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https://gitlab.gnome.org/GNOME/gtk.git
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eacc9f5d05
Tue Sep 15 13:09:24 1998 Owen Taylor <otaylor@redhat.com> * gdk/gdkimage.c (gdk_image_new): Reverted global changes of g_new to malloc(), added back in the one place where it actually mattered. #include <stdlib.h>. * gdk/gdkrgb.c: g_malloc() to malloc() as above.
643 lines
17 KiB
C
643 lines
17 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef XINPUT_GXI
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/* #define DEBUG_SWITCHING */
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#include <gxid_lib.h>
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/* Forward declarations */
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static void gdk_input_gxi_select_notify (GdkDevicePrivate *gdkdev);
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static gint gdk_input_gxi_set_mode (guint32 deviceid, GdkInputMode mode);
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static gint gdk_input_is_extension_device (guint32 deviceid);
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static void gdk_input_gxi_configure_event (XConfigureEvent *xevent,
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GdkWindow *window);
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static void gdk_input_gxi_enter_event (XCrossingEvent *xevent,
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GdkWindow *window);
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static gint gdk_input_gxi_other_event (GdkEvent *event,
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XEvent *xevent,
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GdkWindow *window);
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static void gdk_input_gxi_update_device (GdkDevicePrivate *gdkdev);
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static gint gdk_input_gxi_window_none_event (GdkEvent *event, XEvent *xevent);
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static gint gdk_input_gxi_enable_window (GdkWindow *window,
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GdkDevicePrivate *gdkdev);
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static gint gdk_input_gxi_disable_window (GdkWindow *window,
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GdkDevicePrivate *gdkdev);
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static Window gdk_input_find_root_child(Display *dpy, Window w);
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static void gdk_input_compute_obscuring(GdkInputWindow *input_window);
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static gint gdk_input_is_obscured(GdkInputWindow *input_window, gdouble x,
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gdouble y);
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static GdkTimeCoord *gdk_input_gxi_motion_events (GdkWindow *window,
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guint32 deviceid,
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guint32 start,
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guint32 stop,
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gint *nevents_return);
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static void gdk_input_gxi_get_pointer (GdkWindow *window,
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guint32 deviceid,
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gdouble *x,
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gdouble *y,
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gdouble *pressure,
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gdouble *xtilt,
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gdouble *ytilt,
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GdkModifierType *mask);
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static gint gdk_input_gxi_grab_pointer (GdkWindow * window,
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gint owner_events,
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GdkEventMask event_mask,
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GdkWindow * confine_to,
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guint32 time);
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static void gdk_input_gxi_ungrab_pointer (guint32 time);
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/* Local variables */
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static GdkDevicePrivate *gdk_input_current_device;
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static GdkDevicePrivate *gdk_input_core_pointer;
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void
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gdk_input_init(void)
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{
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GList *tmp_list;
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gdk_input_vtable.set_mode = gdk_input_gxi_set_mode;
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gdk_input_vtable.set_axes = gdk_input_common_set_axes;
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gdk_input_vtable.set_key = gdk_input_common_set_key;
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gdk_input_vtable.motion_events = gdk_input_gxi_motion_events;
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gdk_input_vtable.get_pointer = gdk_input_gxi_get_pointer;
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gdk_input_vtable.grab_pointer = gdk_input_gxi_grab_pointer;
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gdk_input_vtable.ungrab_pointer = gdk_input_gxi_ungrab_pointer;
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gdk_input_vtable.configure_event = gdk_input_gxi_configure_event;
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gdk_input_vtable.enter_event = gdk_input_gxi_enter_event;
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gdk_input_vtable.other_event = gdk_input_gxi_other_event;
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gdk_input_vtable.window_none_event = gdk_input_gxi_window_none_event;
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gdk_input_vtable.enable_window = gdk_input_gxi_enable_window;
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gdk_input_vtable.disable_window = gdk_input_gxi_disable_window;
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gdk_input_ignore_core = FALSE;
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gdk_input_core_pointer = NULL;
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if (!gdk_input_gxid_host)
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{
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gdk_input_gxid_host = getenv("GXID_HOST");
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}
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if (!gdk_input_gxid_port)
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{
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char *t = getenv("GXID_PORT");
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if (t)
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gdk_input_gxid_port = atoi(t);
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}
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gdk_input_common_init(TRUE);
