mirror of https://github.com/GNOME/gimp.git
295 lines
7.4 KiB
C
295 lines
7.4 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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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 2 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, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include "libgimpcolor/gimpcolor.h"
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#include "libgimpbase/gimpbase.h"
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#include "widgets-types.h"
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#include "core/gimp.h"
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#include "core/gimpdatafactory.h"
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#include "core/gimpgradient.h"
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#include "core/gimplist.h"
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#include "core/gimppattern.h"
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#include "core/gimptoolinfo.h"
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#include "config/gimpconfig.h"
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#include "gimpdeviceinfo.h"
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#include "gimpdevices.h"
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#define GIMP_DEVICE_MANAGER_DATA_KEY "gimp-device-manager"
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typedef struct _GimpDeviceManager GimpDeviceManager;
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struct _GimpDeviceManager
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{
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GimpContainer *device_info_list;
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GdkDevice *current_device;
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GimpDeviceChangeNotify change_notify;
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};
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/* local function prototypes */
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static GimpDeviceManager * gimp_device_manager_get (Gimp *gimp);
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/* public functions */
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void
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gimp_devices_init (Gimp *gimp,
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GimpDeviceChangeNotify change_notify)
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{
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GimpDeviceManager *manager;
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GdkDevice *device;
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GimpDeviceInfo *device_info;
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GList *list;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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g_return_if_fail (gimp_device_manager_get (gimp) == NULL);
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manager = g_new0 (GimpDeviceManager, 1);
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g_object_set_data_full (G_OBJECT (gimp),
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GIMP_DEVICE_MANAGER_DATA_KEY, manager,
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(GDestroyNotify) g_free);
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manager->device_info_list = gimp_list_new (GIMP_TYPE_DEVICE_INFO,
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GIMP_CONTAINER_POLICY_STRONG);
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manager->current_device = gdk_device_get_core_pointer ();
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manager->change_notify = change_notify;
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/* create device info structures for present devices */
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for (list = gdk_devices_list (); list; list = g_list_next (list))
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{
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device = (GdkDevice *) list->data;
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device_info = gimp_device_info_new (gimp, device->name);
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gimp_container_add (manager->device_info_list,
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GIMP_OBJECT (device_info));
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g_object_unref (device_info);
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gimp_device_info_set_from_device (device_info, device);
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}
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}
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void
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gimp_devices_exit (Gimp *gimp)
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{
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GimpDeviceManager *manager;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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manager = gimp_device_manager_get (gimp);
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g_return_if_fail (manager != NULL);
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g_object_unref (manager->device_info_list);
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g_object_set_data (G_OBJECT (gimp), GIMP_DEVICE_MANAGER_DATA_KEY, NULL);
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}
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void
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gimp_devices_restore (Gimp *gimp)
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{
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GimpDeviceManager *manager;
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GimpDeviceInfo *device_info;
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GimpContext *user_context;
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gchar *filename;
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GError *error = NULL;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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manager = gimp_device_manager_get (gimp);
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g_return_if_fail (manager != NULL);
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filename = gimp_personal_rc_file ("devicerc");
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if (! gimp_config_deserialize_file (G_OBJECT (manager->device_info_list),
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filename,
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gimp,
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&error))
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{
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if (error->code != GIMP_CONFIG_ERROR_OPEN_ENOENT)
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g_message (error->message);
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g_error_free (error);
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/* don't bail out here */
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}
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g_free (filename);
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gimp_list_reverse (GIMP_LIST (manager->device_info_list));
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device_info = gimp_device_info_get_by_device (manager->current_device);
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g_return_if_fail (GIMP_IS_DEVICE_INFO (device_info));
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user_context = gimp_get_user_context (gimp);
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gimp_context_copy_properties (GIMP_CONTEXT (device_info), user_context,
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GIMP_DEVICE_INFO_CONTEXT_MASK);
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gimp_context_set_parent (GIMP_CONTEXT (device_info), user_context);
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}
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void
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gimp_devices_save (Gimp *gimp)
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{
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GimpDeviceManager *manager;
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gchar *filename;
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GError *error = NULL;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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manager = gimp_device_manager_get (gimp);
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g_return_if_fail (manager != NULL);
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filename = gimp_personal_rc_file ("devicerc");
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if (! gimp_config_serialize_to_file (G_OBJECT (manager->device_info_list),
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filename,
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"GIMP devicerc",
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"end of devicerc",
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NULL,
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&error))
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{
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g_message (error->message);
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g_error_free (error);
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}
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g_free (filename);
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}
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GdkDevice *
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gimp_devices_get_current (Gimp *gimp)
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{
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GimpDeviceManager *manager;
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g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
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manager = gimp_device_manager_get (gimp);
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g_return_val_if_fail (manager != NULL, NULL);
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return manager->current_device;
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}
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void
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gimp_devices_select_device (Gimp *gimp,
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GdkDevice *new_device)
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{
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GimpDeviceManager *manager;
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GimpDeviceInfo *current_device_info;
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GimpDeviceInfo *new_device_info;
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GimpContext *user_context;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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g_return_if_fail (GDK_IS_DEVICE (new_device));
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manager = gimp_device_manager_get (gimp);
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g_return_if_fail (manager != NULL);
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current_device_info = gimp_device_info_get_by_device (manager->current_device);
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new_device_info = gimp_device_info_get_by_device (new_device);
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g_return_if_fail (GIMP_IS_DEVICE_INFO (current_device_info));
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g_return_if_fail (GIMP_IS_DEVICE_INFO (new_device_info));
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gimp_context_set_parent (GIMP_CONTEXT (current_device_info), NULL);
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manager->current_device = new_device;
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user_context = gimp_get_user_context (gimp);
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gimp_context_copy_properties (GIMP_CONTEXT (new_device_info), user_context,
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GIMP_DEVICE_INFO_CONTEXT_MASK);
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gimp_context_set_parent (GIMP_CONTEXT (new_device_info), user_context);
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if (manager->change_notify)
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manager->change_notify (gimp);
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}
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gboolean
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gimp_devices_check_change (Gimp *gimp,
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GdkEvent *event)
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{
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GimpDeviceManager *manager;
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GdkDevice *device;
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g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
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g_return_val_if_fail (event != NULL, FALSE);
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manager = gimp_device_manager_get (gimp);
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g_return_val_if_fail (manager != NULL, FALSE);
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switch (event->type)
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{
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case GDK_MOTION_NOTIFY:
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device = ((GdkEventMotion *) event)->device;
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break;
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case GDK_BUTTON_PRESS:
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case GDK_2BUTTON_PRESS:
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case GDK_3BUTTON_PRESS:
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case GDK_BUTTON_RELEASE:
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device = ((GdkEventButton *) event)->device;
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break;
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case GDK_PROXIMITY_IN:
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case GDK_PROXIMITY_OUT:
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device = ((GdkEventProximity *) event)->device;
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break;
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case GDK_SCROLL:
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device = ((GdkEventScroll *) event)->device;
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break;
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default:
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device = manager->current_device;
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break;
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}
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if (device != manager->current_device)
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{
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gimp_devices_select_device (gimp, device);
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return TRUE;
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}
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return FALSE;
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}
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/* private functions */
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static GimpDeviceManager *
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gimp_device_manager_get (Gimp *gimp)
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{
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return g_object_get_data (G_OBJECT (gimp), GIMP_DEVICE_MANAGER_DATA_KEY);
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}
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