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gimp/app/widgets/gimpdevices.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpcolor/gimpcolor.h"
#include "libgimpconfig/gimpconfig.h"
#include "libgimpbase/gimpbase.h"
#include "widgets-types.h"
#include "core/gimp.h"
#include "core/gimpdatafactory.h"
#include "core/gimperror.h"
#include "core/gimpgradient.h"
#include "core/gimplist.h"
#include "core/gimppattern.h"
#include "core/gimptoolinfo.h"
#include "gimpdeviceinfo.h"
#include "gimpdevicemanager.h"
#include "gimpdevices.h"
#include "gimp-intl.h"
#define GIMP_DEVICE_MANAGER_DATA_KEY "gimp-device-manager"
static gboolean devicerc_deleted = FALSE;
/* public functions */
void
gimp_devices_init (Gimp *gimp)
{
GimpDeviceManager *manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
manager = g_object_get_data (G_OBJECT (gimp), GIMP_DEVICE_MANAGER_DATA_KEY);
g_return_if_fail (manager == NULL);
manager = gimp_device_manager_new (gimp);
g_object_set_data_full (G_OBJECT (gimp),
GIMP_DEVICE_MANAGER_DATA_KEY, manager,
(GDestroyNotify) g_object_unref);
}
void
gimp_devices_exit (Gimp *gimp)
{
GimpDeviceManager *manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
manager = gimp_devices_get_manager (gimp);
g_return_if_fail (GIMP_IS_DEVICE_MANAGER (manager));
g_object_set_data (G_OBJECT (gimp), GIMP_DEVICE_MANAGER_DATA_KEY, NULL);
}
void
gimp_devices_restore (Gimp *gimp)
{
GimpDeviceManager *manager;
GimpContext *user_context;
GimpDeviceInfo *current_device;
GList *list;
GFile *file;
GError *error = NULL;
g_return_if_fail (GIMP_IS_GIMP (gimp));
manager = gimp_devices_get_manager (gimp);
g_return_if_fail (GIMP_IS_DEVICE_MANAGER (manager));
user_context = gimp_get_user_context (gimp);
for (list = GIMP_LIST (manager)->queue->head;
list;
list = g_list_next (list))
{
GimpDeviceInfo *device_info = list->data;
gimp_context_copy_properties (user_context, GIMP_CONTEXT (device_info),
GIMP_DEVICE_INFO_CONTEXT_MASK);
gimp_device_info_set_default_tool (device_info);
}
file = gimp_directory_file ("devicerc", NULL);
if (gimp->be_verbose)
g_print ("Parsing '%s'\n", gimp_file_get_utf8_name (file));
if (! gimp_config_deserialize_gfile (GIMP_CONFIG (manager),
file,
gimp,
&error))
{
if (error->code != GIMP_CONFIG_ERROR_OPEN_ENOENT)
gimp_message_literal (gimp, NULL, GIMP_MESSAGE_ERROR, error->message);
g_error_free (error);
/* don't bail out here */
}
g_object_unref (file);
current_device = gimp_device_manager_get_current_device (manager);
gimp_context_copy_properties (GIMP_CONTEXT (current_device), user_context,
GIMP_DEVICE_INFO_CONTEXT_MASK);
gimp_context_set_parent (GIMP_CONTEXT (current_device), user_context);
}
void
gimp_devices_save (Gimp *gimp,
gboolean always_save)
{
GimpDeviceManager *manager;
GFile *file;
GError *error = NULL;
g_return_if_fail (GIMP_IS_GIMP (gimp));
manager = gimp_devices_get_manager (gimp);
g_return_if_fail (GIMP_IS_DEVICE_MANAGER (manager));
if (devicerc_deleted && ! always_save)
return;
file = gimp_directory_file ("devicerc", NULL);
if (gimp->be_verbose)
g_print ("Writing '%s'\n", gimp_file_get_utf8_name (file));
if (! gimp_config_serialize_to_gfile (GIMP_CONFIG (manager),
file,
"GIMP devicerc",
"end of devicerc",
NULL,
&error))
{
gimp_message_literal (gimp, NULL, GIMP_MESSAGE_ERROR, error->message);
g_error_free (error);
}
g_object_unref (file);
devicerc_deleted = FALSE;
}
gboolean
gimp_devices_clear (Gimp *gimp,
GError **error)
{
GimpDeviceManager *manager;
GFile *file;
GError *my_error = NULL;
gboolean success = TRUE;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
manager = gimp_devices_get_manager (gimp);
g_return_val_if_fail (GIMP_IS_DEVICE_MANAGER (manager), FALSE);
file = gimp_directory_file ("devicerc", NULL);
if (! g_file_delete (file, NULL, &my_error) &&
my_error->code != G_IO_ERROR_NOT_FOUND)
{
success = FALSE;
g_set_error (error, GIMP_ERROR, GIMP_FAILED,
_("Deleting \"%s\" failed: %s"),
gimp_file_get_utf8_name (file), my_error->message);
}
else
{
devicerc_deleted = TRUE;
}
g_clear_error (&my_error);
g_object_unref (file);
return success;
}
GimpDeviceManager *
gimp_devices_get_manager (Gimp *gimp)
{
GimpDeviceManager *manager;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
manager = g_object_get_data (G_OBJECT (gimp), GIMP_DEVICE_MANAGER_DATA_KEY);
g_return_val_if_fail (GIMP_IS_DEVICE_MANAGER (manager), NULL);
return manager;
}
void
gimp_devices_add_widget (Gimp *gimp,
GtkWidget *widget)
{
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (GTK_IS_WIDGET (widget));
gtk_widget_set_extension_events (widget, GDK_EXTENSION_EVENTS_ALL);
g_signal_connect (widget, "motion-notify-event",
G_CALLBACK (gimp_devices_check_callback),
gimp);
}
gboolean
gimp_devices_check_callback (GtkWidget *widget,
GdkEvent *event,
Gimp *gimp)
{
g_return_val_if_fail (event != NULL, FALSE);
g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
if (! gimp->busy)
gimp_devices_check_change (gimp, event);
return FALSE;
}
gboolean
gimp_devices_check_change (Gimp *gimp,
GdkEvent *event)
{
GimpDeviceManager *manager;
GdkDevice *device;
GimpDeviceInfo *device_info;
GtkWidget *source;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
manager = gimp_devices_get_manager (gimp);
g_return_val_if_fail (GIMP_IS_DEVICE_MANAGER (manager), FALSE);
/* It is possible that the event was propagated from a widget that does not
want extension events and therefore always sends core pointer events.
This can cause a false switch to the core pointer device. */
source = gtk_get_event_widget (event);
if (source &&
gtk_widget_get_extension_events (source) == GDK_EXTENSION_EVENTS_NONE)
return FALSE;
switch (event->type)
{
case GDK_MOTION_NOTIFY:
device = ((GdkEventMotion *) event)->device;
break;
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
case GDK_BUTTON_RELEASE:
device = ((GdkEventButton *) event)->device;
break;
case GDK_PROXIMITY_IN:
case GDK_PROXIMITY_OUT:
device = ((GdkEventProximity *) event)->device;
break;
case GDK_SCROLL:
device = ((GdkEventScroll *) event)->device;
break;
default:
device = gimp_device_manager_get_current_device (manager)->device;
break;
}
device_info = gimp_device_info_get_by_device (device);
if (device_info != gimp_device_manager_get_current_device (manager))
{
gimp_device_manager_set_current_device (manager, device_info);
return TRUE;
}
return FALSE;
}
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