123 lines
3.6 KiB
C
123 lines
3.6 KiB
C
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/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* pikadisplayshell-grab.c
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "display-types.h"
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#include "widgets/pikadevices.h"
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#include "pikadisplay.h"
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#include "pikadisplayshell.h"
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#include "pikadisplayshell-grab.h"
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static GdkDevice *
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get_associated_pointer (GdkDevice *device)
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{
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switch (gdk_device_get_device_type (device))
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{
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case GDK_DEVICE_TYPE_SLAVE:
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device = gdk_device_get_associated_device (device);
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break;
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case GDK_DEVICE_TYPE_FLOATING:
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{
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GdkDisplay *display = gdk_device_get_display (device);
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GdkSeat *seat = gdk_display_get_default_seat (display);
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return gdk_seat_get_pointer (seat);
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}
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break;
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default:
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break;
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}
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if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
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device = gdk_device_get_associated_device (device);
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return device;
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}
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gboolean
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pika_display_shell_pointer_grab (PikaDisplayShell *shell,
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const GdkEvent *event,
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GdkEventMask event_mask)
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{
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GdkDevice *device;
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GdkDevice *source_device;
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GdkGrabStatus status;
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g_return_val_if_fail (PIKA_IS_DISPLAY_SHELL (shell), FALSE);
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g_return_val_if_fail (event != NULL, FALSE);
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g_return_val_if_fail (shell->grab_pointer == NULL, FALSE);
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source_device = pika_devices_get_from_event (shell->display->pika,
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event, &device);
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if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
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{
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device = get_associated_pointer (device);
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source_device = NULL;
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}
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status = gdk_device_grab (device,
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gtk_widget_get_window (shell->canvas),
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GDK_OWNERSHIP_APPLICATION,
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FALSE, event_mask, NULL,
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gdk_event_get_time (event));
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if (status == GDK_GRAB_SUCCESS)
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{
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shell->grab_pointer = device;
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shell->grab_pointer_source = source_device;
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shell->grab_pointer_time = gdk_event_get_time (event);
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return TRUE;
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}
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g_printerr ("%s: gdk_device_grab(%s) failed with status %d\n",
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G_STRFUNC, gdk_device_get_name (device), status);
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return FALSE;
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}
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void
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pika_display_shell_pointer_ungrab (PikaDisplayShell *shell,
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const GdkEvent *event)
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{
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g_return_if_fail (PIKA_IS_DISPLAY_SHELL (shell));
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g_return_if_fail (event != NULL);
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g_return_if_fail (shell->grab_pointer != NULL);
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gdk_device_ungrab (shell->grab_pointer, shell->grab_pointer_time);
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shell->grab_pointer = NULL;
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shell->grab_pointer_source = NULL;
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shell->grab_pointer_time = 0;
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}
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