Mercurial > tablet-emu
annotate src/main.rs @ 2:39f87ef69b2a
Add support for selecting tools.
| author | Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> |
|---|---|
| date | Fri, 09 Oct 2020 16:04:59 +0200 |
| parents | 6dbe2bbeef70 |
| children | 72e63d6a3f8a |
| rev | line source |
|---|---|
| 0 | 1 use gio::prelude::*; |
| 2 use gtk::prelude::*; | |
| 3 | |
| 4 use std::env::args; | |
| 5 use std::fs::{File, OpenOptions}; | |
| 6 use std::io::ErrorKind; | |
| 7 use std::sync::{Arc, Mutex}; | |
| 8 | |
| 9 use input_linux::{ | |
| 10 sys::input_event, sys::timeval, AbsoluteAxis, AbsoluteInfo, AbsoluteInfoSetup, EventKind, | |
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11 InputId, InputProperty, Key, MiscKind, SynchronizeKind, UInputHandle, |
| 0 | 12 }; |
| 13 | |
| 14 const WIDTH: i32 = 320; | |
| 15 const HEIGHT: i32 = 180; | |
| 16 | |
| 17 const MAX_X: i32 = 69920; | |
| 18 const MAX_Y: i32 = 39980; | |
| 19 | |
| 20 fn create_uinput_device() -> std::io::Result<UInputHandle<File>> { | |
| 21 let file = OpenOptions::new().write(true).open("/dev/uinput")?; | |
| 22 let dev = UInputHandle::new(file); | |
| 23 | |
| 24 dev.set_evbit(EventKind::Synchronize)?; | |
| 25 dev.set_evbit(EventKind::Key)?; | |
| 26 dev.set_evbit(EventKind::Absolute)?; | |
| 27 dev.set_evbit(EventKind::Misc)?; | |
| 28 dev.set_keybit(Key::ButtonToolPen)?; | |
| 29 dev.set_keybit(Key::ButtonToolRubber)?; | |
| 30 dev.set_keybit(Key::ButtonToolBrush)?; | |
| 31 dev.set_keybit(Key::ButtonToolPencil)?; | |
| 32 dev.set_keybit(Key::ButtonToolAirbrush)?; | |
| 33 dev.set_keybit(Key::ButtonTouch)?; | |
| 34 dev.set_keybit(Key::ButtonStylus)?; | |
| 35 dev.set_keybit(Key::ButtonStylus2)?; | |
| 36 dev.set_keybit(Key::ButtonStylus3)?; | |
| 37 dev.set_mscbit(MiscKind::Serial)?; | |
| 38 dev.set_propbit(InputProperty::Direct)?; | |
| 39 | |
| 40 dev.set_absbit(AbsoluteAxis::X)?; | |
| 41 dev.set_absbit(AbsoluteAxis::Y)?; | |
| 42 dev.set_absbit(AbsoluteAxis::Z)?; | |
| 43 dev.set_absbit(AbsoluteAxis::Wheel)?; | |
| 44 dev.set_absbit(AbsoluteAxis::Pressure)?; | |
| 45 dev.set_absbit(AbsoluteAxis::Distance)?; | |
| 46 dev.set_absbit(AbsoluteAxis::TiltX)?; | |
| 47 dev.set_absbit(AbsoluteAxis::TiltY)?; | |
| 48 dev.set_absbit(AbsoluteAxis::Misc)?; | |
| 49 | |
| 50 let id = InputId { | |
| 51 bustype: 3, | |
| 52 vendor: 0x56a, | |
| 53 product: 0x350, | |
| 54 version: 0xb, | |
| 55 }; | |
| 56 | |
| 57 let x = AbsoluteInfoSetup { | |
| 58 axis: AbsoluteAxis::X, | |
| 59 info: AbsoluteInfo { | |
| 60 value: 0, | |
| 61 minimum: 0, | |
| 62 maximum: MAX_X, | |
| 63 fuzz: 0, | |
| 64 flat: 0, | |
| 65 resolution: 200, | |
| 66 }, | |
| 67 }; | |
| 68 let y = AbsoluteInfoSetup { | |
| 69 axis: AbsoluteAxis::Y, | |
| 70 info: AbsoluteInfo { | |
| 71 value: 0, | |
| 72 minimum: 0, | |
| 73 maximum: MAX_Y, | |
| 74 fuzz: 0, | |
| 75 flat: 0, | |
| 76 resolution: 200, | |
| 77 }, | |
| 78 }; | |
| 79 let z = AbsoluteInfoSetup { | |
| 80 axis: AbsoluteAxis::Z, | |
| 81 info: AbsoluteInfo { | |
| 82 value: 0, | |
| 83 minimum: -900, | |
| 84 maximum: 899, | |
| 85 fuzz: 0, | |
| 86 flat: 0, | |
| 87 resolution: 287, | |
| 88 }, | |
| 89 }; | |
| 90 let wheel = AbsoluteInfoSetup { | |
| 91 axis: AbsoluteAxis::Wheel, | |
| 92 info: AbsoluteInfo { | |
| 93 value: 0, | |
| 94 minimum: 0, | |
| 95 maximum: 2047, | |
| 96 fuzz: 0, | |
| 97 flat: 0, | |
| 98 resolution: 0, | |
| 99 }, | |
| 100 }; | |
| 101 let pressure = AbsoluteInfoSetup { | |
| 102 axis: AbsoluteAxis::Pressure, | |
| 103 info: AbsoluteInfo { | |
| 104 value: 0, | |
| 105 minimum: 0, | |
