/* | |
* 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.action; | |
import org.apache.uima.cas.Feature; | |
import org.apache.uima.cas.Type; | |
import org.apache.uima.cas.text.AnnotationFS; | |
import org.apache.uima.caseditor.editor.ICasDocument; | |
import org.apache.uima.caseditor.editor.ICasEditor; | |
import org.apache.uima.caseditor.editor.util.AnnotationSelection; | |
import org.eclipse.jface.viewers.IStructuredSelection; | |
import org.eclipse.ui.actions.BaseSelectionListenerAction; | |
/** | |
* Lowers the left side of the currently selected annotation by one. | |
*/ | |
public final class LowerLeftAnnotationSideAction extends BaseSelectionListenerAction { | |
/** The Constant ID. */ | |
public static final String ID = "LowerLeftAnnotationSide"; | |
/** The editor. */ | |
private ICasEditor editor; | |
/** | |
* Initializes a new instance. | |
* | |
* @param editor the editor | |
*/ | |
public LowerLeftAnnotationSideAction(ICasEditor editor) { | |
super("LowerLeftAnnotationSide"); | |
this.editor = editor; | |
setEnabled(false); | |
} | |
/* (non-Javadoc) | |
* @see org.eclipse.ui.actions.BaseSelectionListenerAction#updateSelection(org.eclipse.jface.viewers.IStructuredSelection) | |
*/ | |
@Override | |
protected boolean updateSelection(IStructuredSelection selection) { | |
AnnotationSelection annotation = new AnnotationSelection(selection); | |
return annotation.size() == 1; | |
} | |
/** | |
* Lower left annotation side. | |
* | |
* @param document the document | |
* @param annotation the annotation | |
*/ | |
public static void lowerLeftAnnotationSide(ICasDocument document, AnnotationFS annotation) { | |
Type annotationType = annotation.getType(); | |
Feature beginFeature = annotationType.getFeatureByBaseName("begin"); | |
if (annotation.getBegin() < annotation.getEnd()) { | |
annotation.setIntValue(beginFeature, annotation.getBegin() + 1); | |
} | |
document.update(annotation); | |
} | |
/** | |
* Increases the begin index of an annotation by one. | |
*/ | |
@Override | |
public void run() { | |
AnnotationSelection annotations = new AnnotationSelection(getStructuredSelection()); | |
AnnotationFS annotation = annotations.getFirst(); | |
lowerLeftAnnotationSide(editor.getDocument(), annotation); | |
} | |
} |