Bug 419357: [Diagram][Palette] Diagram must provide a way to restore

existing links
https://bugs.eclipse.org/bugs/show_bug.cgi?id=419357

Creation of a EditPolicyProvider on
"org.eclipse.papyrus.uml.diagram.common" to modify the
"DefaultSemanticEditPolicy" used by many EditPart

Change-Id: I1d3a329841509e1d297b4695019e0455a528a4f5
Signed-off-by: Fanch BONNABESSE <fanch.bonnabesse@all4tec.net>

1 files changed, 526 insertions, 516 deletions

diff --git a/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.common/src/org/eclipse/papyrus/infra/gmfdiag/common/preferences/PreferencesConstantsHelper.java b/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.common/src/org/eclipse/papyrus/infra/gmfdiag/common/preferences/PreferencesConstantsHelper.java
index df97306756a..d4728ccebe9 100644
--- a/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.common/src/org/eclipse/papyrus/infra/gmfdiag/common/preferences/PreferencesConstantsHelper.java
+++ b/plugins/infra/gmfdiag/org.eclipse.papyrus.infra.gmfdiag.common/src/org/eclipse/papyrus/infra/gmfdiag/common/preferences/PreferencesConstantsHelper.java
@@ -1,516 +1,526 @@
-/*****************************************************************************

- * Copyright (c) 2013 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:

- *

- *		CEA LIST - Initial API and implementation

- *

- *****************************************************************************/

-package org.eclipse.papyrus.infra.gmfdiag.common.preferences;

-

-import org.eclipse.gmf.runtime.diagram.ui.internal.properties.WorkspaceViewerProperties;

-

-

-

-/**

- * <p>

- * A class that defines the available preference type available through Papyrus.

- * </p>

- * <p>

- * It defines the following type:

- * </p>

- * <ul>

- * <li>COLOR_FILL</li>

- * <li>FONT</li>

- * <li>COLOR_FONT</li>

- * <li>COLOR_LINE</li>

- * <li>COLOR_GRADIENT</li>

- * <li>GRADIENT_POLICY</li>

- * <li>JUMPLINK_STATUS</li>

- * <li>JUMPLINK_REVERSE</li>

- * <li>JUMPLINK_TYPE</li>

- * <li>ROUTING_POLICY_DISTANCE</li>

- * <li>ROUTING_POLICY_OBSTRUCTION</li>

- * <li>ROUTING_STYLE</li>

- * <li>SMOOTHNESS</li>

- * </ul>

- * <p>

- * It also helps to retrieve the string used to store the preference type for a given element.

- * </p>

- *

- */

-@SuppressWarnings("restriction")

-public class PreferencesConstantsHelper {

-

-	/**

-	 * Prefix for preference for Papyrus Level editor

-	 */

-	public final static String PAPYRUS_EDITOR_PREFERENCE_PREFIX = "PAPYRUS_EDITOR"; //$NON-NLS-1$

-

-	/**

-	 * Prefix for preference for Diagram Level

-	 */

-	public final static String DIAGRAM_PREFERENCE_PREFIX = "DIAGRAM_"; //$NON-NLS-1$

-

-	/**

-	 * Prefix for preference for element Level

-	 */

-	public final static String DIAGRAM_ELEMENT = "ELEMENT_"; //$NON-NLS-1$

-

-	private final static String COLOR = "color."; //$NON-NLS-1$

-

-	private final static String GRADIENT = "gradient"; //$NON-NLS-1$

-

-	private final static String POLICY = ".policy"; //$NON-NLS-1$

-

-	private final static String JUMPLINK = "jumplink."; //$NON-NLS-1$

-

-	private final static String ROUTING = "routing"; //$NON-NLS-1$

-

-	private final static String ROUTING_POLICY = ROUTING + POLICY;

-

-	private final static String COLOR_FILL_CONSTANT = COLOR + "fill"; //$NON-NLS-1$

-

-	private final static String FONT_CONSTANT = "font"; //$NON-NLS-1$

-

-	private final static String COLOR_FONT_CONSTANT = COLOR + FONT_CONSTANT;

-

-	private final static String COLOR_LINE_CONSTANT = COLOR + "line"; //$NON-NLS-1$

-

-	private final static String COLOR_GRADIENT_CONSTANT = COLOR + GRADIENT;

-

-	private final static String GRADIENT_POLICY_CONSTANT = GRADIENT + POLICY;

-

-	private final static String JUMPLINK_STATUS_CONSTANT = JUMPLINK + "status"; //$NON-NLS-1$

-

-	private final static String JUMPLINK_REVERSE_CONSTANT = JUMPLINK + "reverse"; //$NON-NLS-1$

-

-	private final static String JUMPLINK_TYPE_CONSTANT = JUMPLINK + "type"; //$NON-NLS-1$

-

-	private final static String ROUTING_POLICY_DISTANCE_CONSTANT = ROUTING_POLICY + ".distance"; //$NON-NLS-1$

-

-	private final static String ROUTING_POLICY_OBSTRUCTION_CONSTANT = ROUTING_POLICY + ".obstruction"; //$NON-NLS-1$

