makepad_draw/
cx_2d.rs

1use {
2    std::{
3        ops::Deref,
4        ops::DerefMut,
5    },
6    crate::{
7        cx_draw::CxDraw,
8        makepad_math::{DVec2,Vec2Index},
9        makepad_platform::{
10            DrawListId,
11        },
12        draw_list_2d::DrawList2d,
13        turtle::{Turtle, TurtleWalk, Walk, AlignEntry},
14    },
15};
16
17pub struct Cx2d<'a, 'b> {
18    pub cx: &'b mut CxDraw<'a>,
19    pub (crate) overlay_id: Option<DrawListId>,
20    
21    //pub (crate) overlay_sweep_lock: Option<Rc<RefCell<Area>>>,
22    pub (crate) turtles: Vec<Turtle>,
23    pub (crate) turtle_walks: Vec<TurtleWalk>,
24    pub (crate) turtle_clips: Vec<(DVec2, DVec2)>,
25    pub (crate) align_list: Vec<AlignEntry>,
26}
27
28impl<'a, 'b> Deref for Cx2d<'a,'b> {type Target = CxDraw<'a>; fn deref(&self) -> &Self::Target {self.cx}}
29impl<'a, 'b> DerefMut for Cx2d<'a,'b> {fn deref_mut(&mut self) -> &mut Self::Target {self.cx}}
30
31impl<'a, 'b> Cx2d<'a, 'b> {
32    pub fn new(cx: &'b mut CxDraw<'a>)->Self{
33        Self {
34            overlay_id: None,
35            cx: cx,
36            turtle_clips: Vec::with_capacity(1024),
37            turtle_walks: Vec::with_capacity(1024),
38            turtles: Vec::with_capacity(64),
39            align_list: Vec::with_capacity(4096),
40        }
41    }
42    
43    pub fn will_redraw(&self, draw_list_2d: &mut DrawList2d, walk: Walk) -> bool {
44        // ok so we need to check if our turtle position has changed since last time.
45        // if it did, we redraw
46        let rect = self.peek_walk_turtle(walk);
47        if draw_list_2d.dirty_check_rect != rect {
48            draw_list_2d.dirty_check_rect = rect;
49            return true;
50        }
51        self.draw_event.draw_list_will_redraw(self, draw_list_2d.draw_list.id())
52    }
53        
54    pub fn will_redraw_check_axis(&self, draw_list_2d: &mut DrawList2d, size:f64, axis:Vec2Index) -> bool {
55        // ok so we need to check if our turtle position has changed since last time.
56        // if it did, we redraw
57        if draw_list_2d.dirty_check_rect.size.index(axis) != size {
58            draw_list_2d.dirty_check_rect.size.set_index(axis, size);
59            return true;
60        }
61        self.draw_event.draw_list_will_redraw(self, draw_list_2d.draw_list.id())
62    }
63}
makepad_draw/cx_2d.rs

makepad_draw/
cx_2d.rs
