should break on Unix/X11.
Win32 merge and general portability stuff:
* acconfig.h,configure.in: Check for <sys/time.h>.
* gdk/win32: New directory (actually, been there for a while).
* gtk/fnmatch.c: Include <glib.h> for G_DIR_SEPARATOR, WIN32 and
NATIVE_WIN32, and use these. Always case fold on Win32. No
backslashed escapes on native Win32.
* gtk/{gtk.def,makefile.msc}: New files.
* gtk/Makefile.am: Add above new files.
* gtk/{gtkaccelgroup,gtkbindings}.c: Include <string.h>
instead of <strings.h>.
* gtk/{gtkcalendar,gtkitemfactory,gtkpreview,gtkrc}.c: Include
config.h. Protect inclusion of <sys/param.h>, <sys/time.h>, and
<unistd.h> appropriately.
* gtk/gtkdnd.c: Merge in Win32 version (which doesn't do much).
Use ABS() (from <glib.h>) instead of abs().
* gtk/gtkfilesel.c: Moved Win32-specific includes after inclusion
of gtk (and thus glib) headers, so that WIN32 will be
defined. With MS C, include <direct.h> for mkdir prototype.
* gtk/gtkitemfactory.c (gtk_item_factory_callback_marshal): Add
some casts, needed by MS C.
* gtk/{gtklayout,gtkplug}.c: Merge in Win32 version (which isn't
implemented).
* gtk/gtkmain.c: Include gdk/gdkx.h for GDK_WINDOWING. Include
<X11/Xlocale.h> only on X11 platform, otherwise <locale.h>. Use
G_SEARCHPATH_SEPARATOR_S and g_module_build_path.
* gtk/gtkmain.h: Mark variables for export/import on Win32.
* gtk/gtkrange.c (gtk_range_motion_notify): Set mods also in case
the event is not a hint, or its window is not the slider. Needed
on Win32, at least.
* gtk/gtkrc.c: Include config.h and gdk/gdkx.h. Use <locale.h>
unless on X11. Skip \r chars, too. Use G_DIR_SEPARATOR and
G_SEARCHPATH_SEPARATOR(_S). Use g_path_is_absolute. On Win32, use
a subdirectory of the Windows directory as gtk system
configuration directory.
* gtk/gtkselection.c: No chunks on Win32.
* gtk/gtksocket.c: Not implemented on Win32.
* gtk/gtkthemes.c (gtk_theme_engine_get): Use g_module_build_path.
* gtk/makeenums.h: Include gdkprivate.h after gdk.h.
* gtk/testrgb.c: Use dynamically allocated buffer. Use GTimers.
Sun Jan 17 22:47:15 1999 Tim Janik <timj@gtk.org>
* gtk/gtkwidget.[hc]:
* gtk/gtkspinbutton.[hc]:
* gtk/gtkscrolledwindow.[hc]:
* gtk/gtkprogressbar.[hc]:
* gtk/gtkpreview.[hc]:
* gtk/gtkobject.[hc]:
* gtk/gtkentry.[hc]:
* gtk/gtkctree.[hc]:
* gtk/gtkcontainer.[hc]:
* gtk/gtkclist.[hc]:
removed deprecated functions: gtk_clist_set_border,
gtk_container_block_resize, gtk_container_unblock_resize,
gtk_container_need_resize, gtk_ctree_set_reorderable,
gtk_ctree_show_stub, gtk_ctree_set_use_drag_icons,
gtk_entry_adjust_scroll, gtk_object_class_add_user_signal,
gtk_preview_put_row, gtk_progress_bar_construct,
gtk_scrolled_window_construct, gtk_spin_button_construct,
gtk_widget_freeze_accelerators, gtk_widget_thaw_accelerators.
* gtk/gtkcheckmenuitem.c: removed binary variant of
gtk_check_menu_item_set_state, this is still defined in gtkcompat.h
though.
* docs/Changes-1.2.txt:
removed section about gtk_idle_remove_by_data vs.
gtk_timeout_remove_by_data, we actually don't even provide a
gtk_timeout_remove_by_data() function.
added a table with removed functions and their replacements.
* NEWS: updates for 1.1.13.
I submitted this patch twice to gtk-devel-list, and received no comments, so
am committing it. Although not exhaustively tested, I have been using this
gtk+ for a week w/o problems, and I did read the code to ensure that nothing
ever writes to these data structures. If by chance people encounter SEGV's in
gtk+ code that is setting values in global data structures, this patch could
be a possible culprit.
