Proposal for extending stroke dashed

[Michael Brauer - Sun Germany - ham02 - Hamburg <Michael.Brauer@Sun.COM>]

Hi,

please find below a proposal for extending stroke dashes. The author of 
the proposal is Christian Lippka, from the OOo Impress team.

Best regards

Michael

-----------------------------------------------------------------------

Stroke dashes can currently only configured to have a fixed length for 
dashes. It is reasonable to also allow to set the length of dashes 
relative to the width of the stroke. So if the width of the stroke 
changes size the dashes are changing size also. This would also be 
needed for the distance between dashes or dots.

So I propose to change ODF v1.2 draft 3 section 14.14.7.4 and  14.14.7.5 
as follows:

14.14.7.4 Dots

The attribute pairs draw:dots1, draw:dots1-length and draw:dots2, 
draw:dots2-length each define a repeating sequence of dots that are used 
to render a dash. Both sequences are used alternating. The draw:dots1 
attribute specifies the number of dots for the first sequence and the 
draw:dots1-length attribute specifies the length of each of these dots. 
The draw:dots2 and draw:dots2-length attributes specify the number of 
dots for the second sequence and their length.

If the length are given as percentage values, the length will be 
calculated as percentages from the with of the line that gets stroked.

<define name="draw-stroke-dash-attlist" combine="interleave">
   <optional>
     <attribute name="draw:dots1">
       <ref name="integer"/>
     </attribute>
   </optional>
   <optional>
     <attribute name="draw:dots1-length">
       <choice>
         <ref name="length"/>
         <ref name="percent"/>
       </choice>
     </attribute>
   </optional>
   <optional>
     <attribute name="draw:dots2">
       <ref name="integer"/>
     </attribute>
   </optional>
   <optional>
     <attribute name="draw:dots2-length">
       <choice>
         <ref name="length"/>
         <ref name="percent"/>
       </choice>
     </attribute>
   </optional>
</define>

14.14.7.5 Distance

The draw:distance attribute specifies the distance between the dots of a 
dash. If the length is given as a percentage value, the length will be 
calculated as percentages from the with of the line that gets stroked.

<define name="draw-stroke-dash-attlist" combine="interleave">
   <optional>
     <attribute name="draw:distance">
       <choice>
         <ref name="length"/>
         <ref name="percent"/>
       </choice>
     </attribute>
   </optional>
</define>

-- 
Michael Brauer, Technical Architect Software Engineering
StarOffice/OpenOffice.org
Sun Microsystems GmbH             Nagelsweg 55
D-20097 Hamburg, Germany          michael.brauer@sun.com
http://sun.com/staroffice         +49 40 23646 500
http://blogs.sun.com/GullFOSS

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