2001-10-24 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (gtk_text_view_update_adjustments): don't
create layout if we didn't have one
(gtk_text_view_set_buffer): invalidate so we get the idle handlers
as appropriate, avoids blanking the screen
(gtk_text_view_invalidate): new function to do invalidation,
containing old guts of invalidated_handler
Tue Oct 23 17:31:42 2001 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkwindow-x11.c gdk/win32/gdkwindow-win32.c: Always
set window->parent (except or the root window itself); if
the window's parent is not a GdkWindow, or is a window of
type GDK_WINDOW_FOREIGN, set window->parent to the root parent.
* gdk/gdkwindow.c (gdk_window_get_toplevels): Don't include
windows of type GDK_WINDOW_FOREIGN.
2001-10-24 Havoc Pennington <hp@pobox.com>
* gtk/gtktextiter.c (gtk_text_iter_backward_chars): if we move to
the front of a segment, use the "slow" technique for moving
backward, so we don't mess up the any_segment field in the iter.
Fixes#57707
* tests/testtextbuffer.c: add code to detect #57707, to avoid
regression
2001-10-23 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (popup_targets_received): only sensitize Cut
if selection contains some editable text, #60975
(gtk_text_view_scroll_to_iter): remove warning about scrolling
prior to map; it should actually be OK to do so in many cases,
it would be nice to warn about scrolling when many lines have
height 0, but I don't know what to do about that. Perhaps
move part of flush_scroll into this function? comment added
to consider this.
2001-10-23 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): Correctly keep the same
text on the top of the screen, considering that the changed region
may have overlapped the first paragraph. Should fix msw's "text
widget scrolled to wrong place on map" bug, and probably some
other scrolling cases as well.
(gtk_text_view_set_scroll_adjustments): start adjustments at 0.0,
instead of some random value
* gtk/gtktextview.c (gtk_text_view_class_init): actually override
grab_focus, so #59708 is really fixed
2001-10-24 Anders Carlsson <andersca@gnu.org>
* gtk/gtkentry.c: (append_action_signal): Use an image menu item here
(popup_targets_received): Call append_action_signal with stock items
* gtk/gtklabel.c: (append_action_signal): Use an image menu item here
(gtk_label_do_popup): Call append_action_signal with stock items
* gtk/gtktextview.c: (append_action_signal): Use an image menu item here
(popup_targets_received): Call append_action_signal with stock items
2001-10-23 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): queue a resize here; will
temporarily slow down the widget a lot, until we figure out how to
optimize to avoid full redraw everytime we queue a resize
Tue Oct 23 11:53:00 2001 Owen Taylor <otaylor@redhat.com>
* gtk/Makefile.am (INCLUDES): Remove G_DISABLE_CONST_RETURNS.
* gtk/gtkfontsel.[ch]: Make gtk_font_selection_get_font()
G_CONST_RETURN. (Murray Cumming)
* gtk/gtkfontsel.c (gtk_font_selection_dialog_get_preview_text):
Make G_CONST_RETURN.
* gtk/gtkfilesel.c (open_user_dir): Fix bug with freeing
results of g_get_home_dir().
* gtk/gtkfilesel.c: Make filesel->fileop_file a duplicated
copy. Storing the return from gtk_entry_get_text() is evil.
* gtk/gtkcombo.c gtk/gtkcellrenderertext.c gtk/gtkbindings.c
gtk/gtkfilesel.c gtk/gtkfontsel.c gtk/gtkimmodule.c
gtk/gtkobject.c gtk/gtkoldeditable.c gtk/gtktreedatalist.c
gtk/gtksignal.c: Add const.
* gdk/x11/gdkkeys-x11.c (get_direction): Add missing const.
* gtk/gtktreeview.c: Namespace object data keys to be safe, even
if we are setting them on private widgets.
* gtk/gtktreeview.c (gtk_tree_view_real_start_interactive_search):
Duplicate entry->text before setting it as object data.
