obsqrbtz/egui_knob
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another sizing fix

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This commit is contained in:
Daniel Dada
2025-02-03 16:23:23 +03:00
parent 76670f416f
commit 268db4255e
3 changed files with 38 additions and 16 deletions
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26
.vscode/launch.json vendored Normal file
View File

@@ -0,0 +1,26 @@
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"type": "lldb",
"request": "launch",
"name": "Debug example 'example_knob'",
"cargo": {
"args": [
"build",
"--example=example_knob",
"--package=egui_knob"
],
"filter": {
"name": "example_knob",
"kind": "example"
}
},
"args": [],
"cwd": "${workspaceFolder}"
},
]
}

2
examples/example_knob.rs
View File

@@ -33,7 +33,6 @@ impl eframe::App for KnobExample {
.with_label("Gain", egui_knob::LabelPosition::Bottom)
.with_size(50.0),
);
ui.add_space(15.0);
ui.add(
Knob::new(&mut self.value, 0.0, 100.0, egui_knob::KnobStyle::Dot)
.with_label("Gain", egui_knob::LabelPosition::Bottom)
@@ -44,7 +43,6 @@ impl eframe::App for KnobExample {
)
.with_size(50.0),
);
ui.add_space(15.0);
ui.add(
Knob::new(&mut self.value, 0.0, 100.0, egui_knob::KnobStyle::Wiper)
.with_label("Gain", egui_knob::LabelPosition::Bottom)

26
src/lib.rs
View File

@@ -97,16 +97,12 @@ impl Widget for Knob<'_> {
Vec2::ZERO
};
let label_padding = 12.0;
let label_padding = 2.0;
let adjusted_size = match self.label_position {
LabelPosition::Top | LabelPosition::Bottom => {
Vec2::new(knob_size.x, knob_size.y + label_size.y + label_padding)
}
LabelPosition::Left | LabelPosition::Right => {
Vec2::new(knob_size.x + label_size.x + label_padding, knob_size.y)
}
};
let adjusted_size = Vec2::new(
knob_size.x + label_size.y + label_padding * 6.0,
knob_size.y + label_size.y + label_padding * 6.0,
);
let (rect, response) = ui.allocate_exact_size(adjusted_size, Sense::drag());
@@ -156,21 +152,20 @@ impl Widget for Knob<'_> {
)
.size();
let label_offset = label_padding;
let label_pos = match self.label_position {
LabelPosition::Top => {
rect.center()
+ Vec2::new(-text_size.x / 2.0, -radius - label_offset - text_size.y)
+ Vec2::new(-text_size.x / 2.0, -radius - label_padding - text_size.y)
}
LabelPosition::Bottom => {
rect.center() + Vec2::new(-text_size.x / 2.0, radius + label_offset)
rect.center() + Vec2::new(-text_size.x / 2.0, radius + label_padding)
}
LabelPosition::Left => {
rect.center()
+ Vec2::new(-radius - label_offset - text_size.x, -text_size.y / 2.0)
+ Vec2::new(-radius - label_padding - text_size.x, -text_size.y / 2.0)
}
LabelPosition::Right => {
rect.center() + Vec2::new(radius + label_offset, -text_size.y / 2.0)
rect.center() + Vec2::new(radius + label_padding, -text_size.y / 2.0)
}
};
@@ -183,6 +178,9 @@ impl Widget for Knob<'_> {
);
}
// Draw the boundary rectangle
painter.rect_stroke(rect, 0.0, Stroke::new(1.0, Color32::RED));
response
}
}