| 106 maximum: 8196, | |
| 107 fuzz: 0, | |
| 108 flat: 0, | |
| 109 resolution: 0, | |
| 110 }, | |
| 111 }; | |
| 112 let distance = AbsoluteInfoSetup { | |
| 113 axis: AbsoluteAxis::Distance, | |
| 114 info: AbsoluteInfo { | |
| 115 value: 0, | |
| 116 minimum: 0, | |
| 117 maximum: 63, | |
| 118 fuzz: 0, | |
| 119 flat: 0, | |
| 120 resolution: 0, | |
| 121 }, | |
| 122 }; | |
| 123 let tilt_x = AbsoluteInfoSetup { | |
| 124 axis: AbsoluteAxis::TiltX, | |
| 125 info: AbsoluteInfo { | |
| 126 value: 0, | |
| 127 minimum: -64, | |
| 128 maximum: 63, | |
| 129 fuzz: 0, | |
| 130 flat: 0, | |
| 131 resolution: 57, | |
| 132 }, | |
| 133 }; | |
| 134 let tilt_y = AbsoluteInfoSetup { | |
| 135 axis: AbsoluteAxis::TiltY, | |
| 136 info: AbsoluteInfo { | |
| 137 value: 0, | |
| 138 minimum: -64, | |
| 139 maximum: 63, | |
| 140 fuzz: 0, | |
| 141 flat: 0, | |
| 142 resolution: 57, | |
| 143 }, | |
| 144 }; | |
| 145 let misc = AbsoluteInfoSetup { | |
| 146 axis: AbsoluteAxis::Misc, | |
| 147 info: AbsoluteInfo { | |
| 148 value: 0, | |
| 149 minimum: 0, | |
| 150 maximum: 0, | |
| 151 fuzz: 0, | |
| 152 flat: 0, | |
| 153 resolution: 0, | |
| 154 }, | |
| 155 }; | |
| 156 | |
| 157 dev.create( | |
| 158 &id, | |
| 159 b"TabletEmu", | |
| 160 0, | |
| 161 &[x, y, z, wheel, pressure, distance, tilt_x, tilt_y, misc], | |
| 162 )?; | |
| 163 Ok(dev) | |
| 164 } | |
| 165 | |
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166 fn input_event_new(type_: EventKind, code: u16, value: i32) -> input_event { |
| 0 | 167 input_event { |
| 168 time: timeval { | |
| 169 tv_sec: 0, | |
| 170 tv_usec: 0, | |
| 171 }, | |
| 172 type_: type_ as u16, | |
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173 code, |
| 0 | 174 value, |
| 175 } | |
| 176 } | |
| 177 | |
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178 fn input_axis_new(code: AbsoluteAxis, value: i32) -> input_event { |
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179 input_event_new(EventKind::Absolute, code as u16, value) |
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180 } |
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181 |
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182 fn input_key_new(code: Key, value: i32) -> input_event { |
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183 input_event_new(EventKind::Key, code as u16, value) |
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184 } |
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185 |
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186 fn input_misc_new(code: MiscKind, value: i32) -> input_event { |
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187 input_event_new(EventKind::Misc, code as u16, value) |
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188 } |
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189 |
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190 fn input_synchronize_new(code: SynchronizeKind, value: i32) -> input_event { |
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191 input_event_new(EventKind::Synchronize, code as u16, value) |
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192 } |
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193 |
| 0 | 194 fn build_ui(application: >k::Application) { |
| 195 let dev = match create_uinput_device() { | |
| 196 Ok(dev) => Arc::new(dev), | |
| 197 Err(err) => { | |
| 198 match err.kind() { | |
| 199 ErrorKind::NotFound => { | |
| 200 eprintln!("Couldn’t find /dev/uinput: {}", err); | |
| 201 eprintln!("Maybe you forgot to `modprobe uinput`?"); | |
