Crate zng_wgt

Basic widget properties and helpers for declaring widgets and properties.

Widget Instantiation

See enable_widget_macros! if you want to instantiate widgets without depending on the zng crate.

Crate

This crate is part of the zng project.

Cargo Features

This crate provides 3 feature flags, 1 enabled by default.

"debug_default"

Signal the build script to enable the "dyn_*", "inspector" and "trace_widget" features in debug builds.

Enabled by default.

"dyn_closure"

Box closures at opportune places, such as Var::map, reducing the number of monomorphised types.

This speeds-up compilation time at the cost of runtime.

"http"

Enable web tasks.

Modules

• node
  Helper nodes.
• prelude
  Prelude for declaring properties and widgets.

Macros

• command_property
  Declare one or more command event properties.
• enable_widget_macros
  Enable widget instantiation in crates that can’t depend on the zng crate.
• event_property
  Declare one or more event properties.
• wgt_fn
  Declares a widget function closure.

Structs

• OnNodeOpArgs
  Arguments for the node operation event properties.
• Wgt
  W Minimal widget.
• WidgetFn
  Boxed shared closure that generates a widget for a given data.

Enums

• HitTestMode
  Defines if and how a widget is hit-tested.
• InlineMode
  Inline mode explicitly selected for a widget.

Traits

• WidgetInfoBuilderModalExt
  Widget info builder extensions for modal control.

Functions

• align
  P Aligns the widget within the available space.
• auto_hide
  P Defines if the widget only renders if it’s bounds intersects with the viewport auto-hide rectangle.
• border
  P Border widths, color and style.
• border_align
  P Position of a widget borders in relation to the widget fill.
• border_over
  P If the border is rendered over the fill and child visuals.
• clip_to_bounds
  P Clips the widget child to the area of the widget when set to true.
• color_scheme
  P Defines the preferred color scheme in the widget and descendants.
• corner_radius
  P Corner radius of widget and inner widgets.
• corner_radius_fit
  P Defines how the corner_radius is computed for each usage.
• enabled
  P Defines if default interaction is allowed in the widget and its descendants.
• hit_test_mode
  P Defines if and how the widget is hit-tested.
• inline
  P Enforce an inline mode on the widget.
• interactive
  P Defines if any interaction is allowed in the widget and its descendants.
• is_collapsed
  P If the widget is Collapsed.
• is_disabled
  P If the widget is disabled for interaction.
• is_enabled
  P If the widget is enabled for interaction.
• is_hidden
  P If the widget is Hidden.
• is_hit_testable
  P If the widget is visible for hit-tests.
• is_inited
  P If the widget has been initialized.
• is_ltr
  P If the layout direction is left-to-right.
• is_rtl
  P If the layout direction is right-to-left.
• is_visible
  P If the widget is Visible.
• margin
  P Margin space around the widget.
• modal
  P Only allow interaction inside the widget, descendants and ancestors.
• modal_included
  P Include itself in the allow list of another widget that is modal or descendant of modal.
• modal_includes
  P Extra widgets that are allowed interaction by this widget when it is modal.
• on_block
  P Widget interactions now blocked.
• on_blocked_changed
  P Widget interactions where blocked or unblocked.
• on_deinit
  P Widget deinited.
• on_disable
  P Widget normal interactions now disabled.
• on_enable
  P Widget normal interactions now enabled.
• on_enabled_changed
  P Widget was enabled or disabled.
• on_info_init
  P Widget info is now available.
• on_init
  P Widget initialized.
• on_interactivity_changed
  P Widget interactivity changed.
• on_move
  P Widget global position changed.
• on_node_op
  P On any node operation.
• on_pre_block
  P Preview on_block event.
• on_pre_blocked_changed
  P Preview on_blocked_changed event.
• on_pre_deinit
  P Preview on_deinit event.
• on_pre_disable
  P Preview on_disable event.
• on_pre_enable
  P Preview on_enable event.
• on_pre_enabled_changed
  P Preview on_enabled_changed event.
• on_pre_init
  P Preview on_init event.
• on_pre_interactivity_changed
  P Preview on_interactivity_changed event.
• on_pre_move
  P Preview on_move event.
• on_pre_node_op
  P Preview on_node_op event.
• on_pre_transform_changed
  P Preview on_transform_changed event.
• on_pre_unblock
  P Preview on_unblock event.
• on_pre_update
  P Preview on_update event.
• on_pre_vis_disable
  P Preview on_vis_disable event.
• on_pre_vis_enable
  P Preview on_vis_enable event.
• on_pre_vis_enabled_changed
  P Preview on_vis_enabled_changed event.
• on_transform_changed
  P Widget global inner transform changed.
• on_unblock
  P Widget interactions now unblocked.
• on_update
  P Widget update event.
• on_vis_disable
  P Widget now looks disabled.
• on_vis_enable
  P Widget now looks enabled.
• on_vis_enabled_changed
  P Widget changed to enabled or disabled visuals.
• parallel
  P Defines what node list methods can run in parallel in the widget and descendants.
• visibility
  P Sets the widget visibility.
• z_index
  P Defines the render order of a widget in a layout panel.