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 <[EMAIL PROTECTED]> 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 <[EMAIL PROTECTED]> wrote: > > > "Davide Imbeni" <[EMAIL PROTECTED]> 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… > > > > 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 [EMAIL > > PROTECTED] > > > > _______________________________________________ gnucash-devel mailing list gnucash-devel@gnucash.org https://lists.gnucash.org/mailman/listinfo/gnucash-devel