1998-11-30 Elliot Lee <sopwith@cuc.ml.org>
* {gdk,gtk}/*.c: Make read-only data structures "static const" to
allow them to be shared, mainly including (but not limited to) the
GtkTypeInfo structures for each class.
* gtk/gtkfilesel.c: Add /net to the "leave me alone" directory listing.
Sun Nov 22 16:21:28 1998 Tim Janik <timj@gtk.org>
* gtk/gtkprogress.c: added args ::show_text, ::text_xalign,
::text_yalign, ::activity_mode.
* gtk/gtkprogressbar.c: added construct arg ::adjustment. added args
::bar_style, ::orientation, ::discrete_blocks, ::activity_step,
::activity_blocks.
(gtk_progress_bar_new):
(gtk_progress_bar_new_with_adjustment): use gtk_widget_new().
(gtk_progress_bar_construct): deprecated.
* gtk/gtkvscrollbar.c:
(gtk_vscrollbar_draw_step_back):
(gtk_vscrollbar_draw_step_forw): use "vscrollbar" as detail for
gtk_paint_arrow, to be consistent with hscrollbar.
* gtk/gtktext.c
added construct args ::hadjustment, ::vadjustment.
added args ::line_wrap, ::word_wrap.
(gtk_text_class_init): added scroll_adjustments signal.
(gtk_text_new): use gtk_widget_new.
(gtk_text_disconnect): remove adjustement with gtk_text_set_adjustments,
so we don't screw the reference counts and don't leave signals connected.
(gtk_text_destroy): disconnect adjustments signals.
(gtk_text_finalize): unref adjustments.
* gtk/gtkctree.c: added construct args ::n_columns and ::tree_column.
added args ::indent, ::spacing, ::show_stub, ::reorderable,
::use_drag_icons, ::line_style and ::expander_style.
(gtk_ctree_set_show_stub): renamed from gtk_ctree_show_stub, which is
deprecated now.
* gtk/gtkclist.h: remove GTK_CLIST_CONSTRUCT flag.
* gtk/gtkclist.c:
removed ::vadjustment and ::hadjustment args, introduced
::scroll_adjustments signal.
added ::shadow_type, ::selection_mode and ::row_height args.
added n_columns construct arg.
(gtk_clist_construct): call gtk_object_constructed().
(gtk_clist_set_row_height): if height is passed as 0,
revert to automatic height calculation.
(gtk_clist_destroy): before unrefing the adjustments, disconnect our
signal handlers.
Fri Nov 21 22:34:58 1998 Tim Janik <timj@gtk.org>
* gtk/gtkwidget.c (gtk_widget_new): call gtk_object_default_construct
like gtk_object_new.
(gtk_widget_destroy): assert that we only destroy constructed widgets.
* gtk/gtkobject.h (enum GtkArgFlags): new flag GTK_ARG_CONSTRUCT_ONLY
to identify args that may only be used for construction.
GTK_ARG_CONSTRUCT maybe used as normal arguments besides construction
time.
* gtk/gtkobject.c (gtk_object_new): invoke gtk_object_default_construct
at the end if the object is not fully constructed.
(gtk_object_newv): likewise.
(gtk_object_destroy): assert that we only destroy constructed objects.
(gtk_object_init): setup GTK_CONSTRUCTED from the
objects real klass.
(gtk_object_default_construct): new function to complete default
construction of an object by applying missing construtor args with
default values of 0, 0.0 or NULL.
(gtk_object_constructed): new function to mark an object as being
constructed (used from within constructors).
* gtk/gtkarg.c (gtk_arg_type_new_static): return the args info pointer
so it is immediatedly available for the caller.
* gtk/gtktypeutils.c (gtk_type_new): pass an object's real class to
the object initilizer (GtkObjectInitFunc takes a second arg now, the
real klass), and asure that object initializers may temporarily alter
the class pointer.
Fri Nov 20 08:00:30 1998 Tim Janik <timj@gtk.org>
* gtk/testgtk.c: change all occourances of gtk_container_add (
scrolled_window, widget) to gtk_scrolled_window_add_with_viewport (...)
for widget!=(clist, ctree, text, viewport).
