Header out of alignment - space before graphic

[Paul Moloney]

I've implemented a three-celled header as described at http://www.sagehill.net/docbookxsl/PrintHeaders.html#PrintHeadersText; the left cell contains a graphic, while the right one contains the name of the current chapter.

All is well except there's unexplained space above the graphic, which means it's not level with the chapter name (see http://img47.imageshack.us/img47/1728/headered8.png)

The graphic has the following settings:

          <fo:external-graphic height="1.42cm" padding-before="0cm" padding-after="0cm" padding-start="0cm" padding-top="0cm" padding-bottom="0cm" padding-end="0cm"  content-height="1.42cm" display-align="bottom">
 etc...

I also set the region.before.extent value to 1.5cm. However, the space before the graphic pushs it down over the body text, meaning that (as a workaround) I had to set page.margin.top to 0cm (that is, the very top of the page).

The section of my custom layer dealing with headers is at:

http://www.pasteserver.net/824

An extract from the resulting FO file showing a typical header table is at:

http://www.pasteserver.net/825

Regards,

P.

[Bob Stayton]

Hi Paul,
There are some property problems in the table content:

display-align="bottom"
text-align="bottom"

but I don't think those are the problem.  You might try adding a background
color to the table cell, and add borders around the cell, block, and
external-graphic to see what is contributing the space.

Bob Stayton
Sagehill Enterprises
DocBook Consulting
bobs@...


----- Original Message -----
From: "Paul Moloney" <paul_moloney@...>
To: <docbook-apps@...>
Sent: Monday, April 02, 2007 2:19 AM
Subject: [docbook-apps] Header out of alignment - space before graphic

>
> I've implemented a three-celled header as described at
> http://www.sagehill.net/docbookxsl/PrintHeaders.html#PrintHeadersText; 
> the
> left cell contains a graphic, while the right one contains the name of
> the
> current chapter.
>
> All is well except there's unexplained space above the graphic, which
> means
> it's not level with the chapter name (see
> http://img47.imageshack.us/img47/1728/headered8.png)
>
> The graphic has the following settings:
>
>          <fo:external-graphic height="1.42cm" padding-before="0cm"
> padding-after="0cm" padding-start="0cm" padding-top="0cm"
> padding-bottom="0cm" padding-end="0cm"  content-height="1.42cm"
> display-align="bottom">
> etc...
>
> I also set the region.before.extent value to 1.5cm. However, the space
> before the graphic pushs it down over the body text, meaning that (as a
> workaround) I had to set page.margin.top to 0cm (that is, the very top of
> the page).
>
> The section of my custom layer dealing with headers is at:
>
> http://www.pasteserver.net/824
>
> An extract from the resulting FO file showing a typical header table is
> at:
>
> http://www.pasteserver.net/825
>
> Regards,
>
> P.
> --
> View this message in context:
> http://www.nabble.com/Header-out-of-alignment---space-before-graphic-tf3504806.html#a9788090
> Sent from the docbook apps mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: docbook-apps-unsubscribe@...
> For additional commands, e-mail: docbook-apps-help@...
>
>
>

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[Paul Moloney]

Bob Stayton wrote:

but I don't think those are the problem.  You might try adding a background
color to the table cell, and add borders around the cell, block, and
external-graphic to see what is contributing the space.

Hi Bob,

Only got back to this problem now.... I tried your suggestion, and the result is at http://img175.imageshack.us/my.php?image=headerwithcolorle3.png. It just seems that something is forcing space before (and indeed, a small amount of space after) the left-hand graphic. (The yellow and blue colors indicate the left-most and right-most cells in the header table, respectively, while the left-hand pink indicates the background of the graphic). Nothing in the .fo file seemed to indicates where this space is from.

Then I remembered an answer you gave to a previous question I had about unwanted space before graphics (http://www.nabble.com/forum/ViewPost.jtp?post=9620007&framed=y)  so I edited the .fo and, for the header cell containing the graphic, set both line-height and font-size to zero. That works! Result is here: http://img239.imageshack.us/img239/365/headerwithcolorafterxo6.png

Unfortunately, I have _no_ idea how to do this in my custom layer.  The instructions at http://www.sagehill.net/docbookxsl/PrintHeaders.html#PrintHeadersText don't seem to indicate that such a problem might happen, and only describes how to specify the content of the cells, and not the attributes of the cells themselves. Any ideas? Is there perhaps a setting in my custom layer which is causing this problem?