| 202 } | |
| 203 ErrorKind::PermissionDenied => { | |
| 204 eprintln!("Couldn’t open /dev/uinput for writing: {}", err); | |
| 205 eprintln!("Maybe you aren’t allowed to create input devices?"); | |
| 206 } | |
| 207 _ => eprintln!("Couldn’t open /dev/uinput for writing: {}", err), | |
| 208 } | |
| 209 return; | |
| 210 } | |
| 211 }; | |
| 212 println!( | |
| 213 "New device at {:?} ({:?})", | |
| 214 dev.evdev_path().unwrap(), | |
| 215 dev.sys_path().unwrap() | |
| 216 ); | |
| 217 | |
| 218 let window = gtk::ApplicationWindow::new(application); | |
| 219 | |
| 220 window.set_title("tablet-emu"); | |
| 221 window.set_position(gtk::WindowPosition::Center); | |
| 222 | |
| 223 let hbox = gtk::Box::new(gtk::Orientation::Horizontal, 0); | |
| 224 let tools_box = gtk::Box::new(gtk::Orientation::Vertical, 0); | |
| 225 | |
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226 let current_tool = Arc::new(Mutex::new(Key::ButtonToolPen)); |
| 0 | 227 let tool1 = gtk::Button::with_label("Pen"); |
| 228 let tool2 = gtk::Button::with_label("Rubber"); | |
| 229 let tool3 = gtk::Button::with_label("Brush"); | |
| 230 let tool4 = gtk::Button::with_label("Pencil"); | |
| 231 let tool5 = gtk::Button::with_label("Airbrush"); | |
| 232 | |
| 233 macro_rules! impl_tool_signal { | |
| 234 ($tool:ident) => { | |
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235 let current_tool_weak = Arc::downgrade(¤t_tool); |
| 0 | 236 $tool.connect_clicked(move |b| { |
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237 let current_tool = current_tool_weak.upgrade().unwrap(); |
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238 let mut current_tool = current_tool.lock().unwrap(); |
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239 *current_tool = match b.get_label().unwrap().as_str() { |
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240 "Pen" => Key::ButtonToolPen, |
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241 "Rubber" => Key::ButtonToolRubber, |
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242 "Brush" => Key::ButtonToolBrush, |
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243 "Pencil" => Key::ButtonToolPencil, |
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244 "Airbrush" => Key::ButtonToolAirbrush, |
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245 _ => unreachable!(), |
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246 }; |
| 0 | 247 }); |
| 248 }; | |
| 249 }; | |
| 250 impl_tool_signal!(tool1); | |
| 251 impl_tool_signal!(tool2); | |
| 252 impl_tool_signal!(tool3); | |
| 253 impl_tool_signal!(tool4); | |
| 254 impl_tool_signal!(tool5); | |
| 255 | |
| 256 tools_box.add(&tool1); | |
| 257 tools_box.add(&tool2); | |
| 258 tools_box.add(&tool3); | |
| 259 tools_box.add(&tool4); | |
| 260 tools_box.add(&tool5); | |
| 261 | |
| 262 let current_size = Arc::new(Mutex::new((WIDTH as f64, HEIGHT as f64))); | |
| 263 let pressed = Arc::new(Mutex::new(false)); | |
| 264 | |
| 265 let drawing_area = gtk::DrawingArea::new(); | |
| 266 drawing_area.set_size_request(WIDTH, HEIGHT); | |
| 267 drawing_area.set_hexpand(true); | |
| 268 drawing_area.set_events( | |
| 269 gdk::EventMask::BUTTON_PRESS_MASK | |
| 270 | gdk::EventMask::BUTTON_RELEASE_MASK | |
| 271 | gdk::EventMask::POINTER_MOTION_MASK, | |
| 272 ); | |
| 273 let current_size_weak = Arc::downgrade(¤t_size); | |
| 274 drawing_area.connect_configure_event(move |_, event| { | |
| 275 let current_size = current_size_weak.upgrade().unwrap(); | |
| 276 let mut current_size = current_size.lock().unwrap(); | |
