2008-07-02 Cody Russell <bratsche@gnome.org>
Bug 541305 – [Win32] Scrolling was broken after GdkWindow refactoring
* gdk/win32/gdkwindow-win32.c: Reverted some logic so that scrolling
works again.
* gdk/win32/gdkgeometry-win32.c: Removed some more unnecessary checks.
* gdk/win32/gdkkeys-win32.c: Removed unused variable to fix compile-time
warnings.
svn path=/trunk/; revision=20737
2008-06-30 Cody Russell <bratsche@gnome.org>
* Practically everything changed.
Change all references of GIMP Toolkit (and variations of it)
to GTK+ Toolkit, showing no mercy at all to our beloved
ancestry. (#540529)
svn path=/trunk/; revision=20709
2008-06-30 Michael Natterer <mitch@imendio.com>
Some unrelated cleanups found while reviewing
the offscreen window patch:
* gdk/gdkwindow.c: add missing Since: 2.14 to the redirection
functions, fix some function header indentation, update
documentation of redirect_to_drawable().
* gdk/x11/gdkwindow-x11.c
* gdk/x11/gdkpixmap-x11.c: fix function header
formatting/indentation.
* gtk/gtkwidget.c: use I_() on "damage_event".
svn path=/trunk/; revision=20708
2008-06-27 Emmanuele Bassi <ebassi@gnome.org>
Abstract some GdkWindow API into an interface that the backends
must implement. (based on a patch by Alex Larsson)
* gdk/Makefile.am: Add gdkwindowimpl.[ch]
* gdk/gdk.symbols: Move symbols around.
* gdk/gdkinternals.h:
* gdk/gdkwindowimpl.[ch]: Move some of the GdkWindow API we require
from the backends to a GInterface that the backends should implement
instead.
* gdk/gdkwindow.c: Provide some of the GdkWindow public API as a
wrapper call around the GdkWindowImpl interface vtable.
* gdk/x11/gdkevents-x11.c:
* gdk/x11/gdkgeometry-x11.c:
* gdk/x11/gdkprivate-x11.h:
* gdk/x11/gdkwindow-x11.c:
* gdk/x11/gdkwindow-x11.h: Update the X11 backend to implement
the GdkWindowImpl interface.
svn path=/trunk/; revision=20695
2008-03-18 10:49:20 Tim Janik <timj@imendio.com>
* Applied pixmap redirection patch by Alexander Larsson with
various updates from:
Bug 318807 – Offscreen windows and window redirection.
Updates:
* updated docs to mention "Since 2.16".
* tests/testgtk.c: fixed snapshooting pixmap leak.
convert pixmap to pixbuf after snapshooting, to compensate for different
bit depths (occurs when snapshooting ARGB visuals and displaying the
pixmap in an RGB visual).
* gdk/gdkwindow.[hc]: made GdkWindowRedirect private.
* gdk/gdkwindow.c: removed damage idle handler, there's no aparent
need for it. enqueue damage notification as GDK_DAMAGE events
for each painting redirection at the start of the event queue.
consider windows with a redirection fully visible when invalidating,
and when updating from backing store. cleaned up stale variables.
* gdk/gdkevents.c: added _gdk_event_queue_prepend().
* gtk/gtkwidget.c: fixed coordinates for !NO_WINDOW widgets in
gtk_widget_get_snapshot; this fixes garbage snap offsets for gammacurve,
tree, drawingarea, text, handlebox, etc.
clip the redirected window hierarchy to window sizes, the visible
rectangles don't need to be taken into account here.
extended snapshooting docs to recommend gdk_pixbuf_get_from_drawable()
in case pixmap visuals could mismatch.
* gdk/x11/gdkwindow-x11.c: removed _gdk_windowing_window_get_visible_rect().
Base patch:
* tests/testgtk.c: add a "Snapshot" test to demonstrate snapshooting
of possibly obscured widgets into an offscreen pixmap.
* gtk/gtkwidget.[hc]: add GtkWidget::damage-event signal, add
gtk_widget_get_snapshot() to render a widget's contents to a GdkPixmap.
* gtk/gtkmain.c: dispatch GDK_DAMAGE events.
* gdk/gdkwindow.c: moved outer gdk_window_new() and gdk_window_reparent()
implementations here, adapted them to propagate redirects to child windows.
gdk_window_end_paint(): copy repainted window contents to redirection pixmap,
clipped to visible region. queue GDK_DAMAGE event delivery.
gdk_window_redirect_to_drawable(): install window painting redirection.
gdk_window_remove_redirection(): remove previously installed redirection.