-

-	private final static String ROUTING_STYLE_CONSTANT = ROUTING + ".style"; //$NON-NLS-1$

-

-	private final static String SMOOTHNESS_CONSTANT = "smoothness"; //$NON-NLS-1$

-

-	private final static String SHADOW_CONSTANT = "shadow"; //$NON-NLS-1$

-

-	private final static String ELEMENTICON_CONSTANT = "elementicon"; //$NON-NLS-1$

-

-	private final static String QUALIFIEDNAME_CONSTANT = "qualifiedname"; //$NON-NLS-1$

-

-	private final static String HEIGHT_CONSTANT = "height";//$NON-NLS-1$

-

-	private final static String WIDTH_CONSTANT = "width"; //$NON-NLS-1$

-

-	private final static String COMPARTMENT_VISIBILITY_CONSTANT = "compartment.visibility"; //$NON-NLS-1$

-

-	private final static String COMPARTMENT_NAME_VISIBILITY_CONSTANT = "compartment_name.visibility"; //$NON-NLS-1$

-

-	private final static String LABEL_VISIBILITY_CONSTANT = "label.visibility"; //$NON-NLS-1$

-

-	private final static String LOCATION_X_CONSTANT = "location_x";//$NON-NLS-1$

-

-	private final static String LOCATION_Y_CONSTANT = "location_y"; //$NON-NLS-1$

-

-	public final static String VIEW_RULERS_CONSTANT = WorkspaceViewerProperties.VIEWRULERS;

-

-	public final static String VIEW_GRID_CONSTANT = WorkspaceViewerProperties.VIEWGRID;

-

-	public final static String RULER_UNITS_CONSTANT = WorkspaceViewerProperties.RULERUNIT;

-

-	public final static String SNAP_TO_GRID_CONSTANT = WorkspaceViewerProperties.SNAPTOGRID;

-

-	public final static String SNAP_TO_GEOMETRY_CONSTANT = WorkspaceViewerProperties.SNAPTOGEOMETRY;

-

-	public final static String GRID_LINE_COLOR_CONSTANT = WorkspaceViewerProperties.GRIDLINECOLOR;

-

-	public final static String GRID_SPACING_CONSTANT = WorkspaceViewerProperties.GRIDSPACING;

-

-	public final static String GRID_ORDER_CONSTANT = WorkspaceViewerProperties.GRIDORDER;

-

-	public final static String GRID_LINE_STYLE_CONSTANT = WorkspaceViewerProperties.GRIDLINESTYLE;

-

-	public final static String VIEW_PAGE_BREAK_CONSTANT = WorkspaceViewerProperties.VIEWPAGEBREAKS;

-

-	public final static String DRAW_CONNECTION_POINT_CONSTANT = "drawConnectionPoint"; //$NON-NLS-1$

-

-	public final static String INVERT_BINDING_FOR_DEFAULT_RESIZE_AND_CONSTRAINED_RESIZE_CONSTANT = "invertBindingForDefaultResizeAndConstrainedResize"; //$NON-NLS-1$

-

-

-	/**

-	 * A preference of type COLOR FILL

-	 */

-	public final static int COLOR_FILL = 0;

-

-	/**

-	 * A preference of type FONT

-	 */

-	public final static int FONT = COLOR_FILL + 1;

-

-	/**

-	 * A preference of type COLOR FONT

-	 */

-	public final static int COLOR_FONT = FONT + 1;

-

-	/**

-	 * A preference of type COLOR LINE

-	 */

-	public final static int COLOR_LINE = COLOR_FONT + 1;

-

-	/**

-	 * A preference of type COLOR GRADIENT

-	 */

-	public final static int COLOR_GRADIENT = COLOR_LINE + 1;

-

-	/**

-	 * A preference of type GRADIENT POLICY

-	 */

-	public final static int GRADIENT_POLICY = COLOR_GRADIENT + 1;

-

-	/**

-	 * A preference of type JUMPLINK STATUS

-	 */

-	public final static int JUMPLINK_STATUS = GRADIENT_POLICY + 1;

-

-	/**

-	 * A preference of type JUMPLINK REVERSE

-	 */

-	public final static int JUMPLINK_REVERSE = JUMPLINK_STATUS + 1;

-

-	/**

-	 * A preference of type JUMPLINK TYPE

-	 */

-	public final static int JUMPLINK_TYPE = JUMPLINK_REVERSE + 1;

-

-	/**

-	 * A preference of type ROUTING POLICY DISTANCE

-	 */

-	public final static int ROUTING_POLICY_DISTANCE = JUMPLINK_TYPE + 1;

-

-	/**

-	 * A preference of type ROUTING POLICY OBSTRUCTION

-	 */

-	public final static int ROUTING_POLICY_OBSTRUCTION = ROUTING_POLICY_DISTANCE + 1;

-

-	/**

-	 * A preference of type ROUTING STYLE

-	 */

-	public final static int ROUTING_STYLE = ROUTING_POLICY_OBSTRUCTION + 1;

-

-	/**

-	 * A preference of type SMOOTHNESS

-	 */

-	public final static int SMOOTHNESS = ROUTING_STYLE + 1;