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/* find initial core pointer */
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for (tmp_list = gdk_input_devices; tmp_list; tmp_list = tmp_list->next)
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{
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GdkDevicePrivate *gdkdev = (GdkDevicePrivate *)tmp_list->data;
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if (gdk_input_is_extension_device(gdkdev->info.deviceid))
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{
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gdk_input_gxi_select_notify (gdkdev);
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}
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else
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{
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if (gdkdev->info.deviceid != GDK_CORE_POINTER)
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gdk_input_core_pointer = gdkdev;
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}
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}
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}
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static void
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gdk_input_gxi_select_notify (GdkDevicePrivate *gdkdev)
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{
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XEventClass class;
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ChangeDeviceNotify (gdkdev->xdevice, gdkdev->changenotify_type, class);
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XSelectExtensionEvent (gdk_display, gdk_root_window, &class, 1);
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}
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/* Set the core pointer. Device should already be enabled. */
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static gint
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gdk_input_gxi_set_core_pointer(GdkDevicePrivate *gdkdev)
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{
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int x_axis,y_axis;
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g_return_val_if_fail(gdkdev->xdevice,FALSE);
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x_axis = gdkdev->axis_for_use[GDK_AXIS_X];
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y_axis = gdkdev->axis_for_use[GDK_AXIS_Y];
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g_return_val_if_fail(x_axis != -1 && y_axis != -1,FALSE);
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/* core_pointer might not be up to date so we check with the server
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before change the pointer */
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if ( !gdk_input_is_extension_device(gdkdev->info.deviceid) )
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{
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#if 0
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if (gdkdev != gdk_input_core_pointer)
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g_warning("core pointer inconsistency");
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#endif
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return TRUE;
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}
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if ( XChangePointerDevice(gdk_display,gdkdev->xdevice, x_axis, y_axis)
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!= Success )
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{
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return FALSE;
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}
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else
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{
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gdk_input_gxi_update_device (gdk_input_core_pointer);
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gdk_input_core_pointer = gdkdev;
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return TRUE;
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}
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}
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/* FIXME, merge with gdk_input_xfree_set_mode */
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static gint
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gdk_input_gxi_set_mode (guint32 deviceid, GdkInputMode mode)
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{
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GList *tmp_list;
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GdkDevicePrivate *gdkdev;
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GdkInputMode old_mode;
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GdkInputWindow *input_window;
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gdkdev = gdk_input_find_device(deviceid);
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g_return_val_if_fail (gdkdev != NULL,FALSE);
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old_mode = gdkdev->info.mode;
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if (gdkdev->info.mode == mode)
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return TRUE;
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gdkdev->info.mode = mode;
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if (old_mode != GDK_MODE_DISABLED)
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{
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for (tmp_list = gdk_input_windows; tmp_list; tmp_list = tmp_list->next)
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{
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input_window = (GdkInputWindow *)tmp_list->data;
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if (input_window->mode != GDK_EXTENSION_EVENTS_CURSOR)
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gdk_input_disable_window (input_window->window, gdkdev);
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}
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}
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if (mode != GDK_MODE_DISABLED)
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{
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for (tmp_list = gdk_input_windows; tmp_list; tmp_list = tmp_list->next)
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{
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input_window = (GdkInputWindow *)tmp_list->data;
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if (input_window->mode != GDK_EXTENSION_EVENTS_CURSOR)
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if (!gdk_input_enable_window(input_window->window, gdkdev))
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{
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gdk_input_set_mode(deviceid, old_mode);
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return FALSE;
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}
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}
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}
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return TRUE;
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}
