On 19 January 2011 09:27, Cyrille Berger Skott <cber...@cberger.net> wrote: > On Tuesday 18 January 2011, Jaroslaw Staniek wrote: >> On 18 January 2011 15:02, Cyrille Berger Skott <cber...@cberger.net> wrote: >> > On Tuesday 18 January 2011, Boudewijn Rempt wrote: >> >> Doesn't QPicture do something like that already? Or else we might >> >> compare the svg. >> > >> > Well QPicture is a binary format. And I am not sure if SVG would provide >> > easy to use diff. >> >> Well, for my understanding, the binary format is only because of >> specific serialization. At logical level it's a sequence of stokes, >> circles, points, bitmap blits etc., whatever is possible via QPainter. >> Two series can be certainly compared but the question is how to define >> identity relation. Two different sequences can result in eqal pictures >> (in this case the set of items are equal), and conversely two sets can >> be equal but result in different pictures, e.g. because z-order >> matters. > Yes it could help with DPI. Since you could use it to rebuild both QImage by > replaying the original QPicture on a QImage. > > But my problem with it being binary is that a diff is of little value. What I > am hopping with the text format is to be able to run diff, and get this > output: > > -LINE 11.0 -12.1 34.3 2.3 QPEN(255,0,0) > +LINE 12.0 -12.1 34.3 2.3 QPEN(255,0,0) > > And of course if you run that on a big document it might not be that helpfull, > but on smaller unit tests, I am thinking it could give an idea of what went > wrong.
That was my assumption. Since QPicture API does not expose the way how (de)serialization is implemented, how about forking it for our (not really typical) purposes? -- regards / pozdrawiam, Jaroslaw Staniek http://www.linkedin.com/in/jstaniek Kexi & Calligra (kexi-project.org, identi.ca/kexi, calligra-suite.org) KDE Software Development Platform on MS Windows (windows.kde.org) _______________________________________________ calligra-devel mailing list calligra-devel@kde.org https://mail.kde.org/mailman/listinfo/calligra-devel
