v1.2

random lockscreen message, remove rand dep for audio player, add version to about window, add o/O to malvim, add circles to draw, bug fixes, minor byte savings for font .alpha format

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ming-wm"
-version = "1.1.0"
+version = "1.2.0"
 repository = "https://github.com/stjet/ming-wm"
 license = "GPL-3.0-or-later"
 edition = "2021"
@@ -20,7 +20,6 @@ ming-wm-lib = { path = "ming-wm-lib" }
 wm = { path = "wm", optional = true }
 linux = { path = "linux", optional = true }
 rodio = { version = "0.19.0", default-features = false, features = [ "flac", "mp3", "symphonia-vorbis", "wav" ], optional = true }
-rand = { version = "0.9.0", default-features = false, features = [ "small_rng" ], optional = true }
 id3 = { version = "1.10.0", optional = true }
 mp4ameta = { version = "0.11.0", optional = true }
 metaflac = { version = "0.2.5", optional = true }
@@ -28,7 +27,7 @@ metaflac = { version = "0.2.5", optional = true }
 [features]
 default = [ "wm", "terminal" ]
 terminal = [ "linux" ]
-audio_player = [ "id3", "mp4ameta", "metaflac", "rand", "rodio" ]
+audio_player = [ "id3", "mp4ameta", "metaflac", "rodio" ]
 
 [profile.release]
 lto = true
@@ -63,3 +62,7 @@ path = "src/bin/malvim.rs"
 [[bin]]
 name = "mingGames_Reversi"
 path = "src/bin/reversi.rs"
+
+[[bin]]
+name = "mingUtils_Draw"
+path = "src/bin/draw.rs"

build.rs

@@ -35,7 +35,7 @@ fn font_chars_to_alphas(dir: &str) {
         ch.push(row);
       }
       let ch: Vec<String> = ch.into_iter().map(|row| {
-        row.join(",")
+        row.join(",").replace(",,,,", ":").replace(",,,", ";").replace(",,", ".")
       }).collect();
       let chars: Vec<char> = file_name[0].chars().collect();
       File::create(dir.to_string() + "/" + &chars[0].to_string() + ".alpha").unwrap().write_all(
@@ -61,7 +61,9 @@ fn main() {
   }
   //copy bmp folders to target
   let profile = env::var_os("PROFILE").unwrap().to_string_lossy().to_string();
+  Command::new("rm").arg("-rf").arg(format!("./target/{}/ming_bmps", profile)).output().unwrap(); //delete at target first so cp works
   Command::new("cp").arg("-r").arg("./bmps").arg(format!("./target/{}/ming_bmps", profile)).output().unwrap();
   //also copy the docs folder
+  Command::new("rm").arg("-rf").arg(format!("./target/{}/ming_docs", profile)).output().unwrap();
   Command::new("cp").arg("-r").arg("./docs").arg(format!("./target/{}/ming_docs", profile)).output().unwrap();
 }

docs/window-likes/draw.md

@@ -0,0 +1,15 @@
+Very basic drawing board.
+
+## Moving
+
+Arrow keys or hjkl. `i` to enter input mode. Use the enter key to finish a line or rectangle. Escape to cancel line or rectangle in progress.
+
+## Input Commands
+
+- `line/l`: Start line with current point as start. Move and hit enter to determine line endpoint
+- `rect/r`: Start rect with current point as a corner. Move and hit enter to determine the opposite corner
+- `circle/c`: Start circle with current point as centre. Move and hit enter to determine radius
+- `color/co/colour [lowercase 6 char hex string]`: Set current colour
+- `linewidth/lw [int]`: Set current line width
+- `undo`: Undo last draw
+- `clear`: Clear all drawings

install

@@ -16,3 +16,4 @@ cp ./target/release/mingGames_Minesweeper /usr/local/bin/mingGames_Minesweeper
 cp ./target/release/mingFiles_File_Explorer /usr/local/bin/mingFiles_File_Explorer
 cp ./target/release/mingFiles_Audio_Player /usr/local/bin/mingFiles_Audio_Player
 cp ./target/release/mingEditing_Malvim /usr/local/bin/mingEditing_Malvim
+cp ./target/release/mingUtils_Draw /usr/local/bin/mingUtils_Draw

local-install

@@ -16,3 +16,4 @@ cp ./target/release/mingGames_Minesweeper ~/.local/bin/mingGames_Minesweeper
 cp ./target/release/mingFiles_File_Explorer ~/.local/bin/mingFiles_File_Explorer
 cp ./target/release/mingFiles_Audio_Player ~/.local/bin/mingFiles_Audio_Player
 cp ./target/release/mingEditing_Malvim ~/.local/bin/mingEditing_Malvim
+cp ./target/release/mingUtils_Draw ~/.local/bin/mingUtils_Draw

ming-wm-lib/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ming-wm-lib"
-version = "0.2.0"
+version = "0.2.1"
 repository = "https://github.com/stjet/ming-wm"
 description = "library for building windows for ming-wm in rust"
 readme = "README.md"

