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Determine position of plot based on layout direction #256

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Merged
lucasmerlin merged 3 commits into from
Oct 19, 2026
Merged

Determine position of plot based on layout direction #256

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938a15b
determine position of widget based on layout direction
tarolling Aug 23, 2026
1e95ffd
Use allocate_space
lucasmerlin Oct 19, 2026
ff8a342
Merge branch 'main' into plots-ignore-ui-layout
lucasmerlin Oct 19, 2026
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15 changes: 5 additions & 10 deletions egui_plot/src/plot.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -827,10 +827,8 @@ impl<'a> Plot<'a> {
self.show_dyn(ui, Box::new(build_fn))
}

/// Calculate the rect inside which everything will be drawn.
fn calculate_widget_complete_rect(&self, ui: &Ui) -> Rect {
// Determine position of widget.
let pos = ui.available_rect_before_wrap().min;
/// Allocate the rect inside which everything will be drawn.
fn allocate_widget_complete_rect(&self, ui: &mut Ui) -> Rect {
// Minimum values for screen protection
let mut min_size = self.min_size;
min_size.x = min_size.x.at_least(1.0);
Expand Down Expand Up @@ -862,11 +860,8 @@ impl<'a> Plot<'a> {
vec2(width, height)
};

// Determine complete rect of widget.
Rect {
min: pos,
max: pos + size,
}
// Let the layout place the widget, so we respect its direction, alignment and wrapping.
ui.allocate_space(size).1
}

fn allocate_axis_responses(&self, ui: &mut Ui, axis_widgets: &AxisWidgets<'_>) -> AxisResponses {
Expand Down Expand Up @@ -1635,7 +1630,7 @@ impl<'a> Plot<'a> {
let plot_id = self.id.unwrap_or_else(|| ui.make_persistent_id(self.id_salt));

// Get complete rect for drawing.
let complete_rect = self.calculate_widget_complete_rect(ui);
let complete_rect = self.allocate_widget_complete_rect(ui);

let (axis_widgets, plot_rect) = axis_widgets(
PlotMemory::load(ui.ctx(), plot_id).as_ref(), // TODO(#164): avoid loading plot memory twice
Expand Down
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