Hi,

I would like to know if following is possible with WpfDiagram and if yes how to implement :

1) Undo/Redo functionality.
2) Capturing Copy/Paste event.
3) Providing a list/collection (observable collection) as itemsource to the WpfDiagram. How to bind to collection of objects.
4) Get a Compact View that is where the links will be either Horizontal or vertical and the elements will be arranged in such a fashion that they occupy minimum diagram space.
5) A pan button in the toolbar clicking that will take the diagram in panning mode changing the cursor to Hand cursor and allow user to pan with the use of mouse movement (without the use of ctrl key)
6) Is there a concept of current item. For ex. when user selects more than one node then we would like to know in this case which is the current item now so that we can arrange all others in respect to that current item.
7) Can we have HandlesStyle a combination of types i.e. HatchHandles2 + EasyMove.
8 ) Is your model thread safe in case of databinding
9) Do we have support for export to image and can we specify Height, Width, Scale, Quality, Interpolation etc. of the exported image.
10) How can we give minimum Zoom-Out value.
11) Are there any animation classes available to perform animation.
12) Can we have objects on the diagram that do not zoom-in/out with diagram
13) Do we have inbuilt support for zoom on mouse scroll
14) We do not want two links to cross each other and if they happened to be then is there support for bridge links (bridge at intersection point of links) any helper class for this provided and can we customize the bridge appearance.
15) How many types of links and node shapes are supported.
16) Is there support for copy/cut/paste only the nodes of a given diagram not the link.
17) Do we have inbuilt Fit To Content/Fit to Sreen property.
18 ) How to implement an overview window - i.e. we will have two screens first a main screen that will show our diagram with some nodes/links and second an overview window which is a small window and shows the main screen diagram with Fit to content property that is with no scroll bar and that has a rectangular area (that can be moved with mouse over the diagram in this window) moving that rectanglar section will reflect only that part of diagram in main screen diagram.
19) We are using client/server architecture so we will be saving the node/link position/connections and other properties at server side database and then we will be restoring them afterwards. So could you please suggest what would be the best approach regarding the save/load functionality.

Hope to get your reply soon. Can we get a little sample for some of the straight forward features.

Thanks in advance,
Anurodh

6. Yes, that's Diagram.ActiveItem
7. No, but you can set them to Custom and handle the Draw/HitTestHandles events.
9. Diagram.CreateImage(), and you save the image with whatever settings you'd like.
10. Just don't set ZoomFactor to values smaller than your minimum.

16. You will have to (temporarily) remove the links from the selection before calling CopyToClipboard.
17. There are the ResizeToFitItems, ZoomToRect and ZoomToFit methods
18. There's the Overview control...
19. To update the database after modifications done by the user, handle NodeModified and LinkModified, and use Bounds and ControlPoints to get the new items coordinates.

Quote:


That doesn't look like a little sample. We could create a small prototype application for you, for a price:
http://www.mindfusion.eu/services.html

Stoyan

1) Perhaps you could add both the overview and slider to a canvas, and set Diagram.ZoomFactor in response to the slider change.

2) Use the forum's Search function to find the MoveSelection method. Call it in response to keyboard events.

3) link.SnapToNodeBorder = true.

4) node.EnableHandles = Move.

5) You could create groups using the node.AttachTo method.

6) Use the Tag property.

Stoyan

If you mean the view tracking rectangle size, its size depends on the ZoomFactor and the size of the currently visible region of the diagram. The Overview calculates the rectangle size automatically, and you can influence it only by setting ZoomFactor.

Stoyan

Databinding should be available in about two months if we don't meet any considerable difficulties. UI virtualization is not implemented.

Stoyan