2001-10-22 Havoc Pennington <hp@redhat.com>
* gtk/gtktextbuffer.c (gtk_text_buffer_place_cursor): don't back
up a char from the end iterator, fixes#61859 ("can't put cursor
at the end of the buffer")
* gtk/gtktextiter.c (gtk_text_iter_forward_to_line_end): fix this
to work with delimiters other than newline.
* tests/testtextbuffer.c: add some tests for get_chars_in_line,
get_bytes_in_line
* gtk/gtktextiter.c (gtk_text_iter_get_chars_in_line): fix for the
last line, since the newline is no longer counted.
(gtk_text_iter_get_bytes_in_line): ditto
2001-10-22 Havoc Pennington <hp@redhat.com>
* gtk/gtktextbtree.c (_gtk_text_btree_insert): add assertion that
#58290 would trigger if it reappeared, I think
2001-10-22 Havoc Pennington <hp@redhat.com>
* gtk/gtktextiter.c (_gtk_text_iter_forward_indexable_segment):
add temporary code to dump btree contents on assertion failure
described in #62656
* gtk/gtktextbtree.c (ensure_end_iter_segment): add some
assertions that we're getting the right end iter segment
* gtk/gtktextiter.c (_gtk_text_iter_forward_indexable_segment):
verify that we aren't on the end iterator after moving
forward one segment - fixes return value in an obscure case.
Also, some trivial code cleanup/rearranging.
2001-10-22 Havoc Pennington <hp@redhat.com>
* gtk/gtktextlayout.h: add a #error unless you define
GTK_TEXT_USE_INTERNAL_UNSUPPORTED_API, so people don't use this accidentally
* gtk/gtktext*.c: #define GTK_TEXT_USE_INTERNAL_UNSUPPORTED_API as appropriate.
Mon Oct 22 11:47:47 2001 Owen Taylor <otaylor@redhat.com>
* gtk/gtklabel.c: Add cursor-position, selection-bound
properties. (#62148, reported by Padraig O'Briain)
* gtk/gtkentry.c (gtk_entry_class_init): Rename text_position
to cursor_position. (1.3.x addition, text_position is an awful
name.) Make cursor_position read-only to avoid sticky questions
of interaction with selection_bound. (#62636, reported by
Padraig O'Briain)
Mon Oct 22 16:25:12 2001 Owen Taylor <otaylor@redhat.com>
Fixing popup menus to have "Paste" sensitized correctly. Original
patches from Damian Ivereigh, much mangled.
* gtk/gtkselection.c: Add functions gtk_selection_data_get_targets(),
gtk_selection_data_targets_include_text(). (#60854)
* gtk/gtkclipboard.c: Add a simple do-it-all non-async "check if
the clipboard has text" function gtk_clipboard_wait_is_text_available.
(#60854)
* gtk/gtkentry.c: Only enable the paste item if the clipboard
contains text. (#60973)
* gtk/gtktextview.c: Only enable the paste item if the clipboard
contains text. (#60975)
2001-10-22 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (gtk_text_view_class_init): rip out
"height_lines" and "width_columns" properties, it doesn't make
sense to set the size request on a text view really. #62103
Mon Oct 22 15:17:05 2001 Jonathan Blandford <jrb@redhat.com>
* gtk/gtktreestore.c (gtk_tree_store_iter_depth): Realized
g_node_depth is broken, and that it's not worth being consistent
with it.
2001-10-22 Havoc Pennington <hp@redhat.com>
* gtk/gtktextiter.c (gtk_text_iter_set_line): Clarify behavior in
docs, #61777
(gtk_text_iter_forward_search) (gtk_text_iter_backward_search):
change the two boolean args to a flags field, so we can extend
to add case insensitive, regexp searches later. #61852
Mon Oct 22 14:08:26 2001 Jonathan Blandford <jrb@redhat.com>
* demos/gtk-demo/appwindow.c: Remove handle_box from App demo.