* gdk/x11/gdkwindow-x11.c: added _gdk_windowing_window_get_visible_rect(),
renamed _gdk_window_new() and _gdk_window_reparent().
* gdk/gdkwindow.h: added GdkWindowRedirect* to GdkWindowObject, export
gdk_window_redirect_to_drawable() and gdk_window_remove_redirection().
* gdk/gdkevents.h: added GDK_DAMAGE event type.
* gdk/gdkevents.c: extract time and state from GDK_DAMAGE events.
* gdk/gdkinternals.h: added internal prototypes.
svn path=/trunk/; revision=20122
2007-11-09 Kristian Rietveld <kris@imendio.com>
* gdk/gdkwindow.c (gdk_window_process_all_updates): guard for
windows with GDK_WINDOW_DESTROYED set. (Fixes#482531, reported
by Sebastien Bacher).
svn path=/trunk/; revision=18975
2007-09-12 Kristian Rietveld <kris@imendio.com>
Fixes#426246.
* gdk/gdk.symbols:
* gdk/gdkwindow.[ch]
(gdk_window_freeze_toplevel_updates_libgtk_only),
(gdk_window_thaw_toplevel_updates_libgtk_only): new functions
to freeze a toplevel window and all its descendants. To be made
public in 2.14,
(gdk_window_schedule_update): return if toplevel is frozen,
(gdk_window_process_all_updates): defer processing updates if toplevel
is frozen.
* gtk/gtkwindow.c (gtk_window_configure_event): directly size
allocate for override redirect windows, freeze toplevel and
descendants otherwise and wait until resizing is done.
svn path=/trunk/; revision=18802
2007-08-08 Behdad Esfahbod <behdad@gnome.org>
* gdk/gdkwindow.c (gdk_window_invalidate_region): Use gtk_true
instead of rolling a new one. Patch from Xan Lopez.
svn path=/trunk/; revision=18595
2007-07-20 Ryan Lortie <desrt@desrt.ca>
* gtk/gtkwidget.c (gtk_widget_is_composited): add note that the
semantics of this call, when mixed with the new
gdk_window_set_composited(), will change in the future.
* gdk/x11/gdkevents-x11.c (gdk_event_translate): only grab Damage
events that belong to us.
svn path=/trunk/; revision=18506
2006-07-17 Matthias Clasen <mclasen@redhat.com>
* gdk/gdkwindow.c (gdk_window_get_pointer): Add some more
detail to the docs. (#311399, Nikos Kouremenos)
2006-05-30 Matthias Clasen <mclasen@redhat.com>
* gdk/gdkpixmap.c:
* gdk/gdkwindow.c: Don't use G_DEFINE_TYPE, since the instance
struct name does not match the type name. (#343453, Ed Catmur)
2006-04-11 Anders Carlsson <andersca@imendio.com>
* gdk/gdkinternals.h:
* gdk/gdkwindow.c:
(_gdk_paintable_get_type):
(gdk_window_begin_paint_region):
(gdk_window_end_paint):
(gdk_window_process_updates):
(gdk_window_invalidate_maybe_recurse):
Add new GdkPaintable interface which implementation objects can
implement in order to override gdk painting functions.
2006-02-03 Federico Mena Quintero <federico@ximian.com>
Work around https://bugs.freedesktop.org/show_bug.cgi?id=4320,
which used to be our own
http://bugzilla.gnome.org/show_bug.cgi?id=314616. If one uses a
pixmap for a pattern in Cairo, and sets the pattern to
CAIRO_EXTEND_REPEAT; and if the destination surface is also a
pixmap, Cairo does a slow copy instead of using XCopyArea(). So,
we use the same code that we used in GTK+ 2.6 (pre-cairo), by
filling the double-buffer pixmap with a tiled GC and
XFillRectangle().
* gdk/gdkwindow.c (BackingRectMethod): New structure with a
cairo_t and a GdkGC field. Depending on which of these fields
gets filled in, we'll use Cairo or GDK to clear the double-buffer
pixmap when painting a window.
(setup_backing_rect_method): Fill a BackingRectMethod as
appropriate, depending on the window's configuration and our
knowledge of whether Cairo is fast or slow when doing repeating
patterns.
(gdk_window_clear_backing_rect): Call
setup_backing_rect_method(). Depending on what it returns, use
Cairo to clear the double-buffer pixmap, or plain GDK.
