eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/featuretree/SelectFeatureTreeWizardPage.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10
  11 package eu.etaxonomy.taxeditor.featuretree;
  12
  13 import java.util.List;
  14
  15 import org.eclipse.core.commands.ExecutionException;
  16 import org.eclipse.jface.viewers.ISelectionChangedListener;
  17 import org.eclipse.jface.viewers.IStructuredSelection;
  18 import org.eclipse.jface.viewers.ListViewer;
  19 import org.eclipse.jface.viewers.SelectionChangedEvent;
  20 import org.eclipse.jface.viewers.StructuredSelection;
  21 import org.eclipse.jface.wizard.WizardPage;
  22 import org.eclipse.swt.SWT;
  23 import org.eclipse.swt.events.ModifyEvent;
  24 import org.eclipse.swt.events.ModifyListener;
  25 import org.eclipse.swt.events.SelectionAdapter;
  26 import org.eclipse.swt.events.SelectionEvent;
  27 import org.eclipse.swt.layout.GridData;
  28 import org.eclipse.swt.layout.GridLayout;
  29 import org.eclipse.swt.widgets.Button;
  30 import org.eclipse.swt.widgets.Composite;
  31 import org.eclipse.swt.widgets.Label;
  32 import org.eclipse.swt.widgets.Text;
  33
  34 import eu.etaxonomy.cdm.api.service.DeleteResult;
  35 import eu.etaxonomy.cdm.api.service.IFeatureTreeService;
  36 import eu.etaxonomy.cdm.api.service.exception.DataChangeNoRollbackException;
  37 import eu.etaxonomy.cdm.model.description.FeatureTree;
  38 import eu.etaxonomy.taxeditor.store.CdmStore;
  39 import eu.etaxonomy.taxeditor.store.StoreUtil;
  40
  41 /**
  42  * <p>SelectFeatureTreeWizardPage class.</p>
  43  *
  44  * @author n.hoffmann
  45  * @created Aug 5, 2010
  46  * @version 1.0
  47  */
  48 public class SelectFeatureTreeWizardPage extends WizardPage implements ISelectionChangedListener, ModifyListener{
  49
  50         private ListViewer viewer;
  51         private Text text_title;
  52         private Button button_add;
  53         private Button button_remove;
  54
  55         /**
  56          * <p>Constructor for SelectFeatureTreeWizardPage.</p>
  57          *
  58          * @param pageName a {@link java.lang.String} object.
  59          */
  60         protected SelectFeatureTreeWizardPage(String pageName) {
  61                 super(pageName);
  62                 setMessage("Select a Feature Tree or create a new one.");
  63         }
  64
  65         /* (non-Javadoc)
  66          * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
  67          */
  68         /** {@inheritDoc} */
  69         @Override
  70         public void createControl(Composite parent) {
  71                 Composite composite = new Composite(parent, SWT.NULL);
  72
  73                 composite.setLayout(new GridLayout());
  74
  75                 Composite composite_treeContent = new Composite(composite, SWT.NULL);
  76                 composite_treeContent.setLayoutData(new GridData(SWT.FILL, SWT.FILL,
  77                                 true, true));
  78                 composite_treeContent.setLayout(new GridLayout(2, false));
  79
  80                 viewer = new ListViewer(composite_treeContent);
  81                 viewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  82
  83                 button_remove = new Button(composite_treeContent, SWT.PUSH);
  84                 button_remove.setText("Remove");
  85                 button_remove.setLayoutData(new GridData(SWT.RIGHT, SWT.TOP, false, false));
  86
  87                 Composite composite_treeTitle = new Composite(composite, SWT.NULL);
  88                 composite_treeTitle.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true,
  89                                 false));
  90                 composite_treeTitle.setLayout(new GridLayout(3, false));
  91
  92
  93
  94                 Label label_title = new Label(composite_treeTitle, SWT.NULL);
  95                 label_title.setText("New Feature Tree");
  96
  97                 text_title = new Text(composite_treeTitle, SWT.NULL);
  98                 text_title.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
  99
 100                 button_add = new Button(composite_treeTitle, SWT.PUSH);
 101                 button_add.setText("Add");
 102
 103                 viewer.setContentProvider(new FeatureTreeContentProvider());
 104                 viewer.setLabelProvider(new FeatureTreeLabelProvider());
 105
 106                 viewer.addSelectionChangedListener(this);
 107
 108                 text_title.addModifyListener(this);
 109                 button_add.addSelectionListener(new AddButtonSelectionListener());
 110                 button_remove.addSelectionListener(new RemoveButtonSelectionListener());
 111
 112                 List<FeatureTree> input = CdmStore.getService(IFeatureTreeService.class).list(FeatureTree.class, null, null, null, null);
 113
 114                 viewer.setInput(input);
 115                 modifyText(null);
 116                 setControl(composite);
 117         }
 118
 119         /** {@inheritDoc} */
 120         @Override
 121         public void selectionChanged(SelectionChangedEvent event) {
 122                 IStructuredSelection selection = (IStructuredSelection) event.getSelection();
 123
 124                 if(selection.size() == 1){
 125                         FeatureTree selectedFeatureTree = (FeatureTree) selection.getFirstElement();
 126                         ((FeatureTreeEditorWizard) getWizard()).setSelectedFeatureTree(selectedFeatureTree);
 127
 128                 }
 129
 130                 setPageComplete(true);
 131
 132                 button_remove.setEnabled(selection.size() >= 1);
 133         }
 134
 135         /** {@inheritDoc} */
 136         @Override
 137         public boolean canFlipToNextPage() {
 138                 return ((IStructuredSelection) viewer.getSelection()).size() == 1;
 139         }
 140
 141         /** {@inheritDoc} */
 142         @Override
 143         public void modifyText(ModifyEvent e) {
 144                 button_add.setEnabled(! text_title.getText().isEmpty());
 145         }
 146
 147         private class AddButtonSelectionListener extends SelectionAdapter {
 148                 public void widgetSelected(SelectionEvent e) {
 149                         FeatureTree featureTree = FeatureTree.NewInstance();
 150                         featureTree.setTitleCache(text_title.getText(), true);
 151
 152                         viewer.add(featureTree);
 153                         CdmStore.getService(IFeatureTreeService.class).saveOrUpdate(featureTree);
 154                         text_title.setText("");
 155                         viewer.setSelection(new StructuredSelection(featureTree));
 156
 157                 }
 158         }
 159
 160         private class RemoveButtonSelectionListener extends SelectionAdapter {
 161                 public void widgetSelected(SelectionEvent e) {
 162                         IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
 163                         for(Object element : selection.toArray()){
 164                                 viewer.remove(element);
 165
 166                                 DeleteResult result =   CdmStore.getService(IFeatureTreeService.class).delete((FeatureTree) element);
 167
 168                                 if (result.isError()){
 169
 170                                 }
 171                                 viewer.setSelection(new StructuredSelection(new Object[0]));
 172                         }
 173                 }
 174         }
 175 }