2005-09-09 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkdisplay-win32.c (gdk_display_get_name): Cache the
display name. There is only one GdkDisplay on Win32, and
constructing the display name isn't entirely trivial, so cacheing
is probably worth it. For instance GIMP calls this function a lot.
(gdk_display_open): Call gdk_display_get_name() to prime the
cached name.
(gdk_display_get_n_screens, gdk_display_get_screen,
gdk_display_get_default_screen): Verify parameter correctness like
the X11 backend does.
* gdk/win32/gdkscreen-win32.c (gdk_screen_make_display_name):
Return a freshly allocated string, as the API specifies. Fixes a
heap corruption problem that caused random errors and crashes in
GIMP, for instance.
2005-09-02 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkevents-win32.c (gdk_event_translate): Keep track of
cursor position also in root window coordinates. Prune out
superfluous WM_MOUSEMOVE messages even earlier, based on root window
coordinates. Windows sends WM_MOUSEMOVE messages after a new
window has ben mapped below the cursor even if the mouse doesn't
move. We used to generate GDK_MOTION_NOTIFY in these cases. This
confused at least gtk_menu_motion_notify(). (#314995)
* gtk/gtkintl.h: No need to include config.h here. It caused
warnings about GTK_LOCALEDIR being redefined on Win32 when
compiling files where gtkintl.h is included after gtkprivate.h
(which #undefines and re-#defines GTK_LOCALEDIR on Win32).
* gtk/gtkplug.c: Include config.h.
2005-08-09 Owen Taylor <otaylor@redhat.com>
* configure.in: Strip out all Xft, FreeType, and pangoxft checking.
Rewrite X checks to use pkg-config as much as possible.
* gdk/win32/gdkfont-win32.c (gdk_font_from_description_for_display): Make
this return Arial always to avoid using PangoWin32FontMap. (X11 backend
has always been returned "fixed" for a long time)
* gdk/linux-fb/gdkdrawable-fb2.c: Remove draw_glyphs() implementations,
fall through to the default implementation in terms of Cairo.
* gdk/linux-fb/gdkdrawable-fb2.c (gdk_fb_draw_text): Use gdk_draw_glyphs()
on the wrapper rather than gdk_fb_draw_glyphs()
2005-07-29 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkevents-win32.c: Remove ifdeffed out code relating
to the gdk-ping message. Use the global _gdk_display instead of
calling gdk_display_get_default() which would return _gdk_display
anyway.
(append_event, apply_filters, gdk_event_translate): Drop any
GdkDisplay parameter as we only have one display anyway. Use
_gdk_display where needed.
(gdk_event_apply_filters): Delete, move the code into its only
caller, apply_filters().
(generate_button_event): Factor out code from two places in
gdk_event_translate().
(gdk_event_translate): Call generate_button_event() in place of
inline code.
2005-07-29 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkevents-win32.c (generate_grab_broken_event): New
static function to generate and append the GDK_GRAB_BROKEN events.
(gdk_pointer_grab, gdk_keyboard_grab): Generate grab broken events
when overriding a grab inside the application, like in the X11
backend. Final bits of the fix for #107320, hopefully.
(print_event): Handle also GDK_SETTING, GDK_OWNER_CHANGE and
GDK_GRAB_BROKEN events.
(gdk_event_translate): Call generate_grab_broken_event() in place
of inline code.
2005-07-29 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkdrawable-win32.c (blit_inside_drawable): Rename
from blit_inside_window(), as it now does blitting inside a
bitmap, too. No code change, still just call BitBlt().
(_gdk_win32_blit): Check for source equalling destination
first. (#169508, #131977)
Do away with the superfluous local draw_impl variable, the
parameter to this function is already a GdkDrawableImplWin32*, no
need to copy and cast it.
2005-07-28 Robert Ögren <gtk@roboros.com>
Avoid spurious core pointer events when the tablet pen is lifted.
(#167000)
* gdk/win32/gdkinput-win32.c (set_ignore_core): New static function,
handles delayed unsetting of _gdk_input_ignore_core.
