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 org.eclipse.swt.SWT; |
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18 | import org.eclipse.swt.events.SelectionAdapter; |
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19 | import org.eclipse.swt.events.SelectionEvent; |
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20 | import org.eclipse.swt.layout.GridData; |
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21 | import org.eclipse.swt.layout.GridLayout; |
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22 | import org.eclipse.swt.widgets.Button; |
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23 | import org.eclipse.swt.widgets.Dialog; |
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24 | import org.eclipse.swt.widgets.Display; |
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25 | import org.eclipse.swt.widgets.MessageBox; |
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26 | import org.eclipse.swt.widgets.Shell; |
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27 | import org.eclipse.swt.widgets.Tree; |
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28 | import org.eclipse.swt.widgets.TreeItem; |
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29 | |
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30 | import de.ugoe.cs.autoquest.eventcore.HierarchicalEventTargetModel; |
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31 | import de.ugoe.cs.autoquest.eventcore.IHierarchicalEventTarget; |
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32 | import de.ugoe.cs.autoquest.eventcore.IHierarchicalEventTargetModel; |
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33 | import de.ugoe.cs.util.console.Console; |
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34 | |
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35 | import org.eclipse.swt.widgets.Label; |
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36 | |
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37 | public class ShowGuiModelDialog<T extends IHierarchicalEventTarget> extends Dialog { |
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38 | |
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39 | protected Shell shell; |
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40 | private Tree targetTree; |
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41 | |
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42 | protected IHierarchicalEventTargetModel<T> model; |
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43 | |
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44 | public ShowGuiModelDialog(Shell parent, int style, IHierarchicalEventTargetModel<T> model, String modelName) { |
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45 | super(parent, style); |
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46 | setText("GUI Model " + modelName); |
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47 | this.model = model; |
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48 | } |
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49 | |
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50 | public void open() { |
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51 | createContents(); |
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52 | shell.open(); |
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53 | shell.layout(); |
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54 | Display display = getParent().getDisplay(); |
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55 | while (!shell.isDisposed()) { |
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56 | if (!display.readAndDispatch()) { |
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57 | display.sleep(); |
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58 | } |
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59 | } |
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60 | } |
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61 | |
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62 | private void createContents() { |
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63 | shell = new Shell(getParent(), SWT.SHELL_TRIM | SWT.BORDER | SWT.APPLICATION_MODAL); |
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64 | shell.setSize(450, 300); |
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65 | shell.setText(getText()); |
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66 | |
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67 | shell.setLayout(new GridLayout(4, false)); |
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68 | |
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69 | targetTree = new Tree(shell, SWT.BORDER | SWT.MULTI); |
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70 | targetTree.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 4, 1)); |
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71 | |
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72 | buildTargetTree(); |
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73 | |
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74 | Button btnExpandAll = new Button(shell, SWT.NONE); |
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75 | btnExpandAll.addSelectionListener(new SelectionAdapter() { |
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76 | @Override |
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77 | public void widgetSelected(SelectionEvent e) { |
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78 | expandAll(targetTree, true); |
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79 | } |
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80 | }); |
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81 | btnExpandAll.setText("Expand all"); |
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82 | |
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83 | Button btnCollapseAll = new Button(shell, SWT.NONE); |
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84 | btnCollapseAll.addSelectionListener(new SelectionAdapter() { |
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85 | @Override |
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86 | public void widgetSelected(SelectionEvent e) { |
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87 | expandAll(targetTree, false); |
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88 | } |
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89 | }); |
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90 | btnCollapseAll.setText("Collapse all"); |
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91 | |
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92 | if (model instanceof HierarchicalEventTargetModel) { |
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93 | Button btnCondense = new Button(shell, SWT.NONE); |
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94 | btnCondense.addSelectionListener(new SelectionAdapter() { |
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95 | @Override |
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96 | public void widgetSelected(SelectionEvent e) { |
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97 | ((HierarchicalEventTargetModel<?>) model).condenseModel(); |
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98 | targetTree.removeAll(); |
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99 | buildTargetTree(); |
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100 | } |
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101 | }); |
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102 | btnCondense.setText("Condense"); |
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103 | |
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104 | Button btnMerge = new Button(shell, SWT.NONE); |
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105 | btnMerge.addSelectionListener(new SelectionAdapter() { |
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106 | @Override |
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107 | public void widgetSelected(SelectionEvent e) { |
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108 | mergeSelectedNode(targetTree); |
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109 | } |
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110 | }); |
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111 | btnMerge.setText("Merge nodes"); |
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112 | } |
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113 | |