-

-	/**

-	 * A preference of type Shadow

-	 */

-	public final static int SHADOW = SMOOTHNESS + 1;

-

-	/**

-	 * A preference of type elementIcon

-	 */

-	public final static int ELEMENTICON = SHADOW + 1;

-

-	/**

-	 * A preference of type QualifiedName

-	 */

-	public final static int QUALIFIEDNAME = ELEMENTICON + 1;

-

-	/**

-	 * A preference of type height

-	 */

-	public static final int HEIGHT = QUALIFIEDNAME + 1;

-

-	/**

-	 * A preference of type width

-	 */

-	public static final int WIDTH = HEIGHT + 1;

-

-	/**

-	 * A preference of type compartment visibility

-	 */

-	public static final int COMPARTMENT_VISIBILITY = WIDTH + 1;

-

-	/**

-	 * A preference of type compartment visibility

-	 */

-	public static final int COMPARTMENT_NAME_VISIBILITY = COMPARTMENT_VISIBILITY + 1;

-

-	/**

-	 * A preference of type label visibility

-	 */

-	public static final int LABEL_VISIBILITY = COMPARTMENT_NAME_VISIBILITY + 1;

-

-	/**

-	 * A preference for label default location

-	 */

-	public static final int LOCATION_X = LABEL_VISIBILITY + 1;

-

-	/**

-	 * A preference for label default location

-	 */

-	public static final int LOCATION_Y = LOCATION_X + 1;

-

-	/**

-	 * A preference to diplay or not the rulers

-	 */

-	public static final int VIEW_RULER = LOCATION_Y + 1;

-

-	/**

-	 * A preference to diplay or not the grid

-	 */

-

-	public static final int VIEW_GRID = VIEW_RULER + 1;

-

-	/**

-	 * A preference to change the ruler unit

-	 */

-

-	public static final int RULER_UNITS = VIEW_GRID + 1;

-

-	/**

-	 * A preference to snap the created element to the grid

-	 */

-	public static final int SNAP_TO_GRID = RULER_UNITS + 1;

-

-	/**

-	 * A preference to snap the created element to the shape

-	 */

-	public static final int SNAP_TO_GEOMETRY = SNAP_TO_GRID + 1;

-

-	/**

-	 * A preference to change the grid color

-	 */

-	public static final int GRID_LINE_COLOR = SNAP_TO_GEOMETRY + 1;

-

-	/**

-	 * A preference to change the grid spacing

-	 */

-	public static final int GRID_SPACING = GRID_LINE_COLOR + 1;

-

-	/**

-	 * A preference to change the Z order of the Grid

-	 */

-	public static final int GRID_ORDER = GRID_SPACING + 1;

-

-	/**

-	 * A preference to change the style of the grid

-	 */

-	public static final int GRID_LINE_STYLE = GRID_ORDER + 1;

-

-	/**

-	 * A preference to view the page break on the diagram

-	 */

-	public static final int VIEW_PAGE_BREAK = GRID_LINE_STYLE + 1;

-

-	/**

-	 * A preference to draw big point when 2 links have a common part

-	 */

-	public static final int DRAW_CONNECTION_POINT = VIEW_PAGE_BREAK + 1;

-

-	/**

-	 * A Papyrus preference to define the if the default resize action is constrained or not.

-	 * if the preference is <code>false</code>

-	 * <ul>

-	 * <li>default resize is not constraint</li>

-	 * <li>resize + SHIFT is constrained</li>

-	 * </ul>

-	 */

-	public static final int INVERT_BINDING_FOR_DEFAULT_RESIZE_AND_CONSTRAINED_RESIZE = DRAW_CONNECTION_POINT + 1;

-

-	/**

-	 * Get the preference constant used to store the preference of an element.

-	 *

-	 * @param elementName

-	 *            the name of the element

-	 * @param preferenceType

-	 *            the type of preference to store. It must be a value defined in {@link PreferenceConstantHelper}

-	 * @return the constant used.

-	 */

-	public static String getConstant(String elementName, int preferenceType) {

-		StringBuffer sb = new StringBuffer();

-		sb.append(elementName);

-		sb.append("."); //$NON-NLS-1$

-

-		switch (preferenceType) {

-		case COLOR_FILL:

-			sb.append(COLOR_FILL_CONSTANT);

-			break;

-		case FONT:

-			sb.append(FONT_CONSTANT);

-			break;

-		case COLOR_FONT:

-			sb.append(COLOR_FONT_CONSTANT);

-			break;

-		case COLOR_LINE:

-			sb.append(COLOR_LINE_CONSTANT);

-			break;

-		case COLOR_GRADIENT:

-			sb.append(COLOR_GRADIENT_CONSTANT);

-			break;

-		case GRADIENT_POLICY:

-			sb.append(GRADIENT_POLICY_CONSTANT);

-			break;

-		case JUMPLINK_STATUS:

-			sb.append(JUMPLINK_STATUS_CONSTANT);

-			break;

-		case JUMPLINK_REVERSE:

-			sb.append(JUMPLINK_REVERSE_CONSTANT);

-			break;

-		case JUMPLINK_TYPE:

-			sb.append(JUMPLINK_TYPE_CONSTANT);

-			break;