* gtk/gtktreeview.c (size_allocate): Move to a different drawing
system. Instead of having a window the size of the tree, we have
a window the size of widget->allocation, and simply draw with the
offset.
(coords_are_over_arrow): ditto. Move to window coordinates.
(do_prelight): ditto
(do_unprelight): ditto
* gtk/gtktreemodelsort.c (gtk_tree_model_sort_rows_reordered):
Minor fix from Kristian Rietveld to fix unsorted case.
2001-10-22 jacob berkman <jacob@ximian.com>
* gtk/gtkclist.c (cell_size_request): don't cast a PIXTEXT cell to
a PIXMAP cell (fixes crash when using PIXTEXT cells)
Mon Oct 22 10:12:08 2001 Owen Taylor <otaylor@redhat.com>
* gdk/gdk.c docs/Changes-2.0.txt (gdk_threads_init): Don't call
g_thread_init(), we don't want to link to -lgthread if we don't
have to.
Mon Oct 22 08:51:02 2001 Owen Taylor <otaylor@redhat.com>
* gdk/gdk.[ch] (gdk_threads_init) docs/Changes-2.0.txt:
Add a function, gdk_threads_init() that must be explicitely
called to enable the GDK thread mutex.
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.
Mon Oct 22 00:26:46 2001 Kristian Rietveld <kristian@planet.nl>
* gtk/gtkspinbutton.c: remove ARROW_SIZE constant, use
new function spin_button_get_arrow_size() instead.
* gtk/gtkstyle.c (gtk_default_draw_arrow): actual size of
arrow was hardcoded, it's now variable.
Fixes bug #50200
Sat Oct 20 18:16:04 2001 Manish Singh <yosh@gimp.org>
* gtk/gtktreeview.c (gtk_treeview_get_property): PROP_MODEL and
PROP_EXPANDER_COLUMN can be NULL, so don't do a object case check
for those
Fri Oct 19 18:35:22 2001 Manish Singh <yosh@gimp.org>
* gtk/{gtkentry.c,gtktextview.c}: since GtkIMContext derives directly
from GObject now, we have to use the g_object_* functions, not
gtk_object_*.
Fri Oct 19 22:46:54 2001 Kristian Rietveld <kristian@planet.nl>
* gtk/gtktreemodelsort.[ch]: we probably have rows_reordered
nailed down now (this code is not yet ready for general consumption)
Fri Oct 19 15:08:30 2001 Owen Taylor <otaylor@redhat.com>
* gtk/{gtkimcontext.c,gtkimcontextsimple.c,gtkimmulticontext.c}
modules/input/{gtkimcontextxim.c,imcyrillic-translit.c,iminuktitut.c,
imipa.c,imthai-broken.c,imviqr.c}: Make GtkIMContext derive from
GObject, not GtkObject. (#62621)
Fri Oct 19 12:49:12 2001 Owen Taylor <otaylor@redhat.com>
* tests/testsocket.c: Remove now useless include of unistd.h,
fix wrong argument gtk_socket_steal. (Hans Breuer, #58541)
Fri Oct 19 12:24:32 2001 Owen Taylor <otaylor@redhat.com>
* gdk/linux-fb/gdkfont-fb.c: Fix up for change to
Pango font API. #61933. (Untested, even for compilation.)
Fri Oct 19 11:24:58 2001 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmain.[ch] (gtk_disable_setlocale): Actually
export gtk_disable_setlocale(). (Caught by Sven Neumann)
Thu Oct 18 14:22:10 2001 Jonathan Blandford <jrb@redhat.com>
* gtk/gtktreestore.c (gtk_tree_store_remove): fix small bug
reported by (Oleg Maiboroda), #62600
Wed Oct 17 15:17:20 2001 Owen Taylor <otaylor@redhat.com>
* gtk/gtkentry.c (gtk_entry_real_insert_text): Fix mistake
in truncating length of text to MAX_SIZE. (Found by
Padraig O'Briain, #62055)
Tue Oct 16 17:04:44 2001 Owen Taylor <otaylor@redhat.com>
* gtk/gtkwidget.c: Rename ACTIVATE_MNEMONIC enum to
MNEMONIC_ACTIVATE; signal was changed a long time
ago.
