1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.ui.dialogs;
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14 import org.eclipse.jface.action.IAction;
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15 import org.eclipse.jface.dialogs.Dialog;
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16 import org.eclipse.jface.dialogs.IDialogConstants;
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17 import org.eclipse.jface.dialogs.IDialogSettings;
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18 import org.eclipse.jface.resource.ImageDescriptor;
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19 import org.eclipse.jface.resource.JFaceResources;
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20 import org.eclipse.jface.resource.LocalResourceManager;
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21 import org.eclipse.jface.resource.ResourceManager;
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22 import org.eclipse.jface.viewers.ArrayContentProvider;
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23 import org.eclipse.jface.viewers.DoubleClickEvent;
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24 import org.eclipse.jface.viewers.IDoubleClickListener;
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25 import org.eclipse.jface.viewers.ISelection;
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26 import org.eclipse.jface.viewers.ISelectionChangedListener;
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27 import org.eclipse.jface.viewers.IStructuredSelection;
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28 import org.eclipse.jface.viewers.LabelProvider;
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29 import org.eclipse.jface.viewers.SelectionChangedEvent;
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30 import org.eclipse.jface.viewers.StructuredSelection;
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31 import org.eclipse.jface.viewers.TableViewer;
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32 import org.eclipse.jface.viewers.Viewer;
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33 import org.eclipse.jface.viewers.ViewerSorter;
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34 import org.eclipse.swt.SWT;
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35 import org.eclipse.swt.graphics.Image;
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36 import org.eclipse.swt.graphics.Point;
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37 import org.eclipse.swt.layout.GridData;
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38 import org.eclipse.swt.widgets.Button;
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39 import org.eclipse.swt.widgets.Composite;
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40 import org.eclipse.swt.widgets.Control;
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41 import org.eclipse.swt.widgets.Event;
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42 import org.eclipse.swt.widgets.Label;
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43 import org.eclipse.swt.widgets.Listener;
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44 import org.eclipse.swt.widgets.Shell;
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45 import org.simantics.ui.internal.Activator;
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46 import org.simantics.utils.strings.AlphanumComparator;
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47 import org.simantics.utils.ui.action.IPriorityAction;
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51 * @author Tuukka Lehtonen
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53 public class ActionChooserDialog extends Dialog {
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55 private static final String DIALOG = "ActionChooserDialog"; //$NON-NLS-1$
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57 private final IAction[] actions;
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59 private final String title;
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61 private final String description;
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63 private IAction chosenAction;
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65 private TableViewer viewer;
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67 private IDialogSettings dialogBoundsSettings;
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69 private ResourceManager resourceManager;
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71 public ActionChooserDialog(Shell parent, IPriorityAction[] actions, String title, String description) {
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73 this.actions = actions;
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75 this.description = description;
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77 IDialogSettings settings = Activator.getDefault().getDialogSettings();
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78 dialogBoundsSettings = settings.getSection(DIALOG);
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79 if (dialogBoundsSettings == null)
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80 dialogBoundsSettings = settings.addNewSection(DIALOG);
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84 protected IDialogSettings getDialogBoundsSettings() {
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85 return dialogBoundsSettings;
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89 protected void configureShell(Shell newShell) {
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90 if (title != null) {
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91 newShell.setText(title);
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93 newShell.setText("Choose Action");
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95 super.configureShell(newShell);
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99 protected int getShellStyle() {
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100 return super.getShellStyle() | SWT.RESIZE;
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104 protected Point getInitialSize() {
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105 Point defaultSize = getShell().computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
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106 Point result = super.getInitialSize();
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107 if (defaultSize.equals(result))
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108 return new Point(300, 300);
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113 protected Control createDialogArea(Composite parent) {
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114 Composite composite = (Composite) super.createDialogArea(parent);
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116 this.resourceManager = new LocalResourceManager(JFaceResources.getResources());
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117 composite.addListener(SWT.Dispose, new Listener() {
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119 public void handleEvent(Event event) {
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120 resourceManager.dispose();
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121 resourceManager = null;
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125 if (description != null) {
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126 Label label = new Label(composite, 0);
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127 label.setText(description);
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128 label.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
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131 viewer = new TableViewer(composite, SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER | SWT.SINGLE);
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132 viewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
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133 viewer.setContentProvider(new ArrayContentProvider());
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134 viewer.setLabelProvider(new ActionLabelProvider());
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135 viewer.setSorter(sorter);
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136 viewer.setInput(actions);
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138 viewer.addDoubleClickListener(new IDoubleClickListener() {
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140 public void doubleClick(DoubleClickEvent event) {
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145 viewer.addSelectionChangedListener(new ISelectionChangedListener() {
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147 public void selectionChanged(SelectionChangedEvent event) {
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148 ActionChooserDialog.this.selectionChanged(event.getSelection());
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152 if (actions.length > 0) {
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153 viewer.setSelection(new StructuredSelection(actions[0]), true);
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156 applyDialogFont(composite);
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160 private void selectionChanged(ISelection s) {
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161 Button ok = getButton(IDialogConstants.OK_ID);
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162 IStructuredSelection iss = (IStructuredSelection) s;
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163 if (iss == null || iss.isEmpty()) {
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165 ok.setEnabled(false);
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170 ok.setEnabled(true);
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175 protected void okPressed() {
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176 chosenAction = (IAction) ((IStructuredSelection) viewer.getSelection()).getFirstElement();
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180 public IAction getChosenAction() {
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181 return chosenAction;
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184 private final ViewerSorter sorter = new ViewerSorter() {
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186 public int category(Object element) {
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187 // Sort actions in descending priority order
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188 if (element instanceof IPriorityAction) {
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189 IPriorityAction action = (IPriorityAction) element;
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190 return -action.getPriority();
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192 return Integer.MAX_VALUE;
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195 public int compare(Viewer viewer, Object e1, Object e2) {
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196 IPriorityAction a1 = (IPriorityAction) e1;
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197 IPriorityAction a2 = (IPriorityAction) e2;
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198 return AlphanumComparator.CASE_INSENSITIVE_COMPARATOR.compare(a1.getText(), a2.getText());
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202 class ActionLabelProvider extends LabelProvider {
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204 public Image getImage(Object element) {
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205 IAction a = (IAction) element;
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206 ImageDescriptor desc = a.getImageDescriptor();
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207 if(desc == null) return null;
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208 else return resourceManager.createImage(desc);
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212 public String getText(Object element) {
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213 IPriorityAction a = (IPriorityAction) element;
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214 return a.getText() + " (" + a.getPriority() + ")";
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215 // return a.getText();
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