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gimp/app/widgets/gimpdeviceinfo.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 <string.h>
#include <gtk/gtk.h>
#include "widgets-types.h"
#include "core/gimp.h"
#include "core/gimpcontainer.h"
#include "core/gimpdatafactory.h"
#include "core/gimpmarshal.h"
#include "config/gimpconfig-params.h"
#include "gimpdeviceinfo.h"
#define GIMP_DEVICE_INFO_DATA_KEY "gimp-device-info"
enum
{
CHANGED,
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_MODE,
PROP_AXES,
PROP_KEYS
};
/* local function prototypes */
static void gimp_device_info_class_init (GimpDeviceInfoClass *klass);
static void gimp_device_info_init (GimpDeviceInfo *device_info);
static GObject * gimp_device_info_constructor (GType type,
guint n_params,
GObjectConstructParam *params);
static void gimp_device_info_finalize (GObject *object);
static void gimp_device_info_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_device_info_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static GimpContextClass *parent_class = NULL;
static guint device_info_signals[LAST_SIGNAL] = { 0 };
GType
gimp_device_info_get_type (void)
{
static GType device_info_type = 0;
if (! device_info_type)
{
static const GTypeInfo device_info_info =
{
sizeof (GimpDeviceInfoClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_device_info_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpDeviceInfo),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_device_info_init,
};
device_info_type = g_type_register_static (GIMP_TYPE_CONTEXT,
"GimpDeviceInfo",
&device_info_info, 0);
}
return device_info_type;
}
static void
gimp_device_info_class_init (GimpDeviceInfoClass *klass)
{
GObjectClass *object_class;
GParamSpec *array_spec;
object_class = G_OBJECT_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
device_info_signals[CHANGED] =
g_signal_new ("changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpDeviceInfoClass, changed),
NULL, NULL,
gimp_marshal_VOID__VOID,
G_TYPE_NONE, 0);
object_class->constructor = gimp_device_info_constructor;
object_class->finalize = gimp_device_info_finalize;
object_class->set_property = gimp_device_info_set_property;
object_class->get_property = gimp_device_info_get_property;
GIMP_CONFIG_INSTALL_PROP_ENUM (object_class, PROP_MODE, "mode", NULL,
GDK_TYPE_INPUT_MODE,
GDK_MODE_DISABLED,
0);
array_spec = g_param_spec_value_array ("axes",
NULL, NULL,
g_param_spec_enum ("axis",
NULL, NULL,
GDK_TYPE_AXIS_USE,
GDK_AXIS_IGNORE,
G_PARAM_READWRITE),
GIMP_CONFIG_PARAM_FLAGS);
g_object_class_install_property (object_class, PROP_AXES, array_spec);
array_spec = g_param_spec_value_array ("keys",
NULL, NULL,
g_param_spec_string ("key",
NULL, NULL,
NULL,
G_PARAM_READWRITE),
GIMP_CONFIG_PARAM_FLAGS);
g_object_class_install_property (object_class, PROP_KEYS, array_spec);
}
static void
gimp_device_info_init (GimpDeviceInfo *device_info)
{
device_info->device = NULL;
device_info->mode = GDK_MODE_DISABLED;
device_info->num_axes = 0;
device_info->axes = NULL;
device_info->num_keys = 0;
device_info->keys = NULL;
}
static GObject *
gimp_device_info_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GObject *object;
Gimp *gimp;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
gimp = GIMP_CONTEXT (object)->gimp;
g_assert (GIMP_IS_GIMP (gimp));
gimp_context_define_properties (GIMP_CONTEXT (object),
GIMP_DEVICE_INFO_CONTEXT_MASK,
FALSE);
gimp_context_copy_properties (gimp_get_user_context (gimp),
GIMP_CONTEXT (object),
GIMP_DEVICE_INFO_CONTEXT_MASK);
/* FIXME: this is ugly and needs to be done via "notify" once
* the contexts' properties are dynamic.
