2000-10-04 Havoc Pennington <hp@redhat.com>
* gtk/testgtk.c (create_buttons): create some stock buttons
with the default accel group
(create_image): test some new GtkImage features
(make_message_dialog): test GtkMessageDialog
(create_modal_window): fix someone's bizzarro indentation
* gtk/gtkwindow.h, gtk/gtkwindow.c: Implement
GTK_WIN_POS_CENTER_ON_PARENT.
Add "destroy with parent" setting, which means the window goes
away with its transient parent.
(gtk_window_get_default_accel_group): get the default accel group
for the window.
(gtk_window_set_destroy_with_parent): set/unset destroy with
parent flag
(gtk_window_read_rcfiles): invalidate icon set caches
after reloading rcfiles
* gtk/gtkenums.h (GtkWindowPosition): add
GTK_WIN_POS_CENTER_ON_PARENT, which centers a dialog
on its parent window when the dialog is mapped for the first time.
* gtk/gtkmessagedialog.h, gtk/gtkmessagedialog.c: Add
a simple message dialog class
* gtk/gtkdialog.c (gtk_dialog_init): Connect delete event
handler to emit response signal, and maybe later it would
honor a hide_on_delete flag - though that isn't there yet.
Set border width on the vbox to 2, so we get some padding.
Use a button box for the action area.
(gtk_dialog_key_press): synthesize a delete event if Esc
is pressed and the GtkWidget key press handler didn't
handle the escape key.
(gtk_dialog_new_with_buttons): new function creates a dialog
with some default buttons in it.
(gtk_dialog_add_action_widget): add an activatable widget
as a button in the dialog - you can also add a non-activatable
widget by accessing the action area directly.
(gtk_dialog_add_button): add a simple button - stock ID or
label - to the action area
(gtk_dialog_response): emit response signal
(gtk_dialog_run): block waiting for the dialog, return
the response. Override normal delete_event behavior, so that
delete_event does nothing inside gtk_dialog_run().
* gtk/gtkdialog.h, gtk/gtkdialog.c: Add "response" signal
emitted when an action widget is clicked or the dialog gets
delete_event
* gtk/gtk.h: add gtkmessagedialog.h
* gtk/Makefile.am: add gtkmessagedialog.[hc]
2000-10-20 Havoc Pennington <hp@redhat.com>
* gtk/gtk-sections.txt: Add dialog docs
2000-10-18 Havoc Pennington <hp@redhat.com>
* gtk/gtk-sections.txt: Some updates
* gdk/gdk-sections.txt: remove GdkPixbufAlphaMode
* gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove
GdkPixbufClass/GdkAnimationClass since those are private
* gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers
2000-10-18 Havoc Pennington <hp@redhat.com>
* gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug
where any number of empty lines would get skipped
* gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the
edge.
* gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the
warning about invalid iterators (explain more thoroughly)
(gtk_text_iter_in_region): rename gtk_text_iter_in_range
* gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less
big
* demos/*.c: Add error handling
* gtk/gtktextbuffer.c: don't modify const iterators
* gtk/gdk-pixbuf-loader.c: Add full error handling here
* gtk/gtkimage.c (gtk_image_set_from_file): ignore errors
on file load
* gtk/gtkiconfactory.c: Update to reflect addition of error
handling to gdk-pixbuf loaders
2000-10-16 Havoc Pennington <hp@redhat.com>
* gdk-pixbuf-io.c (gdk_pixbuf_get_module)
(gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module):
add error reporting here also
* make-inline-pixbuf.c (main): use GError
* io-xpm.c: include unistd.h
* gdk-pixbuf-util.c: include string.h
* io-*.c: add error reporting
* gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add
error reporting
* gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting
* gdk-pixbuf-io.h: Add GError** to load_increment and load
methods
* gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return
a G_FILE_ERROR if we fail to write or close the file.
* gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use
G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following
the GError naming rules. Add GError** to load functions.
Wed Oct 18 11:14:05 2000 Owen Taylor <otaylor@redhat.com>
* configure.in demos/Makefile.am demos/testgtk/*: Start of work to
move to new modularized testgtk.
