Mercurial > tablet-emu

annotate src/main.rs @ 11:0193041f01d4

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Split State into another module.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sun, 01 Nov 2020 15:56:00 +0100
parents 06d77bb94a50
children d43c31aff57c
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rev   line source
6
dd10331549c6 Add a license file.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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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
0
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17 use gio::prelude::*;
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d1972fc49a5b Reorganise the code a bit.
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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::env::args;
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22 use std::fs::{File, OpenOptions};
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23 use std::io::ErrorKind;
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0193041f01d4 Split State into another module.
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24 use std::sync::Arc;
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25
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26 use input_linux::{
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27 sys::input_event, sys::timeval, AbsoluteAxis, AbsoluteInfo, AbsoluteInfoSetup, EventKind,
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6dbe2bbeef70 Improve input event types with helper functions.
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28 InputId, InputProperty, Key, MiscKind, SynchronizeKind, UInputHandle,
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29 };
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30
11
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31 mod state;
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32 use state::State;
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33
0
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34 const WIDTH: i32 = 320;
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35 const HEIGHT: i32 = 180;
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36
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37 const MAX_X: i32 = 69920;
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38 const MAX_Y: i32 = 39980;
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39
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40 fn create_uinput_device() -> std::io::Result<UInputHandle<File>> {
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41 let file = OpenOptions::new().write(true).open("/dev/uinput")?;
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42 let dev = UInputHandle::new(file);
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43
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44 dev.set_evbit(EventKind::Synchronize)?;
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45 dev.set_evbit(EventKind::Key)?;
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46 dev.set_evbit(EventKind::Absolute)?;
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47 dev.set_evbit(EventKind::Misc)?;
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48 dev.set_keybit(Key::ButtonToolPen)?;
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49 dev.set_keybit(Key::ButtonToolRubber)?;
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50 dev.set_keybit(Key::ButtonToolBrush)?;
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51 dev.set_keybit(Key::ButtonToolPencil)?;
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52 dev.set_keybit(Key::ButtonToolAirbrush)?;
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53 dev.set_keybit(Key::ButtonTouch)?;
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54 dev.set_keybit(Key::ButtonStylus)?;
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55 dev.set_keybit(Key::ButtonStylus2)?;
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56 dev.set_keybit(Key::ButtonStylus3)?;
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57 dev.set_mscbit(MiscKind::Serial)?;
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58 dev.set_propbit(InputProperty::Direct)?;
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59
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60 dev.set_absbit(AbsoluteAxis::X)?;
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61 dev.set_absbit(AbsoluteAxis::Y)?;
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62 dev.set_absbit(AbsoluteAxis::Z)?;
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63 dev.set_absbit(AbsoluteAxis::Wheel)?;
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64 dev.set_absbit(AbsoluteAxis::Pressure)?;
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65 dev.set_absbit(AbsoluteAxis::Distance)?;
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66 dev.set_absbit(AbsoluteAxis::TiltX)?;
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67 dev.set_absbit(AbsoluteAxis::TiltY)?;
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68 dev.set_absbit(AbsoluteAxis::Misc)?;
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69
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70 let id = InputId {
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71 bustype: 3,
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72 vendor: 0x56a,
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73 product: 0x350,
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74 version: 0xb,
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75 };
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76
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77 let x = AbsoluteInfoSetup {
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78 axis: AbsoluteAxis::X,
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79 info: AbsoluteInfo {
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80 value: 0,
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81 minimum: 0,
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82 maximum: MAX_X,
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83 fuzz: 0,
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84 flat: 0,
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85 resolution: 200,
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86 },
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87 };
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88 let y = AbsoluteInfoSetup {
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89 axis: AbsoluteAxis::Y,
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90 info: AbsoluteInfo {
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91 value: 0,
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92 minimum: 0,
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93 maximum: MAX_Y,
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94 fuzz: 0,
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95 flat: 0,
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96 resolution: 200,
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97 },
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98 };
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99 let z = AbsoluteInfoSetup {
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100 axis: AbsoluteAxis::Z,
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101 info: AbsoluteInfo {
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102 value: 0,
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103 minimum: -900,
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104 maximum: 899,
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105 fuzz: 0,
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106 flat: 0,
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107 resolution: 287,
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108 },
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109 };
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110 let wheel = AbsoluteInfoSetup {
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111 axis: AbsoluteAxis::Wheel,
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112 info: AbsoluteInfo {
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113 value: 0,
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114 minimum: 0,
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115 maximum: 2047,
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116 fuzz: 0,
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117 flat: 0,
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118 resolution: 0,
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119 },
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120 };
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121 let pressure = AbsoluteInfoSetup {
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122 axis: AbsoluteAxis::Pressure,
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123 info: AbsoluteInfo {
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124 value: 0,
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125 minimum: 0,
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126 maximum: 8196,
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127 fuzz: 0,
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128 flat: 0,
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129 resolution: 0,
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130 },
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131 };
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132 let distance = AbsoluteInfoSetup {
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133 axis: AbsoluteAxis::Distance,
