├── .gitignore ├── Cargo.lock ├── Cargo.toml ├── LICENSE ├── examples └── sample_config.toml ├── readme.md ├── screencap.gif ├── shell.nix └── src ├── animations.rs └── main.rs /.gitignore: -------------------------------------------------------------------------------- 1 | # Generated by Cargo 2 | # will have compiled files and executables 3 | /target/ 4 | 5 | # These are backup files generated by rustfmt 6 | **/*.rs.bk 7 | -------------------------------------------------------------------------------- /Cargo.lock: -------------------------------------------------------------------------------- 1 | # This file is automatically @generated by Cargo. 2 | # It is not intended for manual editing. 3 | [[package]] 4 | name = "cfg-if" 5 | version = "0.1.10" 6 | source = "registry+https://github.com/rust-lang/crates.io-index" 7 | 8 | [[package]] 9 | name = "confy" 10 | version = "0.3.1" 11 | source = "registry+https://github.com/rust-lang/crates.io-index" 12 | dependencies = [ 13 | 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-------------------------------------------------------------------------------- 1 | [package] 2 | name = "xcursorlocate" 3 | version = "0.1.1" 4 | authors = ["Akshay "] 5 | edition = "2018" 6 | description = "cursor location indicator for X11" 7 | homepage = "https://github.com/nerdypepper/xcursorlocate" 8 | repository = "https://github.com/nerdypepper/xcursorlocate" 9 | readme = "./readme.md" 10 | keywords = ["cursor", "x11", "visual", "xcb"] 11 | categories = ["graphics", "visualization"] 12 | license = "GPL-3.0-or-later" 13 | 14 | [dependencies] 15 | confy = "0.3.1" 16 | 17 | [dependencies.xcb] 18 | version = "0.9" 19 | features = ["shape"] # NOTE: mapping and unmapping circular windows might be faster 20 | 21 | [dependencies.serde] 22 | version = "1.0.103" 23 | features = ["derive"] 24 | 25 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL 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But first, please read 674 | . 675 | 676 | -------------------------------------------------------------------------------- /examples/sample_config.toml: -------------------------------------------------------------------------------- 1 | # mostly under ~/.config/xcursorlocate/ or ~/.xcursorlocate/ as 2 | # xcursorlocate.toml. auto generated on first run. 3 | 4 | # the size of the largest circle in the indicator 5 | max_size = 200 6 | 7 | # duration in milliseconds. values less than 200 might lead to the indicator 8 | # not being drawn on the screen at all 9 | duration = 500 10 | 11 | # the width of each circle in display pixels. 12 | thickness = 1 13 | 14 | # number of frames in the animation 15 | # could result in choppy animations if you set it very high 16 | # (it can't draw 200 frames in 500 millis dude) 17 | framerate = 30 18 | 19 | # indicator color, set to hex (0xRRGGBB) or 32 bit int. 20 | # alpha not supported (yet) 21 | color = 0x00FECA 22 | 23 | # values: Grow, Shrink, GrowOutline, ShrinkOutline 24 | animation = 'Shrink' 25 | -------------------------------------------------------------------------------- /readme.md: -------------------------------------------------------------------------------- 1 | # xcursorlocate 2 | 3 | > cursor location indicator for x11 4 | 5 | ![preview.gif](screencap.gif) 6 | 7 | ### install 8 | 9 | to build `xcursorlocate`, you require the `libxcb-devel` 10 | package (please follow [these](https://www.rust-lang.org/tools/install) instructions to install `cargo` and `rust`). 