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/*******************************************************************************
* Copyright (c) 2007, 2009 Wind River Systems 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.dsf.ui.viewmodel.properties;
import com.ibm.icu.text.MessageFormat;
import java.util.Map;
import org.eclipse.cdt.dsf.internal.ui.DsfUIPlugin;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.debug.internal.ui.viewers.model.provisional.ILabelUpdate;
/**
* The text attribute of a label. It uses a message format string in order to
* compose the text string. The parameter names determine the array of objects
* given to the message format.
*
* @see MessageFormat#format(Object[], StringBuffer, java.text.FieldPosition)
* @see LabelAttribute
* @see LabelColumnInfo
* @see PropertiesBasedLabelProvider
*
* @since 1.0
*/
public class LabelText extends LabelAttribute {
public static final MessageFormat DEFAULT_MESSAGE = new MessageFormat(MessagesForProperties.DefaultLabelMessage_label);
/**
* Message format used to generate the label text.
*
*/
private MessageFormat fMessageFormat;
/**
* The property names needed for the message format. The property values
* corresponding to these names are given the the {@link MessageFormat#format(Object[], StringBuffer, java.text.FieldPosition)}
* method.
*/
private String[] fPropertyNames;
public LabelText() {
this(DEFAULT_MESSAGE, EMPTY_PROPERTY_NAMES_ARRAY);
}
/**
* @since 2.0
* @param formatPattern
* @param propertyNames
*/
public LabelText(String formatPattern, String[] propertyNames) {
this (new MessageFormat(formatPattern), propertyNames);
}
public LabelText(MessageFormat format, String[] propertyNames) {
fMessageFormat = format;
fPropertyNames = propertyNames;
}
@Override
public String[] getPropertyNames() {
return fPropertyNames;
}
public MessageFormat getMessageFormat() {
return fMessageFormat;
}
public void setMessageFormat(MessageFormat messageFormat) {
fMessageFormat = messageFormat;
}
@Override
public void updateAttribute(ILabelUpdate update, int columnIndex, IStatus status, Map<String, Object> properties) {
String[] propertyNames = getPropertyNames();
Object[] propertyValues = new Object[propertyNames.length];
for (int i = 0; i < propertyNames.length; i++) {
propertyValues[i] = getPropertyValue(propertyNames[i], status, properties);
}
try {
update.setLabel(getMessageFormat().format(propertyValues, new StringBuffer(), null).toString(), columnIndex);
} catch (IllegalArgumentException e) {
update.setStatus(new Status(IStatus.ERROR, DsfUIPlugin.PLUGIN_ID, 0, "Failed formatting a message for column " + columnIndex + ", for update " + update, e)); //$NON-NLS-1$ //$NON-NLS-2$
}
}
protected Object getPropertyValue(String propertyName, IStatus status, Map<String, Object> properties) {
return properties.get(propertyName);
}
}
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