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gimp/app/widgets/gimpdevices.c

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/* The GIMP -- an 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 2 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "config.h"
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <gtk/gtk.h>
#include "libgimpcolor/gimpcolor.h"
#include "libgimpbase/gimpbase.h"
#include "widgets-types.h"
#include "core/gimp.h"
#include "core/gimpbrush.h"
#include "core/gimpcontainer.h"
#include "core/gimpdatafactory.h"
#include "core/gimpgradient.h"
#include "core/gimppattern.h"
#include "core/gimptoolinfo.h"
#include "gimpdeviceinfo.h"
#include "gimpdevices.h"
#include "gimprc.h"
#define GIMP_DEVICE_MANAGER_DATA_KEY "gimp-device-manager"
#define GIMP_DEVICE_MANAGER_DATA_KEY "gimp-device-manager"
typedef struct _GimpDeviceManager GimpDeviceManager;
struct _GimpDeviceManager
{
GList *device_info_list;
GdkDevice *current_device;
GimpDeviceChangeNotify change_notify;
};
/* local function prototypes */
static GimpDeviceManager * gimp_device_manager_get (Gimp *gimp);
/* public functions */
void
gimp_devices_init (Gimp *gimp,
GimpDeviceChangeNotify change_notify)
{
GimpDeviceManager *manager;
GdkDevice *device;
GimpDeviceInfo *device_info;
GList *list;
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (gimp_device_manager_get (gimp) == NULL);
manager = g_new0 (GimpDeviceManager, 1);
g_object_set_data_full (G_OBJECT (gimp),
GIMP_DEVICE_MANAGER_DATA_KEY, manager,
(GDestroyNotify) g_free);
manager->current_device = gdk_device_get_core_pointer ();
manager->change_notify = change_notify;
/* create device info structures for present devices */
for (list = gdk_devices_list (); list; list = g_list_next (list))
{
device = (GdkDevice *) list->data;
device_info = gimp_device_info_new (gimp, device->name);
manager->device_info_list = g_list_append (manager->device_info_list,
device_info);
gimp_device_info_set_from_device (device_info, device);
}
}
void
gimp_devices_exit (Gimp *gimp)
{
GimpDeviceManager *manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
manager = gimp_device_manager_get (gimp);
g_return_if_fail (manager != NULL);
g_list_foreach (manager->device_info_list, (GFunc) g_object_unref, NULL);
g_list_free (manager->device_info_list);
g_object_set_data (G_OBJECT (gimp), GIMP_DEVICE_MANAGER_DATA_KEY, NULL);
}
void
gimp_devices_restore (Gimp *gimp)
{
GimpDeviceManager *manager;
GimpDeviceInfo *device_info;
GimpContext *user_context;
gchar *filename;
g_return_if_fail (GIMP_IS_GIMP (gimp));
manager = gimp_device_manager_get (gimp);
g_return_if_fail (manager != NULL);
/* Augment with information from rc file */
filename = gimp_personal_rc_file ("devicerc");
gimprc_parse_file (filename);
g_free (filename);
device_info = gimp_device_info_get_by_device (manager->current_device);
g_return_if_fail (GIMP_IS_DEVICE_INFO (device_info));
user_context = gimp_get_user_context (gimp);
gimp_context_copy_properties (GIMP_CONTEXT (device_info), user_context,
GIMP_DEVICE_INFO_CONTEXT_MASK);
gimp_context_set_parent (GIMP_CONTEXT (device_info), user_context);
}
void
gimp_devices_save (Gimp *gimp)
{
GimpDeviceManager *manager;
gchar *filename;
FILE *fp;
g_return_if_fail (GIMP_IS_GIMP (gimp));
manager = gimp_device_manager_get (gimp);
g_return_if_fail (manager != NULL);
filename = gimp_personal_rc_file ("devicerc");
fp = fopen (filename, "wb");
if (fp)
{
g_list_foreach (manager->device_info_list,
(GFunc) gimp_device_info_save, fp);
fclose (fp);
}
else
{
g_warning ("%s: could not open \"%s\" for writing: %s",
G_STRLOC, filename, g_strerror (errno));
}
g_free (filename);
}
GdkDevice *
gimp_devices_get_current (Gimp *gimp)
{
GimpDeviceManager *manager;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
manager = gimp_device_manager_get (gimp);
g_return_val_if_fail (manager != NULL, NULL);
return manager->current_device;
}
void
gimp_devices_select_device (Gimp *gimp,
GdkDevice *new_device)
{
GimpDeviceManager *manager;
GimpDeviceInfo *current_device_info;
GimpDeviceInfo *new_device_info;
GimpContext *user_context;
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (GDK_IS_DEVICE (new_device));
manager = gimp_device_manager_get (gimp);
g_return_if_fail (manager != NULL);
current_device_info = gimp_device_info_get_by_device (manager->current_device);
new_device_info = gimp_device_info_get_by_device (new_device);
g_return_if_fail (GIMP_IS_DEVICE_INFO (current_device_info));
g_return_if_fail (GIMP_IS_DEVICE_INFO (new_device_info));
gimp_context_unset_parent (GIMP_CONTEXT (current_device_info));
manager->current_device = new_device;
user_context = gimp_get_user_context (gimp);
gimp_context_copy_properties (GIMP_CONTEXT (new_device_info), user_context,
GIMP_DEVICE_INFO_CONTEXT_MASK);
gimp_context_set_parent (GIMP_CONTEXT (new_device_info), user_context);
if (manager->change_notify)
manager->change_notify (gimp);
}
gboolean
gimp_devices_check_change (Gimp *gimp,
GdkEvent *event)
{
GimpDeviceManager *manager;
GdkDevice *device;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
manager = gimp_device_manager_get (gimp);
g_return_val_if_fail (manager != NULL, 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 = manager->current_device;
break;
}
if (device != manager->current_device)
{
gimp_devices_select_device (gimp, device);
return TRUE;
}
return FALSE;
}
void
gimp_devices_rc_update (Gimp *gimp,
const gchar *name,
GimpDeviceValues values,
GdkInputMode mode,
gint num_axes,
const GdkAxisUse *axes,
gint num_keys,
const GdkDeviceKey *keys,
const gchar *tool_name,
const GimpRGB *foreground,
const GimpRGB *background,
const gchar *brush_name,
const gchar *pattern_name,
const gchar *gradient_name)
{
GimpDeviceManager *manager;
GimpDeviceInfo *device_info = NULL;
GList *list;
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (name != NULL);
manager = gimp_device_manager_get (gimp);
g_return_if_fail (manager != NULL);
/* Find device if we have it */
for (list = manager->device_info_list; list; list = g_list_next (list))
{
if (! strcmp (GIMP_OBJECT (list->data)->name, name))
{
device_info = GIMP_DEVICE_INFO (list->data);
break;
}
}
if (! device_info)
{
device_info = gimp_device_info_new (gimp, name);
manager->device_info_list = g_list_append (manager->device_info_list,
device_info);
}
else if (! device_info->device)
{
g_warning ("%s: called multiple times for not present device",
G_STRLOC);
return;
}
gimp_device_info_set_from_rc (device_info,
values,
mode,
num_axes, axes,
num_keys, keys,
tool_name,
foreground, background,
brush_name,
pattern_name,
gradient_name);
}
/* private functions */
static GimpDeviceManager *
gimp_device_manager_get (Gimp *gimp)
{
return g_object_get_data (G_OBJECT (gimp), GIMP_DEVICE_MANAGER_DATA_KEY);
}
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