Subject: RE: [xsl] XSL:FO dynamic font size based on width From: "Wasiq Shaikh" <wasiq911@xxxxxxxxxxx> Date: Fri, 27 Jun 2008 08:41:25 -0400 |
Thank you Dave! I've implemented something similar to what you were suggesting, but instead the title remains on one line: I checked how many characters I could safely get in the space then came up with this formula to auto-fit the text. <xsl:attribute name="font-size"> <xsl:variable name="title"> <xsl:value-of select="."/> </xsl:variable> <xsl:choose> <xsl:when test="string-length($title) > 28"> <xsl:value-of select="46 div (string-length($title) div 28)"/>pt </xsl:when> <xsl:otherwise>46pt</xsl:otherwise> </xsl:choose> </xsl:attribute> Initial font size / (length of string / # of safe chars) The formula is reflective exponential. This means if there are way too many characters, font size value will be small but will eventually flatten out if more characters are added, thereby causing an overflow. In this case I would need about 200+ characters in a string to cause an overflow at roughly 6pt font size. ..maybe there's a better formula... Cheers, WS -----Original Message----- From: Dave Pawson [mailto:davep@xxxxxxxxxxxxx] Sent: Thursday, June 26, 2008 8:57 AM To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx Subject: Re: [xsl] XSL:FO dynamic font size based on width Wasiq Shaikh wrote: > Hello everyone! > > Quick question ... > > I have a title of a book (fo:block) that needs to be one line on an 8.5in x > 11in page. If the title is too long for the page (overflow), is there a way > to dynamically decrease the font-size so that the entire title is shown on > one line? > > Basically, I'm looking for the exact behaviour of PowerPoint's "AutoFit Text > to Placeholder" feature. No. That would require feedback from the rendering engine to the XSLT. Doesn't happen. From use, you might determine that you get x chars 'safely' on the line. Chop the line up based on that and create a number of lines. HTH regards -- Dave Pawson XSLT XSL-FO FAQ. http://www.dpawson.co.uk
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