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gimp/app/widgets/gimpdeviceinfo.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 <string.h>
#undef GSEAL_ENABLE
#include <gtk/gtk.h>
#include "libgimpconfig/gimpconfig.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimp.h"
#include "core/gimpcontainer.h"
#include "core/gimpcurve.h"
#include "core/gimpcurve-map.h"
#include "core/gimpdatafactory.h"
#include "core/gimpmarshal.h"
#include "gimpdeviceinfo.h"
#define GIMP_DEVICE_INFO_DATA_KEY "gimp-device-info"
enum
{
CHANGED,
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_DEVICE,
PROP_DISPLAY,
PROP_MODE,
PROP_AXES,
PROP_KEYS,
PROP_PRESSURE_CURVE
};
/* local function prototypes */
static void gimp_device_info_constructed (GObject *object);
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 void gimp_device_info_guess_icon (GimpDeviceInfo *info);
G_DEFINE_TYPE (GimpDeviceInfo, gimp_device_info, GIMP_TYPE_CONTEXT)
#define parent_class gimp_device_info_parent_class
static guint device_info_signals[LAST_SIGNAL] = { 0 };
static void
gimp_device_info_class_init (GimpDeviceInfoClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpViewableClass *viewable_class = GIMP_VIEWABLE_CLASS (klass);
GParamSpec *param_spec;
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->constructed = gimp_device_info_constructed;
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;
viewable_class->default_stock_id = GIMP_STOCK_INPUT_DEVICE;
g_object_class_install_property (object_class, PROP_DEVICE,
g_param_spec_object ("device",
NULL, NULL,
GDK_TYPE_DEVICE,
GIMP_PARAM_STATIC_STRINGS |
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_DISPLAY,
g_param_spec_object ("display",
NULL, NULL,
GDK_TYPE_DISPLAY,
GIMP_PARAM_STATIC_STRINGS |
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
GIMP_CONFIG_INSTALL_PROP_ENUM (object_class, PROP_MODE, "mode", NULL,
GDK_TYPE_INPUT_MODE,
GDK_MODE_DISABLED,
GIMP_PARAM_STATIC_STRINGS);
param_spec = g_param_spec_enum ("axis",
NULL, NULL,
GDK_TYPE_AXIS_USE,
GDK_AXIS_IGNORE,
GIMP_PARAM_READWRITE);
g_object_class_install_property (object_class, PROP_AXES,
g_param_spec_value_array ("axes",
NULL, NULL,
param_spec,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_FLAGS));
param_spec = g_param_spec_string ("key",
NULL, NULL,
NULL,
GIMP_PARAM_READWRITE);
g_object_class_install_property (object_class, PROP_KEYS,
g_param_spec_value_array ("keys",
NULL, NULL,
param_spec,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_FLAGS));
GIMP_CONFIG_INSTALL_PROP_OBJECT (object_class, PROP_PRESSURE_CURVE,
"pressure-curve", NULL,
GIMP_TYPE_CURVE,
GIMP_CONFIG_PARAM_AGGREGATE);
}
static void
gimp_device_info_init (GimpDeviceInfo *info)
{
info->device = NULL;
info->display = NULL;
info->mode = GDK_MODE_DISABLED;
info->n_axes = 0;
info->axes = NULL;
info->n_keys = 0;
info->keys = NULL;
info->pressure_curve = GIMP_CURVE (gimp_curve_new ("pressure curve"));
g_signal_connect (info, "notify::name",
G_CALLBACK (gimp_device_info_guess_icon),
NULL);
}
static void
gimp_device_info_constructed (GObject *object)
{
GimpDeviceInfo *info = GIMP_DEVICE_INFO (object);
Gimp *gimp;
if (G_OBJECT_CLASS (parent_class)->constructed)
G_OBJECT_CLASS (parent_class)->constructed (object);
g_assert ((info->device == NULL && info->display == NULL) ||
(GDK_IS_DEVICE (info->device) && GDK_IS_DISPLAY (info->display)));
gimp = GIMP_CONTEXT (object)->gimp;
if (info->device)
{
g_object_set_data (G_OBJECT (info->device), GIMP_DEVICE_INFO_DATA_KEY,
info);
gimp_object_set_name (GIMP_OBJECT (info), info->device->name);
info->mode = info->device->mode;
info->n_axes = info->device->num_axes;
info->n_keys = info->device->num_keys;
}
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);
gimp_context_set_serialize_properties (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);
