Mercurial > tablet-emu

annotate src/gtk.rs @ 17:0bce7fe96937

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Add a client, copy of the GTK interface.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Thu, 26 Aug 2021 22:00:55 +0200
parents 478cf2a7d577
children
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1 // Tablet emulator, for people who don’t own one
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2 // Copyright © 2020 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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3 //
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4 // This program is free software: you can redistribute it and/or modify
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5 // it under the terms of the GNU Affero General Public License as published by
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6 // the Free Software Foundation, either version 3 of the License, or
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7 // (at your option) any later version.
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8 //
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9 // This program is distributed in the hope that it will be useful,
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10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 // GNU Affero General Public License for more details.
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13 //
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14 // You should have received a copy of the GNU Affero General Public License
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15 // along with this program. If not, see <https://www.gnu.org/licenses/>.
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16
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17 use crate::{state::State, DEFAULT_HEIGHT, DEFAULT_WIDTH};
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18 use gio::prelude::*;
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19 use glib::clone;
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20 use gtk::prelude::*;
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21 use input_linux::Key;
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22 use std::io::ErrorKind;
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23 use std::sync::{Arc, Mutex};
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24
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25 fn build_main_menu(app: &gtk::Application) {
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26 let quit = gio::SimpleAction::new("quit", None);
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27 app.set_accels_for_action("app.quit", &["<Control>q"]);
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28 app.add_action(&quit);
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29 quit.connect_activate(clone!(@weak app => move |_, _| app.quit()));
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30
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31 let about = gio::SimpleAction::new("about", None);
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32 app.add_action(&about);
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33 about.connect_activate(|_, _| {
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34 let about = gtk::AboutDialog::builder()
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35 .program_name("TabletEmu")
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36 .logo_icon_name("input-tablet")
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37 .website("https://hg.linkmauve.fr/tablet-emu")
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38 .version("0.1")
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39 .license_type(gtk::License::Agpl30)
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40 .copyright("© 2020 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>")
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41 .build();
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42 //about.run();
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43 about.destroy();
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44 });
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45
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46 let menu = gio::Menu::new();
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47 {
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48 let file = gio::Menu::new();
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49 file.append(Some("_Quit"), Some("app.quit"));
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50 menu.append_submenu(Some("_File"), &file);
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51 }
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52 {
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53 let help = gio::Menu::new();
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54 help.append(Some("_About"), Some("app.about"));
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55 menu.append_submenu(Some("_Help"), &help);
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56 }
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57 app.set_menubar(Some(&menu));
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58 }
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59
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60 fn build_ui(app: &gtk::Application) {
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61 build_main_menu(app);
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62
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63 let state = match State::new() {
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64 Ok(state) => Arc::new(Mutex::new(state)),
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65 Err(err) => {
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66 match err.kind() {
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67 ErrorKind::NotFound => {
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68 eprintln!("Couldn’t find /dev/uinput: {}", err);
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69 eprintln!("Maybe you forgot to `modprobe uinput`?");
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70 }
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71 ErrorKind::PermissionDenied => {
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72 eprintln!("Couldn’t open /dev/uinput for writing: {}", err);
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73 eprintln!("Maybe you aren’t allowed to create input devices?");
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74 }
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75 _ => eprintln!("Couldn’t open /dev/uinput for writing: {}", err),
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76 }
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77 std::process::exit(1);
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78 }
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79 };
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80
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81 let hbox = gtk::Box::builder()
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82 .orientation(gtk::Orientation::Horizontal)
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83 .build();
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84 let tools_box = gtk::Box::builder()
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85 .orientation(gtk::Orientation::Vertical)
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86 .build();
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87
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88 macro_rules! impl_tool {
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89 ($tool:tt) => {
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90 let tool = gtk::Button::with_mnemonic($tool);
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91 let state_weak = Arc::downgrade(&state);
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92 tool.connect_clicked(move |b| {
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93 let state = state_weak.upgrade().unwrap();
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94 let mut state = state.lock().unwrap();
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95 let tool = match b.label().unwrap().as_str() {
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96 "_Pen" => Key::ButtonToolPen,
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97 "_Rubber" => Key::ButtonToolRubber,
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98 "_Brush" => Key::ButtonToolBrush,
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99 "P_encil" => Key::ButtonToolPencil,
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100 "_Airbrush" => Key::ButtonToolAirbrush,
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101 _ => unreachable!(),
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102 };
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103 state.select_tool(tool);
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104 });
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105 tools_box.append(&tool);
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106 };
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107 }
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108 impl_tool!("_Pen");
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109 impl_tool!("_Rubber");
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110 impl_tool!("_Brush");
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111 impl_tool!("P_encil");
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112 impl_tool!("_Airbrush");
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113
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114 let drawing_area = gtk::DrawingArea::builder()
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115 .content_width(DEFAULT_WIDTH)
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116 .content_height(DEFAULT_HEIGHT)
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117 .hexpand(true)
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118 .build();
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119 let gesture_click = gtk::GestureClick::new();
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120 let event_controller = gtk::EventControllerMotion::new();
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121 let state_weak = Arc::downgrade(&state);
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122 drawing_area.connect_resize(move |_, width, height| {
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123 let state = state_weak.upgrade().unwrap();
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124 let mut state = state.lock().unwrap();
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125 state.set_size(width, height);
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126 });
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127 let state_weak = Arc::downgrade(&state);
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128 gesture_click.connect_pressed(move |_, n_press, x, y| {
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129 if n_press != 1 {
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130 return;
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131 }
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132
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133 let state = state_weak.upgrade().unwrap();
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134 let mut state = state.lock().unwrap();
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135 state.press(x, y).unwrap();
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136 });
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137 let state_weak = Arc::downgrade(&state);
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138 gesture_click.connect_released(move |_, n_press, x, y| {
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139 if n_press != 1 {
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140 return;
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141 }
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142
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143 let state = state_weak.upgrade().unwrap();
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144 let mut state = state.lock().unwrap();
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145 state.release(x, y).unwrap();
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146 });
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147 event_controller.connect_motion(move |_, x, y| {
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148 let mut state = state.lock().unwrap();
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149 state.motion(x, y).unwrap();
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150 });
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151 drawing_area.add_controller(&gesture_click);
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152 drawing_area.add_controller(&event_controller);
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153 drawing_area.set_draw_func(move |_, ctx, _, _| {
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154 ctx.set_source_rgb(1., 0., 0.);
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155 ctx.set_operator(cairo::Operator::Screen);
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156 ctx.paint().unwrap();
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157 });
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158
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159 hbox.append(&tools_box);
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160 hbox.append(&drawing_area);
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161
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162 let window = gtk::ApplicationWindow::builder()
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163 .application(app)
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164 .title("tablet-emu")
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165 .default_width(800)
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166 .default_height(480)
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167 .child(&hbox)
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168 .build();
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169
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170 window.show();
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171 }
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172
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173 pub fn main(_args: &[String]) {
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174 let app = gtk::Application::builder()
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175 .application_id("fr.linkmauve.TabletEmu")
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176 .build();
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177 app.connect_activate(build_ui);
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178 app.run();
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179 }