(_gdk_input_other_event): Call set_ignore_core instead of setting
_gdk_input_ignore_core directly.
2005-07-21 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkwindow-win32.c (gdk_window_set_title): Use
wide-char API when available. (#311079, Peter Zelezny)
2005-07-18 Tor Lillqvist <tml@novell.com>
* configure.in (GDK_EXTRA_LIBS): [Win32] Bypass libtool, use
-Wl,-luuid. This avoids a libtool warning as libuuid is static.
* gdk/win32/gdkgc-win32.c (gdk_win32_hdc_get): Be sure to remove
any possible leftover clipping region in the DC if we don't want
any clipping. Thanks to Robert Ögren. (#309823)
2005-07-13 Robert gren <gtk@roboros.com>
Fix handling of Aiptek and Aiptek-like graphical tablets such as Trust
on Windows. (#167004, thanks to "pnohant" for testing)
Code cleanup: Remove the unused and unmaintained code for using a
non-system tablet context (USE_SYSCONTEXT ifdef:s), suggested
by Tor Lillqvist.
* gdk/win32/gdkinput-win32.c (_gdk_input_wintab_init_check): Handle
tablet drivers that don't support WTI_DDCTXS/WTI_DSCTXS gracefully.
Sligthly reorganize and simplify the code to support this.
(_gdk_input_wintab_init_check, _gdk_input_other_event): Remove
USE_SYSCONTEXT ifdef:s and the code for the case it was not defined.
(gdk_input_window_find_within): Removed.
2005-07-09 Tor Lillqvist <tml@novell.com>
* configure.in: Look for windres on Win32.
* gdk-pixbuf/Makefile.am
* gdk/win32/rc/Makefile.am
* gdk/Makefile.am
* gtk/Makefile.am: Don't use the scripts in build/win32 to compile
the rc files into resource object files. (This means we lose the
build number increment magic, but I doubt it was that useful
anyway.) Instead use windres directly. To pass a normal .o file
produced by windres through libtool, which would want a .lo file,
pass it directly to the linker using a -Wl option.
* gdk-pixbuf/gdk_pixbuf.rc.in
* gdk/win32/rc/gdk.rc.in
* gtk/gtk-win32.rc.in: Replace BUILDNUMBER with 0.
2005-07-06 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkcursor-win32.c
(gdk_win32_icon_to_pixbuf_libgtk_only): Don't create the GdkPixbuf
until we know that we have something to put in it.
2005-07-06 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkcursor-win32.c: Add comment about the current named
cursor implementation, and what it maybe really should do.
(gdk_win32_icon_to_pixbuf_libgtk_only): New function, code moved
here from gtk/gtkfilesystemwin32.c:extract_icon().
(gdk_cursor_get_image): Use
gdk_win32_icon_to_pixbuf_libgtk_only().
* gdk/gdk.symbols
* gdk/win32/gdkwin32.h: Declare gdk_win32_icon_to_pixbuf_libgtk_only().
* gtk/gtkfilesystemwin32.c (extract_icon): Use
gdk_win32_icon_to_pixbuf_libgtk_only().
2005-07-03 Hans Breuer <hans@breuer.org>
* **/makefile.msc[.in] : updated
* gtk/gtkiconcache.c : <io.h> for open()
* gtk/gtkstyle.c : use G_PI instead of M_PI
* gdk/win32/gdkcursor-win32.c : implement gdk_cursor_new_from_name()
by mapping the lower case win32 api name to the respective cursor.
E.g. pass "wait" to get the IDC_WAIT cursor. Also allows to load
cursors from named resources in the executable.
(gdk_cursor_get_image) : just return NULL for now.
* gdk/win32/gdkgeometry-win32.c : implement gdk_window_move_region()
by delegation to ScollWindowEx(), untested.
* gdk/win32/gdkwindow-win32.c : stub for gdk_window_set_urgency_hint()
2005-06-27 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkmenushell.c (gtk_menu_shell_grab_broken): Ignore
GrabBroken events which are caused by overgrabbing inside
the application; menus rely on these for their operation.