}
static void
gimp_device_info_finalize (GObject *object)
{
GimpDeviceInfo *info = GIMP_DEVICE_INFO (object);
if (info->axes)
{
g_free (info->axes);
info->axes = NULL;
}
if (info->keys)
{
g_free (info->keys);
info->keys = NULL;
}
if (info->pressure_curve)
{
g_object_unref (info->pressure_curve);
info->pressure_curve = NULL;
}
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 *info = GIMP_DEVICE_INFO (object);
GdkDevice *device = info->device;
GimpCurve *src_curve = NULL;
GimpCurve *dest_curve = NULL;
switch (property_id)
{
case PROP_DEVICE:
info->device = g_value_get_object (value);
break;
case PROP_DISPLAY:
info->display = g_value_get_object (value);
break;
case PROP_MODE:
gimp_device_info_set_mode (info, g_value_get_enum (value));
break;
case PROP_AXES:
{
GValueArray *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;
info->n_axes = n_device_values;
info->axes = g_renew (GdkAxisUse, info->axes, info->n_axes);
memset (info->axes, 0, info->n_axes * sizeof (GdkAxisUse));
}
for (i = 0; i < n_device_values; i++)
{
GdkAxisUse axis_use;
axis_use = g_value_get_enum (g_value_array_get_nth (array, i));
gimp_device_info_set_axis_use (info, i, axis_use);
}
}
}
break;
case PROP_KEYS:
{
GValueArray *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;
info->n_keys = n_device_values;
info->keys = g_renew (GdkDeviceKey, info->keys, info->n_keys);
memset (info->keys, 0, info->n_keys * sizeof (GdkDeviceKey));
}
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);
gimp_device_info_set_key (info, i, keyval, modifiers);
}
}
}
break;
case PROP_PRESSURE_CURVE:
src_curve = g_value_get_object (value);
dest_curve = info->pressure_curve;
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
if (src_curve && dest_curve)
{
gimp_config_copy (GIMP_CONFIG (src_curve),
GIMP_CONFIG (dest_curve),
GIMP_CONFIG_PARAM_SERIALIZE);
}
}
static void
gimp_device_info_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpDeviceInfo *info = GIMP_DEVICE_INFO (object);
switch (property_id)
{
case PROP_DEVICE:
g_value_set_object (value, info->device);
break;
case PROP_DISPLAY:
g_value_set_object (value, info->display);
break;
case PROP_MODE:
g_value_set_enum (value, gimp_device_info_get_mode (info));
break;
case PROP_AXES:
{
GValueArray *array;
GValue enum_value = { 0, };
gint n_axes;
gint i;
array = g_value_array_new (6);
g_value_init (&enum_value, GDK_TYPE_AXIS_USE);
n_axes = gimp_device_info_get_n_axes (info);
for (i = 0; i < n_axes; i++)
{
g_value_set_enum (&enum_value,
gimp_device_info_get_axis_use (info, i));
g_value_array_append (array, &enum_value);
}
g_value_unset (&enum_value);
g_value_take_boxed (value, array);
}
break;
case PROP_KEYS:
{
GValueArray *array;
GValue string_value = { 0, };
gint n_keys;
gint i;
array = g_value_array_new (32);
g_value_init (&string_value, G_TYPE_STRING);
n_keys = gimp_device_info_get_n_keys (info);
for (i = 0; i < n_keys; i++)
{
guint keyval;
GdkModifierType modifiers;
gimp_device_info_get_key (info, i, &keyval, &modifiers);
if (keyval)
{
gchar *accel;
gchar *escaped;
accel = gtk_accelerator_name (keyval, modifiers);
escaped = g_strescape (accel, NULL);
g_free (accel);
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_take_boxed (value, array);
}
break;
case PROP_PRESSURE_CURVE:
g_value_set_object (value, info->pressure_curve);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_device_info_guess_icon (GimpDeviceInfo *info)
{
GimpViewable *viewable = GIMP_VIEWABLE (info);
if (gimp_object_get_name (viewable) &&
! strcmp (gimp_viewable_get_stock_id (viewable),
GIMP_VIEWABLE_GET_CLASS (viewable)->default_stock_id))
{
const gchar *stock_id = NULL;
gchar *down = g_ascii_strdown (gimp_object_get_name (viewable),
-1);
if (strstr (down, "eraser"))
{
stock_id = GIMP_STOCK_TOOL_ERASER;
}
else if (strstr (down, "pen"))
{