*/
g_signal_connect (object, "foreground_changed",
G_CALLBACK (gimp_device_info_changed),
NULL);
g_signal_connect (object, "background_changed",
G_CALLBACK (gimp_device_info_changed),
NULL);
g_signal_connect (object, "tool_changed",
G_CALLBACK (gimp_device_info_changed),
NULL);
g_signal_connect (object, "brush_changed",
G_CALLBACK (gimp_device_info_changed),
NULL);
g_signal_connect (object, "pattern_changed",
G_CALLBACK (gimp_device_info_changed),
NULL);
g_signal_connect (object, "gradient_changed",
G_CALLBACK (gimp_device_info_changed),
NULL);
return object;
}
static void
gimp_device_info_finalize (GObject *object)
{
GimpDeviceInfo *device_info;
device_info = GIMP_DEVICE_INFO (object);
if (device_info->axes)
g_free (device_info->axes);
if (device_info->keys)
g_free (device_info->keys);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_device_info_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpDeviceInfo *device_info;
GdkDevice *device;
device_info = GIMP_DEVICE_INFO (object);
device = device_info->device;
switch (property_id)
{
case PROP_MODE:
if (device_info->device)
gdk_device_set_mode (device_info->device, g_value_get_enum (value));
else
device_info->mode = g_value_get_enum (value);
break;
case PROP_AXES:
{
GValueArray *array;
array = g_value_get_boxed (value);
if (array)
{
gint i;
gint n_device_values;
if (device)
{
n_device_values = MIN (array->n_values, device->num_axes);
}
else
{
n_device_values = array->n_values;
device_info->num_axes = n_device_values;
device_info->axes = g_new0 (GdkAxisUse, n_device_values);
}
for (i = 0; i < n_device_values; i++)
{
GdkAxisUse axis_use;
axis_use = g_value_get_enum (g_value_array_get_nth (array, i));
if (device)
gdk_device_set_axis_use (device, i, axis_use);
else
device_info->axes[i] = axis_use;
}
}
}
break;
case PROP_KEYS:
{
GValueArray *array;
array = g_value_get_boxed (value);
if (array)
{
gint i;
gint n_device_values;
if (device)
{
n_device_values = MIN (array->n_values, device->num_keys);
}
else
{
n_device_values = array->n_values;
device_info->num_keys = n_device_values;
device_info->keys = g_new0 (GdkDeviceKey, n_device_values);
}
for (i = 0; i < n_device_values; i++)
{
const gchar *accel;
guint keyval;
GdkModifierType modifiers;
accel = g_value_get_string (g_value_array_get_nth (array, i));
gtk_accelerator_parse (accel, &keyval, &modifiers);
if (device)
{
gdk_device_set_key (device, i, keyval, modifiers);
}
else
{
device_info->keys[i].keyval = keyval;
device_info->keys[i].modifiers = modifiers;
}
}
}
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_device_info_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpDeviceInfo *device_info;
GdkDevice *device;
device_info = GIMP_DEVICE_INFO (object);
device = device_info->device;
switch (property_id)
{
case PROP_MODE:
if (device)
g_value_set_enum (value, device->mode);
else
g_value_set_enum (value, device_info->mode);
break;
case PROP_AXES:
{
GValueArray *array;
GValue enum_value = { 0, };
gint i;
array = g_value_array_new (6);
g_value_init (&enum_value, GDK_TYPE_AXIS_USE);
for (i = 0; i < (device ? device->num_axes : device_info->num_axes); i++)
{
g_value_set_enum (&enum_value,
device ?
device->axes[i].use : device_info->axes[i]);
g_value_array_append (array, &enum_value);
}
g_value_unset (&enum_value);
g_value_set_boxed_take_ownership (value, array);
}
break;
case PROP_KEYS:
{
GValueArray *array;
GValue string_value = { 0, };
gint i;
array = g_value_array_new (32);
g_value_init (&string_value, G_TYPE_STRING);
for (i = 0; i < (device ? device->num_keys : device_info->num_keys); i++)
{
GdkModifierType modifiers = (device ? device->keys[i].modifiers :
device_info->keys[i].modifiers);
guint keyval = (device ? device->keys[i].keyval :
device_info->keys[i].keyval);
if (keyval)
{
/* FIXME: integrate this back with menus_install_accelerator */
gchar accel[64];
gchar t2[2];
gchar *escaped;
accel[0] = '\0';
if (modifiers & GDK_CONTROL_MASK)
strcat (accel, "<control>");
if (modifiers & GDK_SHIFT_MASK)
strcat (accel, "<shift>");
if (modifiers & GDK_MOD1_MASK)
strcat (accel, "<alt>");
t2[0] = keyval;
t2[1] = '\0';
strcat (accel, t2);
escaped = g_strescape (accel, NULL);
g_value_set_string (&string_value, escaped);
g_free (escaped);
}
else
{
g_value_set_string (&string_value, "");
}
g_value_array_append (array, &string_value);
}
g_value_unset (&string_value);
g_value_set_boxed_take_ownership (value, array);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
GimpDeviceInfo *
gimp_device_info_new (Gimp *gimp,
const gchar *name)
{
GimpDeviceInfo *device_info;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (name != NULL, NULL);
device_info = g_object_new (GIMP_TYPE_DEVICE_INFO,
"name", name,
"gimp", gimp,
NULL);
return device_info;
}
GimpDeviceInfo *
gimp_device_info_set_from_device (GimpDeviceInfo *device_info,
GdkDevice *device)
{
g_return_val_if_fail (GIMP_IS_DEVICE_INFO (device_info), NULL);
g_return_val_if_fail (GDK_IS_DEVICE (device), NULL);
g_object_set_data (G_OBJECT (device), GIMP_DEVICE_INFO_DATA_KEY, device_info);
device_info->device = device;
device_info->mode = device->mode;
device_info->num_axes = device->num_axes;
device_info->axes = NULL;
device_info->num_keys = device->num_keys;
device_info->keys = NULL;
return device_info;
}
void
gimp_device_info_changed (GimpDeviceInfo *device_info)
{
g_return_if_fail (GIMP_IS_DEVICE_INFO (device_info));
g_signal_emit (device_info, device_info_signals[CHANGED], 0);
}
GimpDeviceInfo *
gimp_device_info_get_by_device (GdkDevice *device)
{
g_return_val_if_fail (GDK_IS_DEVICE (device), NULL);
return g_object_get_data (G_OBJECT (device), GIMP_DEVICE_INFO_DATA_KEY);
}
void
gimp_device_info_changed_by_device (GdkDevice *device)
{
GimpDeviceInfo *device_info;
g_return_if_fail (GDK_IS_DEVICE (device));
device_info = g_object_get_data (G_OBJECT (device), GIMP_DEVICE_INFO_DATA_KEY);
if (device_info)
gimp_device_info_changed (device_info);
}
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