plugins/maven/src/main/java/org/jetbrains/idea/maven/project/MavenDisablePanelCheckbox.java

/*
 * Copyright 2000-2012 JetBrains s.r.o.
 *
 * 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.
 */
package org.jetbrains.idea.maven.project;

import com.intellij.openapi.util.Pair;
import org.jetbrains.annotations.NotNull;

import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import java.awt.*;
import java.util.HashSet;
import java.util.Set;

/**
 * @author Sergey Evdokimov
 */
public class MavenDisablePanelCheckbox extends JCheckBox {

  private final JComponent myPanel;
  private Set<JComponent> myDisabledComponents;

  public MavenDisablePanelCheckbox(String text, @NotNull JComponent panel) {
    super(text);
    myPanel = panel;

    addChangeListener(new ChangeListener() {
      @Override
      public void stateChanged(ChangeEvent e) {
        if (MavenDisablePanelCheckbox.this.isSelected()) {
          if (myDisabledComponents == null) {
            myDisabledComponents = new HashSet<JComponent>();
            disable(myPanel);
          }
        }
        else {
          if (myDisabledComponents != null) {
            enable(myPanel);
            myDisabledComponents = null;
          }
        }

      }
    });
  }

  private void disable(JComponent c) {
    if (c.isEnabled()) {
      myDisabledComponents.add(c);
      c.setEnabled(false);
    }

    for (Component component : c.getComponents()) {
      if (component instanceof JComponent) {
        disable((JComponent)component);
      }
    }
  }

  private void enable(JComponent c) {
    if (myDisabledComponents.contains(c)) {
      c.setEnabled(true);
    }

    for (Component component : c.getComponents()) {
      if (component instanceof JComponent) {
        enable((JComponent)component);
      }
    }
  }

  public static Pair<JPanel, JCheckBox> createPanel(JComponent component, String title) {
    JPanel panel = new JPanel(new BorderLayout()) {
      @Override
      public void setEnabled(boolean enabled) {
        super.setEnabled(enabled);
        Color c = enabled ? Color.GRAY : Color.LIGHT_GRAY;
        setBorder(BorderFactory.createCompoundBorder(BorderFactory.createMatteBorder(1, 0, 0, 0, c), BorderFactory.createEmptyBorder(10, 0, 0, 0)));
      }
    };
    panel.setEnabled(true);
    panel.add(component);

    JCheckBox checkbox = new MavenDisablePanelCheckbox(title, panel);

    JPanel res = new JPanel(new BorderLayout(0, 10));
    res.add(checkbox, BorderLayout.NORTH);
    res.add(panel, BorderLayout.CENTER);

    return Pair.create(res, checkbox);

  }

}