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Fluent interface for functional GUI testing

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/**
 * Licensed 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.
 *
 * Copyright 2012-2015 the original author or authors.
 */
package org.assertj.swing.driver;

import static java.lang.Boolean.parseBoolean;
import static org.assertj.core.util.Preconditions.checkNotNull;
import static org.assertj.swing.edt.GuiActionRunner.execute;

import java.awt.Point;

import javax.annotation.Nonnull;
import javax.swing.JCheckBox;
import javax.swing.JTable;

import org.assertj.swing.annotation.RunsInEDT;
import org.assertj.swing.core.Robot;
import org.assertj.swing.edt.GuiQuery;
import org.assertj.swing.util.Pair;

/**
 * {@link org.assertj.swing.cell.JTableCellWriter} that knows how to use {@code JTextComponent}s as cell editors.
 *
 * @author Alex Ruiz
 * @author Yvonne Wang
 */
public class JTableCheckBoxEditorCellWriter extends AbstractJTableCellWriter {
  public JTableCheckBoxEditorCellWriter(@Nonnull Robot robot) {
    super(robot);
  }

  @RunsInEDT
  @Override
  public void enterValue(@Nonnull JTable table, int row, int column, @Nonnull String value) {
    boolean realValue = parseBoolean(value);
    Pair editingInfo = doStartCellEditing(table, row, column, location());
    if (editingInfo.first == realValue) {
      return; // JCheckBox already has value to set.
    }
    robot.click(table, checkNotNull(editingInfo.second));
  }

  @RunsInEDT
  @Override
  public void startCellEditing(@Nonnull JTable table, int row, int column) {
    doStartCellEditing(table, row, column, location());
  }

  @RunsInEDT
  private static @Nonnull Pair doStartCellEditing(final @Nonnull JTable table, final int row,
                                                                  final int column,
                                                                  final @Nonnull JTableLocation location) {
    Pair result = execute(new GuiQuery>() {
      @Override
      protected Pair executeInEDT() {
        JCheckBox editor = editor(table, row, column, JCheckBox.class);
        scrollToCell(table, row, column, location);
        return Pair.of(editor.isSelected(), location.pointAt(table, row, column));
      }
    });
    return checkNotNull(result);
  }
}