Hi Pascal,
I see your point, although this advice is not particularly useful to what I am
doing. As I mentioned, this table is generated by DocBook, and its templates
for tables are probably the most convoluted in the whole stylesheet. I was
trying to avoid heavy customizations of these templates.
Another issue is that what I really want is "min-height" property in this
case: at XSLT stage, it is not known whether text inside the table cell will
occupy 1, 2, 3 or 15 rows. I tried using min-height in the test case I posted
before, but this causes an exception in FOP (see below). According to spec,
using min-height is perfectly legal: it should set minimum height, while
retaining optimum and maximum height as "auto".
An finally, what you suggested won't work if another cell is more than 1 row.
With the example I posted:
AB
AC
DC
If I set height to 2em, it looks okay. But, if cell B contains a text that
wraps into 2nd line, the table again looks as
AB
DC
but now the whole row containing C and D cells is 2em in height. Given that
DocBook stylesheet does not know how many lines of text there will be in each
cell - that is determined by FO processor - I cannot calculate the height
value beforehand.
So, I tried to set height/min-height on a fo:table-row instead. Setting
min-height= on fo:table-row results in a different exception (also, see
below). Setting height= on fo:table-row does not have any effect at all.
According to XSL-FO spec, block-progression-dimension property (that is set
through height property) is allowed on fo:table-row. Is this a FOP bug/missing
feature?
Regards,
Alexey.
Exception with min-height= on fo:table-cell:
---->8----->8----->8----->8----->8----->8----->8
Sep 14, 2010 12:37:47 PM org.apache.fop.cli.Main startFOP
SEVERE: Exception
java.lang.NullPointerException
at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:217)
at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:125)
at org.apache.fop.cli.Main.startFOP(Main.java:166)
at org.apache.fop.cli.Main.main(Main.java:197)
Caused by: java.lang.NullPointerException
at
org.apache.fop.layoutmgr.table.RowGroupLayoutManager.computeRowHeights(RowGroupLayoutManager.java:165)
at
org.apache.fop.layoutmgr.table.RowGroupLayoutManager.createElementsForRowGroup(RowGroupLayoutManager.java:127)
at
org.apache.fop.layoutmgr.table.RowGroupLayoutManager.getNextKnuthElements(RowGroupLayoutManager.java:60)
at
org.apache.fop.layoutmgr.table.TableContentLayoutManager.getKnuthElementsForRowIterator(TableContentLayoutManager.java:220)
at
org.apache.fop.layoutmgr.table.TableContentLayoutManager.getNextKnuthElements(TableContentLayoutManager.java:172)
at
org.apache.fop.layoutmgr.table.TableLayoutManager.getNextKnuthElements(TableLayoutManager.java:247)
at
org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements(BlockStackingLayoutManager.java:294)
at
org.apache.fop.layoutmgr.BlockLayoutManager.getNextKnuthElements(BlockLayoutManager.java:116)
at
org.apache.fop.layoutmgr.FlowLayoutManager.getNextKnuthElements(FlowLayoutManager.java:107)
at
org.apache.fop.layoutmgr.PageBreaker.getNextKnuthElements(PageBreaker.java:145)
at
org.apache.fop.layoutmgr.AbstractBreaker.getNextBlockList(AbstractBreaker.java:552)
at
org.apache.fop.layoutmgr.PageBreaker.getNextBlockList(PageBreaker.java:137)
at
org.apache.fop.layoutmgr.AbstractBreaker.doLayout(AbstractBreaker.java:302)
at
org.apache.fop.layoutmgr.AbstractBreaker.doLayout(AbstractBreaker.java:264)
at
org.apache.fop.layoutmgr.PageSequenceLayoutManager.activateLayout(PageSequenceLayoutManager.java:106)
at
org.apache.fop.area.AreaTreeHandler.endPageSequence(AreaTreeHandler.java:234)
at
org.apache.fop.fo.pagination.PageSequence.endOfNode(PageSequence.java:123)
at
org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilder.java:340)
at org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:169)
at
org.apache.xalan.transformer.TransformerIdentityImpl.endElement(TransformerIdentityImpl.java:1102)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown
Source)
at org.apache.xerces.xinclude.XIncludeHandler.endElement(Unknown
Source)
at
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown
Source)
at
org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:485)
at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:214)
... 3 more
---->8----->8----->8----->8----->8----->8----->8
Exception with min-height= on fo:table-row:
