29 lines
874 B
Rust
29 lines
874 B
Rust
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use crate::Vector;
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/// The result of hit testing on text.
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#[derive(Debug, Clone, Copy, PartialEq)]
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pub enum HitTestResult {
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/// The point was within the bounds of the returned character index.
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CharOffset(usize),
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/// The provided point was not within the bounds of a glyph. The index
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/// of the character with the closest centeroid position is returned,
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/// as well as its delta.
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NearestCharOffset(usize, Vector),
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}
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impl HitTestResult {
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/// Computes the cursor position corresponding to this [`HitTestResult`] .
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pub fn cursor(&self) -> usize {
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match self {
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HitTestResult::CharOffset(i) => *i,
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HitTestResult::NearestCharOffset(i, delta) => {
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if delta.x > f32::EPSILON {
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i + 1
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} else {
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*i
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}
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}
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}
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}
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}
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