| 277 *current_size = match event.get_size() { | |
| 278 (width, height) => (width as f64, height as f64), | |
| 279 }; | |
| 280 true | |
| 281 }); | |
| 282 let dev_weak = Arc::downgrade(&dev); | |
| 283 let current_size_weak = Arc::downgrade(¤t_size); | |
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284 let current_tool_weak = Arc::downgrade(¤t_tool); |
| 0 | 285 let pressed_weak = Arc::downgrade(&pressed); |
| 286 drawing_area.connect_button_press_event(move |_, event| { | |
| 287 if event.get_button() != 1 { | |
| 288 return Inhibit(false); | |
| 289 } | |
| 290 | |
| 291 let dev = dev_weak.upgrade().unwrap(); | |
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292 let current_tool = current_tool_weak.upgrade().unwrap(); |
| 0 | 293 let pressed = pressed_weak.upgrade().unwrap(); |
| 294 let mut pressed = pressed.lock().unwrap(); | |
| 295 *pressed = true; | |
| 296 let (x, y) = event.get_position(); | |
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297 //println!("press tool {} at {}, {}", current_tool.lock().unwrap(), x, y); |
| 0 | 298 let current_size = current_size_weak.upgrade().unwrap(); |
| 299 let current_size = current_size.lock().unwrap(); | |
| 300 let (width, height) = *current_size; | |
| 301 dev.write(&[ | |
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302 input_axis_new(AbsoluteAxis::X, (x * MAX_X as f64 / width) as i32), |
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303 input_axis_new(AbsoluteAxis::Y, (y * MAX_Y as f64 / height) as i32), |
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304 input_axis_new(AbsoluteAxis::Z, 0), |
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305 input_axis_new(AbsoluteAxis::Wheel, 0), |
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306 input_axis_new(AbsoluteAxis::Pressure, 1024), |
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307 input_axis_new(AbsoluteAxis::Distance, 0), |
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308 input_axis_new(AbsoluteAxis::TiltX, 16), |
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309 input_axis_new(AbsoluteAxis::TiltY, 0), |
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310 input_misc_new(MiscKind::Serial, 0), |
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311 input_key_new(*current_tool.lock().unwrap(), 0), |
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312 input_synchronize_new(SynchronizeKind::Report, 0), |
| 0 | 313 ]) |
| 314 .unwrap(); | |
| 315 Inhibit(false) | |
| 316 }); | |
| 317 let dev_weak = Arc::downgrade(&dev); | |
| 318 let current_size_weak = Arc::downgrade(¤t_size); | |
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319 let current_tool_weak = Arc::downgrade(¤t_tool); |
| 0 | 320 let pressed_weak = Arc::downgrade(&pressed); |
| 321 drawing_area.connect_button_release_event(move |_, event| { | |
| 322 if event.get_button() != 1 { | |
| 323 return Inhibit(false); | |
| 324 } | |
| 325 | |
| 326 let dev = dev_weak.upgrade().unwrap(); | |
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327 let current_tool = current_tool_weak.upgrade().unwrap(); |
| 0 | 328 let (x, y) = event.get_position(); |
| 329 let pressed = pressed_weak.upgrade().unwrap(); | |
| 330 let mut pressed = pressed.lock().unwrap(); | |
| 331 *pressed = false; | |
| 332 //println!("release {}, {}", x, y); | |
| 333 let current_size = current_size_weak.upgrade().unwrap(); | |
| 334 let current_size = current_size.lock().unwrap(); | |
| 335 let (width, height) = *current_size; | |
| 336 dev.write(&[ | |
