2005-09-01 Matthias Clasen <mclasen@redhat.com>
* gdk/*.c: Intern some more strings.
* gtk/gtkintl.h:
* gtk/*.c: Define an I_() macro and use it instead of the
bulky g_intern_static_string().
2005-08-31 Matthias Clasen <mclasen@redhat.com>
* gdk/Makefile.am:
* gtk/Makefile.am: Intern type names in code generated by
glib-mkenums, too.
* gtk/*.c:
* gdk/x11/*.c:
* gdk/*.c: Intern type names before registering the type to avoid
unnecessary copies.
2005-07-21 Tor Lillqvist <tml@novell.com>
* gtk/gtksocket.c
* gtk/gtkplug.c: Splice out backend-dependend parts to separate
files, see below.
* gtk/gtksocketprivate.h
* gtk/gtkplugprivate.h: New files. Declare the backend-specific
functions, and the private backend-independent functions they call
back to.
2005-03-20 Matthias Clasen <mclasen@redhat.com>
Make PLT-reduction work with gcc4, and don't include
everything in gdkalias.h:
* gtk/grk.symbols: Group symbols by header and source file.
* gtk/makegtkalias.pl: Protect definitions by the same
preprocessor symbols used to guard the headers. Move
the alias declarations to a separate file which is
produced when calling makegtkalias.pl -def
* gdk/Makefile.am (gtkaliasdef.c): Add a rule to generate
this file.
* gtk/*.c: Include gtkalias.h after the other headers,
include gtkaliasdef.c at the bottom.
* gtk/*.h: Small cleanups.
Mon Aug 9 12:48:04 2004 Matthias Clasen <maclas@gmx.de>
Add hidden aliases for exported symbols which are
used internally in order to get rid of many PLT
entries. (#145519, Arjan van de Ven)
* gtk/Makefile.am: Add rules to generate gtk.def and
from gtk.symbols, and make make check check the abi
with abicheck.sh.
(gtk_private_h_sources): Add gtkinternals.h
(gtk_built_private_headers): Add gtkalias.h
(gtk_extra_sources): Add gtk.symbols
(EXTRA_DIST): Add makegtkalias.pl and abicheck.sh
* gtk/gtk.symbols: New file. Definition of the GTK+ ABI.
The file can be processed by cpp to filter out certain
subsets of symbols.
* gtk/abicheck.sh: New file. Script to check the actually
symbols exported from libgtk-x11.2.0.so against the symbols
found in gtk.symbols.
* gtk/makegtkalias.pl: New file. Perl script to generate the
header containing the alias definitions for internally used
exported symbols from a list of symbols.
* gtk/gtkinternals.h: New file. An uninstalled header listing
symbols which must be exported for some reason and do not appear
in any other header.
* gtk/*.c: Include gtkalias.h
Sat Jul 3 02:09:51 2004 Matthias Clasen <maclas@gmx.de>
* gtk/gtksocket.c (gtk_socket_end_embedding): Reset current_width
and current_height to 0 when ending the embedding. (#143675,
Nickolay V. Shmyrev)
2004-03-05 Federico Mena Quintero <federico@ximian.com>
Fixes#136082 and #135265, patch by Morten Welinder.
* configure.in: Use AC_SYS_LARGEFILE.
* */*.c: #include <config.h>
Thu Mar 4 16:54:30 2004 Owen Taylor <otaylor@redhat.com>
* gtk/gtkrc.c (gtk_rc_check_pixmap_dir): Don't
open/close the file, just check for existence
with g_file_test(). This is considerably cheaper,
and lack-of-permissions for pixmap dirs is
pathological.
Wed Mar 3 17:53:21 2004 Owen Taylor <otaylor@redhat.com>
* gtk/gtksocket.c (gtk_socket_class_init): Overide
show_all/hide_all to be gtk_widget_show/gtk_widget_hide,
since we don't want to propagate to the in-process
plug, if any. (#122949, Michael Meeks)
2003-09-10 Matthias Clasen <maclas@gmx.de>
* gtk/gtksocket.c (gtk_socket_filter_func): Only remove
PropertyNotify events from the stream if they have been handled,
in order to enable extending the plug<->socket communication via
properties.
