1 | // Copyright 2012 Georg-August-Universität Göttingen, Germany |
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2 | // |
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3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
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4 | // you may not use this file except in compliance with the License. |
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5 | // You may obtain a copy of the License at |
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6 | // |
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7 | // http://www.apache.org/licenses/LICENSE-2.0 |
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8 | // |
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9 | // Unless required by applicable law or agreed to in writing, software |
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10 | // distributed under the License is distributed on an "AS IS" BASIS, |
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11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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12 | // See the License for the specific language governing permissions and |
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13 | // limitations under the License. |
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14 | |
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15 | package de.ugoe.cs.autoquest.ui.swt; |
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16 | |
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17 | import java.util.Collection; |
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18 | import java.util.HashSet; |
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19 | import java.util.List; |
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20 | import java.util.Set; |
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21 | |
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22 | import org.eclipse.swt.SWT; |
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23 | import org.eclipse.swt.custom.SashForm; |
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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.GridData; |
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27 | import org.eclipse.swt.layout.GridLayout; |
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28 | import org.eclipse.swt.widgets.Button; |
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29 | import org.eclipse.swt.widgets.Dialog; |
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30 | import org.eclipse.swt.widgets.Display; |
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31 | import org.eclipse.swt.widgets.Event; |
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32 | import org.eclipse.swt.widgets.Listener; |
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33 | import org.eclipse.swt.widgets.Shell; |
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34 | import org.eclipse.swt.widgets.Tree; |
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35 | import org.eclipse.swt.widgets.TreeItem; |
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36 | |
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37 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IMarkingTemporalRelationship; |
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38 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IStructuringTemporalRelationship; |
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39 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITask; |
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40 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInstance; |
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41 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInstanceList; |
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42 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskModel; |
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43 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IUserSession; |
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44 | |
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45 | import org.eclipse.swt.widgets.Label; |
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46 | |
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47 | /** |
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48 | * <p> |
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49 | * TODO comment |
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50 | * </p> |
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51 | * |
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52 | * @author Patrick Harms |
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53 | */ |
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54 | public class ShowTaskTreeDialog extends Dialog { |
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55 | |
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56 | /** */ |
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57 | protected Shell shell; |
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58 | |
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59 | /** */ |
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60 | private Tree instanceTree; |
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61 | |
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62 | /** */ |
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63 | private Tree modelTree; |
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64 | |
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65 | /** */ |
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66 | protected ITaskModel taskModel; |
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67 | |
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68 | /** |
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69 | * |
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70 | */ |
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71 | public ShowTaskTreeDialog(Shell parent, int style, ITaskModel taskModel, String taskTreeName) { |
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72 | super(parent, style); |
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73 | setText("Task Model " + taskTreeName); |
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74 | this.taskModel = taskModel; |
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75 | } |
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76 | |
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77 | /** |
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78 | * |
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79 | */ |
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80 | public void open() { |
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81 | createContents(); |
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82 | shell.open(); |
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83 | shell.layout(); |
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84 | Display display = getParent().getDisplay(); |
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85 | while (!shell.isDisposed()) { |
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86 | if (!display.readAndDispatch()) { |
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87 | display.sleep(); |
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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 | /** |
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93 | * |
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94 | */ |
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95 | private void createContents() { |
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96 | shell = new Shell(getParent(), SWT.SHELL_TRIM | SWT.BORDER | SWT.APPLICATION_MODAL); |
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97 | shell.setSize(750, 800); |
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98 | shell.setText(getText()); |
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99 | |
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100 | shell.setLayout(new GridLayout(4, false)); |
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101 | |
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102 | SashForm sashForm = new SashForm(shell, SWT.HORIZONTAL); |
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103 | sashForm.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 4, 1)); |
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104 | |
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105 | instanceTree = new Tree(sashForm, SWT.BORDER | SWT.MULTI); |
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106 | instanceTree.addSelectionListener(new SelectionAdapter() { |
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107 | @Override |