2005-11-10 Michael Natterer <mitch@imendio.com>
Applied patch from maemo-gtk that addresses many issues wrt
display migration and display closing (bug #85715).
* gdk/gdkdisplay.c (gdk_display_dispose): don't just set the
default display to NULL when it's closed. Instead set the most
recently opened display as new default (if one exists).
* gdk/gdkpango.c (on_renderer_display_closed): fixed signature
of this callback.
* gdk/gdkscreen.c (gdk_screen_dispose): check if the GCs still
exist before unrefing them.
* gdk/gdkwindow.c (_gdk_window_destroy_hierarchy): if the screen
is closed, allow destruction of the root window.
* gdk/x11/gdkdisplay-x11.c: moved some stuff from finalize() to
dispose(), free stuff that was leaked before.
* gdk/x11/gdkevents-x11.c (_gdk_x11_events_uninit_screen): check if
the xsettings_client still exists before destroying it.
* gdk/x11/gdkkeys-x11.c: added finalization and free the allocated
X resources.
* gdk/x11/gdkpixmap-x11.c: moved stuff from finalize() to new
dispose() implementation.
* gdk/x11/gdkscreen-x11.c: moved stuff from finalize() to
dispose() and check if it still exists before unrefing it. Set
their pointers to NULL/None *after* upchaining in dispose(),
because X11 implementations of members of the parent class still
need them for their own destruction.
* gdk/x11/gdkvisual-x11.c: removed finalize() implementation which
was g_error()ing when finalizing a visual.
* gtk/gtkclipboard.c (gtk_clipboard_finalize): don't use
get_clipboard_widget() because it would create the widget if it
doesn't exist. Use g_object_get_data() directly instead.
* gtk/gtktextdisplay.c (on_renderer_display_closed): fixed signature
of this callback.
2005-09-26 Matthias Clasen <mclasen@redhat.com>
Fix#316871, reported by Dan Winship:
* gdk/gdkwindow.h (struct _GdkWindowObject): Add a shaped flag.
* gdk/x11/gdkwindow-x11.c (gdk_window_shape_combine_mask)
(gdk_window_shape_combine_region): Set it here.
* gdk/gdkwindow.c (gdk_window_invalidate_maybe_recurse): Don't
remove the child area for shaped windows.
2005-05-11 Owen Taylor <otaylor@redhat.com>
* gtk/gtkcolorbutton.c: Use a GtkAlignment rather than a GtkDrawingArea
to draw the swatch in to avoid having an extraneous window.
* gtk/gtkcolorsel.c (color_sample_draw_sample): Actually se tthe
color when !has_opacity.
2005-05-10 Owen Taylor <otaylor@redhat.com>
* gdk/gdkcairo.[ch] gdk/gdkcolor.[ch] gdk/Makefile.am: Add source
files for Cairo convenience functionality.
* gdk/gdkcairo.h (gdk_cairo_rectangle, gdk_cairo_region): Add a
convenience functions to add GdkRectangle, GdkRegion to a cairo path.
* gdk/gdkwindow.c gdk/gdkgc.c gtk/gtkcolorsel.c gtk/gtkiconview.c
gtk/gtkstyle.c: Use gdk_cairo_rectangle/region().
* gdk/gdkcairo.[ch] gdk/gdkdrawable.h gdk/gdkdraw.c: Rename
gdk_drawable_create_cairo_context() to gdk_cairo_create().
* gdk/gdkcairo.c gdk/gdkpixbuf.h gdk/gdkpixbuf-render.c:
Rename gdk_pixbuf_set_as_cairo_source() to
gdk_cairo_set_source_pixbuf().
* gdk/gdkdraw.c gdk/gdkpango.c gtk/gtkcolorsel.c gtk/gtkhruler.c
gtk/gtkhsv.c gtk/gtkiconview.c gtk/gtkstyle.c gtk/gtkvruler.c:
Adjust for renames.
* gdk/gdk.symbols: Update.
* gtk/gtkwidget.c (gtk_widget_queue_shallow_draw): Fix
coordinate system problem that was causing the wrong portions
to be invalidated.