2000-10-17 <jrb@redhat.com>
* gtk/gtktreestore.c (gtk_tree_store_get_type): Get the correct
parent when generating my type.
* gtk/gtkmarshal.list: Added four more marshallers: INT:NONE,
POINTER:NONE, POINTER:POINTER, and POINTER:POINTER,INT.
2000-10-15 Jonathan Blandford <jrb@redhat.com>
* gtk/gtktreeview.c (gtk_tree_view_insert_column): New function
proposed by Guy Harris <gharris@flashcom.net>. Also, added API
docs to all public functions.
2000-10-09 Tor Lillqvist <tml@iki.fi>
* README.win32: Update.
* gdk/win32/gdkgeometry-win32.c (gdk_window_clip_changed): Add two
lines that had been deleted by mistake (?).
* gdk/win32/gdkcursor-win32.c (gdk_cursor_new_from_pixmap): Handle
also the case fg==white and bg==black (but still not randomly
coloured cursors). Thanks to Wolfgang Sourdeau.
* gdk/win32/*.c: Silence gcc -Wall.
* gtk/gtk.def: Add missing entry points.
Fixes by Hans Breuer:
* gdk/makefile.msc
* gdk/win32/makefile.msc: Update.
* gdk/testgdk.c: If compiling with debugging (with _DEBUG defined,
some MSVC thing, presumably), cause breakpoint on failures. Add
GDK_NOR case. Call g_log_set_always_fatal.
* gdk/win32/gdkwin32id.c (gdk_win32_handle_table_insert): Handle
should be pased by reference.
* gdk/win32/gdkprivate-win32.h: Correct declaration accordingly.
* gdk/win32/*.c: Correct calls to gdk_win32_handle_table_insert.
* gdk/win32/gdkevents-win32.c
* gdk/win32/gdkwindow-win32.c: Handle WM_CREATE.
* gdk/win32/gdkgc-win32.c: Fix mixups of drawable and
implementation object.
* gdk/win32/gdkimage-win32.c (gdk_image_get): Handle drawables,
not just windows.
* gdk/win32/gdkpixmap-win32.c (gdk_pixmap_impl_win32_finalize):
Use the wrapper object.
2000-10-06 Havoc Pennington <hp@redhat.com>
* Makefile.am (SRC_SUBDIRS): contrib subdir
* gdk/gdkpixbuf.h: Move GdkPixbufAlphaMode to gdk-pixbuf library,
so it can be used in Xlib version
* demos/testpixbuf.c (update_timeout): error checking from 1.0
tree
* gtk/gdk-pixbuf-loader.c (gdk_pixbuf_loader_get_pixbuf): Sync
change from 1.0 tree that returns first frame of animation
if the loaded file is an animation.
* contrib: add new directory to hold stuff that comes with GTK+
but isn't really part of GTK+ (for now, gdk-pixbuf-xlib)
* configure.in: add contrib/*
2000-10-06 Havoc Pennington <hp@redhat.com>
* gdk-pixbuf.h: add GdkPixbufAlphaMode
2000-10-06 Havoc Pennington <hp@redhat.com>
This entry is a summary of the merged-in changes from 1.0.
Relevant original ChangeLog entries are spliced in after
this entry; the files they refer to are from the 1.0
gdk-pixbuf sources.
* pixops/pixops.c (pixops_composite_nearest): sync a small fix
from 1.0
* io-xpm.c (xpm_seek_string): add fscanf error check from 1.0
Add progressive loader from 1.0
* io-tiff.c (gdk_pixbuf__tiff_image_begin_load): mem leak fixes
from 1.0 tree
* io-pnm.c: new version from 1.0 tree
* io-jpeg.c (gdk_pixbuf__jpeg_image_load): sync from 1.0, use
malloc not g_malloc
* io-gif.c (lzw_read_byte): sync from 1.0, change a g_error to
g_warning
(gif_get_next_step): return 0 here, sync from 1.0
* gdk-pixbuf-util.c: sync email address change for Cody
Russell
2000-09-11 Jeffrey Stedfast <fejj@helixcode.com>
* gdk-pixbuf/io-pnm.c: Pretty much totally rewrote again because
last nights code was still "broken". Should now properly handle
all error conditions gracefully.
