Make GimpDockWindow implement the GimpDockContainer interface. The
plan is to make GimpImageWindow also implement the GimpDockContainer
interface when we start to session manage docks in single-window mode.
Since the order of docks in a dock window is arbitrary, it can never
be correct to only care about the first dock. Remove
gimp_dock_window_get_dock() and correct that code that made use of
it. (The function itself was introduced when there could only be one
dock per dock window.)
Get rid of 'global_toolbox_factory' and manage everything dock-related
with 'global_dock_factory'. The whole of 'global_toolbox_factory' was
a big special-case and getting rid of it makes it easier to extend the
session management with e.g. single-window mode dock functionality.
To get rid of 'global_toolbox_factory' we, roughly, have to
* Replace 'global_toolbox_factory' with 'global_dock_factory'
everywhere. We can also get rid of lots of code that did special
things for the "toolbox" factory.
* Make the use or interaction with the toolbox explicit in some
places. For example, a function gimp_dock_window_has_toolbox() has
been introduced.
* Make GimpSessionInfoDock have an 'identifier' parameter so we can
differentiate between the "gimp-dock" and "gimp-toolbox" dock
types.
Move the Image Selection Menu from GimpMenuDock to
GimpDockWindow. That is, if a dock window contains many docks then
they will share the same Image Selection Menu.
To do this we need to move around quite a bit of code. Move the
"context", "dialog-factory" and "ui-manager" properties from GimpDock
to GimpToolbox, GimpMenuDock doesn't need it any longer. Turn the
GimpDock getters for these properties into wrappers that go to the
GimpDockWindow properties. In some places, most notably GimpToolbox
construction, we use the GimpToolbox values of these properties, but
most of the time it works fine to just use the GimpDockWindow
properties. GimpDock::setup() and set/get_aux_info() have also been
moved to GimpDockWindow since the only aux info for docks was for the
image selection menu.
Also, we don't bother porting gimp_menu_dock_destroy() to
GimpDockWindow, but we leave the code around. If this is a problem, it
will show.
Put a GimpDockColumns inside GimpDockWindow so that there can be more
than one dock inside a dock window. For now,
gimp_dock_window_get_dock() returns the first dock. Eventually need to
return all docks and refactor the other code as needed.
In preparation for making GimpDock inherit from a non-window, stop
casting GimpDocks to GimpDockWindows. Instead look up the toplevel
widget for a dock and get the dock window that way.
Move the dock window related themeing namely default dock heght and
font scale from GimpDock to GimpDockWindow to get rid of yet another
GtkWindow dependency from GimpDock.
Note that this change requires gtkrc updates where "GimpDock::" needs
to be repaced with "GimpDockWindow::".
Move the GimpUIManager from GimpImageDock to GimpDockWindow. This
includes making the ui_manager_name class-member of GimpImageDock a
normal instance member of GimpDockWindow since the UI manager name no
longer can be configured at the class level.
Introduce GimpDockWindow and make GimpDock inherit from it. Right now
it is just a GimpWindow, but window logic from GimpDock and subclasses
will gradually be moved here so that we eventually can make GimpDock a
GtkBin. That in turn will allow us to put several GimpDocks next to
each other in columns, or GimpDocks in an image window.