-		case ROUTING_POLICY_DISTANCE:

-			sb.append(ROUTING_POLICY_DISTANCE_CONSTANT);

-			break;

-		case ROUTING_POLICY_OBSTRUCTION:

-			sb.append(ROUTING_POLICY_OBSTRUCTION_CONSTANT);

-			break;

-		case ROUTING_STYLE:

-			sb.append(ROUTING_STYLE_CONSTANT);

-			break;

-		case SMOOTHNESS:

-			sb.append(SMOOTHNESS_CONSTANT);

-			break;

-		case SHADOW:

-			sb.append(SHADOW_CONSTANT);

-			break;

-		case ELEMENTICON:

-			sb.append(ELEMENTICON_CONSTANT);

-			break;

-		case QUALIFIEDNAME:

-			sb.append(QUALIFIEDNAME_CONSTANT);

-			break;

-		case HEIGHT:

-			sb.append(HEIGHT_CONSTANT);

-			break;

-		case WIDTH:

-			sb.append(WIDTH_CONSTANT);

-			break;

-		case COMPARTMENT_VISIBILITY:

-			sb.append(COMPARTMENT_VISIBILITY_CONSTANT);

-			break;

-		case COMPARTMENT_NAME_VISIBILITY:

-			sb.append(COMPARTMENT_NAME_VISIBILITY_CONSTANT);

-			break;

-		case LABEL_VISIBILITY:

-			sb.append(LABEL_VISIBILITY_CONSTANT);

-			break;

-		case LOCATION_X:

-			sb.append(LOCATION_X_CONSTANT);

-			break;

-		case LOCATION_Y:

-			sb.append(LOCATION_Y_CONSTANT);

-			break;

-		case VIEW_RULER:

-			sb.append(VIEW_RULERS_CONSTANT);

-			break;

-		case VIEW_GRID:

-			sb.append(VIEW_GRID_CONSTANT);

-			break;

-		case RULER_UNITS:

-			sb.append(RULER_UNITS_CONSTANT);

-			break;

-		case SNAP_TO_GRID:

-			sb.append(SNAP_TO_GRID_CONSTANT);

-			break;

-		case SNAP_TO_GEOMETRY:

-			sb.append(SNAP_TO_GEOMETRY_CONSTANT);

-			break;

-		case GRID_LINE_COLOR:

-			sb.append(GRID_LINE_COLOR_CONSTANT);

-			break;

-		case GRID_SPACING:

-			sb.append(GRID_SPACING_CONSTANT);

-			break;

-		case GRID_ORDER:

-			sb.append(GRID_ORDER_CONSTANT);

-			break;

-		case GRID_LINE_STYLE:

-			sb.append(GRID_LINE_STYLE_CONSTANT);

-			break;

-		case VIEW_PAGE_BREAK:

-			sb.append(VIEW_PAGE_BREAK_CONSTANT);

-			break;

-		default:

-			break;

-		}

-

-		return sb.toString();

-	}

-

-	/**

-	 *

-	 * @param elementName

-	 *            diagramKind+'_'+element

-	 * @param preferenceType

-	 *            the type of preference to store. It must be a value defined in {@link PreferenceConstantHelper}

-	 * @return the key for the element of a diagram

-	 */

-	public static String getElementConstant(String elementName, int preferenceType) {

-		return DIAGRAM_ELEMENT + getConstant(elementName, preferenceType);

-	}

-

-	/**

-	 *

-	 * @param elementName

-	 *            diagramKind+'_'+element

-	 * @param compartmentName

-	 *            the compartment name

-	 * @param preferenceType

-	 *            the type of preference to store. It must be a value defined in {@link PreferenceConstantHelper}

-	 * @return the key for the element of a diagram

-	 */

-	public static String getCompartmentElementConstant(String elementName, String compartmentName, int preferenceType) {

-		String tmp = getElementConstant(elementName, preferenceType);

-		return tmp.replaceFirst("\\.", "_" + compartmentName + "."); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

-	}

-

-	/**

-	 *

-	 *

-	 * @param elementName

-	 *            diagramKind+'_'+element

-	 * @param labelRole

-	 *            he role of the label

-	 * @param preferenceType

-	 *            the type of preference to store. It must be a value defined in {@link PreferenceConstantHelper}

-	 * @return the key for the element of a diagram

-	 */

-	public static String getLabelElementConstant(String elementName, String labelRole, int preferenceType) {

-		String tmp = getElementConstant(elementName, preferenceType);

-		return tmp.replaceFirst("\\.", "_" + labelRole + "."); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

-	}

-

-	/**

-	 *

-	 * @param preferenceType

-	 *            the type of preference to store. It must be a value defined in {@link PreferenceConstantHelper}

-	 * @return get the preference key at the papyrus editor level

-	 */

-	public static String getPapyrusEditorConstant(int preferenceType) {

-		return getConstant(PAPYRUS_EDITOR_PREFERENCE_PREFIX, preferenceType);

-	}

-

-	/**

-	 *

-	 * @param diagramKind

-	 *            the kind of diagram.

