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
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
use scene::{Element, ElementRef, Project, SceneTracks};
use timeline::TrackType;
use timeline::placement::apply::ApplyPlacementParams;
use timeline::placement::{
NewTrackPosition, PlacementResult, PlacementStrategy, PlacementSubject,
ResolveTrackPlacementParams, apply_placement, ordered_tracks, resolve_track_placement,
};
use uuid::Uuid;
use crate::command::{Command, CommandError, CommandResult};
use crate::project_ext::active_scene_mut;
fn build_duplicate_element(element: &Element, id: String) -> Element {
let mut duplicate = element.clone();
{
let base = duplicate.base_mut();
base.id = id;
base.name = format!("{} (copy)", base.name);
base.animations = animation::clone_animations(base.animations.as_ref(), true);
}
duplicate
}
pub struct DuplicateElementsCommand {
elements: Vec<ElementRef>,
duplicated: Vec<ElementRef>,
saved_state: Option<SceneTracks>,
}
impl DuplicateElementsCommand {
pub fn new(elements: Vec<ElementRef>) -> Self {
Self {
elements,
duplicated: Vec::new(),
saved_state: None,
}
}
pub fn duplicated_elements(&self) -> &[ElementRef] {
&self.duplicated
}
}
impl Command for DuplicateElementsCommand {
fn execute(
&mut self,
project: &mut Project,
) -> Result<Option<CommandResult>, CommandError> {
let Some(scene) = active_scene_mut(project) else {
return Ok(None);
};
self.saved_state = Some(scene.tracks.clone());
self.duplicated.clear();
let saved_state = scene.tracks.clone();
let mut updated_tracks = scene.tracks.clone();
for track in ordered_tracks(&saved_state) {
let new_elements: Vec<Element> = track
.elements()
.iter()
.filter(|element| {
self.elements.iter().any(|target| {
target.track_id == track.id() && target.element_id == element.base().id
})
})
.map(|element| build_duplicate_element(element, Uuid::new_v4().to_string()))
.collect();
if new_elements.is_empty() {
continue;
}
let placement_result = resolve_track_placement(&ResolveTrackPlacementParams {
tracks: updated_tracks.clone(),
subject: PlacementSubject::TrackType(TrackType::of_track(track)),
time_spans: Vec::new(),
strategy: PlacementStrategy::AlwaysNew {
position: NewTrackPosition::Highest,
},
});
let Some(placement_result @ PlacementResult::NewTrack { .. }) = placement_result
else {
continue;
};
let new_element_ids: Vec<String> = new_elements
.iter()
.map(|element| element.base().id.clone())
.collect();
let Some(applied) = apply_placement(&ApplyPlacementParams {
tracks: updated_tracks.clone(),
placement_result,
elements: new_elements,
new_track_id: Uuid::new_v4().to_string(),
new_track_insert_index_override: None,
}) else {
continue;
};
updated_tracks = applied.updated_tracks;
self.duplicated.extend(new_element_ids.into_iter().map(|element_id| {
ElementRef {
track_id: applied.target_track_id.clone(),
element_id,
}
}));
}
scene.tracks = updated_tracks;
if self.duplicated.is_empty() {
return Ok(None);
}
Ok(Some(CommandResult::element_selection(
self.duplicated.clone(),
)))
}
fn undo(&mut self, project: &mut Project) {
let Some(saved) = &self.saved_state else {
return;
};
if let Some(scene) = active_scene_mut(project) {
scene.tracks = saved.clone();
}
}
}
|