2000-09-10 Jeffrey Stedfast <fejj@helixcode.com>
* gdk-pixbuf/io-pnm.c: Rewrote.
2000-09-09 Federico Mena Quintero <federico@helixcode.com>
* gdk-pixbuf/pixops/pixops.c (pixops_composite_nearest): Compute
the correct dest offset.
2000-08-25 Federico Mena Quintero <federico@helixcode.com>
* gdk-pixbuf/io-xpm.c: #include <unistd.h>
2000-08-05 Larry Ewing <lewing@helixcode.com>
* gdk-pixbuf/io-tiff.c: stop leaking context->tempname.
* gdk-pixbuf/io-xpm.c: same as above.
2000-07-26 Michael Meeks <michael@helixcode.com>
* gdk-pixbuf/io-jpeg.c (gdk_pixbuf__jpeg_image_load): make
g_malloc a malloc.
2000-07-21 Larry Ewing <lewing@helixcode.com>
* gdk-pixbuf/io-xpm.c: add a fake progressive loader so that
xpm at least supports the progressive interface like the one in
io-tiff.c. This should be reimplemented as an actual progressive
loader.
2000-07-19 Jonathan Blandford <jrb@redhat.com>
* demo/pixbuf-demo.c (update_timeout): changed scaling level to
make it look better.
* gdk-pixbuf/testpixbuf.c (update_timeout): Patch from michael
meeks to handle errors better.
2000-10-05 Jonathan Blandford <jrb@redhat.com>
* gtk/gtktree.h (GTK_TREE_SELECTION): Replaced with
GTK_TREE_SELECTION_OLD to prevent conflict with gtktreeselection.c
* gtk/testgtk.c: s/GTK_TREE_SELECTION/GTK_TREE_SELECTION_OLD/
* gtk/gtktreeselection.[ch]: Replaced
"node_selected"/"node_unselected" signal with "selection_changed"
signal.
Mon Sep 25 15:05:17 2000 Owen Taylor <otaylor@redhat.com>
* gdk/gdkwindow.h gdk/x11/gdkwindow-x11.c (gdk_window_iconify):
Add gdk_window_iconify.
* gdk/gdkwindow.h gdk/x11/gdkwindow-x11.c
(gdk_window_set_geometry_hints): Add win_gravity
to geometry structure.
* gdk/x11/gdkevents-x11.c (gdk_wm_protocols_filter):
Implement _NET_WM_PING.
* gdk/x11/gdkmain-x11.c (_gdk_windowing_init_check):
Set _NET_WM_PID on the client leader.
* gdk/x11/gdkwindow-x11.c (gdk_window_set_icon_name):
Handle UTF-8 better.
* gdk/x11/gdkwindow-x11.c (gdk_window_set_title): Handle
UTF-8 better, set _NET_WM_NAME as well. Only set
icon name if it hasn't previously been explicitely
set.
2000-10-03 Havoc Pennington <hp@redhat.com>
* gtk/testtextbuffer.c: clean up trailing whitespace,
add extensive tests for tag toggle iteration.
* gtk/gtktextiter.c (MAX_LINEAR_SCAN): decrease linear scan
distance
* gtk/gtktextbtree.c (gtk_text_line_next_could_contain_tag):
optimize case where the tag root is on level 1
(gtk_text_line_previous_could_contain_tag): attempt to implement
(gtk_text_line_next_could_contain_tag): Abstract out node_compare
functionality
* gtk/gtktextiter.c (gtk_text_iter_backward_to_tag_toggle):
Implement this, though not very efficiently.
* gtk/gtktextiterprivate.h: reformat
* gtk/gtktextiter.c (gtk_text_iter_get_char): return 0 on the end
iterator
* gtk/gtktextbuffer.c (gtk_text_buffer_delete_interactive): Fix
this to properly revalidate the iterators.
* gtk/gtktextview.c (gtk_text_view_delete): fix control-K to work
properly at the end of the line (and therefore on empty lines)
* gtk/gtktextbtree.c (gtk_text_btree_get_selection_bounds): Gee,
maybe we should return a value...
