Package org.objectstyle.wolips.eomodeler.editors.entities

Source Code of org.objectstyle.wolips.eomodeler.editors.entities.EOEntitiesTableViewer$DoubleClickNewEntityHandler

/*
* ====================================================================
*
* The ObjectStyle Group Software License, Version 1.0
*
* Copyright (c) 2006 The ObjectStyle Group and individual authors of the
* software. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowlegement: "This product includes software
* developed by the ObjectStyle Group (http://objectstyle.org/)." Alternately,
* this acknowlegement may appear in the software itself, if and wherever such
* third-party acknowlegements normally appear.
*
* 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse or
* promote products derived from this software without prior written permission.
* For written permission, please contact andrus@objectstyle.org.
*
* 5. Products derived from this software may not be called "ObjectStyle" nor
* may "ObjectStyle" appear in their names without prior written permission of
* the ObjectStyle Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* OBJECTSTYLE GROUP OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many individuals on
* behalf of the ObjectStyle Group. For more information on the ObjectStyle
* Group, please see <http://objectstyle.org/>.
*/
package org.objectstyle.wolips.eomodeler.editors.entities;

import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.objectstyle.wolips.baseforuiplugins.utils.ErrorUtils;
import org.objectstyle.wolips.baseforuiplugins.utils.KeyComboBoxCellEditor;
import org.objectstyle.wolips.baseforuiplugins.utils.TableRowDoubleClickHandler;
import org.objectstyle.wolips.baseforuiplugins.utils.WOTextCellEditor;
import org.objectstyle.wolips.eomodeler.Messages;
import org.objectstyle.wolips.eomodeler.core.model.EOEntity;
import org.objectstyle.wolips.eomodeler.core.model.EOModel;
import org.objectstyle.wolips.eomodeler.editors.IEOModelEditor;
import org.objectstyle.wolips.eomodeler.utils.StayEditingCellEditorListener;
import org.objectstyle.wolips.eomodeler.utils.TableRefreshPropertyListener;
import org.objectstyle.wolips.eomodeler.utils.TableRowRefreshPropertyListener;
import org.objectstyle.wolips.eomodeler.utils.TableUtils;

public class EOEntitiesTableViewer extends Composite implements ISelectionProvider, IEOModelEditor {
  private TableViewer myEntitiesTableViewer;

  private EOModel myModel;

  private TableRefreshPropertyListener myTableRefresher;

  private TableRowRefreshPropertyListener myTableRowRefresher;

  public EOEntitiesTableViewer(Composite _parent, int _style) {
    super(_parent, _style);
    setLayout(new FillLayout());
    myEntitiesTableViewer = TableUtils.createTableViewer(this, SWT.MULTI | SWT.FULL_SELECTION, "EOEntity", EOEntity.class.getName(), new EOEntitiesContentProvider(), new EOEntitiesLabelProvider(EOEntity.class.getName()), new EOEntitiesViewerSorter(EOEntity.class.getName()));
    new DoubleClickNewEntityHandler(myEntitiesTableViewer).attach();
    Table entitiesTable = myEntitiesTableViewer.getTable();
    entitiesTable.setLayoutData(new GridData(GridData.FILL_BOTH));
    TableUtils.sort(myEntitiesTableViewer, EOEntity.NAME);

    CellEditor[] cellEditors = new CellEditor[TableUtils.getColumnsForTableNamed(EOEntity.class.getName()).length];
    TableUtils.setCellEditor(EOEntity.class.getName(), EOEntity.NAME, new WOTextCellEditor(entitiesTable), cellEditors);
    TableUtils.setCellEditor(EOEntity.class.getName(), EOEntity.EXTERNAL_NAME, new WOTextCellEditor(entitiesTable), cellEditors);
    TableUtils.setCellEditor(EOEntity.class.getName(), EOEntity.CLASS_NAME, new WOTextCellEditor(entitiesTable), cellEditors);
    TableUtils.setCellEditor(EOEntity.class.getName(), EOEntity.PARENT, new KeyComboBoxCellEditor(entitiesTable, new String[0], SWT.READ_ONLY), cellEditors);
    myEntitiesTableViewer.setCellModifier(new EOEntitiesCellModifier(myEntitiesTableViewer, cellEditors));
    myEntitiesTableViewer.setCellEditors(cellEditors);
   
