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Resize-corner Improvement #257

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Resize-corner Improvement #257

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23 changes: 17 additions & 6 deletions nih_plug_egui/src/resizable_window.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@
use egui_baseview::egui::emath::GuiRounding;
use egui_baseview::egui::{InnerResponse, UiBuilder};

use crate::egui::{pos2, CentralPanel, Context, Id, Rect, Response, Sense, Ui, Vec2};
use crate::egui::{pos2, CentralPanel, Context, Id, LayerId, Order, Rect, Response, Sense, Ui, Vec2};
use crate::EguiState;

/// Adds a corner to the plugin window that can be dragged in order to resize it.
Expand Down Expand Up @@ -41,10 +41,21 @@ impl ResizableWindow {

let ret = add_contents(&mut content_ui);

let corner_size = Vec2::splat(ui.visuals().resize_corner_size);
let corner_rect = Rect::from_min_size(ui_rect.max - corner_size, corner_size);

let corner_response = ui.interact(corner_rect, self.id.with("corner"), Sense::drag());
let corner_layer_id =
LayerId::new(Order::Foreground, self.id.with("resize_corner_layer"));
let mut corner_ui = ui.new_child(
UiBuilder::new()
.layer_id(corner_layer_id)
.max_rect(ui_rect)
.layout(*ui.layout()),
);
corner_ui.set_clip_rect(ui_rect);

let corner_size = Vec2::splat(corner_ui.visuals().resize_corner_size);
let corner_rect = Rect::from_min_size(ui_rect.max - corner_size, corner_size);

let corner_response =
corner_ui.interact(corner_rect, self.id.with("corner"), Sense::drag());

if let Some(pointer_pos) = corner_response.interact_pointer_pos() {
let desired_size = (pointer_pos - ui_rect.min + 0.5 * corner_response.rect.size())
Expand All @@ -58,7 +69,7 @@ impl ResizableWindow {
}
}

paint_resize_corner(&content_ui, &corner_response);
paint_resize_corner(&corner_ui, &corner_response);

ret
})
Expand Down