2000-10-03 Tor Lillqvist <tml@iki.fi>
* config.h.win32: Guard definition of alloca(). glib.h now handles
that.
* gdk/gdk.def
* gtk/gtk.def: Add new entry points.
Changes just to make GTK+ build without errors on Win32. No hope
of it working in its current state, though...:
* gdk/win32/gdkselection-win32.c: Remove gcc -Wall warnings. Add
some functions from the X11 backend, just to make GTK+ build.
* gdk/makefile.mingw.in
* gtk/makefile.mingw.in: Use correct gdk_pixbuf version
number. Add new object files.
* gtk/gtkclipboard.c: Include gdkwin32.h on Win32. Use
GetMessageTime to get timestamp (where on X11 uses
gdk_x11_get_server_time()).
2000-10-02 Havoc Pennington <hp@pobox.com>
* gtk/gtktextview.c: text_window_* weren't static and should have
been.
Start work on child widgets; not yet complete,
syncing to
office computer.
* gtk/gtktextchild.h: change this to contain a public interface,
starting work on child interfaces.
* gtk/gtktextchildprivate.h: move private interfaces here
* gtk/Makefile.am: update to reflect gtktextchildprivate.h
* gtk/gtktextview.h, gtk/gtktextview.c, gtk/gtktextbuffer.h,
gtk/gtktextbuffer.c, gtk/gtktextiter.h, gtk/gtk/textiter.c,
gtk/gtktextmark.c: copyright notices
* gtk/gtktextmarkprivate.h: reformat, and put _ in
front of
internal functions
* gtk/gtktextchild.c (_pixbuf_segment_new): put _ in front of
internal function
* gtk/gtktextlayout.c (gtk_text_layout_get_line_display):
Reformatting
2000-09-30 Havoc Pennington <hp@pobox.com>
* gtk/gtktextbtree.c (gtk_text_btree_get_selection_bounds): Handle
NULL start/end pointers
* gtk/gtktextbuffer.c: Write some docs
(gtk_text_buffer_get_selection_bounds): Allow start/end to be
NULL, so you can just check whether there's a selection.
* gtk/gtktextbtree.c (gtk_text_btree_remove_mark): No need to
cleanup_line or segments_changed ourselves, it gets done
in unlink_segment
* gtk/gtktextmark.h:
s/gtk_text_mark_deleted/gtk_text_mark_get_deleted/
* gtk/gtktextsegment.h: Clean up some indentation and naming mess
* gtk/gtktextmark.c: delete some more old Tk cruft
* gtk/gtktextbuffer.c (gtk_text_buffer_delete_mark): add ref to
mark before removing it, so we can emit MARK_DELETED with a valid
pointer.
(gtk_text_buffer_mark_set): hold ref across signal emission
* gtk/gtktextbtree.c (gtk_text_btree_remove_mark): improve
whining about attempts to delete special marks
* gtk/gtktextbuffer.c (_gtk_text_buffer_spew): Prepend with
underscore, since it's internal.
* gtk/gtktextbuffer.h: Remove find_string prototype, this is
now implemented in terms of iterators in gtktextiter.h
* gtk/gtktextbuffer.c (gtk_text_buffer_set_text):
New function, destructively sets contents of buffer. Also
a convenient way to clear the buffer by setting text to ""
* gtk/gtktextiter.c (gtk_text_iter_make_surreal): reformat
multiline string literal
* gtk/testtext.c (text_changed_callback): Redraw line numbers if
text changes.
* gtk/gtktextiter.c (forward_char): Return FALSE if new location
is not dereferenceable
(gtk_text_iter_forward_lines): fix return value
2000-09-29 Havoc Pennington <hp@redhat.com>
* gtk/gtktexttag.c (gtk_text_tag_set_priority): fix indentation
* gtk/gtktextview.c: Implement drag thresholding; change functions
that set border window size to have nicer name
(gtk_text_view_mark_set_handler): Fix this to have the
right signature.
* gtk/testtextbuffer.c (fill_buffer): Update with pixbuf changes
* gtk/testtext.c: Update with API changes, put line numbers on
both sides.