ming-wm-lib/src/serialize.rs

@@ -221,6 +221,7 @@ impl Serializable for DrawInstructions {
       DrawInstructions::Gradient(p, d, c1, c2, u) => format!("Gradient/{}\x1E{}\x1E{}\x1E{}\x1E{}", array_to_string(p), array_to_string(d), array_to_string(c1), array_to_string(c2), u),
       DrawInstructions::Bmp(p, s, b) => format!("Bmp/{}\x1E{}\x1E{}", array_to_string(p), s, b),
       DrawInstructions::Circle(p, u, c) => format!("Circle/{}\x1E{}\x1E{}", array_to_string(p), u, array_to_string(c)),
+      DrawInstructions::Line(s, e, w, c) => format!("Line/{}\x1E{}\x1E{}\x1E{}", array_to_string(s), array_to_string(e), w, array_to_string(c)),
     }
   }
   fn deserialize(serialized: &str) -> Result<Self, ()> {
@@ -402,6 +403,35 @@ impl Serializable for DrawInstructions {
         let c = get_color(arg.unwrap())?;
         Ok(DrawInstructions::Circle(p, u.unwrap(), c))
       },
+      "Line" => {
+        let rest = get_rest_of_split(&mut parts, Some("/"));
+        //(s, e, w, c)
+        let mut args = rest.split("\x1E");
+        let arg = args.next();
+        if arg.is_none() {
+          return Err(());
+        }
+        let s = get_two_array(arg.unwrap())?;
+        let arg = args.next();
+        if arg.is_none() {
+          return Err(());
+        }
+        let e = get_two_array(arg.unwrap())?;
+        let arg = args.next();
+        if arg.is_none() {
+          return Err(());
+        }
+        let w = arg.unwrap().parse();
+        if w.is_err() {
+          return Err(());
+        }
+        let arg = args.next();
+        if arg.is_none() {
+          return Err(());
+        }
+        let c = get_color(arg.unwrap())?;
+        Ok(DrawInstructions::Line(s, e, w.unwrap(), c))
+      },
       _ => Err(()),
     }
   }

ming-wm-lib/src/utils.rs

@@ -7,6 +7,14 @@ pub fn min(one: usize, two: usize) -> usize {
   if one > two { two } else { one } 
 }
 
+pub fn random_u32(seed: u32) -> u32 {
+  let mut seed = seed;
+  seed ^= seed << 13;
+  seed ^= seed >> 17;
+  seed ^= seed >> 5;
+  seed
+}
+
 pub trait Substring {
   fn substring(&self, start: usize, end: usize) -> &str;
   fn remove(&self, index: usize, len: usize) -> String;
@@ -88,18 +96,6 @@ pub fn calc_actual_lines<'a>(lines: impl Iterator<Item = &'a String>, max_chars_
   actual_lines
 }
 
-pub fn calc_new_cursor_pos(cursor_pos: usize, new_length: usize) -> usize {
-  if cursor_pos >= new_length {
-    if new_length == 0 {
-      0
-    } else {
-      new_length - 1
-    }
-  } else {
-    cursor_pos
-  }
-}
-
 pub fn concat_paths(current_path: &str, add_path: &str) -> Result<PathBuf, ()> {
   let mut new_path = PathBuf::from(current_path);
   //if current_path is a file, automatically uses it's parent (a directory)

ming-wm-lib/src/window_manager_types.rs

@@ -14,11 +14,18 @@ pub enum KeyChar {
 
 #[derive(Debug)]
 pub enum DrawInstructions {
+  /// Top left point, dimensions, colour
   Rect(Point, Dimensions, RGBColor),
-  Text(Point, Vec<String>, String, RGBColor, RGBColor, Option<usize>, Option<u8>), //font and text
+  /// Top left point, fonts, text, colour, background colour, horizontal spacing, monospace width
+  Text(Point, Vec<String>, String, RGBColor, RGBColor, Option<usize>, Option<u8>),
+  /// Top left point, dimensions, start colour, end colour, steps
   Gradient(Point, Dimensions, RGBColor, RGBColor, usize),
+  /// Top left point, path to file, reverse
   Bmp(Point, String, bool),
+  /// Centre point, radius, colour
   Circle(Point, usize, RGBColor),
+  /// Start point, end point, line width, line colour
+  Line(Point, Point, usize, RGBColor),
 }
 
 #[derive(Debug, PartialEq)]

src/bin/audio_player.rs

@@ -2,13 +2,13 @@ use std::vec::Vec;
 use std::vec;
 use std::io::BufReader;
 use std::path::PathBuf;
+use std::collections::HashMap;
 use std::fs::{ read_to_string, File };
 use std::time::{ Duration, SystemTime, UNIX_EPOCH };
 use std::thread;
 use std::sync::{ Arc, Mutex };
 
 use rodio::{ Decoder, OutputStream, Sink, Source };
-use rand::{ SeedableRng, prelude::SliceRandom, rngs::SmallRng };
 use id3::TagLike;
 use mp4ameta;
 use metaflac;
@@ -17,7 +17,7 @@ use ming_wm_lib::window_manager_types::{ DrawInstructions, WindowLike, WindowLik
 use ming_wm_lib::messages::{ WindowMessage, WindowMessageResponse, WindowManagerRequest, ShortcutType };
 use ming_wm_lib::framebuffer_types::Dimensions;
 use ming_wm_lib::themes::ThemeInfo;
-use ming_wm_lib::utils::{ concat_paths, get_all_files, path_autocomplete, format_seconds, Substring };
+use ming_wm_lib::utils::{ concat_paths, random_u32, get_all_files, path_autocomplete, format_seconds, Substring };
 use ming_wm_lib::dirs::home;
 use ming_wm_lib::ipc::listen;
 
