dummy example

Cargo.toml

@@ -8,7 +8,10 @@ edition = "2018"
 crate_type = "bin"
 
 [dependencies]
+clipboard = "^0.5.0"
 dirs = "^3.0.1"
-iced = "^0.1.1"
+glium = "^0.27.0"
+imgui = "^0.5.0"
+imgui-glium-renderer = "^0.5.0"
+imgui-winit-support = "^0.5.0"
 rodio = "^0.11.0"
-env_logger = "^0.8.1"

src/main.rs

@@ -1,80 +1,17 @@
 #![windows_subsystem = "windows"]
 
-use iced::{Settings, Application, Element, executor, Length, Container, Column, Scrollable, Slider};
 use rodio::{Sink, Source};
 use std::env::args;
 use std::fs::File;
 use std::io::BufReader;
 use std::path::PathBuf;
 use std::process::Command;
+use imgui::*;
+
+mod support;
 
 const SPACING: i32 = 16;
-
+//
-struct Sound {
-    name: String,
-    path: String, // bytes instead?
-    sink: Sink,
-    volume: f32,
-}
-
-/// todo: maybe add a play/pause state or global volume? saved presets?
-struct State {
-    sounds: Vec<Sound>
-}
-
-enum Lull {
-    Loading,
-    Loaded(State),
-}
-
-impl Application for Lull {
-    type Executor = executor::Default;
-    type Message = Message;
-    type Flags = ();
-
-    fn new(_flags: Self::Flags) -> (Self, Command) {
-        (
-            Lull {sounds: Vec::new()},
-            Command::none(),
-        )
-    }
-
-    fn title(&self) -> String {
-        String::from("lull")
-    }
-
-    fn update(&mut self, message: Self::Message) -> Command {
-        match self {
-            self::Loading => {},
-            self::Loaded => {},
-        }
-
-        Command::none()
-    }
-
-    fn view(&mut self) -> Element<'_, Self::Message> {
-        unimplemented!()
-    }
-}
-
-fn get_data_dir() -> PathBuf {
-    let mut data_dir = dirs::data_dir().expect("Couldn't find user data directory");
-
-    data_dir.push("ruin/lull");
-
-    if !data_dir.exists() {
-        std::fs::create_dir_all(&data_dir).expect("Couldn't create lull data directory");
-    }
-
-    data_dir
-}
-
-pub fn main() -> iced::Result {
-    env_logger::init();
-
-    Lull::run(Settings::default())
-}
-
 // fn error_popup(message: &str) {
 //     let popup = gtk::Window::new(gtk::WindowType::Toplevel);
 //     popup.set_title("error");
@@ -98,6 +35,18 @@ pub fn main() -> iced::Result {
 //     });
 // }
 
+fn get_data_dir() -> PathBuf {
+    let mut data_dir = dirs::data_dir().expect("Couldn't find user data directory");
+
+    data_dir.push("ruin/lull");
+
+    if !data_dir.exists() {
+        std::fs::create_dir_all(&data_dir).expect("Couldn't create lull data directory");
+    }
+
+    data_dir
+}
+//
 // fn build_ui(application: &gtk::Application) {
 //     let window = gtk::ApplicationWindow::new(application);
 //
@@ -196,3 +145,23 @@ pub fn main() -> iced::Result {
 //
 //     window.show_all();
 // }
+
+fn main() {
+    let system = support::init(file!());
+
+    system.main_loop(move |_, ui| {
+        Window::new(im_str!("Hello world"))
+            .size([300.0, 100.0], Condition::FirstUseEver)
+            .build(&ui, || {
+                ui.text(im_str!("Hello world!"));
+                ui.text(im_str!("こんにちは世界！"));
+                ui.text(im_str!("This...is...imgui-rs!"));
+                ui.separator();
+                let mouse_pos = ui.io().mouse_pos;
+                ui.text(format!(
+                    "Mouse Position: ({:.1},{:.1})",
+                    mouse_pos[0], mouse_pos[1]
+                ));
+            });
+    });
+}

src/support/clipboard.rs

@@ -0,0 +1,19 @@
+use clipboard::{ClipboardContext, ClipboardProvider};
+use imgui::{ClipboardBackend, ImStr, ImString};
+
+pub struct ClipboardSupport(ClipboardContext);
+
+pub fn init() -> Option<ClipboardSupport> {
+    ClipboardContext::new()
+        .ok()
+        .map(|ctx| ClipboardSupport(ctx))
+}
+
+impl ClipboardBackend for ClipboardSupport {
+    fn get(&mut self) -> Option<ImString> {
+        self.0.get_contents().ok().map(|text| text.into())
+    }
+    fn set(&mut self, text: &ImStr) {
+        let _ = self.0.set_contents(text.to_str().to_owned());
+    }
+}

