Commit Graph

1211 Commits

Author SHA1 Message Date
Benjamin Otte
10a7963ebf gdk: Remove unused structs from ColorMap days 2016-10-16 18:17:21 +02:00
Benjamin Otte
eace2cf421 API: Remove gdk_window_set_background()
Backgrounds are always transparent black.
2016-10-16 18:17:21 +02:00
Benjamin Otte
662001b60a API: Remove ability to set visuals on windows
And with it, gtk_widget_get_visual() and gtk_widget_set_visual() are
gone.

We now always use the RGBA visual (if available) and otherwise fall back
to the system visual.
2016-10-16 18:17:21 +02:00
Benjamin Otte
89f2e17f91 API: Remove gdk_window_set_composited()
And the related call gdk_display_supports_composite().
2016-10-16 18:17:21 +02:00
Benjamin Otte
fcbd480c76 API: Remove GDK_WA_CURSOR
The cursor was set using gdk_window_set_cursor() even in
gdk_window_new().

So instead of having yet another flag, just make the users of that flag
call gdk_window_set_cursor() directly after the window was created.
2016-10-16 18:17:21 +02:00
Benjamin Otte
2fd5048943 API: window: Remove suppport for changing wmclass_name/group
X11 was the only backend to support it and people can just override it
using XSetClassHint() directly.
The docs already advertised the function as "Do not use".

Keep the existing call to XSetClassHint() in place, so that we keep
setting the same values as in GTK3.
2016-10-16 18:17:21 +02:00
Benjamin Otte
9be9e00a0e API: screen: Remove gdk_screen_make_display_name()
It's identical to gdk_display_get_name().
2016-10-16 18:17:21 +02:00
Benjamin Otte
6b9e481e38 API: screen: Remove gdk_screen_get_active_window()
... and gdk_screen_get_window_stack().

Those functions were originally added in
5afb4f0f11 but do not seem to be used as
they are not implemented anywhere but in X.

As GDK is not meant to fulfill window management functionality I'm going
to remove these functions without replacements.
2016-10-16 18:17:21 +02:00
Benjamin Otte
26f9b584be API: gdk: Remove gdk_screen_get_number()
It's useless everywhere but in internal X11 code.
2016-10-16 18:17:21 +02:00
Benjamin Otte
0be88cc76e API: Remove gdk_screen_get_width() and gdk_screen_get_height()
... and gdk_screen_get_width_mm() and gdk_screen_get_height_mm() and
the shortcut counterparts that call these functions on the default
screen.

Modern display servers don't provide an ability to query the size of a
screen or display so we shouldn't allow that either.
2016-10-16 18:17:21 +02:00
Benjamin Otte
2033b06cb6 gdk: Require passing screen size to translate_screen_coord() 2016-10-16 18:17:21 +02:00
Matthias Clasen
d053d5c58f Rename Makefile references from 3.0 to 4.0
This is almost certainly incomplete.
Needs careful scrutiny
2016-10-07 10:34:50 -04:00
Jeremy Tan
b6ac1b4bbf GDK W32: Ignore autorepeated key presses on modifier keys
The X11 backend does not send autorepeated messages for modifier keys,
and doing so prevents motion compression from working.

https://bugzilla.gnome.org/show_bug.cgi?id=771568
2016-09-19 12:36:53 +00:00
Jeremy Tan
a5c8fedf47 GDK W32: Always process all available messages
The GLib main loop blocks on MsgWaitForMultipleObjectsEx to
determine if there are any incoming messages while also allowing
for background tasks to run. If all available messages are not
processed after MsgWaitForMultipleObjectsEx has signaled that
there are available, CPU usage will skyrocket.

From my limited understanding (by inspection of profiling
under Visual Studio):
Key is pressed - MsgWaitForMultipleObjectsEx unblocks, and
sends message to GDK's event handler. Some event is now queued.

g_poll unblocks, calls the g_event_dispatch which finally
resolves to gdk_event_dispatch. This then calls
_gdk_win32_display_queue_events, but since a message is already
queued, it fails to call PeekMessage and returns immediately.

At the next iteration, g_poll again calls MsgWaitForMultipleObjectsEx
which queues yet another event and returns almost immediately, since
there are events available which haven't been processed by PeekMessage.

The dispatch function is then called and the process repeats.

https://bugzilla.gnome.org/show_bug.cgi?id=771568
2016-09-19 12:36:51 +00:00
Руслан Ижбулатов
0274b2c94e GDK W32: Set is_modifier field in GdkKeyEvent
This hardcodes Control, Alt and Shift as modifier keys.

https://bugzilla.gnome.org/show_bug.cgi?id=602773
2016-09-17 20:24:18 +00:00
Руслан Ижбулатов
b05ed13710 GDK W32: Remove obsolete assertions 2016-08-26 20:46:27 +00:00
Руслан Ижбулатов
09004b51a9 Update GTK+ Windows icon (now scles up to 256x256)
Also add the SVG file that was used to produce it (derived
from the old raster logo).

https://bugzilla.gnome.org/show_bug.cgi?id=768081
2016-08-19 23:55:19 -04:00
Руслан Ижбулатов
5e6c1928b4 W32: Prefer the deadkey combinations that the OS uses
Pick the W32 API for possible deadkey+<something> combinations
and prefer these to other sources of deadkey combos.
Specifically, if W32 API supports at least one combo for a particular
deadkey, only use that data and do not attempt to do other, unsupported
combinations, even if they make sense otherwise.
This is needed to, for example, correctly support US-International
keyboard layout, which produces a combined character for <' + a>
combo, but not for <' + s>, for example.

This is achieved by stashing all the deadkeys that we find in
an array, then doing extra loop through all virtual key codes and
trying to combine them with each of these deadkeys. Any combinations
that produce a single character are cached for later use.

In GTK Simple IM context, call a new GDK W32 function to do a lookup
on that cached combination table early on, among the "special cases"
(which are now partially obsolete).

A limitation of this code is that combinations with more than
one deadkey are not supported, except for combinations that consist
entirely of 2 known deadkeys. The upshot is that lookups should
be relatively fast, as deadkey array stays small and the combination
tree stays shallow.