Thanks,

P.

[Bob Stayton]

Hi Paul,
Actually, it is the fo:block inside the cell that is applying the inherited
font-size and line-height, probably from the header.content.properties
attribute-set, which is applied to the fo:block that contains the header
table.

In header.content, you should be able to use <xsl:attribute> elements as
the first thing in each <xsl:when> clause to apply attributes to the
fo:block containing that content.  Any xsl:attribute elements must come
first when a block is started, before any content.

  <xsl:when test="$position ...">
    <xsl:attribute name="line-height">0pt</xsl:attribute>
    <xsl:attribute name="font-size">0pt</xsl:attribute>
    <fo:external-graphic ...


Bob Stayton
Sagehill Enterprises
DocBook Consulting
bobs@...


----- Original Message -----
From: "Paul Moloney" <paul_moloney@...>
To: <docbook-apps@...>
Sent: Thursday, April 12, 2007 8:01 AM
Subject: Re: [docbook-apps] Header out of alignment - space before graphic

>
>
> Bob Stayton wrote:
>>
>> but I don't think those are the problem.  You might try adding a
>> background
>> color to the table cell, and add borders around the cell, block, and
>> external-graphic to see what is contributing the space.
>
> Hi Bob,
>
> Only got back to this problem now.... I tried your suggestion, and the
> result is at
> http://img175.imageshack.us/my.php?image=headerwithcolorle3.png. It just
> seems that something is forcing space before (and indeed, a small amount
> of
> space after) the left-hand graphic. (The yellow and blue colors indicate
> the
> left-most and right-most cells in the header table, respectively, while
> the
> left-hand pink indicates the background of the graphic). Nothing in the
> .fo
> file seemed to indicates where this space is from.
>
> Then I remembered an answer you gave to a previous question I had about
> unwanted space before graphics
> (http://www.nabble.com/forum/ViewPost.jtp?post=9620007&framed=y)  so I
> edited the .fo and, for the header cell containing the graphic, set both
> line-height and font-size to zero. That works! Result is here:
> http://img239.imageshack.us/img239/365/headerwithcolorafterxo6.png
>
> Unfortunately, I have _no_ idea how to do this in my custom layer.  The
> instructions at
> http://www.sagehill.net/docbookxsl/PrintHeaders.html#PrintHeadersText 
> don't
> seem to indicate that such a problem might happen, and only describes how
> to
> specify the content of the cells, and not the attributes of the cells
> themselves. Any ideas? Is there perhaps a setting in my custom layer
> which
> is causing this problem?
>
> Thanks,
>
> P.
> --
> View this message in context:
> http://www.nabble.com/Header-out-of-alignment---space-before-graphic-tf3504806.html#a9962233
> Sent from the docbook apps mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: docbook-apps-unsubscribe@...
> For additional commands, e-mail: docbook-apps-help@...
>
>
>

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[Colin Shapiro-2]

Hi Paul,

I have had this problem before, where I had to set the font-size to 0pt to prevent unwanted space before and after images.

All that it requires is an fo:block with this property:

<fo:block font-size="0pt"/>

If you're customizing the header.content template, simply surround the desired content with one of these fo:blocks; i.e:

<xsl:template name="header.content">
  ...
  <xsl:when test="$sequence = 'first'">
    <fo:block font-size="0pt">
      ...content...
    </fo:block>
  </xsl:when>
  ...
</xsl:template>

I think that will be all that is necessary... by specifying font-size="0pt" on a block within a header table cell, I don't think you will actually need to do anything to the table-cell itself.  If you find that this doesn't work, however, and you'd like to try customizing the table-cell itself, then search pagesetup.xsl for the template called header.table.  Copy it to your customization layer, and work with it as necessary.

I hope that helps.

Colin

On 4/12/07, Paul Moloney <paul_moloney@...> wrote:

Bob Stayton wrote:
>
> but I don't think those are the problem.  You might try adding a
> background
> color to the table cell, and add borders around the cell, block, and
> external-graphic to see what is contributing the space.

