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Normal Topic Moveable Arrow Texts (Read 2071 times)
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Moveable Arrow Texts
Jul 27th, 2007 at 1:54pm
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Hi,

I use the layout algorithms of FlowChart's Pro Edition to arrange the chart layout automatically. After that the user should be in the position to adapt the chart arbitrary. That's reason why, I got the requirement to make arrow texts (without the arrow itself) movable. How can I implement this?
  
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Stoyo
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Re: Moveable Arrow Texts
Reply #1 - Jul 28th, 2007 at 1:15pm
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Hi,

Use an attached box to display the text:

Box label = fc.CreateBox(...);
label.Text = "arrow label";
label.IgnoreLayout = true;
label.Transparent = true;
label.AttachTo(someArrow, AttachToArrow.Segment, 0)

I hope that helps,
Stoyan
  
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Re: Moveable Arrow Texts
Reply #2 - Aug 13th, 2007 at 11:05am
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Hi,

Thanks for the reply!

If I use an attached box for arrow texts the label (box) size will not fit to text size. The corresponding FitSizeToText method remains/consider either width, height or ratio. In fact, all three options cause word-wraps and unfitting sizes (visible by box handlers).

How can I simply resize the attached box to required text size without any restrictions?
  
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Re: Moveable Arrow Texts
Reply #3 - Aug 13th, 2007 at 12:37pm
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Try setting the box size to the result of the FlowChart.MeasureString method.

Stoyan
  
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Re: Moveable Arrow Texts
Reply #4 - Aug 13th, 2007 at 1:21pm
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Thanks a lot, it works!

btw. I didn't found the FlowChart.MeasureString method in documentation. However, I think it would be an easy and intuitive way to provide this function via overridden (parameterless) FitSizeToText method.
Perhaps this issue is obsolete in version 5...
  
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