Note that the use of ToUnicodeEx() seems suboptimal, as it should
be possible to just load a keyboard library (KBD*.DLL) manually
and obtain and use its key table directly. However, that is much more
complicated and would result in a significant rewrite of gdkkeys-win32.
The code from this commit, though hacky, is a direct addition to
existing code and should cover vast majority of the use-cases.

https://bugzilla.gnome.org/show_bug.cgi?id=569581
2016-08-04 16:37:19 +00:00
Руслан Ижбулатов
52c7e07948 GDK W32: Cache multiple keyboard layouts simultaneously
This changes the group/level semantic.
Previously W32 backend used "group 0/1" to denote "AltGr OFF/ON"
and "level 0/1" to denote "Shift is OFF/ON".
Now "group" means "keyboard layout" and there can be up to 255 groups,
while AltGr and Shift are combined into a single level enum that
takes values between 0 and 4.
Unlike X, W32 doesn't do effective group overriding, meaning that
it will never tell the caller that a different group was actually
used (even for universal keys, such as Enter), because key symbol
table is completely fabricated and there's no point in trying to
save a few of kilobytes of RAM by not duplicating universal key
records for all groups.

Also contains many whitespace changes (tab elimination, fixed
indentation) and cleanup (axed a few global variables, these are
now accessed via the default keymap).

https://bugzilla.gnome.org/show_bug.cgi?id=768722
2016-08-04 16:37:18 +00:00
Руслан Ижбулатов
2233566f48 GDK W32: Support UTF-16 surrogate pairs passed via VK_PACKET
This is, essentially, a piece of g_utf16_to_ucs4() built into GDK
W32 keyboard message processing.

https://bugzilla.gnome.org/show_bug.cgi?id=769126
2016-07-28 15:55:11 +00:00
Matthias Clasen
82fd72a477 Opt in to structured logging
Define G_LOG_USE_STRUCTURED, so that all our g_debug, g_warning,
etc calls directly use structured logging and provide source information.
2016-07-22 23:13:20 -04:00
Руслан Ижбулатов
bd86715ed3 GDK W32: Fix dragging AeroSnap application
The original patch for commit b420c53773
was applied incorrectly, doing the actual snapping in the wrong place.
Move the code.
2016-06-05 09:00:40 +00:00
Matthias Clasen
0f476590fb Make gdk_event_get_pointer_emulated public
There is not strong reason to keep the getter private.
At the same time, strip _-prefixes from a few other GdkEvent
APIs. Update all callers.
2016-05-10 15:16:45 -04:00
Chun-wei Fan
e24530d03b gdk/win32/gdkmonitor-win32.c: Fix build on non-GCC
WINBOOL is MinGW-specific, so change it to BOOL, which is universally
available.

Also, Visua Studio is more picky on where __stdcall (WINAPI) is placed, so
fix that to be in-sync with what is done in the other sources.
2016-05-09 13:14:01 +08:00
Руслан Ижбулатов
026cb53875 win32: Port to new monitor api 2016-04-27 23:18:16 -04:00
Jonas Ådahl
1a4f000f3b gdk/dnd: Don't use default display when getting cursor
Always associate a drag context with a GdkDisplay and use that when
getting a cursor for a given action.

If we don't do this, dragging on a window that doesn't use the default
display will make us use cursors from the wrong display.

https://bugzilla.gnome.org/show_bug.cgi?id=765565
2016-04-26 23:03:24 +08:00
Frediano Ziglio
cf14fea5a8 Save scancode inside GdkEventPrivate
Windows save in hardware_keycode an information which is not so low
level and some application require the hardware scancode.
As Windows provides this information save it in GdkEventPrivate
and provide a function to get this information.
For no Windows system the function return the hardware_keycode instead.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>

https://bugzilla.gnome.org/show_bug.cgi?id=765259
2016-04-21 22:35:47 -04:00
Jeremy Tan
8ebb6969cb GDK W32: Fix positioning of reparented window
MoveWindow should not be used over the pre-existing move/resize
functions, which already correctly position a window with respect
to its parent, while also taking into account the size of window
decorations.

https://bugzilla.gnome.org/show_bug.cgi?id=765100
2016-04-15 13:21:11 +00:00
Jeremy Tan
260d521dd7 GDK W32: Fix bounding rect calculation on window creation The bounding rect specifies the top left and bottom right corners - the bottom right corner must account for the current window position.
https://bugzilla.gnome.org/show_bug.cgi?id=764996
2016-04-13 14:15:36 +00:00
Руслан Ижбулатов
c2aa7d0749 GDK W32: Deduplicate reparenting
gdk_window_reparent() already changes children list for old and new parent.
Doing so twice results in a circular reference in the list, which can hang
the application later, for example in gtk_window_show().

https://bugzilla.gnome.org/show_bug.cgi?id=764845
2016-04-12 12:56:11 +00:00
Ignacio Casal Quinteiro
a3bff7d41e win32: rollback change and use _gdk_display
This makes usage of _gdk_display again when creating a window.
This is needed because there is a window created when the display
is being initialized, so it becomes a chicken and egg problem.
For now we roll back this to fix the wintab crash but we might
want to fix this again in the future by improving the wintab
initialization.

https://bugzilla.gnome.org/show_bug.cgi?id=764664
2016-04-11 22:25:41 +02:00
Ignacio Casal Quinteiro
c9add3161f win32: add missing empty lines 2016-04-11 22:25:41 +02:00
Руслан Ижбулатов
adff59843b GDK W32: Don't move windows into top-left corner on style change
This fixes a bug that was introduced by db1b24233e.
The reason why 0:0 coordinates were passed was that SWP_NOREPOSITION was
misinterpreted as SWP_NOMOVE. That is not the case - SWP_NOREPOSITION
prevents owner Z-order change, not the window position change.
2016-04-06 10:22:15 +00:00
Руслан Ижбулатов
bde5281ae8 GDK W32: Use a dumb window class for decorative windows
Currently only one kind of decorative window is in use - the shape
indicator that is shown when snapping windows to the edge of the screen.

When normal toplevel class is used, its window procedure expects certain
motions from GDK (passing user data to CreateWindowEx(), registering
handle in a hash map etc), and might crash if that is not done.

Dumb window doesn't require anything, it can just be.

https://bugzilla.gnome.org/show_bug.cgi?id=763013
2016-03-30 09:04:46 +00:00
Руслан Ижбулатов
cfbb8c5252 GDK W32: Add/subtract shadow when (un)snapping
Now halfleft/halfright/fullup snaps do hug screen edges as intended.

Documents AeroSnap behaviour when snapped windows are drag-resized
(currently this implementation handles this in a very simplistic way).

Don't believe GTK when it tells us that window shadow is 0, preserve
previous values (but do remember that GTK wants no shadow, in case
we need that).

