| /* |
| * 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.core.runtime.IPath; |
| 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.TreeColumn; |
| import org.eclipse.swt.widgets.TreeItem; |
| |
| public class ResourcePickerDialog extends AbstractDialog { |
| |
| protected Tree resourcesUI; |
| protected TreeColumn resourcesUIc1; |
| protected TreeColumn resourcesUIc2; |
| public IResource pickedResource; |
| protected 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; |
| |
| resourcesUIc1 = new TreeColumn(resourcesUI, SWT.LEFT); |
| resourcesUIc2 = new TreeColumn(resourcesUI, SWT.LEFT); |
| |
| setupResourcesByLocation(); |
| return mainArea; |
| } |
| |
| protected void setupResourcesByLocation() { |
| resourcesUI.removeAll(); |
| resourcesUI.removeListener(SWT.Expand, this); // remove to prevent triggering while setting up |
| resourcesUI.removeListener(SWT.Selection, this); // remove to prevent triggering while setting up |
| resourcesUIc1.setWidth(500); |
| resourcesUIc2.setWidth(0); |
| resourcesUI.setHeaderVisible(false); |
| |
| 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); |
| } |
| |
| /* (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(); |
| IPath ipath = (null == pickedResource) ? null : pickedResource.getFullPath(); |
| result = (null == ipath || |
| (2 > ipath.segmentCount())) // project name alone cant be given to getFile |
| ? null |
| : new IFile[] {TAEConfiguratorPlugin.getWorkspace().getRoot().getFile(ipath)}; |
| } |
| } |
| |
| /* (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()]); |
| } |
| } |
| |
| } |