001/***************************************************************************** 002 * Copyright by The HDF Group. * 003 * Copyright by the Board of Trustees of the University of Illinois. * 004 * All rights reserved. * 005 * * 006 * This file is part of the HDF Java Products distribution. * 007 * The full copyright notice, including terms governing use, modification, * 008 * and redistribution, is contained in the files COPYING and Copyright.html. * 009 * COPYING can be found at the root of the source code distribution tree. * 010 * Or, see https://support.hdfgroup.org/products/licenses.html * 011 * If you do not have access to either file, you may request a copy from * 012 * help@hdfgroup.org. * 013 ****************************************************************************/ 014 015package hdf.view.dialog; 016 017import java.util.Iterator; 018import java.util.List; 019import java.util.Vector; 020 021import org.eclipse.swt.SWT; 022import org.eclipse.swt.events.DisposeEvent; 023import org.eclipse.swt.events.DisposeListener; 024import org.eclipse.swt.events.SelectionAdapter; 025import org.eclipse.swt.events.SelectionEvent; 026import org.eclipse.swt.events.TraverseEvent; 027import org.eclipse.swt.events.TraverseListener; 028import org.eclipse.swt.graphics.Point; 029import org.eclipse.swt.graphics.Rectangle; 030import org.eclipse.swt.layout.GridData; 031import org.eclipse.swt.layout.GridLayout; 032import org.eclipse.swt.widgets.Button; 033import org.eclipse.swt.widgets.Combo; 034import org.eclipse.swt.widgets.Composite; 035import org.eclipse.swt.widgets.Display; 036import org.eclipse.swt.widgets.Label; 037import org.eclipse.swt.widgets.Shell; 038import org.eclipse.swt.widgets.Text; 039 040import hdf.object.Datatype; 041import hdf.object.Group; 042import hdf.object.HObject; 043import hdf.view.Tools; 044import hdf.view.ViewProperties; 045 046/** 047 * NewDatatypeDialog shows a message dialog requesting user input for creating a 048 * new HDF5 datatype. 049 * 050 * @author Jordan T. Henderson 051 * @version 2.4 1/1/2016 052 */ 053public class NewDatatypeDialog extends NewDataObjectDialog { 054 055 private Combo parentChoice; 056 057 /** TextField for entering the name of the object */ 058 protected Text nameField; 059 060 /** a list of current groups */ 061 private List<Group> groupList; 062 063 /** 064 * Constructs a NewDatatypeDialog with specified list of possible parent 065 * groups. 066 * 067 * @param parent 068 * the parent shell of the dialog 069 * @param pGroup 070 * the parent group which the new group is added to. 071 * @param objs 072 * the list of all objects. 073 */ 074 public NewDatatypeDialog(Shell parent, Group pGroup, List<?> objs) { 075 super(parent, pGroup, objs); 076 } 077 078 public void open() { 079 Shell parent = getParent(); 080 shell = new Shell(parent, SWT.SHELL_TRIM | SWT.APPLICATION_MODAL); 081 shell.setFont(curFont); 082 shell.setText("New Datatype..."); 083 shell.setImage(ViewProperties.getHdfIcon()); 084 shell.setLayout(new GridLayout(1, false)); 085 086 087 // Create Datatype name / Parent group region 088 Composite fieldComposite = new Composite(shell, SWT.NONE); 089 fieldComposite.setLayout(new GridLayout(2, false)); 090 fieldComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); 091 092 Label label = new Label(fieldComposite, SWT.LEFT); 093 label.setFont(curFont); 094 label.setText("Datatype name: "); 095 096 nameField = new Text(fieldComposite, SWT.SINGLE | SWT.BORDER); 097 nameField.setFont(curFont); 098 nameField.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); 099 nameField.addTraverseListener(new TraverseListener() { 100 @Override 101 public void keyTraversed(TraverseEvent e) { 102 if (e.detail == SWT.TRAVERSE_TAB_NEXT || e.detail == SWT.TRAVERSE_TAB_PREVIOUS) { 103 e.doit = true; 104 } 105 } 106 }); 107 108 label = new Label(fieldComposite, SWT.LEFT); 109 label.setFont(curFont); 110 label.setText("Parent Group: "); 111 112 parentChoice = new Combo(fieldComposite, SWT.DROP_DOWN | SWT.BORDER | SWT.READ_ONLY); 113 parentChoice.setFont(curFont); 114 parentChoice.