Sort demo windows (multi-touch demo was out of order)

egui_demo_lib/src/apps/demo/demo_windows.rs

@@ -16,9 +16,9 @@ impl Default for Demos {
         let demos: Vec<Box<dyn super::Demo>> = vec![
             Box::new(super::dancing_strings::DancingStrings::default()),
             Box::new(super::drag_and_drop::DragAndDropDemo::default()),
-            Box::new(super::zoom_rotate::ZoomRotate::default()),
             Box::new(super::font_book::FontBook::default()),
             Box::new(super::DemoWindow::default()),
+            Box::new(super::multi_touch::MultiTouch::default()),
             Box::new(super::painting::Painting::default()),
             Box::new(super::plot_demo::PlotDemo::default()),
             Box::new(super::scrolling::Scrolling::default()),

egui_demo_lib/src/apps/demo/mod.rs

@@ -13,6 +13,7 @@ pub mod font_book;
 pub mod font_contents_emoji;
 pub mod font_contents_ubuntu;
 pub mod layout_test;
+pub mod multi_touch;
 pub mod painting;
 pub mod password;
 pub mod plot_demo;
@@ -23,7 +24,6 @@ pub mod toggle_switch;
 pub mod widget_gallery;
 mod widgets;
 pub mod window_options;
-pub mod zoom_rotate;
 
 pub use {app::*, demo_window::DemoWindow, demo_windows::*, widgets::Widgets};
 

egui_demo_lib/src/apps/demo/multi_touch.rs

@@ -3,7 +3,7 @@ use egui::{
     vec2, Color32, Frame, Pos2, Rect, Sense, Stroke, Vec2,
 };
 
-pub struct ZoomRotate {
+pub struct MultiTouch {
     previous_arrow_start_offset: Vec2,
     rotation: f32,
     smoothed_velocity: Vec2,
@@ -11,7 +11,7 @@ pub struct ZoomRotate {
     zoom: f32,
 }
 
-impl Default for ZoomRotate {
+impl Default for MultiTouch {
     fn default() -> Self {
         Self {
             previous_arrow_start_offset: Vec2::ZERO,
@@ -23,7 +23,7 @@ impl Default for ZoomRotate {
     }
 }
 
-impl super::Demo for ZoomRotate {
+impl super::Demo for MultiTouch {
     fn name(&self) -> &'static str {
         "👌 Multi Touch"
     }
@@ -40,7 +40,7 @@ impl super::Demo for ZoomRotate {
     }
 }
 
-impl super::View for ZoomRotate {
+impl super::View for MultiTouch {
     fn ui(&mut self, ui: &mut egui::Ui) {
         ui.vertical_centered(|ui| {
             ui.add(crate::__egui_github_link_file!());