@@ -253,8 +253,13 @@ impl AudioPlayer {
               } else {
                 get_all_files(PathBuf::from(new_path))
               };
-              let mut rng = SmallRng::seed_from_u64(SystemTime::now().duration_since(UNIX_EPOCH).unwrap().as_secs());
-              queue.shuffle(&mut rng);
+              let mut seed = SystemTime::now().duration_since(UNIX_EPOCH).unwrap().subsec_millis();
+              let mut q_weights: HashMap<PathBuf, u32> = HashMap::new();
+              for q in &queue {
+                seed = random_u32(seed);
+                q_weights.insert(q.to_path_buf(), seed);
+              }
+              queue.sort_by(|a, b| q_weights[a].cmp(&q_weights[b]));
               if self.command.starts_with("p ") {
                 let mut locked_internal = self.internal.lock().unwrap();
                 (*locked_internal).sink.clear();

src/bin/draw.rs

@@ -0,0 +1,252 @@
+use std::vec::Vec;
+use std::vec;
+
+use ming_wm_lib::window_manager_types::{ DrawInstructions, WindowLike, WindowLikeType };
+use ming_wm_lib::messages::{ WindowMessage, WindowMessageResponse };
+use ming_wm_lib::framebuffer_types::{ Dimensions, Point, RGBColor };
+use ming_wm_lib::themes::ThemeInfo;
+use ming_wm_lib::utils::{ hex_to_u8, HEX_CHARS, Substring };
+use ming_wm_lib::ipc::listen;
+
+enum DrawAction {
+  Line(Point, Option<Point>, usize, RGBColor),
+  Rect(Point, Option<Dimensions>, RGBColor),
+  Circle(Point, Option<usize>, RGBColor),
+}
+
+impl DrawAction {
+  fn name(&self) -> String {
+    match self {
+      DrawAction::Line(_, _, _, _) => "Line",
+      DrawAction::Rect(_, _, _) => "Rect",
+      DrawAction::Circle(_, _, _) => "Circle",
+    }.to_string()
+  }
+}
+
+#[derive(Default, PartialEq)]
+enum Mode {
+  #[default]
+  Move,
+  Input,
+}
+
+#[derive(Default)]
+struct Draw {
+  mode: Mode,
+  dimensions: Dimensions,
+  draw_actions: Vec<DrawAction>,
+  current_location: Point,
+  current_input: String,
+  current_color: RGBColor,
+  current_linewidth: usize,
+  current_action: Option<DrawAction>,
+}
+
+impl WindowLike for Draw {
+  fn handle_message(&mut self, message: WindowMessage) -> WindowMessageResponse {
+    match message {
+      WindowMessage::Init(dimensions) => {
+        self.dimensions = dimensions;
+        WindowMessageResponse::JustRedraw
+      },
+      WindowMessage::ChangeDimensions(dimensions) => {
+        self.dimensions = dimensions;
+        WindowMessageResponse::JustRedraw
+      },
+      WindowMessage::KeyPress(key_press) => {
+        if key_press.is_escape() && (self.current_action.is_some() || self.mode != Mode::Move) {
+          self.current_action = None;
+          self.mode = Mode::Move;
+          self.current_input = String::new();
+          WindowMessageResponse::JustRedraw
+        } else if self.mode == Mode::Input {
+          if key_press.is_backspace() && self.current_input.len() > 0 {
+            self.current_input = self.current_input.remove_last();
+            WindowMessageResponse::JustRedraw
+          } else if key_press.is_enter() {
+            //process current input
+            let mut parts = self.current_input.split(" ");
+            match parts.next().unwrap() {
+              "line" | "l" => {
+                self.current_action = Some(DrawAction::Line(self.current_location, None, self.current_linewidth, self.current_color));
+              },
+              "rect" | "r" => {
+                self.current_action = Some(DrawAction::Rect(self.current_location, None, self.current_color));
+              },
+              "circle" | "c" => {
+                self.current_action = Some(DrawAction::Circle(self.current_location, None, self.current_color));
+              },
+              "colour" | "color" | "co" => {
+                //hex to u8
+                if let Some(hex_color) = parts.next() {
+                  if hex_color.len() == 6 && hex_color.chars().all(|c| HEX_CHARS.contains(&c)) {
+                    let mut hex_chars = hex_color.chars();
+                    self.current_color = [hex_to_u8(hex_chars.next().unwrap(), hex_chars.next().unwrap()), hex_to_u8(hex_chars.next().unwrap(), hex_chars.next().unwrap()), hex_to_u8(hex_chars.next().unwrap(), hex_chars.next().unwrap())];
+                  }
+                }
+              },
+              "linewidth" | "lw" => {
+                if let Ok(linewidth) = parts.next().unwrap_or("").parse::<usize>() {
+                  self.current_linewidth = linewidth;
+                }
+              },
+              "undo" | "u" => {
+                self.draw_actions.pop();
+              },
+              "clear" | "cl" => {
+                self.draw_actions = Vec::new();
+              },
+              _ => {},
+            };
+            self.mode = Mode::Move;
+            self.current_input = String::new();
+            WindowMessageResponse::JustRedraw
+          } else if key_press.is_regular() {
+            self.current_input += &key_press.key.to_string();
+            WindowMessageResponse::JustRedraw
+          } else {
+            WindowMessageResponse::DoNothing
+          }
+        } else if key_press.key == 'i' && self.current_action.is_none() {
+          self.mode = Mode::Input;
+          WindowMessageResponse::JustRedraw
