Mercurial > tablet-emu

annotate src/main.rs @ 0:816237b684ea

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Hello world!
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Wed, 07 Oct 2020 04:10:33 +0200
parents
children 6dbe2bbeef70
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
816237b684ea Hello world!
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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1 use gio::prelude::*;
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2 use gtk::prelude::*;
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3
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4 use std::env::args;
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5 use std::fs::{File, OpenOptions};
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6 use std::io::ErrorKind;
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7 use std::sync::{Arc, Mutex};
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8
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9 use input_linux::{
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10 sys::input_event, sys::timeval, AbsoluteAxis, AbsoluteInfo, AbsoluteInfoSetup, EventKind,
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11 InputId, InputProperty, Key, MiscKind, UInputHandle,
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12 };
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13
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14 const WIDTH: i32 = 320;
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15 const HEIGHT: i32 = 180;
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16
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17 const MAX_X: i32 = 69920;
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18 const MAX_Y: i32 = 39980;
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19
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20 fn create_uinput_device() -> std::io::Result<UInputHandle<File>> {
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21 let file = OpenOptions::new().write(true).open("/dev/uinput")?;
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22 let dev = UInputHandle::new(file);
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23
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24 dev.set_evbit(EventKind::Synchronize)?;
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25 dev.set_evbit(EventKind::Key)?;
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26 dev.set_evbit(EventKind::Absolute)?;
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27 dev.set_evbit(EventKind::Misc)?;
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28 dev.set_keybit(Key::ButtonToolPen)?;
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29 dev.set_keybit(Key::ButtonToolRubber)?;
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30 dev.set_keybit(Key::ButtonToolBrush)?;
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31 dev.set_keybit(Key::ButtonToolPencil)?;
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32 dev.set_keybit(Key::ButtonToolAirbrush)?;
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33 dev.set_keybit(Key::ButtonTouch)?;
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34 dev.set_keybit(Key::ButtonStylus)?;
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35 dev.set_keybit(Key::ButtonStylus2)?;
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36 dev.set_keybit(Key::ButtonStylus3)?;
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37 dev.set_mscbit(MiscKind::Serial)?;
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38 dev.set_propbit(InputProperty::Direct)?;
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39
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40 dev.set_absbit(AbsoluteAxis::X)?;
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41 dev.set_absbit(AbsoluteAxis::Y)?;
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42 dev.set_absbit(AbsoluteAxis::Z)?;
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43 dev.set_absbit(AbsoluteAxis::Wheel)?;
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44 dev.set_absbit(AbsoluteAxis::Pressure)?;
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45 dev.set_absbit(AbsoluteAxis::Distance)?;
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46 dev.set_absbit(AbsoluteAxis::TiltX)?;
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47 dev.set_absbit(AbsoluteAxis::TiltY)?;
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48 dev.set_absbit(AbsoluteAxis::Misc)?;
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49
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50 let id = InputId {
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51 bustype: 3,
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52 vendor: 0x56a,
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53 product: 0x350,
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54 version: 0xb,
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55 };
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56
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57 let x = AbsoluteInfoSetup {
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58 axis: AbsoluteAxis::X,
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59 info: AbsoluteInfo {
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60 value: 0,
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61 minimum: 0,
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62 maximum: MAX_X,
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63 fuzz: 0,
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64 flat: 0,
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65 resolution: 200,
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66 },
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67 };
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68 let y = AbsoluteInfoSetup {
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69 axis: AbsoluteAxis::Y,
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70 info: AbsoluteInfo {
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71 value: 0,
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72 minimum: 0,
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73 maximum: MAX_Y,
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74 fuzz: 0,
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75 flat: 0,
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76 resolution: 200,
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77 },
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78 };
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79 let z = AbsoluteInfoSetup {
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80 axis: AbsoluteAxis::Z,
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81 info: AbsoluteInfo {
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82 value: 0,
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83 minimum: -900,
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84 maximum: 899,
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85 fuzz: 0,
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86 flat: 0,
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87 resolution: 287,
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88 },
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89 };
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90 let wheel = AbsoluteInfoSetup {
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91 axis: AbsoluteAxis::Wheel,
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92 info: AbsoluteInfo {
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93 value: 0,
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94 minimum: 0,
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95 maximum: 2047,
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96 fuzz: 0,
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97 flat: 0,
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98 resolution: 0,
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99 },
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100 };
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101 let pressure = AbsoluteInfoSetup {
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102 axis: AbsoluteAxis::Pressure,
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103 info: AbsoluteInfo {
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104 value: 0,
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105 minimum: 0,
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106 maximum: 8196,
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107 fuzz: 0,
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108 flat: 0,
