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/*******************************************************************************
* Copyright (c) 2006, 2013 Tom Schindl and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Tom Schindl - initial API and implementation
* Hendrik Still <hendrik.still@gammas.de> - bug 417676
*******************************************************************************/
package org.eclipse.jface.snippets.viewers;
import java.util.ArrayList;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.ColumnViewerEditor;
import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent;
import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy;
import org.eclipse.jface.viewers.FocusCellOwnerDrawHighlighter;
import org.eclipse.jface.viewers.ICellModifier;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.TextCellEditor;
import org.eclipse.jface.viewers.TreePath;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.TreeViewerEditor;
import org.eclipse.jface.viewers.TreeViewerFocusCellManager;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Item;
import org.eclipse.swt.widgets.Shell;
/**
* Demonstrates how to use keyboard-editing support in a TreeViewer with no column
*
* @author Tom Schindl <tom.schindl@bestsolution.at>
*
*/
public class Snippet043NoColumnTreeViewerKeyboardEditing {
public Snippet043NoColumnTreeViewerKeyboardEditing(final Shell shell) {
Button b = new Button(shell, SWT.PUSH);
b.setText("BBB");
final TreeViewer<MyModel,MyModel> v = new TreeViewer<MyModel,MyModel>(shell, SWT.BORDER
| SWT.FULL_SELECTION);
b.addSelectionListener(new SelectionListener() {
public void widgetDefaultSelected(SelectionEvent e) {
}
public void widgetSelected(SelectionEvent e) {
MyModel root = v.getInput();
TreePath path = new TreePath(new Object[] { root,
root.child.get(1),
root.child.get(1).child.get(0) });
v.editElement(path, 0);
}
});
v.setCellEditors(new CellEditor[] { new TextCellEditor(v.getTree()) });
v.setColumnProperties(new String[] { "col1" });
v.setCellModifier(new ICellModifier() {
public boolean canModify(Object element, String property) {
return true;
}
public Object getValue(Object element, String property) {
return ((MyModel) element).counter + "";
}
public void modify(Object element, String property, Object value) {
MyModel myModel = (MyModel)((Item) element).getData();
myModel.counter = Integer.parseInt(value.toString());
v.update(myModel, null);
}
});
TreeViewerFocusCellManager focusCellManager = new TreeViewerFocusCellManager(
v, new FocusCellOwnerDrawHighlighter(v));
ColumnViewerEditorActivationStrategy actSupport = new ColumnViewerEditorActivationStrategy(
v) {
protected boolean isEditorActivationEvent(
ColumnViewerEditorActivationEvent event) {
return event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL
|| event.eventType == ColumnViewerEditorActivationEvent.MOUSE_DOUBLE_CLICK_SELECTION
|| (event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED && event.keyCode == SWT.CR)
|| event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
}
};
TreeViewerEditor.create(v, focusCellManager, actSupport,
ColumnViewerEditor.TABBING_HORIZONTAL
| ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
| ColumnViewerEditor.TABBING_VERTICAL
| ColumnViewerEditor.KEYBOARD_ACTIVATION);
v.setContentProvider(new MyContentProvider());
v.setInput(createModel());
}
private MyModel createModel() {
MyModel root = new MyModel(0, null);
root.counter = 0;
MyModel tmp;
MyModel subItem;
for (int i = 1; i < 10; i++) {
tmp = new MyModel(i, root);
root.child.add(tmp);
for (int j = 1; j < i; j++) {
subItem = new MyModel(j, tmp);
subItem.child.add(new MyModel(j * 100, subItem));
tmp.child.add(subItem);
}
}
return root;
}
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
new Snippet043NoColumnTreeViewerKeyboardEditing(shell);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
private class MyContentProvider implements ITreeContentProvider<MyModel,MyModel> {
public MyModel[] getElements(MyModel inputElement) {
MyModel[] myModels = new MyModel[inputElement.child.size()];
return inputElement.child.toArray(myModels);
}
public void dispose() {
}
public void inputChanged(Viewer<? extends MyModel> viewer, MyModel oldInput, MyModel newInput) {
}
public MyModel[] getChildren(MyModel parentElement) {
return getElements(parentElement);
}
public MyModel getParent(MyModel element) {
if (element == null) {
return null;
}
return element.parent;
}
public boolean hasChildren(MyModel element) {
return element.child.size() > 0;
}
}
public class MyModel {
public MyModel parent;
public ArrayList<MyModel> child = new ArrayList<MyModel>();
public int counter;
public MyModel(int counter, MyModel parent) {
this.parent = parent;
this.counter = counter;
}
public String toString() {
String rv = "Item ";
if (parent != null) {
rv = parent.toString() + ".";
}
rv += counter;
return rv;
}
}
}
|