+        } else if key_press.is_enter() {
+          if let Some(current_action) = &self.current_action {
+            self.draw_actions.push(match current_action {
+              DrawAction::Line(p, _, u, r) => DrawAction::Line(*p, Some(self.current_location), *u, *r),
+              DrawAction::Rect(p, _, r) => {
+                let d = [
+                  if self.current_location[0] > p[0] {
+                    self.current_location[0] - p[0]
+                  } else {
+                    p[0] - self.current_location[0]
+                  },
+                  if self.current_location[1] > p[1] {
+                    self.current_location[1] - p[1]
+                  } else {
+                    p[1] - self.current_location[1]
+                  }
+                ];
+                //find top left corner
+                let tl = [
+                  if p[0] < self.current_location[0] {
+                    p[0]
+                  } else {
+                    self.current_location[0]
+                  },
+                  if p[1] < self.current_location[1] {
+                    p[1]
+                  } else {
+                    self.current_location[1]
+                  }
+                ];
+                DrawAction::Rect(tl, Some(d), *r)
+              },
+              DrawAction::Circle(p, _, c) => {
+                let r = ((self.current_location[1] as f64 - p[1] as f64).powi(2) + (self.current_location[0] as f64 - p[0] as f64).powi(2)).sqrt();
+                DrawAction::Circle(*p, Some(r.round() as usize), *c)
+              },
+            });
+            self.current_action = None;
+            WindowMessageResponse::JustRedraw
+          } else {
+            WindowMessageResponse::DoNothing
+          }
+        } else if key_press.is_up_arrow() || key_press.key == 'k' {
+          if self.current_location[1] > 0 {
+            self.current_location[1] -= 1;
+            WindowMessageResponse::JustRedraw
+          } else {
+            WindowMessageResponse::DoNothing
+          }
+        } else if key_press.is_down_arrow() || key_press.key == 'j' {
+          if self.current_location[1] + 1 < self.dimensions[1] {
+            self.current_location[1] += 1;
+            WindowMessageResponse::JustRedraw
+          } else {
+            WindowMessageResponse::DoNothing
+          }
+        } else if key_press.is_left_arrow() || key_press.key == 'h' {
+          if self.current_location[0] > 0 {
+            self.current_location[0] -= 1;
+            WindowMessageResponse::JustRedraw
+          } else {
+            WindowMessageResponse::DoNothing
+          }
+        } else if key_press.is_right_arrow() || key_press.key == 'l' {
+          if self.current_location[0] + 1 < self.dimensions[0] {
+            self.current_location[0] += 1;
+            WindowMessageResponse::JustRedraw
+          } else {
+            WindowMessageResponse::DoNothing
+          }
+        } else {
+          WindowMessageResponse::DoNothing
+        }
+      },
+      _ => WindowMessageResponse::DoNothing,
+    }
+  }
+
+  fn draw(&self, theme_info: &ThemeInfo) -> Vec<DrawInstructions> {
+    let mut instructions = Vec::new();
+    //draw previous actions
+    for action in &self.draw_actions {
+      instructions.push(match action {
+        DrawAction::Line(p1, p2, lw, c) => DrawInstructions::Line(*p1, p2.unwrap(), *lw, *c),
+        DrawAction::Rect(p, d, c) => DrawInstructions::Rect(*p, d.unwrap(), *c),
+        DrawAction::Circle(p, r, c) => DrawInstructions::Circle(*p, r.unwrap(), *c),
+      });
+    }
+    //draw cursor (crosshair)
+    let crosshair_min_x = self.current_location[0].checked_sub(6).unwrap_or(0);
+    let crosshair_min_y = self.current_location[1].checked_sub(6).unwrap_or(0);
+    //^going over should be handled by the drawer, probably?
+    instructions.push(DrawInstructions::Line([crosshair_min_x, self.current_location[1]], [self.current_location[0] + 6, self.current_location[1]], 1, self.current_color));
+    instructions.push(DrawInstructions::Line([self.current_location[0], crosshair_min_y], [self.current_location[0], self.current_location[1] + 6], 1, self.current_color));
+    //draw info or current input
+    instructions.push(DrawInstructions::Text([2, self.dimensions[1] - 19], vec!["nimbus-roman".to_string()], if self.current_input == String::new() {
+      if let Some(current_action) = &self.current_action {
+        current_action.name()
+      } else if self.mode == Mode::Move {
+        "'i' to enter input mode".to_string()
+      } else {
+        "Awaiting input".to_string()
+      }
+    } else {
+      self.current_input.clone()
+    }, theme_info.text, theme_info.background, None, None));
+    instructions
+  }
+
+  //properties
+
+  fn title(&self) -> String {
+    "Draw".to_string()
+  }
+
+  fn subtype(&self) -> WindowLikeType {
+    WindowLikeType::Window
+  }
+
+  fn ideal_dimensions(&self, _dimensions: Dimensions) -> Dimensions {
+    [410, 410]
+  }
+
+  fn resizable(&self) -> bool {
+    true
+  }
+}
+
+impl Draw {
+  pub fn new() -> Self {
+    let mut d: Self = Default::default();
+    d.current_linewidth = 1;
+    d
+  }
+}
+
+pub fn main() {
+  listen(Draw::new());
+}