* gtk/gtkcombo.c:
(gtk_combo_init): use gtk_scrolled_window_add_with_viewport()
to add children to the scrolled window.
* gtk/gtkscrolledwindow.h:
* gtk/gtkscrolledwindow.c:
changed scrolled_window->viewport to scrolled_window->child, and use
gtk_widget_scroll_adjustements() to set the scroll adjustments for the
widget, we do not create an additional viewport anymore.
added ::hadjustment and ::vadjustment constructor args.
(gtk_scrolled_window_new): use gtk_widget_new() to create the widget.
(gtk_scrolled_window_set_hadjustment):
(gtk_scrolled_window_set_vadjustment): new functions that superceed
gtk_scrolled_window_construct.
(gtk_scrolled_window_construct): deprecated this function.
* gtk/gtkhscrollbar.c:
* gtk/gtkvscrollbar.c:
* gtk/gtkhscale.c:
* gtk/gtkvscale.c:
support a constructor arg "::adjustment", and use gtk_widget_new() for
the widget creation.
* gtk/gtkrange.c: added ::update_policy arg.
(gtk_range_set_adjustment): if adjustment is passed in as NULL, create
a default adjustment so this function can be used for derived widgets
that depend on the adjustment's existance.
(gtk_range_destroy): disconnect the adjustment signal, so we don't
get called after we got destroyed, we don't destroy the adjustment
in here, because it might have been provided from another widget.
* gtk/gtkviewport.c: introduced ::scroll_adjustments signal.
(gtk_viewport_destroy): same as gtk_range_destroy.
* gtk/gtkprogress.c (gtk_progress_destroy): same as gtk_range_destroy.
* gtk/gtkwidget.h:
* gtk/gtkwidget.c: changed gtk_widget_activate() to return a
gboolean, indicating whether this widget supports activation.
added gtk_widget_scroll_adjustements() to set the scrolling
adjustments of a widget.
Wed Nov 19 01:22:42 1998 Tim Janik <timj@gtk.org>
* gtk/gtkoptionmenu.c:
(gtk_option_menu_remove_contents):
(gtk_option_menu_update_contents): removed
gtk_container_[un]block_resize() pairs.
* gtk/gtknotebook.h:
* gtk/gtknotebook.c: removed the tab_border field, since it shouldn't
be used outside of gtknotebook.c anyways. made ARG_TAB_BORDER a
wrtie-only argument.
* *.c: made deprecated functions issue a message:
gtk_clist_set_border, gtk_container_block_resize,
gtk_container_unblock_resize, gtk_container_need_resize,
gtk_object_class_add_user_signal, gtk_spin_button_construct,
gtk_scrolled_window_construct.
removed non-functional functions:
gtk_container_disable_resize, gtk_container_enable_resize,
gtk_clist_set_policy.
Wed Nov 18 22:54:36 1998 Tim Janik <timj@gtk.org>
* gtk/gtkbox.c (gtk_box_init):
* gtk/gtkdrawingarea.c (gtk_drawing_area_init):
* gtk/gtkeventbox.c (gtk_event_box_init):
* gtk/gtkfixed.c (gtk_fixed_init):
* gtk/gtkframe.c (gtk_frame_init):
* gtk/gtkhandlebox.c (gtk_handle_box_init):
* gtk/gtkpacker.c (gtk_packer_init):
* gtk/gtkmisc.c (gtk_misc_init):
* gtk/gtkpreview.c (gtk_preview_init):
* gtk/gtkprogress.c (gtk_progress_init):
* gtk/gtkprogressbar.c (gtk_progress_bar_init):
* gtk/gtkseparator.c (gtk_separator_init):
* gtk/gtktable.c (gtk_table_init):
* gtk/gtkviewport.c (gtk_viewport_init):
* gtk/gtkalignment.c (gtk_alignment_init):
removed setting of the GTK_BASIC flag.
* gtk/gtkwidget.h:
* gtk/gtkwidget.c:
removed GTK_BASIC, GTK_WIDGET_BASIC and gtk_widget_basic.
* miscellaneous GtkType and macro fixups.
Tue Aug 18 03:54:43 1998 Tim Janik <timj@gtk.org>
* gtk/gtkmain.c (gtk_init): restricted the --g*fatal-* arguments
to --g-fatal-warnings again. this option now causes log levels of
WARNING and CRITICAL to abort().
