48 lines
1.1 KiB
Rust
48 lines
1.1 KiB
Rust
/// The location of a UI element, in one of a few
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/// possible coordinate systems.
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///
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/// Positive Y always points up,
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/// positive X always points right.
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#[derive(Debug, Clone)]
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pub enum PositionAnchor {
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/// Position of this sprite's center,
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/// relative to the nw corner of the window.
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NwC,
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/// Position of this sprite's nw corner,
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/// relative to the nw corner of the window.
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NwNw,
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/// Position of this sprite's ne corner,
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/// relative to the nw corner of the window.
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NwNe,
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/// Position of this sprite's sw corner,
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/// relative to the nw corner of the window.
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NwSw,
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/// Position of this sprite's se corner,
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/// relative to the nw corner of the window.
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NwSe,
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/// Position of this sprite's ne corner,
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/// relative to the ne corner of the window.
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NeNe,
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}
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// These offsets are implemented in wgsl shaders.
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impl PositionAnchor {
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/// Get the uint that represents this anchor mode in shaders
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pub fn to_int(&self) -> u32 {
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match self {
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Self::NwC => 0,
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Self::NwNw => 1,
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Self::NwNe => 2,
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Self::NwSw => 3,
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Self::NwSe => 4,
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Self::NeNe => 5,
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}
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}
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}
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