mirror of
https://github.com/obsqrbtz/egui_knob.git
synced 2026-04-09 04:29:10 +03:00
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9 Commits
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| 421dd3ff60 | |||
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| f5b4bb7728 |
26
.vscode/launch.json
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26
.vscode/launch.json
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@@ -0,0 +1,26 @@
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{
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// Use IntelliSense to learn about possible attributes.
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// Hover to view descriptions of existing attributes.
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// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
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"version": "0.2.0",
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"configurations": [
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{
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"type": "lldb",
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"request": "launch",
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"name": "Debug example 'example_knob'",
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"cargo": {
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"args": [
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"build",
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"--example=example_knob",
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"--package=egui_knob"
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],
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"filter": {
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"name": "example_knob",
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"kind": "example"
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}
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},
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"args": [],
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"cwd": "${workspaceFolder}"
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},
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]
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}
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2
Cargo.lock
generated
2
Cargo.lock
generated
@@ -896,7 +896,7 @@ dependencies = [
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[[package]]
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[[package]]
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name = "egui_knob"
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name = "egui_knob"
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version = "0.1.2"
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version = "0.1.5"
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dependencies = [
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dependencies = [
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"eframe",
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"eframe",
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"egui",
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"egui",
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@@ -1,6 +1,6 @@
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[package]
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[package]
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name = "egui_knob"
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name = "egui_knob"
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version = "0.1.2"
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version = "0.1.5"
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edition = "2021"
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edition = "2021"
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description = "A simple knob widget for egui"
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description = "A simple knob widget for egui"
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homepage = "https://github.com/obsqrbtz/egui_knob"
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homepage = "https://github.com/obsqrbtz/egui_knob"
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@@ -20,7 +20,7 @@ To use the Knob widget in your project, add the following to your `Cargo.toml`:
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```toml
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```toml
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[dependencies]
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[dependencies]
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egui = "0.30"
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egui = "0.30"
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egui_knob = "0.1.1"
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egui_knob = "*"
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```
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```
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## Usage example
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## Usage example
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@@ -33,7 +33,6 @@ impl eframe::App for KnobExample {
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.with_label("Gain", egui_knob::LabelPosition::Bottom)
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.with_label("Gain", egui_knob::LabelPosition::Bottom)
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.with_size(50.0),
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.with_size(50.0),
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);
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);
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ui.add_space(15.0);
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ui.add(
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ui.add(
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Knob::new(&mut self.value, 0.0, 100.0, egui_knob::KnobStyle::Dot)
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Knob::new(&mut self.value, 0.0, 100.0, egui_knob::KnobStyle::Dot)
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.with_label("Gain", egui_knob::LabelPosition::Bottom)
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.with_label("Gain", egui_knob::LabelPosition::Bottom)
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@@ -44,7 +43,6 @@ impl eframe::App for KnobExample {
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)
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)
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.with_size(50.0),
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.with_size(50.0),
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);
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);
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ui.add_space(15.0);
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ui.add(
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ui.add(
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Knob::new(&mut self.value, 0.0, 100.0, egui_knob::KnobStyle::Wiper)
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Knob::new(&mut self.value, 0.0, 100.0, egui_knob::KnobStyle::Wiper)
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.with_label("Gain", egui_knob::LabelPosition::Bottom)
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.with_label("Gain", egui_knob::LabelPosition::Bottom)
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27
src/lib.rs
27
src/lib.rs
@@ -81,7 +81,7 @@ impl<'a> Knob<'a> {
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impl Widget for Knob<'_> {
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impl Widget for Knob<'_> {
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fn ui(self, ui: &mut Ui) -> Response {
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fn ui(self, ui: &mut Ui) -> Response {
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let desired_size = Vec2::splat(self.size);
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let knob_size = Vec2::splat(self.size);
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let label_size = if let Some(label) = &self.label {
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let label_size = if let Some(label) = &self.label {
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let font_id = egui::FontId::proportional(self.font_size);
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let font_id = egui::FontId::proportional(self.font_size);
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@@ -97,8 +97,13 @@ impl Widget for Knob<'_> {
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Vec2::ZERO
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Vec2::ZERO
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};
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};
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// Adjust desired size to include label space
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let label_padding = 2.0;
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let adjusted_size = Vec2::new(desired_size.x, desired_size.y + label_size.y + 12.0); // 12.0 is an offset for spacing
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let adjusted_size = Vec2::new(
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knob_size.x + label_size.y + label_padding * 6.0,
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knob_size.y + label_size.y + label_padding * 6.0,
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);
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let (rect, response) = ui.allocate_exact_size(adjusted_size, Sense::drag());
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let (rect, response) = ui.allocate_exact_size(adjusted_size, Sense::drag());
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if response.dragged() {
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if response.dragged() {
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@@ -110,7 +115,7 @@ impl Widget for Knob<'_> {
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let painter = ui.painter();
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let painter = ui.painter();
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let center = rect.center();
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let center = rect.center();
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let radius = rect.width() / 2.0;
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let radius = knob_size.x / 2.0;
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let angle = (*self.value - self.min) / (self.max - self.min) * std::f32::consts::PI * 1.5
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let angle = (*self.value - self.min) / (self.max - self.min) * std::f32::consts::PI * 1.5
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- std::f32::consts::PI;
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- std::f32::consts::PI;
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@@ -147,19 +152,20 @@ impl Widget for Knob<'_> {
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)
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)
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.size();
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.size();
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let label_offset = 12.0;
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let label_pos = match self.label_position {
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let label_pos = match self.label_position {
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LabelPosition::Top => {
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LabelPosition::Top => {
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center + Vec2::new(-text_size.x / 2.0, -radius - label_offset - text_size.y)
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rect.center()
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+ Vec2::new(-text_size.x / 2.0, -radius - label_padding - text_size.y)
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}
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}
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LabelPosition::Bottom => {
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LabelPosition::Bottom => {
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center + Vec2::new(-text_size.x / 2.0, radius + label_offset)
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rect.center() + Vec2::new(-text_size.x / 2.0, radius + label_padding)
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}
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}
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LabelPosition::Left => {
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LabelPosition::Left => {
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center + Vec2::new(-radius - label_offset - text_size.x, -text_size.y / 2.0)
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rect.center()
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+ Vec2::new(-radius - label_padding - text_size.x, -text_size.y / 2.0)
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}
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}
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LabelPosition::Right => {
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LabelPosition::Right => {
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center + Vec2::new(radius + label_offset, -text_size.y / 2.0)
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rect.center() + Vec2::new(radius + label_padding, -text_size.y / 2.0)
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}
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}
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};
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};
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@@ -172,6 +178,9 @@ impl Widget for Knob<'_> {
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);
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);
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}
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}
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// Draw the boundary rectangle
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painter.rect_stroke(rect, 0.0, Stroke::new(1.0, Color32::RED));
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response
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response
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}
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}
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}
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}
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