rvlib/tools/
rot90.rs

1use rvimage_domain::{RvResult, ShapeI};
2
3use crate::{
4    annotations_accessor_mut,
5    events::{Events, KeyCode},
6    history::{History, Record},
7    make_tool_transform,
8    result::trace_ok_err,
9    tools_data::{annotations::InstanceAnnotations, rot90_data::NRotations},
10    util::Visibility,
11    world::World,
12    world_annotations_accessor, InstanceAnnotate,
13};
14use std::mem;
15
16use super::{bbox, brush, Manipulate, BBOX_NAME, BRUSH_NAME};
17
18pub const ACTOR_NAME: &str = "Rot90";
19annotations_accessor_mut!(ACTOR_NAME, rot90_mut, "Rotation 90 didn't work", NRotations);
20world_annotations_accessor!(ACTOR_NAME, rot90, "Rotation 90 didn't work", NRotations);
21
22fn rot90_instannos_of_file<T>(
23    annos: Option<&mut InstanceAnnotations<T>>,
24    shape: ShapeI,
25) -> RvResult<()>
26where
27    T: InstanceAnnotate,
28{
29    if let Some(annos) = annos {
30        for elt in annos.elts_iter_mut() {
31            *elt = mem::take(elt).rot90_with_image_ntimes(shape, 1)?;
32        }
33    }
34    Ok(())
35}
36
37fn rot90_instannos_once(world: &mut World, shape: ShapeI) -> RvResult<()> {
38    macro_rules! rot {
39        ($name:expr, $module:ident) => {
40            let annos = $module::get_annos_mut(world);
41            rot90_instannos_of_file(annos, shape)?;
42            if let Some(d) = $module::get_options_mut(world) {
43                d.core.is_redraw_annos_triggered = true;
44            }
45            world.request_redraw_annotations($name, Visibility::None);
46        };
47    }
48    rot!(BRUSH_NAME, brush);
49    rot!(BBOX_NAME, bbox);
50    Ok(())
51}
52
53/// rotate 90 degrees counter clockwise
54fn rot90(mut world: World, n_rotations: NRotations, skip_annos: bool) -> World {
55    let shape = world.data.shape();
56    match n_rotations {
57        NRotations::Zero => (),
58        NRotations::One => {
59            if !skip_annos {
60                trace_ok_err(rot90_instannos_once(&mut world, shape));
61            }
62            world.data.apply(|im| im.rotate270());
63        }
64        NRotations::Two => {
65            world.data.apply(|im| im.rotate180());
66        }
67        NRotations::Three => {
68            world.data.apply(|im| im.rotate90());
69        }
70    }
71    world.set_zoom_box(None);
72    world.request_redraw_image();
73    world
74}
75#[derive(Clone, Copy, Debug)]
76pub struct Rot90;
77
78impl Rot90 {
79    fn key_pressed(
80        &mut self,
81        _events: &Events,
82        mut world: World,
83        mut history: History,
84    ) -> (World, History) {
85        let skip_annos = false;
86        world = rot90(world, NRotations::One, skip_annos);
87        if let Some(anno) = get_annos_mut(&mut world) {
88            *anno = anno.increase();
89        }
90        history.push(Record::new(world.clone(), ACTOR_NAME));
91        (world, history)
92    }
93}
94
95impl Manipulate for Rot90 {
96    fn new() -> Self {
97        Self {}
98    }
99
100    fn on_filechange(&mut self, mut world: World, history: History) -> (World, History) {
101        if let Some(nrot) = get_annos_if_some(&world).copied() {
102            let skip_annos = true;
103            world = rot90(world, nrot, skip_annos);
104        }
105        (world, history)
106    }
107
108    fn events_tf(&mut self, world: World, history: History, event: &Events) -> (World, History) {
109        let (world, history) = make_tool_transform!(
110            self,
111            world,
112            history,
113            event,
114            [(pressed, KeyCode::R, key_pressed)]
115        );
116        (world, history)
117    }
118}
rvlib/tools/rot90.rs

rvlib/tools/
rot90.rs
