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/* GDK - The GIMP Drawing Kit
* Copyright (C) 2016 Red Hat
*
* 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, see <http://www.gnu.org/licenses/>.
*
* Author: Carlos Garnacho <carlosg@gnome.org>
*/
/**
* SECTION:gdkdevicepad
* @Short_description: Pad device interface
* @Title: GtkDevicePad
*
* #GdkDevicePad is an interface implemented by devices of type
* %GDK_SOURCE_TABLET_PAD, it allows querying the features provided
* by the pad device.
*
* Tablet pads may contain one or more groups, each containing a subset
* of the buttons/rings/strips available. gdk_device_pad_get_n_groups()
* can be used to obtain the number of groups, gdk_device_pad_get_n_features()
* and gdk_device_pad_get_feature_group() can be combined to find out the
* number of buttons/rings/strips the device has, and how are they grouped.
*
* Each of those groups have different modes, which may be used to map
* each individual pad feature to multiple actions. Only one mode is
* effective (current) for each given group, different groups may have
* different current modes. The number of available modes in a group can
* be found out through gdk_device_pad_get_group_n_modes(), and the current
* mode for a given group will be notified through the #GdkEventPadGroupMode
* event.
*
*/
/**
* GdkDevicePad:
*
* The GdkDevicePad struct contains only private fields and
* should not be accessed directly.
*/
#include "config.h"
#include "gdkdevicepad.h"
#include "gdkdevicepadprivate.h"
#include "gdkdeviceprivate.h"
G_DEFINE_INTERFACE (GdkDevicePad, gdk_device_pad, GDK_TYPE_DEVICE)
static void
gdk_device_pad_default_init (GdkDevicePadInterface *pad)
{
}
/**
* gdk_device_pad_get_n_groups:
* @pad: a #GdkDevicePad
*
* Returns the number of groups this pad device has. Pads have
* at least one group. A pad group is a subcollection of
* buttons/strip/rings that is affected collectively by a same
* current mode.
*
* Returns: The number of button/ring/strip groups in the pad.
*
* Since: 3.22
**/
gint
gdk_device_pad_get_n_groups (GdkDevicePad *pad)
{
GdkDevicePadInterface *iface = GDK_DEVICE_PAD_GET_IFACE (pad);
g_return_val_if_fail (GDK_IS_DEVICE_PAD (pad), 0);
return iface->get_n_groups (pad);
}
/**
* gdk_device_pad_get_group_n_modes:
* @pad: a #GdkDevicePad
* @group_idx: group to get the number of available modes from
*
* Returns the number of modes that @group may have.
*
* Returns: The number of modes available in @group.
*
* Since: 3.22
**/
gint
gdk_device_pad_get_group_n_modes (GdkDevicePad *pad,
gint group_idx)
{
GdkDevicePadInterface *iface = GDK_DEVICE_PAD_GET_IFACE (pad);
g_return_val_if_fail (GDK_IS_DEVICE_PAD (pad), 0);
g_return_val_if_fail (group_idx >= 0, 0);
return iface->get_group_n_modes (pad, group_idx);
}
/**
* gdk_device_pad_get_n_features:
* @pad: a #GdkDevicePad
* @feature: a pad feature
*
* Returns the number of features a tablet pad has.
*
* Returns: The amount of elements of type @feature that this pad has.
*
* Since: 3.22
**/
gint
gdk_device_pad_get_n_features (GdkDevicePad *pad,
GdkDevicePadFeature feature)
{
GdkDevicePadInterface *iface = GDK_DEVICE_PAD_GET_IFACE (pad);
g_return_val_if_fail (GDK_IS_DEVICE_PAD (pad), 0);
return iface->get_n_features (pad, feature);
}
/**
* gdk_device_pad_get_feature_group:
* @pad: a #GdkDevicePad
* @feature: the feature type to get the group from
* @feature_idx: the index of the feature to get the group from
*
* Returns the group the given @feature and @idx belong to,
* or -1 if feature/index do not exist in @pad.
*
* Returns: The group number of the queried pad feature.
*
* Since: 3.22
**/
gint
gdk_device_pad_get_feature_group (GdkDevicePad *pad,
GdkDevicePadFeature feature,
gint idx)
{
GdkDevicePadInterface *iface = GDK_DEVICE_PAD_GET_IFACE (pad);
g_return_val_if_fail (GDK_IS_DEVICE_PAD (pad), -1);
g_return_val_if_fail (idx >= 0, -1);
return iface->get_feature_group (pad, feature, idx);
}
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