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1 /*******************************************************************************
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2 * Copyright (c) 2005, 2007 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 jface.snippets.wizard.Snippet047WizardWithLongRunningOperation;
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14
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32
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15 import org.eclipse.jface.viewers.ArrayContentProvider;
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16 import org.eclipse.jface.viewers.ISelectionChangedListener;
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17 import org.eclipse.jface.viewers.SelectionChangedEvent;
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18 import org.eclipse.jface.viewers.TableViewer;
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19 import org.eclipse.jface.wizard.IWizardPage;
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20 import org.eclipse.jface.wizard.Wizard;
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21 import org.eclipse.jface.wizard.WizardDialog;
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22 import org.eclipse.jface.wizard.WizardPage;
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23 import org.eclipse.swt.SWT;
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24 import org.eclipse.swt.events.SelectionAdapter;
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25 import org.eclipse.swt.events.SelectionEvent;
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26 import org.eclipse.swt.layout.FillLayout;
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27 import org.eclipse.swt.layout.GridData;
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28 import org.eclipse.swt.layout.GridLayout;
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29 import org.eclipse.swt.widgets.Button;
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30 import org.eclipse.swt.widgets.Composite;
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31 import org.eclipse.swt.widgets.Display;
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32 import org.eclipse.swt.widgets.Label;
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33 import org.eclipse.swt.widgets.ProgressBar;
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34 import org.eclipse.swt.widgets.Shell;
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31
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35
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32
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36 import java.lang.all;
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37 import java.utils.ArrayList;
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38
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39 import java.lang.Thread;
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31
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40 import tango.text.convert.Format;
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41
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32
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42 import org.eclipse.jface.operation.ModalContext;
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31
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43
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44 /**
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45 * Example how to load data from a background thread into a TableViewer
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46 *
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47 * @author Tom Schindl <tom.schindl@bestsolution.at>
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48 * @since 1.0
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49 */
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50 public class Snippet047WizardWithLongRunningOperation {
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51
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52 private static class MyWizard : Wizard {
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53
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54 private int loadingType;
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55
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56 public this(int loadingType) {
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57 this.loadingType = loadingType;
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58 }
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59
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60 /*
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61 * (non-Javadoc)
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62 *
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63 * @see org.eclipse.jface.wizard.Wizard#addPages()
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31
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64 */
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65 public void addPages() {
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66 addPage(new MyWizardPageThread("Thread Page", loadingType));
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67 addPage(new MyWizardPage("Standard Page"));
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68 }
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69
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70 public bool performFinish() {
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71 return true;
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72 }
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73
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74 /*
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75 * (non-Javadoc)
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76 *
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77 * @see org.eclipse.jface.wizard.Wizard#canFinish()
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31
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78 */
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79 public bool canFinish() {
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80 IWizardPage[] pages = getPages();
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81 for (int i = 0; i < pages.length; i++) {
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82 if (!pages[i].isPageComplete()) {
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83 return false;
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84 }
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85 }
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86
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87 return true;
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88 }
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89
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90 };
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91
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92 private static class MyWizardPage : WizardPage {
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93
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94 protected this(String pageName) {
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95 super(pageName);
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96 setTitle(pageName);
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97 }
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98
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99 public /+override+/ void createControl(Composite parent) {
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100 Composite comp = new Composite(parent, SWT.NONE);
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31
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101 setControl(comp);
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102 }
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103 }
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104
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105 private static class MyWizardPageThread : WizardPage {
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106 private int loadingType;
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107 private bool loading = true;
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108 private TableViewer v;
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109
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110 protected this(String pageName, int loadingType) {
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111 super(pageName);
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112 this.loadingType = loadingType;
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113 setTitle(pageName);
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114 }
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115
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116 public /+override+/ void createControl(Composite parent) {
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117 auto mt = new MyThread();
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118 mt.parent = parent;
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119
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120 mt.comp = new Composite(parent, SWT.NONE);
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121 mt.comp.setLayout(new GridLayout(1, false));
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122
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123 v = new TableViewer(mt.comp, SWT.FULL_SELECTION);
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124 v.setContentProvider(new ArrayContentProvider!(Object)());
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125 v.getTable().setLayoutData(new GridData(GridData.FILL_BOTH));
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126 v.addSelectionChangedListener(new class ISelectionChangedListener {
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127
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128 public void selectionChanged(SelectionChangedEvent event) {
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129 getWizard().getContainer().updateButtons();
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130 }
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131
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132 });
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133
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134 mt.barContainer = new Composite(mt.comp, SWT.NONE);
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135 mt.barContainer.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
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136 mt.barContainer.setLayout(new GridLayout(2, false));
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137
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138 Label l = new Label(mt.barContainer, SWT.NONE);
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139 l.setText("Loading Data");
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140
