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annotate src/bin/client.rs @ 19:ba09079686a0

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Add support for different endianness between client and server.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Thu, 26 Aug 2021 23:43:36 +0200
parents 3f7b7a3ad8fe
children
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1 // Tablet emulator, for people who don’t own one
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2 // Copyright © 2020 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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3 //
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4 // This program is free software: you can redistribute it and/or modify
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5 // it under the terms of the GNU Affero General Public License as published by
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6 // the Free Software Foundation, either version 3 of the License, or
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7 // (at your option) any later version.
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8 //
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9 // This program is distributed in the hope that it will be useful,
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10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 // GNU Affero General Public License for more details.
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13 //
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14 // You should have received a copy of the GNU Affero General Public License
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15 // along with this program. If not, see <https://www.gnu.org/licenses/>.
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16
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17 use gio::prelude::*;
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18 use glib::clone;
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19 use gtk::prelude::*;
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20 use input_linux::Key;
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21 use std::net::UdpSocket;
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22 use std::sync::{Arc, Mutex};
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23 use tablet_emu::protocol::{Buttons, Event};
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24 use tablet_emu::{state::FakeState, DEFAULT_HEIGHT, DEFAULT_WIDTH};
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25
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26 fn build_main_menu(app: &gtk::Application) {
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27 let quit = gio::SimpleAction::new("quit", None);
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28 app.set_accels_for_action("app.quit", &["<Control>q"]);
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29 app.add_action(&quit);
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30 quit.connect_activate(clone!(@weak app => move |_, _| app.quit()));
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31
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32 let about = gio::SimpleAction::new("about", None);
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33 app.add_action(&about);
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34 about.connect_activate(|_, _| {
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35 let about = gtk::AboutDialog::builder()
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36 .program_name("TabletEmu")
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37 .logo_icon_name("input-tablet")
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38 .website("https://hg.linkmauve.fr/tablet-emu")
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39 .version("0.1")
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40 .license_type(gtk::License::Agpl30)
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41 .copyright("© 2020 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>")
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42 .build();
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43 //about.run();
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44 about.destroy();
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45 });
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46
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47 let menu = gio::Menu::new();
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48 {
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49 let file = gio::Menu::new();
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50 file.append(Some("_Quit"), Some("app.quit"));
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51 menu.append_submenu(Some("_File"), &file);
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52 }
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53 {
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54 let help = gio::Menu::new();
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55 help.append(Some("_About"), Some("app.about"));
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56 menu.append_submenu(Some("_Help"), &help);
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57 }
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58 app.set_menubar(Some(&menu));
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59 }
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60
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61 fn build_ui(app: &gtk::Application) {
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62 build_main_menu(app);
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63
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64 let address = "127.0.0.1:16150";
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65 let socket = Arc::new(Mutex::new(UdpSocket::bind("127.0.0.1:4321").unwrap()));
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66 println!("opened {:?}", socket);
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67
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68 let send = move |event: &Event| {
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69 let buf = bincode::serialize(event).unwrap();
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70 let socket = socket.lock().unwrap();
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71 let amount = socket.send_to(&buf, address).unwrap();
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72 assert_eq!(amount, std::mem::size_of::<Event>());
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73 };
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74 let send2 = send.clone();
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75 let send3 = send.clone();
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76 let send4 = send.clone();
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77
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78 let state = Arc::new(Mutex::new(FakeState::new()));
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79
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80 let hbox = gtk::Box::builder()
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81 .orientation(gtk::Orientation::Horizontal)
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82 .build();
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83 let tools_box = gtk::Box::builder()
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84 .orientation(gtk::Orientation::Vertical)
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85 .build();
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86
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87 macro_rules! impl_tool {
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88 ($tool:tt) => {
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89 let tool = gtk::Button::with_mnemonic($tool);
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90 let state_weak = Arc::downgrade(&state);
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91 let send = send.clone();
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92 tool.connect_clicked(move |b| {
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93 let state = state_weak.upgrade().unwrap();
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94 let mut state = state.lock().unwrap();
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95 let tool = match b.label().unwrap().as_str() {
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96 "_Pen" => Key::ButtonToolPen,
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97 "_Rubber" => Key::ButtonToolRubber,
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98 "_Brush" => Key::ButtonToolBrush,
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99 "P_encil" => Key::ButtonToolPencil,
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100 "_Airbrush" => Key::ButtonToolAirbrush,
