Use .marks-before/after to indicate the presence of marks.
As Lapo points out, compatibility with the previous names
is not really that important, since everything else changed
around it.
https://bugzilla.gnome.org/show_bug.cgi?id=766440
It turns out that it is too hard (and in some cases, impossible)
to get this information from node positioning, so bring back the
.scale-has-marks-above/below style classes on the main node.
This should allow us to fix the 'pointy sliders'.
https://bugzilla.gnome.org/show_bug.cgi?id=766440
We're measuring both the width of the minimal and the maximal value for
the value gadget, but only give the value the minimal width for its
current value, resultnig in an always left-aligned value.
Fix this by assigning the width of the value gadget to the value layout
and letting pango align the text inside the layout.
https://bugzilla.gnome.org/show_bug.cgi?id=766120
if (orientation) doesn't make a lot of sense but C doesn't complain and
instead evaluates orientation to TRUE for GTK_ORIENTATION_VERTICAL
(since that's 1), thus inverting the value sizes.
And add a default color like it was before.
This also fixes other issues with scale values interacting with scale
mark labels, which were buggy at least since 3.18.
The way this method is used from the GtkRange subclasses doesn't really
work well when the slider properties change as a consequence of e.g. a
style class being applied (e.g. the fine-tune style class).
In fact, there's no need to read the minimum slider size out of band,
and we can obtain the same result in a way that always work by setting a
private property on GtkRange.
Try harder not to push the scale out of balance by marks. With
this change, the remaining difference in the drawing is down
to asymmetric assets and margins coming out of the theme.
To fully support such asymmetric rendering, we need implement
baseline alignment for scales.
https://bugzilla.gnome.org/show_bug.cgi?id=749650
We don't want scale marks to affect scale sizing and positioning,
so draw them inside the range recangle. This avoids size changes
for marks that don't have labels, at least.
https://bugzilla.gnome.org/show_bug.cgi?id=749650
Instead of issuing g_warning, fill the provided GError.
This lets us test this error handling, and is the right
thing to do. Use the new GtkBuilder helpers and
g_markup_collect_attributes to do so.