Fixes a couple of bugs in unsnapping (check offset against the half
of the window; don't put pointer in the middle of the window vertically
if it still fits in the top half).

https://bugzilla.gnome.org/show_bug.cgi?id=763013
2016-03-30 09:04:37 +00:00
Руслан Ижбулатов
f853283d7b GDK W32: Add/subtract shadow when drag-resizing
Implements gdk_win32_window_set_shadow_width().
Uses shadow width/height to adjust max tracking size, allowing
windows to be drag-resized to cover the whole desktop.

Also uses SM_C*VIRTUALSCREEN instead of SM_C*MAXTRACK.

https://bugzilla.gnome.org/show_bug.cgi?id=763013
2016-03-30 09:03:56 +00:00
Руслан Ижбулатов
b0131616b2 GDK W32: Draw snap indicators for AeroSnap
Indicator is a bare layered click-through native window,
painted completely by GDK, including animation.

This commit also isolates some of the more spam-ish debug logging
under ifdef.

This commit also changes the system metric used for maximal window
height for the snapping purposes. Turns out, SM_CYMAXTRACK is way
too large, use SM_CYVIRTUALSCREEN instead.

https://bugzilla.gnome.org/show_bug.cgi?id=763013
2016-03-30 09:03:41 +00:00
Руслан Ижбулатов
b420c53773 GDK W32: Add drag-to-snap feature to AeroSnap
This implements the part of AeroSnap that snaps windows when you
drag them (while moving or resizing) to the edge of the screen.

It also fixes drag behaviour for snapped and maximized windows
(if such windows are dragged, first they must be unmaximized/unsnapped).

Note that this code does not take into account the shadow width, and
because of that the under-pointer-position-preserving window moves
might not look as such for maximized windows, which lack the shadow
when maximized, but do have the shadow when unmaximized.

This commit also doesn't cover some corner-cases the same way AeroSnap does.

Also, the snapping indicator (which is supposed to be a window shape that
shows where the window will be if the drag op is stopped at its current
point) is not being drawn, all routines responsible for its creation,
moving and drawing are stubs.

https://bugzilla.gnome.org/show_bug.cgi?id=763013
2016-03-30 09:00:07 +00:00
Руслан Ижбулатов
2ea96cf946 GDK W32: Improve AeroSnap - don't resize windows that fit
This is what AeroSnap does. If a window is being unsnapped on
a new monitor, check if the work area is large enough for the
window to fit in its normal size. If the window fits, just
reposition it so that the ratio of
left-window-edge-to-screen-edge / right-window-edge-to-screen-edge
remains the same, without scaling the window.

https://bugzilla.gnome.org/show_bug.cgi?id=763013
2016-03-30 09:00:02 +00:00
Руслан Ижбулатов
0ce217cf94 GDK W32: Re-implement AeroSnap for CSD windows
It works exactly like AeroSnap.
Except for shift+win+left/right, which is left for AeroSnap
to handle (AeroSnap takes action before we get the message,
so there's no way for us to override it).
The only thing that doesn't work is shift+win+left/right on
a maximized window, for reasons unknown at the moment.

This only implements winkey+stuff behaviour of AeroSnap,
not the drag-to-the-edge-and-something-funny-happens one.

https://bugzilla.gnome.org/show_bug.cgi?id=763013
2016-03-30 08:59:56 +00:00
Руслан Ижбулатов
77eebbda5c GDK W32: Erase hidden layered windows before showing them
If a layered window was hidden and is made visible, erase its
contents before showing it. GDK will schedule a redraw, but until
then we generally don't want to show old contents.

https://bugzilla.gnome.org/show_bug.cgi?id=763783
2016-03-29 14:30:19 +00:00
Руслан Ижбулатов
cea8c29a26 GDK W32: Implement show_window_menu()
This is achieved by sending undocumented message WM_SYSMENU
to the window.
Before doing that, the window is given WS_SYSMENU style
(to enable window menu) and some combination of
WS_MAXIMIZEBOX (for "Mazimize" item)
WS_MINIMIZEBOX (for "Minimize" item)
WS_SIZEBOX (for "Size" item)
depending on which operations are currently permissible.

WM_SYSMENU is processed by DefWindowProc(), which results
in showing the window menu. We remove extra styles
at the first opportunity (WM_INITMENU message), as they
alter the way our window is rendered.

https://bugzilla.gnome.org/show_bug.cgi?id=763851
2016-03-29 13:47:49 +00:00
Руслан Ижбулатов
b9b67e05e1 GDK W32: Optimize clipboard handling a bit
Delay as long as possible before calling OpenClipboard(),
call CloseClipboard() as quickly as possible after that.
Don't call OpenClipboard() when we don't need to (for example,
we don't need to open clipboard to call GetClipboardOwner()).

Also, print out actual W32 error code in some cases where it
was not printed before.

https://bugzilla.gnome.org/show_bug.cgi?id=763907
2016-03-26 00:03:50 +00:00
Руслан Ижбулатов
692c3b11ff GDK W32: Print error code along with the error message
Error codes can be easily looked up in an error code list
and/or googled up. Error messages, while descriptive, often
describe the wrong thing, and the messages themselves are not
part of the documentation of a function, unlike error codes.
It would be preferable to have the code, or both.

https://bugzilla.gnome.org/show_bug.cgi?id=763913
2016-03-25 22:04:58 +00:00
Руслан Ижбулатов
c4c00299b2 GDK W32: Print more debug info about events
1) Print timestamps for events
2) Print wParam and lParam (in hex form) for messages

https://bugzilla.gnome.org/show_bug.cgi?id=763913
2016-03-25 22:04:57 +00:00
Руслан Ижбулатов
7d2a7a5626 GDK W32: Don't move iconic windows
Using UpdateLayeredWindow() on iconic windows brings them *back* from
their iconic (minimized) state. That is bad.
As a precaution, also don't use SetWindowPos() on iconic windows.
This means that iconic windows can't be moved. That is fixable
by using SetWindowPlacement(), but there is no pressing need to do so,
as there are very few cases when windows need to be moved while minimized.

https://bugzilla.gnome.org/show_bug.cgi?id=763835
2016-03-18 07:49:39 +00:00
Руслан Ижбулатов
5ac848d229 GDK W32: Fix shown window position calculation for dialogs and splashes
Two errors here:
1) A typo in splashscreen rectangle calculation - sets right twice
   instead of setting top
2) Centering for dialogs is off because it doesn't convert
   GDK virtual desktop coordinates to Windows WM virtual desktop
   coordinates by adding _gdk_offset_*

https://bugzilla.gnome.org/show_bug.cgi?id=763628
2016-03-14 16:31:14 +00:00
Руслан Ижбулатов
ab16b19a0a GDK W32: Fix pointer-under-window code for custom resize
This code:
>  gdk_window_get_root_origin (window, &x, &y);
>  x -= root_x;
>  y -= root_y;
>  pointer_window = gdk_device_get_window_at_position (device, &x, &y);
was meant to find the child gdk window at coordinates root_x and root_y.

