Mercurial > tablet-emu

annotate src/main.rs @ 5:cdbf3a2c9af8

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Add a very simple menu.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sun, 01 Nov 2020 14:34:02 +0100
parents 2e074d185151
children dd10331549c6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
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1 use gio::prelude::*;
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2 use gtk::prelude::*;
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cdbf3a2c9af8 Add a very simple menu.
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3 use glib::clone;
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4
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5 use std::env::args;
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6 use std::fs::{File, OpenOptions};
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7 use std::io::ErrorKind;
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8 use std::sync::{Arc, Mutex};
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9
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10 use input_linux::{
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11 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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12 InputId, InputProperty, Key, MiscKind, SynchronizeKind, UInputHandle,
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13 };
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14
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15 const WIDTH: i32 = 320;
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16 const HEIGHT: i32 = 180;
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17
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18 const MAX_X: i32 = 69920;
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19 const MAX_Y: i32 = 39980;
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20
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21 fn create_uinput_device() -> std::io::Result<UInputHandle<File>> {
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22 let file = OpenOptions::new().write(true).open("/dev/uinput")?;
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23 let dev = UInputHandle::new(file);
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24
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25 dev.set_evbit(EventKind::Synchronize)?;
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26 dev.set_evbit(EventKind::Key)?;
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27 dev.set_evbit(EventKind::Absolute)?;
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28 dev.set_evbit(EventKind::Misc)?;
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29 dev.set_keybit(Key::ButtonToolPen)?;
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30 dev.set_keybit(Key::ButtonToolRubber)?;
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31 dev.set_keybit(Key::ButtonToolBrush)?;
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32 dev.set_keybit(Key::ButtonToolPencil)?;
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33 dev.set_keybit(Key::ButtonToolAirbrush)?;
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34 dev.set_keybit(Key::ButtonTouch)?;
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35 dev.set_keybit(Key::ButtonStylus)?;
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36 dev.set_keybit(Key::ButtonStylus2)?;
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37 dev.set_keybit(Key::ButtonStylus3)?;
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38 dev.set_mscbit(MiscKind::Serial)?;
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39 dev.set_propbit(InputProperty::Direct)?;
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40
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41 dev.set_absbit(AbsoluteAxis::X)?;
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42 dev.set_absbit(AbsoluteAxis::Y)?;
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43 dev.set_absbit(AbsoluteAxis::Z)?;
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44 dev.set_absbit(AbsoluteAxis::Wheel)?;
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45 dev.set_absbit(AbsoluteAxis::Pressure)?;
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46 dev.set_absbit(AbsoluteAxis::Distance)?;
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47 dev.set_absbit(AbsoluteAxis::TiltX)?;
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48 dev.set_absbit(AbsoluteAxis::TiltY)?;
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49 dev.set_absbit(AbsoluteAxis::Misc)?;
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50
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51 let id = InputId {
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52 bustype: 3,
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53 vendor: 0x56a,
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54 product: 0x350,
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55 version: 0xb,
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56 };
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57
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58 let x = AbsoluteInfoSetup {
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59 axis: AbsoluteAxis::X,
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60 info: AbsoluteInfo {
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61 value: 0,
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62 minimum: 0,
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63 maximum: MAX_X,
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64 fuzz: 0,
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65 flat: 0,
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66 resolution: 200,
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67 },
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68 };
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69 let y = AbsoluteInfoSetup {
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70 axis: AbsoluteAxis::Y,
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71 info: AbsoluteInfo {
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72 value: 0,
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73 minimum: 0,
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74 maximum: MAX_Y,
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75 fuzz: 0,
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76 flat: 0,
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77 resolution: 200,
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78 },
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79 };
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80 let z = AbsoluteInfoSetup {
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81 axis: AbsoluteAxis::Z,
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82 info: AbsoluteInfo {
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83 value: 0,
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84 minimum: -900,
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85 maximum: 899,
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86 fuzz: 0,
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87 flat: 0,
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88 resolution: 287,
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89 },
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90 };
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91 let wheel = AbsoluteInfoSetup {
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92 axis: AbsoluteAxis::Wheel,
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93 info: AbsoluteInfo {
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94 value: 0,
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95 minimum: 0,
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96 maximum: 2047,
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97 fuzz: 0,
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98 flat: 0,
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99 resolution: 0,
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100 },
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101 };
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102 let pressure = AbsoluteInfoSetup {
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103 axis: AbsoluteAxis::Pressure,
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104 info: AbsoluteInfo {
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105 value: 0,
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106 minimum: 0,
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107 maximum: 8196,
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108 fuzz: 0,
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109 flat: 0,
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110 resolution: 0,
