Mercurial > projects > dwt2
annotate org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet130.d @ 125:c43718956f21 default tip
Updated the snippets status.
author | Jacob Carlborg <doob@me.com> |
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date | Thu, 11 Aug 2011 19:55:14 +0200 |
parents | 536e43f63c81 |
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rev | line source |
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28 | 1 /******************************************************************************* |
2 * Copyright (c) 2000, 2004 IBM Corporation and others. | |
3 * All rights reserved. This program and the accompanying materials | |
4 * are made available under the terms of the Eclipse Public License v1.0 | |
5 * which accompanies this distribution, and is available at | |
6 * http://www.eclipse.org/legal/epl-v10.html | |
7 * | |
8 * Contributors: | |
9 * IBM Corporation - initial API and implementation | |
10 * D Port: | |
11 * Thomas Demmer <t_demmer AT web DOT de> | |
12 *******************************************************************************/ | |
13 module org.eclipse.swt.snippets.Snippet130; | |
14 /* | |
15 * BusyIndicator example snippet: display busy cursor during long running task | |
16 * | |
17 * For a list of all SWT example snippets see | |
18 * http://www.eclipse.org/swt/snippets/ | |
19 */ | |
20 import org.eclipse.swt.SWT; | |
21 import org.eclipse.swt.events.SelectionAdapter; | |
22 import org.eclipse.swt.events.SelectionEvent; | |
23 import org.eclipse.swt.layout.GridLayout; | |
24 import org.eclipse.swt.layout.GridData; | |
25 import org.eclipse.swt.widgets.Shell; | |
26 import org.eclipse.swt.widgets.Button; | |
27 import org.eclipse.swt.widgets.Display; | |
28 import org.eclipse.swt.widgets.Shell; | |
29 import org.eclipse.swt.widgets.Text; | |
30 | |
31 | |
32 import org.eclipse.swt.custom.BusyIndicator; | |
33 | |
34 import java.lang.all; | |
44
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35 import java.lang.Thread; |
28 | 36 |
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37 void main() { |
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38 Display display = new Display(); |
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39 Shell shell = new Shell(display); |
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40 shell.setLayout(new GridLayout()); |
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41 Text text = new Text(shell, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL); |
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42 text.setLayoutData(new GridData(GridData.FILL_BOTH)); |
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43 int[] nextId = new int[1]; |
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44 Button b = new Button(shell, SWT.PUSH); |
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45 b.setText("invoke long running job"); |
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46 |
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47 b.addSelectionListener(new class SelectionAdapter { |
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48 public void widgetSelected(SelectionEvent e) { |
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49 Runnable longJob = new class Runnable { |
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50 bool done = false; |
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51 int id; |
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52 public void run() { |
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53 Thread thread = new Thread({ |
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54 id = nextId[0]++; |
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55 display.syncExec(new class Runnable { |
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56 public void run() { |
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57 if (text.isDisposed()) return; |
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58 text.append(Format("\nStart long running task {}", id)); |
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59 } |
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60 }); // display.syncExec |
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61 /* |
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62 * This crashes when more than 1 thread gets created. THD |
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63 for (int i = 0; i < 100000; i++) { |
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64 if (display.isDisposed()) return; |
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65 getDwtLogger().info(__FILE__, __LINE__, "do task that takes a long time in a separate thread {}", id); |
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66 } |
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67 */ |
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68 // This runs fine |
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69 for (int i = 0; i < 6; i++) { |
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70 if (display.isDisposed()) return; |
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71 getDwtLogger().info( __FILE__, __LINE__, "do task that takes a long time in a separate thread {} {}/6", id, i); |
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72 Thread.sleep(500); |
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73 } |
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74 |
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75 if (display.isDisposed()) return; |
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76 display.syncExec(new class Runnable { |
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77 public void run() { |
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78 if (text.isDisposed()) return; |
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79 text.append(Format("\nCompleted long running task {}", id)); |
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80 } |
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81 }); // display.syncExec |
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82 done = true; |
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83 display.wake(); |
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84 }); // thread = ... |
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85 thread.start(); |
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86 |
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87 while (!done && !shell.isDisposed()) { |
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88 if (!display.readAndDispatch()) |
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89 display.sleep(); |
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90 } |
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91 } |
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92 }; // Runnable longJob = ... |
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93 BusyIndicator.showWhile(display, longJob); |
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94 } // widgetSelected(); |
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95 }); // addSelectionListener |
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96 |
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97 |
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98 shell.setSize(250, 150); |
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99 shell.open(); |
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100 while (!shell.isDisposed()) { |
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101 if (!display.readAndDispatch()) |
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102 display.sleep(); |
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103 } |
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104 display.dispose(); |
28 | 105 } |
106 | |
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107 void printStart(Text text, int id ) { |
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108 if (text.isDisposed()) return; |
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109 getDwtLogger().info( __FILE__, __LINE__, "Start long running task {}", id ); |
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110 text.append(Format("\nStart long running task {}", id)); |
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111 } |
28 | 112 |
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113 void printEnd(Text text, int id ) { |
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114 if (text.isDisposed()) return; |
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115 getDwtLogger().info( __FILE__, __LINE__, "Completed long running task {}", id ); |
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116 text.append(Format("\nCompleted long running task {}", id)); |
28 | 117 } |