These 4 lines had 2 bugs:
1) x = x - root_x (same for y) is wrong, it should be x = root_x - x
2) gdk_device_get_window_at_position() does not give you the window
   at position x and y. It gives you the window under the device
   (mouse pointer) and the returns the device coordinates in x and y.

https://bugzilla.gnome.org/show_bug.cgi?id=763533
2016-03-14 15:06:51 +00:00
Руслан Ижбулатов
a97e8fd078 GDK W32: Fix a typo 2016-03-12 12:14:04 +00:00
Руслан Ижбулатов
65ea6f8736 GDK W32: Partially rollback the custom resize for GL windows
If a window is being drawn by OpenGL, we need to apply any
pending resizes to it *before* we paint.

https://bugzilla.gnome.org/show_bug.cgi?id=763287
2016-03-10 13:09:32 +00:00
Chun-wei Fan
15c9b3e692 GDK-Win32: Make update_stye_bits() available within the backend
Other portions of the GDK-Win32 backend make use of this function as
layered windows need to be disabled for GL windows and possibly other
parts, so make this function a private function that is available within
the backend.

https://bugzilla.gnome.org/show_bug.cgi?id=763285
2016-03-08 13:26:59 +08:00
Chun-wei Fan
3f190e0fa6 Win32: Disable layered windows for GL
Layered windows and GL do not work well together, so disable layered
windows when initiating a GdkGLContext, so that GtkGLArea programs can run
properly.

Also based on patch by LRN to address the issue.

https://bugzilla.gnome.org/show_bug.cgi?id=763080
2016-03-08 12:16:37 +08:00
Paolo Borelli
8f25481406 win32: use a struct for the event source
This removes the event_poll_fd global variable and the (ab)use of
get_default_display. It is also more consistent with other backends.

Also store display
2016-03-05 20:31:10 +01:00
Paolo Borelli
58a49c1a4b win32: fix "unused variable" warning 2016-03-05 20:31:10 +01:00
Руслан Ижбулатов
a55f1113f5 Remove unused variable 2016-03-03 18:00:44 +00:00
Руслан Ижбулатов
95fe3ec0c9 GDK W32: Fix redrawing during drag-move with no composition 2016-03-03 18:00:43 +00:00
Руслан Ижбулатов
ba89fbd72d GDK W32: Set default cursor from our own theme right away
Otherwise WM-dependent default cursor is used, which does not
match our theme. Worse, later GDK will realize that we have
our own left_ptr cursor and will apply it after all, making
the discrepancy even more noticeable.

https://bugzilla.gnome.org/show_bug.cgi?id=762902
2016-03-03 07:20:02 +00:00
Руслан Ижбулатов
84ddc6aab1 GDK W32: Force correct mouse cursor for custom resize/move
* Explicitly grab the device, setting appropriate cursor on it.
* Fix gdk_device_virtual_set_window_cursor() to just set the
  cursor, without trying to check that mouse is over the given
  window. Also prevent it from immediately resetting cursor.
* Alse take into account things that happen in other parts of
  GDK - don't look for replacement cursor, GDK already did that,
  and don't create a default arrow cursor instead of NULL,
  GDK-W32 already did that up the stack as well.
  Warn about inappropriate cursor == NULL argument instead.

https://bugzilla.gnome.org/show_bug.cgi?id=762711
2016-03-03 07:17:46 +00:00
Руслан Ижбулатов
f9ed3fdd7b GDK W32: Implement gdk_win32_screen_get_monitor_workarea()
https://bugzilla.gnome.org/show_bug.cgi?id=763012
2016-03-03 05:29:12 +00:00
Руслан Ижбулатов
c05f254a6e GDK W32: Use layered windows
Toplevels are now true layered windows that are moved,
resized and repainted via UpdateLayeredWindow() API call.
This achieves transparency without any extra effort,
and prevents window size and window contents desychronization
(bug 761629).

This also changes the way CSD windows are detected. We now
use window decorations to detect CSDiness of a window,
and to decide whether a window should be layered (CSD windows should
be) or not.

Decorations are now stored in the window implementation,
not as a quark-based property of the window-as-gobject.

https://bugzilla.gnome.org/show_bug.cgi?id=748872
2016-03-02 21:42:50 +00:00
Руслан Ижбулатов
e03946bd28 GDK W32: custom (non-WM) drag-move and drag-resize code
Normally works only on CSD windows, non-CSD windows continue
to use WM modal loop for drag-resizing and drag-moving. However,
if it is activated on non-CSD windows, it does work.

Has the advantage of being completely immune to AeroSnap.
AeroSnap only worked partially on CSD windows, with the only part
that worked being "don't let users drag window titlebar outside of
the desktop". Now AeroSnap doesn't work on windows moved by
this code at all, which is good, since they currently don't work
well with it due to the way shadows are drawn.

It's possible to also re-implement AeroSnap (or something similar),
but that is a story for another commit.

