dummy example

Cargo.toml

@@ -8,7 +8,10 @@ edition = "2018"
 crate_type = "bin"
 
 [dependencies]
+clipboard = "^0.5.0"
 dirs = "^3.0.1"
-gio = "^0"
+glium = "^0.27.0"
-gtk = "^0"
+imgui = "^0.5.0"
+imgui-glium-renderer = "^0.5.0"
+imgui-winit-support = "^0.5.0"
 rodio = "^0.11.0"

src/main.rs

@@ -1,39 +1,39 @@
 #![windows_subsystem = "windows"]
 
-use gio::prelude::*;
-use gtk::prelude::*;
-use gtk::Orientation;
 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;
-
+//
-fn error_popup(message: &str) {
+// fn error_popup(message: &str) {
-    let popup = gtk::Window::new(gtk::WindowType::Toplevel);
+//     let popup = gtk::Window::new(gtk::WindowType::Toplevel);
-    popup.set_title("error");
+//     popup.set_title("error");
-    popup.set_border_width(SPACING as u32);
+//     popup.set_border_width(SPACING as u32);
-    popup.set_position(gtk::WindowPosition::Center);
+//     popup.set_position(gtk::WindowPosition::Center);
-    popup.set_default_size(256, 64);
+//     popup.set_default_size(256, 64);
-
+//
-    let vertical = gtk::Box::new(Orientation::Vertical, SPACING);
+//     let vertical = gtk::Box::new(Orientation::Vertical, SPACING);
-    popup.add(&vertical);
+//     popup.add(&vertical);
-
+//
-    let message = gtk::Label::new(Some(message));
+//     let message = gtk::Label::new(Some(message));
-    vertical.add(&message);
+//     vertical.add(&message);
-
+//
-    let button_ok = gtk::Button::with_label("OK");
+//     let button_ok = gtk::Button::with_label("OK");
-    vertical.add(&button_ok);
+//     vertical.add(&button_ok);
-
+//
-    popup.show_all();
+//     popup.show_all();
-
+//
-    button_ok.connect_clicked(move |_| unsafe {
+//     button_ok.connect_clicked(move |_| unsafe {
-        popup.destroy();
+//         popup.destroy();
-    });
+//     });
-}
+// }
 
 fn get_data_dir() -> PathBuf {
     let mut data_dir = dirs::data_dir().expect("Couldn't find user data directory");
@@ -46,115 +46,122 @@ fn get_data_dir() -> PathBuf {
 
