Please come in, maybe this is a bug - Diagramming Components

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Please come in, maybe this is a bug (Read 3358 times)

CanadaProgrammer Full Member Offline I love YaBB 1G - SP1! Posts: 113 Joined: Jun 30^th, 2011	Please come in, maybe this is a bug Jul 31^st, 2012 at 11:16pm	Print Post
	There 2 buttons, A and B. The click event of A is to append a ShapeNode to a diagram The click event of B is call the method ResizeToFitItems of Diagram, You will find location of the shape is changed. why???


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Please come in, maybe this is a bug Reply #1 - Aug 1^st, 2012 at 6:50am	Print Post
	The on-screen location of all nodes might change if the diagram's origin changes and it's no longer in the view's current scroll range, e.g. if the new node is the left-most or top-most in the diagram and you call ResizeToFitItems. If you allow the diagram to only grow this shouldn't happen - instead of calling the Resize method, set diagram.Bounds to the union of current Bounds value and diagram.GetContentBounds(). I hope that helps, Stoyan


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CanadaProgrammer Full Member Offline I love YaBB 1G - SP1! Posts: 113 Joined: Jun 30^th, 2011	Re: Please come in, maybe this is a bug Reply #2 - Aug 2^nd, 2012 at 12:37am	Print Post
	Looks it can work, but I still have a question. Let's call method GetContentBounds like below: RectangleF rectContent = this.diagram1.GetContentBounds(false, false); In my case, the value of rectContent.X is -2, and the value of rectContent.Y is -2. but diagram.Bounds.Location.X is 0, diagram.Bounds.Location.Y is 0. Why can method GetContentBounds return (-2, -2) ?


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CanadaProgrammer Full Member Offline I love YaBB 1G - SP1! Posts: 113 Joined: Jun 30^th, 2011	Re: Please come in, maybe this is a bug Reply #3 - Aug 2^nd, 2012 at 12:41am	Print Post
	By the way, the whole node is visible on diagram completely, i mean every point that contained by the node is on client area of diagram and is visible


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CanadaProgrammer Full Member Offline I love YaBB 1G - SP1! Posts: 113 Joined: Jun 30^th, 2011	Re: Please come in, maybe this is a bug Reply #4 - Aug 2^nd, 2012 at 2:08am	Print Post
	In my case, I click button A to add a node, then click button B to call then method. do nothing between clicking button A and clicking button B


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Please come in, maybe this is a bug Reply #5 - Aug 2^nd, 2012 at 6:25am	Print Post
	CanadaProgrammer wrote on Aug 2^nd, 2012 at 12:37am: Looks it can work, but I still have a question. Let's call method GetContentBounds like below: RectangleF rectContent = this.diagram1.GetContentBounds(false, false); In my case, the value of rectContent.X is -2, and the value of rectContent.Y is -2. but diagram.Bounds.Location.X is 0, diagram.Bounds.Location.Y is 0. Why can method GetContentBounds return (-2, -2) ? GetContentBounds returns the union of GetRepaintRect() results. GetRepaintRect adds AdjustmentHandlesSize to the node's Bounds so that selection handles are included too in the diagram/repaint area. If you don't wish to include them, just create the union of Bounds of all items.


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