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Basics

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API Reference

class: ChoiceBox

[98:7] extends: Node, Control

ChoiceBox wraps the JavaFX ChoiceBox control, a compact selection widget that shows the currently selected item and reveals a pop-up list of all choices when clicked. Unlike ComboBox, ChoiceBox does not support editable text entry and is best suited for a small, fixed set of options. The style class choice-box is applied by default, and the control inherits all CSS properties from Control. The tables below list every CSS property available to ChoiceBox, organized by the class level where each property is defined. Properties defined at a higher level are inherited by all subclasses below it.

CSS Properties -- Control

Property Values Default Description
-fx-skin <string> null Fully qualified class name of the Skin to use for rendering this control.
-fx-focus-traversable true | false true When true, the control participates in focus traversal via the keyboard Tab key.

CSS Properties -- Region

Background fills

Property Values Default Description
-fx-background-color <paint> [, <paint>]* transparent One or more paint values for background fill layers, rendered back to front.
-fx-background-insets <size> or <t> <r> <b> <l> [, ...]* 0 0 0 0 Insets from the region edges for each background fill layer.
-fx-background-radius <size> [/ <size>]* [, ...]* 0 0 0 0 Corner radii for each background fill layer.

Background images

Property Values Default Description
-fx-background-image <uri> [, <uri>]* null One or more image URIs for background image layers.
-fx-background-position <bg-position> [, ...]* 0% 0% Position of each background image within the region. Accepts keywords or size values.
-fx-background-repeat <repeat-style> [, ...]* repeat repeat Tiling behavior for each background image. Values: repeat, no-repeat, round, space applied per axis.
-fx-background-size <bg-size> [, ...]* auto auto Dimensions for each background image. Supports cover, contain, stretch, or explicit sizes.

Stroked borders

Property Values Default Description
-fx-border-color <paint> or <t> <r> <b> <l> [, ...]* null Paint colors for the border stroke layers.
-fx-border-insets <size> or <t> <r> <b> <l> [, ...]* null Insets from region edges for each border layer.
-fx-border-radius <size> [, ...]* null Corner radii for border stroke layers.
-fx-border-style <border-style> [, ...]* null Border line style (solid, dotted, dashed) plus phase and line cap/join options per layer.
-fx-border-width <size> or <t> <r> <b> <l> [, ...]* null Thickness of each border stroke layer, per side.

Border images

Property Values Default Description
-fx-border-image-source <uri> [, <uri>]* null Image URIs used to paint the border.
-fx-border-image-insets <size> or <t> <r> <b> <l> [, ...]* 0 0 0 0 Insets for each border image layer.
-fx-border-image-repeat <repeat-style> [, ...]* repeat repeat Tiling behavior for each border image.
-fx-border-image-slice <size> or <t> <r> <b> <l> [fill] [, ...]* 100% Divides each border image into nine regions. Adding fill preserves the center region.
-fx-border-image-width <size> or <t> <r> <b> <l> [, ...]* 1 1 1 1 Width of each border image slice per side.

Other Region properties

Property Values Default Description
-fx-padding <size> or <t> <r> <b> <l> 0 0 0 0 Interior padding between the region border and its content.
-fx-shape <string> null SVG path string that defines a custom clip shape for the region.
-fx-scale-shape true | false true When true, the shape is scaled to fit the region.
-fx-position-shape true | false true When true, the shape is centered within the region.
-fx-snap-to-pixel true | false true When true, positions and sizes are rounded to whole pixel boundaries.
-fx-min-width <size> -1 Minimum width. -1 uses the computed minimum.
-fx-pref-width <size> -1 Preferred width. -1 uses the computed preferred.
-fx-max-width <size> -1 Maximum width. -1 uses the computed maximum.
-fx-min-height <size> -1 Minimum height. -1 uses the computed minimum.
-fx-pref-height <size> -1 Preferred height. -1 uses the computed preferred.
-fx-max-height <size> -1 Maximum height. -1 uses the computed maximum.

CSS Properties -- Node

Property Values Default Description
-fx-blend-mode add | blue | color-burn | color-dodge | darken | difference | exclusion | green | hard-light | lighten | multiply | overlay | red | screen | soft-light | src-atop | src-in | src-out | src-over null Blend mode used when compositing this node with nodes beneath it.
-fx-cursor null | crosshair | default | hand | move | e-resize | h-resize | ne-resize | nw-resize | n-resize | se-resize | sw-resize | s-resize | w-resize | v-resize | text | wait | <url> null (inherits) Mouse cursor shape shown when the pointer is over this node. Inherits from parent by default.
-fx-effect <effect> null A visual effect (e.g. DropShadow, InnerShadow) applied to the rendered node.
-fx-focus-traversable true | false false Whether this node participates in focus traversal. Overridden to true by Control.
-fx-view-order <number> 0 Adjusts rendering and hit-test order within the parent without changing the scene graph order.
-fx-opacity <number> [0.0 - 1.0] 1 Opacity of the node. 0 is fully transparent, 1 is fully opaque.
-fx-rotate <number> 0 Rotation angle in degrees applied around the node's center point. Positive values are clockwise.
-fx-scale-x <number> 1 Scale factor along the X axis about the node's center.
-fx-scale-y <number> 1 Scale factor along the Y axis about the node's center.
-fx-scale-z <number> 1 Scale factor along the Z axis about the node's center.
-fx-translate-x <number> 0 Translation offset along the X axis in pixels.
-fx-translate-y <number> 0 Translation offset along the Y axis in pixels.
-fx-translate-z <number> 0 Translation offset along the Z axis in pixels.
visibility visible | hidden | collapse | inherit visible Controls whether the node is rendered and participates in layout. collapse removes it from layout; hidden keeps the space.
-fx-managed true | false true When false, the parent layout does not manage this node's position or size.

Methods

  • ChoiceBox (Val)

    Constructor creates a new ChoiceBox object with the provided JavaFX object to set or a list with the available values to set.

    • @p Val is a list of strings with the ChoiceBox values.
    • @r this object
  • setItems (list lst)

    Sets the available items with the provided list.

    • @p lst is a list with the values.
    • @r this object
  • getValue ()

    Gets the selected value.

    • @r The selected value.
  • onChange (callback OnChange)

    Registeres the on change handler with the provided callback. The change handler should take three arguments similar to this function definition. onChoiceBoxChange(ObservableValue, OldValue, NewValue)

    • @p OnChange is a callback with the change handler.
    • @r this object