Diagram OnMouseWheel event - Diagramming Components - JavaScript

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Diagram OnMouseWheel event (Read 9759 times)

henry k Junior Member Offline I Love MindFusion! Posts: 51 Location: Finland Joined: Apr 4^th, 2012	Diagram OnMouseWheel event May 4^th, 2012 at 12:35pm	Print Post
	Hi, Is there possibility to catch mouseWheel event on diagram? (in JavaApplet mode) And yes, this is Zooming function related Br. Henry


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Diagram OnMouseWheel event Reply #1 - May 7^th, 2012 at 7:19am	Print Post
	Hi, This version adds MouseWheelScript: https://mindfusion.eu/_temp/netdiag_mousewheel.zip You could handle it like this: Code <ndiag:DiagramView runat="server" MouseWheelScript="onMouseWheelMoved" ... function onMouseWheelMoved(sender, args) { var applet = <%= diagramView.AppletElement %>; var diagramView = applet.getDiagramView(); var oldZoom = diagramView.getZoomFactor(); var newZoom = oldZoom - args.getWheelRotation(); diagramView.setZoomFactor(newZoom); } Do not name your handler just "onMouseWheel" - this did not work in Internet Explorer for some reason. Perhaps it has a built-in Window.onMouseWheel function which stops the control from calling your custom onMouseWheel. Other names, e.g. onMouseWheelMoved, work fine. The type of args is the standard Java MouseWheelEvent class. I hope that helps, Stoyan


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henry k Junior Member Offline I Love MindFusion! Posts: 51 Location: Finland Joined: Apr 4^th, 2012	Re: Diagram OnMouseWheel event Reply #2 - May 7^th, 2012 at 7:50am	Print Post
	was unable to find MouseWheelScript propery from DiagramView... and as result onMouseWheelMoved functions was not fired... Using sampleing of 4.2 NetDiagram: - MindFusion.Diagramming.dll { 1756KB; Ver.5.8.0.22763; Created 9.3.2012 16:11 (do not know if date is created from of build or unpacking of installer) }


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Diagram OnMouseWheel event Reply #3 - May 7^th, 2012 at 8:19am	Print Post
	Did you overwrite the assemblies referenced by your project with the ones from the zip file?


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henry k Junior Member Offline I Love MindFusion! Posts: 51 Location: Finland Joined: Apr 4^th, 2012	Re: Diagram OnMouseWheel event Reply #4 - May 7^th, 2012 at 10:15am	Print Post
	Stoyo wrote on May 7^th, 2012 at 8:19am: Did you overwrite the assemblies referenced by your project with the ones from the zip file? No (Highly doubt it)... as it's the only property missing so far... Also I looked at the samples that were installed to Program Files -directory... none of those contained MouseWheel property in <DiagramView /> as nether in <Diagram />. Br. Henry


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Diagram OnMouseWheel event Reply #5 - May 7^th, 2012 at 11:17am	Print Post
	Please take a look at my first reply again - it contains a link to a zip file. Unzip it and overwrite the dll and jar files used in your project. Only then you will have a MouseWheelScript property. I hope that helps, Stoyan


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henry k Junior Member Offline I Love MindFusion! Posts: 51 Location: Finland Joined: Apr 4^th, 2012	Re: Diagram OnMouseWheel event Reply #6 - May 7^th, 2012 at 12:54pm	Print Post
	Stoyo wrote on May 7^th, 2012 at 11:17am: Please take a look at my first reply again - it contains a link to a zip file. Unzip it and overwrite the dll and jar files used in your project. Only then you will have a MouseWheelScript property. I hope that helps, Stoyan Sorry... monday; should have read that more accurately.


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henry k Junior Member Offline I Love MindFusion! Posts: 51 Location: Finland Joined: Apr 4^th, 2012	Re: Diagram OnMouseWheel event Reply #7 - May 8^th, 2012 at 7:36am	Print Post
	Am I missing something. [getZoomFactor()] returns error: property or method doesn't exist. Is some other property or element required for this? btw... the event is fired. Br. Henry


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Diagram OnMouseWheel event Reply #8 - May 8^th, 2012 at 2:38pm	Print Post
	What object are you calling getZoomFactor() on?


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henry k Junior Member Offline I Love MindFusion! Posts: 51 Location: Finland Joined: Apr 4^th, 2012	Re: Diagram OnMouseWheel event Reply #9 - May 9^th, 2012 at 4:41am	Print Post
	You're right. Once again, eyes open Thank you


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