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/*****************************************************************************
* Copyright (c) 2017 CEA LIST and others.
*
* 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:
* CEA LIST - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.common.utils;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Map.Entry;
import org.eclipse.draw2d.FigureCanvas;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.gef.EditPartViewer;
import org.eclipse.gef.commands.Command;
import org.eclipse.gmf.runtime.diagram.core.preferences.PreferencesHint;
import org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IDiagramPreferenceSupport;
import org.eclipse.gmf.runtime.diagram.ui.requests.CreateViewRequest;
import org.eclipse.gmf.runtime.diagram.ui.requests.DropObjectsRequest;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
/**
* Different utility methods prior to paste command.
* @since 3.0
*/
public class CopyPasteUtil {
// TODO: should be provided configurable in prefs
public static final int DEFAULT_AVOID_SUPERPOSITION_Y = 10;
// TODO: should be provided configurable in prefs
public static final int DEFAULT_AVOID_SUPERPOSITION_X = 10;
/**
* Shift position to avoid overlap
*
* @param point
* @return
*/
public static Point shiftLayout(Point point) {
return new Point(point.x + DEFAULT_AVOID_SUPERPOSITION_X, point.y + DEFAULT_AVOID_SUPERPOSITION_Y);
}
/**
* @param targetEditPart
* @return
*/
public static Point getCursorPosition(GraphicalEditPart targetEditPart) {
Display display = Display.getDefault();
org.eclipse.swt.graphics.Point cursorLocation = display.getCursorLocation();
EditPartViewer viewer = targetEditPart.getViewer();
Control control = viewer.getControl();
org.eclipse.swt.graphics.Point point = control.toControl(cursorLocation);
FigureCanvas figureCanvas = (FigureCanvas) control;
Point location = figureCanvas.getViewport().getViewLocation();
return new Point(point.x + location.x, point.y + location.y);
}
/**
* @param collection
* @return
*/
public static Collection<EObject> filterEObject(Collection<Object> collection) {
List<EObject> eobjectList = new ArrayList<EObject>();
for (Object object : collection) {
if (object instanceof EObject) {
eobjectList.add((EObject) object);
}
}
return eobjectList;
}
/**
* @param copier
* @return
*/
public static Map<Object, EObject> transtypeCopier(EcoreUtil.Copier copier) {
Map<Object, EObject> map = new HashMap<Object, EObject>();
Set<Entry<EObject, EObject>> entrySet = copier.entrySet();
for (Entry<EObject, EObject> entry : entrySet) {
map.put(entry.getKey(), entry.getValue());
}
return map;
}
/**
* Look in the list of the children editParts, the one that accept the create view request
*
* @param targetEditPart
* @param view
* @return
*/
public static GraphicalEditPart lookForTargetEditPart(GraphicalEditPart targetEditPart, View view){
List<?> children = targetEditPart.getChildren();
PreferencesHint prefs = ((IDiagramPreferenceSupport) targetEditPart.getRoot()).getPreferencesHint();
CreateViewRequest request = new CreateViewRequest(view.getElement(), prefs);
for (Object object : children) {
if (object instanceof GraphicalEditPart) {
GraphicalEditPart graphicalEditPart = (GraphicalEditPart) object;
Command command = graphicalEditPart.getCommand(request);
if (command != null) {
return graphicalEditPart;
}
}
}
return null;
}
/**
* Look in sub container for a dropcommand
*
* @param targetEditPart
* @param objectToDrop
* @return
*/
public static Command lookForCommandInSubContainer(GraphicalEditPart targetEditPart, List<EObject> objectToDrop) {
List<?> children = targetEditPart.getChildren();
DropObjectsRequest dropObjectsRequest = new DropObjectsRequest();
for (Object object : children) {
if (object instanceof GraphicalEditPart) {
GraphicalEditPart graphicalEditPart = (GraphicalEditPart) object;
Point center = graphicalEditPart.getFigure().getBounds().getCenter();
dropObjectsRequest.setLocation(center);
dropObjectsRequest.setObjects(objectToDrop);
Command command = graphicalEditPart.getCommand(dropObjectsRequest);
if (command != null) {
return command;
}
}
}
return null;
}
/**
*
* Look in sub container for a dropcommand
*
* @param targetEditPart
* @param semanticObjects
* @param newLocation
* @return
*/
public static Command lookForCommandInSubContainer(GraphicalEditPart targetEditPart, List<EObject> semanticObjects, Point newLocation) {
List<?> children = targetEditPart.getChildren();
DropObjectsRequest dropObjectsRequest = new DropObjectsRequest();
for (Object object : children) {
if (object instanceof GraphicalEditPart) {
GraphicalEditPart graphicalEditPart = (GraphicalEditPart) object;
dropObjectsRequest.setLocation(newLocation);
dropObjectsRequest.setObjects(semanticObjects);
Command command = graphicalEditPart.getCommand(dropObjectsRequest);
if (command != null) {
return command;
}
}
}
return null;
}
}
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