fixups for latest egui, allow selecting entities in bar chart plot

Author: Wumpf

crates/re_space_view_bar_chart/src/space_view_class.rs

@@ -1,4 +1,4 @@
-use egui::util::hash;
+use egui::{ahash::HashMap, util::hash};
 use re_entity_db::{EditableAutoValue, EntityProperties, LegendCorner};
 use re_log_types::EntityPath;
 use re_space_view::{controls, suggest_space_view_for_each_entity};
@@ -132,11 +132,11 @@ impl SpaceViewClass for BarChartSpaceView {
 
     fn ui(
         &self,
-        _ctx: &ViewerContext<'_>,
+        ctx: &ViewerContext<'_>,
         ui: &mut egui::Ui,
         _state: &mut Self::State,
         root_entity_properties: &EntityProperties,
-        _query: &ViewQuery<'_>,
+        query: &ViewQuery<'_>,
         system_output: re_viewer_context::SystemExecutionOutput,
     ) -> Result<(), SpaceViewSystemExecutionError> {
         use egui_plot::{Bar, BarChart, Legend, Plot};
@@ -164,7 +164,13 @@ impl SpaceViewClass for BarChartSpaceView {
                 );
             }
 
-            plot.show(ui, |plot_ui| {
+            let mut plot_item_id_to_entity_path = HashMap::default();
+
+            let egui_plot::PlotResponse {
+                response,
+                hovered_plot_item,
+                ..
+            } = plot.show(ui, |plot_ui| {
                 fn create_bar_chart<N: Into<f64>>(
                     ent_path: &EntityPath,
                     values: impl Iterator<Item = N>,
@@ -251,9 +257,26 @@ impl SpaceViewClass for BarChartSpaceView {
                         }
                     };
 
+                    let id = egui::Id::new(ent_path.hash());
+                    plot_item_id_to_entity_path.insert(id, ent_path.clone());
+                    let chart = chart.id(id);
+
                     plot_ui.bar_chart(chart);
                 }
             });
+
+            // Interact with the plot items.
+            if let Some(entity_path) = hovered_plot_item
+                .and_then(|hovered_plot_item| plot_item_id_to_entity_path.get(&hovered_plot_item))
+            {
+                ctx.select_hovered_on_click(
+                    &response,
+                    re_viewer_context::Item::InstancePath(
+                        Some(query.space_view_id),
+                        entity_path.clone().into(),
+                    ),
+                );
+            }
         });
 
         Ok(())

crates/re_space_view_spatial/src/ui.rs

@@ -393,13 +393,13 @@ pub fn outline_config(gui_ctx: &egui::Context) -> OutlineConfig {
 
 pub fn screenshot_context_menu(
     _ctx: &ViewerContext<'_>,
-    response: egui::Response,
-) -> (egui::Response, Option<ScreenshotMode>) {
+    response: &egui::Response,
+) -> Option<ScreenshotMode> {
     #[cfg(not(target_arch = "wasm32"))]
     {
         if _ctx.app_options.experimental_space_view_screenshots {
             let mut take_screenshot = None;
-            let response = response.context_menu(|ui| {
+            response.context_menu(|ui| {
                 ui.style_mut().wrap = Some(false);
                 if ui.button("Save screenshot to disk").clicked() {
                     take_screenshot = Some(ScreenshotMode::SaveAndCopyToClipboard);
@@ -409,14 +409,14 @@ pub fn screenshot_context_menu(
                     ui.close_menu();
                 }
             });
-            (response, take_screenshot)
+            take_screenshot
         } else {
-            (response, None)
+            None
         }
     }
     #[cfg(target_arch = "wasm32")]
     {
-        (response, None)
+        None
     }
 }
 
@@ -661,7 +661,7 @@ pub fn picking(
         });
     };
 
-    ctx.select_hovered_on_click( &response, re_viewer_context::Selection(hovered_items));
+    ctx.select_hovered_on_click(&response, re_viewer_context::Selection(hovered_items));
 
     Ok(response)
 }

crates/re_space_view_spatial/src/ui_2d.rs

@@ -355,8 +355,7 @@ pub fn view_2d(
         // ------------------------------------------------------------------------
 
         // Screenshot context menu.
-        let (_, screenshot_mode) = screenshot_context_menu(ctx, response);
-        if let Some(mode) = screenshot_mode {
+        if let Some(mode) = screenshot_context_menu(ctx, &response) {
             view_builder
                 .schedule_screenshot(ctx.render_ctx, query.space_view_id.gpu_readback_id(), mode)
                 .ok();

crates/re_space_view_spatial/src/ui_3d.rs

@@ -581,8 +581,7 @@ pub fn view_3d(
     }
 
     // Screenshot context menu.
-    let (_, screenshot_mode) = screenshot_context_menu(ctx, response);
-    if let Some(mode) = screenshot_mode {
+    if let Some(mode) = screenshot_context_menu(ctx, &response) {
         view_builder
             .schedule_screenshot(ctx.render_ctx, query.space_view_id.gpu_readback_id(), mode)
             .ok();

crates/re_space_view_time_series/src/space_view_class.rs

@@ -426,16 +426,16 @@ impl SpaceViewClass for TimeSeriesSpaceView {
         });
 
         // Interact with the plot items (lines, scatters, etc.)
-        if let Some(hovered_plot_item) = hovered_plot_item {
-            if let Some(entity_path) = plot_item_id_to_entity_path.get(&hovered_plot_item) {
-                ctx.select_hovered_on_click(
-                    &response,
-                    re_viewer_context::Item::InstancePath(
-                        Some(query.space_view_id),
-                        entity_path.clone().into(),
-                    ),
-                );
-            }
+        if let Some(entity_path) = hovered_plot_item
+            .and_then(|hovered_plot_item| plot_item_id_to_entity_path.get(&hovered_plot_item))
+        {
+            ctx.select_hovered_on_click(
+                &response,
+                re_viewer_context::Item::InstancePath(
+                    Some(query.space_view_id),
+                    entity_path.clone().into(),
+                ),
+            );
         }
 
         if let Some(time_x) = time_x {

crates/re_viewer/src/ui/selection_history_ui.rs

@@ -43,7 +43,7 @@ impl SelectionHistoryUi {
                 ));
 
             let mut return_current = false;
-            let response = response.context_menu(|ui| {
+            response.context_menu(|ui| {
                 // undo: newest on top, oldest on bottom
                 let cur = history.current;
                 for i in (0..history.current).rev() {
@@ -93,7 +93,7 @@ impl SelectionHistoryUi {
                 ));
 
             let mut return_current = false;
-            let response = response.context_menu(|ui| {
+            response.context_menu(|ui| {
                 // redo: oldest on top, most recent on bottom
                 let cur = history.current;
                 for i in (history.current + 1)..history.stack.len() {