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/*****************************************************************************
* Copyright (c) 2010 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:
* Nicolas Guyomar (Mia-Software) - initial API and implementation
* Nicolas Guyomar (Mia-Software) - Bug 334546 - [celleditors] no border on Text field
* Nicolas Bros (Mia-Software) - Bug 343655 - CharComposite : magic numbers
*****************************************************************************/
package org.eclipse.emf.facet.widgets.celleditors.ecore.composite;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.emf.facet.widgets.celleditors.ecore.Activator;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
public class CharComposite extends StringComposite<Character> {
public CharComposite(final Composite parent) {
this(parent, SWT.NONE);
}
public CharComposite(final Composite parent, final int style) {
super(parent, style);
getTextField().addListener(SWT.Verify, new Listener() {
public void handleEvent(final Event event) {
if (event.keyCode != SWT.BS && event.keyCode != SWT.DEL) {
if (CharComposite.this.getTextField().getSelectionCount() < 1) {
if (CharComposite.this.getTextField().getText().length() >= 1) {
event.doit = false;
return;
}
}
}
}
});
}
@Override
public IConverter<Character> initConverter() {
return new IConverter<Character>() {
public Character toObject(final String string) {
if (string != null && string.length() > 0) {
try {
return new Character(string.charAt(0));
} catch (Exception e) {
return null;
}
}
return null;
}
public String toString(final Character object) {
return object.toString();
}
};
}
@Override
public IStatus validate(final String string) {
if (string.length() == 1) {
return new Status(IStatus.OK, Activator.PLUGIN_ID, ""); //$NON-NLS-1$
}
return new Status(IStatus.ERROR, Activator.PLUGIN_ID, ""); //$NON-NLS-1$
}
}
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