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109 resolution: 0,
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110 },
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111 };
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112 let distance = AbsoluteInfoSetup {
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113 axis: AbsoluteAxis::Distance,
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114 info: AbsoluteInfo {
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115 value: 0,
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116 minimum: 0,
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117 maximum: 63,
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118 fuzz: 0,
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119 flat: 0,
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120 resolution: 0,
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121 },
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122 };
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123 let tilt_x = AbsoluteInfoSetup {
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124 axis: AbsoluteAxis::TiltX,
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125 info: AbsoluteInfo {
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126 value: 0,
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127 minimum: -64,
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128 maximum: 63,
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129 fuzz: 0,
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130 flat: 0,
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131 resolution: 57,
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132 },
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133 };
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134 let tilt_y = AbsoluteInfoSetup {
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135 axis: AbsoluteAxis::TiltY,
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136 info: AbsoluteInfo {
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137 value: 0,
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138 minimum: -64,
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139 maximum: 63,
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140 fuzz: 0,
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141 flat: 0,
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142 resolution: 57,
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143 },
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144 };
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145 let misc = AbsoluteInfoSetup {
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146 axis: AbsoluteAxis::Misc,
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147 info: AbsoluteInfo {
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148 value: 0,
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149 minimum: 0,
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150 maximum: 0,
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151 fuzz: 0,
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152 flat: 0,
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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153 resolution: 0,
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154 },
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155 };
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156
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157 dev.create(
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158 &id,
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159 b"TabletEmu",
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160 0,
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161 &[x, y, z, wheel, pressure, distance, tilt_x, tilt_y, misc],
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162 )?;
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163 Ok(dev)
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164 }
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165
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166 fn input_event_new(type_: EventKind, code: AbsoluteAxis, value: i32) -> input_event {
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167 input_event {
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168 time: timeval {
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169 tv_sec: 0,
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170 tv_usec: 0,
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171 },
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172 type_: type_ as u16,
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173 code: code as u16,
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parents:
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174 value,
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parents:
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175 }
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parents:
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176 }
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parents:
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177
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178 fn build_ui(application: &gtk::Application) {
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179 let dev = match create_uinput_device() {
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180 Ok(dev) => Arc::new(dev),
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181 Err(err) => {
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parents:
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182 match err.kind() {
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183 ErrorKind::NotFound => {
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parents:
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184 eprintln!("Couldn’t find /dev/uinput: {}", err);
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parents:
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185 eprintln!("Maybe you forgot to `modprobe uinput`?");
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parents:
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186 }
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187 ErrorKind::PermissionDenied => {
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parents:
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188 eprintln!("Couldn’t open /dev/uinput for writing: {}", err);
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parents:
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189 eprintln!("Maybe you aren’t allowed to create input devices?");
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parents:
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190 }
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191 _ => eprintln!("Couldn’t open /dev/uinput for writing: {}", err),
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parents:
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192 }
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parents:
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193 return;
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parents:
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194 }
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parents:
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195 };
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196 println!(
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197 "New device at {:?} ({:?})",
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198 dev.evdev_path().unwrap(),
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199 dev.sys_path().unwrap()
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parents:
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200 );
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201
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202 let window = gtk::ApplicationWindow::new(application);
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203
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204 window.set_title("tablet-emu");
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205 window.set_position(gtk::WindowPosition::Center);
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206
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207 let hbox = gtk::Box::new(gtk::Orientation::Horizontal, 0);
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208 let tools_box = gtk::Box::new(gtk::Orientation::Vertical, 0);
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209
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210 let tool_name = Arc::new(Mutex::new(String::from("Pen")));