* gtk/gtktextiter.c (gtk_text_iter_get_pixbuf): Replace get_pixmap
with this
* gtk/gtktextchild.h, gtk/gtktextchild.c: replace all pixmap with
pixbuf; delete a big block of #if 0 Tk code
* gtk/gtktextbuffer.c (gtk_text_buffer_insert_pixbuf): Replace
insert_pixmap with insert_pixbuf
2000-09-29 Martin Baulig <baulig@suse.de>
* Makefile.am (pkgconfigdir): Set this to `$(libexecdir)/pkgconfig';
this is the directory where pkg-config actually looks.
* gdk-pixbuf.pc.in: Renamed to gdb-pixbuf-2.0.pc.in to avoid
confusion with the GdkPixbuf of the GNOME 1.x platform.
* *.pc.in: Made the pkg-config scripts actually work.
2000-09-29 Havoc Pennington <hp@pobox.com>
* gtk/gtktextview.c: Implement the side windows.
* gtk/testtext.c: Implement simple line numbering in the
left side window; seems to make scrolling sloooow. Oops.
Also, cursor blink is for some reason causing redraws
of the line numbers. Should investigate...
2000-09-28 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c: Set up infrastructure to deal with lots of
scrolling child windows, and draw focus rectangle properly.
(gtk_text_view_buffer_to_window_coords):
Coordinate transformation to deal with all these freaking windows
and offsets
(gtk_text_view_window_to_buffer_coords): transform the other way
* gtk/testtext.c (create_buffer): Update to match Pango API change
* gtk/gtktexttagtable.c (gtk_text_tag_table_foreach): Go over the
anonymous tags
(foreach_unref): don't emit remove signal from finalize, just
set tag's parent to NULL
2000-09-25 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c: Draw the focus, and leave space to do so.
* gtk/gtktexttypes.c: Remove Latin1 conversion stuff
* gtk/gtktextbtree.c (gtk_text_btree_node_remove_data):
Fix a bug when removing node data, we didn't properly
re-splice the linked list after removing the data.
* gtk/gtktextview.c (gtk_text_view_key_press_event): Pass through
GDK_Tab as literal tab, Ctrl-Tab to tab to focus widget
* gtk/gtktextbuffer.c (selection_received): fix g_convert usage
* gtk/gtktextlayout.c (set_para_values): Set tab array
for the layout from the GtkTextTag.
* gtk/gtktexttypes.h: delete tab and search cruft,
remove g_convert() in favor of GLib version
* gtk/gtktexttypes.c: remove tab implementation from here,
move to Pango
* gtk/gtktexttag.h, gtk/gtktexttag.c: Implement
tab stuff using new PangoTabArray from Pango
* gtk/gtktexttag.c (gtk_text_attributes_fill_from_tags): Remove
unused border_width stuff
2000-09-08 Jonathan Blandford <jrb@redhat.com>
* gtk/gtktextdisplay.c
* gtk/gtktextlayout.c
* gtk/gtktexttag.c
* gtk/gtktexttag.h
* gtk/testtext.c: Change the overstrike property to strikethrough,
to closer match pango.
Fri Sep 8 14:28:00 2000 Owen Taylor <otaylor@redhat.com>
* gtk/gtktextview.c: Fix up visibility so that focus,
cursor_visible and blink interact properly. Reenable cursor blink
which had been roughly disabled. Make blink and focus
properly per-view.
* gtk/gtktextlayout.[ch] (gtk_text_layout_set_cursor_visible):
Add a flag for whether to display insertion cursor and
a function to set the flag.
* gtk/gtktextlayout.c (gtk_text_layout_get_line_yrange): Change
get_line_y() to get_line_yrange(), to be a bit more generally
useful.
Thu Sep 07 20:54:33 2000 George Lebl <jirka@5z.com>
* gtk/gtkmenu.c: in gtk_menu_set_submenu_navigation_region
do stop_navigating_submenu, to clear last timeout properly.
Also in gtk_menu_motion_notify move ignore_enter above
the conditional to make it always happen as suggested by Owen
2000-09-07 Tor Lillqvist <tml@iki.fi>
* gdk/win32/makefile.mingw.in: Use -Wall. Add gdkpango-win32.o
* gdk/win32/gdkwin32.h: Add more definitions missing from the free
w32api headers.