11 | 12 | ```shell 13 | # from crates.io 14 | $ cargo install xcursorlocate 15 | 16 | # from github 17 | $ git clone https://github.com/nerdypepper/xcursorlocate 18 | $ cd xcursorlocate 19 | $ cargo install --force --path ./ 20 | 21 | # make sure to add ~/.cargo/bin to your $PATH 22 | ``` 23 | 24 | ### usage 25 | 26 | have your window manager trigger `xcursorlocate` on a key 27 | press, i use `sxhkd` to handle key bindings: 28 | ```shell 29 | # ~/.config/sxhkd/sxhkdrc 30 | ctrl + Escape: 31 | xcursorlocate 32 | ``` 33 | 34 | ### configuration 35 | 36 | `xcursorlocate` is configured via a `.toml` file, which is 37 | present in `$XDG_CONFIG_HOME/xcursorlocate`. a basic config 38 | is generated on first run, a sample config can be found in 39 | the [`examples`](./examples/sample_config.toml) directory 40 | (may not always be up to date). 41 | 42 | ### uninstall 43 | 44 | :( 45 | 46 | ``` 47 | # using cargo 48 | $ cargo uninstall xcursorlocate 49 | 50 | # manually 51 | $ rm -rf xcursorlocate/ 52 | $ rm -rf ~/.config/xcursorlocate/ 53 | $ rm -f $HOME/.cargo/bin/xcursorlocate 54 | ``` 55 | 56 | ### todo: 57 | 58 | - use `xrender` for smooth circles 59 | - use opengl for fancy fx maybe? 60 | - add interface 61 | - ~~toml config~~ 62 | -------------------------------------------------------------------------------- /screencap.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/oppiliappan/xcursorlocate/b1a6db896737dc682a54139237109fc491f757ca/screencap.gif -------------------------------------------------------------------------------- /shell.nix: -------------------------------------------------------------------------------- 1 | { pkgs ? import {} }: 2 | 3 | pkgs.mkShell { 4 | name = "rust-env"; 5 | nativeBuildInputs = with pkgs; [ 6 | rustc cargo 7 | ]; 8 | buildInputs = with pkgs; [ xorg.libxcb python3 ]; 9 | 10 | RUST_BACKTRACE = 1; 11 | } 12 | -------------------------------------------------------------------------------- /src/animations.rs: -------------------------------------------------------------------------------- 1 | use crate::IndicatorConfig; 2 | use std::thread; 3 | use std::time::Duration; 4 | 5 | pub struct Animation { 6 | duration_per_frame: Duration, 7 | frames: Vec, 8 | clear: bool, 9 | } 10 | 11 | impl Animation { 12 | pub fn circles( 13 | config: IndicatorConfig, 14 | function: Box>, 15 | clear: bool, 16 | ) -> Animation { 17 | let no_of_frames = config.framerate; 18 | let duration_per_frame = 19 | Duration::from_millis(config.duration).div_f64(no_of_frames as f64); 20 | let frames = function 21 | .map(|i| { 22 | xcb::Arc::new( 23 | ((config.max_size as f32) / (2. * no_of_frames as f32) * i as f32) as i16, // x 24 | ((config.max_size as f32) / (2. * no_of_frames as f32) * i as f32) as i16, // y 25 | (config.max_size) - (config.max_size / no_of_frames) * i as u16, // width 26 | (config.max_size) - (config.max_size / no_of_frames) * i as u16, // height 