Re: [Xbae-discuss] xbae and sorting

[Bernd M. <bm...@ar...>]

Am Montag, 28. Juni 2004 17:59 schrieben Sie:
> Sorting can be accomplished quite easily by putting pointers to your
> records in the indvidual rows with XbaeMatrixSetRowUserData() and then wh=
en
> you need to sort the matrix collect all the pointers with
> XbaeMatrixGetRowUserData, sort them with qsort, then reset the matrix row=
s.
>
>     We've done several varients of this and it works just fine.
>
>

many thanks for your answer.
the problem is, that several applications need to store individual data in =
the=20
user_data pointer. Therefore this value has to be sorted too.
there may not be a problem to add a second one, but i would prefer a buildi=
n=20
function like:

XbaeMatrixSort (Widget w, void *proc)

where proc is the user-defined-sort-comparison-function.

=2E..
String value1;
String value2;
XtPointer userdata1;
XtPointer userdata2;
=2E.. (something like this...)

I would prefer a defined structure, which will include all neccesary values.

Take a look to=20
http://www.arcad.de/INTERNA-Prospekt-WWW.pdf
This product was build with xrt-table.


=46or my opinion the per_cell and user-data value and pixmap and clip point=
er=20
has to get connected to your cells matrix. (one structure)
then the sorting will be easy and the handling of the xbae will be more=20
easier.

i am sure, the NOT_PER_CELL method is faster than the PER_CELL method.
we have tested one of our databases with 17.000 articles with your xbae and=
=20
the slow per-cell method. its really fast enough.


xrt does all jobs with a filter-mask.
first, you have to declare the row and/or column range, then you change the=
=20
parameters. (color, alignment, etc....)
This is very efficient.


the source of xbae is very difficult. there is many same code and the same=
=20
functions in the source. (XtRealloc...., XtFree....)
while we tried to understand the code, we lost the overview.

when we want to add a value to a cell, we have first to add a row and a=20
column. a quick easy start is not possible. (dynamic malloc?)

a big problem is the multiline/singleline table standard. in practice it is=
=20
important to use both XmText modes together. (long text for articles, etc.)
your draw.c routine is not able to display long text properly.=20
if the text contains the CR-character, the text will not be parsed into=20
correct lines. (we have changed this behavior)

the decision between pixmap and/or text depends on a callback. i guess, tha=
t=20
it should depend on an !XmUNSPECIFIED_PIXMAP value in your pixmap variable=
=20
and/or type. (possible text and pixmap together? no areaclear?)

the xbae it the only widget we found, which has a good basis.=20
in practice there are some missing functions, which rejects a proper using.

So:
unfortunally i have no time to build a good, common xbae source.
i am only able to build a (german: hauruck) derivate.
we are not able to use the xrt widget because it seems, that the developmen=
t=20
stops. the qt library is to far away. so the xbae source must live, isnt it?

bernd



>
> -----Original Message-----
> From: xba...@li...
> [mailto:xba...@li...] On Behalf Of Bernd
> Metzger Sent: Monday, June 28, 2004 10:15 AM
> To: xba...@li...
> Subject: [Xbae-discuss] xbae and sorting
>
>
> hello,
>
> we have worked a long time with the xrt table widget.
> because it seems, that there is no further development, we
> took a look to other widgets.
> the xbae widget is ok, but there are some important functions missing:
>
> the structure of the cell structs doesnt allow a qsort.
> the handing of pixmaps is complicate (callback!)
> one missing resize function in the matrixrefresh function is important.
> (add it)
>
> There is no problem to change this source.
> but we want to work together with all developers.
> we would like to get an answer, so we will work together.
>
>
> mit freundlichen Gr=FC=DFen
> Ihr
>
> Arcad Systemhaus
> Bernhard Metzger
> bm...@ar...
> http://www.arcad.de
> phone: +49 2364 2000
>
>
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=2D-=20
mit freundlichen Gr=FC=DFen
Ihr

Arcad Systemhaus
Bernhard Metzger
bm...@ar...
http://www.arcad.de
phone: +49 2364 2000