src/bin/malvim.rs

@@ -9,7 +9,7 @@ use ming_wm_lib::messages::{ WindowMessage, WindowMessageResponse, WindowManager
 use ming_wm_lib::themes::ThemeInfo;
 use ming_wm_lib::framebuffer_types::Dimensions;
 use ming_wm_lib::window_manager_types::{ DrawInstructions, WindowLike, WindowLikeType };
-use ming_wm_lib::utils::{ calc_actual_lines, calc_new_cursor_pos, Substring };
+use ming_wm_lib::utils::{ calc_actual_lines, Substring };
 use ming_wm_lib::dirs::home;
 use ming_wm_lib::utils::{ get_rest_of_split, path_autocomplete };
 use ming_wm_lib::ipc::listen;
@@ -103,10 +103,22 @@ impl WindowLike for Malvim {
           self.mode = Mode::Command;
           self.command = Some(String::new());
           changed = false;
-        } else if (key_press.key == 'i' || key_press.key == 'A') && self.mode == Mode::Normal && self.state == State::None && self.files.len() > 0 {
-          if key_press.key == 'A' {
+        } else if (key_press.key == 'i' || key_press.key == 'A' || key_press.key == 'o' || key_press.key == 'O') && self.mode == Mode::Normal && self.state == State::None && self.files.len() > 0 {
           let current_file = &mut self.files[self.current_file_index];
+          if key_press.key == 'A' {
             current_file.cursor_pos = current_file.content[current_file.line_pos].chars().count();
+          } else if key_press.key == 'o' || key_press.key == 'O' {
+            let current_line = &current_file.content[current_file.line_pos];
+            let spaces = Malvim::calc_spaces(self.autoindent, current_line);
+            let n = if key_press.key == 'o' {
+              current_file.line_pos + 1
+            } else {
+              current_file.line_pos
+            };
+            current_file.content.insert(n, " ".repeat(spaces));
+            current_file.line_pos = n;
+            current_file.cursor_pos = spaces;
+            new = true;
           }
           self.mode = Mode::Insert;
           changed = false;
@@ -120,20 +132,7 @@ impl WindowLike for Malvim {
             let left = left.into_iter().map(|c| c.to_string()).collect::<Vec<String>>().join("");
             let right = right.into_iter().map(|c| c.to_string()).collect::<Vec<String>>().join("");
             current_file.content[current_file.line_pos] = left.to_string();
-            let spaces = if self.autoindent {
-              //find out how many spaces the line starts with, copy that to the new line
-              let mut spaces = 0;
-              for c in left.chars() {
-                if c == ' ' {
-                  spaces += 1;
-                } else {
-                  break;
-                }
-              }
-              spaces
-            } else {
-              0
-            };
+            let spaces = Malvim::calc_spaces(self.autoindent, &left);
             current_file.content.insert(current_file.line_pos + 1, " ".repeat(spaces) + &right);
             current_file.line_pos += 1;
             current_file.cursor_pos = spaces;
@@ -168,14 +167,17 @@ impl WindowLike for Malvim {
             self.state = State::None;
           } else if self.state == State::MaybeDelete {
             if key_press.key == 'd' {
+              for _ in 0..self.maybe_num.unwrap_or(1) {
                 current_file.content.remove(current_file.line_pos);
                 if current_file.content.len() == 0 {
                   current_file.content = vec![String::new()];
                 } else if current_file.line_pos == current_file.content.len() {
                   current_file.line_pos = current_file.content.len() - 1;
+                  break;
+                }
               }
               let new_length = current_file.content[current_file.line_pos].chars().count();
-              current_file.cursor_pos = calc_new_cursor_pos(current_file.cursor_pos, new_length);
+              current_file.cursor_pos = Malvim::calc_new_cursor_pos(current_file.cursor_pos, new_length);
             } else if key_press.key == 'w' || key_press.key == '$' {
               let line = &current_file.content[current_file.line_pos];
               let line_len = line.chars().count();
@@ -195,7 +197,7 @@ impl WindowLike for Malvim {
                 };
                 current_file.content[current_file.line_pos] = line.remove(current_file.cursor_pos, offset);
                 let new_length = current_file.content[current_file.line_pos].chars().count();
-                current_file.cursor_pos = calc_new_cursor_pos(current_file.cursor_pos, new_length);
+                current_file.cursor_pos = Malvim::calc_new_cursor_pos(current_file.cursor_pos, new_length);
               }
             }
             self.state = State::None;
@@ -206,7 +208,7 @@ impl WindowLike for Malvim {
                 current_file.line_pos = current_file.content.len() - 1;
               }
               let new_length = current_file.content[current_file.line_pos].chars().count();
-              current_file.cursor_pos = calc_new_cursor_pos(current_file.cursor_pos, new_length);
+              current_file.cursor_pos = Malvim::calc_new_cursor_pos(current_file.cursor_pos, new_length);
             }
             changed = false;
             self.state = State::None;
@@ -262,7 +264,7 @@ impl WindowLike for Malvim {
               current_file.line_pos = current_file.line_pos.checked_sub(self.maybe_num.unwrap_or(1)).unwrap_or(0);
             }
             let new_length = current_file.content[current_file.line_pos].chars().count();
-            current_file.cursor_pos = calc_new_cursor_pos(current_file.cursor_pos, new_length);
+            current_file.cursor_pos = Malvim::calc_new_cursor_pos(current_file.cursor_pos, new_length);
             changed = false;
           } else if key_press.key == 'l' || key_press.is_right_arrow() {
             if current_length > 0 {
@@ -295,7 +297,7 @@ impl WindowLike for Malvim {
           } else if key_press.key == 'G' {
             current_file.line_pos = current_file.content.len() - 1;
             let new_length = current_file.content[current_file.line_pos].chars().count();
-            current_file.cursor_pos = calc_new_cursor_pos(current_file.cursor_pos, new_length);
+            current_file.cursor_pos = Malvim::calc_new_cursor_pos(current_file.cursor_pos, new_length);
             changed = false;
           } else if key_press.key == 'f' {
             self.state = State::Find;
@@ -392,7 +394,7 @@ impl WindowLike for Malvim {
             changed = false;
           }
           //reset maybe_num if not num
-          if !numbered && self.state != State::Maybeg {
+          if !numbered && self.state != State::Maybeg && self.state != State::MaybeDelete {
             self.maybe_num = None;
           }
         } else if self.mode == Mode::Command {
@@ -421,7 +423,7 @@ impl WindowLike for Malvim {
             }
           } else if key_press.is_backspace() {
             if command.len() > 0 {
-              self.command = Some(command[..command.len() - 1].to_string());
+              self.command = Some(command.remove_last());
             }
           } else {
             self.command = Some(command.to_string() + &key_press.key.to_string());
@@ -591,6 +593,34 @@ impl Malvim {
     Default::default()
   }
 
