This patch increases the LCH Chroma slider maximum value from 100 to
200 and also makes the Chroma slider properly display out of gamut
Chroma selections for any given Hue/Lightness combinations.
The current Chroma slider only runs to 100. But quite a few sRGB
colors have LCH chroma values that are greater than 100. For example
reddest red has a chroma of 107, and bluest blue has a chroma of 131.
So it's inconvenient to have to deal with a Chroma slider limit of
100.
Also, the current Chroma slider doesn't properly show out of gamut
areas on the Chroma slider. So for example picking a given LCH Hue and
then moving the Lightness slider doesn't allow to see which Lightness
value allows for choosing the maximum in-gamut chroma for the chosen
Hue.
If the compiler supports destructors (which should cover at least
GCC and Clang), pair the call to babl_init() in gimp_widgets_init()
with a call to babl_exit() when the library in unloaded. This is
important in particular since the babl fish cache is constructed/
updated upon the last matched call to babl_exit().
libgimpwidgets now needs an initialized babl if color selectors are
used, call babl_init() in gimp_widgets_init(). It can be safely called
redundantly.
Commit 1e6acbd4e1 modified the
generated enum recipes to run gimp-mkenums from the source
directory, instead of the build directory, so that only the
basenames of the corresponding header files would appear in
the comment at the top of the generated files. This was a
mistake -- $(GIMP_MKENUMS) is expecting to be invoked from the
build directory.
Switch back to running gimp-mkenums from the build directory. To
avoid including the relative path from the build directory to the
source directory in the generated file, add a @basename@ production
variable to gimp-mkenums, which exapnds to the basename of the
input file, and use it instead of @filename@ in the recipes for the
generated enum files.
When regenerating an enum file, don't copy it back to the source
directory if it hasn't actually changed. This allows using a read-
only source directory where the enum header is newer than the
generated file, as long as they're not really out of sync.
OTOH, *do* touch the generated source-dir file even when unchanged,
in order to avoid re-running its recipe on the next build, however,
allow this to silently fail (which is harmless).
Last bit for now: allow GimpColorScales' spinbuttons to go further
than its color scales. Please review the new min/max values of the
individual channels.
Always use separate GtkAdjustments for the scale and the spinbutton,
and link them with a GBinding, either 1:1 or using logarithmic
transform functions.
This change also enables modifying both widgets' ranges independently
after construction, thus enabling the "constrain" feature also for
gimp_color_scale_entry_new().
Add LCH to the color selectors, patch by Elle Stone and myself.
- Extend enum GimpColorSelectorChannel by LCH channels
- Support them in GimpColorScale, GimpColorScales and GimpColorSelect
- Did not yet remove the HSV channels until things are working 100% ok
- Change drawing in GimpColorSelect to be much faster, to compensate
for babl_process() making the LCH modes pretty slow
- Clean up stuff in GimpColorSelect
This is WIP and should not be considered finished, biggest TODO is
displaying out-of-gamut values in GimpColorScales' spinbuttons.
We check them into git, so this makes it easier to keep them in
sync when using a separate build directory.
Case in point -- this commit also syncs a few enum files that went
out-of-sync with their headers.
One cannot just use the min/max values since the precision digits must
also be accounted for (as well as one additional character for the
decimal separator).
Current implementation is not perfect yet because GimpSizeEntry code
itself does not yet use gimp_unit_get_scaled_digits(). Moreover the
entry size could be updated when changing units (or the original size
be actually based of the bigger width considering every possible unit).
This is a bad hack that hardcodes a special case for
GIMP_TYPE_DESATURATE_MODE right into gimp_prop_enum_combo_box_new(),
we should think of something better if we get more special cases.
Try to sort all GIMP_ICON_* defines into FDO categories like in
https://specifications.freedesktop.org/icon-naming-spec/latest/ar01s04.html
Add defines for all icons we override, rename some icons to their FDO
standard names, and mark the ones we duplicate with a comment so we
don't forget to rename those to standard names in 3.0.
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).
Still using perceptual TRC - making 50% middle gray. This for all of 8bit and
16bit integer, as well as for floating point precisions. Also added a decimal point, to make use of more precision for both RGB and HSV entries.
If the store has invalid enum values the function segfaults,
instead of just ignoring them. We use -1 to represent separator
rows in the layer mode combo; if we end up adding icons to this
combo, we need it... not to segfault. Since this is public API,
it should probably be prepared to handle such uses regardless.
...(scroll up decreases the value)
Implement GtkWidget::scroll_event() and turn GDK_SCROLL_UP into RIGHT
and DOWN into LEFT. The default behaviour or good for scrollbars but
not for widgets where "right" == "higher value" == "up" like
GimpColorScale.
Commit 82737bf got rid of the only pieces of code where these icons were
used. Since they were never available in any version release of GIMP,
let's delete them from libgimpwidgets API as well.
These are file search paths, not vector shape paths, so the new icons
were using the wrong metaphor.
This reverts the only functional part of commit
92a9117ae0, we should
probably get rid of the icons too (they are now unused).
Elle Stone