/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.uima.taeconfigurator.editors.ui.dialogs;

import java.util.Iterator;
import java.util.Map;

import org.apache.uima.taeconfigurator.editors.ui.AbstractSection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableItem;

/**
 * The Class EditSofaBindingsDialog.
 */
public class EditSofaBindingsDialog extends AbstractDialog {

  /** The selected sofa names. */
  public String[] selectedSofaNames; // this is the selection indexes into next

  /** The avail and bound sofas. */
  private Map availAndBoundSofas;

  /** The aggr sofa name. */
  private String aggrSofaName;

  /** The table. */
  private Table table;

  /**
   * Instantiates a new edits the sofa bindings dialog.
   *
   * @param aSection
   *          the a section
   * @param aAggrSofaName
   *          the a aggr sofa name
   * @param aAvailAndBoundSofas
   *          the a avail and bound sofas
   */
  public EditSofaBindingsDialog(AbstractSection aSection, String aAggrSofaName,
          Map aAvailAndBoundSofas) {
    super(aSection, "Assign Components and their sofas to an Aggregate Sofa Name",
            "Change the selection as needed to reflect bindings.");
    availAndBoundSofas = aAvailAndBoundSofas;
    aggrSofaName = aAggrSofaName;
  }

  /*
   * (non-Javadoc)
   * 
   * @see
   * org.apache.uima.taeconfigurator.editors.ui.dialogs.AbstractDialog#createDialogArea(org.eclipse.
   * swt.widgets.Composite)
   */
  @Override
  protected Control createDialogArea(Composite parent) {
    // create composite
    //
    // Bindings for aggregate sofa name xxxxxx:
    // <Table with multi-select, one column>
    // component/sofa-name
    // component
    //

    Composite composite = (Composite) super.createDialogArea(parent);
    Label info = new Label(composite, SWT.NONE);
    info.setText("Select all the delegate sofas from the list below which should be "
            + "associated with the aggregate sofa name \"" + aggrSofaName + "\".\n"
            + "Hold down the Shift or Control keys to select multiple items.");

    table = newTable(composite, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL);

    int i = 0;
    for (Iterator it = availAndBoundSofas.entrySet().iterator(); it.hasNext(); i++) {
      TableItem item = new TableItem(table, SWT.NONE);
      Map.Entry entry = (Map.Entry) it.next();
      item.setText((String) entry.getKey());
      if (null != entry.getValue())
        table.select(i);
    }
    table.pack();

    return composite;
  }

  /*
   * (non-Javadoc)
   * 
   * @see org.apache.uima.taeconfigurator.editors.ui.dialogs.AbstractDialog#copyValuesFromGUI()
   */
  @Override
  public void copyValuesFromGUI() {
    selectedSofaNames = new String[table.getSelectionCount()];
    for (int i = 0, j = 0; i < table.getItemCount(); i++) {
      if (table.isSelected(i)) {
        selectedSofaNames[j++] = table.getItem(i).getText();
      }
    }
  }

  /*
   * (non-Javadoc)
   * 
   * @see org.apache.uima.taeconfigurator.editors.ui.dialogs.AbstractDialog#isValid()
   */
  @Override
  public boolean isValid() {
    // TODO Auto-generated method stub
    return true;
  }

  /*
   * (non-Javadoc)
   * 
   * @see org.apache.uima.taeconfigurator.editors.ui.dialogs.AbstractDialog#enableOK()
   */
  @Override
  public void enableOK() {
    okButton.setEnabled(true);
  }
}