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134 info: AbsoluteInfo {
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135 value: 0,
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136 minimum: 0,
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137 maximum: 63,
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138 fuzz: 0,
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139 flat: 0,
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140 resolution: 0,
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141 },
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142 };
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143 let tilt_x = AbsoluteInfoSetup {
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144 axis: AbsoluteAxis::TiltX,
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145 info: AbsoluteInfo {
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146 value: 0,
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147 minimum: -64,
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148 maximum: 63,
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149 fuzz: 0,
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150 flat: 0,
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151 resolution: 57,
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152 },
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153 };
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154 let tilt_y = AbsoluteInfoSetup {
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155 axis: AbsoluteAxis::TiltY,
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156 info: AbsoluteInfo {
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157 value: 0,
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158 minimum: -64,
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159 maximum: 63,
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160 fuzz: 0,
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161 flat: 0,
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162 resolution: 57,
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163 },
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164 };
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165 let misc = AbsoluteInfoSetup {
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166 axis: AbsoluteAxis::Misc,
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167 info: AbsoluteInfo {
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168 value: 0,
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169 minimum: 0,
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170 maximum: 0,
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171 fuzz: 0,
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172 flat: 0,
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173 resolution: 0,
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174 },
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175 };
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176
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177 dev.create(
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178 &id,
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179 b"TabletEmu",
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180 0,
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181 &[x, y, z, wheel, pressure, distance, tilt_x, tilt_y, misc],
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182 )?;
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183 Ok(dev)
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184 }
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185
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186 fn input_event_new(type_: EventKind, code: u16, value: i32) -> input_event {
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187 input_event {
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188 time: timeval {
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189 tv_sec: 0,
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190 tv_usec: 0,
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191 },
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192 type_: type_ as u16,
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193 code,
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194 value,
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195 }
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196 }
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197
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198 fn input_axis_new(code: AbsoluteAxis, value: i32) -> input_event {
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199 input_event_new(EventKind::Absolute, code as u16, value)
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200 }
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201
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202 fn input_key_new(code: Key, value: i32) -> input_event {
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203 input_event_new(EventKind::Key, code as u16, value)
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204 }
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205
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206 fn input_misc_new(code: MiscKind, value: i32) -> input_event {
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207 input_event_new(EventKind::Misc, code as u16, value)
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208 }
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209
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210 fn input_synchronize_new(code: SynchronizeKind, value: i32) -> input_event {
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211 input_event_new(EventKind::Synchronize, code as u16, value)
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212 }
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213
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214 fn build_main_menu(application: &gtk::Application) {
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215 let quit = gio::SimpleAction::new("quit", None);
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216 application.set_accels_for_action("app.quit", &["<Control>q"]);
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217 application.add_action(&quit);
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218 quit.connect_activate(clone!(@weak application => move |_, _| application.quit()));
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219
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220 let about = gio::SimpleAction::new("about", None);
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221 application.add_action(&about);
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222 about.connect_activate(|_, _| {
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223 let about = gtk::AboutDialog::new();
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224 about.set_program_name("TabletEmu");
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225 about.set_logo_icon_name(Some("input-tablet"));
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226 about.set_website(Some("https://hg.linkmauve.fr/tablet-emu"));
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227 about.set_version(Some("0.1"));
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228 about.set_license_type(gtk::License::Agpl30);
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229 about.set_copyright(Some("© 2020 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>"));
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230 about.run();
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231 unsafe {
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232 about.destroy();
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233 }
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234 });
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235
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236 let menu = gio::Menu::new();
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237 {
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238 let file = gio::Menu::new();
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239 file.append(Some("_Quit"), Some("app.quit"));
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240 menu.append_submenu(Some("_File"), &file);
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241 }
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242 {
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243 let help = gio::Menu::new();
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244 help.append(Some("_About"), Some("app.about"));
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245 menu.append_submenu(Some("_Help"), &help);
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246 }
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247 application.set_menubar(Some(&menu));
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248 }
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249
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250 fn build_ui(application: &gtk::Application) {
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251 build_main_menu(application);
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252
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253 let state = match State::new() {
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254 Ok(state) => state,
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255 Err(err) => {
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256 match err.kind() {
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257 ErrorKind::NotFound => {