* gdk/x11/gdkim-x11.c (_gdk_x11_initialize_locale):
Fix wrong return statement. (Reported by HideToshi
Tajima and others.)
* gtk/gtklabel.h (struct _GtkLabelClass): Remove
left over select_all vfunc.
Tue Oct 16 15:50:03 2001 Owen Taylor <otaylor@redhat.com>
* gtk/gtkwidget.c (gtk_widget_translate_coordinates): Add
a utility function to translate coordinates relative to
one widget's allocation to coordinates relative to another
widget's allocation.
* gtk/gtkradiobutton.c: Add a special ->focus() implementation
that:
- only accepts external focus if there is no active
member of the group or the button is active.
- makes arrow keys move the active button as well
as the focus
- make tab tab out directly.
This makes a radio button group act as a single focus location.
(#53577).
* gtk/gtkcontainer.c (gtk_container_focus): Remove prefiltering -
it was only a small optimization that didn't matter and made
things more complicated.
* gtk/gtkcontainer.c (gtk_container_focus_tab): Get rid of custom
sorter for FOCUS_TAB as we did for the other focus directions,
sort by center of widgets, not upper-left corner. (Shouldn't
matter in general.)
* gtk/gtkcontainer.c: Restructure code to remove duplicate code
from the different types of focusing: encapsulate sorting the
widgets for the focus direction into one routine
(gtk_container_focus_sort()) and then share the work of moving the
focus between the different focus directions.
* gtk/gtkcontainer.c: Fix bug where arrow navigation might not
work correctly with focus chains containing non-immediate
children. Sorting was being done using allocation coordinates for
each widget in the focus chain, and if there were intermediate
window-widgets, these allocations would not be in the same
coordinate system.
Tue Oct 16 15:12:26 2001 Jonathan Blandford <jrb@redhat.com>
* gtk/gtkoptionmenu.c (gtk_option_menu_mnemonic_activate): add a
mnemonic_activate function to option menu.
Sat Oct 13 07:09:30 2001 Tim Janik <timj@gtk.org>
* gtk/gtkbindings.c (gtk_binding_set_add_path): to compare pattern
specs, use g_pattern_spec_equal() instead of direct field accesses.
upon compressing two equal paths of the same type, the resulting
priority has to be the maximum.
* gtk/gtkenums.h (enum): take GTK_PATH_PRIO_MASK out of the
GtkPathPriorityType enum and make it a macro.
2001-10-11 James Henstridge <james@daa.com.au>
* configure.in: add AS=CC and ASFLAGS=CFLAGS substitutions so
that gtk+ can be built with automake 1.5 while not breaking
things for automake 1.4.
Wed Oct 10 12:48:38 2001 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmain.c (gtk_init_check): Call setlocale (LC_ALL, "").
(#60606)
* gtk/gtkmain.c (gtk_disable_setlocale): Add function
to disable calling setlocale (LC_ALL, "").
* gtk/gtkmain.c (gtk_set_locale): Indicate in the
docs that this function is not typically useful.
* gdk/x11/{gdkim-x11.c,gdkmain-x11.c,gdkprivate-x11.h}:
Automatically initialize GDK for the current locale
on gdk_init(). Don't reset locale to C when
XSupportsLocale() fails.
* gdk/linux-fb/gdkim-fb.c (gdk_set_locale): Remove
useless checks for UTF-8 locale breakage that mattered
only for X.
* examples/calendar/calendar.c
tests/{testgtk.c,testtext.c,testcalendar.c}: Remove calls to
gtk_set_locale().