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108 | public void widgetSelected(SelectionEvent e) { |
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109 | modelTree.removeAll(); |
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110 | TreeItem[] selectedItems = instanceTree.getSelection(); |
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111 | if (selectedItems.length == 1) { |
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112 | if (selectedItems[0].getData() instanceof ITaskInstance) { |
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113 | buildModelTree((ITaskInstance) selectedItems[0].getData()); |
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114 | } |
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115 | else if (selectedItems[0].getData() instanceof ITaskModel) { |
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116 | buildModelTree((ITaskModel) selectedItems[0].getData()); |
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117 | } |
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118 | } |
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119 | } |
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120 | }); |
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121 | |
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122 | buildInstanceTree(); |
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123 | |
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124 | modelTree = new Tree(sashForm, SWT.BORDER | SWT.MULTI); |
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125 | buildModelTree(taskModel); |
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126 | |
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127 | Button btnExpandAll = new Button(shell, SWT.NONE); |
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128 | btnExpandAll.addSelectionListener(new SelectionAdapter() { |
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129 | @Override |
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130 | public void widgetSelected(SelectionEvent e) { |
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131 | expandAll(instanceTree, true); |
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132 | } |
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133 | }); |
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134 | btnExpandAll.setText("Expand all"); |
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135 | |
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136 | Button btnCollapseAll = new Button(shell, SWT.NONE); |
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137 | btnCollapseAll.addSelectionListener(new SelectionAdapter() { |
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138 | @Override |
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139 | public void widgetSelected(SelectionEvent e) { |
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140 | expandAll(instanceTree, false); |
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141 | } |
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142 | }); |
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143 | btnCollapseAll.setText("Collapse all"); |
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144 | |
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145 | //new Label(shell, SWT.NONE); |
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146 | new Label(shell, SWT.NONE); |
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147 | new Label(shell, SWT.NONE); |
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148 | new Label(shell, SWT.NONE); |
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149 | |
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150 | } |
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151 | |
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152 | /** |
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153 | * |
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154 | */ |
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155 | private void buildInstanceTree() { |
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156 | List<IUserSession> sessions = taskModel.getUserSessions(); |
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157 | |
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158 | TreeItem root = new TreeItem(instanceTree, SWT.NULL); |
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159 | root.setText(sessions.size() + " sessions"); |
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160 | root.setData(taskModel); |
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161 | |
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162 | for (IUserSession session : sessions) { |
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163 | buildInstanceTree(root, session); |
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164 | } |
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165 | } |
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166 | |
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167 | /** |
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168 | * |
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169 | */ |
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170 | private void buildInstanceTree(TreeItem currentParent, ITaskInstanceList taskInstanceList) { |
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171 | TreeItem child = new TreeItem(currentParent, SWT.NULL); |
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172 | child.setText(taskInstanceList.toString()); |
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173 | child.setData(taskInstanceList); |
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174 | |
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175 | for (ITaskInstanceList childTask : taskInstanceList) { |
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176 | buildInstanceTree(child, childTask); |
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177 | } |
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178 | } |
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179 | |
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180 | /** |
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181 | * |
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182 | */ |
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183 | private void buildModelTree(ITaskModel taskModel) { |
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184 | modelTree.removeAll(); |
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185 | |
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186 | // load the correct children on expansion |
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187 | if (modelTree.getListeners(SWT.Expand).length == 0) { |
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188 | modelTree.addListener(SWT.Expand, new Listener() { |
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189 | public void handleEvent(final Event event) { |
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190 | ensureChildren((TreeItem) event.item); |
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191 | ((TreeItem) event.item).setExpanded(true); |
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192 | } |
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193 | }); |
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194 | } |
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195 | |
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196 | Collection<ITask> tasks = taskModel.getTasks(); |
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197 | |
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198 | TreeItem root = new TreeItem(modelTree, SWT.NULL); |
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199 | root.setText(tasks.size() + " tasks in model"); |
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200 | root.setData(taskModel); |
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201 | |
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202 | tasks = determineRootTasks(tasks); |
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203 | |
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204 | for (ITask task : tasks) { |
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205 | createTreeItemFor(task, root); |
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206 | } |
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207 | |
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208 | root.setExpanded(true); |
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209 | } |
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210 | |
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211 | /** |
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212 | * |
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213 | */ |
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214 | private void buildModelTree(ITaskInstance taskInstance) { |
