Remove all stock items added since 2.8, restore accidentially removed
ones, and rename the newly added GIMP_STOCK_* defines to GIMP_ICON_*.
(will move to having GIMP_ICON_* defines instead of magic hardcoded
strings for all icons).
Nobody has them anymore, and they are deprecated in GTK+ 3.x. This
also fixes all conflicting mnemonics except those I missed, but we can
fix them now.
In the "New Image" and "Convert Precision" dialogs. The "Gamma/Linear"
switches get adjusted automatically to the new defaults, but can be
changed manually.
Don't offer dithering options when converting to 16 bit, it doesn't
make much sense to dither for anything but 8 bit. Thanks to Elle for
testing that this assumption is indeed true.
Use a properly commented #define instead of just a hardcoded "8 bits"
to make clear that this is a pure GUI "restriction".
Disable the convert precision dialog's dithering controls when
converting to higher bit depths o to anything > 16 bit.
Make sure the disabled dithering widgets always says "None", which
implies duplicating the bit depth checking logic in both the dialog
and its callback, in order to protect the values in GimpDialogConfig
from being overwritten by NONE.
Keep only one menu item per precision, and have two separate radio
menu items for gamma/linear. Also add gamma/linear radio buttons to
the precision conversion dialog.
- change start() and set_text() to use "format" and "..." instead of
"message", allowing to format progress messages in place
- s/cancelable/cancellable/
- move "cancellable" to be the second argument of start()
For conversions that have no dither options (like RGB -> GRAY or u8 ->
u16), always preserve text editability, for conversions that have
dither options (like RGB -> INDEXED or u16 -> u8), give the user the
choice whether to enable dithering.