     data_dir
 }
-
+//
-fn build_ui(application: &gtk::Application) {
+// fn build_ui(application: &gtk::Application) {
-    let window = gtk::ApplicationWindow::new(application);
+//     let window = gtk::ApplicationWindow::new(application);
-
+//
-    window.set_title("lull");
+//     window.set_title("lull");
-    window.set_border_width(SPACING as u32);
+//     window.set_border_width(SPACING as u32);
-    window.set_position(gtk::WindowPosition::Center);
+//     window.set_position(gtk::WindowPosition::Center);
-    window.set_default_size(256, 256);
+//     window.set_default_size(256, 256);
-
+//
-    let vertical = gtk::Box::new(Orientation::Vertical, SPACING);
+//     let vertical = gtk::Box::new(Orientation::Vertical, SPACING);
-    vertical.set_homogeneous(true);
+//     vertical.set_homogeneous(true);
-
+//
-    window.add(&vertical);
+//     window.add(&vertical);
-
+//
-    let device = rodio::default_output_device().unwrap();
+//     let device = rodio::default_output_device().unwrap();
-
+//
-    let paths = std::fs::read_dir(get_data_dir())
+//     let paths = std::fs::read_dir(get_data_dir())
-        .expect("Couldn't read from lull data directory");
+//         .expect("Couldn't read from lull data directory");
-
+//
-    for path in paths {
+//     for path in paths {
-        let path = path.unwrap().path();
+//         let path = path.unwrap().path();
-        let name: &str = path.file_stem().unwrap().to_str().unwrap();
+//         let name: &str = path.file_stem().unwrap().to_str().unwrap();
-
+//
-        let file = File::open(&path)
+//         let file = File::open(&path)
-            .expect("Couldn't open audio file");
+//             .expect("Couldn't open audio file");
-
+//
-        let source = rodio::Decoder::new(
+//         let source = rodio::Decoder::new(
-            BufReader::new(file)
+//             BufReader::new(file)
-        );
+//         );
-
+//
-        if source.is_err() {
+//         if source.is_err() {
-            error_popup(&format!(
+//             error_popup(&format!(
-                "Couldn't parse file {}. \n{}.",
+//                 "Couldn't parse file {}. \n{}.",
-                path.to_str().unwrap(),
+//                 path.to_str().unwrap(),
-                source.err().unwrap()
+//                 source.err().unwrap()
-            ));
+//             ));
-            continue;
+//             continue;
-        }
+//         }
-
+//
-        let source = source.unwrap().repeat_infinite();
+//         let source = source.unwrap().repeat_infinite();
-
+//
-        let sink = Sink::new(&device);
+//         let sink = Sink::new(&device);
-        sink.append(source);
+//         sink.append(source);
-        sink.pause();
+//         sink.pause();
-
+//
-        let row = gtk::Box::new(Orientation::Horizontal, SPACING);
+//         let row = gtk::Box::new(Orientation::Horizontal, SPACING);
-        row.set_homogeneous(true);
+//         row.set_homogeneous(true);
-
+//
-        let label = gtk::Label::new(Some(name));
+//         let label = gtk::Label::new(Some(name));
-        row.add(&label);
+//         row.add(&label);
-
+//
-        let adjustment = gtk::Adjustment::new(
+//         let adjustment = gtk::Adjustment::new(
-            0.0,
+//             0.0,
-            0.0,
+//             0.0,
-            1.0,
+//             1.0,
-            0.0,
+//             0.0,
-            0.0,
+//             0.0,
-            0.0
+//             0.0
-        );
+//         );
-
+//
-        let slider = gtk::Scale::new(
+//         let slider = gtk::Scale::new(
-            Orientation::Horizontal,
+//             Orientation::Horizontal,
-            Some(&adjustment)
+//             Some(&adjustment)
-        );
+//         );
-
+//
-        slider.set_draw_value(false);
+//         slider.set_draw_value(false);
-
+//
-        slider.connect_value_changed(move |scale| {
+//         slider.connect_value_changed(move |scale| {
-            let volume = scale.get_value();
+//             let volume = scale.get_value();
-
+//
-            if volume == 0. {
+//             if volume == 0. {
-                sink.pause();
+//                 sink.pause();
-            } else {
+//             } else {
-                sink.play();
+//                 sink.play();
-                sink.set_volume(volume as f32);
+//                 sink.set_volume(volume as f32);
-            }
+//             }
-        });
+//         });
-
+//
-        row.add(&slider);
+//         row.add(&slider);
-
+//
-        vertical.add(&row);
+//         vertical.add(&row);
-    }
+//     }
-
+//
-    let row_add = gtk::Box::new(Orientation::Horizontal, SPACING);
+//     let row_add = gtk::Box::new(Orientation::Horizontal, SPACING);
-    row_add.set_homogeneous(true);
+//     row_add.set_homogeneous(true);
-
+//
-    let button_manage_sounds = gtk::Button::with_label("manage sounds");
+//     let button_manage_sounds = gtk::Button::with_label("manage sounds");
-
+//
-    button_manage_sounds.connect_clicked(|_| {
+//     button_manage_sounds.connect_clicked(|_| {
-        let mut file_manager = Command::new("xdg-open");
+//         let mut file_manager = Command::new("xdg-open");
-        file_manager.arg(get_data_dir());
+//         file_manager.arg(get_data_dir());
-        file_manager.output().unwrap();
+//         file_manager.output().unwrap();
-    });
+//     });
-
+//
-    row_add.add(&button_manage_sounds);
+//     row_add.add(&button_manage_sounds);
-    vertical.add(&row_add);
+//     vertical.add(&row_add);
-
+//
-    window.show_all();
+//     window.show_all();
-}
+// }
 
 fn main() {
-    let application = gtk::Application::new(
+    let system = support::init(file!());
-        Some("dev.tinybird.max.lull"),
-        Default::default()
-    ).expect("Initialization failed...");
 
-    application.connect_activate(|app| {
+    system.main_loop(move |_, ui| {
-        build_ui(app);
+        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]
+                ));
+            });
     });
-
-    application.run(&args().collect::<Vec<_>>());
 }

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);
+            }
+        })
+    }
+}