gtk4/auto/

gesture_stylus.rs

// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use crate::{EventController, Gesture, GestureSingle, PropagationLimit, PropagationPhase, ffi};
use glib::{
    object::ObjectType as _,
    prelude::*,
    signal::{SignalHandlerId, connect_raw},
    translate::*,
};
use std::boxed::Box as Box_;

glib::wrapper! {
    /// Recognizes tablet stylus input.
    ///
    /// The provided signals just relay the basic information of the
    /// stylus events.
    ///
    /// ## Properties
    ///
    ///
    /// #### `stylus-only`
    ///  If this gesture should exclusively react to stylus input devices.
    ///
    /// Readable | Writeable | Construct
    /// <details><summary><h4>GestureSingle</h4></summary>
    ///
    ///
    /// #### `button`
    ///  Mouse button number to listen to, or 0 to listen for any button.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `exclusive`
    ///  Whether the gesture is exclusive.
    ///
    /// Exclusive gestures only listen to pointer and pointer emulated events.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `touch-only`
    ///  Whether the gesture handles only touch events.
    ///
    /// Readable | Writeable
    /// </details>
    /// <details><summary><h4>Gesture</h4></summary>
    ///
    ///
    /// #### `n-points`
    ///  The number of touch points that trigger
    /// recognition on this gesture.
    ///
    /// Readable | Writeable | Construct Only
    /// </details>
    /// <details><summary><h4>EventController</h4></summary>
    ///
    ///
    /// #### `name`
    ///  The name for this controller, typically used for debugging purposes.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `propagation-limit`
    ///  The limit for which events this controller will handle.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `propagation-phase`
    ///  The propagation phase at which this controller will handle events.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `widget`
    ///  The widget receiving the `GdkEvents` that the controller will handle.
    ///
    /// Readable
    /// </details>
    ///
    /// ## Signals
    ///
    ///
    /// #### `down`
    ///  Emitted when the stylus touches the device.
    ///
    ///
    ///
    ///
    /// #### `motion`
    ///  Emitted when the stylus moves while touching the device.
    ///
    ///
    ///
    ///
    /// #### `proximity`
    ///  Emitted when the stylus is in proximity of the device.
    ///
    ///
    ///
    ///
    /// #### `up`
    ///  Emitted when the stylus no longer touches the device.
    ///
    ///
    /// <details><summary><h4>Gesture</h4></summary>
    ///
    ///
    /// #### `begin`
    ///  Emitted when the gesture is recognized.
    ///
    /// This means the number of touch sequences matches
    /// [`n-points`][struct@crate::Gesture#n-points].
    ///
    /// Note: These conditions may also happen when an extra touch
    /// (eg. a third touch on a 2-touches gesture) is lifted, in that
    /// situation @sequence won't pertain to the current set of active
    /// touches, so don't rely on this being true.
    ///
    ///
    ///
    ///
    /// #### `cancel`
    ///  Emitted whenever a sequence is cancelled.
    ///
    /// This usually happens on active touches when
    /// [`EventControllerExt::reset()`][crate::prelude::EventControllerExt::reset()] is called on @gesture
    /// (manually, due to grabs...), or the individual @sequence
    /// was claimed by parent widgets' controllers (see
    /// [`GestureExt::set_sequence_state()`][crate::prelude::GestureExt::set_sequence_state()]).
    ///
    /// @gesture must forget everything about @sequence as in
    /// response to this signal.
    ///
    ///
    ///
    ///
    /// #### `end`
    ///  Emitted when @gesture either stopped recognizing the event
    /// sequences as something to be handled, or the number of touch
    /// sequences became higher or lower than [`n-points`][struct@crate::Gesture#n-points].
    ///
    /// Note: @sequence might not pertain to the group of sequences that
    /// were previously triggering recognition on @gesture (ie. a just
    /// pressed touch sequence that exceeds [`n-points`][struct@crate::Gesture#n-points]).
    /// This situation may be detected by checking through
    /// [`GestureExt::handles_sequence()`][crate::prelude::GestureExt::handles_sequence()].
    ///
    ///
    ///
    ///
    /// #### `sequence-state-changed`
    ///  Emitted whenever a sequence state changes.
    ///
    /// See [`GestureExt::set_sequence_state()`][crate::prelude::GestureExt::set_sequence_state()] to know
    /// more about the expectable sequence lifetimes.
    ///
    ///
    ///
    ///
    /// #### `update`
    ///  Emitted whenever an event is handled while the gesture is recognized.
    ///
    /// @sequence is guaranteed to pertain to the set of active touches.
    ///
    ///
    /// </details>
    ///
    /// # Implements
    ///
    /// [`GestureSingleExt`][trait@crate::prelude::GestureSingleExt], [`GestureExt`][trait@crate::prelude::GestureExt], [`EventControllerExt`][trait@crate::prelude::EventControllerExt], [`trait@glib::ObjectExt`], [`EventControllerExtManual`][trait@crate::prelude::EventControllerExtManual]
    #[doc(alias = "GtkGestureStylus")]
    pub struct GestureStylus(Object<ffi::GtkGestureStylus, ffi::GtkGestureStylusClass>) @extends GestureSingle, Gesture, EventController;

