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gimp/modules/controller_linux_input.c
Michael Natterer 6d63d50040 guarded the whole header with GIMP_ENABLE_CONTROLLER_UNDER_CONSTRUCTION 
2004-11-24  Michael Natterer  <mitch@gimp.org>

	* libgimpwidgets/gimpcontroller.[ch]: guarded the whole header
	with GIMP_ENABLE_CONTROLLER_UNDER_CONSTRUCTION because it's no
	fixed API yet. Added a "state" property bacause "name" was abused
	as the controller's state. Added "help_domain" to the controller
	class.

	* libgimpwidgets/gimpwidgets.h: don't include gimpcontroller.h

	* modules/controller_linux_input.c
	* modules/controller_midi.c: set the "name" property to the name
	retrieved from the device, or to a default string if no name is
	available. Store the status in the "state" property. Added and
	changed some strings, but it's better to have the controller
	strings untranslated than to have no tooltips at all or misleading
	labels.

	* app/widgets/gimpcontrollerkeyboard.c
	* app/widgets/gimpcontrollerwheel.c: set default strings for both.

	* app/widgets/gimpcontrollereditor.c: added a GUI for the "state"
	property.

	* app/widgets/gimpcontrollerkeyboard.h
	* app/widgets/gimpcontrollerwheel.h
	* app/widgets/gimpcontrollerinfo.c
	* app/widgets/gimpcontrollers.c: #define
	GIMP_ENABLE_CONTROLLER_UNDER_CONSTRUCTION (just as in all files
	above).

	* app/widgets/gimphelp-ids.h: added the IDs of all controller
	modules and also of all other modules. The defines are not
	actually used, but this file is the canonical place to collect all
	the core's help IDs.
2004-11-24 02:17:12 +00:00