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gint
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gdk_input_is_extension_device (guint32 deviceid)
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{
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XDeviceInfo *devices;
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int num_devices, loop;
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if (deviceid == GDK_CORE_POINTER)
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return FALSE;
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devices = XListInputDevices(gdk_display, &num_devices);
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for(loop=0; loop<num_devices; loop++)
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{
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if ((devices[loop].id == deviceid) && (devices[loop].use == IsXExtensionDevice))
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{
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XFreeDeviceList(devices);
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return TRUE;
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}
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}
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XFreeDeviceList(devices);
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return FALSE;
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}
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static void
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gdk_input_gxi_configure_event (XConfigureEvent *xevent, GdkWindow *window)
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{
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GdkInputWindow *input_window;
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gint root_x, root_y;
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input_window = gdk_input_window_find(window);
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g_return_if_fail (input_window != NULL);
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gdk_input_get_root_relative_geometry(gdk_display,GDK_WINDOW_XWINDOW(window),
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&root_x, &root_y, NULL, NULL);
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input_window->root_x = root_x;
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input_window->root_y = root_y;
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gdk_input_compute_obscuring(input_window);
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}
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static void
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gdk_input_gxi_enter_event (XCrossingEvent *xevent, GdkWindow *window)
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{
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GdkInputWindow *input_window;
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input_window = gdk_input_window_find(window);
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g_return_if_fail (input_window != NULL);
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gdk_input_compute_obscuring(input_window);
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}
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static gint
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gdk_input_gxi_other_event (GdkEvent *event,
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XEvent *xevent,
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GdkWindow *window)
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{
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GdkInputWindow *input_window;
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GdkDevicePrivate *gdkdev;
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gint return_val;
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input_window = gdk_input_window_find(window);
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g_return_val_if_fail (window != NULL, -1);
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/* This is a sort of a hack, as there isn't any XDeviceAnyEvent -
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but it's potentially faster than scanning through the types of
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every device. If we were deceived, then it won't match any of
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the types for the device anyways */
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gdkdev = gdk_input_find_device(((XDeviceButtonEvent *)xevent)->deviceid);
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if (!gdkdev) {
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return -1; /* we don't handle it - not an XInput event */
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}
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if (gdkdev->info.mode == GDK_MODE_DISABLED ||
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input_window->mode == GDK_EXTENSION_EVENTS_CURSOR)
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return FALSE;
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if (gdkdev != gdk_input_current_device &&
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xevent->type != gdkdev->changenotify_type)
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{
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gdk_input_current_device = gdkdev;
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}
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return_val = gdk_input_common_other_event (event, xevent,
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input_window, gdkdev);
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if (return_val > 0 && event->type == GDK_MOTION_NOTIFY &&
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(!gdkdev->button_state) && (!input_window->grabbed) &&
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((event->motion.x < 0) || (event->motion.y < 0) ||
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(event->motion.x > ((GdkWindowPrivate *)window)->width) ||
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(event->motion.y > ((GdkWindowPrivate *)window)->height) ||
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gdk_input_is_obscured(input_window,event->motion.x,event->motion.y)))
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{
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#ifdef DEBUG_SWITCHING
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g_print("gdkinput: Setting core pointer to %d on motion at (%f,%f)\n",
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gdkdev->info.deviceid,event->motion.x,event->motion.y);
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g_print(" window geometry is: %dx%d\n",
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((GdkWindowPrivate *)window)->width,
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((GdkWindowPrivate *)window)->height);
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#endif
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gdk_input_gxi_set_core_pointer(gdkdev);
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return FALSE;
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}