    new StayEditingCellEditorListener(myEntitiesTableViewer, EOEntity.class.getName(), EOEntity.NAME);
    new StayEditingCellEditorListener(myEntitiesTableViewer, EOEntity.class.getName(), EOEntity.EXTERNAL_NAME);
    new StayEditingCellEditorListener(myEntitiesTableViewer, EOEntity.class.getName(), EOEntity.CLASS_NAME);
    new StayEditingCellEditorListener(myEntitiesTableViewer, EOEntity.class.getName(), EOEntity.PARENT);

    myTableRefresher = new TableRefreshPropertyListener("EntitiesChanged", myEntitiesTableViewer);
    myTableRowRefresher = new TableRowRefreshPropertyListener(myEntitiesTableViewer);
  }

  public void setModel(EOModel _model) {
    if (myModel != null) {
      //myTableRefresher.start();
      myModel.removePropertyChangeListener(EOModel.ENTITIES, myTableRefresher);
      myModel.removePropertyChangeListener(EOModel.ENTITY, myTableRowRefresher);
    }
    myModel = _model;
    myEntitiesTableViewer.setInput(myModel);
    TableUtils.packTableColumns(myEntitiesTableViewer);
    TableColumn nameColumn = TableUtils.getColumn(myEntitiesTableViewer, EOEntity.class.getName(), EOEntity.NAME);
    if (nameColumn != null) {
      nameColumn.setWidth(Math.max(nameColumn.getWidth(), 100));
    }
    TableColumn externalName = TableUtils.getColumn(myEntitiesTableViewer, EOEntity.class.getName(), EOEntity.EXTERNAL_NAME);
    if (externalName != null) {
      externalName.setWidth(Math.max(externalName.getWidth(), 100));
    }
    TableColumn className = TableUtils.getColumn(myEntitiesTableViewer, EOEntity.class.getName(), EOEntity.CLASS_NAME);
    if (className != null) {
      className.setWidth(Math.max(className.getWidth(), 100));
    }
    TableColumn parentName = TableUtils.getColumn(myEntitiesTableViewer, EOEntity.class.getName(), EOEntity.PARENT);
    if (parentName != null) {
      parentName.setWidth(Math.max(parentName.getWidth(), 100));
    }
    if (myModel != null) {
      //myTableRefresher.stop();
      myModel.addPropertyChangeListener(EOModel.ENTITIES, myTableRefresher);
      myModel.addPropertyChangeListener(EOModel.ENTITY, myTableRowRefresher);
    }

  }

  public EOModel getModel() {
    return myModel;
  }

  public void setSelectedEntity(EOEntity _entity) {
    IStructuredSelection selection = (IStructuredSelection) myEntitiesTableViewer.getSelection();
    if ((_entity == null && !selection.isEmpty()) || (selection != null && !selection.toList().contains(_entity))) {
      if (_entity == null) {
        myEntitiesTableViewer.setSelection(new StructuredSelection(), true);
      } else {
        myEntitiesTableViewer.setSelection(new StructuredSelection(_entity), true);
      }
    }
  }

  public TableViewer getTableViewer() {
    return myEntitiesTableViewer;
  }

  public void setSelection(ISelection _selection) {
    myEntitiesTableViewer.setSelection(_selection);
  }

  public ISelection getSelection() {
    return myEntitiesTableViewer.getSelection();
  }

  public void addSelectionChangedListener(ISelectionChangedListener _listener) {
    myEntitiesTableViewer.addSelectionChangedListener(_listener);
  }

  public void removeSelectionChangedListener(ISelectionChangedListener _listener) {
    myEntitiesTableViewer.removeSelectionChangedListener(_listener);
  }

  protected class DoubleClickNewEntityHandler extends TableRowDoubleClickHandler {
    public DoubleClickNewEntityHandler(TableViewer _viewer) {
      super(_viewer);
    }

    protected void emptyDoubleSelectionOccurred() {
      try {
        EOEntitiesTableViewer.this.getModel().addBlankEntity(Messages.getString("EOEntity.newName"));
      } catch (Throwable e) {
        ErrorUtils.openErrorDialog(Display.getDefault().getActiveShell(), e);
      }
    }

    protected void doubleSelectionOccurred(ISelection _selection) {
      // DO NOTHING
    }
  }
}
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