use serde::Deserialize;use ui::{px, Pixels};#[derive(Debug, Clone, PartialEq, Deserialize)]pub enum ScrollAmount { // Scroll N lines (positive is towards the end of the document) Line(f32), // Scroll N pages (positive is towards the end of the document) Page(f32),}impl ScrollAmount { pub fn lines(&self, mut visible_line_count: f32) -> f32 { match self { Self::Line(count) => *count, Self::Page(count) => { // for full pages subtract one to leave an anchor line if count.abs() == 1.0 { visible_line_count -= 1.0 } (visible_line_count * count).trunc() } } } pub fn pixels(&self, line_height: Pixels, height: Pixels) -> Pixels { match self { ScrollAmount::Line(x) => px(line_height.0 * x), ScrollAmount::Page(x) => px(height.0 * x), } }}
use serde::Deserialize;
use ui::{px, Pixels};
#[derive(Debug, Clone, PartialEq, Deserialize)]
pub enum ScrollAmount {
// Scroll N lines (positive is towards the end of the document)
Line(f32),
// Scroll N pages (positive is towards the end of the document)
Page(f32),
}
impl ScrollAmount {
pub fn lines(&self, mut visible_line_count: f32) -> f32 {
match self {
Self::Line(count) => *count,
Self::Page(count) => {
// for full pages subtract one to leave an anchor line
if count.abs() == 1.0 {
visible_line_count -= 1.0
}
(visible_line_count * count).trunc()
}
}
}
pub fn pixels(&self, line_height: Pixels, height: Pixels) -> Pixels {
match self {
ScrollAmount::Line(x) => px(line_height.0 * x),
ScrollAmount::Page(x) => px(height.0 * x),
}
}
}