This is meant to obsolete GeglParamColor with at least an additional argument
has_alpha which we need in GIMP. It allows to advertize when a parameter wants
an opaque color, which in particular means we know when displaying a GUI to pick
colors with alpha or not.
- Make sure the led color is set at init().
- Unlike old GimpRGB code, values' colors must be set explicitly first.
- Make the Gimp object into a property (this one is not a problem right now, but
it's better this way).
- Don't assume the Gimp object is non-NULL. In current code, it is set to NULL.
The only consequence is that we don't use color management settings to draw
with Cairo. For this widget anyway, it feels unnecessary.
which means that it's now included normally via gimpbase.h
and not any longer via gimpbasetypes.h which we only did out
of lazyness. A *lot* of files in libgimp* and app/ now need to
... and G_TYPE_INSTANCE_GET_PRIVATE()
g_type_class_add_private() and G_TYPE_INSTANCE_GET_PRIVATE() were
deprecated in GLib 2.58. Instead, use
G_DEFINE_[ABSTRACT_]TYPE_WITH_PRIVATE(), and
G_ADD_PRIVATE[_DYNAMIC](), and the implictly-defined
foo_get_instance_private() functions, all of which are available in
the GLib versions we depend on.
This commit only covers types registered using one of the
G_DEFINE_FOO() macros (i.e., most types), but not types with a
custom registration function, of which we still have a few -- GLib
currently only provides a (non-deprecated) public API for adding a
private struct using the G_DEFINE_FOO() macros.
Note that this commit was 99% auto-generated (because I'm not
*that* crazy :), so if there are any style mismatches... we'll have
to live with them for now.
In GimpMeter, use cairo_path_extents() for getting the history
graph's extents, rather than cairo_clip_extents(), since the latter
may also include clipping applied by GTK.
When defining a dashboard group, allow specifying multiple
variables as input to the group meter's LED. The LED is active
when any of the specified variables evaluates to TRUE, and its
color is the combination of the active variable colors.
Remove the swap-busy variable, and use swap-reading and
swap-writing as inputs to the swap group's LED instead, so that the
LED's color indicates whether the swap is currently being read-
from, written-to, or both.
Allow controlling the gauge/history visibility, and the history
interpolation method, of individual values.
Improve redraw elision when some values are hidden.
GimpMeter visualizes a set of values that change over time. It
consists of a gauge, showing the most-recent sampled values, a
history graph, showing a plot of the values over time, and an LED,
which can be used as a boolean indicator for some condition.
GimpMeter is used in the dashboard dockable, added in the next
commit.
