This makes the code compile again, though obviously there have been
some substantial changes in how IM contexts work, so it's possible
that IME IM context doesn't work now.
https://bugzilla.gnome.org/show_bug.cgi?id=773299
Check for freetype2 version, because pangoft works with any version
(pangoft availability does not indicate that ft2 is new enough), unlike
GTK.
On Windows, since pangoft is optional, we check for the presence of
freetype2 .pc file first after finding that we have pangoft, and then
check for FT_Get_Var_Design_Coordinates() manually by looking for the
freetype headers and .lib first, and then looking for the presence of
that symbol, since freetype2's Visual Studio build system does not
generate a .pc file for us.
https://bugzilla.gnome.org/show_bug.cgi?id=773299
The main buildscript expects 'print_backends' list to be defined.
Since printbackends is os_unix-only, we need to define this list
ourselves for other OSes.
https://bugzilla.gnome.org/show_bug.cgi?id=773299
Turn the GtkFontChooserLevel field into flags, and
add flags for OpenType variations and features. The
motivation for this is to make font-features in the UI
opt-in, since applications need to support them by
applying the pango attribute.
Meson warns when doing that, as it's not really portable.
Since we're using platform-specific linker flags on Darwin, we can also
do the same on Linux; the syntax is GCC-specific, so we're going to need
Clang users to test it.
Adding the offset node broke serialization in 2 ways:
1. We store the enum value in the node, so make sure to not change it
for existing values
2. The offset node was missing in the deserialization lookup table
Instead of fiddling around with scale in the iconhelper (and getting it
wrong), create a GtkScaler around the paintable that takes care of the
scaling.
This is the equivalent snapshot function to pango_cairo_show_layout().
Not to be confused with gtk_snapshot_render_layout(), which is the
equivalent to gtk_render_layout().
This is a special case of the transform node that does a 2D translation.
The implementation in the Vulkan and GL renderers is crude and just does
the same as the transform node.
Nothing uses that node yet.
When drawing onto a recording surface, source surfaces get cached.
But if we g_free() the surface data after we're done, that cache is
gonna point at invalid data...
If G_ENABLE_CONSISTENCY_CHECKS is defined (i.e. if our buildtype is
'debug'), add a opengl debug callback that prints all debug messages
with a severity higher than SEVERITY_NOTIFICATION as a warning to the
console.