Hi Bob,

Only got back to this problem now.... I tried your suggestion, and the
result is at
http://img175.imageshack.us/my.php?image=headerwithcolorle3.png . It just
seems that something is forcing space before (and indeed, a small amount of
space after) the left-hand graphic. (The yellow and blue colors indicate the
left-most and right-most cells in the header table, respectively, while the
left-hand pink indicates the background of the graphic). Nothing in the .fo
file seemed to indicates where this space is from.

Then I remembered an answer you gave to a previous question I had about
unwanted space before graphics
(http://www.nabble.com/forum/ViewPost.jtp?post=9620007&framed=y)  so I
edited the .fo and, for the header cell containing the graphic, set both
line-height and font-size to zero. That works! Result is here:
http://img239.imageshack.us/img239/365/headerwithcolorafterxo6.png

Unfortunately, I have _no_ idea how to do this in my custom layer.  The
instructions at
http://www.sagehill.net/docbookxsl/PrintHeaders.html#PrintHeadersText don't
seem to indicate that such a problem might happen, and only describes how to
specify the content of the cells, and not the attributes of the cells
themselves. Any ideas? Is there perhaps a setting in my custom layer which
is causing this problem?

Thanks,

P.
--
View this message in context: http://www.nabble.com/Header-out-of-alignment---space-before-graphic-tf3504806.html#a9962233
Sent from the docbook apps mailing list archive at Nabble.com.


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[Colin Shapiro-2]

Ah, I forgot that there's another fo:block above what you put in header.content:

            <fo:block>
              <xsl:call-template name="header.content">
                <xsl:with-param name="pageclass" select="$pageclass"/>
                <xsl:with-param name="sequence" select="$sequence"/>
                <xsl:with-param name="position" select="'left'"/>
                <xsl:with-param name="gentext-key" select="$gentext-key"/>
              </xsl:call-template>
            </fo:block>

You can disregard my previous reply, then.  Bob's solution is better :)

Colin

On 4/12/07, Bob Stayton <bobs@...> wrote:

Hi Paul,
Actually, it is the fo:block inside the cell that is applying the inherited
font-size and line-height, probably from the header.content.properties
attribute-set, which is applied to the fo:block that contains the header
table.

In header.content, you should be able to use <xsl:attribute> elements as
the first thing in each <xsl:when> clause to apply attributes to the
fo:block containing that content.  Any xsl:attribute elements must come
first when a block is started, before any content.

  <xsl:when test="$position ...">
    <xsl:attribute name="line-height">0pt</xsl:attribute>
    <xsl:attribute name="font-size">0pt</xsl:attribute>
    <fo:external-graphic ...


Bob Stayton
Sagehill Enterprises
DocBook Consulting
bobs@...


----- Original Message -----
From: "Paul Moloney" < paul_moloney@...>
To: <docbook-apps@...>
Sent: Thursday, April 12, 2007 8:01 AM
Subject: Re: [docbook-apps] Header out of alignment - space before graphic


>
>
> Bob Stayton wrote:
>>
>> but I don't think those are the problem.  You might try adding a
>> background

>> color to the table cell, and add borders around the cell, block, and
>> external-graphic to see what is contributing the space.
>
> Hi Bob,
>
> Only got back to this problem now.... I tried your suggestion, and the
> result is at
> http://img175.imageshack.us/my.php?image=headerwithcolorle3.png. It just
> seems that something is forcing space before (and indeed, a small amount
> of
> space after) the left-hand graphic. (The yellow and blue colors indicate
> the
> left-most and right-most cells in the header table, respectively, while
> the
> left-hand pink indicates the background of the graphic). Nothing in the
> .fo
> file seemed to indicates where this space is from.
>
> Then I remembered an answer you gave to a previous question I had about
> unwanted space before graphics
> ( http://www.nabble.com/forum/ViewPost.jtp?post=9620007&framed=y)  so I
> edited the .fo and, for the header cell containing the graphic, set both
> line-height and font-size to zero. That works! Result is here:
> http://img239.imageshack.us/img239/365/headerwithcolorafterxo6.png
>
> Unfortunately, I have _no_ idea how to do this in my custom layer.  The
> instructions at
> http://www.sagehill.net/docbookxsl/PrintHeaders.html#PrintHeadersText
> don't
> seem to indicate that such a problem might happen, and only describes how
> to
> specify the content of the cells, and not the attributes of the cells
> themselves. Any ideas? Is there perhaps a setting in my custom layer
> which
> is causing this problem?
>
> Thanks,
>
> P.
> --
> View this message in context:
> http://www.nabble.com/Header-out-of-alignment---space-before-graphic-tf3504806.html#a9962233
> Sent from the docbook apps mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: docbook-apps-unsubscribe@...
> For additional commands, e-mail: docbook-apps-help@...
>
>
>

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[Bob Stayton]

Some parts of this message have been removed. Learn more about Nabble's security policy.