* gdk/gdkevents.h (struct _GdkEventGrabBroken): Add a
grab_window field.
* gdk/win32/gdkevents-win32.c (gdk_event_translate): Set
grab_window to NULL when generating GrabBroken events for
WM_KILLFOCUS messages.
* gdk/x11/gdkmain-x11.c (_gdk_xgrab_check_unmap)
(_gdk_xgrab_check_destroy): Set grab_window to NULL when
generating GrabBroken events when the grab window becomes
unviewable or is destroyed.
* gdk/x11/gdkmain-x11.c (gdk_pointer_grab, gdk_keyboard_grab):
Generate GrabBroken events when overriding a grab inside
the application. In this case, set grab_window to the new
grab_window.
2005-06-25 Matthias Clasen <mclasen@redhat.com>
Add a GrabBroken event to GDK, and a grab-broken-event
signal to GtkWidget. (#107320, Simon Cooke, initial patch
by John Ehresman)
* gdk/gdkevents.h: Add a GDK_GRAB_BROKEN event type,
define a GdkEventGrabBroken event struct.
* gdk/win32/gdkevents-win32.c (gdk_event_translate):
Generate GrabBroken events in response to WM_KILLFOCUS.
* gdk/x11/gdkmain-x11.c: Generate GrabBroken events
when a grab is broken by the window becoming unviewable,
or by another grab from the same client.
* gtk/gtkwidget.h (GtkWidgetClass): Add grab_broken_event.
* gtk/gtkwidget.c (gtk_widget_event_internal): Translate
GrabBroken events into grab_broken_event signals.
* gtk/gtkmain.c (gtk_main_do_event): Propagate GrabBroken
events.
* gtk/gtkmenushell.c (gtk_menu_shell_grab_broken): Deactivate
the menu when the grab is broken.
* gtk/gtkcolorsel.c (gtk_color_selection_grab_broken): Stop
the color picker if the grab is broken.
* gtk/gtkpaned.c (gtk_paned_grab_broken): Stop the drag if
the grab is broken.
2005-06-23 Tor Lillqvist <tml@novell.com>
Improve and simplify line segment rendering on Win32, especially
the implementation of GDK_CAP_NOT_LAST, and dashed lines. Fixes
bug #306396.
* gdk/win32/gdkprivate-win32.h (GdkGCWin32): Save the GdkGC's
line_style, cap_style and join_style as such in the
GdkGCWin32. Don't need to keep the pen_double_dash flag, we can
check the line_style.
* gdk/win32/gdkgc-win32.c (fixup_pen): New internal function. Sets
up the GDI pen type, style, end cap and join attributes to use
based on the pen width, GDK line style, end cap style, and join
style.
For a narrow (zero-width) GDK pen with the GDK_CAP_NOT_LAST end
cap style, which typically are used for XOR drawing where it is
essential that the last pixel is not drawn, use a GDI cosmetic
pen. Only for a cosmetic pen does GDI not draw the last pixel. I
deduced this by experimetation, the documentation is rather vague.
For other GDK pens use a geometric GDI pen. If the width is 0 or 1
and the GDK end cap style is GDK_CAP_BUTT, and the line style is
GDK_LINE_SOLID, use PS_ENDCAP_ROUND. This ensures that also
single-pixel length lines are drawn. (For sngle-pixel width lines
roundness as such is of course irrelevant.) For dashed lines, use
PS_ENDCAP_FLAT.
For wide lines use PS_ENDCAP_FLAT, _ROUND or _SQUARE,
respectively, for GDK_CAP_BUTT, GDK_CAP_ROUND and GDK_CAP_PROJECTING.
For one pixel on-off dashed lines, use PS_ALTERNATE, it seems to
work better than PS_USERSTYLE. For other dashed lines, use
PS_USERSTYLE and the dashes as set by the user (or the default
four-pixel on-off style).
(gdk_win32_gc_values_to_win32values, gdk_win32_gc_set_dashes):
Call fixup_pen() to do the pen settings after modifying some of
the GDK GC attributes that affect pens.
