Thu Jan 21 17:13:12 1999 Jeff Garzik <jgarzik@pobox.com>
* gtk/gtkselection.c:
(gtk_selection_property_notify): Check args for NULL.
(gtk_selection_default_handler):
Replace manual list count with call to g_list_length.
Remove signedness of temp var 'count' to agree with usage.
Slight spacing adjustment for readability.
* gtk/gtkbox.c, gtk/gtklayout.c, gtk/gtkselection.c:
Init a few ptrs to NULL, to quiet warnings.
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.
Thu Sep 3 04:22:20 1998 Tim Janik <timj@gtk.org>
* gtk/gtkmenushell.c (gtk_real_menu_shell_move_current):
GTK_MENU_DIR_CHILD: check for the existance of
menu_shell->active_menu_item before accessing its child.
GTK_MENU_DIR_PREV:
GTK_MENU_DIR_NEXT: if we haven't had an active item and still
don't, make a default selection.
Wed Sep 2 00:28:58 1998 Tim Janik <timj@gtk.org>
* gtk/gtkwidget.c (gtk_widget_propagate_state): iterate
the children with _forall for sensitivity changes and with
_foreach on pure state changes. this fixes a lot of the
old inclusions of internal widgets into _foreach calls.
* gtk/gtktree.c: removed gtk_tree_foreach, let gtk_tree_forall
do the work. don't walk the subtrees of first level children.
* gtk/gtktreeitem.c: provide a _forall implementation,
which walks the subtrees as well for include_internals.
* gtk/gtkmenuitem.c: provide a _forall implementation, which walks
the submenus as well for include_internals.
* gtk/gtkscrolledwindow.c: removed gtk_scrolled_window_foreach and
implemented gtk_scrolled_window_forall, which will iterate over
the viewport and the scrollbars for gtk_container_forall or
iterate over the viewports children for gtk_container_foreach.
* gtk/gtktoolbar.c:
* gtk/gtktable.c:
* gtk/gtkpaned.c:
* gtk/gtkpacker.c:
* gtk/gtkmenushell.c:
* gtk/gtklist.c:
* gtk/gtkfixed.c:
* gtk/gtkclist.c:
* gtk/gtkbox.c:
* gtk/gtkbin.c:
* gtk/gtknotebook.c:
removed the old gtk_*_foreach functions and provided gtk_*_forall.
* gtk/gtknotebook.c:
(gtk_notebook_real_switch_page): expose tabs.
(gtk_notebook_page_num): new function to return the page number
of a distinct child.
(gtk_notebook_focus): minor fixups. foxus handling is still screwed
under some circumstances.
* gtk/gtktreeitem.c:
(gtk_real_tree_item_select):
(gtk_real_tree_item_deselect): major fixes.
some general fixups wrt queue_redraw, and tree items not being
NO_WINDOW widgets.
* gtk/gtklistitem.c:
(gtk_real_list_item_select):
(gtk_real_list_item_deselect):
(gtk_real_list_item_toggle):
removed unneccessary queue_redraw calls.
Wed Aug 30 09:42:07 1998 Tim Janik <timj@gtk.org>
* gtk/gtkoptionmenu.c: allow optionmenus to have the focus and
automatically popup the menu on space bar.
Wed Aug 26 06:40:34 1998 Tim Janik <timj@gtk.org>
* gtk/gtkcontainer.h:
* gtk/gtkcontainer.c: implemented gtk_container_forall() (as a class
method), which acts similar to gtk_container_foreach(), but iterates
over internal children. the GtkContainer::foreach signal vanished in
favour of a new class method ->forall() that optionally includes
internal widgets.
* gtk/gtkclist.c (gtk_clist_init): provide no _foreach implementation
but a _forall implementation, since all child widgets we have are
internal ones.
(column_button_create): set the parent window prior
to gtk_widget_set_parent().
* gtk/gtkwidget.c:
exchanged all calls to gtk_container_foreach() with
gtk_container_forall().
* gtk/gtkwidget.h:
* gtk/gtkwidget.c: added the GTK_COMPOSITE_CHILD, exported through
the GtkWidget::composite_child argument. to have a widget created
with the flag initially, two new functions got added to wrap a widgets
creation:
gtk_widget_push_composite_flag() and gtk_widget_pop_composite_flag().
Wed Aug 25 23:37:39 1998 Tim Janik <timj@gtk.org>
* gtk/gtktooltips.h:
* gtk/gtktooltips.c: exported gtk_tooltips_create_window() as
gtk_tooltips_force_window(), so tooltips->tip_window can be accessed
prior to the first tip being set.
don't put an extra reference on the window, since it is a toplevel,
it wont get destroyed from anywhere else.
* overall macro and GtkType fixups.
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.
Wed Jun 24 16:38:02 1998 Tim Janik <timj@gtk.org>
* gtk/gtkbin.c (gtk_bin_remove): do not avoid to queue for a resize
if the container is not visible, we might be a toplevel! this holds
for all other base container implementations as well, that are
candidates to derive toplevels from. in general the resizing code will
care about visibility itself.
* gtk/gtkmenushell.c (gtk_menu_shell_remove): likewise.
* gtk/gtkbox.c (gtk_box_remove): likewise.
* gtk/gtkwindow.c (gtk_window_move_resize): save ->use_uposition around
gtk_window_set_hints(), since we haven't calculated the new position
yet.
* gdk/gdkwindow.c (gdk_window_get_pointer): take care that *x, *y and
*mask are alway initialized in a sane way, regardless of the return
value.
Wed Jun 24 07:47:29 1998 Tim Janik <timj@gtk.org>
* gtk/testgtk.c (create_idle_test): added a frame with radio buttons
to select the resize_mode for the idle-labels container.
