Mercurial > projects > dwt-samples
view jface/snippets/Snippet043NoColumnTreeViewerKeyboardEditing.d @ 137:96a2d0b35360
jface snippets 014, 026, 043, 047
author | yidabu <yidabu@gmail.com> |
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date | Wed, 06 Aug 2008 10:03:06 +0800 |
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children | 2b4e94cafb85 |
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/******************************************************************************* * Copyright (c) 2006 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 * Port to the D programming language: * yidabu at gmail dot com ( D China http://www.d-programming-language-china.org/ ) *******************************************************************************/ module dwtx.jface.snippets.Snippet043NoColumnTreeViewerKeyboardEditing; import dwtx.jface.viewers.CellEditor; import dwtx.jface.viewers.ColumnViewerEditor; import dwtx.jface.viewers.ColumnViewer; import dwtx.jface.viewers.ColumnViewerEditorActivationStrategy; import dwtx.jface.viewers.ColumnViewerEditorActivationEvent; import dwtx.jface.viewers.FocusCellOwnerDrawHighlighter; import dwtx.jface.viewers.ICellModifier; import dwtx.jface.viewers.ITreeContentProvider; import dwtx.jface.viewers.TextCellEditor; import dwtx.jface.viewers.TreePath; import dwtx.jface.viewers.TreeViewerFocusCellManager; import dwtx.jface.viewers.TreeViewerEditor; import dwtx.jface.viewers.TreeViewer; import dwtx.jface.viewers.Viewer; import dwt.DWT; import dwt.events.SelectionEvent; import dwt.events.SelectionListener; import dwt.layout.FillLayout; import dwt.widgets.Button; import dwt.widgets.Display; import dwt.widgets.Item; import dwt.widgets.Shell; import dwt.dwthelper.utils; import tango.util.Convert; import tango.util.container.LinkedList; 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(); } /** * Demonstrates how to use keyboard-editing support in a TreeViewer with no column * * @author Tom Schindl <tom.schindl@bestsolution.at> * */ public class Snippet043NoColumnTreeViewerKeyboardEditing { alias LinkedList!(MyModel) ArrayList; public this(Shell shell) { Button b = new Button(shell, DWT.PUSH); b.setText("BBB"); final TreeViewer v = new TreeViewer(shell, DWT.BORDER | DWT.FULL_SELECTION); b.addSelectionListener(new class(v) SelectionListener { TreeViewer v; this(TreeViewer v_) { this.v = v_; } public void widgetDefaultSelected(SelectionEvent e) { } public void widgetSelected(SelectionEvent e) { MyModel root = cast(MyModel) v.getInput(); TreePath path = new TreePath([ root, root.child.get(1), (cast(MyModel) root.child.get(1)).child.get(0)] ); v.editElement(path, 0); } }); v.setCellEditors([ new TextCellEditor(v.getTree()) ]); v.setColumnProperties(["col1"]); v.setCellModifier(new class(v) ICellModifier { TreeViewer v; this(TreeViewer v_) { this.v = v_; } public bool canModify(Object element, String property) { return true; } public Object getValue(Object element, String property) { return stringcast( to!(String)((cast(MyModel) element).counter) ~ "" ); } public void modify(Object element, String property, Object value) { element = (cast(Item) element).getData(); (cast(MyModel) element).counter = Integer.parseInt(value.toString()); v.update(element, null); } }); TreeViewerFocusCellManager focusCellManager = new TreeViewerFocusCellManager( v, new FocusCellOwnerDrawHighlighter(v)); ColumnViewerEditorActivationStrategy actSupport = new class(v) ColumnViewerEditorActivationStrategy { this(ColumnViewer v) { super(v); } protected bool isEditorActivationEvent( ColumnViewerEditorActivationEvent event) { return event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL || event.eventType == ColumnViewerEditorActivationEvent.MOUSE_DOUBLE_CLICK_SELECTION || (event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED && event.keyCode == DWT.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; } private class MyContentProvider : ITreeContentProvider { public Object[] getElements(Object inputElement) { return (cast(MyModel) inputElement).child.toArray(); } public void dispose() { } public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } public Object[] getChildren(Object parentElement) { return getElements(parentElement); } public Object getParent(Object element) { if (element is null) { return null; } return (cast(MyModel) element).parent; } public bool hasChildren(Object element) { return (cast(MyModel) element).child.size() > 0; } } public class MyModel { public MyModel parent; public ArrayList child; public int counter; public this(int counter_, MyModel parent_) { this.parent = parent_; this.counter = counter_; child = new ArrayList(); } public String toString() { String rv = "Item "; if (parent !is null) { rv = parent.toString() ~ "."; } rv ~= to!(String)(counter); return rv; } } }