Package org.objectstyle.wolips.eomodeler.actions

Source Code of org.objectstyle.wolips.eomodeler.actions.PasteAction

/*
* ====================================================================
*
* 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.
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* 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
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* 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.actions;

import java.util.Arrays;

import org.eclipse.core.commands.operations.IOperationHistory;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.util.LocalSelectionTransfer;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.PlatformUI;
import org.objectstyle.wolips.baseforuiplugins.utils.ErrorUtils;
import org.objectstyle.wolips.eomodeler.core.model.EOModelObject;
import org.objectstyle.wolips.eomodeler.core.utils.EOModelUtils;

public class PasteAction extends EMAction {
  public void run() {
    try {
      Control focusControl = Display.getCurrent().getFocusControl();
      // Is this a copy for the viewer? styled text? or regular text?
      if (focusControl instanceof Text) {
        ((Text) focusControl).paste();
        return;
      } else if (focusControl instanceof StyledText) {
        ((StyledText) focusControl).paste();
        return;
      }

      EOModelObject selectedObject = (EOModelObject) getSelectedObject();
      ISelection pastedSelection = LocalSelectionTransfer.getTransfer().getSelection();
      if (pastedSelection != null) {
        Object[] clipboardObjects = ((IStructuredSelection) pastedSelection).toArray();
        Arrays.sort(clipboardObjects, new PasteOrderComparator());

        SimpleCompositeOperation pasteOperation = new SimpleCompositeOperation(EOModelUtils.getOperationLabel("Paste", Arrays.asList(clipboardObjects)));
        for (Object clipboardObject : clipboardObjects) {
          if (clipboardObject instanceof EOModelObject) {
            EOModelObject eoModelObject = (EOModelObject) clipboardObject;
            Class<EOModelObject> modelParentClass = eoModelObject._getModelParentType();
            EOModelObject pasteIntoObject = EOModelUtils.getRelated(modelParentClass, selectedObject);
            if (pasteIntoObject != null) {
              EOModelObject clonedPasteObject = eoModelObject._cloneModelObject();
              pasteOperation.add(new AddOperation(pasteIntoObject, clonedPasteObject));
            }
          }
        }

        pasteOperation.addContext(EOModelUtils.getUndoContext(selectedObject));
        IOperationHistory operationHistory = PlatformUI.getWorkbench().getOperationSupport().getOperationHistory();
        operationHistory.execute(pasteOperation, null, null);
      }
    } catch (Throwable t) {
      ErrorUtils.openErrorDialog(Display.getDefault().getActiveShell(), t);
    }
  }

  public void runWithEvent(Event event) {
    run();
  }

  public void run(IAction action) {
    run();
  }
}
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