a set of buttons, rings and strips More...

#include <wayland-client-protocol-unstable.hpp>

Inheritance diagram for wayland::zwp_tablet_pad_v2_t:

Collaboration diagram for wayland::zwp_tablet_pad_v2_t:

Public Types
enum	wrapper_type { wrapper_type::standard, wrapper_type::display, wrapper_type::foreign, wrapper_type::proxy_wrapper }

Public Member Functions
void	set_feedback (uint32_t button, std::string description, uint32_t serial)
	set compositor feedback More...

std::function< void(zwp_tablet_pad_group_v2_t)> &	on_group ()
	group announced More...

std::function< void(std::string)> &	on_path ()
	path to the device More...

std::function< void(uint32_t)> &	on_buttons ()
	buttons announced More...

std::function< void()> &	on_done ()
	pad description event sequence complete More...

std::function< void(uint32_t, uint32_t, zwp_tablet_pad_v2_button_state)> &	on_button ()
	physical button state More...

std::function< void(uint32_t, zwp_tablet_v2_t, surface_t)> &	on_enter ()
	enter event More...

std::function< void(uint32_t, surface_t)> &	on_leave ()
	enter event More...

std::function< void()> &	on_removed ()
	pad removed event More...

uint32_t	get_id () const
	Get the id of a proxy object. More...

std::string	get_class () const
	Get the interface name (class) of a proxy object. More...

uint32_t	get_version () const
	Get the protocol object version of a proxy object. More...

wrapper_type	get_wrapper_type () const
	Get the type of a proxy object. More...

void	set_queue (event_queue_t queue)
	Assign a proxy to an event queue. More...

wl_proxy *	c_ptr () const
	Get a pointer to the underlying C struct. More...

bool	proxy_has_object () const
	Check whether this wrapper actually wraps an object. More...

	operator bool () const
	Check whether this wrapper actually wraps an object. More...

bool	operator== (const proxy_t &right) const
	Check whether two wrappers refer to the same object. More...

bool	operator!= (const proxy_t &right) const
	Check whether two wrappers refer to different objects. More...

void	proxy_release ()
	Release the wrapped object (if any), making this an empty wrapper. More...

Static Public Attributes
static constexpr std::uint32_t	set_feedback_since_version = 1
	Minimum protocol version required for the set_feedback function. More...

Detailed Description

a set of buttons, rings and strips

A pad device is a set of buttons, rings and strips usually physically present on the tablet device itself. Some exceptions exist where the pad device is physically detached, e.g. the Wacom ExpressKey Remote.

Pad devices have no axes that control the cursor and are generally auxiliary devices to the tool devices used on the tablet surface.

A pad device has a number of static characteristics, e.g. the number of rings. These capabilities are sent in an event sequence after the wp_tablet_seat.pad_added event before any actual events from this pad. This initial event sequence is terminated by a wp_tablet_pad.done event.

All pad features (buttons, rings and strips) are logically divided into groups and all pads have at least one group. The available groups are notified through the wp_tablet_pad.group event; the compositor will emit one event per group before emitting wp_tablet_pad.done.

Groups may have multiple modes. Modes allow clients to map multiple actions to a single pad feature. Only one mode can be active per group, although different groups may have different active modes.

Definition at line 5007 of file wayland-client-protocol-unstable.hpp.

Member Enumeration Documentation

◆ wrapper_type

enum wayland::proxy_t::wrapper_type

stronginherited

Underlying wl_proxy type and properties of a proxy_t that affect construction, destruction, and event handling

Enumerator
standard	C pointer is a standard type compatible with wl_proxy*. Events are dispatched and it is destructed when the proxy_t is destructed. User data is set.
display	C pointer is a wl_display*. No events are dispatched, wl_display_disconnect is called when the proxy_t is destructed. User data is set.
foreign	C pointer is a standard type compatible with wl_proxy*, but another library owns it and it should not be touched in a way that could affect the operation of the other library. No events are dispatched, wl_proxy_destroy is not called when the proxy_t is destructed, user data is not touched. Consequently, there is no reference counting for the proxy_t. Lifetime of such wrappers should preferably be short to minimize the chance that the owning library decides to destroy the wl_proxy.
proxy_wrapper	C pointer is a wl_proxy* that was constructed with wl_proxy_create_wrapper. No events are dispatched, wl_proxy_wrapper_destroy is called when the proxy_t is destroyed. Reference counting is active. A reference to the proxy_t creating this proxy wrapper is held to extend its lifetime until after the proxy wrapper is destroyed.

