projects/dwt-samples: snippets/treeeditor/Snippet111.d annotate

author	Bill Baxter <bill@billbaxter.com>
date	Sat, 17 May 2008 13:06:43 +0900
parents
children	fa286c85e7b8

rev	line source
84 398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	1 /*******************************************************************************
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	2 * Copyright (c) 2000, 2004 IBM Corporation and others.
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	3 * All rights reserved. This program and the accompanying materials
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	4 * are made available under the terms of the Eclipse Public License v1.0
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	5 * which accompanies this distribution, and is available at
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	6 * http://www.eclipse.org/legal/epl-v10.html
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	7 *
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	8 * Contributors:
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	9 * IBM Corporation - initial API and implementation
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	10 * D Port:
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	11 * Bill Baxter <wbaxter@gmail.com>
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	12 *******************************************************************************/
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	13 module dwtsnippets.treeeditor.Snippet111;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	14
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	15 /*
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	16 * TreeEditor example snippet: edit the text of a tree item (in place, fancy)
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	17 *
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	18 * For a list of all SWT example snippets see
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	19 * http://www.eclipse.org/swt/snippets/
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	20 */
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	21 import dwt.DWT;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	22 import dwt.graphics.Color;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	23 import dwt.graphics.Rectangle;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	24 import dwt.graphics.GC;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	25 import dwt.widgets.Display;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	26 import dwt.widgets.Shell;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	27 import dwt.widgets.Widget;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	28 import dwt.widgets.Composite;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	29 import dwt.widgets.Tree;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	30 import dwt.widgets.TreeItem;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	31 import dwt.widgets.Text;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	32 import dwt.widgets.Listener;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	33 import dwt.widgets.Event;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	34 import dwt.layout.FillLayout;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	35 import dwt.custom.TreeEditor;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	36
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	37 import dwt.dwthelper.utils : String, substring, Math;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	38 import std.stdio;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	39
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	40 import tango.util.Convert;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	41
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	42 void main () {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	43 final Display display = new Display ();
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	44 final Color black = display.getSystemColor (DWT.COLOR_BLACK);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	45 Shell shell = new Shell (display);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	46 shell.setLayout (new FillLayout ());
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	47 final Tree tree = new Tree (shell, DWT.BORDER);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	48 for (int i=0; i<16; i++) {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	49 TreeItem itemI = new TreeItem (tree, DWT.NONE);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	50 itemI.setText ("Item " ~ to!(char[])(i));
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	51 for (int j=0; j<16; j++) {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	52 TreeItem itemJ = new TreeItem (itemI, DWT.NONE);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	53 itemJ.setText ("Item " ~ to!(char[])(j) );
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	54 }
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	55 }
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	56 final TreeItem [] lastItem = new TreeItem [1];
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	57 final TreeEditor editor = new TreeEditor (tree);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	58 tree.addListener (DWT.Selection, new class Listener {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	59 public void handleEvent (Event event) {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	60 final TreeItem item = cast(TreeItem) event.item;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	61 if (item !is null && item is lastItem [0]) {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	62 bool showBorder = true;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	63 final Composite composite = new Composite (tree, DWT.NONE);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	64 if (showBorder) composite.setBackground (black);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	65 final Text text = new Text (composite, DWT.NONE);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	66 final int inset = showBorder ? 1 : 0;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	67 composite.addListener (DWT.Resize, new class Listener {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	68 public void handleEvent (Event e) {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	69 Rectangle rect = composite.getClientArea ();
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	70 text.setBounds (rect.x + inset, rect.y + inset, rect.width - inset * 2, rect.height - inset * 2);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	71 }
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	72 });
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	73 Listener textListener = new class Listener {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	74 public void handleEvent (Event e) {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	75 switch (e.type) {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	76 case DWT.FocusOut: {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	77 item.setText (text.getText ());
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	78 composite.dispose ();
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	79 }
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	80 break;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	81 case DWT.Verify: {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	82 String newText = text.getText ();
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	83 String leftText = newText.substring (0, e.start);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	84 String rightText = newText.substring (e.end, newText.length);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	85 GC gc = new GC (text);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	86 Point size = gc.textExtent (leftText ~ e.text ~ rightText);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	87 gc.dispose ();
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	88 size = text.computeSize (size.x, DWT.DEFAULT);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	89 editor.horizontalAlignment = DWT.LEFT;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	90 Rectangle itemRect = item.getBounds (), rect = tree.getClientArea ();
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	91 editor.minimumWidth = Math.max (size.x, itemRect.width) + inset * 2;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	92 int left = itemRect.x, right = rect.x + rect.width;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	93 editor.minimumWidth = Math.min (editor.minimumWidth, right - left);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	94 editor.minimumHeight = size.y + inset * 2;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	95 editor.layout ();
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	96 }
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	97 break;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	98 case DWT.Traverse: {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	99 switch (e.detail) {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	100 case DWT.TRAVERSE_RETURN:
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	101 item.setText (text.getText ());
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	102 //FALL THROUGH
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	103 case DWT.TRAVERSE_ESCAPE:
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	104 composite.dispose ();
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	105 e.doit = false;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	106 default:
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	107 //no-op
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	108 }
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	109 break;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	110 }
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	111 default:
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	112 // no-op
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	113 }
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	114 }
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	115 };
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	116 text.addListener (DWT.FocusOut, textListener);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	117 text.addListener (DWT.Traverse, textListener);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	118 text.addListener (DWT.Verify, textListener);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	119 editor.setEditor (composite, item);
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	120 text.setText (item.getText ());
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	121 text.selectAll ();
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	122 text.setFocus ();
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	123 }
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	124 lastItem [0] = item;
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	125 }
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	126 });
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	127 shell.pack ();
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	128 shell.open ();
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	129 while (!shell.isDisposed()) {
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	130 if (!display.readAndDispatch ()) display.sleep ();
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	131 }
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	132 display.dispose ();
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	133 }
398aa64a7243 Two new snippets -- don't quite work yet though. Bill Baxter <bill@billbaxter.com> parents: diff changeset	134

84

398aa64a7243 Two new snippets -- don't quite work yet though.