This code was originally intended to fix the problem of window
size and window contents desynchronization, but failed to achieve
that result in the end. Nevertheless, it serves as a foundation for
other changes to the way window resizing works.

https://bugzilla.gnome.org/show_bug.cgi?id=761629
2016-03-02 21:39:32 +00:00
Paolo Borelli
4a6f8a065a gdk: remove the display->list_devices vfunc
gdk_display_list_devices is deprecated and all the backends
implement the same fallback by delegating to the device manager
and caching the list (caching it is needed since the method does
not transfer ownership of the container).
The compat code can be shared among all backends and we can
initialize the list lazily only in the case someone calls the
deprecated method.

https://bugzilla.gnome.org/show_bug.cgi?id=762891
2016-02-29 21:53:58 +01:00
Paolo Borelli
33ac51ea72 win32: init wintab when the device manager is constructed
No need to call a method explicitely after creating the object
2016-02-29 18:25:01 +01:00
Paolo Borelli
e9d2a622e2 win32: actually call _gdk_win32_screen_on_displaychange_event
41a371c435 factored out a method
but I forgot to actually amend the commit to call the new function
2016-02-29 18:25:01 +01:00
Paolo Borelli
38ad57948c gdk: remove the core_pointer field from GdkDisplay
It is not used anymore, so no need to set it

https://bugzilla.gnome.org/show_bug.cgi?id=762820
2016-02-29 14:15:04 +01:00
Paolo Borelli
aaed73671c win32: close the screen when disposing the display 2016-02-28 15:53:52 +01:00
Paolo Borelli
41a371c435 win32: factor out on_displaychange_event method for the screen
This allows us to make more initialization methods private to the
screen object.
2016-02-28 12:19:08 +01:00
Paolo Borelli
48d693ea80 win32: make init_root_window private to the screen object
It can be called during the screen object initilization
2016-02-28 12:18:58 +01:00
Paolo Borelli
b20f80e65a win32: move function
Just reorder code in preparation to calling functions defined
before this one
2016-02-28 11:53:10 +01:00
Paolo Borelli
00f396dea9 win32: rename initialization function for clarity 2016-02-28 11:50:07 +01:00
Paolo Borelli
58e169c04c win32: do not confuse gtk-doc 2016-02-28 11:37:38 +01:00
Paolo Borelli
e48bd2e00b win32: move gdkvisual code in gdkscreen
Except for the init function, all the visual related code is made
of gdkscreen vfuncs, so let's move it to gdkscreen-win32. This way
we avoid keeping other static variables and instead store the info
inside the screen struct.
2016-02-28 11:37:38 +01:00
Paolo Borelli
70d689cddd gdk: calculate pixel color shift and precision lazily
This gets rid of the decompose_mask utility entirely and simplifies
backend code.
2016-02-27 12:27:54 +01:00
Paolo Borelli
f73e7680ed gdk: factor out utility shared among backends
Removes duplicated code and makes sure we use the version which
is safe against infinite loops
2016-02-27 10:46:59 +01:00
Fredy Paquet
0a6ee5e2cf W32: Fix for commit 1f74f12d9, re-enabling decimal separator key
1f74f12d9 rendered entry of keypad decimal mark unuseable for
several national keyboard layouts, this commit amends that, at
least for W32, and makes GTK+ behave more or less the same way
W32 behaves.

The patch works like this:
- When typing the first character at the keyboard or when switching
  keyboard layouts, the decimal mark character will be cached in the
  static variable "decimal_mark" within gdkkeys-win32.c

- in case of WIN32, gdk_keyval_to_unicode() asks gdkkeys-win32.c for the
  current decimal_mark when converting GDK_KEY_KP_Decimal.

https://bugzilla.gnome.org/show_bug.cgi?id=756751
2016-02-26 17:24:32 +00:00
Руслан Ижбулатов
c61764b0f9 GDK W32: Fix the filling of MINMAXINFO
1) MSDN says that the coordinates of the maximized window
   must be specified as if the window was on the primary display,
   even if nearest display where it ends up is not the primary display.
   So instead of using nearest display work area verbatim,
   use it only to account for taskbar size, while using
   primary display top-left corner (0:0) as the reference point.
2) MSDN says that max tracking size is a system property, we
   should just call GetSystemMetrics() and use that.

https://bugzilla.gnome.org/show_bug.cgi?id=762629
2016-02-26 08:02:03 +00:00
Paolo Borelli
c643d8b402 Win32: fix warning 2016-02-22 21:45:08 +01:00
Paolo Borelli
bc3c855e35 wip _gdk_display 2016-02-22 21:45:08 +01:00
Paolo Borelli
7047099fd8 Win32: fold the gdkinput.c file in gdkdisplay-win32.c
This is similar to what is done in the X11 and wayland backends.
It also gets rid of the _gdk_input_devices global variable
2016-02-22 21:45:08 +01:00
Paolo Borelli
b3a80180c7 Win32: remove leftover function
gdk_devices_list was removed from the API in 3.0 and it is not
in the headers. The win32 implementation lingered on by mistake.
2016-02-22 21:45:08 +01:00
Paolo Borelli
7505d49741 Win32: free the monitors array 2016-02-19 15:49:29 +01:00
Paolo Borelli
3aec838313 Win32: chain up screen finalize
Add the proper chain up (in preparation to actually freeing stuff) and
remove the empty dispose implementation
2016-02-19 15:49:29 +01:00
Paolo Borelli
577016126e Win32: remove the _gdk_monitors global variable
Make it a field of GdkWin32Screen since that is the object exposing
all the the getters.
2016-02-19 15:28:38 +01:00
Paolo Borelli
2e7f98a683 Win32: remove the _is_win8_or_above global variable 2016-02-19 15:28:38 +01:00
Benjamin Otte
033fb5a879 win32: Always pass a window to the default event filters
This has to happen or the event filter cannot identify what type
of display the event is from (ie if it's an XEvent, a broadway
event or a win32 MSG.
2016-02-11 03:44:48 +01:00
Benjamin Otte
ec3ce21beb win32: Remove _gdk_display usge from dnd code 2016-02-11 03:44:47 +01:00
Benjamin Otte
7f266e1a03 win32: Make cursor code work without _gdk_display 2016-02-11 03:44:47 +01:00
Benjamin Otte
76e56c5038 win32: Stop using _gdk_display global in device code
Use gdk_device_get_display() instead.
2016-02-11 03:44:47 +01:00
Benjamin Otte
766b1b9886 win32: Remove deprecation warnings in dnd code 2016-02-11 03:44:46 +01:00
Benjamin Otte
4ce6d10601 win32: Remove deprecation warnings in devicemanager code 2016-02-11 03:44:46 +01:00
Benjamin Otte
584931e94d win32: Use g_set_object()
... instead of a hand-rolled version that does the same thing.
2016-02-11 03:44:46 +01:00
Benjamin Otte
788951c543 win32: Fix empty body warning 2016-02-11 03:44:46 +01:00
Ignacio Casal Quinteiro
eb555979db win32: properly handle show and focus
The first time a window is shown we should always call SW_SHOWNORMAL.
Understand whether to call SW_SHOW or SW_SHOWNORMAL and the specific
ones for the temporary windows depending on IsWindowVisible.
This also fixes the problem when calling gtk_window_present and
the window is snapped to the left or right of the screen.

