2006-02-08 Matthew Barnes <mbarnes@redhat.com>
** Fixes bug #357216
* widgets/text/e-entry.c: Remove "font", "fontset", and "gdk_font"
properties, since they forward gets and sets to non-existant
properties in entry->item.
* widgets/table/e-table-field-chooser-item.c:
* widgets/table/e-table-field-chooser-item.h:
* widgets/table/e-table-group-container.c:
* widgets/table/e-table-group-container.h:
Replace deprecated GdkFont with PangoFontDescription.
* widgets/table/e-table-header-item.c:
* widgets/table/e-table-header-item.h:
Replace deprecated GdkFont with PangoFontDescription.
Rename "fontset" property to "font-desc", and change the property
type to a boxed PangoFontDescription.
svn path=/trunk/; revision=33185
2006-07-10 Rajeev ramanathan <rajeevramanathan_2004@yahoo.co.in>
Added code for Resize Transparency with Cairo drawing.
Added code to render ECell and EText text items with
antialiasing, hinting and sub-pixel ordering with cairo.
svn path=/trunk/; revision=32270
2006-01-15 Srinivasa Ragavan <sragavan@novell.com>
** Fixes bug #220286
* text/e-text.c: (tooltip_ungrab), (_do_tooltip), (e_text_event):
Added a ungrab for keyboard, so that it hides the tooltip.
svn path=/trunk/; revision=31185
2006-01-11 Johnny Jacob <johnnyjacob@gmail.com>
* text/e-text.c (e_text_set_property): Add the width to
the pango layout.
svn path=/trunk/; revision=31138
2005-09-28 Tor Lillqvist <tml@novell.com>
* text/Makefile.am: On Win32, use bootstrap import library for
libemiscwidgets, which hasn't been built yet when we come
here. Drop several overlapping CFLAGS. EXTRA_GNOME_CFLAGS
should be enough. Install in privsolib instead of privlib (no
difference on Unix). Use NO_UNDEFINED. Link with all needed
libraries to satisfy the -no-undefined used on Windows.
svn path=/trunk/; revision=30409
2005-06-23 Kaushal Kumar <kakumar@novell.com>
* e-util/Makefile.am, widgets/e-timezone-dialog/Makefile.am,
addressbook/gui/search/Makefile.am,
plugins/groupwise-features/Makefile.am: Added widgets in INCLUDES.
Updated the include paths to use misc instead of widgets/misc.
svn path=/trunk/; revision=29574
2005-06-17 Kaushal Kumar <kakumar@novell.com>
* Retired GAL from Head. The relevant files have moved inside
evolution. Thanks to JP Rosevear for performing the cvs surgery. The
files have been moved in the following order.
evolution/e-util <- gal/gal/util
evolution/a11y <- gal/gal/a11y
evolution/a11y/e-table <- gal/gal/a11y/e-table
evolution/a11y/e-text <- gal/gal/a11y/e-text
evolution/widgets/table <- gal/gal/e-table
evolution/widgets/text <- gal/gal/e-text
evolution/widgets/misc <- gal/gal/widgets
evolution/widgets/misc/pixmaps <- gal/gal/widgets/pixmaps
evolution/widgets/menus <- gal/gal/menus
Following is the summary of changes done to fix the build:-
- New files added to cvs repository,
- a11y/e-table/Makefile.am
- a11y/e-text/Makefile.am
- widgets/table/Makefile.am
- widgets/text/Makefile.am
- widgets/misc/pixmaps/Makefile.am
- iconv-detect.h
- iconv-detect.c
- Updated configure.in.
- Updated all the relevant Makefile.am files.
- Updated the include paths to replace all gal references.
- Updated the marshal list to suit gal files requirements.
svn path=/trunk/; revision=29522
2005-04-29 Tor Lillqvist <tml@novell.com>
Port to Windows, initial commit:
* configure.in: Check for Win32, define Automake conditional
OS_WIN32. Check for regexec() perhaps in separate -lregex, define
REGEX_LIBS if so. Require glib-2.0 >= 2.6 (and thus also gtk+-2.0
>= 2.6) so that we can use the gstdio wrappers for full support of
non-ASCII filenames on Win32. Don't use -D_REENTRANT on Win32, has
ne special meaning.
* gal.pc.in: Require gtk+-2.0 >= 2.6 also here for consistency.