+  fn calc_spaces(autoindent: bool, left: &str) -> usize {
+    if autoindent {
+      let mut spaces = 0;
+      for c in left.chars() {
+        if c == ' ' {
+          spaces += 1;
+        } else {
+          break;
+        }
+      }
+      spaces
+    } else {
+      0
+    }
+  }
+
+  fn calc_new_cursor_pos(cursor_pos: usize, new_length: usize) -> usize {
+    if cursor_pos >= new_length {
+      if new_length == 0 {
+        0
+      } else {
+        new_length - 1
+      }
+    } else {
+      cursor_pos
+    }
+  }
+
   fn calc_top_line_pos(&mut self) {
     if self.files.len() == 0 {
       return;

src/bin/minesweeper.rs

@@ -7,7 +7,7 @@ use ming_wm_lib::window_manager_types::{ DrawInstructions, WindowLike, WindowLik
 use ming_wm_lib::messages::{ WindowMessage, WindowMessageResponse };
 use ming_wm_lib::framebuffer_types::Dimensions;
 use ming_wm_lib::themes::ThemeInfo;
-use ming_wm_lib::utils::{ u8_to_hex, hex_to_u8, HEX_CHARS };
+use ming_wm_lib::utils::{ random_u32, u8_to_hex, hex_to_u8, HEX_CHARS };
 use ming_wm_lib::ipc::listen;
 
 //16x16 with 40 mines
@@ -252,11 +252,7 @@ impl Minesweeper {
   //https://en.wikipedia.org/wiki/Xorshift
   //from 0 to 15
   pub fn random(&mut self) -> usize {
-    let mut x = self.random_seed;
-    x ^= x << 13;
-    x ^= x >> 17;
-    x ^= x << 5;
-    self.random_seed = x;
+    self.random_seed = random_u32(self.random_seed);
     self.random_seed as usize % 16
   }
 

src/bin/wm.rs

@@ -72,7 +72,7 @@ fn init(framebuffer: Framebuffer, framebuffer_info: FramebufferInfo) {
 
   writer.init(framebuffer_info.clone());
 
-  let mut wm: WindowManager = WindowManager::new(writer, framebuffer, dimensions, rotate, grayscale, PASSWORD_HASH);
+  let mut wm: WindowManager = WindowManager::new(writer, framebuffer, dimensions, rotate, grayscale, env!("CARGO_PKG_VERSION").to_string(), PASSWORD_HASH);
 
   let mut stdout = RawStdout::new(stdout());
   stdout.enter_raw_mode().unwrap();
@@ -110,7 +110,6 @@ fn init(framebuffer: Framebuffer, framebuffer_info: FramebufferInfo) {
 
   //read touchscreen presses (hopefully)
   thread::spawn(move || {
-    //spawn evtest, parse it for touch coords
     if touch {
       let mut events = Input::new("/dev/input/by-path/first-touchscreen").unwrap(); //panics in threads don't matter in this case
       let mut x: Option<usize> = None;

wm/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "wm"
-version = "1.0.3"
+version = "1.2.0"
 repository = "https://github.com/stjet/ming-wm"
 license = "GPL-3.0-or-later"
 edition = "2021"

wm/src/essential/about.rs

@@ -13,6 +13,7 @@ use ming_wm_lib::components::paragraph::Paragraph;
 pub struct About {
   dimensions: Dimensions,
   components: Vec<Box<dyn Component<()> + Send>>,
+  version: String,
 }
 
 impl WindowLike for About {
@@ -40,7 +41,7 @@ impl WindowLike for About {
 
   //properties
   fn title(&self) -> String {
-    "About".to_string()
+    "About".to_string() + " - v" + &self.version
   }
 
   fn subtype(&self) -> WindowLikeType {
@@ -53,10 +54,11 @@ impl WindowLike for About {
 }
 
 impl About {
-  pub fn new() -> Self {
+  pub fn new(version: String) -> Self {
     Self {
       dimensions: [0, 0],
       components: Vec::new(),
+      version,
     }
   }
 }

wm/src/essential/lock_screen.rs

@@ -1,5 +1,6 @@
 use std::vec;
 use std::vec::Vec;
+use std::time::{ SystemTime, UNIX_EPOCH }; //for psuedo-randomness
 
 use ming_wm_lib::framebuffer_types::Dimensions;
 use ming_wm_lib::themes::ThemeInfo;
@@ -7,12 +8,11 @@ use ming_wm_lib::messages::{ WindowMessage, WindowMessageResponse, WindowManager
 use ming_wm_lib::window_manager_types::{ DrawInstructions, WindowLike, WindowLikeType };
 use bitcoin_hashes::Sha512;
 
