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How to determine text fitment value (Read 1470 times)

Bala Full Member Offline I love YaBB 1G - SP1! Posts: 156 Joined: Apr 21^st, 2009	How to determine text fitment value Jul 18^th, 2011 at 1:48pm	Print Post
	Hi, We create some nodes with fonsize 12 and with a particular shape and textarea - our objective is to try to fit large node text in area by decreasing fontsize 1 at a time till the fontsize reaches 9 for this we have written some code and which is working fine, however, in the code we have arrived to one condition where we check height of string with a constant (which is 15 in our case) - we could get to this constant value using trial and error - and we saw that this varies as node fontsize changes but we do not know the exact relation. We are also sharing the corresponding sample - which have two nodes - one is having large text and which gets fit using method FitTextInTextArea() - please see the comments in this function. Please help us in eliminating this constant hardcoded value (15 in this case) and suggest on how we can calculate this. Thanks in advance, Bala


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Meppy God Member Offline MindFusion support Posts: 1783 Joined: Jul 20^th, 2005	Re: How to determine text fitment value Reply #1 - Jul 19^th, 2011 at 6:24am	Print Post
	In your sample TEXTWIDTH specifies a value relative (expressed as percentage) to the current width of the node. Therefore you cannot use it directly for measurement. Here is the code that works without the need of hardcoded values: Code double textAreaWidth = node.Bounds.Width * TEXTWIDTH / 100; double textAreaHeight = node.Bounds.Height * TEXTHEIGHT / 100; Size size = diagram.MeasureString(node.Text, node, (int)textAreaWidth); if (size.Height > textAreaHeight) { node.FontSize -= 1; node.Repaint(false); } else { isGotFit = true; } Regards, Meppy


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