* gtk/gtkcellrenderer.c (gtk_cell_renderer_render)
gtk/gtkcellrendererpixbuf.c (gtk_cell_renderer_pixbuf_render)
gtk/gtkcellrendererprogress.c (gtk_cell_renderer_progress_render)
gtk/gtkcellrenderertext.c (gtk_cell_renderer_text_render)
gtk/gtkcellview.c (gtk_cell_view_expose)
gtk/gtkdnd.c (gtk_drag_highlight_expose)
gtk/gtkentry.c (gtk_entry_draw_text)
gtk/gtktextview.c (text_window_invalidate_rect): Some cairoization.
* gtk/gtkcalendar.[ch]: Beat into something roughly resembling
GTK+ style ... use instance-private data and standard names for
private structure, etc. Move function docs inline.
* gtk/gtkcalendar.[ch]: Switch to drawing everything in
expose. Switch drawing to Cairo.
* gtk/gtkcalendar.c (gtk_calendar_freeze): Deprecate
gtk_calendar_freeze/thaw
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
2005-04-18 Owen Taylor <otaylor@redhat.com>
* gtk/gtkstyle.c gtk/gtkcolorsel.c gtk/gtkhsv.c gtk/gtkiconview.c
* gdk/gdkcolor.c gdk/gdkwindow.c gdk/gdkpixbuf-render.c
gdk/gdkpango.c tests/testcairo.c: Update to new Cairo API for
setting color and opacity. (#301066, Vincent Noel)
Mon Mar 28 15:13:42 2005 Søren Sandmann <sandmann@redhat.com>
* gdk/gdkwindow.c (gdk_window_invalidate_maybe_recurse): Don't
invalidate areas that are covered by mapped input-output child
windows. Bug 141380.
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()
2005-03-15 Owen Taylor <otaylor@redhat.com>
* gdk/gdkdrawable.h gdk/gdkdraw.c gdk/gdkpixmap.c gdk/gdkwindow.c
gdk/x11/gdkdrawable-x11.c gdk/x11/gdkpixmap-x11.c gdk/x11/gdkwindow-x11.c
gdk/gdkinternals.h: Switch set_cairo_target() virtual function to
ref_cairo_surface()
* gdk/gdkdrawable.h gdk/gdkdraw.h: Switch set_cairo_target() virtual
function to create_cairo_context()
* gdk/gdkwindow.c: Clear double buffer pixmaps with Cairo.
* gdk/x11/gdkwindow-x11.c: Keep all components in GdkWindowObject.bg_color,
not just the pixel.
* tests/testcairo.c: Update for create_cairo_context()
* gdk/gdkdraw.c (gdk_draw_trapezoids, gdk_draw_glyphs[_transformed]):
Reimplement in terms of Cairo, bypass the vtable entries.
* gdk/x11/gdkdrawable-x11.[ch] gdk/x11/gdkdisplay-x11.[ch]
gdk/x11/gdkgc-x11.c gdk/x11/gdkpango-x11.c
gdk/x11/gdkprivate-x11.h gdk/x11/Makefile.am: Remove
implementation of draw_trapezoids / draw_glyphs[_transformed].
* gdk/gdkpango.c: Switch GdkPangoRenderer to use Cairo
* gdk/gdkpango.c gdk/x11/gdkpango-x11.c: Move
gdk_pango_context_get_for_screen() into the backend independent code.
* gdk/x11/gdkdrawable-x11.[ch]: Remove Xft use, use RENDER directly
for drawing images.
* gdk/gdkdrawable.h gdk/x11/gdkdrawable-x11.c: Remove
gdk_draw_rectangle_alpha_libgtk_only.
* gdk/gdkpixbuf.h gdk/gdkpixbuf-render.c: Add
gdk_pixbuf_set_as_cairo_source()
* gdk/gdk.symbols: Update
* gtk/gtkcolorsel.c gtk/gtkhsv.c gtk/gtkiconview.c gtk/gtkruler.[ch]
gtk/gtk[hv]ruler.c: Convert to Cairo rendering.
* gtk/gtkstyle.c (gtk_default_draw_check, gtk_default_draw_focus,
gtk_default_draw_option): Switch to Cairo. Simplify the checkbutton,
radio button style for now to get something more scalable.
* gtk/gtksettings.c: #if 0 out the code to use PangoXft for hinting/
antialiasing/dpi settings.
2005-03-15 Matthias Clasen <mclasen@redhat.com>
Make PLT-reduction work with gcc4, and don't include
everything in gdkalias.h:
* gdk/gdk.symbols: Group symbols by header and source file.
* gdk/makegdkalias.pl: Protect definitions by the same
preprocessor symbols used to guard the headers. Move
the alias declarations to a separate file which is
produced when calling makegdkalias.pl -def
* gdk/Makefile.am (gdkaliasdef.c): Add a rule to generate this
file.