* gtk/gtkiconfactory.c gtk/gtkitemfactory.c:
gdk_pixbuf_new_from_stream => gdk_pixbuf_new_from_inline.
Tue Oct 9 17:40:24 2001 Jonathan Blandford <jrb@redhat.com>
* gtk/gtktreestore.c (gtk_tree_store_finalize): We're a gobject,
not a GtkObject. Thanks andersca.
* gtk/gtkliststore.c (gtk_list_store_finalize): ditto
2001-10-08 Havoc Pennington <hp@pobox.com>
* demos/gtk-demo/stock_browser.c: remove unused enum
* gtk/gtktreeselection.c (gtk_tree_selection_real_select_node):
pass the current selection state of the node in to the user
selection func
Fri Oct 5 20:50:00 2001 Jonathan Blandford <jrb@redhat.com>
* gtk/gtktreestore.c (gtk_tree_store_iter_has_child): improve
warning.
* gtk/gtktreemodel.c (gtk_tree_row_reference_new_proxy): ref and
unref nodes, #okay61676
* gtk/gtktreeviewcolumn.c (gtk_tree_view_column_sort): we listen
to the property; no need to clear the other columns. Also, we go
to 'unsorted' if the model supports it.
2001-10-05 Sven Neumann <sven@gimp.org>
* gdk-pixbuf/gdk-pixbuf-io.c
* gdk-pixbuf/gdk-pixbuf-private.h
* gdk-pixbuf/gdk-pixbuf.c
* gdk-pixbuf/gdk-pixbuf.h
* gdk-pixbuf/io-jpeg.c
* gdk-pixbuf/io-png.c: changed GDK_PIXBUF_ERROR_BAD_OPTION_VALUE to
GDK_PIXBUF_ERROR_BAD_OPTION to we can use it for bad keys too. Added
new public API gdk_pixbuf_get_option() to retrieve key/value pairs
set by an image loader. Added support for saving and reading PNG tEXt
chunks in PNG images.
* demos/testpixbuf-save.c
* demos/testpixbuf-scale.c: simple tests for the new PNG tEXt chunk
feature.
* gdk-pixbuf/tmpl/gdk-pixbuf.sgml: adapt to changes in GDK_PIXBUF_ERROR
enum.
Fri Oct 5 19:06:07 2001 Kristian Rietveld <kristian@planet.nl>
* gtk/gtktreeview.c (gtk_tree_view_leave_notify): should
destroy the search dialog
* gtk/gtktreeview.c (gtk_tree_view_real_start_interactive_search):
added check to prevent creation of a search dialog if there's
already one around
* gtk/gtktreeview.c: Define GTK_TREE_VIEW_SEARCH_DIALOG_KEY, and use
it instead of "search-dialog" (when getting/setting the search dialog
widget).
2001-10-04 Havoc Pennington <hp@pobox.com>
Fix#56586
* gtk/gtksettings.c (gtk_settings_class_init): move the F10
accelerator setting here...
* gtk/gtkmenubar.c (gtk_menu_bar_class_init): ...from over here,
because we try to use it when a menu bar hasn't necessarily been
initialized.
2001-10-03 Havoc Pennington <hp@redhat.com>
* tests/testtextbuffer.c (logical_motion_tests): fix test case,
it previously verified incorrect behavior
Fixes for #61565
* gtk/gtktextiter.c (gtk_text_iter_set_line): don't return lines
off the end
(_gtk_text_btree_get_iter_at_line_char): don't return lines off
the end
(_gtk_text_btree_get_iter_at_line_byte): don't return lines off
the end
(gtk_text_iter_forward_lines): if on the last line, move to end of
it
* gtk/gtktextbtree.c (_gtk_text_btree_last_could_contain_tag):
don't return a line off the end
Wed Oct 3 23:47:25 Kristian Rietveld <kristian@planet.nl>
* gtk/gtkeditable.[ch]: move insert_text and delete_text virtual
functions to do_insert_text and do_delete_text, add signals
insert_text, delete_text and changed
* gtk/gtkentry.[ch]: remove signals insert_text, delete_text
and changed. Updates to match new situation.