* gal-zip.in: New file, used to build zipfile format distribution
of gal for Win32.
* configure.in
* Makefile.am: Add gal-zip(.in).
* */Makefile.am
* */*.c: Harmonize -I and #include conventions. (Of course, this
hasn't anything to do with Windows porting as such, I just got
carried away...) Use only -I$(top_srcdir). Use paths to gal
headers staring with "gal", except for headers from the same
directory as the .c file, which are included as such. Include all
gal headers using doublequotes. Sort #includes and remove
duplicates and obvious redundancies. Include config.h first
without any HAVE_CONFIG_H, then system headers, then other GNOME
lib headers, than gal's own headers. Just include gtk.h instead of
separate gtk*.h headers. Don't include gi18n.h, include e-i18n.h
to use e_gettext() consistently.
* gal/Makefile.am: Use -no-undefined on Win32 so that libtool
agrees to build a shared library. Because of the bidirectional
dependency between libgal and libgal-a11y we can build libgal-a11y
sanely as a shared library on Win32, so we don't install any
separate libgal-a11y at all. So, on Win32, link the stuff that
goes into libgal-a11y also into libgal. Link with REGEX_LIBS.
* gal/a11y/Makefile.am: See above. Just build a dummy static
libgal-a11y on Win32 (can't convince Automake not to build the
library at all on one platform using Automake ifdef,
apparently). Then (this is a gross hack) explicitly remove the
library after installation in the install-data-local rule.
* gal/e-table/Makefile.am
* gal/e-table/e-table-config.c: Rename ETABLE_GLADEDIR to
GAL_GLADEDIR for consistency.
* gal/e-table/e-cell-date.c: No localtime_r() in Microsoft's C
library, but its localtime() *is* thread-safe.
* gal/e-table/e-cell-text.c
* gal/e-table/e-cell-tree.c
* gal/e-table/e-cell-vbox.c
* gal/e-text/e-text.c
* gal/widgets/e-unicode.c: Remove unnecessary inclusion of gdkx.h.
* gal/e-table/e-cell-tree.c (ect_realize): Instead of the Xlib
macro None (whose value is zero), use the corresponding
zero-valued enums from the appropriate GDK type.
* gal/e-table/e-table-config.c
* gal/e-table/e-table-field-chooser.c
* gal/menus/gal-define-views-dialog.c
* gal/menus/gal-view-instance-save-as-dialog.c
* gal/menus/gal-view-new-dialog.c
* gal/widgets/e-categories-master-list-array.c
* gal/widgets/e-categories-master-list-dialog.c
* gal/widgets/e-categories.c: Use g_build_filename() to construct
pathnames at run-time instead of compile-time. On Windows the
macros GAL_GLADEDIR and GAL_IMAGESDIR expand to function calls, in
order to support installing in a freely chosen location.
* gal/e-table/e-table-item.c
* gal/e-table/e-cell-vbox.c: Instrad of the Xlib GrabSuccess, use
GDK_GRAB_SUCCESS (which has the same value).
* gal/e-table/e-table-specification.c (e_table_specification_load_from_file)
* gal/e-table/e-table.c (e_table_load_specification)
* gal/e-table/e-tree-table-adapter.c (open_file)
* gal/menus/gal-view-instance.c (load_current_view)
* gal/menus/gal-view-instance.c (load_current_view): On Win32,
convert filename to the locale character set before passing to
xmlParseFile() which doesn't use UTF-8 filenames. Use gstdio
wrappers.
* gal/util/Makefile.am: Define GAL_PREFIX as $prefix. Define
GAL_LOCALEDIR, GAL_GLADEDIR and GAL_IMAGESDIR also here for
e-win32-reloc.c. Include e-win32-reloc.c on Win32.
* gal/util/e-iconv.c (e_iconv_init): Use g_win32_getlocale() on
Windows.
* gal/util/e-util.c
* gal/util/e-xml-utils.c: Use g_mkstemp() instead of non-portable
mkstemp(). Use GLib pathname manipulation functions. Use gstdio
wrappers.
* gal/util/e-util-private.h: New file. Contains just Win32 bits
for now that redefine the directory names from the Makefile as
functions calls.
* gal/util/e-win32-reloc.c: New file. Contains a minimal DllMain()
and functions to support freely chosen installation location on
Windows.
* gal/util/e-xml-utils.c: No fsync() in the Microsoft C library.
