If not specified, or "default" is specified (e.g., to override
a higher-up config file setting), it will fallback to what we
have #define'd in fonts.h as PANGO_DEFAULT_FONT, "DejaVu Sans".
It appears to fallback to this (or a reasonable fascimile) if
the font specified by the "uifont" option doesn't exist
(e.g., "tuxpaint --uifont=ABCD1234").
For https://sourceforge.net/p/tuxpaint/feature-requests/146/
Final couple of tests to let us avoid creating a template that's
identical to one that already exists. All told, we test the
following (and the first thing that matches causes us to stop
testing that template, and move on to the next, as it appears
to not be identical to the saved image, in its current state)
+ filename prefix (based on saved image's filename)
+ file size
+ image dimensions
+ image contents (via CRC)
Avoid exporting a saved picture to a new template if one already
exists with both the same filename prefix, and now also identical
file sizes (in bytes).
Bugfix - The export function was always dumping chunks that
were the size of the input buffer, which means the final chunk
(which will frequently be smaller) will contain garbage data
beyond the end.
...based on saved files. So far, only looking for identical
template prefix (which is based on the save file's filename).
Next will be to check other fingerprints, in case the saved file
changed after an earlier template was created.
Example
mkdir /tmp/tp
tuxpaint --datadir /tmp/tp
without this fix, choosing "Template" (make a new templat)
from "Open" dialog would result in an error, since
`/tmp/tp/templates` did not exist.
We now `mkdir()` it. This requires, of course, that the
directory specified by `--datadir` _itself_ exists. (We will
not attempt to create anything higher up.)
Places where we attempt to save thumbnails of starters & templates
was trying to `mkdir()` a `.thumbs/` subdirectory in non-existent
`starters/` and `templates/` subdirectories of the "savedir"
location; should be the "datadir" one.
To replicate
mkdir -p /tmp/tp/starters
cp SOMEFILE.png /tmp/tp/starters
tuxpaint --datadir /tmp/tp
then click "New"; observer the warning
Error: Couldn't save thumbnail of saved image!
/tmp/tp/starters/.thumbs/SOMEFILE.png
The error that occurred was:
No such file or directory
When specifying "datadir", Tux Paint's "New" dialog
was able to present templates found in that directory,
but would attempt to load from whatever the user's
"savedir" was, instead.
h/t Giancarlo Orru for reporting the bug.
https://sourceforge.net/p/tuxpaint/feature-requests/238/
h/t Pere for the suggestion
Needs to support color, thickness (size controls), and have
a round brush shape (anti-aliased would be nice, considering
the objective is smoothness ;-) )