    match fn {
        type_ => || ffi::gtk_gesture_stylus_get_type(),
    }
}

impl GestureStylus {
    /// Creates a new [`GestureStylus`][crate::GestureStylus].
    ///
    /// # Returns
    ///
    /// a newly created stylus gesture
    #[doc(alias = "gtk_gesture_stylus_new")]
    pub fn new() -> GestureStylus {
        assert_initialized_main_thread!();
        unsafe { Gesture::from_glib_full(ffi::gtk_gesture_stylus_new()).unsafe_cast() }
    }

    // rustdoc-stripper-ignore-next
    /// Creates a new builder-pattern struct instance to construct [`GestureStylus`] objects.
    ///
    /// This method returns an instance of [`GestureStylusBuilder`](crate::builders::GestureStylusBuilder) which can be used to create [`GestureStylus`] objects.
    pub fn builder() -> GestureStylusBuilder {
        GestureStylusBuilder::new()
    }

    /// Returns the current value for the requested @axis.
    ///
    /// This function must be called from the handler of one of the
    /// [`down`][struct@crate::GestureStylus#down], [`motion`][struct@crate::GestureStylus#motion],
    /// [`up`][struct@crate::GestureStylus#up] or [`proximity`][struct@crate::GestureStylus#proximity]
    /// signals.
    /// ## `axis`
    /// requested device axis
    ///
    /// # Returns
    ///
    /// [`true`] if there is a current value for the axis
    ///
    /// ## `value`
    /// return location for the axis value
    #[doc(alias = "gtk_gesture_stylus_get_axis")]
    #[doc(alias = "get_axis")]
    pub fn axis(&self, axis: gdk::AxisUse) -> Option<f64> {
        unsafe {
            let mut value = std::mem::MaybeUninit::uninit();
            let ret = from_glib(ffi::gtk_gesture_stylus_get_axis(
                self.to_glib_none().0,
                axis.into_glib(),
                value.as_mut_ptr(),
            ));
            if ret { Some(value.assume_init()) } else { None }
        }
    }

    /// Returns the accumulated backlog of tracking information.
    ///
    /// By default, GTK will limit rate of input events. On stylus input
    /// where accuracy of strokes is paramount, this function returns the
    /// accumulated coordinate/timing state before the emission of the
    /// current [Gtk.GestureStylus::motion] signal.
    ///
    /// This function may only be called within a [`motion`][struct@crate::GestureStylus#motion]
    /// signal handler, the state given in this signal and obtainable through
    /// [`axis()`][Self::axis()] express the latest (most up-to-date)
    /// state in motion history.
    ///
    /// The @backlog is provided in chronological order.
    ///
    /// # Returns
    ///
    /// [`true`] if there is a backlog to unfold in the current state.
    ///
    /// ## `backlog`
    /// coordinates and times for the backlog events
    #[doc(alias = "gtk_gesture_stylus_get_backlog")]
    #[doc(alias = "get_backlog")]
    pub fn backlog(&self) -> Option<Vec<gdk::TimeCoord>> {
        unsafe {
            let mut backlog = std::ptr::null_mut();
            let mut n_elems = std::mem::MaybeUninit::uninit();
            let ret = from_glib(ffi::gtk_gesture_stylus_get_backlog(
                self.to_glib_none().0,
                &mut backlog,
                n_elems.as_mut_ptr(),
            ));
            if ret {
                Some(FromGlibContainer::from_glib_full_num(
                    backlog,
                    n_elems.assume_init() as _,
                ))
            } else {
                None
            }
        }
    }

