UPDATE: Error on windows starting from gdk_pixbuf_new_from_file doesn't prevent compile but piano not displaying, linux build still builds fine. School has started so not sure when able to fix windows.

findscale

Simple gtk-based application that will display any musical scale in any key on instrument(s). I find this useful for improvising over a chord progression in some key I am unfamiliar with. Initially the only instrument will be piano, but will eventually add guitar and maybe some others.

• using gtk + cairo

To do's

• finish scale overlaying by note. (mostly just need to finish overlays for black keys) DONE

• implement method for inputting a custom scale. DONE

• Clean up the closing process DONE

• Create widget to select different scales at a given key. DONE

• Create widget to make key note changable. DONE

• Clean up freeing of various memory structures.

  • Valgrind analysis

To Build

cd findscale/src/ && gcc -o findscale findscale.c `pkg-config --cflags --libs gtk+-3.0`

Usage

goto findscale/src run

./findscale

and enjoy, coming weeks or so will get around to making it so you do not need to open terminal in order to run it, as well as an make install script. But first need to do some code clean up.

Tools - NO LONGER RELEVANT

This section is more for my own reference, but maybe others will find it useful too.

To generate a compilation database suitable for use with editor tools such as ccls, irony-mode, etc.

Goto the findscale/ directory, use compiledb tool; run

compiledb make

This will create an initial compile_commands.json which, for some tools may be enough and no further work may be necessary. However I haven't found this to be the case. Luckily, there is another tool to fixup compile_commands.json.

compdb tool. Use compdb to process the initial compile_commands.json produced by compiledb and you will end up with a compile_commands.json suitable for parsing by ccls just run;

compdb -p . list > tmp && mv tmp compile_commands.json

Using ccls on ubuntu...

I use ccls on ubuntu and have the following in my .ccls file:

%compile_commands.json
%c -std=c11
%c --gcc-toolchain=/usr
%c -I/usr/lib/gcc/x86_64-linux-gnu/7/include

The include line %c -I/usr/lib/gcc/x86_64-linux-gnu/7/include is needed for ccls to find some of the libc headers (I was getting errors telling me size_t was an invalid type). To find the appropriate -I for your system if you run into such errors is gcc --print-file-name=include.