-	 * @param preferenceType

-	 *            the type of preference to store. It must be a value defined in {@link PreferenceConstantHelper}

-	 * @return the preference key at the diagram level

-	 */

-	public static String getDiagramConstant(String diagramKind, int preferenceType) {

-		return DIAGRAM_PREFERENCE_PREFIX + getConstant(diagramKind, preferenceType);

-	}

-

-}

+/*****************************************************************************
+ * Copyright (c) 2013 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:
+ *
+ *		CEA LIST - Initial API and implementation
+ *		Fanch Bonnabesse (ALL4TEC) fanch.bonnabesse@alltec.net - Bug 419357
+ *
+ *****************************************************************************/
+package org.eclipse.papyrus.infra.gmfdiag.common.preferences;
+
+import org.eclipse.gmf.runtime.diagram.ui.internal.properties.WorkspaceViewerProperties;
+
+
+
+/**
+ * <p>
+ * A class that defines the available preference type available through Papyrus.
+ * </p>
+ * <p>
+ * It defines the following type:
+ * </p>
+ * <ul>
+ * <li>COLOR_FILL</li>
+ * <li>FONT</li>
+ * <li>COLOR_FONT</li>
+ * <li>COLOR_LINE</li>
+ * <li>COLOR_GRADIENT</li>
+ * <li>GRADIENT_POLICY</li>
+ * <li>JUMPLINK_STATUS</li>
+ * <li>JUMPLINK_REVERSE</li>
+ * <li>JUMPLINK_TYPE</li>
+ * <li>ROUTING_POLICY_DISTANCE</li>
+ * <li>ROUTING_POLICY_OBSTRUCTION</li>
+ * <li>ROUTING_STYLE</li>
+ * <li>SMOOTHNESS</li>
+ * </ul>
+ * <p>
+ * It also helps to retrieve the string used to store the preference type for a given element.
+ * </p>
+ *
+ */
+@SuppressWarnings("restriction")
+public class PreferencesConstantsHelper {
+
+	/**
+	 * Prefix for preference for Papyrus Level editor
+	 */
+	public final static String PAPYRUS_EDITOR_PREFERENCE_PREFIX = "PAPYRUS_EDITOR"; //$NON-NLS-1$
+
+	/**
+	 * Prefix for preference for Diagram Level
+	 */
+	public final static String DIAGRAM_PREFERENCE_PREFIX = "DIAGRAM_"; //$NON-NLS-1$
+
+	/**
+	 * Prefix for preference for element Level
+	 */
+	public final static String DIAGRAM_ELEMENT = "ELEMENT_"; //$NON-NLS-1$
+
+	private final static String COLOR = "color."; //$NON-NLS-1$
+
+	private final static String GRADIENT = "gradient"; //$NON-NLS-1$
+
+	private final static String POLICY = ".policy"; //$NON-NLS-1$
+
+	private final static String JUMPLINK = "jumplink."; //$NON-NLS-1$
+
+	private final static String ROUTING = "routing"; //$NON-NLS-1$
+
+	private final static String ROUTING_POLICY = ROUTING + POLICY;
+
+	private final static String COLOR_FILL_CONSTANT = COLOR + "fill"; //$NON-NLS-1$
+
+	private final static String FONT_CONSTANT = "font"; //$NON-NLS-1$
+
+	private final static String COLOR_FONT_CONSTANT = COLOR + FONT_CONSTANT;
+
+	private final static String COLOR_LINE_CONSTANT = COLOR + "line"; //$NON-NLS-1$
+
+	private final static String COLOR_GRADIENT_CONSTANT = COLOR + GRADIENT;
+
+	private final static String GRADIENT_POLICY_CONSTANT = GRADIENT + POLICY;
+
+	private final static String JUMPLINK_STATUS_CONSTANT = JUMPLINK + "status"; //$NON-NLS-1$
+
+	private final static String JUMPLINK_REVERSE_CONSTANT = JUMPLINK + "reverse"; //$NON-NLS-1$
+
+	private final static String JUMPLINK_TYPE_CONSTANT = JUMPLINK + "type"; //$NON-NLS-1$
+
+	private final static String ROUTING_POLICY_DISTANCE_CONSTANT = ROUTING_POLICY + ".distance"; //$NON-NLS-1$
+
+	private final static String ROUTING_POLICY_OBSTRUCTION_CONSTANT = ROUTING_POLICY + ".obstruction"; //$NON-NLS-1$
+
+	private final static String ROUTING_STYLE_CONSTANT = ROUTING + ".style"; //$NON-NLS-1$
+
+	private final static String SMOOTHNESS_CONSTANT = "smoothness"; //$NON-NLS-1$
+
+	private final static String SHADOW_CONSTANT = "shadow"; //$NON-NLS-1$
+
+	private final static String ELEMENTICON_CONSTANT = "elementicon"; //$NON-NLS-1$
+
+	private final static String QUALIFIEDNAME_CONSTANT = "qualifiedname"; //$NON-NLS-1$
+
+	private final static String HEIGHT_CONSTANT = "height";//$NON-NLS-1$
+
+	private final static String WIDTH_CONSTANT = "width"; //$NON-NLS-1$