* gdk/gdk.c:
* gdk/gdkdnd.c:
* gdk/gdkcc.c:
* gdk/gdkfont.c:
* gdk/gdkwindow.c:
* gdk/gdkvisual.c:
* gtk/gtkwidget.c:
* gtk/gtktypeutils.c:
* gtk/gtktree.c:
* gtk/gtkfontsel.c:
* gtk/gtkmain.c:
* gtk/gtkobject.c:
* gtk/gtkpreview.c:
* gtk/gtkselection.c:
* gtk/gtktext.c:
* gtk/gtktree.c:
* gtk/gtktreeitem.c:
did a global search&replace to substitute g_print() calls with
g_message(). libraries shouldn't use printf(), g_print() or
g_printerr() at all.
a bunch of the replacements should probably be wrapped into the
G{D|T}K_NOTE() macros, so they are special cased for debugging
purposes in a sane way, avoiding all the nasty #ifdef DEBUG_MY_TEDDY
things.
* gdk/gdkrgb.c: left this out currently.
* gdk/gdkdnd.c: added copyright notice.
Thu Jul 9 21:03:19 CDT 1998 Shawn T. Amundson <amundson@gtk.org>
* gtk/gtkpreview.c: add in just enough support for 1 or 4 bits
so that it seems to allow normal operation in those modes,
although you will only see black. 1 bit untested
Sat Jul 4 13:16:24 1998 Tim Janik <timj@gtk.org>
* gtk/*.c: changed reversed_[12] to reserved_[12] in gtk_*_get_type
functions.
* gdk/gdkwindow.c:
* gdk/gdkvisual.c: check for some pointer values to be != NULL, prior
to XFree() calls.
Sun Jun 28 04:29:10 1998 Tim Janik <timj@gtk.org>
* gtk/gtktypeutils.c (gtk_type_class_init): call the base class init
fucntions from all parent types upon class initialization.
* gtk/gtkcontainer.c:
(gtk_container_get_type): announce gtk_container_base_class_init to
the type system.
(gtk_container_base_class_init): new function to feature base class
initialization.
(gtk_container_get_child_arg):
(gtk_container_set_child_arg): call the GtkContainerClass get_child_arg
and set_child_arg methods of the class indicated through the argument
name.
* gtk/gtkobject.c:
(gtk_object_base_class_init): new function to feature base class
initialization.
(gtk_object_init_type): announce gtk_object_base_class_init to the type
system.
(gtk_object_class_init): setup the get_arg and set_arg pointers for
GtkObjectClass.
(gtk_object_setv):
(gtk_object_getv): call the GtkObjectClass get_arg and set_arg methods,
instead of bothering the type system with this.
* gtk/gtkaccellabel.c:
* gtk/gtkbutton.c:
* gtk/gtkradiobutton.c:
* gtk/gtktable.c:
* gtk/gtktogglebutton.c:
* gtk/gtktipsquery.c:
* gtk/gtkbox.c:
* gtk/gtkpacker.c:
* gtk/gtkwidget.c:
* gtk/gtkwindow.c:
* gtk/gtkframe.c:
* gtk/gtkmisc.c:
* gtk/gtklabel.c: set the object_class->{g|s}et_arg pointers to the
corresponding gtk_*_{g|s]et_arg functions and updated the gtk_*_get_type
functions wrt GtkTypeInfo initialization. changed a lot of the set/get
arg functions to take a GtkObject argument.