27 | 0, // start angle 28 | 360 << 6, // end angle 29 | ) 30 | }) 31 | .collect::>(); 32 | return Animation { 33 | duration_per_frame, 34 | frames, 35 | clear, 36 | }; 37 | } 38 | pub fn play(&self, conn: &xcb::Connection, win: u32, gfx_ctx: u32) { 39 | for frame in &self.frames { 40 | xcb::poly_arc(&conn, win, gfx_ctx, &[*frame]); 41 | conn.flush(); 42 | if self.clear { 43 | xcb::clear_area(&conn, true, win, frame.x(), frame.y(), 2000, 2000); 44 | } 45 | thread::sleep(self.duration_per_frame); 46 | } 47 | } 48 | } 49 | -------------------------------------------------------------------------------- /src/main.rs: -------------------------------------------------------------------------------- 1 | use std::thread; 2 | use std::time::Duration; 3 | 4 | use serde::{Deserialize, Serialize}; 5 | 6 | mod animations; 7 | use animations::Animation; 8 | 9 | #[derive(Serialize, Deserialize)] 10 | enum Kind { 11 | Grow, 12 | GrowOutline, 13 | Shrink, 14 | ShrinkOutline, 15 | } 16 | 17 | #[derive(Serialize, Deserialize)] 18 | pub struct IndicatorConfig { 19 | max_size: u16, // display pixels 20 | duration: u64, // milliseconds 21 | thickness: u32, // display pixels 22 | framerate: u16, // number of circles to display 23 | color: u32, // color in hex, eg.: 0x00FECA 24 | animation: Kind, // 'Grow' | 'Shrink' | 'GrowOutline' | 'ShrinkOutline' 25 | } 26 | 27 | // sane defaults 28 | impl std::default::Default for IndicatorConfig { 29 | fn default() -> IndicatorConfig { 30 | IndicatorConfig { 31 | max_size: 300u16, 32 | duration: 500u64, 33 | thickness: 1, 34 | framerate: 30, 35 | color: 0xFFFFFF, 36 | animation: Kind::Grow, 37 | } 38 | } 39 | } 40 | 41 | fn main() { 42 | let config: IndicatorConfig = confy::load("xcursorlocate").unwrap(); 43 | 44 | let padding = config.thickness as u16; // (???) largest circle gets clipped 45 | let win_size = config.max_size + padding; 46 | 47 | let (conn, screen_num) = xcb::Connection::connect(None) 48 | .unwrap_or_else(|e| panic!("Unable to connect to X session: {}", e)); 49 | let setup = conn.get_setup(); 50 | let screen = setup 51 | .roots() 52 | .nth(screen_num as usize) 53 | .unwrap_or_else(|| panic!("Error accessing screen!")); 54 | 55 | // fetch all depths 56 | let depths = screen.allowed_depths(); 57 | let mut alpha_depths = depths.filter(|d| d.depth() == 32u8).peekable(); 58 | if alpha_depths.peek().is_none() { 59 | panic!("Alpha channel not found!"); 60 | } 61 | 62 | // fetch a visual supporting alpha channels 63 | let visual = alpha_depths 64 | .next() 65 | .unwrap() 66 | .visuals() 67 | .nth(1 as usize) 68 | .unwrap(); 69 | 70 | let win_start_x = 0; 71 | let win_start_y = 0; 72 | 73 | let colormap = conn.generate_id(); 74 | xcb::create_colormap( 75 | &conn, 76 | xcb::COLORMAP_ALLOC_NONE as u8, 77 | colormap, 78 | screen.root(), 79 | visual.visual_id(), 80 | ); 81 | 82 | let win = conn.generate_id(); 83 | xcb::create_window( 84 | &conn, 85 | 32u8, 86 | win, 87 | screen.root(), 88 | win_start_x, 89 | win_start_y, 90 | win_size, 91 | win_size, 92 | 0, 93 | xcb::WINDOW_CLASS_INPUT_OUTPUT as u16, 94 | visual.visual_id(), 95 | &[ 96 | (xcb::CW_BACK_PIXEL, 0x00), 97 | (xcb::CW_BORDER_PIXEL, 0x00), // you need this if you use alpha