+
+	private final static String COMPARTMENT_VISIBILITY_CONSTANT = "compartment.visibility"; //$NON-NLS-1$
+
+	private final static String COMPARTMENT_NAME_VISIBILITY_CONSTANT = "compartment_name.visibility"; //$NON-NLS-1$
+
+	private final static String LABEL_VISIBILITY_CONSTANT = "label.visibility"; //$NON-NLS-1$
+
+	private final static String LOCATION_X_CONSTANT = "location_x";//$NON-NLS-1$
+
+	private final static String LOCATION_Y_CONSTANT = "location_y"; //$NON-NLS-1$
+
+	public final static String VIEW_RULERS_CONSTANT = WorkspaceViewerProperties.VIEWRULERS;
+
+	public final static String VIEW_GRID_CONSTANT = WorkspaceViewerProperties.VIEWGRID;
+
+	public final static String RULER_UNITS_CONSTANT = WorkspaceViewerProperties.RULERUNIT;
+
+	public final static String SNAP_TO_GRID_CONSTANT = WorkspaceViewerProperties.SNAPTOGRID;
+
+	public final static String SNAP_TO_GEOMETRY_CONSTANT = WorkspaceViewerProperties.SNAPTOGEOMETRY;
+
+	public final static String GRID_LINE_COLOR_CONSTANT = WorkspaceViewerProperties.GRIDLINECOLOR;
+
+	public final static String GRID_SPACING_CONSTANT = WorkspaceViewerProperties.GRIDSPACING;
+
+	public final static String GRID_ORDER_CONSTANT = WorkspaceViewerProperties.GRIDORDER;
+
+	public final static String GRID_LINE_STYLE_CONSTANT = WorkspaceViewerProperties.GRIDLINESTYLE;
+
+	public final static String VIEW_PAGE_BREAK_CONSTANT = WorkspaceViewerProperties.VIEWPAGEBREAKS;
+
+	public final static String DRAW_CONNECTION_POINT_CONSTANT = "drawConnectionPoint"; //$NON-NLS-1$
+
+	public final static String INVERT_BINDING_FOR_DEFAULT_RESIZE_AND_CONSTRAINED_RESIZE_CONSTANT = "invertBindingForDefaultResizeAndConstrainedResize"; //$NON-NLS-1$
+
+	public final static String RESTORE_LINK_ELEMENT_CONSTANT = "restoreLinkElement"; //$NON-NLS-1$
+
+	/**
+	 * A preference of type COLOR FILL
+	 */
+	public final static int COLOR_FILL = 0;
+
+	/**
+	 * A preference of type FONT
+	 */
+	public final static int FONT = COLOR_FILL + 1;
+
+	/**
+	 * A preference of type COLOR FONT
+	 */
+	public final static int COLOR_FONT = FONT + 1;
+
+	/**
+	 * A preference of type COLOR LINE
+	 */
+	public final static int COLOR_LINE = COLOR_FONT + 1;
+
+	/**
+	 * A preference of type COLOR GRADIENT
+	 */
+	public final static int COLOR_GRADIENT = COLOR_LINE + 1;
+
+	/**
+	 * A preference of type GRADIENT POLICY
+	 */
+	public final static int GRADIENT_POLICY = COLOR_GRADIENT + 1;
+
+	/**
+	 * A preference of type JUMPLINK STATUS
+	 */
+	public final static int JUMPLINK_STATUS = GRADIENT_POLICY + 1;
+
+	/**
+	 * A preference of type JUMPLINK REVERSE
+	 */
+	public final static int JUMPLINK_REVERSE = JUMPLINK_STATUS + 1;
+
+	/**
+	 * A preference of type JUMPLINK TYPE
+	 */
+	public final static int JUMPLINK_TYPE = JUMPLINK_REVERSE + 1;
+
+	/**
+	 * A preference of type ROUTING POLICY DISTANCE
+	 */
+	public final static int ROUTING_POLICY_DISTANCE = JUMPLINK_TYPE + 1;
+
+	/**
+	 * A preference of type ROUTING POLICY OBSTRUCTION
+	 */
+	public final static int ROUTING_POLICY_OBSTRUCTION = ROUTING_POLICY_DISTANCE + 1;
+
+	/**
+	 * A preference of type ROUTING STYLE
+	 */
+	public final static int ROUTING_STYLE = ROUTING_POLICY_OBSTRUCTION + 1;
+
+	/**
+	 * A preference of type SMOOTHNESS
+	 */
+	public final static int SMOOTHNESS = ROUTING_STYLE + 1;
+
+	/**
+	 * A preference of type Shadow
+	 */
+	public final static int SHADOW = SMOOTHNESS + 1;
+
+	/**
+	 * A preference of type elementIcon
+	 */
+	public final static int ELEMENTICON = SHADOW + 1;
+
+	/**
+	 * A preference of type QualifiedName
+	 */
+	public final static int QUALIFIEDNAME = ELEMENTICON + 1;
+
+	/**
+	 * A preference of type height
+	 */
+	public static final int HEIGHT = QUALIFIEDNAME + 1;
+
+	/**
+	 * A preference of type width
+	 */
+	public static final int WIDTH = HEIGHT + 1;
+
+	/**
+	 * A preference of type compartment visibility
+	 */
+	public static final int COMPARTMENT_VISIBILITY = WIDTH + 1;
+
+	/**
+	 * A preference of type compartment visibility
