Struct i_slint_core::items::TouchArea

#[repr(C)]
pub struct TouchArea {

    pub x: Property<LogicalLength>,
    pub y: Property<LogicalLength>,
    pub width: Property<LogicalLength>,
    pub height: Property<LogicalLength>,
    pub enabled: Property<bool>,
    pub pressed: Property<bool>,
    pub has_hover: Property<bool>,
    pub pressed_x: Property<LogicalLength>,
    pub pressed_y: Property<LogicalLength>,
    pub mouse_x: Property<LogicalLength>,
    pub mouse_y: Property<LogicalLength>,
    pub mouse_cursor: Property<MouseCursor>,
    pub clicked: Callback<VoidArg>,
    pub moved: Callback<VoidArg>,
    pub pointer_event: Callback<(PointerEvent,)>,
    pub cached_rendering_data: CachedRenderingData,
    /* private fields */
}

The implementation of the TouchArea element

Fields

x: Property<LogicalLength>

y: Property<LogicalLength>

width: Property<LogicalLength>

height: Property<LogicalLength>

enabled: Property<bool>

pressed: Property<bool>

FIXME: We should annotate this as an “output” property.

has_hover: Property<bool>

pressed_x: Property<LogicalLength>

FIXME: there should be just one property for the point instead of two. Could even be merged with pressed in a Property<Option<Point>> (of course, in the implementation item only, for the compiler it would stay separate properties)

pressed_y: Property<LogicalLength>

mouse_x: Property<LogicalLength>

FIXME: should maybe be as parameter to the mouse event instead. Or at least just one property

mouse_y: Property<LogicalLength>

mouse_cursor: Property<MouseCursor>

clicked: Callback<VoidArg>

moved: Callback<VoidArg>

pointer_event: Callback<(PointerEvent,)>

cached_rendering_data: CachedRenderingData

FIXME: remove this

Implementations

impl TouchArea

pub const FIELD_OFFSETS: TouchAreaFieldsOffsets = _

Return a struct containing the offset of for the fields of this struct

impl TouchArea

pub fn x(self: Pin<&Self>) -> LogicalLength

pub fn y(self: Pin<&Self>) -> LogicalLength

pub fn width(self: Pin<&Self>) -> LogicalLength

pub fn height(self: Pin<&Self>) -> LogicalLength

pub fn enabled(self: Pin<&Self>) -> bool

pub fn pressed(self: Pin<&Self>) -> bool

pub fn has_hover(self: Pin<&Self>) -> bool

pub fn pressed_x(self: Pin<&Self>) -> LogicalLength

pub fn pressed_y(self: Pin<&Self>) -> LogicalLength

pub fn mouse_x(self: Pin<&Self>) -> LogicalLength

pub fn mouse_y(self: Pin<&Self>) -> LogicalLength

pub fn mouse_cursor(self: Pin<&Self>) -> MouseCursor

Trait Implementations

impl Default for TouchArea

fn default() -> TouchArea

Returns the “default value” for a type.

impl HasStaticVTable<ItemVTable> for TouchArea

fn static_vtable() -> &'static ItemVTable

Safety: must be a valid VTable for Self

impl Item for TouchArea

fn init(self: Pin<&Self>, _window_adapter: &Rc<dyn WindowAdapter>)

This function is called by the run-time after the memory for the item has been allocated and initialized. It will be called before any user specified bindings are set.

fn geometry(self: Pin<&Self>) -> LogicalRect

Returns the geometry of this item (relative to its parent item)

fn layout_info(
    self: Pin<&Self>,
    _orientation: Orientation,
    _window_adapter: &Rc<dyn WindowAdapter>
) -> LayoutInfo

We would need max/min/preferred size, and all layout info

fn input_event_filter_before_children(
    self: Pin<&Self>,
    event: MouseEvent,
    window_adapter: &Rc<dyn WindowAdapter>,
    _self_rc: &ItemRc
) -> InputEventFilterResult

Event handler for mouse and touch event. This function is called before being called on children. Then, depending on the return value, it is called for the children, and their children, then Self::input_event is called on the children, and finally Self::input_event is called on this item again.

fn input_event(
    self: Pin<&Self>,
    event: MouseEvent,
    window_adapter: &Rc<dyn WindowAdapter>,
    _self_rc: &ItemRc
) -> InputEventResult

Handle input event for mouse and touch event

fn key_event(
    self: Pin<&Self>,
    _: &KeyEvent,
    _window_adapter: &Rc<dyn WindowAdapter>,
    _self_rc: &ItemRc
) -> KeyEventResult

fn focus_event(
    self: Pin<&Self>,
    _: &FocusEvent,
    _window_adapter: &Rc<dyn WindowAdapter>,
    _self_rc: &ItemRc
) -> FocusEventResult

fn render(
    self: Pin<&Self>,
    _backend: &mut &'_ mut dyn ItemRenderer,
    _self_rc: &ItemRc
) -> RenderingResult

impl ItemConsts for TouchArea

const cached_rendering_data_offset: FieldOffset<TouchArea, CachedRenderingData> = _

offset in bytes from the *const ItemImpl. isize::MAX means None

impl<'__dummy_lifetime> Unpin for TouchAreawhere
    __MustNotImplUnpin<'__dummy_lifetime>: Unpin,