RE: [cgmo-webcgm] how to add Style Properties to XCF?

["DULUC, Franck" <franck.duluc@airbus.com>]

All,

This is the view that my SGML/XML background lead me on.

Alt1 + definition of an entity in the DTD.

Regards,

Franck




-----Message d'origine-----
De : Dieter Weidenbruck [mailto:dieter@itedo.com]
Envoyé : jeudi 16 juin 2005 09:41
À : cgmo-webcgm@lists.oasis-open.org
Objet : RE: [cgmo-webcgm] how to add Style Properties to XCF?


Alt1 + definition of an entity in the DTD.

> -----Original Message-----
> From: Lofton Henderson [mailto:lofton@rockynet.com]
> Sent: Thursday, June 16, 2005 2:32 AM
> To: cgmo-webcgm@lists.oasis-open.org
> Subject: [cgmo-webcgm] how to add Style Properties to XCF?
>
>
> WebCGM TC,
>
> Feedback welcome, if you have a preference...
>
> I think we decided today to add Style Properties to XCF
> (correct?).  Please
> state your preferences about...   How should we add them?
>
> Alt.1: to each element in XCF, add 9 attributes with names as in the SP
> table of 5.7.5.
> Alt.2:  to each element in XCF, add 1 attribute which is a string of 2n
> wsp-separated simple string-valued items (names and  values).
>
> RECOMMENDATION:  Alt.1
>
> DISCUSSION:
>
> For reference, the method in 5.7.5 is setStyleProperty(name,
> value), where
> name and value are type WebCGMString.  Discussion and examples....
>
> Alt.2 would look like, for grobject (4.4) example:
> ==========
> content
> ----
> <grobject  apsid="myObj1"  styleProperties="stroke-weight  50%
> stroke-color  #FF0000" ...>
>
> DTD
> -----
> <!ENTITY % grobjectEXT "" >
> <!ENTITY % grobjectAttEXT "" >
> <!ELEMENT grobject ( linkuri %grobjectEXT; )* >
> <!ATTLIST grobject
>                      apsid         ID           #REQUIRED
>                      screentip     CDATA        #IMPLIED
>                      region        CDATA        #IMPLIED
>                      viewcontext   CDATA        #IMPLIED
>                      visibility    ( on | off | inherit) #IMPLIED
>                      interactivity ( on | off | inherit) #IMPLIED
>                      styleProperties   CDATA        #IMPLIED
>                      %grobjectAttEXT;
>  >
>
> and would contain some verbiage about the structure of the string  [(name
> wsp value wsp)+].  Such verbiage could be centralized in 4.10, "Attribute
> encoding", and referenced from each XCF element's section.
>
> Alt.1 would look like:
> ==========
> content
> -----
> <grobject  apsid="myObj1"  stroke-weight="50%"
> stroke-color="#FF0000" ...>
>
> DTD
> -----
> On every element of XCF, the single styleProperty line of Alt.2 would be
> replaced by 9 lines (if we keep text-font, 8 otherwise):
>
> <!ENTITY % grobjectEXT "" >
> <!ENTITY % grobjectAttEXT "" >
> <!ELEMENT grobject ( linkuri %grobjectEXT; )* >
> <!ATTLIST grobject
>                      apsid         ID           #REQUIRED
>                      screentip     CDATA        #IMPLIED
>                      region        CDATA        #IMPLIED
>                      viewcontext   CDATA        #IMPLIED
>                      visibility    ( on | off | inherit) #IMPLIED
>                      interactivity ( on | off | inherit) #IMPLIED
>                      background-color     CDATA        #IMPLIED
>                      character-height     CDATA        #IMPLIED
>                      fill-color     CDATA        #IMPLIED
>                      intensity     CDATA        #IMPLIED
>                      stroke-color     CDATA        #IMPLIED
>                      stroke-weight     CDATA        #IMPLIED
>                      text-color     CDATA        #IMPLIED
>                      text-font     CDATA        #IMPLIED
>                      raster-intensity     CDATA        #IMPLIED
> %grobjectAttEXT;
>  >
>
> and would pretty much just point to the table in 5.7.5 for
> contents of CDATA.
>
> Alt.1 seems more natural from the usage perspective, though it is uglier
> from the DTD-definition perspective, having to add 9 lines to
> every element
> in the DTD.  (That could be mitigated somewhat -- the DTD of XCF
> could also
> define an entity and put it in place of the 9 lines.)
>
> Preferences?
>
> -Lofton.
>
>
>
>
>


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