+	 */
+	public static final int COMPARTMENT_NAME_VISIBILITY = COMPARTMENT_VISIBILITY + 1;
+
+	/**
+	 * A preference of type label visibility
+	 */
+	public static final int LABEL_VISIBILITY = COMPARTMENT_NAME_VISIBILITY + 1;
+
+	/**
+	 * A preference for label default location
+	 */
+	public static final int LOCATION_X = LABEL_VISIBILITY + 1;
+
+	/**
+	 * A preference for label default location
+	 */
+	public static final int LOCATION_Y = LOCATION_X + 1;
+
+	/**
+	 * A preference to diplay or not the rulers
+	 */
+	public static final int VIEW_RULER = LOCATION_Y + 1;
+
+	/**
+	 * A preference to diplay or not the grid
+	 */
+
+	public static final int VIEW_GRID = VIEW_RULER + 1;
+
+	/**
+	 * A preference to change the ruler unit
+	 */
+
+	public static final int RULER_UNITS = VIEW_GRID + 1;
+
+	/**
+	 * A preference to snap the created element to the grid
+	 */
+	public static final int SNAP_TO_GRID = RULER_UNITS + 1;
+
+	/**
+	 * A preference to snap the created element to the shape
+	 */
+	public static final int SNAP_TO_GEOMETRY = SNAP_TO_GRID + 1;
+
+	/**
+	 * A preference to change the grid color
+	 */
+	public static final int GRID_LINE_COLOR = SNAP_TO_GEOMETRY + 1;
+
+	/**
+	 * A preference to change the grid spacing
+	 */
+	public static final int GRID_SPACING = GRID_LINE_COLOR + 1;
+
+	/**
+	 * A preference to change the Z order of the Grid
+	 */
+	public static final int GRID_ORDER = GRID_SPACING + 1;
+
+	/**
+	 * A preference to change the style of the grid
+	 */
+	public static final int GRID_LINE_STYLE = GRID_ORDER + 1;
+
+	/**
+	 * A preference to view the page break on the diagram
+	 */
+	public static final int VIEW_PAGE_BREAK = GRID_LINE_STYLE + 1;
+
+	/**
+	 * A preference to draw big point when 2 links have a common part
+	 */
+	public static final int DRAW_CONNECTION_POINT = VIEW_PAGE_BREAK + 1;
+
+	/**
+	 * A Papyrus preference to define the if the default resize action is constrained or not.
+	 * if the preference is <code>false</code>
+	 * <ul>
+	 * <li>default resize is not constraint</li>
+	 * <li>resize + SHIFT is constrained</li>
+	 * </ul>
+	 */
+	public static final int INVERT_BINDING_FOR_DEFAULT_RESIZE_AND_CONSTRAINED_RESIZE = DRAW_CONNECTION_POINT + 1;
+
+	/**
+	 * A preference to indicate if the link element must be restore or not
+	 */
+	public static final int RESTORE_LINK_ELEMENT = INVERT_BINDING_FOR_DEFAULT_RESIZE_AND_CONSTRAINED_RESIZE + 1;
+
+	/**
+	 * Get the preference constant used to store the preference of an element.
+	 *
+	 * @param elementName
+	 *            the name of the element
+	 * @param preferenceType
+	 *            the type of preference to store. It must be a value defined in {@link PreferenceConstantHelper}
+	 * @return the constant used.
+	 */
+	public static String getConstant(String elementName, int preferenceType) {
+		StringBuffer sb = new StringBuffer();
+		sb.append(elementName);
+		sb.append("."); //$NON-NLS-1$
+
+		switch (preferenceType) {
+		case COLOR_FILL:
+			sb.append(COLOR_FILL_CONSTANT);
+			break;
+		case FONT:
+			sb.append(FONT_CONSTANT);
+			break;
+		case COLOR_FONT:
+			sb.append(COLOR_FONT_CONSTANT);
+			break;
+		case COLOR_LINE:
+			sb.append(COLOR_LINE_CONSTANT);
+			break;
+		case COLOR_GRADIENT:
+			sb.append(COLOR_GRADIENT_CONSTANT);
+			break;
+		case GRADIENT_POLICY:
+			sb.append(GRADIENT_POLICY_CONSTANT);
+			break;
+		case JUMPLINK_STATUS:
+			sb.append(JUMPLINK_STATUS_CONSTANT);
+			break;
+		case JUMPLINK_REVERSE:
+			sb.append(JUMPLINK_REVERSE_CONSTANT);
+			break;
+		case JUMPLINK_TYPE:
+			sb.append(JUMPLINK_TYPE_CONSTANT);
+			break;
+		case ROUTING_POLICY_DISTANCE:
+			sb.append(ROUTING_POLICY_DISTANCE_CONSTANT);
+			break;
+		case ROUTING_POLICY_OBSTRUCTION:
+			sb.append(ROUTING_POLICY_OBSTRUCTION_CONSTANT);
+			break;
+		case ROUTING_STYLE:
+			sb.append(ROUTING_STYLE_CONSTANT);
+			break;
+		case SMOOTHNESS:
+			sb.append(SMOOTHNESS_CONSTANT);
+			break;
+		case SHADOW:
+			sb.append(SHADOW_CONSTANT);
+			break;
+		case ELEMENTICON:
