAxis()) {
final Object oldValue = msg.getOldValue();
final Object newValue = msg.getNewValue();
if (oldValue != null && newValue != null) {
initFields();
}
}
}
};
this.localHeaderConfigListener = new AdapterImpl() {
@Override
public void notifyChanged(Notification msg) {
if (msg.getFeature() == NattablePackage.eINSTANCE.getTable_LocalColumnHeaderAxisConfiguration() || msg.getFeature() == NattablePackage.eINSTANCE.getTable_LocalRowHeaderAxisConfiguration()) {
initFields();
}
}
};
}
/**
* init the field value, and update the listen axis if required
*/
private void initFields() {
if (this.listenAxisConfiguration != getAxisConfiguration() && this.listenAxisConfiguration != null) {
this.listenAxisConfiguration.eAdapters().remove(this.axisListener);
}
this.listenAxisConfiguration = getAxisConfiguration();
if (this.listenAxisConfiguration != null) {
this.listenAxisConfiguration.eAdapters().add(this.axisListener);
if (this.listenAxisConfiguration instanceof AbstractHeaderAxisConfiguration) {
AbstractHeaderAxisConfiguration config = this.listenAxisConfiguration;
this.style = config.getIndexStyle();
this.displayIndex = config.isDisplayIndex();
}
}
}
/**
*
* @param axisIndex
* the index of the axis
* @return
* the index to display according to the index style
*/
protected Object getAxisIndex(int axisIndex) {
if (axisIndex > -1) {
switch (this.style) {
case ALPHABETIC:
return IntegerAndSpreadsheetNumberConverter.toString(axisIndex + 1);
case NUMERIC:
return axisIndex+1;
}
}
return null;
}
/**
* remove the listener
*/
protected void removeListeners() {
if (this.listenAxisConfiguration != null) {
this.listenAxisConfiguration.eAdapters().remove(this.axisListener);
}
this.manager.getTable().eAdapters().remove(this.invertedListener);
this.manager.getTable().eAdapters().remove(this.localHeaderConfigListener);
}
/**
*
* @return
* the axis configuration to listen
*/
protected abstract AbstractHeaderAxisConfiguration getAxisConfiguration();
}
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