gtk/gtkadjustment.c:
gtk/gtkalignment.c:
gtk/gtkarrow.c:
gtk/gtkaspectframe.c:
gtk/gtkbbox.c:
gtk/gtkbin.c:
gtk/gtkcheckbutton.c:
gtk/gtkcheckmenuitem.c:
gtk/gtkclist.c:
gtk/gtkcolorsel.c:
gtk/gtkcombo.c:
gtk/gtkctree.c:
gtk/gtkcurve.c:
gtk/gtkdata.c:
gtk/gtkdialog.c:
gtk/gtkdrawingarea.c:
gtk/gtkeditable.c:
gtk/gtkentry.c:
gtk/gtkeventbox.c:
gtk/gtkfilesel.c:
gtk/gtkfixed.c:
gtk/gtkfontsel.c:
gtk/gtkgamma.c:
gtk/gtkhandlebox.c:
gtk/gtkhbbox.c:
gtk/gtkhbox.c:
gtk/gtkhpaned.c:
gtk/gtkhruler.c:
gtk/gtkhscale.c:
gtk/gtkhscrollbar.c:
gtk/gtkhseparator.c:
gtk/gtkimage.c:
gtk/gtkinputdialog.c:
gtk/gtkitem.c:
gtk/gtkitemfactory.c:
gtk/gtklist.c:
gtk/gtklistitem.c:
gtk/gtkmenu.c:
gtk/gtkmenubar.c:
gtk/gtkmenuitem.c:
gtk/gtkmenushell.c:
gtk/gtknotebook.c:
gtk/gtkoptionmenu.c:
gtk/gtkpaned.c:
gtk/gtkpixmap.c:
gtk/gtkpreview.c:
gtk/gtkprogressbar.c:
gtk/gtkradiomenuitem.c:
gtk/gtkrange.c:
gtk/gtkruler.c:
gtk/gtkscale.c:
gtk/gtkscrollbar.c:
gtk/gtkscrolledwindow.c:
gtk/gtkseparator.c:
gtk/gtkspinbutton.c:
gtk/gtkstatusbar.c:
gtk/gtktext.c:
gtk/gtktoolbar.c:
gtk/gtktooltips.c:
gtk/gtktree.c:
gtk/gtktreeitem.c:
gtk/gtkvbbox.c:
gtk/gtkvbox.c:
gtk/gtkviewport.c:
gtk/gtkvpaned.c:
gtk/gtkvruler.c:
gtk/gtkvscale.c:
gtk/gtkvscrollbar.c:
gtk/gtkvseparator.c: updated the GtkTypeInfo initialization code to
match the modified GtkTypeInfo structure.
1998-05-11 Federico Mena Quintero <federico@nuclecu.unam.mx>
* gtk/gtkpreview.c (gtk_preview_realize): Create the window using
GtkPreview's visual and colormap, otherwise things can BadMatch.
* gtk/testgtk.c (create_color_preview):
(create_gray_preview): Removed pushing/popping of visual/colormap
now that GtkPreview does things correctly.
* gtk/gtkcolorsel.c (gtk_color_selection_draw_wheel_frame):
(gtk_color_selection_draw_wheel): Pick the style from the correct
place (the colorsel->wheel_area widget) so that the GCs will match
with where we are going to paint to.
* gtk/testgtk.c (create_color_selection): Removed pushing/popping
of visual/colormap now that GtkColorSelection does things the
right way.
Sun May 3 14:55:34 1998 Owen Taylor <otaylor@gtk.org>
* docs/gtkfaq.sgml (CPPFLAGS): Added a FAQ entry about
"glibconfig.h" and another about writing another IRC
client.
Sat May 2 00:14:05 1998 Owen Taylor <otaylor@gtk.org>
* gtk/gtkpreview.c (gtk_trim_cmap): Make sure the
parameters to log are doubles. Digital Unix apparently
is missing the argument in its prototype.
Sun May 3 19:04:46 1998 Owen Taylor <otaylor@gtk.org>
* gtk/gtklabel.c (gtk_label_state_changed): Don't
force a clear until the widget is actually on
screen.
Hopefully nothing else though CVS think there are a whole
bunch more changed files.
Sun May 3 13:38:22 1998 Owen Taylor <otaylor@gtk.org>
* configure.in acheader.h gdk/gdkwindow.c
Check for Shape extension both on the client and server
side. (And, more importantly, check for the shape extension
so we may include -lXext even when compiling with --disable-xshm)
Don't set override_redirect on all shaped windows. It isn't
necessary.
* gdk/gdkwindow.c: Set ->colormap to NULL for root
and foreign windows. Use this to check if we
need to get the colormap from X.
Fri May 1 22:32:47 1998 Owen Taylor <otaylor@gtk.org>
* gtk/gtkbutton.c (gtk_button_paint): Draw the areas
between the default and the button always in GTK_STATE_NORMAL.
* gtk/gtkrange.c (gtk_range_style_set): Added a style_set
callback.
Fri May 1 16:40:57 1998 Owen Taylor <otaylor@gtk.org>
* gdk/gdkpixmap.c (gdk_pixmap_colormap_create_from_xpmp[_d]):
Fix a buffer overflow on pixmaps that claim to have
more than 31 characters per pixel.
(gdk_pixmap_read_string): Don't wrap around strings longer
than half of address space ;-)
* gtk/gtk[vh]ruler.c gtk/gtkinputdialog.c: Expand some buffers
that were used for printing integers.
