/* ******************************************************************************
* Copyright (c) 2006-2012 XMind Ltd. and others.
*
* This file is a part of XMind 3. XMind releases 3 and
* above are dual-licensed under the Eclipse Public License (EPL),
* which is available at http://www.eclipse.org/legal/epl-v10.html
* and the GNU Lesser General Public License (LGPL),
* which is available at http://www.gnu.org/licenses/lgpl.html
* See http://www.xmind.net/license.html for details.
*
* Contributors:
* XMind Ltd. - initial API and implementation
*******************************************************************************/
package org.xmind.ui.internal.dialogs;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.dialogs.FilteredTree;
import org.eclipse.ui.dialogs.PatternFilter;
import org.xmind.core.ISheet;
import org.xmind.core.ITopic;
import org.xmind.core.IWorkbook;
import org.xmind.core.util.HyperlinkUtils;
import org.xmind.ui.dialogs.HyperlinkPage;
/**
* @author Frank Shaka
*/
public class TopicHyperlinkPage extends HyperlinkPage {
private class TopicPageContentProvider implements ITreeContentProvider {
public Object[] getElements(Object inputElement) {
if (inputElement instanceof IWorkbook) {
List<ISheet> sheets = ((IWorkbook) inputElement).getSheets();
List<ITopic> rootTopics = new ArrayList<ITopic>(sheets.size());
for (ISheet sheet : sheets) {
rootTopics.add(sheet.getRootTopic());
}
return rootTopics.toArray();
}
return new Object[0];
}
public boolean hasChildren(Object element) {
if (element instanceof ITopic) {
return !((ITopic) element).getAllChildren().isEmpty();
}
return false;
}
public Object[] getChildren(Object parentElement) {
if (parentElement instanceof ITopic) {
return ((ITopic) parentElement).getAllChildren().toArray();
}
return new Object[0];
}
public Object getParent(Object element) {
if (element instanceof ITopic) {
ITopic topic = (ITopic) element;
if (topic.isRoot())
return topic.getOwnedWorkbook();
return topic.getParent();
}
return null;
}
public void dispose() {
}
public void inputChanged(Viewer viewer, Object oldInput,
Object newInput) {
}
}
private class TopicPageLabelProvider extends LabelProvider {
public String getText(Object element) {
if (element instanceof ITopic) {
ITopic topic = (ITopic) element;
if (topic.isRoot()) {
return topic.getTitleText() + " (" //$NON-NLS-1$
+ topic.getOwnedSheet().getTitleText() + ")"; //$NON-NLS-1$
}
String titleText = topic.getTitleText();
return titleText.replaceAll("\\r\\n|\\n|\\r", " "); //$NON-NLS-1$ //$NON-NLS-2$
}
return super.getText(element);
}
/*
* (non-Javadoc)
* @see
* org.xmind.ui.viewers.ImageCachedLabelProvider#createImage(java.lang
* .Object)
*/
// protected Image createImage(Object element) {
// ImageDescriptor icon = MindMapUI.getImages().getElementIcon(element,
// true);
// if (icon == null)
// return null;
// return icon.createImage(false);
// }
}
private class TopicSelectionListener implements ISelectionChangedListener {
public void selectionChanged(SelectionChangedEvent event) {
ISelection selection = event.getSelection();
if (selection instanceof IStructuredSelection) {
IStructuredSelection ss = (IStructuredSelection) selection;
Object element = ss.getFirstElement();
if (element instanceof ITopic) {
isModifyValue = true;
setValue(HyperlinkUtils.toInternalURL((ITopic) element));
isModifyValue = false;
setCanFinish(true);
}
}
}
}
public Composite composite;
public IWorkbook workbook;
public boolean isModifyValue = false;
public String str;
private TreeViewer topicViewer;
public TopicHyperlinkPage() {
}
public void init(IEditorPart editor, IStructuredSelection selection) {
this.workbook = (IWorkbook) editor.getAdapter(IWorkbook.class);
}
public void createControl(Composite parent) {
composite = new Composite(parent, SWT.NONE);
composite.setLayout(new GridLayout(1, false));
createLabel(composite);
createTopicViewer(composite);
}
/**
* @param parent
*/
private void createLabel(Composite parent) {
Label label = new Label(parent, SWT.WRAP);
label.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
label.setText(DialogMessages.TopicHyperlinkPage_label);
}
/**
* @param parent
*/
private void createTopicViewer(Composite parent) {
// topicViewer = new TreeViewer(parent, SWT.SINGLE | SWT.BORDER);
PatternFilter filter = new PatternFilter();
FilteredTree tree = new FilteredTree(parent,
SWT.SINGLE | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL, filter,
true);
topicViewer = tree.getViewer();
topicViewer.getControl()
.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
topicViewer.setAutoExpandLevel(2);
topicViewer.setContentProvider(new TopicPageContentProvider());
topicViewer.setLabelProvider(new TopicPageLabelProvider());
if (workbook != null)
topicViewer.setInput(workbook);
topicViewer.addSelectionChangedListener(new TopicSelectionListener());
}
public void setValue(String value) {
super.setValue(value);
if (!isModifyValue) {
if (topicViewer != null && topicViewer.getControl() != null
&& !topicViewer.getControl().isDisposed()) {
Object element = getElement(value);
if (element != null) {
topicViewer.setSelection(new StructuredSelection(element),
true);
} else {
topicViewer.setSelection(StructuredSelection.EMPTY);
}
}
}
}
/**
* @param value
*/
private Object getElement(String value) {
if (value == null)
return null;
if (workbook == null)
return null;
return HyperlinkUtils.findElement(value, workbook);
}
public void dispose() {
}
public Control getControl() {
return composite;
}
public void setFocus() {
if (topicViewer != null) {
Control control = topicViewer.getControl();
if (control != null && !control.isDisposed()) {
control.setFocus();
}
}
}
}