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211 let tool1 = gtk::Button::with_label("Pen");
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212 let tool2 = gtk::Button::with_label("Rubber");
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213 let tool3 = gtk::Button::with_label("Brush");
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214 let tool4 = gtk::Button::with_label("Pencil");
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215 let tool5 = gtk::Button::with_label("Airbrush");
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216
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217 macro_rules! impl_tool_signal {
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218 ($tool:ident) => {
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219 let tool_name_weak = Arc::downgrade(&tool_name);
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220 $tool.connect_clicked(move |b| {
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221 let tool_name = tool_name_weak.upgrade().unwrap();
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222 let mut tool_name = tool_name.lock().unwrap();
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223 *tool_name = b.get_label().unwrap().to_string();
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224 });
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parents:
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225 };
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226 };
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227 impl_tool_signal!(tool1);
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228 impl_tool_signal!(tool2);
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229 impl_tool_signal!(tool3);
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230 impl_tool_signal!(tool4);
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231 impl_tool_signal!(tool5);
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232
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233 tools_box.add(&tool1);
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234 tools_box.add(&tool2);
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235 tools_box.add(&tool3);
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236 tools_box.add(&tool4);
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237 tools_box.add(&tool5);
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238
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239 let current_size = Arc::new(Mutex::new((WIDTH as f64, HEIGHT as f64)));
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240 let pressed = Arc::new(Mutex::new(false));
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241
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242 let drawing_area = gtk::DrawingArea::new();
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243 drawing_area.set_size_request(WIDTH, HEIGHT);
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parents:
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244 drawing_area.set_hexpand(true);
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245 drawing_area.set_events(
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parents:
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246 gdk::EventMask::BUTTON_PRESS_MASK
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247 | gdk::EventMask::BUTTON_RELEASE_MASK
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248 | gdk::EventMask::POINTER_MOTION_MASK,
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249 );
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250 let current_size_weak = Arc::downgrade(&current_size);
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251 drawing_area.connect_configure_event(move |_, event| {
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252 let current_size = current_size_weak.upgrade().unwrap();
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253 let mut current_size = current_size.lock().unwrap();
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254 *current_size = match event.get_size() {
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255 (width, height) => (width as f64, height as f64),
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parents:
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256 };
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257 true
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parents:
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258 });
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parents:
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259 let dev_weak = Arc::downgrade(&dev);
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parents:
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260 let current_size_weak = Arc::downgrade(&current_size);
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261 let pressed_weak = Arc::downgrade(&pressed);
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262 drawing_area.connect_button_press_event(move |_, event| {
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parents:
diff changeset
263 if event.get_button() != 1 {
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264 return Inhibit(false);
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parents:
diff changeset
265 }
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parents:
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266
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267 let dev = dev_weak.upgrade().unwrap();
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268 let pressed = pressed_weak.upgrade().unwrap();
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269 let mut pressed = pressed.lock().unwrap();
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270 *pressed = true;
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271 let (x, y) = event.get_position();
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272 println!("press tool {} at {}, {}", tool_name.lock().unwrap(), x, y);
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parents:
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273 let current_size = current_size_weak.upgrade().unwrap();
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parents:
diff changeset
274 let current_size = current_size.lock().unwrap();
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parents:
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275 let (width, height) = *current_size;
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parents:
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276 dev.write(&[
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parents:
diff changeset
277 input_event_new(
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parents:
diff changeset
278 EventKind::Absolute,
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parents:
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279 AbsoluteAxis::X,
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parents:
diff changeset
280 (x * MAX_X as f64 / width) as i32,
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
diff changeset
281 ),
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parents:
diff changeset
282 input_event_new(
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parents:
diff changeset
283 EventKind::Absolute,
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parents:
diff changeset
284 AbsoluteAxis::Y,
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parents:
diff changeset
285 (y * MAX_Y as f64 / height) as i32,
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
diff changeset
286 ),
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parents:
diff changeset
287 input_event_new(EventKind::Absolute, AbsoluteAxis::Z, 0),
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parents:
diff changeset
288 input_event_new(EventKind::Absolute, AbsoluteAxis::Wheel, 0),
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parents:
diff changeset
289 input_event_new(EventKind::Absolute, AbsoluteAxis::Pressure, 1024),
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parents:
diff changeset
290 input_event_new(EventKind::Absolute, AbsoluteAxis::Distance, 0),
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parents:
diff changeset
291 input_event_new(EventKind::Absolute, AbsoluteAxis::TiltX, 16),
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parents:
diff changeset
292 input_event_new(EventKind::Absolute, AbsoluteAxis::TiltY, 0),
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
diff changeset
293 // TODO: Change the type of the second parameter here.
