Ryan ,
Let me describe the way I have read PAP & CHP
For better performance when a Doc is loaded in memory,& when its
StyleSheet object is created we are not calling the createPap() & createChp()
functions in StyleSheets constructor. Instead whenever a user wants to read a PAP or
CHP he calls an API that invokes createPap or createChp.
The createPap() function will construct the UPE for the style corresponding to "istd"
in the StyleDescription array using its UPX. It does this by the
recursive, Based -on style Logic. Using a Flag it is set In the
StyleDescription that if a UPE has been created or not, so that the next
time a user wants to read the same PAP he just needs to use the already
created UPE.
reading of PAP:-
For each paragrahs in the PAPBintable, get the istd. As I have observed
this "istd" always corresponds to a Style in the StyleDescription array
having a styleCode = 1i,e a "paragraph" style.Thus it has 2 UPX's one for
papx & one for chpx. Calling createPap(istd) for this style only creates the UPE.pap
for that style, & it delays
the creation of UPE.chp until user calls the createChp(istd)for the same style.The
UPE.pap is created by digging deep recursively until you get a
nilStyle, then apply the UPX.papx to the nilParagraph style, then return
back to the Style from where we started applying the same logic.
Once you get the UPE.pap for the style with "istd" apply the papx present
in the PAPFKP to it to get the final PAP for that paragraph.
reading of CHP:-
The logic is the same here. Initilally you have to track the paragraph in
which a textRun is present & get its "istd" which is always a "paragraph
style", then call
createChp(istd) & keep on creating the UPE.chp for this style.
Now the issue:-
Some where in the based on chain we get a style having styleCode = 2 i,e a
"character" style. Since "character" style only has UPX.chpx &
UPE.chpx(doesnt have UPE.chp), we dont get a nilCharacter style to start
with once we reach the end of the based on chain. I we have to apply
UPX.chpx to UPE.chpx, & finally we end up in making a chpx for the style
from where we started,
eg :- Started in Style A (paragraph style), so has UPX.papx & UPX.chpx and
need to create UPE.pap & UPE.chp.
But since this style is based on Style B (character style), has UPX.chpx
and need to create UPE.chpx.(doesnt have UPE.chp).
As per the Logic given in the Spec, we should take the UPE of based on
style & apply the UPX of current style to it to create its UPE., this is
not possible since here the UPE of based on style is a chpx.
Now the way I have done it:-
When we reach a style like style B in above Example, create its UPE.chpx
first by MERGING the UPX.chpx of that style to the nilUPE.chpx as
described in Spec as "The UPE.chpx for the null style has an istd of zero, a cbGrpprl
of zero
(and an empty grpprl). "
Now apply that MERGED chpx to a standard Chp (nullCharacter style), then
pass this chp to its child style like style A in the example above. From
there on keep applying the UPX.chpx to this Chp to get the final Chp from
StyleSheet & then apply the chpx fromCHPFKP to get the FINAL CHP.
sorry for the long mail, but just wanted to make my point clear.
Please give me your inputs on this.
Thanks & Regards
Praveen
Praveen Mathew
IBM Software Labs,Airport Road,
Bangalore - 560 017,India.
Ph : +91- 80 - 504 4770 (Direct)
+91 - 80 - 5262355 Extn: 3770
Email: [EMAIL PROTECTED]
Praveen Mathew/India/[EMAIL PROTECTED]
28/08/2003 14:52
Please respond to "POI Developers List"
To: "POI Developers List" <[EMAIL PROTECTED]>
cc:
Subject: Re: HWPF Status:- Before you commit
Ryan, I have to discuss certain issues before you commit the code.
If its possible for you we can have a chat seesion. I will be online.
Thanks & Regards
Praveen
"Ryan Ackley" <[EMAIL PROTECTED]>
27/08/2003 23:15
Please respond to "POI Developers List"
To: "POI Developers List" <[EMAIL PROTECTED]>
cc:
Subject: Re: HWPF Status
Thanks Praveen, I will commit tonight.
I am wrapping up Lists. Tables are next.
Ryan
----- Original Message -----
From: "Praveen Mathew" <[EMAIL PROTECTED]>
To: "POI Developers List" <[EMAIL PROTECTED]>
Sent: Wednesday, August 27, 2003 12:31 PM
Subject: HWPF Status
> Hi Ryan,
> I am submitting the code that can read the PAP & CHP of all paragraphs &
> textRuns .The Spec is unclear about the reading of CHP. I have done it
the
> way I understood. I have to discuss with you certain things on that.
>
> Please review the code that reads CHP (createChp() function in
StyleSheetN
> class), when you are free and send me your inputs.
>
> Btw, How is the work on list & tables going??
>
> Thanks & Regards
> Praveen
>
> Praveen Mathew
> IBM Software Labs,Airport Road,
> Bangalore - 560 017,India.
> Ph : +91- 80 - 504 4770 (Direct)
> +91 - 80 - 5262355 Extn: 3770
> Email: [EMAIL PROTECTED]
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