Wed Aug 20 21:26:49 2003 Owen Taylor <otaylor@redhat.com>
* gtk/gtkplug.c (gtk_plug_focus): Send the focus on
to the parent when there was no focus widget before
and no focus widget after - that is, when there are
no focusable widgets. (#108678, help tracking it
down from Padraig O'Briain, Federico Mena Quintero, )
* gtk/gtkxembed.[ch]: Move various shared utilities
for the XEMBED protocol eused by GtkPlug and GtkSocket
here.
* gtk/gtkxembed.[ch] gtkplug.c gtksocket.c: Implement
a flag bit that is sent with focus mesages to indicate
that the focus has wrapped around on the toplevel;
use this bit to catch infinite loops when there is no
focusable widget at ll in the entire toplevel.
* tests/testsocket.c (child_read_watch): Remove an
extraneous unref.
* gtk/gtkplug.c gtk/gtksocket.c gtk/gtkxembed.h:
Up XEMBED protocol version to 1, add logic for
sending the right version in XEMBED_EMBEDDED_NOTIFY.
* gtk/gtksocket.c (gtk_socket_add_window): Send
the embedder window in the XEMBED_EMBEDDED_NOTIFY
as the spec requires.
Fri Aug 1 15:33:59 2003 Owen Taylor <otaylor@redhat.com>
* gtk/gtksocket.c: Patch from Denis Mikhalkin to
forward KeyRelease events as well as KeyPress events.
(#115597)
Mon Apr 21 19:02:16 2003 Owen Taylor <otaylor@redhat.com>
* gtk/gtksocket.c (activate_key): Fix prototype for
activate_key. (#108927, Jason D. Hildebrand)
Mon Jan 27 16:19:59 2003 Owen Taylor <otaylor@redhat.com>
* gtk/gtksocket.c (gtk_socket_filter_func): event->any.window
might be NULL. Use gtk_widget_get_display (widget)
(#102860, Thomas Leonard)
Sun Oct 13 12:29:15 2002 Manish Singh <yosh@gimp.org>
* gtk/gtkcolorsel.[ch] gtk/gtkcombo.[ch] gtk/gtkplug.[ch]
gtk/gtksocket.[ch] gtk/gtktreeview.[ch] gtk/gtktreeviewcolumn.[ch]:
Deprecation cleanup
* gtk/gtkcolorseldialog.c: make window not resizable (lost
accidently in the previous cleanup)
* gtk/gtksocket.c (gtk_socket_hierarchy_changed):
Use hyphen instead of underscore in signal names in calls to
g_signal_connect_swapped (Fixes bug #86339)
Fri May 17 17:27:21 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkwindow.c gtk/gtkwidget.c: Add a "is_focus"
property indicating whether a widget is the focus
widget within the toplevel.
* gtk/gtkwindow.[ch]: Add "is_active" "has_toplevel_focus"
properties to indicate (separately) the idea of
being the part of the toplevel with the input focus
and being the active widget. (Needed for full XEMBED
compliance.)
* gtk/gtkplug.c gtk/gtksocket.c: Update to work
in terms of is_active/has_toplevel_focus, and thus
handle the active/focused XEMBED distinction
correctly.
* gtk/gtkplug.c (gtk_plug_realize): Remove
FOCUS_CHANGE_MASK, since we don't need it.
Fri May 17 18:07:34 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtksocket.c (gtk_socket_add_window): Send
XEMBED_EMBEDDED_NOTIFY.
* gtk/gtksocket.c: Assume windows without _XEMBED_INFO
property want to be mapped, for better
current-Qt compatibility.
Thu May 16 19:49:24 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkwindow.c (gtk_window_configure_event): Only
optimize out the full configure handling if we got
a gratuitous configure event(configure_request_count == 0)
and the size didn't change.
* gtk/gtkwindow.c (gtk_window_move_resize): Use
g_message(), not g_print() for debug spew.b
* gtk/gtkwindow.c (gtk_window_real_set_focus): Ref
the old and new focus widgets for the scope of
the function.
* gtk/gtksocket.c gtkplug.c: Remove various #if 0'd
bits of old code.
Mon Apr 29 18:28:00 2002 Owen Taylor <otaylor@redhat.com>
Integrate Erwann Chenede's multihead changes for the gtk/ directory.
* gtk/gtkclipboard.[ch]: Add gtk_clipboard_get_for_display(),
make internals multihead aware.