-//const PASSWORD_HASH: [u8; 64] = [220, 88, 183, 188, 240, 27, 107, 181, 58, 191, 198, 170, 114, 38, 7, 148, 6, 179, 75, 128, 231, 171, 172, 220, 85, 38, 36, 113, 116, 146, 70, 197, 163, 179, 158, 192, 130, 53, 247, 48, 47, 209, 95, 96, 179, 211, 4, 122, 254, 127, 21, 165, 139, 199, 151, 226, 216, 176, 123, 41, 194, 221, 58, 69];
-
 pub struct LockScreen {
   dimensions: Dimensions,
   input_password: String,
   password_hash: [u8; 64],
+  lines: [String; 3],
 }
 
 impl WindowLike for LockScreen {
@@ -51,9 +51,11 @@ impl WindowLike for LockScreen {
   fn draw(&self, _theme_info: &ThemeInfo) -> Vec<DrawInstructions> {
     vec![
       DrawInstructions::Rect([0, 0], self.dimensions, [0, 0, 0]),
-      DrawInstructions::Text([4, 4], vec!["nimbus-roman".to_string()], "The bulldozer outside the kitchen window was quite a big one.".to_string(), [255, 255, 255], [0, 0, 0], None, None),
-      DrawInstructions::Text([4, 4 + 16], vec!["nimbus-roman".to_string()], "\"Yellow,\" he thought, and stomped off back to his bedroom to get dressed.".to_string(), [255, 255, 255], [0, 0, 0], None, None),
-      DrawInstructions::Text([4, 4 + 16 * 2], vec!["nimbus-roman".to_string()], "He stared at it.".to_string(), [255, 255, 255], [0, 0, 0], None, None),
+      DrawInstructions::Text([4, 4], vec!["nimbus-roman".to_string()], self.lines[0].clone(), [255, 255, 255], [0, 0, 0], None, None),
+      //He is my brother.
+      DrawInstructions::Text([4, 4 + 16], vec!["nimbus-roman".to_string()], self.lines[1].clone(), [255, 255, 255], [0, 0, 0], None, None),
+      //But I must kill him and keep strong to do it.
+      DrawInstructions::Text([4, 4 + 16 * 2], vec!["nimbus-roman".to_string()], self.lines[2].clone(), [255, 255, 255], [0, 0, 0], None, None),
       DrawInstructions::Text([4, 4 + 16 * 3], vec!["nimbus-roman".to_string()], "Password: ".to_string(), [255, 255, 255], [0, 0, 0], None, None),
       DrawInstructions::Text([80, 4 + 16 * 3], vec!["nimbus-roman".to_string()], "*".repeat(self.input_password.len()), [255, 255, 255], [0, 0, 0], None, None),
     ]
@@ -71,10 +73,24 @@ impl WindowLike for LockScreen {
 
 impl LockScreen {
   pub fn new(password_hash: [u8; 64]) -> Self {
+    let possible_lines = [
+      [
+        "\"He took about forty pounds,\" the old man said aloud.".to_string(),
+        "He took my harpoon too and all the rope, he thought, and now my fish bleeds again and there will be others.".to_string(),
+        "He did not like to look at the fish anymore since it had been mutilated.".to_string()
+      ],
+      [
+        "The bulldozer outside the kitchen window was quite a big one.".to_string(),
+        "\"Yellow,\" he thought, and stomped off back to his bedroom to get dressed.".to_string(),
+        "He stared at it.".to_string()
+      ],
+    ];
+    let rand_index = SystemTime::now().duration_since(UNIX_EPOCH).unwrap().as_secs() as usize % possible_lines.len();
     Self {
       dimensions: [0, 0],
       input_password: String::new(),
       password_hash,
+      lines: possible_lines[rand_index].clone(),
     }
   }
 }

wm/src/framebuffer.rs

@@ -108,6 +108,7 @@ impl FramebufferWriter {
       .copy_from_slice(&color[..]);
   }
 
+  //straight horizontal line
   fn _draw_line(&mut self, start_pos: usize, bytes: &[u8]) {
     self.buffer[start_pos..(start_pos + bytes.len())]
       .copy_from_slice(bytes);
@@ -147,8 +148,10 @@ impl FramebufferWriter {
 
   pub fn draw_pixel(&mut self, point: Point, color: RGBColor) {
     let start_pos = (point[1] * self.info.stride + point[0]) * self.info.bytes_per_pixel;
+    if self.info.byte_len > start_pos {
       self._draw_pixel(start_pos, color);
     }
+  }
   
   //shapes
 
@@ -244,6 +247,34 @@ impl FramebufferWriter {
     }
   }
 
+  //line
+
+  pub fn draw_line(&mut self, start: Point, end: Point, width: usize, color: RGBColor) {
+    //leftmost point
+    let lm;
+    let rm;
+    if start[0] < end[0] || (start[0] == end[0] && end[1] > start[1]) {
+      lm = start;
+      rm = end;
+    } else {
+      lm = end;
+      rm = start;
+    };
+    let dx = (rm[0] - lm[0]) as f64; //will not be negative
+    let dy = rm[1] as f64 - lm[1] as f64; //surely no point will be big enough to lose data here?
+    let use_x = dy.abs() < dx;
+    //slope
+    let m = if use_x { dy / dx } else { dx / dy };
+    for ci in 0..if use_x { dx as usize } else { dy.abs() as usize } {
+      let i = if !use_x && dy < 0.0 { -(ci as f64) } else { ci as f64 };
+      let ix = if use_x { i } else { (m * i).round() };
+      let iy = if use_x { (m * i).round() } else { i };
+      for j in 0..width {
+        self.draw_pixel([(lm[0] as f64 + ix) as usize + j, (lm[1] as f64 + iy) as usize], color);
+      }
+    }
+  }
+
   //bmps
 
