| /******************************************************************************* |
| * Copyright (c) 2006, 2015 Tom Schindl and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Tom Schindl - initial API and implementation |
| * Jeanderson Candido <http://jeandersonbc.github.io> - Bug 414565 |
| * Lars Vogel <Lars.Vogel@vogella.com> - Bug 475361 |
| *******************************************************************************/ |
| |
| package org.eclipse.jface.snippets.viewers; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.jface.viewers.CellEditor; |
| import org.eclipse.jface.viewers.ColumnLabelProvider; |
| import org.eclipse.jface.viewers.ColumnViewer; |
| import org.eclipse.jface.viewers.ColumnViewerEditor; |
| import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy; |
| import org.eclipse.jface.viewers.EditingSupport; |
| import org.eclipse.jface.viewers.FocusCellOwnerDrawHighlighter; |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.TextCellEditor; |
| import org.eclipse.jface.viewers.TreeViewer; |
| import org.eclipse.jface.viewers.TreeViewerColumn; |
| import org.eclipse.jface.viewers.TreeViewerEditor; |
| import org.eclipse.jface.viewers.TreeViewerFocusCellManager; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerCell; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.graphics.Color; |
| import org.eclipse.swt.layout.FillLayout; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Shell; |
| |
| public class Snippet056BooleanCellEditor { |
| |
| public Snippet056BooleanCellEditor(final Shell shell) { |
| |
| final TreeViewer v = new TreeViewer(shell, SWT.BORDER |
| | SWT.FULL_SELECTION); |
| v.getTree().setLinesVisible(true); |
| v.getTree().setHeaderVisible(true); |
| |
| FocusCellOwnerDrawHighlighter h = new FocusCellOwnerDrawHighlighter(v) { |
| |
| @Override |
| protected Color getSelectedCellBackgroundColorNoFocus( |
| ViewerCell cell) { |
| return shell.getDisplay().getSystemColor( |
| SWT.COLOR_WIDGET_BACKGROUND); |
| } |
| |
| @Override |
| protected Color getSelectedCellForegroundColorNoFocus( |
| ViewerCell cell) { |
| return shell.getDisplay().getSystemColor( |
| SWT.COLOR_WIDGET_FOREGROUND); |
| } |
| }; |
| |
| TreeViewerFocusCellManager focusCellManager = new TreeViewerFocusCellManager( |
| v, h); |
| ColumnViewerEditorActivationStrategy actSupport = new ColumnViewerEditorActivationStrategy( |
| v); |
| |
| int feature = ColumnViewerEditor.TABBING_HORIZONTAL |
| | ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR |
| | ColumnViewerEditor.TABBING_VERTICAL |
| | ColumnViewerEditor.KEYBOARD_ACTIVATION; |
| |
| TreeViewerEditor.create(v, focusCellManager, actSupport, feature); |
| |
| final TextCellEditor textCellEditor = new TextCellEditor(v.getTree()); |
| final BooleanCellEditor booleanCellEditor = new BooleanCellEditor( |
| v.getTree()); |
| |
| TreeViewerColumn column = createColumnFor(v, "Column 1"); |
| column.setLabelProvider(new MyColumnLabelProvider("Column 1")); |
| column.setEditingSupport(new MyEditingSupport(v, v, textCellEditor)); |
| |
| column = createColumnFor(v, "Column 2"); |
| column.setLabelProvider(new ColumnLabelProvider() { |
| |
| @Override |
| public String getText(Object element) { |
| return ((MyModel) element).flag + ""; |
| } |
| |
| }); |
| column.setEditingSupport(new EditingSupport(v) { |
| @Override |
| protected boolean canEdit(Object element) { |
| return true; |
| } |
| |
| @Override |
| protected CellEditor getCellEditor(Object element) { |
| return booleanCellEditor; |
| } |
| |
| @Override |
| protected Object getValue(Object element) { |
| return Boolean.valueOf(((MyModel) element).flag); |
| } |
| |
| @Override |
| protected void setValue(Object element, Object value) { |
| ((MyModel) element).flag = ((Boolean) value).booleanValue(); |
| v.update(element, null); |
| } |
| }); |
| column = createColumnFor(v, "Column 3"); |
| column.setLabelProvider(new MyColumnLabelProvider("Column 3")); |
| column.setEditingSupport(new MyEditingSupport(v, v, textCellEditor)); |
| |
| v.setContentProvider(new MyContentProvider()); |
| v.setInput(createModel()); |
| } |
| |
| private TreeViewerColumn createColumnFor(final TreeViewer viewer, |
| String label) { |
| TreeViewerColumn column = new TreeViewerColumn(viewer, SWT.NONE); |
| column.getColumn().setWidth(200); |
| column.getColumn().setMoveable(true); |
| column.getColumn().setText(label); |
| return column; |
| } |
| |
| 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 Snippet056BooleanCellEditor(shell); |
| shell.open(); |
| |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) |
| display.sleep(); |
| } |
| |
| display.dispose(); |
| } |
| |
| private static final class MyEditingSupport extends EditingSupport { |
| private final TreeViewer v; |
| private final TextCellEditor textCellEditor; |
| |
| private MyEditingSupport(ColumnViewer viewer, TreeViewer v, |
| TextCellEditor textCellEditor) { |
| super(viewer); |
| this.v = v; |
| this.textCellEditor = textCellEditor; |
| } |
| |
| @Override |
| protected boolean canEdit(Object element) { |
| return true; |
| } |
| |
| @Override |
| protected CellEditor getCellEditor(Object element) { |
| return textCellEditor; |
| } |
| |
| @Override |
| protected Object getValue(Object element) { |
| return ((MyModel) element).counter + ""; |
| } |
| |
| @Override |
| protected void setValue(Object element, Object value) { |
| ((MyModel) element).counter = Integer.parseInt(value.toString()); |
| v.update(element, null); |
| } |
| } |
| |
| private static final class MyColumnLabelProvider extends ColumnLabelProvider { |
| private String prefix; |
| |
| public MyColumnLabelProvider(String prefix) { |
| this.prefix = prefix; |
| } |
| |
| @Override |
| public String getText(Object element) { |
| return this.prefix + " => " + element; |
| } |
| } |
| |
| private static class MyContentProvider implements ITreeContentProvider { |
| |
| @Override |
| public Object[] getElements(Object inputElement) { |
| return ((MyModel) inputElement).child.toArray(); |
| } |
| |
| @Override |
| public void dispose() { |
| } |
| |
| @Override |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| } |
| |
| @Override |
| public Object[] getChildren(Object parentElement) { |
| return getElements(parentElement); |
| } |
| |
| @Override |
| public Object getParent(Object element) { |
| if (element == null) { |
| return null; |
| } |
| return ((MyModel) element).parent; |
| } |
| |
| @Override |
| public boolean hasChildren(Object element) { |
| return ((MyModel) element).child.size() > 0; |
| } |
| |
| } |
| |
| public static class MyModel { |
| |
| public MyModel parent; |
| public List<MyModel> child = new ArrayList<>(); |
| public int counter; |
| public boolean flag; |
| |
| public MyModel(int counter, MyModel parent) { |
| this.parent = parent; |
| this.counter = counter; |
| this.flag = counter % 2 == 0; |
| } |
| |
| @Override |
| public String toString() { |
| String rv = "Item "; |
| if (parent != null) { |
| rv = parent + "."; |
| } |
| |
| rv += counter; |
| |
| return rv; |
| } |
| } |
| |
| } |