rust_widgets 0.9.6

Pure Rust cross-platform native GUI library with hardware-adaptive rendering, 60+ widgets, touch/gesture support, i18n, and SVG-pipeline-accurate output
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48

//! Per-widget dirty state tracking.
use crate::core::{ObjectId, Rect};
use std::collections::{HashMap, HashSet};
/// Tracks dirty/clean state for individual widgets.
pub struct WidgetDirtyState {
    dirty_widgets: HashSet<ObjectId>,
    dirty_rects: HashMap<ObjectId, Rect>,
}
impl WidgetDirtyState {
    pub fn new() -> Self {
        Self { dirty_widgets: HashSet::new(), dirty_rects: HashMap::new() }
    }
    pub fn mark_dirty(&mut self, id: ObjectId, rect: Rect) {
        self.dirty_widgets.insert(id);
        self.dirty_rects.insert(id, rect);
    }
    pub fn mark_clean(&mut self, id: ObjectId) {
        self.dirty_widgets.remove(&id);
        self.dirty_rects.remove(&id);
    }
    pub fn is_dirty(&self, id: ObjectId) -> bool {
        self.dirty_widgets.contains(&id)
    }
    pub fn get_dirty_rect(&self, id: ObjectId) -> Option<&Rect> {
        self.dirty_rects.get(&id)
    }
    pub fn dirty_widgets(&self) -> &HashSet<ObjectId> {
        &self.dirty_widgets
    }
    pub fn clear(&mut self) {
        self.dirty_widgets.clear();
        self.dirty_rects.clear();
    }
    pub fn is_empty(&self) -> bool {
        self.dirty_widgets.is_empty()
    }
    pub fn len(&self) -> usize {
        self.dirty_widgets.len()
    }
    pub fn get_all_rects(&self) -> Vec<Rect> {
        self.dirty_rects.values().copied().collect()
    }
}
impl Default for WidgetDirtyState {
    fn default() -> Self {
        Self::new()
    }
}