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101 _ => unreachable!(),
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102 };
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103 state.select_tool(tool);
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104
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105 let mut event: Event = Default::default();
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106 event.buttons = match tool {
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107 Key::ButtonToolPen => Buttons::A,
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108 Key::ButtonToolRubber => Buttons::B,
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109 Key::ButtonToolBrush => Buttons::X,
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110 Key::ButtonToolPencil => Buttons::Y,
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111 Key::ButtonToolAirbrush => Buttons::SELECT,
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112 _ => unreachable!(),
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113 };
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114 send(&event);
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115 });
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116 tools_box.append(&tool);
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117 };
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118 }
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119 impl_tool!("_Pen");
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120 impl_tool!("_Rubber");
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121 impl_tool!("_Brush");
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122 impl_tool!("P_encil");
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123 impl_tool!("_Airbrush");
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124
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125 let drawing_area = gtk::DrawingArea::builder()
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126 .content_width(DEFAULT_WIDTH)
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127 .content_height(DEFAULT_HEIGHT)
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128 .hexpand(true)
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129 .build();
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130 let gesture_click = gtk::GestureClick::new();
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131 let event_controller = gtk::EventControllerMotion::new();
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132 let state_weak = Arc::downgrade(&state);
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133 drawing_area.connect_resize(move |_, width, height| {
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134 let state = state_weak.upgrade().unwrap();
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135 let mut state = state.lock().unwrap();
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136 state.set_size(width, height);
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137
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138 let mut event: Event = Default::default();
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139 event.buttons = Buttons::RESIZE;
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140 event.touch = (width as u16, height as u16);
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141 send(&event);
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142 });
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143 let state_weak = Arc::downgrade(&state);
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144 gesture_click.connect_pressed(move |_, n_press, x, y| {
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145 if n_press != 1 {
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146 return;
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147 }
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148
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149 let state = state_weak.upgrade().unwrap();
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150 let mut state = state.lock().unwrap();
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151 state.press(x, y).unwrap();
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152
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153 let mut event: Event = Default::default();
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154 event.buttons = Buttons::TOUCH;
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155 event.touch = (x as u16, y as u16);
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156 send2(&event);
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157 });
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158 let state_weak = Arc::downgrade(&state);
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159 gesture_click.connect_released(move |_, n_press, x, y| {
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160 if n_press != 1 {
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161 return;
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162 }
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163
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164 let state = state_weak.upgrade().unwrap();
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165 let mut state = state.lock().unwrap();
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166 state.release(x, y).unwrap();
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167
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168 let mut event: Event = Default::default();
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169 event.touch = (x as u16, y as u16);
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170 send3(&event);
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171 });
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172 event_controller.connect_motion(move |_, x, y| {
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173 let mut state = state.lock().unwrap();
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174 state.motion(x, y).unwrap();
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175
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176 if state.is_pressed() {
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177 let mut event: Event = Default::default();
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178 event.buttons = Buttons::TOUCH;
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179 event.touch = (x as u16, y as u16);
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180 send4(&event);
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181 }
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182 });
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183 drawing_area.add_controller(&gesture_click);
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184 drawing_area.add_controller(&event_controller);
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185 drawing_area.set_draw_func(move |_, ctx, _, _| {
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186 ctx.set_source_rgb(1., 0., 0.);
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187 ctx.set_operator(cairo::Operator::Screen);
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188 ctx.paint().unwrap();
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189 });
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190
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191 hbox.append(&tools_box);
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192 hbox.append(&drawing_area);
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193
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194 let window = gtk::ApplicationWindow::builder()
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195 .application(app)
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196 .title("tablet-emu")
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197 .default_width(800)
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198 .default_height(480)
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199 .child(&hbox)
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200 .build();
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201
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202 window.show();
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203 }
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204
18
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205 pub fn main() {
17
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206 let app = gtk::Application::builder()
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207 .application_id("fr.linkmauve.TabletEmu")
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208 .build();
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209 app.connect_activate(build_ui);
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210 app.run();
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211 }