/* | |
* 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.taeconfigurator.editors.ui.dialogs; | |
import java.util.Arrays; | |
import java.util.Comparator; | |
import java.util.List; | |
import org.apache.uima.taeconfigurator.InternalErrorCDE; | |
import org.apache.uima.taeconfigurator.TAEConfiguratorPlugin; | |
import org.eclipse.core.resources.IContainer; | |
import org.eclipse.core.resources.IFile; | |
import org.eclipse.core.resources.IResource; | |
import org.eclipse.core.resources.IWorkspaceRoot; | |
import org.eclipse.core.runtime.CoreException; | |
import org.eclipse.swt.SWT; | |
import org.eclipse.swt.layout.GridData; | |
import org.eclipse.swt.widgets.Composite; | |
import org.eclipse.swt.widgets.Control; | |
import org.eclipse.swt.widgets.Event; | |
import org.eclipse.swt.widgets.Shell; | |
import org.eclipse.swt.widgets.Tree; | |
import org.eclipse.swt.widgets.TreeItem; | |
public class ResourcePickerDialog extends AbstractDialog { | |
protected Tree resourcesUI; | |
public IResource pickedResource; | |
private Object [] result; | |
public ResourcePickerDialog(Shell shell) { | |
super(shell, "Select a File", "Use this panel to select a file in the Workspace"); | |
} | |
private static final Comparator resourceComparator = new Comparator () { | |
public int compare(Object arg0, Object arg1) { | |
IResource r0 = (IResource) arg0; | |
IResource r1 = (IResource) arg1; | |
return r0.getName().compareTo(r1.getName()); | |
} | |
}; | |
private void populate(TreeItem parent, IResource[] resources) { | |
Arrays.sort(resources, resourceComparator); | |
for (int i = 0; i < resources.length; i++) { | |
TreeItem item = new TreeItem(parent, SWT.NULL); | |
IResource r = resources[i]; | |
item.setText(r.getName()); | |
item.setData(r); | |
if (r instanceof IContainer) { | |
new TreeItem(item, SWT.NULL); | |
} | |
} | |
} | |
protected Control createDialogArea(Composite parent) { | |
Composite mainArea = (Composite) super.createDialogArea(parent); | |
resourcesUI = newTree(mainArea, SWT.SINGLE); | |
((GridData)resourcesUI.getLayoutData()).heightHint = 400; | |
TreeItem topItem = new TreeItem(resourcesUI, SWT.NONE); | |
topItem.setText("Workspace"); | |
IWorkspaceRoot root = TAEConfiguratorPlugin.getWorkspace().getRoot().getWorkspace().getRoot(); | |
try { | |
IResource[] projects = root.members(); | |
populate(topItem, projects); | |
} catch (CoreException e) { | |
throw new InternalErrorCDE("unhandled exception", e); | |
} | |
topItem.setExpanded(true); | |
resourcesUI.addListener(SWT.Expand, this); | |
resourcesUI.addListener(SWT.Selection, this); | |
return mainArea; | |
} | |
/* (non-Javadoc) | |
* @see org.apache.uima.taeconfigurator.editors.ui.dialogs.AbstractDialog#handleEvent(org.eclipse.swt.widgets.Event) | |
*/ | |
public void handleEvent(Event event) { | |
if (event.widget == resourcesUI && | |
event.type == SWT.Expand) { | |
TreeItem expandedNode = (TreeItem) event.item; | |
TreeItem maybeDummy = expandedNode.getItem(0); | |
if (null == maybeDummy.getData()) { | |
maybeDummy.dispose(); | |
IResource parentResource = (IResource)expandedNode.getData(); | |
try { | |
populate(expandedNode, ((IContainer)parentResource).members()); | |
} catch (CoreException e) { | |
throw new InternalErrorCDE("unhandled exception", e); | |
} | |
} | |
} else if (event.widget == resourcesUI && event.type == SWT.Selection) { | |
copyValuesFromGUI(); | |
} | |
super.handleEvent(event); | |
} | |
/* (non-Javadoc) | |
* @see org.apache.uima.taeconfigurator.editors.ui.dialogs.AbstractDialog#copyValuesFromGUI() | |
*/ | |
public void copyValuesFromGUI() { | |
if (resourcesUI.getSelectionCount() > 0) { | |
pickedResource = (IResource)resourcesUI.getSelection()[0].getData(); | |
result = (null == pickedResource) ? null | |
: new IFile[] { | |
TAEConfiguratorPlugin.getWorkspace().getRoot().getFile( | |
pickedResource.getFullPath())}; | |
} | |
} | |
/* (non-Javadoc) | |
* @see org.apache.uima.taeconfigurator.editors.ui.dialogs.AbstractDialog#enableOK() | |
*/ | |
public void enableOK() { | |
if ( (0 < resourcesUI.getSelectionCount()) && | |
(resourcesUI.getSelection()[0].getData() instanceof IFile)) { | |
okButton.setEnabled(true); | |
} else { | |
okButton.setEnabled(false); | |
} | |
} | |
/* (non-Javadoc) | |
* @see org.apache.uima.taeconfigurator.editors.ui.dialogs.AbstractDialog#isValid() | |
*/ | |
public boolean isValid() { | |
return true; | |
} | |
public Object[] getResult() { | |
return result; | |
} | |
public void setResult(List aResult) { | |
if (null == aResult) { | |
result = null; | |
} else { | |
aResult.toArray(result = new Object[aResult.size()]); | |
} | |
} | |
} |