apparently 98 | (xcb::CW_OVERRIDE_REDIRECT, 1u32), // dont take focus 99 | (xcb::CW_EVENT_MASK, xcb::EVENT_MASK_EXPOSURE), 100 | (xcb::CW_COLORMAP, colormap), 101 | ], 102 | ); 103 | 104 | let gfx_ctx = conn.generate_id(); 105 | xcb::create_gc( 106 | &conn, 107 | gfx_ctx, 108 | win, 109 | &[ 110 | (xcb::GC_FOREGROUND, config.color), 111 | (xcb::GC_GRAPHICS_EXPOSURES, 0), 112 | (xcb::GC_LINE_WIDTH, config.thickness), 113 | ], 114 | ); 115 | 116 | xcb::free_colormap(&conn, colormap); 117 | 118 | let win_type_atom = xcb::intern_atom(&conn, true, "_NET_WM_WINDOW_TYPE") 119 | .get_reply() 120 | .unwrap() 121 | .atom(); 122 | let win_menu_atom = xcb::intern_atom(&conn, true, "_NET_WM_WINDOW_TYPE_SPLASH") 123 | .get_reply() 124 | .unwrap() 125 | .atom(); 126 | 127 | let win_state_atom = xcb::intern_atom(&conn, true, "_NET_WM_STATE") 128 | .get_reply() 129 | .unwrap() 130 | .atom(); 131 | let win_on_top_atom = xcb::intern_atom(&conn, true, "_NET_WM_STATE_STAYS_ON_TOP") 132 | .get_reply() 133 | .unwrap() 134 | .atom(); 135 | 136 | xcb::change_property( 137 | &conn, 138 | xcb::PROP_MODE_REPLACE as u8, 139 | win, 140 | win_type_atom, 141 | xcb::ATOM_ATOM, 142 | 32, 143 | &[win_menu_atom], 144 | ); 145 | xcb::change_property( 146 | &conn, 147 | xcb::PROP_MODE_APPEND as u8, 148 | win, 149 | win_state_atom, 150 | xcb::ATOM_ATOM, 151 | 32, 152 | &[win_on_top_atom], 153 | ); 154 | 155 | let fr = config.framerate; 156 | let animation = match config.animation { 157 | Kind::Grow => Animation::circles(config, Box::new((0..fr).rev()), false), 158 | Kind::GrowOutline => Animation::circles(config, Box::new((0..fr).rev()), true), 159 | Kind::Shrink => Animation::circles(config, Box::new(0..fr), false), 160 | Kind::ShrinkOutline => Animation::circles(config, Box::new(0..fr), true), 161 | }; 162 | 163 | xcb::map_window(&conn, win); 164 | conn.flush(); 165 | 166 | // wait till window is mapped 167 | let event = conn.wait_for_event(); 168 | match event { 169 | None => {} 170 | Some(e) => { 171 | let r = e.response_type() & !0x80; 172 | match r { 173 | // the window is mapped to display 174 | xcb::EXPOSE => { 175 | let pointer = xcb::query_pointer(&conn, win).get_reply().unwrap(); 176 | let p_x = pointer.root_x(); 177 | let p_y = pointer.root_y(); 178 | 179 | move_win_to_cursor(&conn, win, win_size, p_x, p_y); 180 | animation.play(&conn, win, gfx_ctx); 181 | 182 | thread::sleep(Duration::from_millis(100)); 183 | } 184 | _ => eprintln!("how did you even get here: {}", r), 185 | } 186 | } 187 | } 188 | } 189 | 190 | fn move_win_to_cursor( 191 | conn: &xcb::Connection, 192 | win: u32, 193 | win_size: u16, 194 | p_x: i16, 195 | p_y: i16, 196 | ) -> (u32, u32) { 197 | let win_x = p_x - (win_size as i16) / 2; 198 | let win_y = p_y - (win_size as i16) / 2; 199 | let win_x = if win_x < 0 { 0 } else { win_x as u32 }; 200 | let win_y = if win_y < 0 { 0 } else { win_y as u32 }; 201 | 202 | xcb::configure_window( 203 | &conn, 204 | win, 205 | &[ 206 | (xcb::CONFIG_WINDOW_X as u16, win_x), 207 | (xcb::CONFIG_WINDOW_Y as u16, win_y), 208 | ], 209 | ); 210 | conn.flush(); 211 | return (win_x, win_y); 212 | } 213 | --------------------------------------------------------------------------------