---->8----->8----->8----->8----->8----->8----->8
Sep 14, 2010 12:53:10 PM org.apache.fop.cli.Main startFOP
SEVERE: Exception
java.lang.NullPointerException
at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:217)
at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:125)
at org.apache.fop.cli.Main.startFOP(Main.java:166)
at org.apache.fop.cli.Main.main(Main.java:197)
Caused by: java.lang.NullPointerException
at
org.apache.fop.layoutmgr.MinOptMaxUtil.toMinOptMax(MinOptMaxUtil.java:106)
at
org.apache.fop.layoutmgr.table.RowGroupLayoutManager.computeRowHeights(RowGroupLayoutManager.java:155)
at
org.apache.fop.layoutmgr.table.RowGroupLayoutManager.createElementsForRowGroup(RowGroupLayoutManager.java:127)
at
org.apache.fop.layoutmgr.table.RowGroupLayoutManager.getNextKnuthElements(RowGroupLayoutManager.java:60)
at
org.apache.fop.layoutmgr.table.TableContentLayoutManager.getKnuthElementsForRowIterator(TableContentLayoutManager.java:220)
at
org.apache.fop.layoutmgr.table.TableContentLayoutManager.getNextKnuthElements(TableContentLayoutManager.java:172)
at
org.apache.fop.layoutmgr.table.TableLayoutManager.getNextKnuthElements(TableLayoutManager.java:247)
at
org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements(BlockStackingLayoutManager.java:294)
at
org.apache.fop.layoutmgr.BlockLayoutManager.getNextKnuthElements(BlockLayoutManager.java:116)
at
org.apache.fop.layoutmgr.FlowLayoutManager.getNextKnuthElements(FlowLayoutManager.java:107)
at
org.apache.fop.layoutmgr.PageBreaker.getNextKnuthElements(PageBreaker.java:145)
at
org.apache.fop.layoutmgr.AbstractBreaker.getNextBlockList(AbstractBreaker.java:552)
at
org.apache.fop.layoutmgr.PageBreaker.getNextBlockList(PageBreaker.java:137)
at
org.apache.fop.layoutmgr.AbstractBreaker.doLayout(AbstractBreaker.java:302)
at
org.apache.fop.layoutmgr.AbstractBreaker.doLayout(AbstractBreaker.java:264)
at
org.apache.fop.layoutmgr.PageSequenceLayoutManager.activateLayout(PageSequenceLayoutManager.java:106)
at
org.apache.fop.area.AreaTreeHandler.endPageSequence(AreaTreeHandler.java:234)
at
org.apache.fop.fo.pagination.PageSequence.endOfNode(PageSequence.java:123)
at
org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilder.java:340)
at org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:169)
at
org.apache.xalan.transformer.TransformerIdentityImpl.endElement(TransformerIdentityImpl.java:1102)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown
Source)
at org.apache.xerces.xinclude.XIncludeHandler.endElement(Unknown
Source)
at
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown
Source)
at
org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:485)
at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:214)
... 3 more
---->8----->8----->8----->8----->8----->8----->8
On Tuesday, September 14, 2010 01:04:02 am Pascal Sancho wrote:
> Hi,
> I think the behaviour is correct here:
> Cells height is not sufficient to see the effect you want.
> try to increase the height of vertically spanned cells (by setting the
> height property to 2em) and you will see what I mean.
>
> Pascal
>
> Le 13/09/2010 22:39, Alexey Neyman a écrit :
> > <fo:table table-layout="fixed" width="100%"
> >
> > border-top="solid black 0.5pt" border-left="solid black 0.5pt">
> >
> > <fo:table-body>
> >
> > <fo:table-row>
> >
> > <fo:table-cell border-bottom="solid black 0.5pt"
> >
> > border-right="solid black 0.5pt"
> > number-rows-spanned="2"
> > number-columns-spanned="2">
> >
> > <fo:block>A</fo:block>
> >
> > </fo:table-cell>
> > <fo:table-cell border-bottom="solid black 0.5pt"
> >
> > border-right="solid black 0.5pt">
> >
> > <fo:block>B</fo:block>
> >
> > </fo:table-cell>
> >
> > </fo:table-row>
> > <fo:table-row>
> >
> > <fo:table-cell border-bottom="solid black 0.5pt"
> >
> > border-right="solid black 0.5pt" number-rows-spanned="2">
> >
> > <fo:block>C</fo:block>
> >
> > </fo:table-cell>
> >
> > </fo:table-row>
> > <fo:table-row>
> >
> > <fo:table-cell border-bottom="solid black 0.5pt"
> >
> > border-right="solid black 0.5pt">
> >
> > <fo:block>D</fo:block>
> >
> > </fo:table-cell>
> > <fo:table-cell border-bottom="solid black 0.5pt"
> >
> > border-right="solid black 0.5pt">
> >
> > <fo:block>E</fo:block>
> >
> > </fo:table-cell>
> >
> > </fo:table-row>
> >
> > </fo:table-body>
> >
> > </fo:table>
>
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