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258 eprintln!("Couldn’t find /dev/uinput: {}", err);
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259 eprintln!("Maybe you forgot to `modprobe uinput`?");
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260 }
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261 ErrorKind::PermissionDenied => {
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262 eprintln!("Couldn’t open /dev/uinput for writing: {}", err);
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263 eprintln!("Maybe you aren’t allowed to create input devices?");
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264 }
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265 _ => eprintln!("Couldn’t open /dev/uinput for writing: {}", err),
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266 }
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267 std::process::exit(1);
0
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268 }
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269 };
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270
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271 let window = gtk::ApplicationWindow::new(application);
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272 window.set_title("tablet-emu");
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273 window.set_position(gtk::WindowPosition::Center);
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274
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275 let hbox = gtk::Box::new(gtk::Orientation::Horizontal, 0);
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276 let tools_box = gtk::Box::new(gtk::Orientation::Vertical, 0);
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277
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278 macro_rules! impl_tool {
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279 ($tool:tt) => {
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280 let tool = gtk::Button::with_mnemonic($tool);
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281 let state_weak = Arc::downgrade(&state);
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282 tool.connect_clicked(move |b| {
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283 let state = state_weak.upgrade().unwrap();
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284 let mut state = state.lock().unwrap();
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285 let tool = match b.get_label().unwrap().as_str() {
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286 "_Pen" => Key::ButtonToolPen,
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287 "_Rubber" => Key::ButtonToolRubber,
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288 "_Brush" => Key::ButtonToolBrush,
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289 "P_encil" => Key::ButtonToolPencil,
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290 "_Airbrush" => Key::ButtonToolAirbrush,
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291 _ => unreachable!(),
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292 };
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293 state.select_tool(tool);
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294 });
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295 tools_box.add(&tool);
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296 };
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297 };
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298 impl_tool!("_Pen");
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299 impl_tool!("_Rubber");
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300 impl_tool!("_Brush");
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301 impl_tool!("P_encil");
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302 impl_tool!("_Airbrush");
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303
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304 let drawing_area = gtk::DrawingArea::new();
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305 drawing_area.set_size_request(WIDTH, HEIGHT);
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306 drawing_area.set_hexpand(true);
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307 drawing_area.set_events(
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308 gdk::EventMask::BUTTON_PRESS_MASK
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309 | gdk::EventMask::BUTTON_RELEASE_MASK
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310 | gdk::EventMask::POINTER_MOTION_MASK,
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311 );
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312 let state_weak = Arc::downgrade(&state);
0
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313 drawing_area.connect_configure_event(move |_, event| {
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314 let state = state_weak.upgrade().unwrap();
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315 let mut state = state.lock().unwrap();
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316 state.set_size(event.get_size());
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317 true
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318 });
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319 let state_weak = Arc::downgrade(&state);
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320 drawing_area.connect_button_press_event(move |_, event| {
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321 if event.get_button() != 1 {
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322 return Inhibit(false);
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323 }
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324
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325 let state = state_weak.upgrade().unwrap();
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326 let mut state = state.lock().unwrap();
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327 let (x, y) = event.get_position();
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328 state.press(x, y).unwrap();
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329 Inhibit(false)
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330 });
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331 let state_weak = Arc::downgrade(&state);
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332 drawing_area.connect_button_release_event(move |_, event| {
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333 if event.get_button() != 1 {
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334 return Inhibit(false);
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335 }
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336
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337 let state = state_weak.upgrade().unwrap();
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338 let mut state = state.lock().unwrap();
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339 let (x, y) = event.get_position();
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340 state.release(x, y).unwrap();
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341 Inhibit(false)
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342 });
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343 drawing_area.connect_motion_notify_event(move |_, event| {
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344 let mut state = state.lock().unwrap();
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345 let (x, y) = event.get_position();
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346 state.motion(x, y).unwrap();
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347 Inhibit(false)
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348 });
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349 drawing_area.connect_draw(move |_, ctx| {
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350 //println!("drawing {}", drawing_area);
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351 ctx.set_source_rgb(1., 0., 0.);
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352 ctx.set_operator(cairo::Operator::Screen);
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353 ctx.paint();
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354 Inhibit(false)
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355 });
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356
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357 hbox.add(&tools_box);
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358 hbox.add(&drawing_area);
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359
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360 window.add(&hbox);
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361
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362 window.show_all();
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363 }
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364
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365 fn main() {
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366 let application = gtk::Application::new(
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367 Some("fr.linkmauve.TabletEmu"),
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368 gio::ApplicationFlags::empty(),
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369 )
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370 .expect("Initialisation failed…");
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371 application.connect_activate(build_ui);
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372 application.run(&args().collect::<Vec<_>>());
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373 }