D:\a\tools.proto\tools.proto\dynamic\src\component\util.rs
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1 | | // Copyright (c) 2025, BlockProject 3D |
2 | | // |
3 | | // All rights reserved. |
4 | | // |
5 | | // Redistribution and use in source and binary forms, with or without modification, |
6 | | // are permitted provided that the following conditions are met: |
7 | | // |
8 | | // * Redistributions of source code must retain the above copyright notice, |
9 | | // this list of conditions and the following disclaimer. |
10 | | // * Redistributions in binary form must reproduce the above copyright notice, |
11 | | // this list of conditions and the following disclaimer in the documentation |
12 | | // and/or other materials provided with the distribution. |
13 | | // * Neither the name of BlockProject 3D nor the names of its contributors |
14 | | // may be used to endorse or promote products derived from this software |
15 | | // without specific prior written permission. |
16 | | // |
17 | | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
18 | | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
19 | | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
20 | | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
21 | | // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
22 | | // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
23 | | // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
24 | | // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
25 | | // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
26 | | // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
27 | | // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | | |
29 | | use crate::buffer::{BufferView, Location}; |
30 | | use crate::component::ComponentType; |
31 | | |
32 | | pub struct DiscoverTool<'a> { |
33 | | items: Option<Vec<BufferView<'a>>>, |
34 | | children: Option<Vec<BufferView<'a>>>, |
35 | | freed_items: Option<Vec<BufferView<'a>>>, |
36 | | freed_children: Vec<BufferView<'a>>, |
37 | | } |
38 | | |
39 | | impl<'a> DiscoverTool<'a> { |
40 | 12 | pub fn new(items: Option<Vec<BufferView<'a>>>, children: Vec<BufferView<'a>>) -> Self { |
41 | 12 | Self { |
42 | 12 | items: None, |
43 | 12 | children: None, |
44 | 12 | freed_children: children, |
45 | 12 | freed_items: items |
46 | 12 | } |
47 | 12 | } |
48 | | |
49 | 0 | pub fn add_item(&mut self, view: BufferView<'a>) { |
50 | 0 | self.items.get_or_insert_default().push(view); |
51 | 0 | } |
52 | | |
53 | 2 | pub fn add_child(&mut self, child: BufferView<'a>) { |
54 | 2 | self.children.get_or_insert_default().push(child); |
55 | 2 | } |
56 | | |
57 | 0 | pub fn discover_item(&mut self, ty: &impl ComponentType, loc: Location) { |
58 | | //FIXME: This does not work if ty does not build the same type of views than the views already in items. |
59 | 0 | let mut view = self.freed_items.get_or_insert_default().pop().unwrap_or(ty.new_instance(false)); |
60 | 0 | *view.location_mut() = loc; |
61 | 0 | self.add_item(view); |
62 | 0 | } |
63 | | |
64 | 2 | pub fn discover_child(&mut self, ty: &impl ComponentType, loc: Location) { |
65 | | //FIXME: This does not work if ty does not build the same type of views than the views already in children. |
66 | 2 | let mut view = self.freed_children.pop().unwrap_or(ty.new_instance(false)); |
67 | 2 | *view.location_mut() = loc; |
68 | 2 | self.add_child(view); |
69 | 2 | } |
70 | | |
71 | 12 | pub fn into_inner(self) -> (Option<Vec<BufferView<'a>>>, Vec<BufferView<'a>>) { |
72 | 12 | (self.items, self.children.unwrap_or(self.freed_children)) |
73 | 12 | } |
74 | | } |