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337 input_axis_new(AbsoluteAxis::X, (x * MAX_X as f64 / width) as i32), |
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338 input_axis_new(AbsoluteAxis::Y, (y * MAX_Y as f64 / height) as i32), |
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339 input_axis_new(AbsoluteAxis::Z, 0), |
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340 input_axis_new(AbsoluteAxis::Wheel, 0), |
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341 input_axis_new(AbsoluteAxis::Pressure, 0), |
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342 input_axis_new(AbsoluteAxis::Distance, 16), |
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343 input_axis_new(AbsoluteAxis::TiltX, 16), |
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344 input_axis_new(AbsoluteAxis::TiltY, 0), |
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345 input_misc_new(MiscKind::Serial, 0), |
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346 input_key_new(*current_tool.lock().unwrap(), 0), |
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347 input_synchronize_new(SynchronizeKind::Report, 0), |
| 0 | 348 ]) |
| 349 .unwrap(); | |
| 350 Inhibit(false) | |
| 351 }); | |
| 352 drawing_area.connect_motion_notify_event(move |_, event| { | |
| 353 let (x, y) = event.get_position(); | |
| 354 let pressed = pressed.lock().unwrap(); | |
| 355 //println!("motion {}, {}", x, y); | |
| 356 let current_size = current_size.lock().unwrap(); | |
| 357 let (width, height) = *current_size; | |
| 358 dev.write(&[ | |
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359 input_axis_new(AbsoluteAxis::X, (x * MAX_X as f64 / width) as i32), |
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360 input_axis_new(AbsoluteAxis::Y, (y * MAX_Y as f64 / height) as i32), |
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361 input_axis_new(AbsoluteAxis::Z, 0), |
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362 input_axis_new(AbsoluteAxis::Wheel, 0), |
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363 input_axis_new(AbsoluteAxis::Pressure, if *pressed { 2048 } else { 0 }), |
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364 input_axis_new(AbsoluteAxis::Distance, if *pressed { 0 } else { 32 }), |
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365 input_axis_new(AbsoluteAxis::TiltX, 16), |
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366 input_axis_new(AbsoluteAxis::TiltY, 0), |
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367 input_misc_new(MiscKind::Serial, 0), |
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368 input_key_new(*current_tool.lock().unwrap(), 0), |
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369 input_synchronize_new(SynchronizeKind::Report, 0), |
| 0 | 370 ]) |
| 371 .unwrap(); | |
| 372 Inhibit(false) | |
| 373 }); | |
| 374 drawing_area.connect_draw(move |_, ctx| { | |
| 375 //println!("drawing {}", drawing_area); | |
| 376 ctx.set_source_rgb(1., 0., 0.); | |
| 377 ctx.set_operator(cairo::Operator::Screen); | |
| 378 ctx.paint(); | |
| 379 Inhibit(false) | |
| 380 }); | |
| 381 | |
| 382 hbox.add(&tools_box); | |
| 383 hbox.add(&drawing_area); | |
| 384 | |
| 385 window.add(&hbox); | |
| 386 | |
| 387 window.show_all(); | |
| 388 } | |
| 389 | |
| 390 fn main() { | |
| 391 let application = gtk::Application::new( | |
| 392 Some("fr.linkmauve.TabletEmu"), | |
| 393 gio::ApplicationFlags::empty(), | |
| 394 ) | |
| 395 .expect("Initialisation failed…"); | |
| 396 application.connect_activate(build_ui); | |
| 397 application.run(&args().collect::<Vec<_>>()); | |
| 398 } |