This is an interface meant to be implemented by the "pad" devices.
This device-specific interface exposes the mapping of all pad features,
it allows retrieving:
- The number of buttons/rings/strips
- The number of groups
- The number of modes a group has
- Whether a given button/ring/strip belongs to a given group
https://bugzilla.gnome.org/show_bug.cgi?id=770026
Instead of giving out Cairo contexts, GdkWindow should provide a
"drawing context", which can then create Cairo contexts on demand; this
allows us to future proof the API for when we're going to use a
different rendering pipeline, like OpenGL.
https://bugzilla.gnome.org/show_bug.cgi?id=766675
This adds the new type GdkGLContext that wraps an OpenGL context for a
particular native window. It also adds support for the gdk paint
machinery to use OpenGL to draw everything. As soon as anyone creates
a GL context for a native window we create a "paint context" for that
GdkWindow and switch to using GL for painting it.
This commit contains only an implementation for X11 (using GLX).
The way painting works is that all client gl contexts draw into
offscreen buffers rather than directly to the back buffer, and the
way something gets onto the window is by using gdk_cairo_draw_from_gl()
to draw part of that buffer onto the draw cairo context.
As a fallback (if we're doing redirected drawing or some effect like a
cairo_push_group()) we read back the gl buffer into memory and composite
using cairo. This means that GL rendering works in all cases, including
rendering to a PDF. However, this is not particularly fast.
In the *typical* case, where we're drawing directly to the window in
the regular paint loop we hit the fast path. The fast path uses opengl
to draw the buffer to the window back buffer, either by blitting or
texturing. Then we track the region that was drawn, and when the draw
ends we paint the normal cairo surface to the window (using
texture-from-pixmap in the X11 case, or texture from cairo image
otherwise) in the regions where there is no gl painted.
There are some complexities wrt layering of gl and cairo areas though:
* We track via gdk_window_mark_paint_from_clip() whenever gtk is
painting over a region we previously rendered with opengl
(flushed_region). This area (needs_blend_region) is blended
rather than copied at the end of the frame.
* If we're drawing a gl texture with alpha we first copy the current
cairo_surface inside the target region to the back buffer before
we blend over it.
These two operations allow us full stacking of transparent gl and cairo
regions.
These macros follow the recent changes in GLibs deprecation
setup. We now annotate deprecated functions with the version
they were deprecated in, and you can define the macro
GDK_VERSION_MIN_REQUIRED to cut off deprecation warnings for
'recent' deprecations.
At the same time, we introduce version annotations for new API
and allow you to avoid 'recent' API additions by defining
GDK_VERSION_MAX_ALLOWED.
These functions were trivial g_spawn wrappers in all backends
except for X11, and they can be easily replaced by
g_app_info_create_for_commandline + GdkAppLaunchContext.
This commit does a number of things:
- remove some dead wchar configury from configure.ac and gdkconfig.h
- repurpose gdkconfig.h as header that contains GDK_WINDOWING_foo
macros for each included backend, include it in gdk.h and install
it in $includedir instead of below $libdir
- drop the backend from the library names
- build libgdk-3.0.la as a convenience lib and include it in libgtk-3.0.la
It does not yet enable building multiple backends at the same time.
The old functions to get core pointer and devices list are gone as
well. This slice is entirely replaced internally by multidevice
handling and may just go.
* add per-display gdk_x11_display_error_trap_push()
(X11-specific because gdk_error_trap_push() probably
should have been)
* make gdk_error_trap_push() handle only GDK displays
not displays opened without a GDK wrapper
* make gdk_error_trap_pop() and gdk_x11_display_error_trap_pop()
automatically sync only if needed, so manual gdk_flush() is not
required
* add gdk_error_trap_pop_ignored() which just asynchronously
ignores errors, so never needs to sync
* add G_GNUC_WARN_UNUSED_RESULT to plain pop(), because
if you use plain pop() and don't need the return value,
the async gdk_error_trap_pop_ignored() should be used
instead. This results in lots of warnings to clean
up in a later patch.
The main objective here was to avoid the need to sync just
to ignore an error. Now, syncing is automatic, and only
happens when we need to know the error code.
https://bugzilla.gnome.org/show_bug.cgi?id=629608
gdk_threads_mutex, gdk_threads_lock and gdk_threads_unlock are removed
from public API. gdk_threads_mutex was deprecated already. Instead of
using gdk_threads_lock and _unlock one was presumably supposed to use
the GDK_THREADS_ENTER and _LEAVE macros, which now simply call the
corresponding gdk_threads_enter() and _leave() functions.
Remove he dllimport/dllexport ugliness for GDK for Windows.
There is still a gdk_display variable being exported by the X11
backend.
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
2008-05-28 Michael Natterer <mitch@imendio.com>
* gdk/gdk.h: define __GDK_H_INSIDE__ around including all other
headers.
* gdk/gdkenumtypes.h.template
* gdk/gdk*.h: add single-include guards that #error out if
GTK_DISABLE_SINGLE_INCLUDES is defined and any of these files is
included individually. Also removed some redundant includes and
did some tiny trailing whitespace removal that's not worth to
commit separately.
* gdk/gdkprivate.h: include <gdk/gdk.h> instead of individual
files.
* gdk/win32/gdkwin32.h
* gdk/x11/gdkx.h: only include <gdk/gdkprivate.h> and remove all
other includes.
svn path=/trunk/; revision=20217
2007-03-13 Emmanuele Bassi <ebassi@gnome.org>
Apply patch by Vytautas Liuolia for changing the startup
notification id on a window in the X11 backend. (#347375)
* gdk/gdk.h:
* gdk/gdkx.h:
* gdk/x11/gdkdisplay-x11.c: Add gdk_notify_startup_complete_wit_id()
and gdk_x11_display_get_startup_notification_id().
* gdk/gdkwindow.h:
* gdk/x11/gdkwindow-x11.c: Add gdk_window_set_startup_id().
* gtk/gtkwindow.h:
* gtk/gtkwindow.c: Add gtk_window_set_startup_id(), used to
change the startup notification id.
(gtk_window_class_init), (gtk_window_init),
(gtk_window_set_property): Add write-only "startup-id" property
to GtkWindow.
(gtk_window_realize): Set the startup notification id
on a GtkWindow if it's valid.
(gtk_window_map): If we have another valid startup notification
id then finish the notification process.
svn path=/trunk/; revision=17508
2006-12-22 Matthias Clasen <mclasen@redhat.com>
* gdk/gdk.symbols:
* gdk/gdk.h:
* gdk/gdk.c: Add functions to allow threadsafe handling
of idles and timeouts wrt. to the GDK lock. (#321886,
Chris Wilson)
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
