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Re: [docbook-apps] HTML / HTMLHelp: ignore.image.scaling parameter
- From: Bob Stayton <bobs at sco dot com>
- To: "Paul A. Hoadley" <paulh at logicsquad dot net>
- Cc: docbook-apps at lists dot oasis-open dot org
- Date: Tue, 6 May 2003 10:20:34 -0700
- Subject: Re: [docbook-apps] HTML / HTMLHelp: ignore.image.scaling parameter
- References: <20030506084222.GH52445@grover.logicsquad.net>
On Tue, May 06, 2003 at 06:12:22PM +0930, Paul A. Hoadley wrote:
> Hello,
>
> I am using htmlhelp.xsl (from 1.60.1) to generate HTML Help, though I
> suspect this is a general HTML stylesheet issue.
>
> I have some PNG images which I have scaled to a particular width for
> PDF output. For example:
>
> <figure id="fig:optform1">
> <title>&optform;</title>
> <mediaobject>
> <imageobject>
> <imagedata fileref="images/screenshots/fig01.png"
> format="PNG" align="center" contentwidth="12cm"
> scalefit="1"/>
> </imageobject>
> </mediaobject>
> </figure>
>
> In HTMLHelp (and HTML) I want to use the full size, unscaled
> screenshot. I have tried:
>
> <xsl:param name='ignore.image.scaling' select="1"/>
>
> in my driver, but I still get explicit widths added to the <img>
> elements in the HTML output:
>
> <img src="images/screenshots/fig01.png" align="middle"
> width="425.196850393701" alt="Options Form">
>
> Shouldn't that parameter achieve what I want? Can someone suggest an
> alternative that doesn't involve adding a new <mediaobject> for a HTML
> version of every image I use 'scalefit' on? :-)
Yes, that parameter should work. It looks like the
contentwidth attribute is being processed even when that
parameter is set, which is a bug in the stylesheet.
I went ahead and filed a bug report (733406) on it.
I'd fix it, but the image scaling code is a bit complex,
and I think Norm should look at it.
The scalefit attribute isn't the problem, because it is
ignored when contentwidth is used. The contentwidth,
scale, and scalefit attributes are mutually exclusive. If
more than one of these attributes is used on an image,
then the earliest one in the list takes precedence.
--
Bob Stayton 400 Encinal Street
Publications Architect Santa Cruz, CA 95060
Technical Publications voice: (831) 427-7796
The SCO Group fax: (831) 429-1887
email: bobs@sco.com
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