Mercurial > projects > dwt2
diff org.eclipse.jface.snippets/EclipseJfaceSnippets/org/eclipse/jface/snippets/viewers/Snippet005TreeCustomMenu.d @ 31:5d87d4191adf
Added JFace Snippets sources
author | Frank Benoit <benoit@tionex.de> |
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date | Mon, 23 Mar 2009 11:16:06 +0100 |
parents | |
children | c4b36186a9bc |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/org.eclipse.jface.snippets/EclipseJfaceSnippets/org/eclipse/jface/snippets/viewers/Snippet005TreeCustomMenu.d Mon Mar 23 11:16:06 2009 +0100 @@ -0,0 +1,183 @@ +/******************************************************************************* + * 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: + * wbaxter at gmail dot com + *******************************************************************************/ + +module snippets.viewers.Snippet005TreeCustomMenu; + +import dwtx.jface.action.Action; +import dwtx.jface.action.IMenuListener; +import dwtx.jface.action.IMenuManager; +import dwtx.jface.action.MenuManager; +import dwtx.jface.viewers.IStructuredSelection; +import dwtx.jface.viewers.ITreeContentProvider; +import dwtx.jface.viewers.LabelProvider; +import dwtx.jface.viewers.TreeViewer; +import dwtx.jface.viewers.Viewer; +import dwt.layout.FillLayout; +import dwt.widgets.Display; +import dwt.widgets.Shell; +import dwt.DWT; + +import dwt.dwthelper.utils; + +import tango.util.Convert; +import tango.io.Stdout; + +/** + * Customized context menu based on TreeItem-Selection + * + * @author Tom Schindl <tom.schindl@bestsolution.at> + * + */ +public class Snippet005TreeCustomMenu { + private class MyContentProvider : ITreeContentProvider { + + public Object[] getElements(Object inputElement) { + return (cast(MyModel) inputElement).child; + } + + /* (non-Javadoc) + * @see org.eclipse.jface.viewers.IContentProvider#dispose() + */ + public void dispose() { + + } + + /* (non-Javadoc) + * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object) + */ + public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { + + } + + /* (non-Javadoc) + * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object) + */ + public Object[] getChildren(Object parentElement) { + return getElements(parentElement); + } + + /* (non-Javadoc) + * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object) + */ + public Object getParent(Object element) { + if (element is null) { + return null; + } + + return (cast(MyModel) element).parent; + } + + /* (non-Javadoc) + * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object) + */ + public bool hasChildren(Object element) { + return (cast(MyModel) element).child.length > 0; + } + + } + + public class MyModel { + public MyModel parent; + + public MyModel[] child; + + public int counter; + + public this(int counter, MyModel parent) { + this.parent = parent; + this.counter = counter; + } + + public String toString() { + String rv = "Item "; + if (parent !is null) { + rv = parent.toString() ~ "."; + } + + rv ~= to!(char[])(counter); + + return rv; + } + } + + public this(Shell shell) { + final TreeViewer v = new TreeViewer(shell); + v.setLabelProvider(new LabelProvider()); + v.setContentProvider(new MyContentProvider()); + v.setInput(createModel()); + + final Action a = new class Action {}; + final MenuManager mgr = new MenuManager(); + mgr.setRemoveAllWhenShown(true); + + class MyMenuListener : IMenuListener { + TreeViewer v; + Action a; + MenuManager mgr; + + this(TreeViewer v_, Action a_, MenuManager mgr_) { + this.v = v_; this.a = a_; this.mgr = mgr_; + } + + /* (non-Javadoc) + * @see org.eclipse.jface.action.IMenuListener#menuAboutToShow(org.eclipse.jface.action.IMenuManager) + */ + public void menuAboutToShow(IMenuManager manager) { + IStructuredSelection selection = cast(IStructuredSelection) v + .getSelection(); + if (!selection.isEmpty()) { + a.setText("Action for " + ~ (cast(MyModel) selection.getFirstElement()) + .toString()); + mgr.add(a); + } + } + } + + mgr.addMenuListener(new MyMenuListener(v,a,mgr)); + v.getControl().setMenu(mgr.createContextMenu(v.getControl())); + } + + private MyModel createModel() { + + MyModel root = new MyModel(0, null); + root.counter = 0; + + MyModel tmp; + for (int i = 1; i < 10; i++) { + tmp = new MyModel(i, root); + root.child ~= tmp; + for (int j = 1; j < i; j++) { + tmp.child ~= new MyModel(j, tmp); + } + } + + return root; + } + +} + +void main() { + Display display = new Display(); + Shell shell = new Shell(display); + shell.setLayout(new FillLayout()); + new Snippet005TreeCustomMenu(shell); + shell.open(); + + while (!shell.isDisposed()) { + if (!display.readAndDispatch()) + display.sleep(); + } + + display.dispose(); +}