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package org.eclipse.papyrus.uml.diagram.sequence.edit.helpers;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gef.GraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.LabelEditPart;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.infra.gmfdiag.common.editpolicies.IMaskManagedLabelEditPolicy;
import org.eclipse.papyrus.infra.tools.util.StringHelper;
import org.eclipse.papyrus.uml.diagram.common.helper.StereotypedElementLabelHelper;
import org.eclipse.papyrus.uml.diagram.sequence.util.OperationUtil;
import org.eclipse.papyrus.uml.diagram.sequence.util.SignalUtil;
import org.eclipse.papyrus.uml.tools.utils.ICustomAppearance;
import org.eclipse.papyrus.uml.tools.utils.TypedElementUtil;
import org.eclipse.papyrus.uml.tools.utils.ValueSpecificationUtil;
import org.eclipse.uml2.uml.Message;
import org.eclipse.uml2.uml.NamedElement;
import org.eclipse.uml2.uml.Operation;
import org.eclipse.uml2.uml.Signal;
import org.eclipse.uml2.uml.ValueSpecification;
public class MessageLabelHelper extends StereotypedElementLabelHelper {
public static final Collection<String> DEFAULT_LABEL_DISPLAY = Arrays.asList(ICustomAppearance.DISP_NAME, ICustomAppearance.DISP_PARAMETER_NAME, ICustomAppearance.DISP_PARAMETER_TYPE, ICustomAppearance.DISP_RT_TYPE);
/**
* singelton instance
*/
private static MessageLabelHelper labelHelper;
/** Map for masks */
protected final Map<String, String> masks = new HashMap<String, String>();
protected MessageLabelHelper() {
// initialize the map
masks.put(ICustomAppearance.DISP_VISIBILITY, "Visibility");
masks.put(ICustomAppearance.DISP_NAME, "Name");
masks.put(ICustomAppearance.DISP_PARAMETER_NAME, "Parameters Name");
masks.put(ICustomAppearance.DISP_PARAMETER_DIRECTION, "Parameters Direction");
masks.put(ICustomAppearance.DISP_PARAMETER_TYPE, "Parameters Type");
masks.put(ICustomAppearance.DISP_RT_TYPE, "Return Type");
masks.put(ICustomAppearance.DISP_PARAMETER_MULTIPLICITY, "Parameters Multiplicity");
masks.put(ICustomAppearance.DISP_PARAMETER_DEFAULT, "Parameters Default Value");
masks.put(ICustomAppearance.DISP_DERIVE, "Parameters Value");
masks.put(ICustomAppearance.DISP_PARAMETER_MODIFIERS, "Parameters Modifiers");
masks.put(ICustomAppearance.DISP_MODIFIERS, "Modifiers");
}
/**
* Returns the singleton instance of this class
*
* @return the singleton instance.
*/
public static MessageLabelHelper getInstance() {
if(labelHelper == null) {
labelHelper = new MessageLabelHelper();
}
return labelHelper;
}
@Override
public Message getUMLElement(GraphicalEditPart editPart) {
EObject e = ((View)editPart.getModel()).getElement();
if(e instanceof Message) {
return ((Message)e);
}
return null;
}
@Override
protected String elementLabel(GraphicalEditPart editPart) {
if(editPart instanceof LabelEditPart) {
editPart = (GraphicalEditPart)editPart.getParent();
}
Collection<String> displayValue = DEFAULT_LABEL_DISPLAY;
IMaskManagedLabelEditPolicy policy = (IMaskManagedLabelEditPolicy)editPart.getEditPolicy(IMaskManagedLabelEditPolicy.MASK_MANAGED_LABEL_EDIT_POLICY);
if(policy != null) {
displayValue = policy.getCurrentDisplayValue();
}
Message e = getUMLElement(editPart);
if(e == null) {
return null;
}
NamedElement signature = e.getSignature();
if(signature instanceof Operation) {
return OperationUtil.getCustomLabel(e, (Operation)signature, displayValue);
} else if(signature instanceof Signal) {
return SignalUtil.getCustomLabel(e, (Signal)signature, displayValue);
} else if(signature != null) {
return signature.getName();
}
// signature is null
return getMessageLabel(e, displayValue);
}
private String getMessageLabel(Message message, Collection<String> displayValue) {
StringBuffer buffer = new StringBuffer();
buffer.append(message.getName());
// parameters : '(' parameter-list ')'
EList<ValueSpecification> arguments = message.getArguments();
if(arguments.size() > 0 && (displayValue.contains(ICustomAppearance.DISP_PARAMETER_NAME) || displayValue.contains(ICustomAppearance.DISP_DERIVE))) {
buffer.append("(");
for(int i = 0; i < arguments.size(); i++) {
if(i > 0) {
buffer.append(", ");
}
ValueSpecification arg = arguments.get(i);
//type
if(displayValue.contains(ICustomAppearance.DISP_PARAMETER_TYPE)) {
String type = TypedElementUtil.getTypeAsString(arg);
if(type != null) {
buffer.append(type);
}
}
boolean showEqualMark = false;
// name
if(displayValue.contains(ICustomAppearance.DISP_PARAMETER_NAME)) {
buffer.append(" ");
String name = StringHelper.trimToEmpty(arg.getName());
buffer.append(name);
if(name.trim().length() > 0) {
showEqualMark = true;
}
}
// value
if(displayValue.contains(ICustomAppearance.DISP_DERIVE)) {
String value = ValueSpecificationUtil.getSpecificationValue(arg);
if(value != null) {
if(showEqualMark) {
buffer.append(" = ");
}
buffer.append(value);
}
}
}
buffer.append(")");
}
return buffer.toString();
}
public Map<String, String> getMasks() {
return masks;
}
public Collection<String> getDefaultValue() {
return DEFAULT_LABEL_DISPLAY;
}
}
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