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