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Layouts within layouts (Read 4551 times)

sbailey Junior Member Offline Posts: 61 Location: MD Joined: Apr 24^th, 2009	Layouts within layouts Jun 8^th, 2009 at 2:52pm	Print Post
	Is there any way to do a layout within a layout? I've got a number of boxes which contain tables. The tables in each box arrange themselves beautifully with the tree layout, but the boxes all stack roughly on top of each other after ArrangeDiagram is called. Ideally, what we'd want would be for boxes to be arranged in a tree, with their contents ALSO arranged in trees.

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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Layouts within layouts Reply #1 - Jun 8^th, 2009 at 4:49pm	Print Post
	If you set TreeLayout.Root, ArrangeDiagram will arrange only the nodes that can be reached from the root. You could use that to arrange the children of each container, call container.ResizetoFitChildren, and finally apply TreeLayout on the containers using the KeepGroupLayout property. I hope that helps, Stoyan


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sbailey Junior Member Offline Posts: 61 Location: MD Joined: Apr 24^th, 2009	Re: Layouts within layouts Reply #2 - Jun 9^th, 2009 at 2:36pm	Print Post
	If it were as simple as self-contained trees of tables inside boxes which were connected to one another, I think that would work. However, I think what's preventing it from working is the fact that boxes aren't connected to one another; instead, the connections are between tables inside boxes. This might be something I have to do by hand?

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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Layouts within layouts Reply #3 - Jun 9^th, 2009 at 5:50pm	Print Post
	Try setting IgnoreLayout = true for each link that connects tables in different containers, and only the tree branch inside the container should be arranged when Root is set. If this does not work, I suppose our developer could add an Arrange(layout) method to containers. Stoyan


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sbailey Junior Member Offline Posts: 61 Location: MD Joined: Apr 24^th, 2009	Re: Layouts within layouts Reply #4 - Jun 10^th, 2009 at 7:03pm	Print Post
	The biggest problem is that it seems like boxes that aren't connected to each other remain stacked on top of one another, so doing two layout steps doesn't help. Perhaps I should apply a different layout, like the spring layout, to the boxes? But this layout doesn't have the option to preserve groupings... Another issue I'm running into is that I can't select arrows when they're inside boxes. The boxes seem to absorb the mouse click. Is this a Z-order issue?

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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Layouts within layouts Reply #5 - Jun 10^th, 2009 at 7:24pm	Print Post
	Quote: The biggest problem is that it seems like boxes that aren't connected to each other remain stacked on top of one another, so doing two layout steps doesn't help. If you set TreeLayout.Root, ArrangeDiagram won't move nodes that cannot be reached from the root. Could you save the diagram to xml, and email it to support@mindfusion.eu along with your layout code? Stoyan


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Layouts within layouts Reply #6 - Jun 10^th, 2009 at 7:25pm	Print Post
	Regarding hit-testing and Z order, set the HitTestPriority property to "htpZOrder".


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Layouts within layouts Reply #7 - Jun 11^th, 2009 at 3:58pm	Print Post
	Hi, We have received the files and will send you sample layout code tomorrow. Stoyan


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Layouts within layouts Reply #8 - Jun 12^th, 2009 at 3:01pm	Print Post
	Hi, You can find an example on the private messages page. The layout code runs when you press the Layout button. The zip also includes a flowchartx.dll that fixes how IgnoreLayout is handled by some layout classes. The sample arranges only the children of a container by setting the IgnoreLayout property of all other nodes. That's not very convenient, but it's the only way we found with the current API. There is an Arrange(items) method in the .NET version of the control that can be used to arrange only a part of the items; we'll try to port it to FlowchartX for the next release. Another restriction is that LayeredLayout used in the sample can arrange only a single connected component of a graph. If you have some containers that are not connected to the graph, you will have to add temporary arrows to connect them before running the layout. I hope that helps, Stoyan


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