This patch is based on the patches provided by Yevgen Muntyan
and Aleksander Morgado.

https://bugzilla.gnome.org/show_bug.cgi?id=698652
2016-02-08 13:25:01 +01:00
Yevgen Muntyan
07a994c89f win32: on focus restore the window if iconified
If the window is iconified we want to restore the window
to get the proper size instead of showing it normal which
would change the size of the window.

https://bugzilla.gnome.org/show_bug.cgi?id=698652
2016-02-08 12:58:58 +01:00
Ignacio Casal Quinteiro
05f1994808 win32 geometry: reorganize code to avoid prototypes 2016-01-23 14:43:57 +01:00
Ignacio Casal Quinteiro
3bb23ef2fe win32 device manager: reorganize code to avoid prototypes 2016-01-23 14:43:55 +01:00
Ignacio Casal Quinteiro
b3eaaa5a2c win32 virtual device: reorganize code to avoid prototypes 2016-01-23 14:43:52 +01:00
Ignacio Casal Quinteiro
36c3f21989 win32 device: reorganize code to avoid prototypes 2016-01-23 14:43:50 +01:00
Ignacio Casal Quinteiro
ca4ffbfe80 wintab: reorganize code to avoid prototypes 2016-01-23 14:43:47 +01:00
Руслан Ижбулатов
f74f81f06b W32: Detect ticks wraparound
https://bugzilla.gnome.org/show_bug.cgi?id=748327
2016-01-18 09:23:44 +00:00
Ignacio Casal Quinteiro
f6cc3be118 win32: get rid of _gdk_screen global variable
The screen is part of the display so it should be belong to it.
2016-01-15 12:35:31 +01:00
Ignacio Casal Quinteiro
ea7c509afd win32: fix warning 2016-01-15 11:56:01 +01:00
Руслан Ижбулатов
37bd22c3d9 GDK W32: Don't use WM-drawn shadow for tooltips
This prevents WM from drawing shadows around tooltip windows,
which, in Adwaita, should have no shadow and are CSD-ish (which means
that tooltip window is larger than it looks, and WM draws the shadow
only on the outside, leaving a gap between the visible tooltip edge and
the shadow).

https://bugzilla.gnome.org/show_bug.cgi?id=759898
2016-01-14 14:53:15 +00:00
Paolo Borelli
3cd79c11fc win32: remove _gdk_root global variable 2016-01-14 14:30:37 +01:00
Paolo Borelli
7f17468afc W32: avoid code duplication in gdkdevice-win32|virtual
The same get_position function is cut and pasted in the two
classes.
2015-12-22 09:31:56 +01:00
Paolo Borelli
8c355d8fe6 Win32: call dnd exit when finalizing the display
Since we init dnd when opening the display, call the corresponding
exit function (which is unused at the moment) when finalizing the
display.
2015-12-17 17:18:02 +01:00
Paolo Borelli
2e5616b27e Win32: move CoInitialize to dnd init
Functions requiring CoInitialize are called just in two places:
 - the filechooser thread which calls its own CoInitializeEx
 - the dnd code

Moving CoInitialize in the dnd specific init is cleaner and
we can pair it with the corresponding CoUninitialize since
CoUninitialize should be called as many times as CoInitialize.
Note that it is ok to call this function multiple times, so it
will not break if another codepath will need it in the future.

The patch also replaces the deprecated CoInitialize with the
equivalent call to CoInitializeEx (already used in the filechooser).
2015-12-17 17:18:01 +01:00
Carlos Garnacho
5d6a2ae54f win32: Use GdkSeatDefault to implement GdkSeat 2015-12-15 00:40:22 +01:00
Matthias Clasen
268c7a3e44 gdk: Allow passing the start coordinates in drag_begin
Add a variant of gdk_drag_begin that takes the start position
in addition to the device. All backend implementation have been
updated to accept (and ignore) the new arguments.

Subsequent commits will make use of the data in some backends.
2015-12-13 10:39:43 -05:00
Руслан Ижбулатов
3701a60401 GDK W32: Add a comment for clarity
This is a copy of a similar comment in another place, which explains
why WS_EX_TRANSPARENT windows get a special treatment.

https://bugzilla.gnome.org/show_bug.cgi?id=758484
2015-11-26 17:58:47 +00:00
Руслан Ижбулатов
8b7783ce21 GDK W32: Clarify the use of the second argument to SetWindowPos()
https://bugzilla.gnome.org/show_bug.cgi?id=758484
2015-11-26 17:58:46 +00:00
Руслан Ижбулатов
db1b24233e GDK W32: Don't use SetWindowLong() to set/unset WS_EX_TOPMOST
While searching for the cause of bug 746745 it was discovered that one could
not set WS_EX_TOPMOST extended window style with SetWindowLong(),
but must use SetWindowPos() for that purpose.

This was never a problem most likely because it is highly unlikely for windows
to acquire/lose WS_EX_TOPMOST after they are created, by means other
than SetWindowPos() (which GTK does use to raise/lower windows and
set/remove keep_above), and because trying to set/unset WS_EX_TOPMOST with
SetWindowLong() results in WS_EX_TOPMOST merely not being set/unset (that is,
other styles are still set/unset within the same call and no error is
signalled).

https://bugzilla.gnome.org/show_bug.cgi?id=758483
2015-11-26 16:26:32 +00:00
Руслан Ижбулатов
f407871b87 GDK W32: Only restack windows with matching always-on-top status
This prevents normal application windows (and other kinds of windows)
from being moved up in Z-order to be above windows that have the
always-on-top bit set. Doing so would make the previously-normal windows
in question also always-on-top implicitly.
Windows that are already always-on-top will be restacked on top of other
always-on-top windows too.