* gtk/gtkcolorsel.[ch]: Add
gtk_color_selection_set_change_palette_with_screen_hook () [ugh!]
make up for non-multihead safety of
gtk_color_selection_set_change_palette_hook()
* gtk/gtkinvisible.[ch] gtk/gtkmenu.[ch] gtkwindow.[ch]: Add
gtk_{invisible,menu,window}_set_screen(); add "screen" properties
for GtkWindow and GtkMenu.
* gtk/gtkplug.[ch]: Add gtk_plug_construct_for_display(),
gtk_plug_new_for_display(). Multihead fixes.
* gtk/gtkselection.[ch]: Add gtk_selection_owner_set_for_display(),
make internals multihead aware.
* gtk/gtksettings.[ch]: Add gtk_settings_get_for_screen(), get
rid of now-useless gtk_settings_constructor().
* gtk/gtkstyle.[ch]: Add gtk_style_get_font_for_display(), fix
check/radio button indicators bitmap handling to be multihead
safe.
* gtk/gtkwidget.[ch]: Add gtk_widget_get_screen(), gtk_widget_has_screen(),
gtk_widget_get_display(), gtk_widget_get_clipboard(),
gtk_widget_get_root_window().
* gtk/gtkbindings.c gtk/gtkbutton.c gtk/gtkclist.c gtk/gtkcombo.c
gtk/gtkctree.c gtk/gtkdnd.c gtk/gtkfilesel.c gtk/gtkgamma.c
gtk/gtkhandlebox.c gtk/gtkhsv.c gtk/gtkimcontext.c gtk/gtklabel.c
gtk/gtklist.c gtk/gtkmain.c gtk/gtkmenuitem.c gtk/gtkmenushell.c
gtk/gtknotebook.c gtk/gtkoldeditable.c gtk/gtkoptionmenu.c
gtk/gtkpaned.c gtk/gtkpreview.c gtk/gtksocket.c gtk/gtktext.c
gtk/gtktextbuffer.c gtk/gtktextview.c gtk/gtktipsquery.c
gtk/gtktooltips.c gtk/gtktreeview.c gtk/gtktreeviewcolumn.c:
misc mechanical multihead-safety fixes.
* gtk/gtkclipboard.c: Use a GtkImage rather than a pixmap for
the dropper, look up the color palette only at realization time,
other multihead fixes.
* gtk/gtkcombo.c (gtk_combo_unrealize): Popdown the list when
unrealizing.
* gtk/gtkentry.c: Only claim ownership of the primary selection
when realized, misc multihead fixes.
* gtk/gtkfontsel.c: Only fill in fonts when attached to a screen,
fix gtk_font_selection_get_font() for multihead.
* gtk/gtkgc.c: make the depth => drawable hash per-screen.
* gtk/gtkinvisible.c: Add a constructor that realizes the
widget, so we get a realized widget with g_object_new() as
well gtk_invisible_new() as before.
* gtk/gtkmain.c: Get rid of unused gtk_visual/gtk_colormap
variables.
* gtk/gtktextdisplay.c: Add warnings if stipple bitmaps
are used on the wrong screen.
* gtk/gtktoolbar.c: Make handling of GtkSettings-based layout
read properties and connect to settings when the screen is changed,
rather than on init/finalize.
* gtk/gtkwindow.c: Fix icon handing to be multihead safe ...
default icon pixmaps/mask are only shared between windows on the
same screen. Misc multihead fixes.
Sat Apr 27 13:49:53 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkclipboard.c (gtk_clipboard_get_for_display):
Update docs to reference GDK_SELECTION_CLIPBOARD rather GDK_NONE.
2002-04-29 Alex Larsson <alexl@redhat.com>
* gdk/linux-fb/gdkproperty-fb.c (gdk_property_get):
Fix silly bug, noticed by Sven Neumann.
Sun Apr 28 22:43:55 2002 Jonathan Blandford <jrb@gnome.org>
* gtk/gtktreemodelsort.c (gtk_tree_model_sort_set_sort_func): Fix
so that you can set a new sort func.
Sun Feb 24 21:18:20 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtksocket.c (gtk_socket_end_embedding): Fix
off-by-one error. (Pointed out by Anders Carlsson)
Sat Jan 26 19:27:23 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtksocket.c (gtk_socket_grab_notify): Don't
send MODALITY_ON/OFF if socket->same_app (More fixes for #69735)
* gtk/gtkplug.c, gtk/gtksocket.c: Speak of window IDs rather
than XIDs in the docs.
