Content of file XmlDateCellEditor.java
/*******************************************************************************
* Copyright (c) 2011-2013 EclipseSource Muenchen GmbH and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Eugen Neufeld - initial API and implementation
*******************************************************************************/
package org.eclipse.emf.ecp.edit.internal.swt.table;
import java.text.DateFormat;
import java.text.MessageFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;
import javax.xml.datatype.XMLGregorianCalendar;
import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.UpdateValueStrategy;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.core.databinding.property.INativePropertyListener;
import org.eclipse.core.databinding.property.ISimplePropertyListener;
import org.eclipse.core.databinding.property.value.IValueProperty;
import org.eclipse.core.databinding.property.value.SimpleValueProperty;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecp.edit.internal.swt.util.DateUtil;
import org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor;
import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.FocusAdapter;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.TraverseEvent;
import org.eclipse.swt.events.TraverseListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.DateTime;
/**
* A cell editor for editing an {@link XMLGregorianCalendar}.
*
* @author Eugen Neufeld
*
*/
public class XmlDateCellEditor extends CellEditor implements ECPCellEditor {
private DateTime dateWidget;
private final DateFormat dateFormat = SimpleDateFormat.getDateInstance(DateFormat.MEDIUM);
/**
* Default constructor.
*/
public XmlDateCellEditor() {
}
/**
* A constructor which takes only a parent.
*
* @param parent the {@link Composite} to use as a parent.
*/
public XmlDateCellEditor(Composite parent) {
super(parent);
}
/**
* A constructor which takes the parent and the style.
*
* @param parent the {@link Composite} to use as a parent
* @param style the Style to set
*/
public XmlDateCellEditor(Composite parent, int style) {
super(parent, style);
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getValueProperty()
*/
@Override
public IValueProperty getValueProperty() {
return new SimpleValueProperty() {
@Override
public Object getValueType() {
return XMLGregorianCalendar.class;
}
@Override
protected Object doGetValue(Object source) {
return XmlDateCellEditor.this.doGetValue();
}
@Override
protected void doSetValue(Object source, Object value) {
XmlDateCellEditor.this.doSetValue(value);
}
@Override
public IObservableValue observe(Object source) {
if (source instanceof XmlDateCellEditor) {
return observe(dateWidget);
}
return super.observe(source);
}
@Override
public INativePropertyListener adaptListener(ISimplePropertyListener listener) {
return null;
}
};
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#instantiate(org.eclipse.emf.ecore.EStructuralFeature,
* org.eclipse.emf.ecp.view.spi.context.ViewModelContext)
*/
@Override
public void instantiate(EStructuralFeature feature, ViewModelContext viewModelContext) {
}
@Override
protected Control createControl(Composite parent) {
dateWidget = new DateTime(parent, SWT.DATE | SWT.DROP_DOWN);
dateWidget.setData(CUSTOM_VARIANT, "org_eclipse_emf_ecp_edit_cellEditor_xmlDate"); //$NON-NLS-1$
dateWidget.addKeyListener(new KeyAdapter() {
private static final long serialVersionUID = 1L;
// hook key pressed - see PR 14201
@Override
public void keyPressed(KeyEvent e) {
keyReleaseOccured(e);
}
});
dateWidget.addSelectionListener(new SelectionAdapter() {
private static final long serialVersionUID = 1L;
@Override
public void widgetDefaultSelected(SelectionEvent event) {
applyEditorValueAndDeactivate();
}
});
dateWidget.addTraverseListener(new TraverseListener() {
private static final long serialVersionUID = 1L;
@Override
public void keyTraversed(TraverseEvent e) {
if (e.detail == SWT.TRAVERSE_ESCAPE || e.detail == SWT.TRAVERSE_RETURN) {
e.doit = false;
}
}
});
dateWidget.addFocusListener(new FocusAdapter() {
private static final long serialVersionUID = 1L;
@Override
public void focusLost(FocusEvent e) {
XmlDateCellEditor.this.focusLost();
}
});
return dateWidget;
}
@Override
protected Object doGetValue() {
final Calendar selectedCalendarDate = Calendar.getInstance();
selectedCalendarDate.set(Calendar.YEAR, dateWidget.getYear());
selectedCalendarDate.set(Calendar.MONTH, dateWidget.getMonth());
selectedCalendarDate.set(Calendar.DAY_OF_MONTH, dateWidget.getDay());
return DateUtil.convertOnlyDateToXMLGregorianCalendar(selectedCalendarDate);
}
@Override
protected void doSetFocus() {
dateWidget.setFocus();
}
@Override
protected void doSetValue(Object value) {
if (value == null) {
return;
}
final XMLGregorianCalendar cal = (XMLGregorianCalendar) value;
final GregorianCalendar gregCal = cal.toGregorianCalendar();
dateWidget.setDate(gregCal.get(Calendar.YEAR), gregCal.get(Calendar.MONTH), gregCal.get(Calendar.DAY_OF_MONTH));
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.viewers.CellEditor#focusLost()
*/
@Override
protected void focusLost() {
if (isActivated()) {
applyEditorValueAndDeactivate();
}
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.viewers.CellEditor#keyReleaseOccured(org.eclipse.swt.events.KeyEvent)
*/
@Override
protected void keyReleaseOccured(KeyEvent keyEvent) {
super.keyReleaseOccured(keyEvent);
if (keyEvent.character == '\u001b') { // Escape character
fireCancelEditor();
} else if (keyEvent.character == '\t') { // tab key
applyEditorValueAndDeactivate();
}
}
/**
* Applies the currently selected value and deactiavates the cell editor.
*/
void applyEditorValueAndDeactivate() {
// must set the selection before getting value
final Object newValue = doGetValue();
markDirty();
final boolean isValid = isCorrect(newValue);
setValueValid(isValid);
if (!isValid) {
MessageFormat.format(getErrorMessage(), new Object[] { newValue });
}
fireApplyEditorValue();
deactivate();
}
/**
*
* {@inheritDoc}
*
* @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getFormatedString(java.lang.Object)
*/
@Override
public String getFormatedString(Object value) {
final XMLGregorianCalendar cal = (XMLGregorianCalendar) value;
if (value == null) {
return ""; //$NON-NLS-1$
}
return dateFormat.format(cal.toGregorianCalendar().getTime());
}
/**
*
* {@inheritDoc}
*
* @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getColumnWidthWeight()
*/
@Override
public int getColumnWidthWeight() {
return 75;
}
/**
*
* {@inheritDoc}
*
* @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getTargetToModelStrategy(org.eclipse.core.databinding.DataBindingContext)
*/
@Override
public UpdateValueStrategy getTargetToModelStrategy(DataBindingContext databindingContext) {
return null;
}
/**
*
* {@inheritDoc}
*
* @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getModelToTargetStrategy(org.eclipse.core.databinding.DataBindingContext)
*/
@Override
public UpdateValueStrategy getModelToTargetStrategy(DataBindingContext databindingContext) {
return null;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#setEditable(boolean)
*/
@Override
public void setEditable(boolean editable) {
if (dateWidget != null) {
dateWidget.setEnabled(editable);
}
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getImage(java.lang.Object)
*/
@Override
public Image getImage(Object value) {
return null;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getMinWidth()
*/
@Override
public int getMinWidth() {
return 0;
}
}