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Subject: [OASIS Issue Tracker] (OFFICE-4030) Bottom to top, left to right writing direction
[ https://issues.oasis-open.org/browse/OFFICE-4030?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andras Timar updated OFFICE-4030:
---------------------------------
Proposal:
h1. Summary
Proposal owner: Miklos Vajna
Proposal short name: Bottom to top, left to right writing direction
h1. Rationale
*Use cases:*
Users sometimes want to have a text direction which is similar to latin text
(left to right, then top to bottom), but rotated 90 degrees counter-clockwise.
Also, this improves consistency, as doing the same in the clockwise direction
is already possible (the top to bottom, right to left direction is used for
e.g. Japanese text).
*Alternatives considered:*
It is possible to rotate characters at a span level, but that only gives
similar result as long as the content fits a single line.
h1. Requested changes to the ODF Standard
Text changes/additions (compared to ODF 1.2):
20.394.2 <style:graphic-properties> (existing section)
Append to the end of style:writing-mode attribute value list: bt-lr.
20.394.3 <style:page-layout-properties> (existing section)
Append to the end of style:writing-mode attribute value list: bt-lr.
20.394.4 <style:paragraph-properties> (existing section)
Append to the end of style:writing-mode attribute value list: bt-lr.
20.394.5 <style:section-properties> (existing section)
Append to the end of style:writing-mode attribute value list: bt-lr.
20.394.6 <style:table-cell-properties> (existing section)
Append to the end of style:writing-mode attribute value list: bt-lr.
20.394.7 <style:table-properties> (existing section)
Append to the end of style:writing-mode attribute value list: bt-lr.
Schema changes/additions:
{{<rng:define name="common-writing-mode-attlist">}}
{{Â <rng:optional>}}
{{Â Â <rng:attribute name="style:writing-mode">}}
{{Â Â Â <rng:choice>}}
{{Â Â Â ÂÂ<rng:value>lr-tb</rng:value>}}
{{Â Â Â ÂÂ<rng:value>rl-tb</rng:value>}}
{{Â Â Â ÂÂ<rng:value>tb-rl</rng:value>}}
{{Â Â Â ÂÂ<rng:value>tb-lr</rng:value>}}
{{Â Â Â ÂÂ<rng:value>lr</rng:value>}}
{{Â Â Â ÂÂ<rng:value>rl</rng:value>}}
{{Â Â Â ÂÂ<rng:value>tb</rng:value>}}
{{Â Â Â ÂÂ<rng:value>page</rng:value>}}
{{Â Â Â ÂÂ<rng:value>bt-lr</rng:value>}}
{{Â Â Â </rng:choice>}}
{{Â Â </rng:attribute>}}
{{Â </rng:optional>}}
{{</rng:define>}}
In other words, allow bt-lr as a new value of the style:writing-mode
attribute.
h1. Impacts
*Conformance:*
This proposal will not add any mandatory features or behaviors.
*Backwards compatibility:*
This change will not impact existing ODF processors, the usage of the new
attribute value is optional.
*Accessibility impact:*
This change will not impact accessibility.
*Interoperability:*
OOXML's wordprocessingML has a <w:textDirection w:val="btLr"/> markup to
describe the same, this proposal allows roundtripping that feature in ODF.
LibreOffice 6.3 implements this layout feature in its ODF extension namespace.
was:
h1. Summary
Proposal owner: Miklos Vajna
Proposal short name: Bottom to top, left to right writing direction
h1. Rationale
*Use cases:*
Users sometimes want to have a text direction which is similar to latin text
(left to right, then top to bottom), but rotated 90 degrees counter-clockwise.
Also, this improves consistency, as doing the same in the clockwise direction
is already possible (the top to bottom, right to left direction is used for
e.g. Japanese text).
*Alternatives considered:*
It is possible to rotate characters at a span level, but that only gives
similar result as long as the content fits a single line.
h1. Requested changes to the ODF Standard
Text changes/additions (compared to ODF 1.2):
20.394.2 <style:graphic-properties> (existing section)
Append to the end of style:writing-mode attribute value list: bt-lr.
20.394.3 <style:page-layout-properties> (existing section)
Append to the end of style:writing-mode attribute value list: bt-lr.
20.394.4 <style:paragraph-properties> (existing section)
Append to the end of style:writing-mode attribute value list: bt-lr.
20.394.5 <style:section-properties> (existing section)
Append to the end of style:writing-mode attribute value list: bt-lr.
20.394.6 <style:table-cell-properties> (existing section)
Append to the end of style:writing-mode attribute value list: bt-lr.
20.394.7 <style:table-properties> (existing section)
Append to the end of style:writing-mode attribute value list: bt-lr.
Schema changes/additions:
{{{{<rng:define name="common-writing-mode-attlist">}}}}
{{{{Â <rng:optional>}}}}
{{{{Â Â <rng:attribute name="style:writing-mode">}}}}
{{{{Â Â Â <rng:choice>}}}}
{{{{Â Â Â ÂÂ}}{{<rng:value>lr-tb</rng:value>}}}}
{{{{Â Â Â ÂÂ}}{{<rng:value>rl-tb</rng:value>}}}}
{{{{Â Â Â ÂÂ}}{{<rng:value>tb-rl</rng:value>}}}}
{{{{Â Â Â ÂÂ}}{{<rng:value>tb-lr</rng:value>}}}}
{{{{Â Â Â ÂÂ}}{{<rng:value>lr</rng:value>}}}}
{{{{Â Â Â ÂÂ}}{{<rng:value>rl</rng:value>}}}}
{{{{Â Â Â ÂÂ}}{{<rng:value>tb</rng:value>}}}}
{{{{Â Â Â ÂÂ}}{{<rng:value>page</rng:value>}}}}
{{{{Â Â Â ÂÂ}}{{<rng:value>bt-lr</rng:value>}}}}
{{{{Â Â Â </rng:choice>}}}}
{{{{Â Â </rng:attribute>}}}}
{{{{Â </rng:optional>}}}}
{{ {{</rng:define>}}}}
In other words, allow bt-lr as a new value of the style:writing-mode
attribute.
h1. Impacts
*Conformance:*
This proposal will not add any mandatory features or behaviors.
*Backwards compatibility:*
This change will not impact existing ODF processors, the usage of the new
attribute value is optional.
*Accessibility impact:*
This change will not impact accessibility.
*Interoperability:*
OOXML's wordprocessingML has a <w:textDirection w:val="btLr"/> markup to
describe the same, this proposal allows roundtripping that feature in ODF.
LibreOffice 6.3 implements this layout feature in its ODF extension namespace.
> Bottom to top, left to right writing direction
> ----------------------------------------------
>
> Key: OFFICE-4030
> URL: https://issues.oasis-open.org/browse/OFFICE-4030
> Project: OASIS Open Document Format for Office Applications (OpenDocument) TC
> Issue Type: New Feature
> Components: Paragraph
> Affects Versions: ODF-Next
> Reporter: Andras Timar
> Priority: Minor
>
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