* gdk/*.c, gdk/x11/*.c: Include gdkalias.h after the other
headers, include gdkaliasdef.c at the bottom.
2005-02-03 Owen Taylor <otaylor@redhat.com>
* gdk/gdkdrawable.[ch] gdkpixmap.c gdkwindow.c: Add
gdk_drawable_set_cairo_target().
* tests/testtreeflow.c (enum): Use grand not rand as a variable
name because one of the cairo headers is pulling in stdlib.h.
* tests/testcairo.c tests/Makefile.am: Add a simple cairo based
example.
* configure.in: Bump release to 2.7.0, gtk_binary_version to 2.7.0.
* Require libpangocairo for all backends.
Wed Dec 22 14:22:19 2004 Søren Sandmann <sandmann@redhat.com>
* tests/testtoolbar.c (timeout_cb): Add sensitivity-changing
timeout. Written by Christian Persch.
Wed Dec 22 14:14:02 2004 Søren Sandmann <sandmann@redhat.com>
Bug #161561
* gdk/x11/gdkwindow-x11.c (tmp_{re,un}set_bg): Only set/reset the
background for windows that get expose events.
* gdk/gdkwindow.c (gdk_window_process_updates_internal): Remove
hack to repaint !expose windows.
Sat Nov 20 15:13:51 2004 Owen Taylor <otaylor@redhat.com>
* gdk/gdkpango.[ch]: Add GdkPangoRenderer, a subclass of
PangoRenderer targeting GDK drawables. Use to implement the old
gdk_draw_layout() and friends.
* gdk/gdkdraw.c gdk/gdkdrawable.h gdk/gdkwindow.c gdk/gdkpixmap.c:
Add gdk_draw_glyphs_transformed() gdk_draw_trapezoids() and
the corresponding members of GdkDrawableClass. Add a fallback
implementation of gdk_draw_trapezoids() in terms of pixbufs.
* gdk/gdkwindowing.h gdk/x11/gdkg-x11.h: Add
_gdk_windowing_gc_get_foreground() to enable the fallback
trapezoid implementation.
* gdk/x11/gdkdrawable-x11.c gdk/x11/gdkdisplay-x11.h: Implement
draw_glyph_transformed, draw_trapezoids.
* gdk/x11/gdkdrawable-x11.[ch]: Add
_gdk_x11_drawable_draw_xtrapezoids, _gdk_x11_drawable_draw_xft_glyphs
for use of GdkX11Renderer.
* gdk/x11/gdkgc-x11.c gdk/x11/gdkprivate-x11.h: Implement
GDK_TILED, GDK_STIPPLED, GDK_OPAQUE_STIPPLED in the RENDER codepath.
* gdk/gdkpango-x11.c: Add GdkX11Renderer... a subclass of
PangoXftRenderer that does tiles/stipples and fallback rendering
of trapezoids without the RENDER extension.
* gdk/gdkpango-x11.c gdk/x11/gdkscreen-x11.[ch] _gdk_x11_renderer_get:
Add _gdk_x11_renderer_get() to get a singleton GdkX11Renderer
for the screen.
* gdk/x11/gdkdrawable-x11.c (get_impl_drawable): Fix a None/NULL
confusion.
* gtk/gtklabel.[ch] gtk/gtk.symbols: Add gtk_label_set/get_angle(),
and an ::angle property.
* gtk/gtklabel.c: Remove #if 0'd dead code gtk_label_paint_word().
* gtk/gtktextdisplay.c: Switch to using a GtkTextRenderer subclass
of GdkPangoRenderer for drawing.
* gtk/gtktextlayout.[ch] gtk/gtktextdisplay.c: Switch to using
gtk_attr_shape_new_with_data() to store backreferences to
embedded pixmaps and widgets. Leave line_display->shaped_objects
around for backwords compatibility.
* gdk/gdkpango.[ch] (gdk_pango_context_set_colormap): Describe
as deprecated, remove implementation.
* gtk/gtkwidget.c (gtk_widget_create_pango_context): Remove
call to gdk_pango_context_set_colormap.
* demos/gtk-demo/Makefile.am demos/gtk-demo/rotated_text.c: Add
a demo showing drawing rotated text.
* tests/testgtk.c: Add a rotated-label test, and also a rotated
drawing test (differs from demos/gtk-demo/rotated_text by also
using a tile)
