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/*****************************************************************************
* Copyright (c) 2014 CEA LIST.
*
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Patrick Tessier (CEA LIST) - Initial API and implementation
/*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.menu.actions;
/*****************************************************************************
* Copyright (c) 2009-2010 CEA LIST.
*
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
*
*****************************************************************************/
import java.util.List;
import org.eclipse.draw2d.geometry.PrecisionRectangle;
import org.eclipse.gef.commands.Command;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.papyrus.uml.diagram.common.layout.DistributionConstants;
/**
* The Class AbstractDistributeAction.
*/
public abstract class AbstractDistributeAction {
/**
* Indicates if we are in a degraded mode for the vertical distribution
* this value is changed by {@link #calculatesSpaceBetweenNodes(PrecisionRectangle, List)}
*/
protected boolean verticalDegradedMode = false;
/**
* Indicates if we are in a degraded mode for the horizontal distribution
* this value is changed by {@link #calculatesSpaceBetweenNodes(PrecisionRectangle, List)}
*/
protected boolean horizontalDegradedMode = false;
/** the selected elements for this action */
protected List<IGraphicalEditPart> selectedElements;
/** the distribution type */
protected int distribution;
/**
* Checks if is horizontal degraded mode.
*
* @return true, if is horizontal degraded mode
*/
public boolean isHorizontalDegradedMode() {
return horizontalDegradedMode;
}
/**
* Checks if is vertical degraded mode.
*
* @return true, if is vertical degraded mode
*/
public boolean isVerticalDegradedMode() {
return verticalDegradedMode;
}
/**
* Sets the vertical degraded mode.
*
* @param verticalDegradedMode
* the new vertical degraded mode
*/
public void setVerticalDegradedMode(boolean verticalDegradedMode) {
this.verticalDegradedMode = verticalDegradedMode;
}
/**
* Sets the horizontal degraded mode.
*
* @param horizontalDegradedMode
* the new horizontal degraded mode
*/
public void setHorizontalDegradedMode(boolean horizontalDegradedMode) {
this.horizontalDegradedMode = horizontalDegradedMode;
}
/**
* Gets the distribution.
*
* @return the distribution
*/
public int getDistribution() {
return this.distribution;
}
/**
*
* Constructor.
*
* @param distribution
* the distribution
* @param selectedElements
* the selected elements for the action
*/
public AbstractDistributeAction(int distribution, List<IGraphicalEditPart> selectedElements) {
this.distribution = distribution;
this.selectedElements = selectedElements;
buildAction(selectedElements);
}
/**
* We build the different elements used to do the action
*
* @param elementsForAction
* the elements on which this action is applied
*/
protected abstract void buildAction(List<?> elementsForAction);
/**
* Return the command to do this action
*
* @return
* the command to do this action
*/
public abstract Command getCommand();
/**
*
* @param selectedElements
* the element on which the command is applied
* @return
* <ul>
* <li> <code>true</code> if the command can be build</li>
* <li> <code>false</code> if not</li>
* </ul>
*/
protected boolean canExistCommand(List<?> selectedElements) {
switch (this.distribution) {
case DistributionConstants.DISTRIBUTE_H_CONTAINER_INT:
if (selectedElements.size() >= 1) {
return true;
}
break;
case DistributionConstants.DISTRIBUTE_H_NODES_INT:
if (selectedElements.size() > 2) {
return true;
}
break;
case DistributionConstants.DISTRIBUTE_V_CONTAINER_INT:
if (selectedElements.size() >= 1) {
return true;
}
break;
case DistributionConstants.DISTRIBUTE_V_NODES_INT:
if (selectedElements.size() > 2) {
return true;
}
break;
default:
break;
}
return false;
}
}
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