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topola
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feat(topola-egui): Make stroke width independent of scale factor

This commit is contained in:
Mikolaj Wielgus 2026-03-09 16:49:11 +01:00
parent b1ab710adb
commit 74b9004ed9
2 changed files with 24 additions and 9 deletions
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8
topola-egui/src/displayer.rs
View File

@ -4,7 +4,7 @@
use egui::Pos2;
use crate::{menu_bar::MenuBar, workspace::Workspace};
use crate::{viewport::Viewport, workspace::Workspace};
pub struct Displayer {}
@ -18,9 +18,10 @@ impl Displayer {
ctx: &egui::Context,
ui: &egui::Ui,
//menu_bar: &MenuBar,
viewport: &Viewport,
workspace: &Workspace,
) {
self.display_layout(ctx, ui, /*menu_bar,*/ workspace);
self.display_layout(ctx, ui, /*menu_bar,*/ viewport, workspace);
}
pub fn display_layout(
@ -28,6 +29,7 @@ impl Displayer {
ctx: &egui::Context,
ui: &egui::Ui,
//menu_bar: &MenuBar,
viewport: &Viewport,
workspace: &Workspace,
) {
ui.painter().line(
@ -41,7 +43,7 @@ impl Displayer {
y: p[1] as f32,
})
.collect::<Vec<_>>(),
egui::Stroke::new(500.0, egui::Color32::WHITE),
egui::Stroke::new(20.0 / viewport.scale_factor(), egui::Color32::WHITE),
);
ui.painter().line(
vec![

25
topola-egui/src/viewport.rs
View File

@ -5,29 +5,42 @@
use crate::{displayer::Displayer, workspace::Workspace};
pub struct Viewport {
pub view_rect: egui::Rect,
pub scene_rect: egui::Rect,
pub ref_scene_rect: egui::Rect,
}
impl Viewport {
pub fn new() -> Self {
Self {
view_rect: egui::Rect::from_min_max(
egui::pos2(-10000.0, 10000.0),
egui::pos2(-10000.0, 10000.0),
scene_rect: egui::Rect::from_min_max(
egui::pos2(-10000.0, -10000.0),
egui::pos2(10000.0, 10000.0),
),
ref_scene_rect: egui::Rect::from_min_max(
egui::pos2(-10000.0, -10000.0),
egui::pos2(10000.0, 10000.0),
),
}
}
pub fn update(&mut self, ctx: &egui::Context, workspace: Option<&mut Workspace>) {
egui::CentralPanel::default().show(ctx, |ui| {
let mut scene_rect = self.scene_rect.clone();
egui::Scene::new()
.zoom_range(0.0001..=10000.0)
.show(ui, &mut self.view_rect, |ui| {
.show(ui, &mut scene_rect, |ui| {
if let Some(workspace) = workspace {
let mut displayer = Displayer::new();
displayer.update(ctx, ui, workspace)
displayer.update(ctx, ui, &self, workspace);
}
});
self.scene_rect = scene_rect;
});
}
pub fn scale_factor(&self) -> f32 {
self.ref_scene_rect.width() / self.scene_rect.width()
}
}