* gtk/gtkclipboard.c (gtk_clipboard_clear): Fix docs.
* gtk/tmpl/gtksocket.sgml, gtk/tmpl/gtkplug.sgml: speak of
window IDs rather than XIDs.
Thu Dec 27 14:04:22 2001 Owen Taylor <otaylor@redhat.com>
* gtk/gtksocket.c (gtk_socket_key_press_event):
gtk/gtkplug.c (gtk_plug_key_press_event): Don't do
special handling of key presses unless we are doing
iter-app embedding. (Fixes#67590, Anders Carlsson)
Wed Nov 28 18:37:04 2001 Owen Taylor <otaylor@redhat.com>
* gtk/gtksocket.[ch] (gtk_socket_add_id): Rename 'id' parameter
to avoid problems with Objective C.
Sat Nov 17 18:26:45 2001 Owen Taylor <otaylor@redhat.com>
* gtk/Makefile.am gtk/gtkmarshal.list gtk/gtkmarshalers.list
gtk/*.c gtk/gtksignal.h: Make gtkmarshal.list/gtkmarshal.h
only for compatibility with GTK+-1.2; and deprecate it;
put all marshalers we actually use into gtkmarshalers.list
and use the _gtk_marshal_ prefix for these marshalers.
2001-11-01 Michael Meeks <michael@ximian.com>
* gtk/gtksocket.c (gtk_socket_unrealize): unset the
GTK_REALIZED flag so we don't re-enter when we are
destroyed from the plug side.
Sun Oct 21 23:27:00 2001 Owen Taylor <otaylor@redhat.com>
* gtk/gtkwidget.c (gtk_widget_translate_coordinates): Fix
problem with g_return_if_fail return value.
* gdk/x11/gdkproperty-x11.c docs/Changes-2.0.txt: Move over the
virtual atom code from the gdk-multihead branch, removing the per-display
part. Virtualizing atoms needs to be done now to prevent compat
breakage in direct Xlib accessing code in the future. (#62208)
* gdk/x11/gdkx.h: gdk/gdk/x11/gdkproperty-x11.c: Export
gdk_x11_xatom_to_atom, gdk_x11_atom_to_xatom().
* gdk/gdktypes.h docs/Changes-2.0.txt: Make GdkAtom
an opaque pointer type so the compiler catches attempts
to mingle it with X atoms.
* gdk/x11/{gdkdnd-x11.c,gdkevents-x11.c,gdkglobals-x11.c,
gdkkeys-x11.c, gdkmain-x11.c, gdkprivate-x11.c,
gdkproperty-x11.c, gdkselection-x11.c, gdkwindow-x11.c}
gtk/{gtkclist.c,gtkctree.c,gtkdnd.c,gtkplug.c,gtksocket.c}
tests/testdnd.c,tests/testselection.c:
Fix up for above atom changes.
* gdk/gdkselection.h (GDK_SELECTION_CLIPBOARD): Add, since we
now have the ability to add custom predefines.
* gtk/{gtkentry.c,gtklabel.c,gtkoldeditable.c,gtktextview.c}:
Use GDK_SELECTION_CLIPBOARD instead of GDK_NONE in calls
to gtk_clipboard_get().
* gdk/win32/gdkproperty-win32.c: Add CLIPBOARD, fix up
for GdkAtom => pointer change.
* gdk/linux-fb/gdkproperty-fb.c: Fix handling of predefined
atoms, fix for GdkAtom => pointer change.
Thu Sep 20 11:03:51 2001 Owen Taylor <otaylor@redhat.com>
* gtk/gtkobject.c gtk/gtklist.c gtk/gtkplug.c gtk/gtksocket.c
gtk/gtktreemodelsort.c gtk/gtktreeview.c: Small warning cleanups.
* gtk/gtkradiomenuitem.c (gtk_radio_menu_item_get_group): Change
the function definition so we don't accidentally rely on
the compat #define from gtk_radio_menu_item_group.
(#60782, Jeff Franks)
2001-09-08 Havoc Pennington <hp@pobox.com>
* gtk/gtk-sections.txt: put GtkPacker back in here so it won't be
in gtk-unused.txt, but don't put it back in gtk-docs.sgml.