    /// Returns the [`gdk::DeviceTool`][crate::gdk::DeviceTool] currently driving input through this gesture.
    ///
    /// This function must be called from the handler of one of the
    /// [`down`][struct@crate::GestureStylus#down], [`motion`][struct@crate::GestureStylus#motion],
    /// [`up`][struct@crate::GestureStylus#up] or [`proximity`][struct@crate::GestureStylus#proximity]
    /// signals.
    ///
    /// # Returns
    ///
    /// The current stylus tool
    #[doc(alias = "gtk_gesture_stylus_get_device_tool")]
    #[doc(alias = "get_device_tool")]
    pub fn device_tool(&self) -> Option<gdk::DeviceTool> {
        unsafe {
            from_glib_none(ffi::gtk_gesture_stylus_get_device_tool(
                self.to_glib_none().0,
            ))
        }
    }

    /// Checks whether the gesture is for styluses only.
    ///
    /// Stylus-only gestures will signal events exclusively from stylus
    /// input devices.
    ///
    /// # Returns
    ///
    /// [`true`] if the gesture is only for stylus events
    #[cfg(feature = "v4_10")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_10")))]
    #[doc(alias = "gtk_gesture_stylus_get_stylus_only")]
    #[doc(alias = "get_stylus_only")]
    #[doc(alias = "stylus-only")]
    pub fn is_stylus_only(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_gesture_stylus_get_stylus_only(
                self.to_glib_none().0,
            ))
        }
    }

    /// Sets the state of stylus-only
    ///
    /// If true, the gesture will exclusively handle events from stylus input devices,
    /// otherwise it'll handle events from any pointing device.
    /// ## `stylus_only`
    /// whether the gesture is used exclusively for stylus events
    #[cfg(feature = "v4_10")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_10")))]
    #[doc(alias = "gtk_gesture_stylus_set_stylus_only")]
    #[doc(alias = "stylus-only")]
    pub fn set_stylus_only(&self, stylus_only: bool) {
        unsafe {
            ffi::gtk_gesture_stylus_set_stylus_only(self.to_glib_none().0, stylus_only.into_glib());
        }
    }

