[html5] Measure tons of text in a fast way

[Ian Hickson]

On Tue, 18 Jan 2011, Sebastian Werner wrote:
> 
> What we need would be a method to measure text. The text only have basic 
> font formatting (font-family, line-height, font-size, font-style, etc.) 
> and all styles which should be respected are locally applied or can be 
> given through a method.

You can do this using the 2dcontext.measureText() method of the <canvas> 
element. Currently it will only give you the width, but we'll be adding 
more metrics over time.


> Alexander ("bga_" on Twitter) already suggested to use 
> Canvas.measureText, but this does not support any of the CSS font styles 
> which are important for my use case.

Which ones in particular?

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