* gtk/gtkframe.h:
* gtk/gtkframe.c: GtkType and macro corrections.
* gtk/gtkradiobutton.c (gtk_radio_button_set_arg): new function to
support radio grouping.
Tue Jun 23 08:01:09 1998 Tim Janik <timj@gtk.org>
* gtk/gtkcontainer.c (gtk_container_set_resize_mode): queue a resize
unconditionally if resize_mode has changed.
* gtk/gtkscrolledwindow.c (gtk_scrolled_window_init): set
GTK_RESIZE_QUEUE on the scrolled window.
(gtk_scrolled_window_construct): set GTK_RESIZE_PARENT for the vieport.
Tue Jun 23 04:20:30 1998 Tim Janik <timj@gtk.org>
* gtk/gtkcontainer.h:
* gtk/gtkcontainer.c:
(GTK_IS_RESIZE_CONTAINER): new macro to find out if
a given gtkobject is a container with resize_mode==GTK_RESIZE_PARENT.
(gtk_container_queue_resize): new function to queue a container for
a *size* reallocation (doesn't affect its position, and thus its
parent is left untouched usually).
(gtk_container_get_resize_container): new function to retrive the next
most resize container which is not itself queued for a resize.
(gtk_container_idle_sizer): new function to carefully process the
container_resize_queue since it can change during invokation of
gtk_container_check_resize().
(gtk_container_resize_children): total rework of this function to
properly handle resize containers. makes a lot of assumptions whitch
are stated in the comments.
* gtk/gtkcontainer.c:
(gtk_container_real_check_resize): only requeue ourselves if we are not
a resize container.
(gtk_container_clear_resize_widgets): care for automatic deletion of our
resize_widgets list on size_allocate through a handler connection.
* gtk/gtkwindow.c (gtk_window_shutdown): new functionm to reset the
focus and default widget of a window, so to take the burden from
gtk_widget_unparent.
* gtk/gtkviewport.c: removed gtk_viewport_check_resize, which tried
to be clever, but actually messed up the resize_children logic and
caused unneccessary allocations on its whole branch. besides this,
it messed up the display by not invoking a redraw after the allocation.
* gtk/gtktable.c (gtk_table_set_child_arg): reverted recent change, so
that it is the child again that is queued for a resize.
(gtk_table_attach): likewise.
(gtk_table_remove): likewise.
Wed Jun 17 03:47:40 1998 Tim Janik <timj@gtk.org>
* gdk/gdk.h:
* gdk/gdkwindow.c: new function gdk_window_at_pointer() to retrive
the current GdkWindow the pointer is on if there is any.
* gtk/gtktable.c (gtk_table_init): preallocate a table with one row
and one column, so we don't construction logic at all. changed a few
(x < y - 1) to (x + 1 < y), to avoid failing evaluations due to
unsigned int wraps.
* gtk/gtkwidget.c (gtk_widget_set_parent): removed left over code
portion, added an additional check for parent != widget.
* more GtkType and macro fixups.
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.
Sun Apr 5 19:30:23 1998 Owen Taylor <owt1@cornell.edu>
* gtk/gtkclist.c: Fixed assignment of adjustment->value
to negative values. Moved a few other allocation type things
around in ways that may or may matter. Fixed some allocation
errors (scrollbars were overlapping main window).
* gtk/gtkbutton.c (gtk_real_button_released): Small hack to keep
button labels from vanishing when the invoked operation blocks.
* gtk/gtkbox.c (gtk_box_remove): Assigning GTK_WIDGET_VISIBLE (widget)
to a gboolean (char) is _bad_. GTK_VISIBLE == 256.
* gtk/gtkbox.c (gtk_box_remove): save the widgets visibility flag for
evaluation after the widget got destroyed, discovered by Johannes
Keukelaar <johannes@nada.kth.se>.
Thu Feb 19 06:56:52 1998 Tim Janik <timj@gimp.org>
* gtkbox.c:
* gtkbutton.c:
* gtkcontainer.c:
* gtkframe.c:
* gtklabel.c:
* gtkobject.c:
* gtkwidget.c:
* gtkwindow.c:
present the argument access masks on their announcement.
* gtk/gtkobject.h:
* gtk/gtkobject.c:
(gtk_object_add_arg_type): take an additional argument describing
the access mask of the new arg. this can be of GTK_ARG_READABLE,
GTK_ARG_WRITABLE or GTK_ARG_READWRITE (the latter is an alias for
the two previous ones).
(gtk_object_query_args): provide an access_mask array if desired.
* gtk/gtkwidget.c (gtk_widget_real_realize):
realized the assumtion that widget is a NO_WINDOW widget
in actuall code.
* gtkwindow.c:
slight changes to gtk_window_configure_event that will make
the resizing behaviour a little less odd.
sigh, for some (buggy) reason, there are still container resizes
triggered by manual resizing to very small window sizes.
the cointainer resizes will cause gtk_real_window_move_resize to
be invoked, which makes the app look like it wants to fight the users
resizing action. ;(
Sun Jan 18 03:57:52 1998 Tim Janik <timj@psynet.net>
* gtk/gtkbox.h:
* gtk/gtkbox.c: new functions gtk_box_reorder_child,
gtk_box_query_child_packing and gtk_box_set_child_packing to
allow modification of the child linkage after the widget tree
is setup.
* gtk/gtkbox.c:
* gtk/gtklabel.c:
* gtk/gtkwindow.c:
* gtk/gtkwidget.c:
* gtk/gtkobject.c: gtk_*_get_arg() and gtk_*_set_arg() fixes
and implementations.