https://bugzilla.gnome.org/show_bug.cgi?id=746745
2015-11-22 03:20:10 +00:00
Руслан Ижбулатов
6b7951b219 GDK W32: Refactor restacking functions a bit 2015-11-22 03:18:43 +00:00
Ignacio Casal Quinteiro
d74a08b80f win32: do not use g_clear_pointer also on the clipboard window
A follow up on the previous patch. We should use DestroyWindow
directly since it has a different calling convention than
the expected callback for g_clear_pointer
2015-11-13 12:58:45 +01:00
Ignacio Casal Quinteiro
2ad243d43d win32: do not use g_clear_pointer to destroy the window
DestroyWindow expects a different calling convenction so
we endup getting an error at runtime
2015-11-13 12:57:53 +01:00
Ignacio Casal Quinteiro
1f5f3ca41b win32: destroy clipboard notification window on dispose
The clipboard uses a hidden window to get some specific events.
The window was created but never destroyed on dispose.
2015-11-12 17:09:25 +01:00
Ignacio Casal Quinteiro
79f7f19c6e win32: chain up on display dispose 2015-11-12 16:00:53 +01:00
Paolo Borelli
8606e57910 win32: handle WM_DISPLAYCHANGE globally
Instead of handling WM_DISPLAYCHANGE on every GdkWindow, only handle
it on an ad-hoc hidden window we create when opening the display.
This has two reasons:
1) we want emit the display::size-changed signal even if there are no
   gtk windows currently open
2) we want to emit the signal just once and not once for every window

https://bugzilla.gnome.org/show_bug.cgi?id=757324
2015-10-31 15:31:11 +01:00
Matthias Clasen
f703ea6599 win32: Fix introspection syntax 2015-10-22 11:50:49 -04:00
Matthias Clasen
364d1a574b Don't use g_slist_next in the windows backend
We generally use ->next directly.
2015-10-20 06:14:57 -04:00
Matthias Clasen
c860492359 Clean up handling of _gdk_win32_grab_cursor
This is a variable holding a ref to an object, so it is
a great case to use g_set_object and g_clear_object.

 # Please enter the commit message for your changes. Lines starting
2015-10-17 12:45:25 -04:00
Руслан Ижбулатов
00b39e4a82 W32: Add missing reference taking in gdk_device_virtual_grab()
https://bugzilla.gnome.org/show_bug.cgi?id=756160
2015-10-17 16:39:58 +00:00
Ignacio Casal Quinteiro
c888a927e7 win32: fix warnings about signed/unsigned mismatch 2015-10-16 09:22:39 +02:00
Ignacio Casal Quinteiro
342b620223 win32: use the same type as the prototype 2015-10-16 09:07:32 +02:00
Ignacio Casal Quinteiro
22b0ed6807 win32: use the same parameter name as the implementation 2015-10-08 18:07:49 +02:00
Alexander Larsson
9bda0532f8 gdk: Finish conversion to in-struct GdkWindow list nodes 2015-09-21 16:59:51 +02:00
Chun-wei Fan
6423a02c55 MSVC Builds: Massive Rename of Projects
We need to rename the projects so that when these projects are added
into an all-in-one solution file that will build the GTK+ 2/3 stack,
the names of the projects will not collide with the GTK+-2.x ones,
especially as GTK+-2.x and GTK+-3.x are done to co-exist on the same
system.  This is due to the case that the MSVC projects are directly
carried over from the GTK+-2.x ones and was then updated for 3.x.

We still need to update the GUIDs of the projects, so that they won't
conflict with the GTK+-2.x ones.
2015-09-15 18:51:33 +08:00
Chun-wei Fan
d836a52b68 build: Clean Up Visual Studio Project Generation
Use the common automake module from the previous commit in the
Makefile.am's, which means that the Makefile.am's in gdk/ and gtk/ can be
cleaned up as a result.  As a side effect, the property sheet that is used
to "install" the build results and headers can now be generated in terms of
the listing of headers to copy during 'make dist', where we can acquire
most of the list of headers to "install", so that we can largely avoid the
situation where the property sheet files are not updated in time for this,
causing missing headers when this build of GTK+ is being used.

Also use the Visual Studio Project file generation for the following
projects:
gtk3-demo
gtk3-demo-application
gtk3-icon-browser
gdk-win32
gdk-broadway
gail-util

So that the maintenace of these project files can be simplified as well.

https://bugzilla.gnome.org/show_bug.cgi?id=681965
2015-09-15 18:37:37 +08:00
Руслан Ижбулатов
4a26366ff2 GDK W32: Add missing commas 2015-08-14 12:12:01 +00:00
Matthias Clasen
b3fb1aefd8 win32: Support all css cursor names
Approximate some of the resize cursors with similar cursors.
2015-07-26 01:43:56 -04:00
Pavel Grunt
44608dadc6 gdk-win32: Send fake release key event for shift key
Windows does not send any release key event for one of the shift keys
when both shift keys were pressed together. This commit solves
the problem by sending the extra release key event for the shift key
which was released as first, when the other shift key is released.

Other modifiers (e.g. Ctrl, Alt) do not have this problem.

https://bugzilla.gnome.org/show_bug.cgi?id=751721
2015-07-23 17:52:01 +02:00
Руслан Ижбулатов
26c24328d5 GDK: Add cursor theme support to W32 backend
Load themed cursors from the same places they are loaded on freedesktop systems,
but use W32 API functions to do so (works for .cur/.ani cursors instead of X
cursors).

Refactor the code for cursor handling. Prefer loading cursors by name.

Do not load actual cursors when loading the theme. Find the files and remember
the arguments/calls for loading them instead. Keeping HCURSOR instance in the
hashmap would result in multiple GdkCursors using the same HCURSOR. Given that
we use DestroyCursor() to off them, this would cause problems (at the very
least - DestroyCursor() would fail).

Store GdkCursor instances in a cache. Update cached cursors when theme changes.

Recognize "system" theme as a special (and default) case. When it is set,
prefer system cursors and fall back to Adwaita cursors and (as a last resort)
built-in X cursors. Otherwise prefer theme cursors and fall back to system and
X cursors.

Force GTK to use "left_ptr" cursor when no cursor is set. Using NULL makes
it use the system default "arrow", which is not the intended behaviour when
a non-system theme is selected.

Ignore cursor size setting and query the OS for the required cursor size, as
Windows (almost) does not allow setting cursors of arbitrary size.

https://bugzilla.gnome.org/show_bug.cgi?id=749287
2015-05-20 08:42:24 +00:00
Руслан Ижбулатов
641fbd86d7 GDK: Use GdkCursor objects to keep track of W32 cursors, not HCURSOR
In particular this means that cursors are disposed of by the way of
g_object_unref(), not DestroyCursor (which is documented to not to be
used on certain kinds of cursors, and we can't tell which is which).

It should also alleviate any concerns about destroying cursors that
are still in use by other windows, except for cases where we would
somehow get our hands on a HCURSOR that someone else is using and we
make a GdkCursor out of it and later unref and finalize it while it
is still in use.