* gdk/win32/gdkdrawable-win32.c (render_line_horizontal,
render_line_vertical, draw_segments): Check GdkGCWin32::line_style
instead of the the removed pen_double_dash member. Don't use
PATCOPY unconditionally in the PatBlt() call, use a raster ope
code that depends on the GC function in use.
(draw_rectangle, draw_segments, draw_lines): Be more careful in
deciding when to do the manual dash rendering.
(draw_segments): Don't do any manual "last point" drawing at
all. The above changes takes care of narrow line segments being
drawn correctly in most cases, at least on NT-based Windows.
2005-06-17 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkdnd-win32.c (gdk_dropfiles_filter): Set the actions
and suggested_action fields in the GdkDragContext to
GDK_ACTION_COPY. Otherwise apps that check the suggested_action
field, like eog, won't accept dropped files.
2005-06-05 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkscreen-win32.c
(_gdk_windowing_substitute_screen_number): Return NULL unless
screen number is zero. We have only one screen on Win32.
(gdk_screen_make_display_name): Call gdk_display_get_name() and
return that.
2005-06-04 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkcursor-win32.c
* gdk/win32/gdkwindow-win32.c
* gdk/win32/gdkprivate-win32.h: Support full-colour cursors.
Support cursors with alpha on XP. Use code in common with the
support for alpha icons that already was present. (#306101, Tim
Evans)
2005-05-26 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkdrawable-win32.c (_gdk_win32_blit): If blitting
from the root window, take the multi-monitor offset into
account. (#305511)
2005-05-24 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkproperty-win32.c (gdk_screen_get_setting): Handle
gtk-alternative-button-order (setting it to TRUE).
2005-05-23 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkkeys-win32.c (handle_dead): If the keysym isn't one
of the special cases this function takes care of, us it as
such. This takes care of for instance the Bengali Virama, see bug
#165723.
2005-05-18 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkevents-win32.c
* gdk/win32/gdkkeys-win32.c
* gdk/win32/gdkprivate-win32.h: Check the KF_EXTENDED bit in
lParam of WM_KEY* messages to distinguish between left and right
Control and Alt keys. Unfortunately, the right Shift key doesnt
set KF_EXTENDED, so to distinguish between left and right Shift
keys, check the scan code. (#304584)
2005-05-10 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkproperty-win32.c (gdk_screen_get_setting): Check
that GDK_IS_SCREEN(screen) (like the X11 backend does), not screen
== gdk_screen_get_default(), as that might return NULL when this
function is called.
2005-05-09 Owen Taylor <otaylor@redhat.com>
* gdk/gdkrgb.c (gdk_rgb_convert_0888_br, gdk_rgb_convert_8880_br):
Fill in unused bits so they can be used for the depth-32 target case.
Rewrite so that that gives a marginal speedup rather than a
marginal slowdown. (on x86)
* gdk/gdkscreen.h gdk/x11/gdkscreen-x11.[ch] gdk/x11/gdkvisual-x11.c:
Add gdk_screen_get_rgba_colormap/visual to get a visual for
windows with an alpha channel, if one exists.
* gdk/win32/gdkscreen-win32.c gdk/linux-fb/gdkscreen-fb.c:
Stub out gdk_screen_get_rgba_colormap/visual.
* gdk/x11/gdkcolor-x11.c (gdk_colormap_alloc_colors): computation of
"unused" wasn't right for depth == 32, since it depended on
shifting by 32.
* gdk/gdkrgb.c: Fill in alpha bits with 1s. (Based on patch from
Keith Packard,
http://mail.gnome.org/archives/gtk-devel-list/2004-June/msg00080.html)
* gdk/x11/gdkdrawable-x11.c (gdk_x11_drawable_get_picture):
Implement again, without using Xft.
* tests/testgtk.c: Add a test for windows with an alpha channel.
2005-04-28 Owen Taylor <otaylor@redhat.com>
* gtk/gtkwidget.c: Add a draw-border style property to allow
themes to draw outside the widget's allocation.