Definition at line 105 of file wayland-client.hpp.

Member Function Documentation

◆ c_ptr()

wl_proxy* wayland::proxy_t::c_ptr ( ) const

inherited

Get a pointer to the underlying C struct.

Returns: The underlying wl_proxy wrapped by this proxy_t if it exists, otherwise an exception is thrown

◆ get_class()

std::string wayland::proxy_t::get_class ( ) const

inherited

Get the interface name (class) of a proxy object.

Returns: The interface name of the object associated with the proxy

◆ get_id()

uint32_t wayland::proxy_t::get_id ( ) const

inherited

Get the id of a proxy object.

Returns: The id the object associated with the proxy

Examples: dump.cpp.

◆ get_version()

uint32_t wayland::proxy_t::get_version ( ) const

inherited

Get the protocol object version of a proxy object.

Gets the protocol object version of a proxy object, or 0 if the proxy was created with unversioned API.

A returned value of 0 means that no version information is available, so the caller must make safe assumptions about the object's real version.

display_t will always return version 0.

Returns: The protocol object version of the proxy or 0

◆ get_wrapper_type()

wrapper_type wayland::proxy_t::get_wrapper_type ( ) const

inlineinherited

Get the type of a proxy object.

Definition at line 288 of file wayland-client.hpp.

◆ on_button()

std::function< void(uint32_t, uint32_t, zwp_tablet_pad_v2_button_state)> & zwp_tablet_pad_v2_t::on_button ( )

physical button state

Parameters

time	the time of the event with millisecond granularity
button	the index of the button that changed state
state

Sent whenever the physical state of a button changes.

Definition at line 7472 of file wayland-client-protocol-unstable.cpp.

◆ on_buttons()

std::function< void(uint32_t)> & zwp_tablet_pad_v2_t::on_buttons ( )

buttons announced

Parameters

buttons the number of buttons

Sent on wp_tablet_pad initialization to announce the available buttons.

This event is sent in the initial burst of events before the wp_tablet_pad.done event. This event is only sent when at least one button is available.

Definition at line 7462 of file wayland-client-protocol-unstable.cpp.

◆ on_done()

std::function< void()> & zwp_tablet_pad_v2_t::on_done ( )

pad description event sequence complete

This event signals the end of the initial burst of descriptive events. A client may consider the static description of the pad to be complete and finalize initialization of the pad.

Definition at line 7467 of file wayland-client-protocol-unstable.cpp.

◆ on_enter()

std::function< void(uint32_t, zwp_tablet_v2_t, surface_t)> & zwp_tablet_pad_v2_t::on_enter ( )

enter event

Parameters

serial	serial number of the enter event
tablet	the tablet the pad is attached to
surface	surface the pad is focused on

Notification that this pad is focused on the specified surface.

Definition at line 7477 of file wayland-client-protocol-unstable.cpp.

◆ on_group()

std::function< void(zwp_tablet_pad_group_v2_t)> & zwp_tablet_pad_v2_t::on_group ( )

group announced

Parameters

pad_group

Sent on wp_tablet_pad initialization to announce available groups. One event is sent for each pad group available.

This event is sent in the initial burst of events before the wp_tablet_pad.done event. At least one group will be announced.

Definition at line 7452 of file wayland-client-protocol-unstable.cpp.

◆ on_leave()

std::function< void(uint32_t, surface_t)> & zwp_tablet_pad_v2_t::on_leave ( )

enter event

Parameters

serial	serial number of the leave event
surface	surface the pad is no longer focused on

Notification that this pad is no longer focused on the specified surface.

Definition at line 7482 of file wayland-client-protocol-unstable.cpp.

◆ on_path()

std::function< void(std::string)> & zwp_tablet_pad_v2_t::on_path ( )

path to the device

Parameters

path	path to local device

A system-specific device path that indicates which device is behind this wp_tablet_pad. This information may be used to gather additional information about the device, e.g. through libwacom.

