[reportlab-users] Finding out the width/height of text

[Jotham]

Hi guys,

I guess I wasn't very clear.  It's important for me that I also know both
the width and the height of the text.  I require the entire bounding
rectangle for the given input string at the given style.  Right now it is a
single line.  Maybe later it is going to need to wrap within a pair of
margins.

On Tue, Jan 19, 2010 at 2:52 AM, Meitham Jamaa <meitham at reportlab.com>wrote:


> Jotham wrote:

> > Hello,

> >

> > I am wanting to use ReportLab to generate both a bitmap (for live preview

> in

> > a client application) and PDF for dispatch to a printer.  I have a client

> > application that allows some basic alterations to be made by the user,

> for

> > this to work I need to be able to find out some geometry information for

> a

> > given piece of text at a given font and style.  I can't see how to do

> this

> > in ReportLab.  Ideally I would be able to render out just the text in

> > question to a bitmap surface of some kind, work with that, and once

> > everything is finalised generate the PDF.

>

> If you text is one line string then you can use

> from reportlab.pdfbase.pdfmetrics import stringWidth

> textWidth = stringWidth(text, fontName, fontSize)

>

> If your text was multi-lines, assuming you are working in a rectangular

> area with defined width,

> then do

>

> from reportlab.lib.utils import simpleSplit

> lines = simpleSplit(text, fontName, fontSize, maxWidth)

>

> lines is a list of all the lines of your paragraph, if you know the line

> spacing value then the

> height of the paragraph can be calculated as lineSpacing*len(lines)

>

> I hope this helps

> Meitham

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