* gal/windgets/Makefile.am: Add -I$(top_srcdir)/gal for
consistency with the sibling Makefile.am files.
* gal/widgets/e-canvas.c: Instead of the Xlib AlreadyGrabbed, use
GDK_GRAB_ALREADY_GRABBED.
svn path=/trunk/; revision=29249
2005-01-21 Rodney Dawes <dobey@novell.com>
* gal/e-text/e-text.c (_do_tooltip): Don't pass in the "fill_color"
property for creating the canvas item for the tooltip
* gal/widgets/e-reflow.c (set_empty): Don't pass in the "fill_color"
property for creating the EText canvas item
Fixes#9413
svn path=/trunk/; revision=28501
2004-08-29 Suresh Chandrasekharan <suresh.chandrasekharan@sun.com>
Bugzilla #63731
* gal/e-text/e-text.c (insert_preedit_text): For multilple ETexts
sharing the same GnomeCanvas im_context, prevent updating all childern
in case preedit for one changed.
(e_text_event): Don't disconnect the signal to a EText if it is
out of focus and still having preedit. Save it and disconnect it when
another EText comes into focus.
svn path=/trunk/; revision=27085
2004-08-25 Suresh Chandrasekharan <suresh.chandrasekharan@sun.com>
Bugzilla #63731
* gal/e-text/e-text.h: Remove unneeded
text->im_context_signals_registered.
* gal/e-text/e-text.c (e_text_init): Removed
text->im_context_signals_registered
(e_text_event): Remove text->im_context
signals handler connect/disconnect from here.
(e_text_set_property): Added them here, now they will be invoked
only @ text->im_context creation time, or re-set or at e_text_dispose.
Also focus_out events does not affect the signals as they used to.
svn path=/trunk/; revision=27024
2004-08-23 Chris Toshok <toshok@ximian.com>
[ probable fix for the remaining portion of #45931 ]
* gal/e-text/e-entry.c (e_entry_show_popup): only return early if
we're trying to pop up the view while the entry is unfocused. if
we're trying to pop it down, carry on as normal.
svn path=/trunk/; revision=27009
2004-08-04 Chris Toshok <toshok@ximian.com>
* gal/e-text/e-entry.c (e_entry_refresh_popup): nuke, unnecessary.
(e_entry_start_completion): set item_chosen to FALSE.
(added_cb): nuke, unnecessary.
(full_cb): only show the popup if the user hasn't chosen an entry.
(activate_cb): set item_chosen to TRUE.
svn path=/trunk/; revision=26832
2004-06-11 Radek Doulik <rodo@ximian.com>
* gal/e-text/e-entry.c (canvas_size_request): hardcode the border
size. it is hardcoded in e-text as well. Even using style values
in e-text will not help as style values might differ between EText
and EEntry. I think it will be best to rewrite EEntry for evo 2.1
so that it derives from GtkEntry and only adds the auto completion
feature
Fixes part of #42864
svn path=/trunk/; revision=26309
2004-04-01 Chris Toshok <toshok@ximian.com>
[ fixes bug #51897 ]
* gal/e-text/e-text.c (insert_preedit_text): only reset the layout
attrs if there is some preedit text to insert. also, try getting
text->layout's attributes before creating a new list. this will
keep us from overwriting existing attributes and wiping out the
underlining for objects.
svn path=/trunk/; revision=25294
2004-02-03 Chris Toshok <toshok@ximian.com>
* gal/e-text/e-text.c (e_text_command): it's possible to get to
this function without the EText ever being realized. Since we
create the layout in realize(), let's just create it here too.
Fixes crash bug 46165 (aka "The Bug with a million dups").
svn path=/trunk/; revision=24579
2004-01-27 Rodney Dawes <dobey@ximian.com>
* gal/e-text/e-text.c (popup_targets_received): Use button->time for
the mouse click event, so that the popup stays up on button release
Fixes#47548
svn path=/trunk/; revision=24483
2004-01-06 JP Rosevear <jpr@ximian.com>
* gal/e-text/e-text.c (popup_targets_received): free event
(e_text_do_popup): copy the event so we have good data
Fixes#51956
svn path=/trunk/; revision=24071
2003-10-14 Suresh Chandrasekharan <suresh.chandrasekharan@sun.com>
* Support for preedit in e-text widgets.