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parents:
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294 input_event_new(EventKind::Misc, AbsoluteAxis::X, 0),
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parents:
diff changeset
295 input_event_new(EventKind::Synchronize, AbsoluteAxis::X, 0),
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parents:
diff changeset
296 ])
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parents:
diff changeset
297 .unwrap();
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parents:
diff changeset
298 Inhibit(false)
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parents:
diff changeset
299 });
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parents:
diff changeset
300 let dev_weak = Arc::downgrade(&dev);
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parents:
diff changeset
301 let current_size_weak = Arc::downgrade(&current_size);
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parents:
diff changeset
302 let pressed_weak = Arc::downgrade(&pressed);
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parents:
diff changeset
303 drawing_area.connect_button_release_event(move |_, event| {
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parents:
diff changeset
304 if event.get_button() != 1 {
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parents:
diff changeset
305 return Inhibit(false);
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parents:
diff changeset
306 }
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parents:
diff changeset
307
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parents:
diff changeset
308 let dev = dev_weak.upgrade().unwrap();
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parents:
diff changeset
309 let (x, y) = event.get_position();
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parents:
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310 let pressed = pressed_weak.upgrade().unwrap();
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parents:
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311 let mut pressed = pressed.lock().unwrap();
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parents:
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312 *pressed = false;
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parents:
diff changeset
313 //println!("release {}, {}", x, y);
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parents:
diff changeset
314 let current_size = current_size_weak.upgrade().unwrap();
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parents:
diff changeset
315 let current_size = current_size.lock().unwrap();
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parents:
diff changeset
316 let (width, height) = *current_size;
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parents:
diff changeset
317 dev.write(&[
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parents:
diff changeset
318 input_event_new(
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parents:
diff changeset
319 EventKind::Absolute,
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parents:
diff changeset
320 AbsoluteAxis::X,
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parents:
diff changeset
321 (x * MAX_X as f64 / width) as i32,
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parents:
diff changeset
322 ),
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parents:
diff changeset
323 input_event_new(
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parents:
diff changeset
324 EventKind::Absolute,
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parents:
diff changeset
325 AbsoluteAxis::Y,
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parents:
diff changeset
326 (y * MAX_Y as f64 / height) as i32,
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
diff changeset
327 ),
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
diff changeset
328 input_event_new(EventKind::Absolute, AbsoluteAxis::Z, 0),
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parents:
diff changeset
329 input_event_new(EventKind::Absolute, AbsoluteAxis::Wheel, 0),
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
diff changeset
330 input_event_new(EventKind::Absolute, AbsoluteAxis::Pressure, 0),
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parents:
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331 input_event_new(EventKind::Absolute, AbsoluteAxis::Distance, 16),
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332 input_event_new(EventKind::Absolute, AbsoluteAxis::TiltX, 16),
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333 input_event_new(EventKind::Absolute, AbsoluteAxis::TiltY, 0),
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334 // TODO: Change the type of the second parameter here.
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335 input_event_new(EventKind::Misc, AbsoluteAxis::X, 0),
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336 input_event_new(EventKind::Synchronize, AbsoluteAxis::X, 0),
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337 ])
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338 .unwrap();
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339 Inhibit(false)
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340 });
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341 drawing_area.connect_motion_notify_event(move |_, event| {
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342 let (x, y) = event.get_position();
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343 let pressed = pressed.lock().unwrap();
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344 //println!("motion {}, {}", x, y);
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345 let current_size = current_size.lock().unwrap();
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346 let (width, height) = *current_size;
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347 dev.write(&[
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348 input_event_new(
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349 EventKind::Absolute,
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350 AbsoluteAxis::X,
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351 (x * MAX_X as f64 / width) as i32,
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352 ),
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353 input_event_new(
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354 EventKind::Absolute,
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355 AbsoluteAxis::Y,
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356 (y * MAX_Y as f64 / height) as i32,
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357 ),
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358 input_event_new(EventKind::Absolute, AbsoluteAxis::Z, 0),
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359 input_event_new(EventKind::Absolute, AbsoluteAxis::Wheel, 0),
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360 input_event_new(
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361 EventKind::Absolute,
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362 AbsoluteAxis::Pressure,
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363 if *pressed { 2048 } else { 0 },
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364 ),
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365 input_event_new(
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366 EventKind::Absolute,
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367 AbsoluteAxis::Distance,
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368 if *pressed { 0 } else { 32 },
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369 ),
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370 input_event_new(EventKind::Absolute, AbsoluteAxis::TiltX, 16),
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371 input_event_new(EventKind::Absolute, AbsoluteAxis::TiltY, 0),
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372 // TODO: Change the type of the second parameter here.
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373 input_event_new(EventKind::Misc, AbsoluteAxis::X, 0),
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374 input_event_new(EventKind::Synchronize, AbsoluteAxis::X, 0),
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375 ])
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376 .unwrap();
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377 Inhibit(false)
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378 });
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379 drawing_area.connect_draw(move |_, ctx| {
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380 //println!("drawing {}", drawing_area);
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381 ctx.set_source_rgb(1., 0., 0.);
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382 ctx.set_operator(cairo::Operator::Screen);
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383 ctx.paint();
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384 Inhibit(false)
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385 });
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386
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387 hbox.add(&tools_box);
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388 hbox.add(&drawing_area);
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389
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390 window.add(&hbox);
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391
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392 window.show_all();
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393 }
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394
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395 fn main() {
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396 let application = gtk::Application::new(
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397 Some("fr.linkmauve.TabletEmu"),
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398 gio::ApplicationFlags::empty(),
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399 )
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400 .expect("Initialisation failed…");
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401 application.connect_activate(build_ui);
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402 application.run(&args().collect::<Vec<_>>());
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403 }