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111 },
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112 };
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113 let distance = AbsoluteInfoSetup {
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114 axis: AbsoluteAxis::Distance,
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115 info: AbsoluteInfo {
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116 value: 0,
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117 minimum: 0,
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118 maximum: 63,
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119 fuzz: 0,
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120 flat: 0,
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121 resolution: 0,
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122 },
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123 };
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124 let tilt_x = AbsoluteInfoSetup {
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125 axis: AbsoluteAxis::TiltX,
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126 info: AbsoluteInfo {
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127 value: 0,
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128 minimum: -64,
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129 maximum: 63,
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130 fuzz: 0,
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131 flat: 0,
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132 resolution: 57,
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133 },
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134 };
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135 let tilt_y = AbsoluteInfoSetup {
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136 axis: AbsoluteAxis::TiltY,
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137 info: AbsoluteInfo {
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138 value: 0,
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139 minimum: -64,
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140 maximum: 63,
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141 fuzz: 0,
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142 flat: 0,
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143 resolution: 57,
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144 },
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145 };
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146 let misc = AbsoluteInfoSetup {
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147 axis: AbsoluteAxis::Misc,
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148 info: AbsoluteInfo {
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149 value: 0,
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150 minimum: 0,
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151 maximum: 0,
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152 fuzz: 0,
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153 flat: 0,
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154 resolution: 0,
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155 },
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156 };
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157
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158 dev.create(
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159 &id,
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160 b"TabletEmu",
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161 0,
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162 &[x, y, z, wheel, pressure, distance, tilt_x, tilt_y, misc],
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163 )?;
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164 Ok(dev)
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165 }
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166
1
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167 fn input_event_new(type_: EventKind, code: u16, value: i32) -> input_event {
0
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168 input_event {
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169 time: timeval {
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170 tv_sec: 0,
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171 tv_usec: 0,
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172 },
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173 type_: type_ as u16,
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174 code,
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175 value,
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176 }
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177 }
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178
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179 fn input_axis_new(code: AbsoluteAxis, value: i32) -> input_event {
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180 input_event_new(EventKind::Absolute, code as u16, value)
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181 }
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182
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183 fn input_key_new(code: Key, value: i32) -> input_event {
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184 input_event_new(EventKind::Key, code as u16, value)
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185 }
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186
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187 fn input_misc_new(code: MiscKind, value: i32) -> input_event {
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188 input_event_new(EventKind::Misc, code as u16, value)
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189 }
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190
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191 fn input_synchronize_new(code: SynchronizeKind, value: i32) -> input_event {
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192 input_event_new(EventKind::Synchronize, code as u16, value)
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193 }
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194
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195 struct State {
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196 dev: UInputHandle<File>,
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197 width: f64,
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198 height: f64,
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199 selected_tool: Key,
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200 pressed: bool,
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201 }
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202
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203 fn build_ui(application: &gtk::Application) {
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204 let quit = gio::SimpleAction::new("quit", None);
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205 application.set_accels_for_action("app.quit", &["<Control>q"]);
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206 application.add_action(&quit);
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207 quit.connect_activate(clone!(@weak application => move |_, _| application.quit()));
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208
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209 let about = gio::SimpleAction::new("about", None);
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210 application.add_action(&about);
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211 about.connect_activate(|_, _| {
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212 let about = gtk::AboutDialog::new();
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213 about.set_program_name("TabletEmu");
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214 about.set_logo_icon_name(Some("input-tablet"));
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215 about.set_website(Some("https://hg.linkmauve.fr/tablet-emu"));
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216 about.set_version(Some("0.1"));
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217 about.set_license_type(gtk::License::Agpl30);
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218 about.set_program_name("TabletEmu");
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219 about.run();
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220 unsafe { about.destroy(); }
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221 });
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222
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223 let menu = gio::Menu::new();
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224 {
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225 let file = gio::Menu::new();
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226 file.append(Some("_Quit"), Some("app.quit"));
