/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.uima.caseditor.editor.outline;
import org.apache.uima.cas.Type;
import org.apache.uima.cas.text.AnnotationFS;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.graphics.Image;
/**
* This <code>OutlineLabelProvider</code> returns the covered text of an <code>AnnotationFS</code>.
*/
class OutlineLabelProvider extends LabelProvider implements ITableLabelProvider {
public Image getColumnImage(Object element, int columnIndex) {
// no image available, just return null
return null;
}
public String getColumnText(Object element, int columnIndex) {
// there is only one column, if column index something
// else than 0, then there is an error
if (columnIndex != 0) {
// ... just return null
return null;
}
AnnotationFS annotation = (AnnotationFS) ((IAdaptable) element).getAdapter(AnnotationFS.class);
if (annotation != null) {
if (annotation.getCoveredText() != null)
return getStringWithoutNewLine(annotation.getCoveredText());
else
return "";
}
Type type = (Type) ((IAdaptable) element).getAdapter(Type.class);
if (type != null) {
return type.getShortName();
}
return "Unkown type";
}
private static String getStringWithoutNewLine(String string) {
StringBuilder stringBuilder = new StringBuilder(string.length());
char stringChars[] = string.toCharArray();
for (char element : stringChars) {
if (element == '\r') {
continue;
}
if (element == '\n') {
stringBuilder.append(' ');
continue;
}
stringBuilder.append(element);
}
return stringBuilder.toString();
}
}