It also removes the need to call CopyCursor(), which makes animated
cursors into non-animated ones as a side-effect (supposed to be a bug,
but try explaining that to MS). Now cursors should be animated (if
the are set up as such in the OS).

https://bugzilla.gnome.org/show_bug.cgi?id=697477
2015-05-20 08:40:43 +00:00
Руслан Ижбулатов
4c06d08e2d W32: Add a mapping for "left_ptr_watch" cursor
This is purely to support gdk_cursor_new_from_name().
In particular, its counterpart, gdk_cursor_new_for_display(), will not
be affected, because there's no GDK_LEFT_PTR_WATCH cursor type,
and because i don't have a fallback cursor bitmask for gdk/win32/xcursors.h
2015-05-04 17:18:35 +00:00
Руслан Ижбулатов
79c863c595 Use GDK_KEY_KP_Decimal instead of GDK_KP_Decimal
Fixes the FTBFS introduced in 578043f97e
2015-05-04 15:32:22 +00:00
Matthias Clasen
578043f97e win32: Support the decimal point on the keypad
Based on a patch by John Emmas.
2015-05-01 07:03:49 -04:00
Chun-wei Fan
bbd1c6cefa gdkglcontext-win32.c: Remove Obsolete Comments
We now have proper checks for gdk_screen_is_composited() and a proper
implementation for gdk_screen_get_rgba_visual() for Windows, so we
can remove the comments in this file stating that they aren't
available for Windows.
2015-04-30 19:50:30 +08:00
Руслан Ижбулатов
cd54a54346 GDK-W32: remove trailing whitespace everywhere 2015-04-29 21:12:14 +00:00
Руслан Ижбулатов
5ed5d11632 W32: bump _WIN32_WINNT and WINVER to 0x600 (Vista)
Move gdkprivate-win32.h include to ensure that this change affects gdkevents-win32.c
2015-04-29 21:12:14 +00:00
Руслан Ижбулатов
d44921a152 Enable RGBA windows on W32
Requires Vista and newer.

* Create surfaces with cairo_win32_surface_create_with_format
* Provide an rgba visual that can be distinguished from the system visual
* Make rgba visual the best available visual
* Enable alpha-transparency for all windows that we control
* Check for appropriate cairo capabilities at configure time
  (W32 - 1.14.3 newer than 2015-04-14; others - 1.14.0)

* Check for composition support before enabling CSDs
* Re-enable transparency on WM_DWMCOMPOSITIONCHANGED
Windows that were created while composition was enabled and that were CSDed
as a result and will look ugly (thick black borders or no borders at all) once
composition is disabled.
If composition is enabled afterwards, they will return back to normal.
This happens, for example, when RDP session is opened to a desktop where a GTK
application is running. For W7/Vista windows will only re-gain transparency after
the RDP session is closed. For W8 transparency will only be gone momentarily.

Windows that were created while composition was disabled will not be CSDed
automatically and will use SSD (WM decorations), while windows that are CSDed
manually will get a thin square border.
If composition is enabled afterwards, these windows will not change.
This is most noticeable for system menus (popup menus are often generated
on the fly, system menus are created once) and some dialogues (About dialogue,
for example).

https://bugzilla.gnome.org/show_bug.cgi?id=727316
2015-04-29 21:12:13 +00:00
Fabiano Fidêncio
fea2e7bf35 gdkkeys: Add support to _get_scroll_lock_state()
GdkKeymap already has support for _get_num_lock_state() and
_get_caps_lock_state(). Adding _get_scroll_lock_state() would be good
for completness and some backends (Windows?) could take advantage of
this.
2015-04-27 20:07:52 -03:00
Jose Rostagno
7a6aee1db4 HAVE_MONITOR_INFO is always defined
https://bugzilla.gnome.org/show_bug.cgi?id=748156
2015-04-27 06:40:43 -04:00
Jose Rostagno
216e982603 drop old compat code, BITMAPV5HEADER is defined on vista+
https://bugzilla.gnome.org/show_bug.cgi?id=748156
2015-04-27 06:40:43 -04:00
Jose Rostagno
dcd5368252 WM_CLIPBOARDUPDATE is always define on vista+
https://msdn.microsoft.com/en-us/library/windows/desktop/ms649021%28v=vs.85%29.aspx

https://bugzilla.gnome.org/show_bug.cgi?id=748156
2015-04-27 06:40:43 -04:00
Jose Rostagno
bc1ac40d2a Simplify code a bit after xp support drop
https://bugzilla.gnome.org/show_bug.cgi?id=748156
2015-04-27 06:40:43 -04:00
Руслан Ижбулатов
c0e0a1508b W32: Support horizontal mouse wheel scrolling
https://bugzilla.gnome.org/show_bug.cgi?id=748014
2015-04-17 04:38:34 +00:00
Chun-wei Fan
bbac0eb3b9 gdk-win32: Clean Up A Bit
As GLib dropped Windows 2000 support some time ago [1][2], and the current
git master already depends on a GLib release that is well after it dropped
Windows 2000 support, clean up the code a bit as we are assured that the
code will run on XP and later, plus, we have dropped XP support during
this cycle with commit b85f0cc.

https://bugzilla.gnome.org/show_bug.cgi?id=741849

[1]: https://git.gnome.org/browse/glib/commit/?id=80c24d36f2525d83e458ebbdf62fdbd085945a02
[2]: https://git.gnome.org/browse/glib/commit/?id=731b46990896665a8107535080bb075a6e18b6f7
2015-04-17 11:32:16 +08:00
Chun-wei Fan
c6a8ead931 Revert "gdk-win32: Clean Up A Bit"
This reverts commit 24d3f3fcb2.

Sorry, I am going to re-commit this very shortly with a new
commit message, as I found the commit message to be quite
wrong and misleading.
2015-04-17 11:29:07 +08:00
Chun-wei Fan
b85f0ccc67 gdk-win32: Really Implement GdkScreen->is_composited()
The current GdkScreen->is_composited() is a stub as we were having Windows
XP being supported, which does not support Desktop Window Manager (DWM),
which is used by Windows for composition.

Windows Vista and later support DWM, and it is always enabled on Windows 8/
Server 2012 and later.

Please note that as we are dropping XP support in this cycle, this is the
commit that would say goodbye to Windows XP support for GTK+-3.x, by
linking directly to dwmapi.dll.  This means, we only check whether we are
on Windows 8 or Server 2012 (or later) to see whether we unconditionally
have composition enabled.

https://bugzilla.gnome.org/show_bug.cgi?id=741849
2015-04-17 11:23:53 +08:00