Mercurial > tablet-emu

annotate src/gtk.rs @ 15:d103f7cca0bd

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Update to GTK 4.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Thu, 26 Aug 2021 19:34:40 +0200
parents adab13145994
children 478cf2a7d577
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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
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21 use std::io::ErrorKind;
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22 use std::sync::{Arc, Mutex};
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23 use input_linux::Key;
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24
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25 use crate::{
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26 state::State,
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27 DEFAULT_WIDTH, DEFAULT_HEIGHT,
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28 };
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29
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30 fn build_main_menu(app: &gtk::Application) {
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31 let quit = gio::SimpleAction::new("quit", None);
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32 app.set_accels_for_action("app.quit", &["<Control>q"]);
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33 app.add_action(&quit);
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34 quit.connect_activate(clone!(@weak app => move |_, _| app.quit()));
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35
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36 let about = gio::SimpleAction::new("about", None);
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37 app.add_action(&about);
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38 about.connect_activate(|_, _| {
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39 let about = gtk::AboutDialog::builder()
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40 .program_name("TabletEmu")
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41 .logo_icon_name("input-tablet")
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42 .website("https://hg.linkmauve.fr/tablet-emu")
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43 .version("0.1")
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44 .license_type(gtk::License::Agpl30)
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45 .copyright("© 2020 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>")
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46 .build();
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47 //about.run();
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48 about.destroy();
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49 });
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50
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51 let menu = gio::Menu::new();
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52 {
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53 let file = gio::Menu::new();
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54 file.append(Some("_Quit"), Some("app.quit"));
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55 menu.append_submenu(Some("_File"), &file);
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56 }
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57 {
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58 let help = gio::Menu::new();
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59 help.append(Some("_About"), Some("app.about"));
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60 menu.append_submenu(Some("_Help"), &help);
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61 }
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62 app.set_menubar(Some(&menu));
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63 }
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64
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65 fn build_ui(app: &gtk::Application) {
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66 build_main_menu(app);
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67
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68 let state = match State::new() {
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69 Ok(state) => Arc::new(Mutex::new(state)),
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70 Err(err) => {
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71 match err.kind() {
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72 ErrorKind::NotFound => {
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73 eprintln!("Couldn’t find /dev/uinput: {}", err);
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74 eprintln!("Maybe you forgot to `modprobe uinput`?");
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75 }
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76 ErrorKind::PermissionDenied => {
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77 eprintln!("Couldn’t open /dev/uinput for writing: {}", err);
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78 eprintln!("Maybe you aren’t allowed to create input devices?");
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79 }
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80 _ => eprintln!("Couldn’t open /dev/uinput for writing: {}", err),
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81 }
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82 std::process::exit(1);
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83 }
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84 };
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85
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86 let hbox = gtk::Box::builder()
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87 .orientation(gtk::Orientation::Horizontal)
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88 .build();
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89 let tools_box = gtk::Box::builder()
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90 .orientation(gtk::Orientation::Vertical)
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91 .build();
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92
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93 macro_rules! impl_tool {
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94 ($tool:tt) => {
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95 let tool = gtk::Button::with_mnemonic($tool);
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96 let state_weak = Arc::downgrade(&state);
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97 tool.connect_clicked(move |b| {
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98 let state = state_weak.upgrade().unwrap();
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99 let mut state = state.lock().unwrap();
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100 let tool = match b.label().unwrap().as_str() {
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101 "_Pen" => Key::ButtonToolPen,
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102 "_Rubber" => Key::ButtonToolRubber,
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103 "_Brush" => Key::ButtonToolBrush,
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104 "P_encil" => Key::ButtonToolPencil,
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105 "_Airbrush" => Key::ButtonToolAirbrush,
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106 _ => unreachable!(),
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107 };
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108 state.select_tool(tool);
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109 });
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110 tools_box.append(&tool);
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111 };
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112 }
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113 impl_tool!("_Pen");
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114 impl_tool!("_Rubber");
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115 impl_tool!("_Brush");
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116 impl_tool!("P_encil");
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117 impl_tool!("_Airbrush");
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118
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119 let drawing_area = gtk::DrawingArea::builder()
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120 .content_width(DEFAULT_WIDTH)
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121 .content_height(DEFAULT_HEIGHT)
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122 .hexpand(true)
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123 .build();
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124 let gesture_click = gtk::GestureClick::builder()
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125 .build();
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126 let event_controller = gtk::EventControllerMotion::builder()
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127 .build();
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128 let state_weak = Arc::downgrade(&state);
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129 drawing_area.connect_resize(move |_, width, height| {
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130 let state = state_weak.upgrade().unwrap();
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131 let mut state = state.lock().unwrap();
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132 state.set_size(width, height);
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133 });
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134 let state_weak = Arc::downgrade(&state);
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135 gesture_click.connect_pressed(move |_, n_press, x, y| {
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136 if n_press != 1 {
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137 return;
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138 }
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139
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140 let state = state_weak.upgrade().unwrap();
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141 let mut state = state.lock().unwrap();
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142 state.press(x, y).unwrap();
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143 });
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144 let state_weak = Arc::downgrade(&state);
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145 gesture_click.connect_released(move |_, n_press, x, y| {
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146 if n_press != 1 {
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147 return;
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148 }
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149
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150 let state = state_weak.upgrade().unwrap();
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151 let mut state = state.lock().unwrap();
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152 state.release(x, y).unwrap();
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153 });
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154 event_controller.connect_motion(move |_, x, y| {
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155 let mut state = state.lock().unwrap();
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156 state.motion(x, y).unwrap();
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157 });
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158 drawing_area.add_controller(&gesture_click);
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159 drawing_area.add_controller(&event_controller);
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160 drawing_area.set_draw_func(move |_, ctx, _, _| {
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161 ctx.set_source_rgb(1., 0., 0.);
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162 ctx.set_operator(cairo::Operator::Screen);
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163 ctx.paint().unwrap();
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164 });
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165
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166 hbox.append(&tools_box);
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167 hbox.append(&drawing_area);
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168
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169 let window = gtk::ApplicationWindow::builder()
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170 .application(app)
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171 .title("tablet-emu")
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172 .default_width(800)
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173 .default_height(480)
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174 .child(&hbox)
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175 .build();
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176
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177 window.show();
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178 }
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179
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180 pub fn main(_args: &[String]) {
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181 let app = gtk::Application::builder()
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182 .application_id("fr.linkmauve.TabletEmu")
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183 .build();
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184 app.connect_activate(build_ui);
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185 app.run();
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186 }