Mercurial > projects > dwt-samples
annotate snippets/composite/Snippet46.d @ 119:9a1be6ff19a2
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author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 20 Jul 2008 15:26:06 +0200 |
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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 * D Port: |
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11 * Thomas Demmer <t_demmer AT web DOT de> |
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12 *******************************************************************************/ |
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13 module composite.Snippet46; |
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14 |
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15 /* |
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16 * Composite example snippet: intercept mouse events (drag a button with the mouse) |
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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.Point; |
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23 import dwt.graphics.Rectangle; |
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24 import dwt.widgets.Button; |
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25 import dwt.widgets.Composite; |
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26 import dwt.widgets.Display; |
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27 import dwt.widgets.Event; |
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28 import dwt.widgets.Listener; |
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29 import dwt.widgets.Shell; |
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30 import dwt.layout.FillLayout; |
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31 |
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32 import dwt.dwthelper.utils; |
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33 |
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34 void main (String [] args) { |
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35 Display display = new Display (); |
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36 Shell shell = new Shell (display); |
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37 Composite composite = new Composite (shell, DWT.NONE); |
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38 composite.setEnabled (false); |
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39 composite.setLayout (new FillLayout ()); |
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40 Button button = new Button (composite, DWT.PUSH); |
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41 button.setText ("Button"); |
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42 composite.pack (); |
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43 composite.setLocation (10, 10); |
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44 Point [] offset = new Point [1]; |
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45 Listener listener = new class() Listener{ |
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46 public void handleEvent (Event event) { |
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47 switch (event.type) { |
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48 case DWT.MouseDown: |
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49 Rectangle rect = composite.getBounds (); |
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50 if (rect.contains (event.x, event.y)) { |
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51 Point pt1 = composite.toDisplay (0, 0); |
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52 Point pt2 = shell.toDisplay (event.x, event.y); |
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53 offset [0] = new Point (pt2.x - pt1.x, pt2.y - pt1.y); |
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54 } |
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55 break; |
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56 case DWT.MouseMove: |
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57 if (offset [0] !is null) { |
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58 Point pt = offset [0]; |
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59 composite.setLocation (event.x - pt.x, event.y - pt.y); |
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60 } |
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61 break; |
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62 case DWT.MouseUp: |
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63 offset [0] = null; |
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64 break; |
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65 } |
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66 } |
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67 }; |
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68 shell.addListener (DWT.MouseDown, listener); |
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69 shell.addListener (DWT.MouseUp, listener); |
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70 shell.addListener (DWT.MouseMove, listener); |
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71 shell.setSize (300, 300); |
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72 shell.open (); |
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73 while (!shell.isDisposed ()) { |
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74 if (!display.readAndDispatch ()) display.sleep (); |
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75 } |
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76 display.dispose (); |
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77 } |
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78 |