.. instead of an opengl canvas lets start with a Web canvas.
.. we might have options to use QtCharts or OpenGL later.
.. not working - committed to save WIP.
.. With german translation activated GC.activity() complains about
some utf-8 decoding stuff and returns error.
First I thought came from the real activity json file, but it's
from translation: Altitude -> Höhenmeter.
Is it necessary to use toLatin1() in goldencheetah.sip? With
toUtf8() it works and you get delta symbols instead of question marks.
.. With R the series names are always in english and use a naming
convention derived from the R trackR package -- we now follow the
same in Python bindings to ensure charts created in one locale
will continue to work in another.
Adding __getitem__ makes it to behave like a sequence enabling indexing
and iteration,for example:
s = GC.series(6)
print(s[0], s[-1])
for v in s: print(s)
l = list(s)
print(l.count(0))
.. very basic API as we develop out, it just returns a dict
for now. Need to expand to enable returning a list if
compare mode is active (like R).
.. implemented in a new source file Resources/python/library.py
which is loaded directly after the interpreter is loaded at
startup.
.. also updated src.pro to add library.py and goldencheetah.sip
to OTHER_FILES so they can be edited easily in QtCreator.
.. start of API to work with ride data, exposing the raw
sample data via the buffer protocol python api and SIP
.. adds utility functions that will ultimately be wrapped
inside a python class/function:
GC.series(n) - return series data as a python array
GC.seriesName(n) - return string describing series data
GC.seriesLast() - returns int for last series type
GC.seriesPresent(n) - returns True if series in ride
.. example of using these functions in python to create a
dict object collecting all available data:
activity = {}
for x in range(0, GC.seriesLast()):
if (GC.seriesPresent(x)):
activity[GC.seriesName(x)] = GC.series(x)
.. simple examples, lots of generated code changes which is
not very helpful.
.. but the only files that were edited by hand are goldencheetah.sip
Bindings.h and Bindings.cpp
Basic proof of concept for CPP binding using SIP but with
our own type conversion (to avoid overhead of SIP lib/deploy).
Its far from perfect but will serve as a starting point.
.. needed to fixup type conversion in goldencheetah.sip to
convert returning QString as PyUnicode
.. needed to fixup passing context when multi-threaded
.. needed to fixup Bindings.h/cpp to offer new API
.. Using SIP thats used in PyQt et al we have a module
called `goldencheetah' which includes bindings.
Currently there is only a single method `getValue()'
that returns 1. It's to get the basic plumbing in place.
src/Python/SIP contains all the files related to the
module. The cpp files are generated by the `sip' utility
which will need to be available if you want to work on the
bindings. Run make -f Makefile.hack to regenerate the cpp
files if you edit them.
I prefer to distribute the generated files at this point
whilst development occurs. We may change that at a later
date.
.. Please note that the gcconfig.pri.in file has changed as
we now include the python include path rather than set a
macro for the include directive (See PYTHONINCLUDES in
gcconfig.pri.in)
.. lastly, to test this is working in a python chart console:
> print(GC.getValue())
1
>
.. runs in thread to avoid blocking GUI actions but GUI
will still wait for script to complete. ESC is trapped,
but mechanism to stop script not implemented yet.
.. added a python chart type, it doesn't execute code
yet. Just a reimplementation of the RChart UX
.. next we need to trap output and run code on selection
before proceeding to setting an API for Data and Charting
.. just bootstrapping, so Python is loaded and version
number made available in the about box.
.. see gcconfig.pri.in and src.pro for settings needed
.. not considering threading etc at this point
