Plot details - barchart reports

[Ian Lewis]

David,

If you made the changes in the local SVN repo then you can do:

svn diff > gridlines.diff

and send us the gridlines.diff file.

Thanks,
Ian

2008/2/12, Davide Imbeni <davide.imbeni at gmail.com>:
>
> Hi again,
>
> I started to look into goffice, and dealt with the grid option, as a start
> (easy things first...).
>
> I think I got it working in a pretty enough way (for me). I added a few
> lines in src/gnome-utils/gnc-html-graph-gog.c that actually draw the
> y-major-grid on some grayed background, and added the relevant option
> "Background Grid" in the Display Tab of the barchart report.
> All in all, changed (as few lines as possible)
> src/gnome-utils/gnc-html-graph-gog.c
> src/report/report-system/html-barchart.scm
> src/report/report-system/report-system.scm
> src/report/standard-reports/category-barchart.scm
>
> Now the questions:
>
> How do I submit this changes to you, so as to get feedback/comments and
> eventually, hopefully, have this little piece of code included in the
> trunk?
> Please assume very basic knowledge of svn and diff...
>
> Since I modified some gnucash code rather than creating a custom report,
> if
> I don't get them incorporated I will loose my changes when gnucash
> evolves,
> right?
>
> BTW, I was working on r16930, downloaded via SVN.
>
> Thanks
>
> Davide
>
>
>
> On Feb 7, 2008 6:32 PM, Davide Imbeni <davide.imbeni at gmail.com> wrote:
>
> > Thanks for your indications.
> > I will start to work on it and report as soon as I have something ready,
> > or (more likely) additional doubts.
> > As I said, I will first have to learn A LOT, so don't expect fast
> > patches...
> >
> > Thank you
> >
> > Davide
> >
> >
> >
> > On Feb 7, 2008 6:08 PM, Josh Sled <jsled at asynchronous.org> wrote:
> >
> > > "Davide Imbeni" <davide.imbeni at gmail.com> writes:
> > > > I would like to change slightly the appearance of the plots in
> > > bar-chart
> > > > reports.
> > > > As it is now it's a bit difficult to get an idea of the level of the
> > > bars (a
> > > > part from the first one on the left), so I would like to add a grid
> to
> > > the
> > > > plot or, even better, have the actual numeric values visible (e.g.
> > > when
> > > > clicking on the corresponding bar, or when pointing it without
> > > clicking, or
> > > > even as a label close to it)
> > >
> > > These things would be provided by modifying how we call libgoffice,
> > > which
> > > provides the actual plotting.  The primary binding code between
> gnucash
> > > and
> > > goffice is in src/gnome-utils/gnc-html-graph-gog.c.
> > >
> > > The interface between the reports and that code is through a couple of
> > > levels$B!D(B
> > >
> > > The report (scm code) will emit an <object> tag with <param> tags for
> > > the
> > > various parameters.  See src/report/report-system/html-barchart.scm.
> > >
> > > GtkHtml is configured for <object> tags (with a particular class-id)
> to
> > > be
> > > handled by the aforementioned gnc-html-graph-gog code.  It then parses
> > > the
> > > params/data, and converts it into goffice's interface, and renders the
> > > report
> > > into a pixmap.  The pixmap is then returned to GtkHtml as the
> rendering
> > > of
> > > the <object> tag.
> > >
> > > > I don't know anything about scheme, guile, and extremely little
> about
> > > html,
> > > > and before continuing my research, I would like to get directions
> and
> > > > suggestions from the experts.
> > > >
> > > > Where to start from? Do I have to dig into scheme? Shall I create a
> > > custom
> > > > report or change something in the stylesheet?
> > >
> > > - Make sure you know what's supported by goffice, and the details of
> > > what it
> > >  needs (for, say, labels on chart segments).
> > > - Modify the pie/bar-chart generator code for those new parameters.
> > > - Modify the gnc-html-graph-gog code for those new parameters.
> > > - Modify the reports to use the new pie/bar-chart generator code.
> > >
> > >
> > > We're here and happy to help if you have any questions.
> > >
> > > --
> > > ...jsled
> > > http://asynchronous.org/ - a=jsled; b=asynchronous.org; echo ${a}@${b}
> > >
> >
> >
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