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114 | //new Label(shell, SWT.NONE); |
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115 | new Label(shell, SWT.NONE); |
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116 | new Label(shell, SWT.NONE); |
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117 | new Label(shell, SWT.NONE); |
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118 | |
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119 | } |
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120 | |
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121 | private void buildTargetTree() { |
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122 | IHierarchicalEventTargetModel.Traverser<T> traverser = model.getTraverser(); |
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123 | |
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124 | IHierarchicalEventTarget root = traverser.firstChild(); |
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125 | |
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126 | while (root != null) { |
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127 | TreeItem child = new TreeItem(targetTree, SWT.NULL); |
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128 | child.setText(root.toString()); |
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129 | child.setData(root); |
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130 | buildTargetTree(child, traverser); |
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131 | root = traverser.nextSibling(); |
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132 | } |
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133 | } |
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134 | |
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135 | private void buildTargetTree(TreeItem currentParent, |
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136 | IHierarchicalEventTargetModel.Traverser<T> traverser) |
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137 | { |
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138 | if (traverser.hasFirstChild()) { |
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139 | T childElement = traverser.firstChild(); |
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140 | |
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141 | while (childElement != null) { |
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142 | TreeItem child = new TreeItem(currentParent, SWT.NULL); |
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143 | child.setText(childElement.toString()); |
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144 | child.setData(childElement); |
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145 | buildTargetTree(child, traverser); |
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146 | childElement = traverser.nextSibling(); |
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147 | } |
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148 | |
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149 | traverser.parent(); |
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150 | } |
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151 | } |
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152 | |
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153 | private void expandAll(Tree tree, boolean expanded) { |
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154 | for (TreeItem item : tree.getItems()) { |
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155 | expandAll(item, expanded); |
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156 | } |
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157 | } |
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158 | |
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159 | private void expandAll(TreeItem item, boolean expanded) { |
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160 | item.setExpanded(expanded); |
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161 | for (TreeItem childItem : item.getItems()) { |
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162 | expandAll(childItem, expanded); |
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163 | } |
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164 | } |
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165 | |
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166 | @SuppressWarnings("unchecked") |
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167 | private void mergeSelectedNode(Tree tree) { |
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168 | TreeItem[] selectedNodes = tree.getSelection(); |
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169 | if( selectedNodes.length<2 ) { |
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170 | MessageBox messageBox = new MessageBox(shell, SWT.ERROR); |
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171 | messageBox.setMessage("Must select at least two nodes to merge!"); |
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172 | messageBox.setText("Error"); |
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173 | messageBox.open(); |
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174 | return; |
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175 | } |
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176 | |
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177 | TreeItem firstParent = selectedNodes[0].getParentItem(); |
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178 | for( int i=1 ; i<selectedNodes.length ; i++ ) { |
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179 | if( firstParent!=selectedNodes[i].getParentItem() ) { |
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180 | MessageBox messageBox = new MessageBox(shell, SWT.ERROR); |
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181 | messageBox.setMessage("All selected nodes must have the same parent!"); |
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182 | messageBox.setText("Error"); |
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183 | messageBox.open(); |
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184 | return; |
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185 | } |
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186 | } |
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187 | |
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188 | try { |
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189 | // try to merge the elements |
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190 | T firstElement = (T) selectedNodes[0].getData(); |
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191 | for( int i=1 ; i<selectedNodes.length ; i++ ) { |
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192 | ((HierarchicalEventTargetModel<T>) model).mergeEventTargets |
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193 | (firstElement, (T) selectedNodes[i].getData()); |
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194 | } |
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195 | } |
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196 | catch( IllegalArgumentException e) { |
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197 | Console.logException(e); |
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198 | } |
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199 | |
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200 | // update visualization of the model |
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201 | if (firstParent != null) { |
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202 | firstParent.removeAll(); |
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203 | buildTargetTree(firstParent, model.getTraverser((T) firstParent.getData())); |
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204 | firstParent.setExpanded(true); |
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205 | } |
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206 | else { |
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207 | targetTree.removeAll(); |
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208 | buildTargetTree(); |
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209 | } |
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210 | } |
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211 | |
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212 | } |
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