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/*******************************************************************************
* Copyright (c) 2014 TwelveTone LLC 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:
* Steven Spungin <steven@spungin.tv> - initial API and implementation, Bug 432555
*******************************************************************************/
package org.eclipse.e4.tools.emf.ui.internal.common.component.tabs;
import org.eclipse.e4.tools.emf.ui.internal.common.resourcelocator.dialogs.UriDialogType;
import org.eclipse.e4.core.contexts.IEclipseContext;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.ecore.EAttribute;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.edit.command.SetCommand;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.jface.util.Policy;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.CheckboxCellEditor;
import org.eclipse.jface.viewers.EditingSupport;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TableViewerColumn;
import org.eclipse.jface.viewers.TextCellEditor;
import org.eclipse.swt.SWT;
// Restrictions: Only handles boolean and String types
class EAttributeEditingSupport extends EditingSupport {
private String attName;
private TableViewer tableViewer;
private boolean wasNull;
private IEclipseContext context;
static public enum ATT_TYPE {
STRING, BOOLEAN, INTEGER, NOT_AN_ATTRIBUTE, OTHER;
}
public EAttributeEditingSupport(TableViewer tableViewer, String attName, IEclipseContext context) {
super(tableViewer);
this.tableViewer = tableViewer;
this.attName = attName;
this.context = context;
}
@Override
protected CellEditor getCellEditor(Object element) {
switch (getAttributeType(element, attName)) {
case BOOLEAN:
return new CheckboxCellEditor(tableViewer.getTable(), SWT.CHECK);
case STRING:
case INTEGER:
default:
if ("contributionURI".equals(attName)) { //$NON-NLS-1$
return new ContributionUriCellEditor(tableViewer.getTable(), SWT.NONE, context, UriDialogType.BUNDLECLASS);
}
if ("iconURI".equals(attName)) { //$NON-NLS-1$
return new ContributionUriCellEditor(tableViewer.getTable(), SWT.NONE, context, UriDialogType.ICON);
}
return new TextCellEditor(tableViewer.getTable(), SWT.NONE);
}
}
static public ATT_TYPE getAttributeType(Object element, String attName) {
EAttribute att = EmfUtil.getAttribute((EObject) element, attName);
if (att == null) {
return ATT_TYPE.NOT_AN_ATTRIBUTE;
}
String instanceTypeName = att.getEType().getInstanceTypeName();
if (instanceTypeName.equals(String.class.getName())) {
return ATT_TYPE.STRING;
} else if (instanceTypeName.equals(boolean.class.getName())) {
return ATT_TYPE.BOOLEAN;
} else if (instanceTypeName.equals(int.class.getName())) {
return ATT_TYPE.INTEGER;
} else {
return ATT_TYPE.OTHER;
}
}
@Override
protected boolean canEdit(Object element) {
EAttribute att = EmfUtil.getAttribute((EObject) element, attName);
if (att == null) {
return false;
} else {
String instanceTypeName = att.getEType().getInstanceTypeName();
if (instanceTypeName.equals(String.class.getName())) {
return true;
} else if (instanceTypeName.equals(boolean.class.getName())) {
return true;
} else if (instanceTypeName.equals(int.class.getName())) {
return true;
} else {
return false;
}
}
}
@Override
protected Object getValue(Object element) {
EObject eObject = (EObject) element;
Object value = eObject.eGet(EmfUtil.getAttribute(eObject, attName));
switch (getAttributeType(element, attName)) {
case BOOLEAN:
wasNull = false;
break;
case INTEGER:
if (value == null) {
value = ""; //$NON-NLS-1$
wasNull = true;
} else {
return Integer.toString((Integer) value);
}
break;
case STRING:
default:
if (value == null) {
value = ""; //$NON-NLS-1$
wasNull = true;
} else {
wasNull = false;
}
break;
}
return value;
}
@Override
protected void setValue(Object element, Object value) {
EObject eObject = (EObject) element;
switch (getAttributeType(element, attName)) {
case INTEGER:
if (value.equals("")) { //$NON-NLS-1$
value = null;
} else {
try {
value = Integer.parseInt(value.toString());
} catch (Exception e) {
return;
}
}
break;
case BOOLEAN:
case STRING:
default:
if (value.equals("") && wasNull) { //$NON-NLS-1$
value = null;
}
break;
}
Command cmd = SetCommand.create(context.get(EditingDomain.class), eObject, EmfUtil.getAttribute(eObject, attName), value);
context.get(EditingDomain.class).getCommandStack().execute(cmd);
TableViewerUtil.updateAndPack(tableViewer, eObject);
}
static public TableViewerColumn getTableViewerColumn(TableViewer viewer, int index) {
return (TableViewerColumn) viewer.getTable().getColumn(index).getData(Policy.JFACE + ".columnViewer"); //$NON-NLS-1$
}
}
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