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else
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return return_val;
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}
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static void
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gdk_input_gxi_update_device (GdkDevicePrivate *gdkdev)
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{
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GList *t;
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if (gdk_input_is_extension_device (gdkdev->info.deviceid))
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{
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if (!gdkdev->xdevice)
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{
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gdkdev->xdevice = XOpenDevice(gdk_display, gdkdev->info.deviceid);
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gdk_input_gxi_select_notify (gdkdev);
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gdkdev->needs_update = 1;
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}
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if (gdkdev->needs_update && gdkdev->xdevice)
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{
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for (t = gdk_input_windows; t; t = t->next)
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gdk_input_common_select_events (((GdkInputWindow *)t->data)->window,
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gdkdev);
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gdkdev->needs_update = 0;
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}
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}
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}
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static gint
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gdk_input_gxi_window_none_event (GdkEvent *event, XEvent *xevent)
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{
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GdkDevicePrivate *gdkdev =
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gdk_input_find_device(((XDeviceButtonEvent *)xevent)->deviceid);
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if (!gdkdev) {
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return -1; /* we don't handle it - not an XInput event */
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}
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if (xevent->type == gdkdev->changenotify_type)
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{
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if (gdk_input_core_pointer != gdkdev)
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{
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#ifdef DEBUG_SWITCHING
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g_print("ChangeNotify from %d to %d:\n",
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gdk_input_core_pointer->info.deviceid,
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gdkdev->info.deviceid);
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#endif
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gdk_input_gxi_update_device (gdk_input_core_pointer);
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gdk_input_core_pointer = gdkdev;
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}
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}
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return FALSE;
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}
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static gint
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gdk_input_gxi_enable_window (GdkWindow *window, GdkDevicePrivate *gdkdev)
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{
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GdkInputWindow *input_window;
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input_window = gdk_input_window_find (window);
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g_return_val_if_fail (input_window != NULL, FALSE);
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if (!gdkdev->claimed)
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{
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if (gxid_claim_device(gdk_input_gxid_host, gdk_input_gxid_port,
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gdkdev->info.deviceid,
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GDK_WINDOW_XWINDOW(window), FALSE) !=
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GXID_RETURN_OK)
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{
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g_warning("Could not get device (is gxid running?)\n");
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return FALSE;
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}
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gdkdev->claimed = TRUE;
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}
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if (gdkdev->xdevice && gdkdev != gdk_input_core_pointer)
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gdk_input_common_select_events(window, gdkdev);
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else
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gdkdev->needs_update = TRUE;
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return TRUE;
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}
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static gint
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gdk_input_gxi_disable_window(GdkWindow *window, GdkDevicePrivate *gdkdev)
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{
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GdkInputWindow *input_window;
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input_window = gdk_input_window_find (window);
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g_return_val_if_fail (input_window != NULL, FALSE);
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if (gdkdev->claimed)
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{
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gxid_release_device(gdk_input_gxid_host, gdk_input_gxid_port,
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gdkdev->info.deviceid,
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GDK_WINDOW_XWINDOW(window));
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gdkdev->claimed = FALSE;
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}
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if (gdkdev->xdevice && gdkdev != gdk_input_core_pointer)
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gdk_input_common_select_events(window, gdkdev);
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else
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gdkdev->needs_update = TRUE;
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return TRUE;
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}
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static gint
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gdk_input_is_obscured(GdkInputWindow *input_window, gdouble x, gdouble y)
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{