stock_id = GIMP_STOCK_TOOL_PAINTBRUSH;
}
else if (strstr (down, "airbrush"))
{
stock_id = GIMP_STOCK_TOOL_AIRBRUSH;
}
else if (strstr (down, "cursor") ||
strstr (down, "mouse") ||
strstr (down, "pointer") ||
strstr (down, "touchpad") ||
strstr (down, "trackpoint"))
{
stock_id = GIMP_STOCK_CURSOR;
}
g_free (down);
if (stock_id)
gimp_viewable_set_stock_id (viewable, stock_id);
}
}
/* public functions */
GimpDeviceInfo *
gimp_device_info_new (Gimp *gimp,
GdkDevice *device,
GdkDisplay *display)
{
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (GDK_IS_DEVICE (device), NULL);
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return g_object_new (GIMP_TYPE_DEVICE_INFO,
"gimp", gimp,
"device", device,
"display", display,
NULL);
}
GdkDevice *
gimp_device_info_get_device (GimpDeviceInfo *info,
GdkDisplay **display)
{
g_return_val_if_fail (GIMP_IS_DEVICE_INFO (info), NULL);
if (display)
*display = info->display;
return info->device;
}
void
gimp_device_info_set_device (GimpDeviceInfo *info,
GdkDevice *device,
GdkDisplay *display)
{
gint i;
g_return_if_fail (GIMP_IS_DEVICE_INFO (info));
g_return_if_fail ((device == NULL && display == NULL) ||
(GDK_IS_DEVICE (device) && GDK_IS_DISPLAY (display)));
g_return_if_fail ((info->device == NULL && GDK_IS_DEVICE (device)) ||
(GDK_IS_DEVICE (info->device) && device == NULL));
g_return_if_fail (device == NULL ||
strcmp (device->name,
gimp_object_get_name (info)) == 0);
if (device)
{
info->device = device;
info->display = display;
g_object_set_data (G_OBJECT (device), GIMP_DEVICE_INFO_DATA_KEY, info);
gimp_device_info_set_mode (info, info->mode);
if (info->n_axes != device->num_axes)
g_printerr ("%s: stored 'num-axes' for device '%s' doesn't match "
"number of axes present in device\n",
G_STRFUNC, device->name);
for (i = 0; i < MIN (info->n_axes, device->num_axes); i++)
gimp_device_info_set_axis_use (info, i,
info->axes[i]);
if (info->n_keys != device->num_keys)
g_printerr ("%s: stored 'num-keys' for device '%s' doesn't match "
"number of keys present in device\n",
G_STRFUNC, device->name);
for (i = 0; i < MIN (info->n_keys, device->num_keys); i++)
gimp_device_info_set_key (info, i,
info->keys[i].keyval,
info->keys[i].modifiers);
}
else
{
device = info->device;
display = info->display;
info->device = NULL;
info->display = NULL;
g_object_set_data (G_OBJECT (device), GIMP_DEVICE_INFO_DATA_KEY, NULL);
gimp_device_info_set_mode (info, device->mode);
info->n_axes = device->num_axes;
info->axes = g_renew (GdkAxisUse, info->axes, info->n_axes);
memset (info->axes, 0, info->n_axes * sizeof (GdkAxisUse));
for (i = 0; i < device->num_axes; i++)
gimp_device_info_set_axis_use (info, i,
device->axes[i].use);
info->n_keys = device->num_keys;
info->keys = g_renew (GdkDeviceKey, info->keys, info->n_keys);
memset (info->keys, 0, info->n_keys * sizeof (GdkDeviceKey));
for (i = 0; i < MIN (info->n_keys, device->num_keys); i++)
gimp_device_info_set_key (info, i,
device->keys[i].keyval,
device->keys[i].modifiers);
}
/* sort order depends on device presence */
gimp_object_name_changed (GIMP_OBJECT (info));
g_object_notify (G_OBJECT (info), "device");
gimp_device_info_changed (info);
}
GdkInputMode
gimp_device_info_get_mode (GimpDeviceInfo *info)
{
g_return_val_if_fail (GIMP_IS_DEVICE_INFO (info), GDK_MODE_DISABLED);
if (info->device)
return info->device->mode;
else
return info->mode;
}
void
gimp_device_info_set_mode (GimpDeviceInfo *info,
GdkInputMode mode)
{
g_return_if_fail (GIMP_IS_DEVICE_INFO (info));
if (mode != gimp_device_info_get_mode (info))
{
if (info->device)
gdk_device_set_mode (info->device, mode);
else
info->mode = mode;
g_object_notify (G_OBJECT (info), "mode");
gimp_device_info_changed (info);
}
}
gboolean
gimp_device_info_has_cursor (GimpDeviceInfo *info)
{
g_return_val_if_fail (GIMP_IS_DEVICE_INFO (info), FALSE);
if (info->device)
