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User is not allowed to expand the canvas area (Read 3045 times)

Saroj Kumar Sahu YaBB Newbies Offline I Love MindFusion! Posts: 3 Joined: Jun 4^th, 2013	User is not allowed to expand the canvas area Jun 4^th, 2013 at 7:00am	Print Post
	Hi, I am relatively new to diagramming in Mind Fusion and I'm using version3.0. Can anyone tell me how to make automatic scrolling while user simple select the canvas and move the mouse(this is possible in version 2.0.) I'm able to scroll while dragging item with the mouse. Thanks.


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: User is not allowed to expand the canvas area Reply #1 - Jun 4^th, 2013 at 7:20am	Print Post
	Hi, Scrolling by dragging the canvas can be done by setting Behavior = Pan or by holding down the ALT key. Expanding the canvas area will work only when dragging items or drawing selection rectangles, if the AutoResize property is enabled. I hope that helps, Stoyan


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Saroj Kumar Sahu YaBB Newbies Offline I Love MindFusion! Posts: 3 Joined: Jun 4^th, 2013	Re: User is not allowed to expand the canvas area Reply #2 - Jun 4^th, 2013 at 8:39am	Print Post
	Hello sir, Thanks for your quick reply. Expanding the canvas area is working only when dragging items but Expanding the canvas area with drawing selection rectangles is not working for me. Behavior = Behavior.Modify; when i comment this behavior then its working. can you plz tell me why its happening . Thanks
	« Last Edit: Jun 4^th, 2013 at 11:57am by Saroj Kumar Sahu »

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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: User is not allowed to expand the canvas area Reply #3 - Jun 4^th, 2013 at 11:26am	Print Post
	Hi, Actually AutoResize while drawing new selection is no longer supported, because people complained about it - http://mindfusion.eu/Forum/YaBB.pl?num=1260855648/8#8 Now you get only auto-scrolling for the selection rectangle. If you need to resize, you could set diagram.Bounds to the union of diagram's and selection.Bounds, e.g. from the OnMouseMove override of a custom behavior class. I hope that helps, Stoyan


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Saroj Kumar Sahu YaBB Newbies Offline I Love MindFusion! Posts: 3 Joined: Jun 4^th, 2013	Re: User is not allowed to expand the canvas area Reply #4 - Jun 4^th, 2013 at 12:08pm	Print Post
	Hi, Thanks for reply again. so basically its not possible to Expanding the canvas area with drawing selection rectangles without custom class. and you said that If you need to resize, you could set diagram.Bounds to the union of diagram's and selection.Bounds, e.g. from the OnMouseMove override of a custom behavior class.can you tell me how to do that (how to set diagram.Bounds to the union of diagram's and selection.Bounds) ? thanks


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: User is not allowed to expand the canvas area Reply #5 - Jun 4^th, 2013 at 2:01pm	Print Post
	Hi, If you were using say the standard Modify behavior, now replace it with this custom class instead: Code diagram.CustomBehavior = new MyModifyBehavior(diagram); class MyModifyBehavior : ModifyBehavior { protected internal MyModifyBehavior(Diagram diagram) : base(diagram) { } protected override void OnMouseMove(Point mousePosition) { base.OnMouseMove(mousePosition); if (Diagram.Interaction != null && Diagram.Interaction.CurrentItem is Selection && Diagram.Interaction.Action == Action.Create) { if (!Diagram.Bounds.Contains(Diagram.Selection.Bounds)) { var r = Diagram.Bounds; r.Union(Diagram.Selection.Bounds); Diagram.Bounds = r; } } } } I hope that helps, Stoyan


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