* gal/gal/e-text/e-text.c: Added e_text_preedit_changed_cb and
insert_preedit_text.
* Modified the following functions.
(e_text_draw) Calls insert_preedit_text also cursor pos @ the end of
text->selection_start + text->preedit_len
(e_text_event) Added hooks for preedit_cb
(e_text_init) Inits text->preedit_len
(e_text_retrieve_surrounding_cb) Removed printf
(e_text_delete_surrounding_cb) Correct params for
gtk_editable_delete_text to make it work.
* gal/gal/e-text/e-text.h: Added preedit_len in struct _EText
2003-09-25 Suresh Chandrasekharan <suresh.chandrasekharan@sun.com>
* Fix for "44222 task summary entry widget not i18ned". The following
files are changed.
* gal/gal/e-table/e-cell-text.c: Lots of changes for i18n
selection/input support. Added these functions for input method support.
(e_cell_text_preedit_changed_cb)
(e_cell_text_commit_cb)
(e_cell_text_retrieve_surrounding_cb)
(e_cell_text_delete_surrounding_cb)
(layout_with_preedit) This function inserts the preedit string
with the right attribs to the layout text.
(build_attr_list) Creates the PangoAttrList with bold/stikeout/underline
as applicable for the current ECellText.
The following functions are modified.
(ect_stop_editing): disconnect signal handlers when editing stops
(ect_draw): Changes for including the preedit only to the currently
selected row/col. Also display the cursor at the end of preedit text.
(ect_event): Connects the IM callbacks to the key press event.
Disconnect when not in editing mode. Also a special flag to see
when Enter key pressed in preedit mode, the text is committed only
not a new row is created. This woks in conjunction with the changes
made in the eti_event in e-table-item.c file and e-cell.h.
(ect_height): Changes due to parameters changing for generate_layout
(ect_enter_edit): Initialization of im_context for a cell text and
assoociated flags.
(ect_max_width): Changes due to parameters changing for
generate_layout.
(ect_max_width_by_row): Changes due to parameters changing for
generate_layout.
(ect_show_tooltip): Changes due to parameters changing for
generate_layout.
(e_cell_text_construct): check whether paramters are NULL.
(get_position_from_xy): Changes due to parameters changing for
generate_layout.
(_insert): Set the selection_start as the minimum of strlen(edit->text)
and selection_start. Used to correct the preedit_string length
which may have added to the selection_start.
(e_cell_text_view_command): When inserting, if in the preedit mode
do not delete the selection.
(_selection_get): Set utf8 data instead of string data.
(_selection_received): Take in UTF8_ATOM inaddition to
GDK_SELECTION_TYPE_STRING.
(e_cell_text_view_get_selection): Make utf8 data when acting as a
selection source.
* gal/e-table/e-cell-text.h : Included <gtk/gtkmenu.h>
* gal/e-table/e-cell.h: Added enum E_CELL_PREEDIT to ECellFlags
* gal/e-table/e-table-item.c: (eti_event) Changes for not committing
the edited text as a seperate row in preedit mode.
* gal/e-table/e-table.c: (table_canvas_focus_event_cb) To have
proper im_context focus for the ecanvas holding the e-table.
svn path=/trunk/; revision=22882
2003-09-08 Tim Wo <tim.wo@sun.com>
* gal/a11y/e-text/gal-a11y-e-text-factory.h: GalA11yETextFactory
should inherit from AtkObjectFactory not AtkObject. (#47097).
* gal/a11y/e-text/gal-a11y-e-text.c (et_class_init): Set value
for "component_parent_iface". (#47097)
* gal/e-text/e-text.c (e_text_class_init): Added registration
code for GalA11yETextFactory. (#47097)
svn path=/trunk/; revision=22551
2003-08-10 Maxx Cao <maxx.cao@sun.com>
* gal/e-text/e-text.c (e_text_event): filter S-F10 key binding, and
show popup menu.
(popup_menu_placement_cb): function added to adjust popup menu position.+ (popup_targets_received): show popup menu in different ways, according
to whether it's invoked by mouse click or key binding.
svn path=/trunk/; revision=22204
2003-05-13 Chris Toshok <toshok@ximian.com>
[ fixes several utf8/pango related problems, including bugs
#41288, #42596, #42604 ]
* configure.in (GAL_CURRENT): bump to 3, per mkestner.
(GAL_REVISION): drop to 0, per mkestner.