Hi Colin,

Actually, I think either method should work. As long as the outer blocks don't have any content of their own, their font properties should not affect the spacing.

 

Bob Stayton
Sagehill Enterprises
DocBook Consulting
bobs@...

 

 

----- Original Message -----

From: cmshapiro@...

To: bobs@... ; docbook-apps@...

Sent: Thursday, April 12, 2007 8:59 AM

Subject: Re: [docbook-apps] Header out of alignment - space before graphic

Ah, I forgot that there's another fo:block above what you put in header.content:

            <fo:block>
              <xsl:call-template name="header.content">
                <xsl:with-param name="pageclass" select="$pageclass"/>
                <xsl:with-param name="sequence" select="$sequence"/>
                <xsl:with-param name="position" select="'left'"/>
                <xsl:with-param name="gentext-key" select="$gentext-key"/>
              </xsl:call-template>
            </fo:block>

You can disregard my previous reply, then.  Bob's solution is better :)

Colin

On 4/12/07, Bob Stayton <bobs@...> wrote:

Hi Paul,
Actually, it is the fo:block inside the cell that is applying the inherited
font-size and line-height, probably from the header.content.properties
attribute-set, which is applied to the fo:block that contains the header
table.

In header.content, you should be able to use <xsl:attribute> elements as
the first thing in each <xsl:when> clause to apply attributes to the
fo:block containing that content.  Any xsl:attribute elements must come
first when a block is started, before any content.

  <xsl:when test="$position ...">
    <xsl:attribute name="line-height">0pt</xsl:attribute>
    <xsl:attribute name="font-size">0pt</xsl:attribute>
    <fo:external-graphic ...


Bob Stayton
Sagehill Enterprises
DocBook Consulting
bobs@...


----- Original Message -----
From: "Paul Moloney" < paul_moloney@...>
To: <docbook-apps@...>
Sent: Thursday, April 12, 2007 8:01 AM
Subject: Re: [docbook-apps] Header out of alignment - space before graphic

>
>
> Bob Stayton wrote:
>>
>> but I don't think those are the problem.  You might try adding a
>> background
>> color to the table cell, and add borders around the cell, block, and
>> external-graphic to see what is contributing the space.
>
> Hi Bob,
>
> Only got back to this problem now.... I tried your suggestion, and the
> result is at
> http://img175.imageshack.us/my.php?image=headerwithcolorle3.png. It just
> seems that something is forcing space before (and indeed, a small amount
> of
> space after) the left-hand graphic. (The yellow and blue colors indicate
> the
> left-most and right-most cells in the header table, respectively, while
> the
> left-hand pink indicates the background of the graphic). Nothing in the
> .fo
> file seemed to indicates where this space is from.
>
> Then I remembered an answer you gave to a previous question I had about
> unwanted space before graphics
> ( http://www.nabble.com/forum/ViewPost.jtp?post=9620007&framed=y)  so I
> edited the .fo and, for the header cell containing the graphic, set both
> line-height and font-size to zero. That works! Result is here:
> http://img239.imageshack.us/img239/365/headerwithcolorafterxo6.png
>
> Unfortunately, I have _no_ idea how to do this in my custom layer.  The
> instructions at
> http://www.sagehill.net/docbookxsl/PrintHeaders.html#PrintHeadersText
> don't
> seem to indicate that such a problem might happen, and only describes how
> to
> specify the content of the cells, and not the attributes of the cells
> themselves. Any ideas? Is there perhaps a setting in my custom layer
> which
> is causing this problem?
>
> Thanks,
>
> P.
> --
> View this message in context:
> http://www.nabble.com/Header-out-of-alignment---space-before-graphic-tf3504806.html#a9962233
> Sent from the docbook apps mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: docbook-apps-unsubscribe@...
> For additional commands, e-mail: docbook-apps-help@...
>
>
>

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