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); 115 parentChoice.addSelectionListener(new SelectionAdapter() { 116 @Override 117 public void widgetSelected(SelectionEvent e) { 118 parentObj = groupList.get(parentChoice.getSelectionIndex()); 119 } 120 }); 121 122 groupList = new Vector<>(objList.size()); 123 Object obj = null; 124 Iterator<?> iterator = objList.iterator(); 125 while (iterator.hasNext()) { 126 obj = iterator.next(); 127 if (obj instanceof Group) { 128 Group g = (Group) obj; 129 groupList.add(g); 130 if (g.isRoot()) { 131 parentChoice.add(HObject.SEPARATOR); 132 } 133 else { 134 parentChoice.add(g.getPath() + g.getName() + HObject.SEPARATOR); 135 } 136 } 137 } 138 139 if (((Group) parentObj).isRoot()) { 140 parentChoice.select(parentChoice.indexOf(HObject.SEPARATOR)); 141 } 142 else { 143 parentChoice.select(parentChoice.indexOf(parentObj.getPath() + parentObj.getName() + HObject.SEPARATOR)); 144 } 145 146 // Create Datatype settings region 147 createDatatypeWidget(); 148 149 // Create Ok/Cancel button region 150 Composite buttonComposite = new Composite(shell, SWT.NONE); 151 buttonComposite.setLayout(new GridLayout(2, true)); 152 buttonComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); 153 154 Button okButton = new Button(buttonComposite, SWT.PUSH); 155 okButton.setFont(curFont); 156 okButton.setText(" &OK "); 157 okButton.setLayoutData(new GridData(SWT.END, SWT.FILL, true, false)); 158 okButton.addSelectionListener(new SelectionAdapter() { 159 @Override 160 public void widgetSelected(SelectionEvent e) { 161 newObject = createNewDatatype(); 162 163 if (newObject != null) { 164 shell.dispose(); 165 } 166 } 167 }); 168 169 Button cancelButton = new Button(buttonComposite, SWT.PUSH); 170 cancelButton.setFont(curFont); 171 cancelButton.setText(" &Cancel "); 172 cancelButton.setLayoutData(new GridData(SWT.BEGINNING, SWT.FILL, true, false)); 173 cancelButton.addSelectionListener(new SelectionAdapter() { 174 @Override 175 public void widgetSelected(SelectionEvent e) { 176 newObject = null; 177 shell.dispose(); 178 } 179 }); 180 181 //Control[] controls = new Control[] { okButton, cancelButton }; 182 //shell.setTabList(controls); 183 shell.pack(); 184 185 shell.addDisposeListener(new DisposeListener() { 186 @Override 187 public void widgetDisposed(DisposeEvent e) { 188 if (curFont != null) curFont.dispose(); 189 } 190 }); 191 192 shell.setMinimumSize(shell.computeSize(SWT.DEFAULT, SWT.DEFAULT)); 193 194 Rectangle parentBounds = parent.getBounds(); 195 Point shellSize = shell.getSize(); 196 shell.setLocation((parentBounds.x + (parentBounds.width / 2)) - (shellSize.x / 2), 197 (parentBounds.y + (parentBounds.height / 2)) - (shellSize.y / 2)); 198 199 shell.open(); 200 201 Display display = shell.getDisplay(); 202 while (!shell.isDisposed()) 203 if (!display.readAndDispatch()) 204 display.sleep(); 205 } 206 207 public Datatype createNewDatatype() { 208 String name = null; 209 Group pgroup = null; 210 211 name = nameField.getText().trim(); 212 if ((name == null) || (name.length() < 1)) { 213 shell.getDisplay().beep(); 214 Tools.showError(shell, "Create", "Datatype name is not specified."); 215 return null; 216 } 217 218 if (name.indexOf(HObject.SEPARATOR) >= 0) { 219 shell.getDisplay().beep(); 220 Tools.showError(shell, "Create", "Datatype name cannot contain path."); 221 return null; 222 } 223 224 pgroup = groupList.get(parentChoice.getSelectionIndex()); 225 226 if (pgroup == null) { 227 shell.getDisplay().beep(); 228 Tools.showError(shell, "Create", "Parent group is null."); 229 return null; 230 } 231 232 Datatype datatype = null; 233 try { 234 String fullPath = HObject.SEPARATOR; 235 if (pgroup.isRoot()) { 236 fullPath += name; 237 } 238 else { 239 fullPath = pgroup.getPath() + HObject.SEPARATOR + pgroup.getName() + HObject.SEPARATOR + name; 240 } 241 datatype = super.createNewDatatype(fullPath); 242 } 243 catch (Exception ex) { 244 shell.getDisplay().beep(); 245 Tools.showError(shell, "Create", ex.getMessage()); 246 return null; 247 } 248 249 return datatype; 250 } 251}