* gal/e-text/e-text.c (reset_layout_attrs): we need to convert the
start/end bounds of the object to byte indices for the attribute.
(reset_layout): in the layout == NULL case don't create the layout
then immediately set it again with the same text. also, we need
to convert selection_start to a byte index before calling
pango_layout_get_cursor_pos.
(e_text_draw): remove some #ifdef 0'd code, move the calculation
of our initial clip_rect below the xpos/ypos assignments so we
don't duplicate the expression. Fix the selection drawing in the
multiline case so that it actually works, instead of assuming that
all ETexts only have 1 line *boggle*.
(get_position_from_xy): this needs to return a utf8 offset.
(e_text_copy_clipboard): convert sel_start/sel_end to byte indices
before copying.
(primary_get_cb): same.
(paste_received): validate the input here, and drop the length
parameter from e_text_insert.
(next_word): convert from an utf8 offset on entry to this
function, and return a utf8 offset when we're done. also, remove
the call the g_unichar_validate. we validate at all points where
text is inserted.
(find_offset_into_line): new function used in the backward/forward
line code. find the utf8 offset into a line (the number of utf8
characters from a prior \n or beginning of the string.)
(_get_position): in general there are lots of changes here because
text->selection_start/text->selection_end are utf8 offsets, not
byte offsets. fix E_TEP_START_OF_LINE so that hitting Ctrl-a when
you're at the beginning of a line doesn't take you to the
beginning of the previous line. fix E_TEP_END_OF_LINE in an
analogous fashion. for E_TEP_FORWARD_CHARACTER we just increment
by 1. for E_TEP_BACKWARD_CHARACTER we just decrement by 1. for
E_TEP_BACKWARD_WORD we drop the g_unichar_validate call and
simplify things a bit. reimplement
E_TEP_FORWARD_LINE/E_TEP_BACKWARD_LINE so they find the current
offset into the line, then scan forward/backward for the next/prev
line, and put us at the right offset on that line. fix
E_TEP_SELECT_WORD so double clicking in the space between words
doesn't select both words - if you double click on the trailing
edge of the space, it selects the next word. leading edge selects
the previous one. for E_TEP_SELECT_ALL use g_utf8_strlen.
(e_text_insert): everything that calls this passes a \0 terminated
string, so we assume it's \0 terminated (the old code did as well,
with calls to strlen) and drop the length parameter. also make
sure this is all utf8 happy.
(capitalize): use g_utf8_offset_to_pointer instead of just adding
text->text and start/end, and remove the validate call. also fix
the call to e_text_model_delete and use e_text_model_insert_length
instead of e_text_model_insert.
(e_text_command): for E_TEP_INSERT, validate the input. for
E_TEP_CAPS just use MAX instead of the neat little hack. also,
fix the scrolling so that it scrolls properly in both X and Y
directions (there are still some hiccups but it's much much better
than previously).
(e_text_commit_cb): validate the input here.
* gal/e-text/e-text-model.c (struct _ETextModelPrivate): just use
a GString here and get rid of MAX_LENGTH.
(e_text_model_dispose): free GString.
(e_text_model_real_validate_position): clean this up a bit.
(e_text_model_real_get_text): return the contents of the GString.
(e_text_model_real_get_text_length): use g_utf8_strlen here.
(e_text_model_real_set_text): convert to GString
(e_text_model_real_insert): just call e_text_model_insert_length
here instead of duplicating the function.
(e_text_model_real_insert_length): convert to utf8/gstring.
i.e. convert @position and @length to a bytes and use
g_string_insert_len.
(e_text_model_real_delete): same, with g_string_erase.
(e_text_model_get_text_length): use g_utf8_strlen
(e_text_model_strdup_nth_object): convert the length of the object
to bytes before copying.
(e_text_model_get_nth_object_bounds): calculate start/end properly
for u
svn path=/trunk/; revision=21163
2003-05-01 Mike Kestner <mkestner@ximian.com>
* gal/e-text/e-completion-callbacks.c (e_completion_callbacks_new):
return the instantiated object. [bug #42156]
2003-05-01 Mike Kestner <mkestner@ximian.com>
* e-cell-combo.c (e_cell_combo_selection_changed): new
(e_cell_combo_init): connect to selection_changed on popup_list
(e_cell_combo_do_popup): block selection_changed while popping up
[bug #40996]
svn path=/trunk/; revision=21042
2003-04-03 Chris Toshok <toshok@ximian.com>
* gal/e-text/e-entry.c (e_entry_init): set handle_popup to TRUE on
the EText.