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227 menu.append_submenu(Some("_File"), &file);
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228 }
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229 {
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230 let help = gio::Menu::new();
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231 help.append(Some("_About"), Some("app.about"));
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232 menu.append_submenu(Some("_Help"), &help);
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233 }
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234 application.set_menubar(Some(&menu));
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235
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236 let dev = match create_uinput_device() {
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237 Ok(dev) => dev,
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238 Err(err) => {
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239 match err.kind() {
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240 ErrorKind::NotFound => {
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241 eprintln!("Couldn’t find /dev/uinput: {}", err);
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242 eprintln!("Maybe you forgot to `modprobe uinput`?");
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243 }
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244 ErrorKind::PermissionDenied => {
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245 eprintln!("Couldn’t open /dev/uinput for writing: {}", err);
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246 eprintln!("Maybe you aren’t allowed to create input devices?");
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247 }
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248 _ => eprintln!("Couldn’t open /dev/uinput for writing: {}", err),
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249 }
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250 return;
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251 }
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252 };
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253 println!(
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254 "New device at {:?} ({:?})",
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255 dev.evdev_path().unwrap(),
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256 dev.sys_path().unwrap()
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257 );
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258
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259 let state = Arc::new(Mutex::new(State {
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260 dev,
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261 width: WIDTH as f64,
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262 height: HEIGHT as f64,
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263 selected_tool: Key::ButtonToolPen,
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264 pressed: false,
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265 }));
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266
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267 let window = gtk::ApplicationWindow::new(application);
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268
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269 window.set_title("tablet-emu");
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270 window.set_position(gtk::WindowPosition::Center);
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271
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272 let hbox = gtk::Box::new(gtk::Orientation::Horizontal, 0);
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273 let tools_box = gtk::Box::new(gtk::Orientation::Vertical, 0);
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274
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275 macro_rules! impl_tool {
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276 ($tool:tt) => {
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277 let tool = gtk::Button::with_label($tool);
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278 let state_weak = Arc::downgrade(&state);
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279 tool.connect_clicked(move |b| {
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280 let state = state_weak.upgrade().unwrap();
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281 let mut state = state.lock().unwrap();
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282 state.selected_tool = match b.get_label().unwrap().as_str() {
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283 "Pen" => Key::ButtonToolPen,
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284 "Rubber" => Key::ButtonToolRubber,
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285 "Brush" => Key::ButtonToolBrush,
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286 "Pencil" => Key::ButtonToolPencil,
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287 "Airbrush" => Key::ButtonToolAirbrush,
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288 _ => unreachable!(),
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289 };
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290 });
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291 tools_box.add(&tool);
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292 };
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293 };
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294 impl_tool!("Pen");
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295 impl_tool!("Rubber");
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296 impl_tool!("Brush");
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297 impl_tool!("Pencil");
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298 impl_tool!("Airbrush");
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299
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300 let drawing_area = gtk::DrawingArea::new();
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301 drawing_area.set_size_request(WIDTH, HEIGHT);
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302 drawing_area.set_hexpand(true);
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303 drawing_area.set_events(
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304 gdk::EventMask::BUTTON_PRESS_MASK
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305 | gdk::EventMask::BUTTON_RELEASE_MASK
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306 | gdk::EventMask::POINTER_MOTION_MASK,
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307 );
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308 let state_weak = Arc::downgrade(&state);
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309 drawing_area.connect_configure_event(move |_, event| {
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310 let state = state_weak.upgrade().unwrap();
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311 let mut state = state.lock().unwrap();
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312 match event.get_size() {
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313 (width, height) => {
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314 state.width = width as f64;
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315 state.height = height as f64;
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316 }
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317 }
0
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318 true
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319 });
3
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320 let state_weak = Arc::downgrade(&state);
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321 drawing_area.connect_button_press_event(move |_, event| {
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322 if event.get_button() != 1 {
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323 return Inhibit(false);
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324 }
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325
3
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326 let state = state_weak.upgrade().unwrap();
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327 let mut state = state.lock().unwrap();
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328 state.pressed = true;
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329 let (x, y) = event.get_position();
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330 //println!("press tool {} at {}, {}", current_tool.lock().unwrap(), x, y);
3
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331 state.dev.write(&[
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332 input_axis_new(AbsoluteAxis::X, (x * MAX_X as f64 / state.width) as i32),
