plugins/ui-designer/src/com/intellij/uiDesigner/actions/PackAction.java

/*
 * Copyright 2000-2009 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 com.intellij.uiDesigner.actions;

import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.uiDesigner.radComponents.RadComponent;
import com.intellij.uiDesigner.radComponents.RadContainer;
import com.intellij.uiDesigner.designSurface.GuiEditor;
import org.jetbrains.annotations.NotNull;

import java.util.ArrayList;
import java.util.List;

/**
 * @author yole
 */
public class PackAction extends AbstractGuiEditorAction {
  protected void actionPerformed(final GuiEditor editor, final List<RadComponent> selection, final AnActionEvent e) {
    RadContainer container = getContainerToPack(selection);
    if (container != null) {
      container.getDelegee().setSize(container.getMinimumSize());
      container.getDelegee().revalidate();
    }
  }

  protected void update(@NotNull GuiEditor editor, final ArrayList<RadComponent> selection, final AnActionEvent e) {
    e.getPresentation().setEnabled(getContainerToPack(selection) != null);
  }

  private static RadContainer getContainerToPack(final List<RadComponent> selection) {
    if (selection.size() != 1 || !(selection.get(0) instanceof RadContainer)) {
      return null;
    }

    RadContainer container = (RadContainer)selection.get(0);
    if (!container.getParent().isXY()) {
      return null;
    }
    return container;
  }
}