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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* controller_linux_input.c
* Copyright (C) 2004 Sven Neumann <sven@gimp.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <linux/input.h>
#include <gtk/gtk.h>
#include "libgimpmodule/gimpmodule.h"
#include "libgimpwidgets/gimpwidgets.h"
#define GIMP_ENABLE_CONTROLLER_UNDER_CONSTRUCTION
#include "libgimpwidgets/gimpcontroller.h"
#include "libgimp/libgimp-intl.h"
typedef struct
{
guint16 code;
const gchar *name;
const gchar *blurb;
} LinuxInputEvent;
static const LinuxInputEvent key_events[] =
{
{ BTN_0, "button-0", N_("Button 0") },
{ BTN_1, "button-1", N_("Button 1") },
{ BTN_2, "button-2", N_("Button 2") },
{ BTN_3, "button-3", N_("Button 3") },
{ BTN_4, "button-4", N_("Button 4") },
{ BTN_5, "button-5", N_("Button 5") },
{ BTN_6, "button-6", N_("Button 6") },
{ BTN_7, "button-7", N_("Button 7") },
{ BTN_8, "button-8", N_("Button 8") },
{ BTN_9, "button-9", N_("Button 9") },
{ BTN_MOUSE, "button-mouse", N_("Button Mouse") },
{ BTN_LEFT, "button-left", N_("Button Left") },
{ BTN_RIGHT, "button-right", N_("Button Right") },
{ BTN_MIDDLE, "button-middle", N_("Button Middle") },
{ BTN_SIDE, "button-side", N_("Button Side") },
{ BTN_EXTRA, "button-extra", N_("Button Extra") },
{ BTN_FORWARD, "button-forward", N_("Button Forward") },
{ BTN_BACK, "button-back", N_("Button Forward") },
#ifdef BTN_WHEEL
{ BTN_WHEEL, "button-wheel", N_("Button Wheel") },
#endif
#ifdef BTN_GEAR_DOWN
{ BTN_GEAR_DOWN, "button-gear-down", N_("Button Gear Down") },
#endif
#ifdef BTN_GEAR_UP
{ BTN_GEAR_UP, "button-gear-up", N_("Button Gear Up") }
#endif
};
static const LinuxInputEvent rel_events[] =
{
{ REL_WHEEL, "wheel-turn-left", N_("Wheel Turn Left") },
{ REL_WHEEL, "wheel-turn-right", N_("Wheel Turn Right") },
{ REL_DIAL, "dial-turn-left", N_("Dial Turn Left") },
{ REL_DIAL, "dial-turn-right", N_("Dial Turn Right") },
};
enum
{
PROP_0,
PROP_DEVICE
};
#define CONTROLLER_TYPE_LINUX_INPUT (controller_type)
#define CONTROLLER_LINUX_INPUT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CONTROLLER_TYPE_LINUX_INPUT, ControllerLinuxInput))
#define CONTROLLER_LINUX_INPUT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CONTROLLER_TYPE_LINUX_INPUT, ControllerLinuxInputClass))
#define CONTROLLER_IS_LINUX_INPUT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CONTROLLER_TYPE_LINUX_INPUT))
#define CONTROLLER_IS_LINUX_INPUT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CONTROLLER_TYPE_LINUX_INPUT))
typedef struct _ControllerLinuxInput ControllerLinuxInput;
typedef struct _ControllerLinuxInputClass ControllerLinuxInputClass;
struct _ControllerLinuxInput
{
GimpController parent_instance;
gchar *device;
GIOChannel *io;
guint io_id;
};
struct _ControllerLinuxInputClass
{
GimpControllerClass parent_class;
};
GType linux_input_get_type (GTypeModule *module);
static void linux_input_class_init (ControllerLinuxInputClass *klass);
static void linux_input_dispose (GObject *object);
static void linux_input_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void linux_input_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static gint linux_input_get_n_events (GimpController *controller);
static const gchar * linux_input_get_event_name (GimpController *controller,
gint event_id);
static const gchar * linux_input_get_event_blurb (GimpController *controller,
gint event_id);
static gboolean linux_input_set_device (ControllerLinuxInput *controller,
const gchar *device);
static gboolean linux_input_read_event (GIOChannel *io,
GIOCondition cond,
gpointer data);
static const GimpModuleInfo linux_input_info =
{
GIMP_MODULE_ABI_VERSION,
N_("Linux input event controller"),
"Sven Neumann <sven@gimp.org>",
"v0.1",
"(c) 2004, released under the GPL",
"June 2004"
};
static GType controller_type = 0;
static GimpControllerClass *parent_class = NULL;
G_MODULE_EXPORT const GimpModuleInfo *
gimp_module_query (GTypeModule *module)
{
return &linux_input_info;
}
G_MODULE_EXPORT gboolean
gimp_module_register (GTypeModule *module)
{
linux_input_get_type (module);
return TRUE;
}
GType
linux_input_get_type (GTypeModule *module)
{
if (! controller_type)
{
static const GTypeInfo controller_info =
{
sizeof (ControllerLinuxInputClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) linux_input_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (ControllerLinuxInput),
0, /* n_preallocs */
NULL /* instance_init */
};
controller_type = g_type_module_register_type (module,
GIMP_TYPE_CONTROLLER,
"ControllerLinuxInput",
&controller_info, 0);
}
return controller_type;
}
static void
linux_input_class_init (ControllerLinuxInputClass *klass)
{
GimpControllerClass *controller_class = GIMP_CONTROLLER_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->dispose = linux_input_dispose;
object_class->get_property = linux_input_get_property;
object_class->set_property = linux_input_set_property;
g_object_class_install_property (object_class, PROP_DEVICE,
g_param_spec_string ("device",
_("Device:"),
_("The name of the device to read Linux Input events from."),
NULL,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
GIMP_MODULE_PARAM_SERIALIZE));
