How do I select a DSL shape via API

Wed, 01 Jul 2009 13:53:34 Z

Hi All

I want select particular Shape programmatically...

public void SelectShape(ModelElement modelElement)

{

ShapeElement modelElementShape = PresentationViewsSubject .GetPresentation(modelElement).FirstOrDefault() as ShapeElement ;

Diagram diagram = modelElement.Store.ElementDirectory.AllElements.OfType<Diagram >().FirstOrDefault();

DiagramItem diagramItem = new DiagramItem (modelElementShape);

diagram.ActiveDiagramView.Selection.Set(diagramItem);

}

but diagram.ActiveDiagramView value is null ..

what is wrong with my code?

Thank You

Atul Katare

_____________________________

Build Relationship Dynamically

How do I select a DSL shape via API

Wed, 01 Jul 2009 22:26:30 Z

Hi Atul,

could you please provide some additional information, especially with respect to the context you are invoking this method from and your general porpuse? I tried to reproduce the issue and diagram.ActiveDiagramView returned the correct object.

Kind regards
Sebastian

How do I select a DSL shape via API

Thu, 02 Jul 2009 05:10:55 Z

Hi Sebastian

I will get Model Element using

            Store store = new Store(typeof(CoreDomainModel), typeof(CoreDesignSurfaceDomainModel),
                                                                           typeof(ExampleDomainModel));
            using (Transaction txtTransaction = store.TransactionManager.BeginTransaction("Root Transaction"))
            {
                ExampleModel ExampleRoot = ExampleSerializationHelper.Instance.LoadModelAndDiagram
                                                (store, FilePath, FilePath + ".diagram", null, null);


   ModelElement modelElement= ExampleRoot .ExampleElement.First();

             // then I will call SelectShape Method

             Selectshape(modelElement);

                txtTransaction .Commit();
            }

public void SelectShape(ModelElement modelElement)

{

ShapeElement modelElementShape = PresentationViewsSubject .GetPresentation(modelElement).FirstOrDefault() as ShapeElement ;

Diagram diagram = modelElement.Store.ElementDirectory.AllElements.OfType<Diagram >().FirstOrDefault();

DiagramItem diagramItem = new DiagramItem (modelElementShape);

diagram.ActiveDiagramView.Selection.Set(diagramItem);

}

Thank You

AtulKatare
_________________________________
Build Relationship Dynamically

How do I select a DSL shape via API

Thu, 02 Jul 2009 12:19:21 Z

Hello, you are opening a model into a new Store, so this Store doesn't have the current active diagram view. I think if you take from the commandset the current opened store and then you get the active diagram view from the diagram, this object wouldn't be null. Regards!!

RubenBrenes

How do I select a DSL shape via API

Thu, 02 Jul 2009 14:11:07 Z

Hi Ruben

How to get Store from CommandSet class?
CommandSet class constructor require IServiceProvider, how to pass value?

Thank You..

How do I select a DSL shape via API

Thu, 02 Jul 2009 15:33:49 Z

Hello, DslTools generate a CommandSet class in your DslPackage that you can extend with your own commands. I suppose you want to select the shape responding to some command action. So there, in YourLanguageCommandSet, you can get Store by this.CurrentDocData.Store. Regards!!

RubenBrenes

How do I select a DSL shape via API

Wed, 08 Jul 2009 13:41:05 Z

Dude, you should not create a new store for this requirement.

Instead, here you go!

1. Go to your DSL Package
2. Create a partial class for your CommandSet
3. Write a new method, let the name to be what ever you want
4. Write your logic based on this.

I'll give you a sample piece of code for select all command which will work directly for you.

namespace YourNameSpace
{
    /// <summary>
    /// Partial implementation provides the status and command
    /// handlers for Select All Menu
    /// </summary>
    internal partial class YourCommandSet
    {
        /// <summary>
        /// Handler for select all
        /// </summary>
        /// <param name="sender">the object that invokes the method as object</param>
        /// <param name="e">event arguments as EventArgs</param>
        protected override void ProcessOnMenuSelectAllCommand()
        {

            base.ProcessOnMenuSelectAllCommand();

            List<ShapeElement> lstSelectableElements = this.GetSelectableElements()
                ?? new List<ShapeElement>();

            foreach (ShapeElement oShape in lstSelectableElements)
            {
                if (oShape.ModelElement != null)
                {
                    DiagramItem diagramItem = new DiagramItem(oShape);
                    if (this.CurrentYourModelDocView!= null
                        && this.CurrentYourModelDocView.Diagram != null
                        && this.CurrentYourModelDocView.Diagram.ActiveDiagramView != null
                        && this.CurrentYourModelDocView.Diagram.ActiveDiagramView.DiagramClientView != null)
                    {                        
                        this.CurrentYourModelDocView.Diagram.ActiveDiagramView.DiagramClientView.Selection.Add(diagramItem);
                    }
                }
            }


            this.CurrentDocView.SetSelectedComponents(lstSelectableElements);

        }
        /// <summary>
        /// Status handler for select all
        /// </summary>
        /// <param name="command">command invokes the method</param>
        protected override void ProcessOnStatusSelectAllCommand(MenuCommand command)
        {

            base.ProcessOnStatusSelectAllCommand(command);

            List<ShapeElement> lstSelectableElements = this.GetSelectableElements()
                ?? new List<ShapeElement>();

            command.Enabled = lstSelectableElements.Count > 0;
        }

        /// <summary>
        /// Gets the list of the selectable elements
        /// </summary>
        /// <returns>gets the list of the selectable shape elements as generic collection of shape element</returns>
        private List<ShapeElement> GetSelectableElements()
        {

            ReadOnlyCollection<ShapeElement> lstShapeElements = null;
            List<ShapeElement> lstSelectableElements = null;
            Store oStore = null;

            oStore = this.CurrentYourModelDocView.Diagram.Store;

            lstShapeElements = oStore.ElementDirectory.FindElements<ShapeElement>(true);
            lstShapeElements = lstShapeElements ?? new ReadOnlyCollection<ShapeElement>(new List<ShapeElement>());

            lstSelectableElements = (from shape in lstShapeElements
                                     where shape is NodeShape
                                     select shape).ToList();

            return lstSelectableElements;
        }
    }
}

Try this; You have everything selected on Select All (Ctl + A)

--Kiran Chand Palakkattiri--
kiran.chand@live.in