70 lines
2.2 KiB
Rust
70 lines
2.2 KiB
Rust
//! Change the appearance of a scrollable.
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use iced_core::{Background, BorderRadius, Color};
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/// The appearance of a scrollable.
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#[derive(Debug, Clone, Copy)]
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pub struct Scrollbar {
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/// The [`Background`] of a scrollable.
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pub background: Option<Background>,
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/// The border radius of a scrollable.
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pub border_radius: BorderRadius,
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/// The border width of a scrollable.
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pub border_width: f32,
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/// The border [`Color`] of a scrollable.
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pub border_color: Color,
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/// The appearance of the [`Scroller`] of a scrollable.
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pub scroller: Scroller,
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}
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/// The appearance of the scroller of a scrollable.
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#[derive(Debug, Clone, Copy)]
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pub struct Scroller {
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/// The [`Color`] of the scroller.
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pub color: Color,
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/// The border radius of the scroller.
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pub border_radius: BorderRadius,
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/// The border width of the scroller.
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pub border_width: f32,
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/// The border [`Color`] of the scroller.
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pub border_color: Color,
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}
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/// A set of rules that dictate the style of a scrollable.
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pub trait StyleSheet {
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/// The supported style of the [`StyleSheet`].
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type Style: Default;
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/// Produces the style of an active scrollbar.
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fn active(&self, style: &Self::Style) -> Scrollbar;
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/// Produces the style of a scrollbar when the scrollable is being hovered.
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fn hovered(
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&self,
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style: &Self::Style,
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is_mouse_over_scrollbar: bool,
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) -> Scrollbar;
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/// Produces the style of a scrollbar that is being dragged.
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fn dragging(&self, style: &Self::Style) -> Scrollbar {
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self.hovered(style, true)
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}
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/// Produces the style of an active horizontal scrollbar.
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fn active_horizontal(&self, style: &Self::Style) -> Scrollbar {
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self.active(style)
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}
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/// Produces the style of a horizontal scrollbar when the scrollable is being hovered.
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fn hovered_horizontal(
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&self,
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style: &Self::Style,
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is_mouse_over_scrollbar: bool,
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) -> Scrollbar {
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self.hovered(style, is_mouse_over_scrollbar)
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}
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/// Produces the style of a horizontal scrollbar that is being dragged.
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fn dragging_horizontal(&self, style: &Self::Style) -> Scrollbar {
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self.hovered_horizontal(style, true)
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}
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}
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