    /// Emitted when the stylus touches the device.
    /// ## `x`
    /// the X coordinate of the stylus event
    /// ## `y`
    /// the Y coordinate of the stylus event
    #[doc(alias = "down")]
    pub fn connect_down<F: Fn(&Self, f64, f64) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn down_trampoline<F: Fn(&GestureStylus, f64, f64) + 'static>(
            this: *mut ffi::GtkGestureStylus,
            x: std::ffi::c_double,
            y: std::ffi::c_double,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(&from_glib_borrow(this), x, y)
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"down".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    down_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    /// Emitted when the stylus moves while touching the device.
    /// ## `x`
    /// the X coordinate of the stylus event
    /// ## `y`
    /// the Y coordinate of the stylus event
    #[doc(alias = "motion")]
    pub fn connect_motion<F: Fn(&Self, f64, f64) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn motion_trampoline<F: Fn(&GestureStylus, f64, f64) + 'static>(
            this: *mut ffi::GtkGestureStylus,
            x: std::ffi::c_double,
            y: std::ffi::c_double,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(&from_glib_borrow(this), x, y)
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"motion".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    motion_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    /// Emitted when the stylus is in proximity of the device.
    /// ## `x`
    /// the X coordinate of the stylus event
    /// ## `y`
    /// the Y coordinate of the stylus event
    #[doc(alias = "proximity")]
    pub fn connect_proximity<F: Fn(&Self, f64, f64) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn proximity_trampoline<F: Fn(&GestureStylus, f64, f64) + 'static>(
            this: *mut ffi::GtkGestureStylus,
            x: std::ffi::c_double,
            y: std::ffi::c_double,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(&from_glib_borrow(this), x, y)
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"proximity".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    proximity_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    /// Emitted when the stylus no longer touches the device.
    /// ## `x`
    /// the X coordinate of the stylus event
    /// ## `y`
    /// the Y coordinate of the stylus event
    #[doc(alias = "up")]
    pub fn connect_up<F: Fn(&Self, f64, f64) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn up_trampoline<F: Fn(&GestureStylus, f64, f64) + 'static>(
            this: *mut ffi::GtkGestureStylus,
            x: std::ffi::c_double,
            y: std::ffi::c_double,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(&from_glib_borrow(this), x, y)
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"up".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    up_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[cfg(feature = "v4_10")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_10")))]
    #[doc(alias = "stylus-only")]
    pub fn connect_stylus_only_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_stylus_only_trampoline<F: Fn(&GestureStylus) + 'static>(
            this: *mut ffi::GtkGestureStylus,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(&from_glib_borrow(this))
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::stylus-only".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_stylus_only_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl Default for GestureStylus {
    fn default() -> Self {
        Self::new()
    }
}

// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`GestureStylus`] objects.
///
/// [builder-pattern]: https://doc.rust-lang.org/1.0.0/style/ownership/builders.html
#[must_use = "The builder must be built to be used"]
pub struct GestureStylusBuilder {
    builder: glib::object::ObjectBuilder<'static, GestureStylus>,
}

impl GestureStylusBuilder {
    fn new() -> Self {
        Self {
            builder: glib::object::Object::builder(),
        }
    }

    /// If this gesture should exclusively react to stylus input devices.
    #[cfg(feature = "v4_10")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_10")))]
    pub fn stylus_only(self, stylus_only: bool) -> Self {
        Self {
            builder: self.builder.property("stylus-only", stylus_only),
        }
    }

    /// Mouse button number to listen to, or 0 to listen for any button.
    pub fn button(self, button: u32) -> Self {
        Self {
            builder: self.builder.property("button", button),
        }
    }

    /// Whether the gesture is exclusive.
    ///
    /// Exclusive gestures only listen to pointer and pointer emulated events.
    pub fn exclusive(self, exclusive: bool) -> Self {
        Self {
            builder: self.builder.property("exclusive", exclusive),
        }
    }

    /// Whether the gesture handles only touch events.
    pub fn touch_only(self, touch_only: bool) -> Self {
        Self {
            builder: self.builder.property("touch-only", touch_only),
        }
    }

    /// The number of touch points that trigger
    /// recognition on this gesture.
    pub fn n_points(self, n_points: u32) -> Self {
        Self {
            builder: self.builder.property("n-points", n_points),
        }
    }

    /// The name for this controller, typically used for debugging purposes.
    pub fn name(self, name: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("name", name.into()),
        }
    }

    /// The limit for which events this controller will handle.
    pub fn propagation_limit(self, propagation_limit: PropagationLimit) -> Self {
        Self {
            builder: self
                .builder
                .property("propagation-limit", propagation_limit),
        }
    }

    /// The propagation phase at which this controller will handle events.
    pub fn propagation_phase(self, propagation_phase: PropagationPhase) -> Self {
        Self {
            builder: self
                .builder
                .property("propagation-phase", propagation_phase),
        }
    }

    // rustdoc-stripper-ignore-next
    /// Build the [`GestureStylus`].
    #[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
    pub fn build(self) -> GestureStylus {
        assert_initialized_main_thread!();
        self.builder.build()
    }
}