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Live previews in demo gallery #205

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Live previews in demo gallery #205

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31 changes: 20 additions & 11 deletions demo/src/app.rs
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
use std::fmt::format;
use eframe::egui;
use egui::Color32;
use egui::{Atom, Button, Color32, Id, Sense};
use egui::RichText;
use egui::ScrollArea;
use egui::TextEdit;
Expand Down Expand Up @@ -36,20 +37,20 @@ impl DemoGallery {
let examples: Vec<Box<dyn PlotExample>> = vec![
Box::new(borrow_points::BorrowPointsExample::default()),
Box::new(box_plot::BoxPlotExample::default()),
Box::new(custom_axes::CustomAxesExample::default()),
// Box::new(custom_axes::CustomAxesExample::default()),
Box::new(custom_plot_manipulation::CustomPlotManipulationExample::default()),
Box::new(heatmap::HeatmapDemo::default()),
Box::new(histogram::HistogramExample::default()),
Box::new(interaction::InteractionExample::default()),
Box::new(items::ItemsExample::default()),
Box::new(legend::LegendExample::default()),
Box::new(legend_sort::LegendSortExample::default()),
// Box::new(legend_sort::LegendSortExample::default()),
Box::new(lines::LineExample::default()),
Box::new(linked_axes::LinkedAxesExample::default()),
// Box::new(linked_axes::LinkedAxesExample::default()),
Box::new(markers::MarkerDemo::default()),
Box::new(performance::PerformanceDemo::default()),
Box::new(plot_span::PlotSpanDemo::default()),
Box::new(save_plot::SavePlotExample::default()),
// Box::new(save_plot::SavePlotExample::default()),
Box::new(stacked_bar::StackedBarExample::default()),
];
let thumbnail_textures = Self::load_thumbnails(ctx, &examples);
Expand Down Expand Up @@ -193,17 +194,25 @@ impl DemoGallery {
let is_selected = self.current_example == Some(index);

let button = {
let texture = &self.thumbnail_textures[index];
// TODO(#193): I don't know what units this corresponds to, and should be
// cleaned up.
let image = egui::Image::new((texture.id(), Vec2::splat(110.0 * scale)));
let mut button = egui::Button::image(image);
// the rect of atom_rect_id = what the plot will have
let atom_rect_id = Id::new("my_button").with(index);
let interaction_id = Id::new("my_interaction").with(index);
let response = ui.ctx().read_response(interaction_id);

let mut button = Button::new(Atom::custom(atom_rect_id, Vec2::splat(110.0 * scale)));
if is_selected {
button = button.fill(ui.visuals().selection.bg_fill);
}
if response.is_some_and(|response| response.hovered()) {
button = button.fill(Color32::RED);
}
let atom = button.atom_ui(ui);
let rect = atom.rect(atom_rect_id);

ui.add(button)
if let Some(rect) = rect {
ui.place(rect, |ui: &mut egui::Ui| self.examples[index].show_ui(ui));
}
ui.interact(atom.response.rect, interaction_id, Sense::click_and_drag())
}
.on_hover_text_at_pointer(format!(
"Click to select `{}`\nTags: {}",
Expand Down
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