* gal/e-text/e-text.c (e_text_set_property): add setter for
handle_popup.
(e_text_get_property): add getter for handle_popup.
(e_text_event): only do our special popup handling if handle_popup
is true. otherwise, pass the event along.
(e_text_class_init): install the handle_popup property.
(e_text_init): init handle_popup to FALSE, so we get default
behavior in most cases.
* gal/e-text/e-text.h: add "handle_popup" field, so the user of an
EText can decide whether to handle popups themselves.
svn path=/trunk/; revision=20664
2003-04-03 Chris Toshok <toshok@ximian.com>
* gal/e-text/e-text.c (e_text_commit_cb): emit a keypress signal.
yes, i know this might not correspond to a single keypress, but..
svn path=/trunk/; revision=20659
2003-04-02 Chris Toshok <toshok@ximian.com>
* gal/e-text/e-text.c (e_text_copy_clipboard): ifdef
gtk_widget_get_clipboard since we need to build against gtk 2.0.
(e_text_update_primary_selection): same.
(e_text_paste): same.
(e_text_do_popup): same.
svn path=/trunk/; revision=20657
2003-04-02 Chris Toshok <toshok@ximian.com>
* gal/e-text/e-text.c (e_text_dispose): just disconnect based on
DATA, so we only need 1 call.
(e_text_event): same.
svn path=/trunk/; revision=20655
2003-04-02 Chris Toshok <toshok@ximian.com>
[ either fixes#39702 or comes damn, damn close. also, fixes EText
to not suck *nearly* as much. ]
* gal/util/e-marshal.list: add NONE:POINTER,INT,OBJECT.
* gal/e-text/e-entry.h: (struct _EEntryClass): popup ->
populate_popup.
* gal/e-text/e-entry.c (proxy_changed): rename, the old name was
too damn long.
(proxy_activate): same.
(proxy_populate_popup): same, and change from popup to
populate_popup.
(e_entry_init): track change to cb names, and populate_popup.
also, pass the ECanvas's im_context to the EText.
(e_entry_class_init): POPUP -> POPULATE_POPUP.
* gal/e-text/e-text.h (struct _EText): remove the old selection
stuff, and add im_context/reset_im_context fields.
(struct _ETextClass): popup -> populate_popup.
* gal/e-text/e-text.c (e_text_dispose): remove all the
GtkInvisible based selection stuff, and disconnect from/unref the
im_context.
(e_text_set_property): add "im_context" handling.
(e_text_get_property): same.
(e_text_event): connect/disconnect from the IM context's signals
in the FOCUS_CHANGE handler. in the KEY_PRESS/RELEASE handler,
use gtk_im_context_filter_keypress if we have an im_context.
also, use e_text_do_popup now instead of just emitting the "popup"
signal.
(e_text_copy_clipboard): new function.
(e_text_delete_selection): new function.
(e_text_cut_clipboard): new function.
(e_text_paste_clipboard): new function.
(e_text_select_all): new function.
(primary_get_cb): new function, handle requests for the primary
selection when we're the owner.
(primary_clear_cb): new function, unfinished.
(e_text_update_primary_selection): new function.
(paste_received): new function, insert pasted text.
(e_text_paste): new function,
(popup_menu_detach): new function, not needed really.
(popup_targets_received): new function, pop up the popup once we
have the selection information necessary to sensitize the c/c/p
buttons.
(e_text_do_popup): new function, request the selection.
(e_text_reset_im_context): new function.
(e_text_command): for E_TEP_SELECT, call
e_text_update_primary_selection. for E_TEP_DELETE/INSERT,
_delete_selection -> e_text_delete_selection. for E_TEP_COPY,
call e_text_copy_clipboard. for E_TEP_PASTE/E_TEP_GET_SELECTION
call e_text_paste.
(e_text_class_init): change the "popup" signal to
"populate_popup". Also, add the "im_context" property.
(e_text_commit_cb): new function. IM context callback.
(e_text_retrieve_surrounding_cb): new function. IM context
callback.
(e_text_delete_surrounding_cb): new function. IM context
callback. unfinished.
svn path=/trunk/; revision=20653