The format of the path is unspecified, it may be a device node, a sysfs path, or some other identifier. It is up to the client to identify the string provided.

This event is sent in the initial burst of events before the wp_tablet_pad.done event.

Definition at line 7457 of file wayland-client-protocol-unstable.cpp.

◆ on_removed()

std::function< void()> & zwp_tablet_pad_v2_t::on_removed ( )

pad removed event

Sent when the pad has been removed from the system. When a tablet is removed its pad(s) will be removed too.

When this event is received, the client must destroy all rings, strips and groups that were offered by this pad, and issue wp_tablet_pad.destroy the pad itself.

Definition at line 7487 of file wayland-client-protocol-unstable.cpp.

◆ operator bool()

wayland::proxy_t::operator bool ( ) const

inherited

Check whether this wrapper actually wraps an object.

Returns: true if there is an underlying object, false if this wrapper is empty

◆ operator!=()

bool wayland::proxy_t::operator!= ( const proxy_t & right ) const

inherited

Check whether two wrappers refer to different objects.

◆ operator==()

bool wayland::proxy_t::operator== ( const proxy_t & right ) const

inherited

Check whether two wrappers refer to the same object.

◆ proxy_has_object()

bool wayland::proxy_t::proxy_has_object ( ) const

inherited

Check whether this wrapper actually wraps an object.

Returns: true if there is an underlying object, false if this wrapper is empty

◆ proxy_release()

void wayland::proxy_t::proxy_release ( )

inherited

Release the wrapped object (if any), making this an empty wrapper.

Note that display_t instances cannot be released this way. Attempts to do so are ignored.

Examples: foreign_display.cpp.

◆ set_feedback()

void zwp_tablet_pad_v2_t::set_feedback	(	uint32_t	button,
		std::string	description,
		uint32_t	serial
	)

set compositor feedback

Parameters

button	button index
description	button description
serial	serial of the mode switch event

Requests the compositor to use the provided feedback string associated with this button. This request should be issued immediately after a wp_tablet_pad_group.mode_switch event from the corresponding group is received, or whenever a button is mapped to a different action. See wp_tablet_pad_group.mode_switch for more details.

Clients are encouraged to provide context-aware descriptions for the actions associated with each button, and compositors may use this information to offer visual feedback on the button layout (e.g. on-screen displays).

Button indices start at 0. Setting the feedback string on a button that is reserved by the compositor (i.e. not belonging to any wp_tablet_pad_group) does not generate an error but the compositor is free to ignore the request.

The provided string 'description' is a UTF-8 encoded string to be associated with this ring, and is considered user-visible; general internationalization rules apply.

The serial argument will be that of the last wp_tablet_pad_group.mode_switch event received for the group of this button. Requests providing other serials than the most recent one will be ignored.

Definition at line 7447 of file wayland-client-protocol-unstable.cpp.

◆ set_queue()

void wayland::proxy_t::set_queue ( event_queue_t queue )

inherited

Assign a proxy to an event queue.

Parameters

queue The event queue that will handle this proxy

Assign proxy to event queue. Events coming from proxy will be queued in queue instead of the display's main queue.

Member Data Documentation

◆ set_feedback_since_version

constexpr std::uint32_t wayland::zwp_tablet_pad_v2_t::set_feedback_since_version = 1

staticconstexpr

Minimum protocol version required for the set_feedback function.

Definition at line 5072 of file wayland-client-protocol-unstable.hpp.

The documentation for this class was generated from the following files:

build/wayland-client-protocol-unstable.hpp
build/wayland-client-protocol-unstable.cpp

Public Types

Public Member Functions

Static Public Attributes

Detailed Description

Member Enumeration Documentation

◆ wrapper_type

Member Function Documentation

◆ c_ptr()

◆ get_class()

◆ get_id()

◆ get_version()

◆ get_wrapper_type()

◆ on_button()

◆ on_buttons()

◆ on_done()

◆ on_enter()

◆ on_group()

◆ on_leave()

◆ on_path()

◆ on_removed()

◆ operator bool()

◆ operator!=()

◆ operator==()

◆ proxy_has_object()

◆ proxy_release()

◆ set_feedback()

◆ set_queue()

Member Data Documentation

◆ set_feedback_since_version