* gtk/gtkspinbutton.c: updates to match new situation
* gtk/gtkoldeditable.h: remove signals changed, insert_text
and delete_text
* gtk/gtkoldeditable.c: updates to match new situation
* gtk/gtktext.c: updates to match new situation
Fixes bug #59803
2001-10-02 Havoc Pennington <hp@redhat.com>
Throughout: assorted docs
* gdk/gdkwindow.h: deprecate gdk_window_set_hints(), it's broken,
gdk_window_set_geometry_hints() should be used instead.
* gdk/gdkimage.h: deprecate gdk_image_ref, gdk_image_unref, and
document them
* gdk/x11/gdkx.h: remove gdk_get_client_window() since it doesn't
seem to exist in any .c files
* gdk/x11/gdkcolor-x11.c (gdk_colormap_query_color): docs,
g_return_if_fail (pixel < colormap->size).
Wed Oct 3 10:42:54 2001 Owen Taylor <otaylor@redhat.com>
* gtk/gtkdnd.c (gtk_drag_dest_find_target): Allow
NUOL for @target_list to mean, use
gtk_drag_dest_get_target_list (widget).
* gtk/gtkdnd.c (gtk_drag_finish): Fix problem where
drop could hang when calling gtk_drag_finish with
success == FALSE and del == TRUE.
* gtk/gtkdnd.c (gtk_drag_dest_drop): Fix problem where
drops without a matching target found would propagate
to the parent widget rather than being rejected.
* gtk/gtktextview.c (gtk_text_view_drag_data_received):
Use text_view->dnd_mark instead of mark name to be
consistent with the rest of the code.
* gtk/gtktextview.c (gtk_text_view_drag_motion): Make
pendantically correct for a drop-only-in-some-places
widget. (Check whether you can insert in drag_drop,
not just in drag_motion ... matters in theory, and
for Motif drag and drop in practice.)
* gtk/gtkentry.c (gtk_entry_drag_drop): Patch from
Damian Ivereigh to not allow drops on non-editable
entries. (#61124)
* gtk/gtkentry.c (gtk_entry_motion_notify): Don't allow
text to be moved from a non-editable entry.
2001-10-03 James Henstridge <james@daa.com.au>
* gtk/gtktreeviewcolumn.c (gtk_tree_view_column_set_fixed_width):
s/width/fixed_width/ in order to get things to compile.
Tue Oct 2 20:18:32 2001 Kristian Rietveld <kristian@planet.nl>
* demos/gtk-demo/Makefile.am: add editable_cells.c,
list_store.c and tree_store.c
* demos/gtk-demo/appwindow.c: remove tearoff item from
File menu, put menubar and toolbar in handle boxes.
* demos/gtk-demo/genincude.pl: various changes to support trees
* demos/gtk-demo/main.c: various changes to support trees
* demos/gtk-demo/stock_browser.c: changed name of demo
to Stock Item and Icon Browser, so geninclude.pl doesn't see
it as child
* demos/gtk-demo/editable_cells.c: new file/demo
* demos/gtk-demo/list_store.c: new file/demo
* demos/gtk-demo/tree_store.c: new file/demo
* gtk/gtkitemfactory.c (gtk_item_factory_parse_rc_scanner): replace
g_scanner_add/remove_symbol by g_scanner_scope_add/remove_symbol.
* gtk/gtkrc.c (gtk_rc_parse_any): here as well.
Sun Sep 30 22:15:52 2001 Manish Singh <yosh@gimp.org>
* gtk/gtkcheckbutton.c (gtk_check_button_size_allocate): Applied
patch from Soeren Sandmann <sandmann@daimi.au.dk>. Vertically
centers the child in relation to the to indicator height.