return info->device->has_cursor;
return FALSE;
}
gint
gimp_device_info_get_n_axes (GimpDeviceInfo *info)
{
g_return_val_if_fail (GIMP_IS_DEVICE_INFO (info), 0);
if (info->device)
return info->device->num_axes;
else
return info->n_axes;
}
GdkAxisUse
gimp_device_info_get_axis_use (GimpDeviceInfo *info,
gint axis)
{
g_return_val_if_fail (GIMP_IS_DEVICE_INFO (info), GDK_AXIS_IGNORE);
g_return_val_if_fail (axis >= 0 && axis < gimp_device_info_get_n_axes (info),
GDK_AXIS_IGNORE);
if (info->device)
return info->device->axes[axis].use;
else
return info->axes[axis];
}
void
gimp_device_info_set_axis_use (GimpDeviceInfo *info,
gint axis,
GdkAxisUse use)
{
g_return_if_fail (GIMP_IS_DEVICE_INFO (info));
g_return_if_fail (axis >= 0 && axis < gimp_device_info_get_n_axes (info));
if (use != gimp_device_info_get_axis_use (info, axis))
{
if (info->device)
gdk_device_set_axis_use (info->device, axis, use);
else
info->axes[axis] = use;
g_object_notify (G_OBJECT (info), "axes");
}
}
gint
gimp_device_info_get_n_keys (GimpDeviceInfo *info)
{
g_return_val_if_fail (GIMP_IS_DEVICE_INFO (info), 0);
if (info->device)
return info->device->num_keys;
else
return info->n_keys;
}
void
gimp_device_info_get_key (GimpDeviceInfo *info,
gint key,
guint *keyval,
GdkModifierType *modifiers)
{
g_return_if_fail (GIMP_IS_DEVICE_INFO (info));
g_return_if_fail (key >= 0 && key < gimp_device_info_get_n_keys (info));
g_return_if_fail (keyval != NULL);
g_return_if_fail (modifiers != NULL);
if (info->device)
{
*keyval = info->device->keys[key].keyval;
*modifiers = info->device->keys[key].modifiers;
}
else
{
*keyval = info->keys[key].keyval;
*modifiers = info->keys[key].modifiers;
}
}
void
gimp_device_info_set_key (GimpDeviceInfo *info,
gint key,
guint keyval,
GdkModifierType modifiers)
{
guint old_keyval;
GdkModifierType old_modifiers;
g_return_if_fail (GIMP_IS_DEVICE_INFO (info));
g_return_if_fail (key >= 0 && key < gimp_device_info_get_n_keys (info));
gimp_device_info_get_key (info, key, &old_keyval, &old_modifiers);
if (keyval != old_keyval ||
modifiers != old_modifiers)
{
if (info->device)
{
gdk_device_set_key (info->device, key, keyval, modifiers);
}
else
{
info->keys[key].keyval = keyval;
info->keys[key].modifiers = modifiers;
}
g_object_notify (G_OBJECT (info), "keys");
}
}
GimpCurve *
gimp_device_info_get_curve (GimpDeviceInfo *info,
GdkAxisUse use)
{
g_return_val_if_fail (GIMP_IS_DEVICE_INFO (info), NULL);
switch (use)
{
case GDK_AXIS_PRESSURE:
return info->pressure_curve;
break;
default:
return NULL;
}
}
gdouble
gimp_device_info_map_axis (GimpDeviceInfo *info,
GdkAxisUse use,
gdouble value)
{
g_return_val_if_fail (GIMP_IS_DEVICE_INFO (info), value);
/* CLAMP() the return values be safe against buggy XInput drivers */
switch (use)
{
case GDK_AXIS_PRESSURE:
return gimp_curve_map_value (info->pressure_curve, value);
case GDK_AXIS_XTILT:
return CLAMP (value, GIMP_COORDS_MIN_TILT, GIMP_COORDS_MAX_TILT);
case GDK_AXIS_YTILT:
return CLAMP (value, GIMP_COORDS_MIN_TILT, GIMP_COORDS_MAX_TILT);
case GDK_AXIS_WHEEL:
return CLAMP (value, GIMP_COORDS_MIN_WHEEL, GIMP_COORDS_MAX_WHEEL);
default:
break;
}
return value;
}
void
gimp_device_info_changed (GimpDeviceInfo *info)
{
g_return_if_fail (GIMP_IS_DEVICE_INFO (info));
g_signal_emit (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);
}
gint
gimp_device_info_compare (GimpDeviceInfo *a,
GimpDeviceInfo *b)
{
if (a->device && a->display &&
a->device == gdk_display_get_core_pointer (a->display))
{
return -1;
}
else if (b->device && b->display &&
b->device == gdk_display_get_core_pointer (b->display))
{
return 1;
}
else if (a->device && ! b->device)
{
return -1;
}
else if (! a->device && b->device)
{
return 1;
}
else
{
return gimp_object_name_collate ((GimpObject *) a,
(GimpObject *) b);
}
}
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