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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 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module snippets.shell.Snippet134;
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14
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15 /*
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16 * Shell example snippet: create a non-rectangular window
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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 * @since 3.0
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22 */
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23 import dwt.DWT;
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24 import dwt.graphics.Region;
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25 import dwt.graphics.Point;
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26 import dwt.graphics.Rectangle;
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27 import dwt.widgets.Display;
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28 import dwt.widgets.Shell;
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29 import dwt.widgets.Button;
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30 import dwt.widgets.Listener;
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31 import dwt.widgets.Event;
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32
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33 import dwt.dwthelper.utils;
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34
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35 version(JIVE){
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36 import jive.stacktrace;
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37 }
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38
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39 int[] circle(int r, int offsetX, int offsetY) {
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40 int[] polygon = new int[8 * r + 4];
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41 //x^2 + y^2 = r^2
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42 for (int i = 0; i < 2 * r + 1; i++) {
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43 int x = i - r;
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44 int y = cast(int)Math.sqrt( cast(float)(r*r - x*x));
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45 polygon[2*i] = offsetX + x;
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46 polygon[2*i+1] = offsetY + y;
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47 polygon[8*r - 2*i - 2] = offsetX + x;
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48 polygon[8*r - 2*i - 1] = offsetY - y;
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49 }
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50 return polygon;
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51 }
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52
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53 Display display;
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54 Shell shell;
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55
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56 void main(char[][] args) {
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57 display = new Display();
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58 //Shell must be created with style SWT.NO_TRIM
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59 shell = new Shell(display, DWT.NO_TRIM | DWT.ON_TOP);
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60 shell.setBackground(display.getSystemColor(DWT.COLOR_RED));
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61 //define a region that looks like a key hole
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62 Region region = new Region();
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63 region.add(circle(67, 67, 67));
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64 region.subtract(circle(20, 67, 50));
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65 region.subtract([67, 50, 55, 105, 79, 105]);
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66 //define the shape of the shell using setRegion
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67 shell.setRegion(region);
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68 Rectangle size = region.getBounds();
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69 shell.setSize(size.width, size.height);
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70 //add ability to move shell around
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71 Listener l = new class Listener {
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72 Point origin;
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73 public void handleEvent(Event e) {
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74 switch (e.type) {
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75 case DWT.MouseDown:
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76 origin = new Point(e.x, e.y);
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77 break;
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78 case DWT.MouseUp:
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79 origin = null;
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80 break;
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81 case DWT.MouseMove:
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82 if (origin !is null) {
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83 Point p = display.map(shell, null, e.x, e.y);
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84 shell.setLocation(p.x - origin.x, p.y - origin.y);
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85 }
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86 break;
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87 }
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88 }
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89 };
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90 shell.addListener(DWT.MouseDown, l);
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91 shell.addListener(DWT.MouseUp, l);
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92 shell.addListener(DWT.MouseMove, l);
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93 //add ability to close shell
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94 Button b = new Button(shell, DWT.PUSH);
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95 b.setBackground(shell.getBackground());
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96 b.setText("close");
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97 b.pack();
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98 b.setLocation(10, 68);
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99 b.addListener(DWT.Selection, new class Listener {
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100 public void handleEvent(Event e) {
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101 shell.close();
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102 }
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103 });
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104 shell.open();
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105 while (!shell.isDisposed()) {
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106 if (!display.readAndDispatch())
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107 display.sleep();
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108 }
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109 region.dispose();
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110 display.dispose();
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111 }
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