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annotate dwtsnippets/gc/Snippet66.d @ 50:6b88d308c210

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Ports of several gc Snippets: 10,66,207,215 215 has a crash bug currently.
author Bill Baxter <bill@billbaxter.com>
date Mon, 07 Apr 2008 01:21:04 +0900
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2004 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Bill Baxter <bill@billbaxter.com>
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12 *******************************************************************************/
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13 module dwtsnippets.gc.Snippet66;
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14
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15 /*
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16 * GC example snippet: implement a simple scribble program
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17 *
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18 * For a list of all SWT example snippets see
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19 * http://www.eclipse.org/swt/snippets/
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20 */
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21 import dwt.DWT;
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22 import dwt.graphics.GC;
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23 import dwt.widgets.Display;
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24 import dwt.widgets.Shell;
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25 import dwt.widgets.Listener;
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26 import dwt.widgets.Event;
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27
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28 void main () {
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29 Display display = new Display ();
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30 final Shell shell = new Shell (display);
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31 Listener listener = new class() Listener {
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32 int lastX = 0, lastY = 0;
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33 public void handleEvent (Event event) {
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34 switch (event.type) {
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35 case DWT.MouseMove:
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36 if ((event.stateMask & DWT.BUTTON1) == 0) break;
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37 GC gc = new GC (shell);
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38 gc.drawLine (lastX, lastY, event.x, event.y);
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39 gc.dispose ();
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40 //FALL THROUGH
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41 case DWT.MouseDown:
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42 lastX = event.x;
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43 lastY = event.y;
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44 break;
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45 }
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46 }
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47 };
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48 shell.addListener (DWT.MouseDown, listener);
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49 shell.addListener (DWT.MouseMove, listener);
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50 shell.open ();
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51 while (!shell.isDisposed ()) {
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52 if (!display.readAndDispatch ()) display.sleep ();
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53 }
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54 display.dispose ();
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55 }
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56