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215 | modelTree.removeAll(); |
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216 | TreeItem root = new TreeItem(modelTree, SWT.NULL); |
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217 | root.setText("model of instance " + taskInstance); |
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218 | root.setData(taskInstance); |
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219 | |
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220 | createTreeItemFor(taskInstance.getTask(), root); |
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221 | |
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222 | expandAll(root, true, 20); |
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223 | } |
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224 | |
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225 | /** |
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226 | * |
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227 | */ |
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228 | private Collection<ITask> determineRootTasks(Collection<ITask> tasks) { |
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229 | Set<ITask> result = new HashSet<ITask>(tasks); |
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230 | |
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231 | for (ITask task : tasks) { |
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232 | removeChildren(task, result); |
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233 | } |
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234 | |
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235 | return result; |
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236 | } |
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237 | |
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238 | /** |
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239 | * |
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240 | */ |
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241 | private void removeChildren(ITask task, Set<ITask> result) { |
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242 | if (task instanceof IStructuringTemporalRelationship) { |
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243 | for (ITask child : ((IStructuringTemporalRelationship) task).getChildren()) { |
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244 | result.remove(child); |
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245 | } |
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246 | } |
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247 | else if (task instanceof IMarkingTemporalRelationship) { |
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248 | result.remove(((IMarkingTemporalRelationship) task).getMarkedTask()); |
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249 | } |
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250 | } |
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251 | |
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252 | /** |
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253 | * |
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254 | */ |
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255 | private void expandAll(Tree tree, boolean expanded) { |
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256 | for (TreeItem item : tree.getItems()) { |
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257 | expandAll(item, expanded, Integer.MAX_VALUE); |
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258 | } |
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259 | } |
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260 | |
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261 | /** |
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262 | * |
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263 | */ |
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264 | private void expandAll(TreeItem item, boolean expanded, int maxChildrenToExpand) { |
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265 | if (expanded) { |
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266 | ensureChildren(item); |
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267 | } |
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268 | |
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269 | if (item.getItems().length < maxChildrenToExpand) { |
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270 | item.setExpanded(expanded); |
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271 | |
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272 | for (TreeItem childItem : item.getItems()) { |
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273 | expandAll(childItem, expanded, maxChildrenToExpand); |
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274 | } |
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275 | } |
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276 | } |
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277 | |
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278 | /** |
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279 | * |
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280 | */ |
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281 | private void ensureChildren(TreeItem parent) { |
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282 | if (parent.getData() instanceof ITask) { |
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283 | TreeItem[] items = parent.getItems(); |
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284 | if ((items == null) || (items.length == 0) || (items[0].getData() == null)) { |
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285 | if (items != null) { |
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286 | for (int i = 0; i < items.length; i++) { |
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287 | items[i].dispose(); |
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288 | } |
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289 | } |
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290 | |
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291 | ITask task = (ITask) parent.getData(); |
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292 | |
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293 | if (task instanceof IStructuringTemporalRelationship) { |
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294 | for (ITask subTask : ((IStructuringTemporalRelationship) task).getChildren()) { |
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295 | createTreeItemFor(subTask, parent); |
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296 | } |
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297 | } |
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298 | else if (task instanceof IMarkingTemporalRelationship) { |
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299 | createTreeItemFor |
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300 | (((IMarkingTemporalRelationship) task).getMarkedTask(), parent); |
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301 | } |
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302 | } |
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303 | } |
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304 | } |
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305 | |
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306 | /** |
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307 | * |
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308 | */ |
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309 | private void createTreeItemFor(ITask task, TreeItem parent) { |
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310 | TreeItem item = new TreeItem(parent, SWT.NULL); |
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311 | item.setText(task.toString()); |
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312 | item.setData(task); |
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313 | |
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314 | // simulate a child |
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315 | if ((task instanceof IStructuringTemporalRelationship) || |
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316 | (task instanceof IMarkingTemporalRelationship)) |
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317 | { |
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318 | new TreeItem(item, SWT.NULL); |
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319 | } |
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320 | } |
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321 | |
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322 | } |
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