src/support/mod.rs

@@ -0,0 +1,140 @@
+use glium::glutin;
+use glium::glutin::event::{Event, WindowEvent};
+use glium::glutin::event_loop::{ControlFlow, EventLoop};
+use glium::glutin::window::WindowBuilder;
+use glium::{Display, Surface};
+use imgui::{Context, FontConfig, FontGlyphRanges, FontSource, Ui};
+use imgui_glium_renderer::Renderer;
+use imgui_winit_support::{HiDpiMode, WinitPlatform};
+use std::time::Instant;
+
+mod clipboard;
+
+pub struct System {
+    pub event_loop: EventLoop<()>,
+    pub display: glium::Display,
+    pub imgui: Context,
+    pub platform: WinitPlatform,
+    pub renderer: Renderer,
+    pub font_size: f32,
+}
+
+pub fn init(title: &str) -> System {
+    let title = match title.rfind('/') {
+        Some(idx) => title.split_at(idx + 1).1,
+        None => title,
+    };
+    let event_loop = EventLoop::new();
+    let context = glutin::ContextBuilder::new().with_vsync(true);
+    let builder = WindowBuilder::new()
+        .with_title(title.to_owned())
+        .with_inner_size(glutin::dpi::LogicalSize::new(1024f64, 768f64));
+    let display =
+        Display::new(builder, context, &event_loop).expect("Failed to initialize display");
+
+    let mut imgui = Context::create();
+    imgui.set_ini_filename(None);
+
+    if let Some(backend) = clipboard::init() {
+        imgui.set_clipboard_backend(Box::new(backend));
+    } else {
+        eprintln!("Failed to initialize clipboard");
+    }
+
+    let mut platform = WinitPlatform::init(&mut imgui);
+    {
+        let gl_window = display.gl_window();
+        let window = gl_window.window();
+        platform.attach_window(imgui.io_mut(), &window, HiDpiMode::Rounded);
+    }
+
+    let hidpi_factor = platform.hidpi_factor();
+    let font_size = (13.0 * hidpi_factor) as f32;
+    imgui.fonts().add_font(&[
+        FontSource::DefaultFontData {
+            config: Some(FontConfig {
+                size_pixels: font_size,
+                ..FontConfig::default()
+            }),
+        },
+        FontSource::TtfData {
+            data: include_bytes!("helsinki.ttf"),
+            size_pixels: font_size,
+            config: Some(FontConfig {
+                rasterizer_multiply: 1.75,
+                glyph_ranges: FontGlyphRanges::japanese(),
+                ..FontConfig::default()
+            }),
+        },
+    ]);
+
+    imgui.io_mut().font_global_scale = (1.0 / hidpi_factor) as f32;
+
+    let renderer = Renderer::init(&mut imgui, &display)
+        .expect("Failed to initialize renderer");
+
+    System {
+        event_loop,
+        display,
+        imgui,
+        platform,
+        renderer,
+        font_size,
+    }
+}
+
+impl System {
+    pub fn main_loop<F: FnMut(&mut bool, &mut Ui) + 'static>(self, mut run_ui: F) {
+        let System {
+            event_loop,
+            display,
+            mut imgui,
+            mut platform,
+            mut renderer,
+            ..
+        } = self;
+        let mut last_frame = Instant::now();
+
+        event_loop.run(move |event, _, control_flow| match event {
+            Event::NewEvents(_) => {
+                let now = Instant::now();
+                imgui.io_mut().update_delta_time(now - last_frame);
+                last_frame = now;
+            }
+            Event::MainEventsCleared => {
+                let gl_window = display.gl_window();
+                platform
+                    .prepare_frame(imgui.io_mut(), &gl_window.window())
+                    .expect("Failed to prepare frame");
+                gl_window.window().request_redraw();
+            }
+            Event::RedrawRequested(_) => {
+                let mut ui = imgui.frame();
+
+                let mut run = true;
+                run_ui(&mut run, &mut ui);
+                if !run {
+                    *control_flow = ControlFlow::Exit;
+                }
+
+                let gl_window = display.gl_window();
+                let mut target = display.draw();
+                target.clear_color_srgb(1.0, 1.0, 1.0, 1.0);
+                platform.prepare_render(&ui, gl_window.window());
+                let draw_data = ui.render();
+                renderer
+                    .render(&mut target, draw_data)
+                    .expect("Rendering failed");
+                target.finish().expect("Failed to swap buffers");
+            }
+            Event::WindowEvent {
+                event: WindowEvent::CloseRequested,
+                ..
+            } => *control_flow = ControlFlow::Exit,
+            event => {
+                let gl_window = display.gl_window();
+                platform.handle_event(imgui.io_mut(), gl_window.window(), &event);
+            }
+        })
+    }
+}