74 lines
2.3 KiB
Rust
74 lines
2.3 KiB
Rust
use egui::emath::NumExt as _;
|
|
use egui::epaint::{Color32, Rgba, Stroke};
|
|
|
|
use crate::transform::{PlotBounds, PlotTransform};
|
|
|
|
use super::{Orientation, PlotPoint};
|
|
|
|
/// Trait that abstracts from rectangular 'Value'-like elements, such as bars or boxes
|
|
pub(super) trait RectElement {
|
|
fn name(&self) -> &str;
|
|
|
|
fn bounds_min(&self) -> PlotPoint;
|
|
|
|
fn bounds_max(&self) -> PlotPoint;
|
|
|
|
fn bounds(&self) -> PlotBounds {
|
|
let mut bounds = PlotBounds::NOTHING;
|
|
bounds.extend_with(&self.bounds_min());
|
|
bounds.extend_with(&self.bounds_max());
|
|
bounds
|
|
}
|
|
|
|
/// At which argument (input; usually X) there is a ruler (usually vertical)
|
|
fn arguments_with_ruler(&self) -> Vec<PlotPoint> {
|
|
// Default: one at center
|
|
vec![self.bounds().center()]
|
|
}
|
|
|
|
/// At which value (output; usually Y) there is a ruler (usually horizontal)
|
|
fn values_with_ruler(&self) -> Vec<PlotPoint>;
|
|
|
|
/// The diagram's orientation (vertical/horizontal)
|
|
fn orientation(&self) -> Orientation;
|
|
|
|
/// Get X/Y-value for (argument, value) pair, taking into account orientation
|
|
fn point_at(&self, argument: f64, value: f64) -> PlotPoint {
|
|
match self.orientation() {
|
|
Orientation::Horizontal => PlotPoint::new(value, argument),
|
|
Orientation::Vertical => PlotPoint::new(argument, value),
|
|
}
|
|
}
|
|
|
|
/// Right top of the rectangle (position of text)
|
|
fn corner_value(&self) -> PlotPoint {
|
|
//self.point_at(self.position + self.width / 2.0, value)
|
|
PlotPoint {
|
|
x: self.bounds_max().x,
|
|
y: self.bounds_max().y,
|
|
}
|
|
}
|
|
|
|
/// Debug formatting for hovered-over value, if none is specified by the user
|
|
fn default_values_format(&self, transform: &PlotTransform) -> String;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Helper functions
|
|
|
|
pub(super) fn highlighted_color(mut stroke: Stroke, fill: Color32) -> (Stroke, Color32) {
|
|
stroke.width *= 2.0;
|
|
|
|
let mut fill = Rgba::from(fill);
|
|
if fill.is_additive() {
|
|
// Make slightly brighter
|
|
fill = 1.3 * fill;
|
|
} else {
|
|
// Make more opaque:
|
|
let fill_alpha = (2.0 * fill.a()).at_most(1.0);
|
|
fill = fill.to_opaque().multiply(fill_alpha);
|
|
}
|
|
|
|
(stroke, fill.into())
|
|
}
|