How long is a string?

Question

"How long is a piece of string?" may be a rhetorical question, but I'm hoping there's an answer to "How many pixels long will my string be when rendered into a GUI.Box?"

I want to grow my box to make it big enough to fit my string. GUI.skin.box.lineHeight * numberOfLines tells me how tall it will be, but there's no equivalent for character width. (And since not all characters are the same width t$$anonymous$$s wouldn't work anyway.)

What I want is somet$$anonymous$$ng like the MeasureText methods in Windows Forms.

As a workaround for now I'll split the string into lines, find the longest line, and multiply by an average character width.

Answer 1

Best Answer

Answer by skovacs1 · Dec 03, 2010 at 09:44 PM

You use GUIStyle.CalcSize:

private var content : GUIContent;

function Start() {
    content = new GUIContent("T$$anonymous$$s is a Test");
}

function OnGUI() {
    var boxContentSize : Vector2 = GUI.skin.box.CalcSize(content);
    GUI.Box(Rect(0,0,boxContentSize.x,boxContentSize.y),content.text);
    var tfContentSize : Vector2 = GUI.skin.textField.CalcSize(content);
    content.text = GUI.TextField(Rect(0,boxContentSize.y,
                                      tfContentSize.x,tfContentSize.y),
                                 content.text);
}

T$$anonymous$$s function does not take wordwrapping into account. To do that, you need to determine the allocated width and then call CalcHeight to figure out the wordwrapped height.

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betaFlux · Jan 04, 2014 at 09:26 PM 0

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Invaluable to me! Thanks!

Answer 2

Best Answer

Answer by Maarten · Dec 03, 2010 at 09:35 PM

You can use GUIStyle.CalcHeight, or GUIStyle.CalcSize for it.

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Answer 3

Answer by franky303 · Sep 20, 2012 at 11:23 AM

             string str = "";
             string line = "";
             string[] words = caption2.Split(' ');
             for ( int w=0; w<words.Length; w++ )
             {
                 Vector2 size = GUI.skin.label.CalcSize(new GUIContent(line));
                 Debug.Log ( size.x + ":" + size.y );
                 if ( size.x >= (540 - xpadding*2 - 10) )
                 {
                     line = words[w];
                     str += "\n\n" + words[w];
                 }
                 else
                 {
                     if ( line != "" ) line += " ";
                     if ( line != "" ) str += " ";
                     str += words[w];
                     line += words[w];        
                 }
             }
 
             GUI.Label( new Rect(xoff + xpadding,ypadding,542-xpadding*2,540-ypadding), str );

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How long is a string?

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