Tons of other additions from gtk-unused.txt, but mostly skipping
all the tree stuff for now.
2001-09-08 Havoc Pennington <hp@pobox.com>
* gtk/gtktreeviewcolumn.c (gtk_tree_view_column_add_attribute):
docs fixes
* gtk/gtktable.c (gtk_table_get_col_spacing): docs fixes
* gtk/gtkspinbutton.c (gtk_spin_button_get_increments): docs fixes
* gtk/gtksocket.c (gtk_socket_steal): docs fixes
* gtk/gtkscrolledwindow.h: docs fixes
* gtk/gtkimage.c (gtk_image_new): docs fixes
Fri Sep 7 11:51:44 2001 Owen Taylor <otaylor@redhat.com>
Make gdkx.h the only installed header from gdk/x11.
All structures in gdk/x11 are opaque.
* gdk/x11/Makefile.am gdk/x11/gdkx.h gdk/x11/gdkprivate-x11.h:
Don't install gdk{drawable,pixmap,window}-x11.h.
* gdk/x11/{gdkcolormap-x11.c, gdkfont-x11.c, gdkx.h, gdkvisual-x11.c:
Move GdkColormapPrivateX11, GdkFontPrivateX GdkImagePrivateX11,
GdkVisualClass into C files.
* gdk/gdkpixmap-x11.[ch]: Make gdk_pixmap_impl_get_type() static.
* gdk/x11/{gdkcolor-x11.c, gdkcursor-x11.c, gdkdrawable-x11.c,
gdkfont-x11.c, gdkgc-x11.c, gdkx.h, gdkimage-x11,gdkvisual-x11.c}
Add public functions to replace previously exported direct
structure access.
gdk_x11_colormap_get_{xdisplay,xcolormap}
gdk_x11_cursor_get_{xdisplay,xcursor},
gdk_x11_drawable_get_{xdisplay,xcursor,gdk_x11_visual_get_xvisual,
gdk_x11_font_get_{xdisplay,xfont}, gdk_x11_image_get_{xdisplay,ximage},
gdk_x11_gc_get_{xdisplay,ximage}
* gdk/gdkprivate.h gdk/gdkinternals.h: Move GdkColorInfo,
GdkEventFilter, GdkClientFilter, GdkFontPrivate to gdkinternals.
Fix a number of variables and functions that were exported
"accidentally" from GDK.
* gdk/**.[ch]: gdk => _gdk for gdk_visual_init,
gdk_events_init, gdk_input_init, gdk_dnd_init, gdk_image_exit,
gdk_input_exit, gdk_windowing_exit, gdk_event_func, gdk_event_data,
gdk_event_notify, gdk_queued_events, gdk_queued_tail,
gdk_event_new, gdk_events_queue, gdk_events_unqueue,
gdk_event_queue_find_first, gdk_event_queue_remove_link,
gdk_event_queue_append, gdk_event_button_generate,
gdk_debug_flags, gdk_default_filters, gdk_parent_root.
* gdk/x11/{gdkevents-x11.c, gdkglobals-x11.c, gdkimage-x11.c,
gdkmain-x11.c, gdkprivate-x11.h, gdk/x11/gdkwindow-x11.c}:
gdk => _gdk for gdk_event_mask_table, gkd_nevent_masks,
gdk_wm_window_protocols, gdk_leader_window, gdk_xgrab_window,
gdk_use_xshm, gdk_input_ignore_core.
* gdk/x11/xsettings-common.h (xsettings_list_insert): Add
#defines to namespace functions into the private _gdk_
namespace.
* gdk/gdkwindow.[ch] gdk/x11/gdkx.h: Add gdk_get_default_root_window ()
to replace gdk_parent_root exported variable. Adjust and
deprecate GDK_ROOT_PARENT().
* demos/{testpixbuf-drawable.c,testpixbuf-save.c}: Fix
GDK_ROOT_PARENT usage, remove includes of port-specific
headers.
* gdk/{win32,x11,fb}/gdkinput*.[ch]: s/gdk/_gdk/ for
_gdk_input_gxid_host, _gdk_input_gxid_port, _gdk_input_ignore_core,
gdk_input_devices, _gdk_input_windows, gdk_init_input_core.