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333 input_axis_new(AbsoluteAxis::Y, (y * MAX_Y as f64 / state.height) as i32),
1
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334 input_axis_new(AbsoluteAxis::Z, 0),
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335 input_axis_new(AbsoluteAxis::Wheel, 0),
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336 input_axis_new(AbsoluteAxis::Pressure, 1024),
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337 input_axis_new(AbsoluteAxis::Distance, 0),
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338 input_axis_new(AbsoluteAxis::TiltX, 16),
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339 input_axis_new(AbsoluteAxis::TiltY, 0),
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340 input_misc_new(MiscKind::Serial, 0),
3
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341 input_key_new(state.selected_tool, 1),
1
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342 input_synchronize_new(SynchronizeKind::Report, 0),
0
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343 ])
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344 .unwrap();
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345 Inhibit(false)
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346 });
3
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347 let state_weak = Arc::downgrade(&state);
0
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348 drawing_area.connect_button_release_event(move |_, event| {
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349 if event.get_button() != 1 {
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350 return Inhibit(false);
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351 }
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352
3
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353 let state = state_weak.upgrade().unwrap();
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354 let mut state = state.lock().unwrap();
0
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355 let (x, y) = event.get_position();
3
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356 state.pressed = false;
0
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357 //println!("release {}, {}", x, y);
3
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358 state.dev.write(&[
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359 input_axis_new(AbsoluteAxis::X, (x * MAX_X as f64 / state.width) as i32),
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360 input_axis_new(AbsoluteAxis::Y, (y * MAX_Y as f64 / state.height) as i32),
1
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parents: 0
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361 input_axis_new(AbsoluteAxis::Z, 0),
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362 input_axis_new(AbsoluteAxis::Wheel, 0),
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parents: 0
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363 input_axis_new(AbsoluteAxis::Pressure, 0),
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parents: 0
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364 input_axis_new(AbsoluteAxis::Distance, 16),
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parents: 0
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365 input_axis_new(AbsoluteAxis::TiltX, 16),
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parents: 0
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366 input_axis_new(AbsoluteAxis::TiltY, 0),
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parents: 0
diff changeset
367 input_misc_new(MiscKind::Serial, 0),
3
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368 input_key_new(state.selected_tool, 1),
1
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diff changeset
369 input_synchronize_new(SynchronizeKind::Report, 0),
0
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370 ])
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371 .unwrap();
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372 Inhibit(false)
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373 });
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374 drawing_area.connect_motion_notify_event(move |_, event| {
3
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375 let state = state.lock().unwrap();
0
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376 let (x, y) = event.get_position();
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377 //println!("motion {}, {}", x, y);
3
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378 state.dev.write(&[
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379 input_axis_new(AbsoluteAxis::X, (x * MAX_X as f64 / state.width) as i32),
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380 input_axis_new(AbsoluteAxis::Y, (y * MAX_Y as f64 / state.height) as i32),
1
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parents: 0
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381 input_axis_new(AbsoluteAxis::Z, 0),
6dbe2bbeef70 Improve input event types with helper functions.
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diff changeset
382 input_axis_new(AbsoluteAxis::Wheel, 0),
3
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383 input_axis_new(AbsoluteAxis::Pressure, if state.pressed { 2048 } else { 0 }),
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diff changeset
384 input_axis_new(AbsoluteAxis::Distance, if state.pressed { 0 } else { 32 }),
1
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parents: 0
diff changeset
385 input_axis_new(AbsoluteAxis::TiltX, 16),
6dbe2bbeef70 Improve input event types with helper functions.
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parents: 0
diff changeset
386 input_axis_new(AbsoluteAxis::TiltY, 0),
6dbe2bbeef70 Improve input event types with helper functions.
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parents: 0
diff changeset
387 input_misc_new(MiscKind::Serial, 0),
3
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diff changeset
388 input_key_new(state.selected_tool, 1),
1
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parents: 0
diff changeset
389 input_synchronize_new(SynchronizeKind::Report, 0),
0
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diff changeset
390 ])
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391 .unwrap();
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392 Inhibit(false)
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393 });
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parents:
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394 drawing_area.connect_draw(move |_, ctx| {
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395 //println!("drawing {}", drawing_area);
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396 ctx.set_source_rgb(1., 0., 0.);
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diff changeset
397 ctx.set_operator(cairo::Operator::Screen);
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diff changeset
398 ctx.paint();
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parents:
diff changeset
399 Inhibit(false)
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parents:
diff changeset
400 });
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parents:
diff changeset
401
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parents:
diff changeset
402 hbox.add(&tools_box);
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parents:
diff changeset
403 hbox.add(&drawing_area);
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parents:
diff changeset
404
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405 window.add(&hbox);
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parents:
diff changeset
406
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parents:
diff changeset
407 window.show_all();
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parents:
diff changeset
408 }
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parents:
diff changeset
409
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parents:
diff changeset
410 fn main() {
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parents:
diff changeset
411 let application = gtk::Application::new(
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parents:
diff changeset
412 Some("fr.linkmauve.TabletEmu"),
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413 gio::ApplicationFlags::empty(),
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parents:
diff changeset
414 )
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parents:
diff changeset
415 .expect("Initialisation failed…");
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parents:
diff changeset
416 application.connect_activate(build_ui);
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parents:
diff changeset
417 application.run(&args().collect::<Vec<_>>());
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parents:
diff changeset
418 }