Rename our internal GActionMuxer, GActionObserver and GActionObservable
classes and interfaces to have names in our own namespace.
These classes were originally intended for GIO but turned out to be too
special-purpose to be useful there, so we never made them public API but
have just been copying them around (without bothering to properly rename
them). Now that other people will be copying them out of Gtk, it's even
more important to prevent this namespace abuse from spreading further.
Newer versions of GCC/binutils must have the source file come before the
preprocessor and linker flags on the compiler command line, and this is
also compatible with previous versions.
https://bugzilla.gnome.org/show_bug.cgi?id=680241
This commit implements the needed machinery for GtkWidget
to build it's composite content from GtkBuilder XML and
adds the following API:
o gtk_widget_init_template()
An api to be called in instance initializers of any
GtkWidget subclass that uses template XML to build it's components.
o gtk_widget_class_set_template()
API to associate GtkBuilder XML to a given GtkWidget subclass
o gtk_widget_class_automate_child()
API to declare an object built by GtkBuilder to be associated
with an instance structure offset and automatically set.
o gtk_widget_get_automated_child()
API for bindings to fetch a child declared to be automated by
gtk_widget_class_automate_child(), for the case where bindings
do not generate GObjects under the hood and cannot use structure
offsets to resolve composite object pointers.
o gtk_widget_class_declare_callback[s]()
Declare static functions to be used in signal callbacks from
a given class's template XML
o gtk_widget_class_set_connect_func()
API for bindings to override the signal connection machinery
for a given GtkWidget derived class.
In preperation for composite objects, for better encapsulation
the following APIs are added to allow handling of signals declared
in the XML with callbacks declared statically.
o gtk_builder_add_callback_symbol[s]()
Adds a symbol to the internal symbol hash
o gtk_builder_lookup_symbol()
Looks up a symbol, exposed in case added symbols are used
in conjunction with gtk_builder_connect_signals_full()
The default implementation of gtk_builder_connect_signals() now
does not have a strong requirement on GModule (or a strong requirement
on symbols being declared in the global namespace). Instead GModule
is used as a fallback in the case that symbols are not declared
explicitly.
It's more logical to have the GtkTextAttributes and GtkTextAppearance
structs together. And it creates a separation between gtk_text_tag and
gtk_text_attributes functions.
https://bugzilla.gnome.org/show_bug.cgi?id=697048
