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attempting to switch to a rotate method of moving slides

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This commit is contained in:
Chris Cochrun 2023-04-14 14:27:50 -05:00
parent f2b1fdd4a6
commit 21e34a1c94
1 changed files with 30 additions and 14 deletions
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44
src/rust/slide_model.rs
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@ -598,10 +598,14 @@ mod slide_model {
self.as_mut().begin_reset_model();
}
if move_down && count > 1 {
self.as_mut()
.move_items(first_slide, dest_slide - count + 1, count);
self.as_mut().move_items(
first_slide as usize,
dest_slide as usize - count as usize + 1,
count as usize,
);
} else {
self.as_mut().move_items(first_slide, dest_slide, count);
self.as_mut()
.move_items(first_slide as usize, dest_slide as usize, count as usize);
}
if count > 1 {
@ -672,22 +676,34 @@ mod slide_model {
println!("rust-move: {first_slide} to {dest_slide} with {count} slides");
}
fn move_items(mut self: Pin<&mut Self>, source_index: i32, dest_index: i32, count: i32) {
fn move_items(
mut self: Pin<&mut Self>,
source_index: usize,
dest_index: usize,
count: usize,
) {
let end_slide = source_index + count;
println!("rust-end-slide: {:?}", end_slide);
unsafe {
self.as_mut().begin_reset_model();
let drained: Vec<Slidey> = self
.as_mut()
.slides_mut()
.drain(source_index as usize..end_slide as usize)
.collect();
println!("rust-drained: {:?}", drained);
for (i, slide) in drained.iter().enumerate() {
self.as_mut()
.slides_mut()
.insert(dest_index as usize + i, slide.clone());
if source_index < dest_index {
let move_amount = dest_index - source_index;
self.as_mut().slides_mut()[source_index..dest_index].rotate_right(move_amount);
} else {
let move_amount = source_index - dest_index;
self.as_mut().slides_mut()[source_index..dest_index].rotate_left(move_amount);
}
// let drained: Vec<Slidey> = self
// .as_mut()
// .slides_mut()
// .drain(source_index..end_slide)
// .collect();
// println!("rust-drained: {:?}", drained);
// for (i, slide) in drained.iter().enumerate() {
// self.as_mut()
// .slides_mut()
// .insert(dest_index + i, slide.clone());
// }
self.as_mut().end_reset_model();
}
}