   //reverse is workaround for when my bmp lib returns rgba instead of bgra

wm/src/fs.rs

@@ -12,9 +12,9 @@ fn get_font_char(dir: &str, c: char) -> Option<(char, Vec<Vec<u8>>, u8)> {
     let mut contents = String::new();
     file.read_to_string(&mut contents).unwrap();
     let lines: Vec<&str> = contents.split("\n").collect();
-    for l in 1..lines.len() {
+    for ln in 1..lines.len() {
       //.unwrap_or(0) is important because zeroes are just empty
-      ch.push(lines[l].split(",").map(|n| n.parse().unwrap_or(0)).collect());
+      ch.push(lines[ln].replace(":", ",,,,").replace(";", ",,,").replace(".", ",,").split(",").map(|n| n.parse().unwrap_or(0)).collect());
     }
     return Some((c, ch, lines[0].parse().unwrap()));
   }

wm/src/window_manager.rs

@@ -51,6 +51,7 @@ impl fmt::Debug for WindowLikeInfo {
   }
 }
 
+
 pub struct WindowManager {
   writer: RefCell<FramebufferWriter>,
   rotate: bool,
@@ -65,13 +66,14 @@ pub struct WindowManager {
   current_workspace: u8,
   framebuffer: Framebuffer,
   clipboard: Option<String>,
+  version: String,
   password_hash: [u8; 64],
 }
 
 //1 is up, 2 is down
 
 impl WindowManager {
-  pub fn new(writer: FramebufferWriter, framebuffer: Framebuffer, dimensions: Dimensions, rotate: bool, grayscale: bool, password_hash: [u8; 64]) -> Self {
+  pub fn new(writer: FramebufferWriter, framebuffer: Framebuffer, dimensions: Dimensions, rotate: bool, grayscale: bool, version: String, password_hash: [u8; 64]) -> Self {
     //println!("bg: {}x{}", dimensions[0], dimensions[1] - TASKBAR_HEIGHT - INDICATOR_HEIGHT);
     let mut wm = WindowManager {
       writer: RefCell::new(writer),
@@ -87,6 +89,7 @@ impl WindowManager {
       current_workspace: 0,
       framebuffer,
       clipboard: None,
+      version,
       password_hash,
     };
     wm.lock();
@@ -594,7 +597,7 @@ impl WindowManager {
         }
         let w: Option<WindowBox> = match w.as_str() {
           "StartMenu" => Some(Box::new(StartMenu::new())),
-          "About" => Some(Box::new(About::new())),
+          "About" => Some(Box::new(About::new(self.version.clone()))),
           "Help" => Some(Box::new(Help::new())),
           _ => Some(Box::new(ProxyWindowLike::new(&w))),
         };
@@ -648,6 +651,13 @@ impl WindowManager {
     [top_left[0], top_left[1] + if is_window { WINDOW_TOP_HEIGHT } else { 0 }]
   }
 
+  fn prevent_overflow_dimensions(dimensions: Dimensions, window_dimensions: Dimensions, top_left: Point) -> Dimensions {
+    [
+      min(dimensions[0], window_dimensions[0] - top_left[0]),
+      min(dimensions[1], window_dimensions[1] - top_left[1]),
+    ]
+  }
+
   //another issue with a huge vector of draw instructions; it takes up heap memory
   pub fn draw(&mut self, maybe_redraw_ids: Option<Vec<usize>>, use_saved_buffer: bool) {
     let theme_info = get_theme_info(&self.theme).unwrap();
@@ -694,6 +704,7 @@ impl WindowManager {
             DrawInstructions::Text(top_left, fonts, text, color, bg_color, horiz_spacing, mono_width) => DrawInstructions::Text(WindowManager::get_true_top_left(top_left, is_window), fonts.clone(), text.clone(), *color, *bg_color, *horiz_spacing, *mono_width),
             DrawInstructions::Bmp(top_left, path, reverse) => DrawInstructions::Bmp(WindowManager::get_true_top_left(top_left, is_window), path.to_string(), *reverse),
             DrawInstructions::Gradient(top_left, dimensions, start_color, end_color, steps) => DrawInstructions::Gradient(WindowManager::get_true_top_left(top_left, is_window), *dimensions, *start_color, *end_color, *steps),
+            DrawInstructions::Line(start, end, width, color) => DrawInstructions::Line(WindowManager::get_true_top_left(start, is_window), WindowManager::get_true_top_left(end, is_window), *width, *color),
           }
         }).collect();
         //draw window background
@@ -729,10 +740,7 @@ impl WindowManager {
         match instruction {
           DrawInstructions::Rect(top_left, dimensions, color) => {
             //try and prevent overflows out of the window
-            let true_dimensions = [
-              min(dimensions[0], window_dimensions[0] - top_left[0]),
-              min(dimensions[1], window_dimensions[1] - top_left[1]),
-            ];
+            let true_dimensions = WindowManager::prevent_overflow_dimensions(dimensions, window_dimensions, top_left);
             window_writer.draw_rect(top_left, true_dimensions, color);
           },
           DrawInstructions::Circle(centre, radius, color) => {
@@ -746,7 +754,11 @@ impl WindowManager {
             window_writer.draw_bmp(top_left, path, reverse);
           },
           DrawInstructions::Gradient(top_left, dimensions, start_color, end_color, steps) => {
-            window_writer.draw_gradient(top_left, dimensions, start_color, end_color, steps);
+            let true_dimensions = WindowManager::prevent_overflow_dimensions(dimensions, window_dimensions, top_left);
+            window_writer.draw_gradient(top_left, true_dimensions, start_color, end_color, steps);
+          },
+          DrawInstructions::Line(start, end, width, color) => {
+            window_writer.draw_line(start, end, width, color);
           },
         }
       }