* gdk/x11/{gdkevents-x11.,c gdkglobals-x11.c, gdkmain-x11.c}
docs/Changes-2.0.txt: Remove gdk_wm_protocols,
gdk_wm_delete_window functions, gdk_wm_take_focus,
use gdk_atom_intern() instead.
* gdk/linux-fb/{gdkselection-fb.c, gdkmain-fb.c, gdkprivatefb.h}
gdk/win32/{gdkselection-win32.c, gdkmgdkwin32.h, gdkprivate-win32.h}
gdk/x11/{gdkselection-x11.c gdkx.h, gtkprivate-x11.h}
gtk/gtkselection.c
Unexport gdk_selection_property, just use
gdk_atom_intern ("GDK_SELECTION").
* gdk/x11/{gdkprivate-x11.h,gdkdrawable-x11h,gdkgc-x11.c,gdkx.h}:
Unexport gdk_drawable_impl_x11_get_type, gdk_gc_x11_get_type,
GDK_GC_X11 cast macros, GdkGCX11 structures, GdkCursorPrivate,
GdkVisualprivate, gdk_x11_gc_flush.
Make a number of public exports of variables into functions
to increase encapsulation.
* gdk/gdkinternals.h gdk/gdkinput.h gdk/gdkevents.h
gdk/linux-fb/gdkmouse-fb.c: gdk_core_pointer => _gdk_core_pointer,
move to gdkinternals.h. Add gdk_device_get_core_pointer ().
* gdk/gdkprivate.h gdk/gdkpango.c gdk/gdkinternals.h
docs/Changes-2.0.txt: Unexport gdk_parent_root, gdk_error_code,
gdk_error_warnings.
* gdk/x11/{gdkcolormap-x11.c, gdkmain-x11.c, gdkx.h}
docs/Changes-2.0.txt:
s/gdk_screen/_gdk_screen/, add gdk_x11_get_default_screen()
s/gdk_root_window/_gdk_root_window/, add gdk_x11_get_default_root_xwindow()
Add gdk_x11_get_default_xdisplay().
* gdk/gdk.h gdk/gdk.c linux-fb/gdkfb.h linux-fb/gdkglobals-fb.c
win32/gdkwin32.h x11/gdkglobals-x11.c gdk/x11/gdkmain-x11.c
gdk/x11/gdkx.h: gdk/gdk.def: Add gdk_get/set_program_class,
Don't export gdk_progclass, move --class command line
option and handling to common portion of GDK.
Miscellaneous fixes:
* gdk/x11/gdkwindow-x11.c (gdk_window_set_icon_list): Fix
g_return_val_if_fail that should have been g_return_if_fail.
* gdk/gdkinternals.h gdk/gdkprivate.h: Move
gdk_synthesize_window_state() to the semi-public gdkprivate.h.
* gtk/gtkdnd.c (_gtk_drag_source_handle_event): Remove uneeded
X11 dependency.
* gdk/linux-fb/gdkmain-fb.c gdk/win32/gdkmain-win32.c gdk/TODO:
Remove unused gdk_key_repeat_disable/restore.
* linux-fb/gdkglobals-fb.c win32/gdkglobals-win32.c
x11/gdkglobals-x11.c x11/gdkprivate-x11.h gdk/gdk.def:
Remove unused gdk_null_window_warnings variable.
* gdk/Makefile.am (DIST_SUBDIRS) nanox/*: cvs remove nanox;
it can be retrieved from the repository; it is too far
from functional to be worth having people check out;
it would be easier to start from scratch, I suspect.
* gdk/x11/gdkpixmap-x11.c: Fix lvalue usage of GDK_PIXMAP_XID().
* gdk/x11/gdkkeys-x11.c gdk/gdkrgb.c gdk/gdkwindow.c
gdk/x11/gdkpango-x11.c gdk/x11/gdkselection-x11.c:
Fix some accidentally global variables and unused global variables.
* gdk/x11/gdkkeys-x11.c gdk/gdkrgb.c gdk/gdkwindow.c
gdk/x11/gdkpango-x11.c gdk/x11/gdkselection-x11.c:
Fix some accidentally global variables and unused global variables.
Add some space for future expansion to multihead.
* gdk/gdkdrawable.h: Add four reserved function pointers
for future expansion of GdkDrawableClass.
* gtk/gtkwindow.h gtk/gtkinvisible.h: Add reserved pointer
where we can put a GdkScreen * later.