* */* (almost):
Style: All
int foo () { ... }
changed to
int foo (void) { ... }
^^^^^^^ This is why some many files changed
Even where there were proper prototypes elsewhere.
* gdk/gxid.c (handle_claim_device): Some extra checks.
It isn't safe against being fed bad X id's, but at
least it should be safe against deleting all your
files.
Wed Apr 15 20:42:46 1998 Owen Taylor <otaylor@gtk.org>
* gtk/gtkpreview.c (gtk_preview_get_visuals): Make sure
that when we are running with a non-installed colormap,
in 8-bit pseudo-color, we actually are using the system
visual. (Fixes *Bad Match* errors on Digital Unix machines
with multiple 8-bit pseudo-color visuals)
-r HEAD and -r gtk-1-0 are in sync now!
Sun Apr 12 20:09:40 1998 Owen Taylor <owt1@cornell.edu>
* gtk/gtklabel.[ch] (gtk_label_expose): Set a flag so
instead of clearing the area in advance. That looked
_really_ bad.
* gtk/gtkcontainer.c (gtk_container_class_init): Changed
"focus" to RUN_LAST.
* gtk/gtkentry.c (gtk_entry_realize): Fixed place
where allocation was used where requisition was meant.
(Found by David J N Begley <david@avarice.nepean.uws.edu.au>)
* gtk/gtkwindow.c (gtk_window_set_default): Fixed
assertion in when setting default to NULL>
("Damon Chaplin" <DAChaplin@email.msn.com>)
* gtk/gtkwidget.c (gtk_widget_unparent): Unset the
default widget on the toplevel, if necessary.
Sun Apr 12 02:04:21 1998 Owen Taylor <owt1@cornell.edu>
* gtk/gtkpreview.c: Removed unecessary and harmful
htons/ntohs when storing properties. (X does the byte
swapping itself)
Sat Mar 7 18:46:57 1998 Owen Taylor <owt1@cornell.edu>
* gtk/gtkpreview.[ch]: Added a new function, gtk_preview_reset(),
that can be used (under highly controlled circumstances),
to change the properties of the preview colormap after
a preview has already been created and destroyed.
Sat Mar 7 20:20:53 1998 Tim Janik <timj@gimp.org>
* gtk/gtkobject.c:
(gtk_object_check_cast):
(gtk_object_check_class_cast):
made the object/class cast checks much more descriptive, based on
gtk-draco-980305-2.patch.gz and gtk-draco-980306-1.patch.gz but
optimized for common code path.
* gtk/gtkpreview.c: added a few extra checks for the visual
(gtk-draco-980305-0.patch.gz).
* gdk/gdk.c (gdk_signal): abort() on a signal if G_ENABLE_DEBUG
is defined, so we dump core (gtk-draco-980305-0.patch.gz).
Sat Feb 28 15:18:36 1998 Tim Janik <timj@gimp.org>
* gtk/gtkpreview.c: fix behavior of gtk_preview_put() with
srcx/srcy != 0, gtk-shige-980127-0.patch.gz by
AOSASA Shigeru <aozasa@sakuranet.or.jp>.
* gdk: applied gtk-roebling-980121-0.patch.gz, patch for region
support in Gdk, by Robert Roebling <roebling@ruf.uni-freiburg.de>.
Sun Jan 18 09:57:00 1998 Owen Taylor <owt1@cornell.edu>
* gtkbutton.c gtkclist.c gtkdrawingarea.c gtkentry.c gtkeventbox.c
gtkfixed.c gtkhandlebox.c gtkhscale.c gtkhscrollbar.c gtkitem.c
gtklist.c gtkmenushell.c gtkmisc.c gtknotebook.c gtkpaned.c
gtkpreview.c gtkprogressbar.c gtkruler.c gtktext.c gtktree.c
gtkviewport.c gtkvscale.c gtkvscrollbar.c gtkwidget.{c,h}
Added gtk_widget_set_parent and gtk_widget_get_parent. All
widgets should use:
gtk_widget_get_parent() instead of widget->parent->window.
Any widget that wants to have children not in the parent window,
should use gtk_widget_set_parent () in their realize() and
add () routines.
CList and Viewport widgets changed to do this. (Viewport
widget using code from gtk-fortier-980117-0.patch.)
