fun large profile grid preview

Signed-off-by: William Casarin <jb55@jb55.com>

src/ui/profile/picture.rs

@@ -1,5 +1,5 @@
 use crate::imgcache::ImageCache;
-
+use crate::ui::{Preview, View};
 use egui::{vec2, Sense, TextureHandle};
 
 pub struct ProfilePic<'cache, 'url> {
@@ -97,3 +97,63 @@ fn paint_circle(ui: &mut egui::Ui, size: f32) -> egui::Response {
 
     response
 }
+
+mod preview {
+    use super::*;
+    use nostrdb::*;
+    use std::collections::HashSet;
+
+    pub struct ProfilePicPreview {
+        cache: ImageCache,
+        urls: Vec<String>,
+    }
+
+    impl ProfilePicPreview {
+        fn new() -> Self {
+            let config = Config::new();
+            let ndb = Ndb::new(".", &config).expect("ndb");
+            let txn = Transaction::new(&ndb).unwrap();
+            let filters = vec![Filter::new().kinds(vec![0]).build()];
+            let cache = ImageCache::new("cache/img".into());
+            let mut pks = HashSet::new();
+            let mut urls = HashSet::new();
+
+            for query_result in ndb.query(&txn, filters, 1000).unwrap() {
+                pks.insert(query_result.note.pubkey());
+            }
+
+            for pk in pks {
+                let profile = if let Ok(profile) = ndb.get_profile_by_pubkey(&txn, pk) {
+                    profile
+                } else {
+                    continue;
+                };
+                if let Some(url) = profile.record().profile().and_then(|p| p.picture()) {
+                    urls.insert(url.to_string());
+                }
+            }
+
+            let urls = urls.into_iter().collect();
+
+            ProfilePicPreview { cache, urls }
+        }
+    }
+
+    impl View for ProfilePicPreview {
+        fn ui(&mut self, ui: &mut egui::Ui) {
+            ui.horizontal_wrapped(|ui| {
+                for url in &self.urls {
+                    ui.add(ProfilePic::new(&mut self.cache, &url));
+                }
+            });
+        }
+    }
+
+    impl<'cache, 'url> Preview for ProfilePic<'cache, 'url> {
+        type Prev = ProfilePicPreview;
+
+        fn preview() -> Self::Prev {
+            ProfilePicPreview::new()
+        }
+    }
+}

src/ui/relay.rs

@@ -193,7 +193,7 @@ mod preview {
     impl View for RelayViewPreview {
         fn ui(&mut self, ui: &mut egui::Ui) {
             self.pool.try_recv();
-            RelayView::new(RelayPoolManager::new(&mut self.pool)).ui(ui)
+            RelayView::new(RelayPoolManager::new(&mut self.pool)).ui(ui);
         }
     }
 

src/ui_preview/main.rs

@@ -2,7 +2,7 @@ use notedeck::account_login_view::AccountLoginView;
 use notedeck::app_creation::{
     generate_mobile_emulator_native_options, generate_native_options, setup_cc,
 };
-use notedeck::ui::{Preview, PreviewApp, ProfilePreview, RelayView};
+use notedeck::ui::{Preview, PreviewApp, ProfilePreview, RelayView, ProfilePic};
 use std::env;
 
 struct PreviewRunner {
@@ -73,5 +73,5 @@ async fn main() {
 
     let runner = PreviewRunner::new(is_mobile);
 
-    previews!(runner, name, RelayView, AccountLoginView, ProfilePreview,);
+    previews!(runner, name, RelayView, AccountLoginView, ProfilePreview, ProfilePic);
 }