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141 mt.bar = new ProgressBar(mt.barContainer,
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142 (loadingType == 1) ? SWT.INDETERMINATE : SWT.NONE);
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143 mt.bar.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
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144
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145 if (loadingType == 2) {
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146 mt.bar.setMaximum(10);
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147 }
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148
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149 setControl(mt.comp);
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150
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151 ModalContext.run( dgRunnable(&mt.threadWork), true, getProgressMonitor(), getShell().getDisplay() );
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152
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153 //Thread t = new Thread(&mt.threadWork);
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154
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155 // t.start();
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156 }
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157 class MyThread {
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158 private Composite parent;
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159 private Composite barContainer;
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160 private Composite comp;
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161 private ProgressBar bar;
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162
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163 private void threadWork(){
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164 if (loadingType == 1) {
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165 try {
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166 Thread.sleep(10_000);
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167 ArrayList ms = new ArrayList();
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168 for (int i = 0; i < 10; i++) {
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169 ms.add(new MyModel(i));
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170 }
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171
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172 if (v.getTable().isDisposed()) {
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173 return;
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174 }
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175
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176 parent.getDisplay().asyncExec(dgRunnable((ArrayList ms_){
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177 v.setInput(ms_);
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178 (cast(GridData) barContainer.getLayoutData()).exclude = true;
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179 comp.layout(true);
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180 }, ms ));
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181 } catch (InterruptedException e) {
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182 // TODO Auto-generated catch block
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183 ExceptionPrintStackTrace(e);
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184 }
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185 } else {
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186 ArrayList ms = new ArrayList();
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187 parent.getDisplay().syncExec( dgRunnable( (ArrayList ms_){
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188 v.setInput(ms_);
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189 }, ms ));
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190
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191 for (int i = 0; i < 10; i++) {
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192 int j = i;
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193 if (v.getTable().isDisposed()) {
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194 return;
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195 }
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196 parent.getDisplay().asyncExec( dgRunnable( (int j_){
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197 MyModel tmp = new MyModel(j_);
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198 v.add(tmp);
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199 ms.add(tmp);
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200 bar.setSelection(j_ + 1);
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201 }, j ));
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202
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203 try {
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204 Thread.sleep(1_000);
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31
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205 } catch (InterruptedException e) {
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206 // TODO Auto-generated catch block
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207 ExceptionPrintStackTrace(e);
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208 }
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209 }
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210
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211 parent.getDisplay().asyncExec(dgRunnable( {
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212
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213 (cast(GridData) barContainer.getLayoutData()).exclude = true;
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214 comp.layout(true);
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215 }));
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216 }
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217
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218 parent.getDisplay().syncExec(dgRunnable( {
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219 loading = false;
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220 getWizard().getContainer().updateButtons();
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221 }));
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222 }
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223 }
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224 public bool isPageComplete() {
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225 return !loading && !v.getSelection().isEmpty();
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226 }
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227
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228 }
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229
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230 private static class MyModel {
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231 private int index;
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232
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233 public this(int index) {
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234 this.index = index;
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235 }
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236
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237 public String toString() {
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238 return Format("Item-{}", index);
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239 }
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240 }
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241
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242 static Shell shell;
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243 public static void main(String[] args) {
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244 Display display = new Display();
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245
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246 shell = new Shell(display);
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247 shell.setLayout(new FillLayout());
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248
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249 Button b = new Button(shell, SWT.PUSH);
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250 b.setText("Load in one Chunk");
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251 b.addSelectionListener(new class SelectionAdapter {
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252
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253 public void widgetSelected(SelectionEvent e) {
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254 WizardDialog dialog = new WizardDialog(shell, new MyWizard(1));
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255 dialog.open();
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256 }
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257
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258 });
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259
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260 b = new Button(shell, SWT.PUSH);
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261 b.setText("Load Item by Item");
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262 b.addSelectionListener(new class SelectionAdapter {
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263
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264 public void widgetSelected(SelectionEvent e) {
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265 WizardDialog dialog = new WizardDialog(shell, new MyWizard(2));
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266 dialog.open();
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267 }
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268
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269 });
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270
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271 shell.open();
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272
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273 while (!shell.isDisposed()) {
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274 if (!display.readAndDispatch())
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275 display.sleep();
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276 }
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277
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278 display.dispose();
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279 }
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280 }
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281
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282 void main(){
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283 Snippet047WizardWithLongRunningOperation.main(null);
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284 }
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