+			sb.append(ELEMENTICON_CONSTANT);
+			break;
+		case QUALIFIEDNAME:
+			sb.append(QUALIFIEDNAME_CONSTANT);
+			break;
+		case HEIGHT:
+			sb.append(HEIGHT_CONSTANT);
+			break;
+		case WIDTH:
+			sb.append(WIDTH_CONSTANT);
+			break;
+		case COMPARTMENT_VISIBILITY:
+			sb.append(COMPARTMENT_VISIBILITY_CONSTANT);
+			break;
+		case COMPARTMENT_NAME_VISIBILITY:
+			sb.append(COMPARTMENT_NAME_VISIBILITY_CONSTANT);
+			break;
+		case LABEL_VISIBILITY:
+			sb.append(LABEL_VISIBILITY_CONSTANT);
+			break;
+		case LOCATION_X:
+			sb.append(LOCATION_X_CONSTANT);
+			break;
+		case LOCATION_Y:
+			sb.append(LOCATION_Y_CONSTANT);
+			break;
+		case VIEW_RULER:
+			sb.append(VIEW_RULERS_CONSTANT);
+			break;
+		case VIEW_GRID:
+			sb.append(VIEW_GRID_CONSTANT);
+			break;
+		case RULER_UNITS:
+			sb.append(RULER_UNITS_CONSTANT);
+			break;
+		case SNAP_TO_GRID:
+			sb.append(SNAP_TO_GRID_CONSTANT);
+			break;
+		case SNAP_TO_GEOMETRY:
+			sb.append(SNAP_TO_GEOMETRY_CONSTANT);
+			break;
+		case GRID_LINE_COLOR:
+			sb.append(GRID_LINE_COLOR_CONSTANT);
+			break;
+		case GRID_SPACING:
+			sb.append(GRID_SPACING_CONSTANT);
+			break;
+		case GRID_ORDER:
+			sb.append(GRID_ORDER_CONSTANT);
+			break;
+		case GRID_LINE_STYLE:
+			sb.append(GRID_LINE_STYLE_CONSTANT);
+			break;
+		case VIEW_PAGE_BREAK:
+			sb.append(VIEW_PAGE_BREAK_CONSTANT);
+			break;
+		case RESTORE_LINK_ELEMENT:
+			sb.append(RESTORE_LINK_ELEMENT_CONSTANT);
+			break;
+		default:
+			break;
+		}
+
+		return sb.toString();
+	}
+
+	/**
+	 *
+	 * @param elementName
+	 *            diagramKind+'_'+element
+	 * @param preferenceType
+	 *            the type of preference to store. It must be a value defined in {@link PreferenceConstantHelper}
+	 * @return the key for the element of a diagram
+	 */
+	public static String getElementConstant(String elementName, int preferenceType) {
+		return DIAGRAM_ELEMENT + getConstant(elementName, preferenceType);
+	}
+
+	/**
+	 *
+	 * @param elementName
+	 *            diagramKind+'_'+element
+	 * @param compartmentName
+	 *            the compartment name
+	 * @param preferenceType
+	 *            the type of preference to store. It must be a value defined in {@link PreferenceConstantHelper}
+	 * @return the key for the element of a diagram
+	 */
+	public static String getCompartmentElementConstant(String elementName, String compartmentName, int preferenceType) {
+		String tmp = getElementConstant(elementName, preferenceType);
+		return tmp.replaceFirst("\\.", "_" + compartmentName + "."); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	}
+
+	/**
+	 *
+	 *
+	 * @param elementName
+	 *            diagramKind+'_'+element
+	 * @param labelRole
+	 *            he role of the label
+	 * @param preferenceType
+	 *            the type of preference to store. It must be a value defined in {@link PreferenceConstantHelper}
+	 * @return the key for the element of a diagram
+	 */
+	public static String getLabelElementConstant(String elementName, String labelRole, int preferenceType) {
+		String tmp = getElementConstant(elementName, preferenceType);
+		return tmp.replaceFirst("\\.", "_" + labelRole + "."); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	}
+
+	/**
+	 *
+	 * @param preferenceType
+	 *            the type of preference to store. It must be a value defined in {@link PreferenceConstantHelper}
+	 * @return get the preference key at the papyrus editor level
+	 */
+	public static String getPapyrusEditorConstant(int preferenceType) {
+		return getConstant(PAPYRUS_EDITOR_PREFERENCE_PREFIX, preferenceType);
+	}
+
+	/**
+	 *
+	 * @param diagramKind
+	 *            the kind of diagram.
+	 * @param preferenceType
+	 *            the type of preference to store. It must be a value defined in {@link PreferenceConstantHelper}
+	 * @return the preference key at the diagram level
+	 */
+	public static String getDiagramConstant(String diagramKind, int preferenceType) {
+		return DIAGRAM_PREFERENCE_PREFIX + getConstant(diagramKind, preferenceType);
+	}
+
+}