controller_class->name = _("Linux Input");
controller_class->help_id = "gimp-controller-linux-input";
controller_class->get_n_events = linux_input_get_n_events;
controller_class->get_event_name = linux_input_get_event_name;
controller_class->get_event_blurb = linux_input_get_event_blurb;
}
static void
linux_input_dispose (GObject *object)
{
ControllerLinuxInput *controller = CONTROLLER_LINUX_INPUT (object);
linux_input_set_device (controller, NULL);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
linux_input_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
ControllerLinuxInput *controller = CONTROLLER_LINUX_INPUT (object);
switch (property_id)
{
case PROP_DEVICE:
linux_input_set_device (controller, g_value_get_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
linux_input_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
ControllerLinuxInput *controller = CONTROLLER_LINUX_INPUT (object);
switch (property_id)
{
case PROP_DEVICE:
g_value_set_string (value, controller->device);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static gint
linux_input_get_n_events (GimpController *controller)
{
return G_N_ELEMENTS (key_events) + G_N_ELEMENTS (rel_events);
}
static const gchar *
linux_input_get_event_name (GimpController *controller,
gint event_id)
{
if (event_id < 0)
{
return NULL;
}
else if (event_id < G_N_ELEMENTS (key_events))
{
return key_events[event_id].name;
}
else if (event_id < linux_input_get_n_events (controller))
{
return rel_events[event_id - G_N_ELEMENTS (key_events)].name;
}
else
{
return NULL;
}
}
static const gchar *
linux_input_get_event_blurb (GimpController *controller,
gint event_id)
{
if (event_id < 0)
{
return NULL;
}
else if (event_id < G_N_ELEMENTS (key_events))
{
return gettext (key_events[event_id].blurb);
}
else if (event_id < linux_input_get_n_events (controller))
{
return gettext (rel_events[event_id - G_N_ELEMENTS (key_events)].blurb);
}
else
{
return NULL;
}
}
static gboolean
linux_input_set_device (ControllerLinuxInput *controller,
const gchar *device)
{
if (controller->io)
{
g_source_remove (controller->io_id);
controller->io_id = 0;
g_io_channel_unref (controller->io);
controller->io = NULL;
}
if (controller->device)
g_free (controller->device);
controller->device = g_strdup (device);
g_object_set (controller, "name", _("Linux Input Events"), NULL);
if (controller->device && strlen (controller->device))
{
gchar *state;
gint fd;
fd = open (controller->device, O_RDONLY);
if (fd >= 0)
{
gchar name[256];
name[0] = '\0';
if (ioctl (fd, EVIOCGNAME (sizeof (name)), name) == 0 &&
strlen (name) > 0 &&
g_utf8_validate (name, -1, NULL))
{
g_object_set (controller, "name", name, NULL);
}
state = g_strdup_printf (_("Reading from %s"), controller->device);
g_object_set (controller, "state", state, NULL);
g_free (state);
controller->io = g_io_channel_unix_new (fd);
g_io_channel_set_close_on_unref (controller->io, TRUE);
g_io_channel_set_encoding (controller->io, NULL, NULL);
controller->io_id = g_io_add_watch (controller->io,
G_IO_IN,
linux_input_read_event,
controller);
return TRUE;
}
else
{
state = g_strdup_printf (_("Device not available: %s"),
g_strerror (errno));
g_object_set (controller, "state", state, NULL);
g_free (state);
}
}
else
{
g_object_set (controller, "state", _("No device configured"), NULL);
}
return FALSE;
}
static gboolean
linux_input_read_event (GIOChannel *io,
GIOCondition cond,
gpointer data)
{
ControllerLinuxInput *input = CONTROLLER_LINUX_INPUT (data);
GIOStatus status;
GError *error = NULL;
struct input_event ev;
gsize n_bytes;
gint i;
status = g_io_channel_read_chars (io,
(gchar *) &ev,
sizeof (struct input_event), &n_bytes,
&error);
switch (status)
{
case G_IO_STATUS_ERROR:
case G_IO_STATUS_EOF:
g_source_remove (input->io_id);
input->io_id = 0;
g_io_channel_unref (input->io);
input->io = NULL;
if (error)
{
gchar *state = g_strdup_printf (_("Device not available: %s"),
error->message);
g_object_set (input, "state", state, NULL);
g_free (state);
g_clear_error (&error);
}
else
{
g_object_set (input, "state", _("End of file"), NULL);
}
return FALSE;
break;
case G_IO_STATUS_AGAIN:
return TRUE;
default:
break;
}
if (n_bytes == sizeof (struct input_event))
{
switch (ev.type)
{
case EV_KEY:
for (i = 0; i < G_N_ELEMENTS (key_events); i++)
if (ev.code == key_events[i].code)
{
GimpController *controller = GIMP_CONTROLLER (data);
GimpControllerEvent cevent;
cevent.any.type = GIMP_CONTROLLER_EVENT_TRIGGER;
cevent.any.source = GIMP_CONTROLLER (data);
cevent.any.event_id = i;
gimp_controller_event (controller, &cevent);
break;
}
break;
case EV_REL:
for (i = 0; i < G_N_ELEMENTS (rel_events); i++)
if (ev.code == rel_events[i].code)
{
GimpController *controller = GIMP_CONTROLLER (data);
GimpControllerEvent cevent;
gint count;
cevent.any.type = GIMP_CONTROLLER_EVENT_TRIGGER;
cevent.any.source = controller;
cevent.any.event_id = G_N_ELEMENTS (key_events) + i;
for (count = ev.value; count < 0; count++)
gimp_controller_event (controller, &cevent);
cevent.any.event_id++;
for (count = ev.value; count > 0; count--)
gimp_controller_event (controller, &cevent);
break;
}
break;
default:
break;
}
}
return TRUE;
}
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