61 lines
1.7 KiB
Rust
61 lines
1.7 KiB
Rust
use ui_model::{ModelRect, ModelRectVec};
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#[derive(Clone, Debug)]
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pub enum RepaintMode {
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Nothing,
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All,
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AreaList(ModelRectVec),
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Area(ModelRect),
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}
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impl RepaintMode {
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pub fn join(self, mode: RepaintMode) -> RepaintMode {
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match (self, mode) {
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(RepaintMode::Nothing, m) => m,
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(m, RepaintMode::Nothing) => m,
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(RepaintMode::All, _) => RepaintMode::All,
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(_, RepaintMode::All) => RepaintMode::All,
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(RepaintMode::Area(mr1), RepaintMode::Area(mr2)) => {
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let mut vec = ModelRectVec::new(mr1);
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vec.join(&mr2);
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RepaintMode::AreaList(vec)
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}
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(RepaintMode::AreaList(mut target), RepaintMode::AreaList(source)) => {
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for s in &source.list {
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target.join(s);
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}
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RepaintMode::AreaList(target)
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}
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(RepaintMode::AreaList(mut list), RepaintMode::Area(l2)) => {
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list.join(&l2);
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RepaintMode::AreaList(list)
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}
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(RepaintMode::Area(l1), RepaintMode::AreaList(mut list)) => {
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list.join(&l1);
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RepaintMode::AreaList(list)
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}
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_mode() {
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let mode = RepaintMode::Area(ModelRect::point(1, 1));
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let mode = mode.join(RepaintMode::Nothing);
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match mode {
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RepaintMode::Area(ref rect) => {
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assert_eq!(1, rect.top);
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assert_eq!(1, rect.bot);
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assert_eq!(1, rect.left);
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assert_eq!(1, rect.right);
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}
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_ => panic!("mode is worng"),
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}
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}
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}
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