* gdk/gdkwindow.c gtk/gtkstyle.c: Remove some save/restore pairs
that were working around the clip-leakage bug in Cairo.
* gtk/gtkstyle.c: Use cairo_fill_preserve() rathe than
save/fill/restore.
* gdk/gdkgc.c gdk/gdkinternals.h: Add _gdk_gc_update_context()
That updates a Cairo context to match a GC.
* gdk/gdkdraw.c: Use _gdk_gc_update_context() to add support
for tiles/stipples/clipping to gdk_draw_glyphs(),
gdk_draw_trapezoids().
* gdk/gdkpango.c: Use _gdk_gc_update_context() instead of internal
implementation of stipples. Use one cairo_t across the entire
drawing operation. Replace cairo_matrix_create() with
stack-allocated matrices.
* gdk/gdkgc.c gdk/gdkinternals.h gdk/x11/gdkgc-x11.c
gdk/win32/gdkgc-win32.c: Save various aspects of the
GC state (fill, tile, stipple, foreground, background, clip region)
in instance-private-data for future use. Add getters.
Get rid of _gdk_windowing_gc_get_foreground() function implemented
by the backends.
* gdk/gdkgc.c gdk/gdkinternals.h gdk/x11/gdkgc-x11.c
gdk/win32/gdkgc-win32.c gdk/linux-fb/gdkgc-fb.c: Add
_gdk_gc_init() to do initial setup of the GC from values;
fixes some problems from drawable redirection.
* gdk/gdkgc.c gdk/gdkinternals.h gdk/x11/gdkgc-x11.c
gdk/win32/gdkgc-win32.c gdk/linux-fb/gdkgc-fb.c: Move
gdk_gc_copy() and gdk_gc_set_clip_{region,rectangle}() into
the generic code, add _gdk_windowing_gc_copy(),
_gdk_windowing_gc_set_clip_region() to do backend specific
stuff.
* gdk/x11/{gdkprivate-x11.h,gdkgc-x11.c.c,gdkdrawable-x11.c}
gdk/win32/{gdkprivate-win32.h,gdkgc-x11.c.c,gdkdrawable-x11.c}
gdk/linux-fb/{gdkprivate-fb.h,gdkgc-fb.c.c,gdkdrawable-fb.c}:
Don't duplicate state that now is stored by the generic code.
* gdk/gdk.symbols Update
2005-04-19 Ivan, Wong Yat Cheung <email@ivanwong.info>
* gdk/win32/gdkfont-win32.c (gdk_font_load_internal): Match
character height instead of cell height. Fix#301228.
2005-04-05 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkvisual-win32.c (_gdk_visual_init): Handle 16 colour
display mode. For some reason, in this mode GetDeviceCaps(BITSPIXEL)
returns 1 (but GetDeviceCaps(NUMCOLORS) does return 16). (#143415)
2005-04-04 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkmain.c (_gdk_win32_cf_to_string): New debugging
function, to log a clipboard format name symbolically.
(_gdk_win32_data_to_string): Also new, to log random data bytes.
Implement delayed rendering on Win32, specifically for transfering
images through the clipboard from GTK+ apps to other
apps (#168173, implementation by Ivan Wong):
* gdk/win32/gdkevents-win32.c (gdk_event_translate):
Handle WM_RENDERFORMAT.
* gdk/win32/gdkprivate-win32.h
* gdk/win32/gdkglobals-win32.c: Add _format_atom_table,
_delayed_rendering_data and _image_bmp.
* gdk/win32/gdkmain-win32.c: Initialize _image_bmp.
* gdk/win32/gdkproperty-win32.c (gdk_property_change):
Accept formats other than GDK_TARGET_STRING or _utf8_string, and
assume they are handled through delayed rendering.
* gdk/win32/gdkselection-win32.c (gdk_selection_convert):
Return all available formats (including those registered by GTK+
apps) on request_targets.
(gdk_selection_property_get): We should append a zero byte like
X11 does.