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int i;
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for (i=0;i<input_window->num_obscuring;i++)
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{
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GdkRectangle *rect = &input_window->obscuring[i];
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if ((x >= rect->x) &&
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(y >= rect->y) &&
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(x < rect->x + rect->width) &&
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(y < rect->y + rect->height))
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return TRUE;
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}
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return FALSE;
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}
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/* If this routine needs fixing, the corresponding routine
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in gxid.c will need it too. */
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static Window
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gdk_input_find_root_child(Display *dpy, Window w)
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{
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Window root,parent;
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Window *children;
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int nchildren;
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parent = w;
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do
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{
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w = parent;
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XQueryTree(dpy,w,&root,&parent,&children,&nchildren);
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if (children) XFree(children);
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}
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while (parent != root);
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return w;
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}
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void
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gdk_input_compute_obscuring(GdkInputWindow *input_window)
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{
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int i;
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int x,y,width,height;
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int xc,yc,widthc,heightc,border_widthc,depthc;
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Window root,parent;
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Window *children;
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int nchildren;
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Window w = GDK_WINDOW_XWINDOW(input_window->window);
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Window root_child = gdk_input_find_root_child(gdk_display,w);
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gdk_input_get_root_relative_geometry(gdk_display,w,&x,&y,&width,&height);
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input_window->root_x = x;
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input_window->root_y = y;
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XQueryTree(gdk_display,GDK_ROOT_WINDOW(),
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&root,&parent,&children,&nchildren);
|
|
|
|
|
|
if (input_window->obscuring)
|
|
g_free(input_window->obscuring);
|
|
input_window->obscuring = 0;
|
|
input_window->num_obscuring = 0;
|
|
|
|
for (i=0;i<nchildren;i++)
|
|
if (children[i] == root_child)
|
|
break;
|
|
|
|
if (i>=nchildren-1)
|
|
{
|
|
if (nchildren)
|
|
XFree(children);
|
|
return;
|
|
}
|
|
|
|
input_window->obscuring = g_new(GdkRectangle,(nchildren-i-1));
|
|
|
|
for (i=i+1;i<nchildren;i++)
|
|
{
|
|
int xmin, xmax, ymin, ymax;
|
|
XGetGeometry(gdk_display,children[i],&root,&xc,&yc,&widthc,&heightc,
|
|
&border_widthc, &depthc);
|
|
xmin = xc>x ? xc : x;
|
|
xmax = (xc+widthc)<(x+width) ? xc+widthc : x+width;
|
|
ymin = yc>y ? yc : y;
|
|
ymax = (yc+heightc)<(y+height) ? yc+heightc : y+height;
|
|
if ((xmin < xmax) && (ymin < ymax))
|
|
{
|
|
XWindowAttributes attributes;
|
|
XGetWindowAttributes(gdk_display,children[i],&attributes);
|
|
if (attributes.map_state == IsViewable)
|
|
{
|
|
GdkRectangle *rect = &input_window->obscuring[input_window->num_obscuring];
|
|
|
|
/* we store the whole window, not just the obscuring part */
|
|
rect->x = xc - x;
|
|
rect->y = yc - y;
|
|
rect->width = widthc;
|
|
rect->height = heightc;
|
|
input_window->num_obscuring++;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (nchildren)
|
|
XFree(children);
|
|
}
|
|
|
|
static void
|
|
gdk_input_gxi_get_pointer (GdkWindow *window,
|
|
guint32 deviceid,
|
|
gdouble *x,
|
|
gdouble *y,
|
|
gdouble *pressure,
|
|
gdouble *xtilt,
|
|
gdouble *ytilt,
|
|
GdkModifierType *mask)
|
|
{
|
|
GdkDevicePrivate *gdkdev;
|
|
|
|
gdkdev = gdk_input_find_device (deviceid);
|
|
g_return_if_fail (gdkdev != NULL);
|
|
|
|
if (gdkdev == gdk_input_core_pointer)
|
|
gdk_input_common_get_pointer (window, GDK_CORE_POINTER, x, y,
|
|
pressure, xtilt, ytilt, mask);
|
|
else
|
|
gdk_input_common_get_pointer (window, deviceid, x, y,
|
|
pressure, xtilt, ytilt, mask);
|
|
}
|
|
|
|
static GdkTimeCoord *
|
|
gdk_input_gxi_motion_events (GdkWindow *window,
|
|
guint32 deviceid,
|
|
guint32 start,
|
|
guint32 stop,
|
|
gint *nevents_return)
|
|
{
|
|
GdkDevicePrivate *gdkdev;
|
|
|
|
gdkdev = gdk_input_find_device (deviceid);
|
|
g_return_val_if_fail (gdkdev != NULL, NULL);
|
|
|
|
|
|
if (gdkdev == gdk_input_core_pointer)
|
|
return gdk_input_motion_events (window, GDK_CORE_POINTER, start, stop,
|
|
nevents_return);
|
|
else
|
|
return gdk_input_common_motion_events (window, deviceid, start, stop,
|
|
nevents_return);
|
|
|
|
}
|
|
|
|
static gint
|
|
gdk_input_gxi_grab_pointer (GdkWindow * window,
|
|
gint owner_events,
|
|
GdkEventMask event_mask,
|
|
GdkWindow * confine_to,
|
|
guint32 time)
|
|
{
|
|
GList *tmp_list;
|
|
GdkInputWindow *input_window;
|
|
GdkDevicePrivate *gdkdev;
|
|
|
|
tmp_list = gdk_input_windows;
|
|
while (tmp_list)
|
|
{
|
|
input_window = (GdkInputWindow *)tmp_list->data;
|
|
|
|
if (input_window->window == window)
|
|
input_window->grabbed = TRUE;
|
|
else if (input_window->grabbed)
|
|
input_window->grabbed = FALSE;
|
|
|
|
tmp_list = tmp_list->next;
|
|
}
|
|
|
|
tmp_list = gdk_input_devices;
|
|
while (tmp_list)
|
|
{
|
|
gdkdev = (GdkDevicePrivate *)tmp_list->data;
|
|
if (gdkdev->info.deviceid != GDK_CORE_POINTER &&
|
|
gdkdev->xdevice &&
|
|
(gdkdev->button_state != 0))
|
|
gdkdev->button_state = 0;
|
|
|
|
tmp_list = tmp_list->next;
|
|
}
|
|
|
|
return Success;
|
|
}
|
|
|
|
static void
|
|
gdk_input_gxi_ungrab_pointer (guint32 time)
|
|
{
|
|
GdkInputWindow *input_window;
|
|
GList *tmp_list;
|
|
|
|
tmp_list = gdk_input_windows;
|
|
while (tmp_list)
|
|
{
|
|
input_window = (GdkInputWindow *)tmp_list->data;
|
|
if (input_window->grabbed)
|
|
input_window->grabbed = FALSE;
|
|
tmp_list = tmp_list->next;
|
|
}
|
|
}
|
|
|
|
#endif /* XINPUT_GXI */
|