* gdk/win32/gdkprivate-win32.h: Add a couple of missing
declarations.
* gdk/win32/gdkdrawable-win32.c: Remove gcc -Wall warnings.
(gdk_win32_get_colormap): A line had been deleted by mistake.
* gdk/win32/gdkevents-win32.c: Remove lint (gcc -Wall) here, too.
(gdk_event_translate): Handle more virtual keycodes to be able to
generate GDK events for Control-comma, Control-period, etc.
* gtk/gtk.def: Add some missing entry points.
2000-09-07 Tor Lillqvist <tml@iki.fi>
* makefile.mingw.in: Use own version number for gdk-pixbuf DLLs,
like on Unix.
Thu Sep 7 14:15:03 2000 Owen Taylor <otaylor@redhat.com>
* gdk/* gtk/*: Move gtk-reference files into GTK+ tree proper.
* Update sections.txt files to correspond to current code,
tweak .sgml files and Makefiles to correspond.
* gtk/tmpl/gtkradiomenuitem.sgml (this): Remove extra <para>
2000-09-05 Sebastian Wilhelmi <wilhelmi@ira.uka.de>
* configure.in (use_mmx_asm): Remove conftest* after use along the
lines of AC_TRY_COMPILE.
* .cvsignore updates
2000-09-05 Sebastian Wilhelmi <wilhelmi@ira.uka.de>
* gtk/gtkrc.c (gtk_rc_parse_file): Use g_path_get_dirname instead
of g_dirname, which is deprecated.
(gtk_rc_parse_any): Removed calls to
g_scanner_{freeze,thaw}_symbol_table, which are deprecated.
* gtk/gtkbindings.c (binding_entry_new, binding_entry_destroy):
Removed calls to g_hash_table_{freeze,thaw}, as they are
deprecated now.
* gtk/testtext.c (buffer_pretty_name): Use g_path_get_basename
instead of g_basename.
Sun Sep 03 00:47:08 2000 George Lebl <jirka@5z.com>
* gtk/gtkwidget.h: Add some documenting comments about
GTK_CAN_DEFAULT, GTK_HAS_DEFAULT and GTK_RECEIVES_DEFAULT
just as owen said on irc.
* gtk/gtkwindow.c (gtk_window_set_default): Don't blindly
set HAS_DEFAULT. Only set it if there isn't another window
holding it (a focus window which RECEIVES_DEFAULT) and only unset
it if the widget is not the focused window with RECEIVES_DEFAULT.
This fixes weird double default bugs in dialogs which has things
call gtk_window_set_default at times.
Fri Sep 1 22:39:07 2000 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenu.[ch] TODO.xml: Apply patch from
Nils Barth and David Santiago to improve submenu
navigation. The patch does this by creating a triangular
region from the point where the pointer leaves the
menu to the submenu. While the pointer is in
that region and a timeout has not expired, events
that would cause the active submenu to change are
ignored.
Fri Sep 1 15:34:46 2000 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkwindow-x11.c (gdk_window_move): Fix bug where
moving a toplevel window immediately after sizing it would
result in it being sized back to the old size since
impl->width, impl->height aren't updated until we hear
back from the server. There is still a (longstanding) bug
here that gdk_window_get_size() will give the wrong size
until we do hear back.
2000-08-31 Havoc Pennington <hp@pobox.com>
* gtk/gtktextbtree.c (GtkTextBTree): cache end line,
for rapid testing whether an iterator is the end iterator
(gtk_text_btree_new): init end line cache
(gtk_text_line_is_last): use fast cached line to
see if we're the last line.
(get_last_line): use cached line here too, should
speed up some random unrelated code.
2000-08-30 Havoc Pennington <hp@pobox.com>
* gtk/gtkmarshal.list: Add marshallers for changed GtkTextBuffer
signals.
* gtk/gtktextbuffer.h: Add "interactive" arg to insert_text and
delete_text signals. This allows the signals to be used for
implementing undo.
* gtk/gtktextbuffer.c: Change signal handler signatures;
provide "interactive" argument when emitting insert_text or
delete_text signal.