(gdk_win32_selection_add_targets): New function, for
gtkselection's use. Win32 requires that the clipboard owner
registers all valid formats even if the owner wants delayed
rendering.
(_gdk_win32_selection_convert_to_dib): New function. Convert
images to DIB using gdk-pixbuf.
* gdk/win32/gdkwin32.h: Declare gdk_win32_selection_add_targets().
* gtk/gtkselection.c (gtk_selection_add_target,
gtk_selection_add_targets): Call gdk_win32_selection_add_targets()
to register target formats.
* gdk/gdk.symbols: Add gdk_win32_selection_add_targets().
2005-04-03 Hans Breuer <hans@breuer.org>
[merged from gtk-2-6 branch]
* gdk/win32/gdkdrawable-win32.c : let dash_offset shift the start of
the line pattern not the start of the line. Fixes bug #171641.
* gtk/makefile.msc.in : follow .symbols changes
* gdk/win32/gdkwindow-win32.c : declare and resolve GetAncestor()
dynamically. (It is not available in _WIN_VER <= 0x0400)
* gdk/win32/makefile.msc : removed gdkpango-win32.obj
* gtk/gtkhsv.c gtk/gtkstyle.c : use G_PI instead of M_PI
[also applied to gtk-2-6 branch]
* gdk/makefile.msc gdk-pixbuf/makefile.msc : handle gdk*alias.def
* gdk/makefile.msc.in : add gtkmnemonichash.obj
* test/testgtk.c(set_parent_signal) : use g_message instead of
g_print to keep the 'testgtk --bench=all' output clean
2005-03-30 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix event
filter handling. If an event filter (global, client message
filter, of window-specific) returns GDK_FILTER_CONTINUE,
continue as if nothing happened. If it returns
GDK_FILTER_REMOVE or GDK_FILTER_TRANSLATE, return TRUE from
gdk_event_translate() which means that DefWindowProc() will
not be called.
(gdk_event_translate): Fix client message handling. Append a
GDK_CLIENT_EVENT unless there is a filter that matches and returns
something other than GDK_FILTER_CONTINUE. (#135552)
2005-03-30 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkevents-win32.c (build_pointer_event_state): The
state field should represent the state before the event, like on
X11. (#169753)
2005-03-20 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkdisplay-win32.c (gdk_display_get_name): Return the
Terminal Services session number, window station name (always
"WinSta0" in interactive processes), and desktop name (typically
"Default"), concatenated with backslash separators.
(gdk_display_open): Accept only NULL or the string
gdk_display_get_name() returns as display name.
2005-03-18 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkevents-win32.c (gdk_event_translate): On
WM_MOUSEMOVE, don't check if this process owns the active
window. This makes cross-application widget embedding work better.
On WM_MOVE, don't bother checking for window visibility.
* gdk/win32/gdkim-win32.c: Remove bogus empty doc comment. Remove
unused variables. Add some casts to silence gcc.
2005-02-24 Owen Taylor <otaylor@redhat.com>
* gdk/gdkwindow.c: Use cairo_set_device_offset().
* gdk/win32/gdkdrawable-win32.[ch] gdk/win32/gdkwindow-win32.c
gdk/win32/gdkpixmap-win32.c:
Add_gdk_win32_drawable_acquire/release_dc() to get a DC for the
drawable. Add _gdk_drawable_win32_finish() to clean up resources
when a drawable is destroyed.
* gdk/win32/gdkgc-win32.c gdk/win32/gdkdrawable-win32.c
(blit_from_pixmap) gdk/win32/gdkprivate-win32.h : Use
acquire/release_dc when getting a DC to use with a GC or for
blitting from a pixmap.
* gdk/win32/gdkdrawable-win32.[ch]: Implement ref_cairo_surface()
* gdk/win32/gdkpango-win32.c gdk/win32/gdkdrawable-win32.c Makefile.am:
Remove gdk_screen_get_pango_context(), draw_glyph[_transformed]
implementations.
* gdk/win32/gdkdrawable-win32.c: Remove
gdk_draw_rectangle_alpha_libgtk_only()
