icons added

README.md

@@ -16,6 +16,7 @@
 
 Process Interactive Kill is a command line tool that helps to find and kill process.
 It works like pkill command but search is interactive.
+![Example pik](docs/pik.png)
 
 This tool is still under development
 
@@ -70,6 +71,7 @@ sudo zypper install pik
 On **Gentoo**
 
 It is available via `lamdness` overlay
+
 ```sh
 sudo eselect repository enable lamdness
 sudo emaint -r lamdness sync
@@ -99,9 +101,19 @@ cargo binstall pik
 
 ### Application configuration
 
-You may set your preferences in `pik.toml` file located in `~/.config/pik` directory.
+You may set your preferences in `config.toml` file located in `~/.config/pik` directory.
 All options are optional, if skipped default values will be used.
-Example configuration with default settings can be found at [example config](example_config.toml)
+
+You can find default values below
+
+``` toml
+# Size of the viewport
+screen_size = { height = 20 } # run pik in 20 lines of the terminal
+# screen_size = "fullscreen" # run pik in fullscreen
+
+# Icons require nerd fonts v3
+use_icons = false
+```
 
 ### Key maps
 

src/config.rs

@@ -24,6 +24,8 @@ use serde::Deserialize;
 pub struct AppConfig {
     #[serde(default)]
     pub screen_size: ScreenSize,
+    #[serde(default)]
+    pub use_icons: bool,
 }
 
 #[derive(Debug, Eq, PartialEq, Deserialize, Clone, Copy)]
@@ -50,20 +52,30 @@ mod tests {
     fn should_deserialize_empty_configuration() {
         let default_settings = toml::from_str("");
         assert_eq!(default_settings, Ok(AppConfig::default()));
+        // ensure what actual defaults are
+        assert_eq!(
+            default_settings,
+            Ok(AppConfig {
+                screen_size: ScreenSize::Height(DEFAULT_SCREEN_SIZE),
+                use_icons: false
+            })
+        );
     }
 
     #[test]
     fn should_allow_to_override_defaults() {
         let default_settings: AppConfig = toml::from_str(
             r#"
             screen_size = "fullscreen"
+            use_icons = true
             "#,
         )
         .unwrap();
         assert_eq!(
             default_settings,
             AppConfig {
-                screen_size: ScreenSize::Fullscreen
+                screen_size: ScreenSize::Fullscreen,
+                use_icons: true
             }
         );
     }

src/settings.rs

@@ -10,6 +10,7 @@ use crate::{
 pub struct AppSettings {
     pub viewport: Viewport,
     pub filter_opions: FilterOptions,
+    pub use_icons: bool,
 }
 
 impl AppSettings {
@@ -20,6 +21,7 @@ impl AppSettings {
                 ignore_threads: !cli_args.include_threads_processes,
                 include_all_processes: cli_args.include_other_users_processes,
             },
+            use_icons: config.use_icons,
         }
     }
 }
@@ -96,6 +98,7 @@ mod tests {
             settings,
             AppSettings {
                 viewport: Viewport::Inline(25),
+                use_icons: false,
                 filter_opions: FilterOptions {
                     ignore_threads: false,
                     include_all_processes: true
@@ -108,6 +111,7 @@ mod tests {
     fn should_prefer_cli_args_screen_size() {
         let config = AppConfig {
             screen_size: ScreenSize::Height(40),
+            ..Default::default()
         };
         let cli_args = CliArgs {
             screen_size: Some(ScreenSizeOptions {

src/tui.rs

@@ -30,7 +30,7 @@ impl App {
             process_manager: ProcessManager::new()?,
             search_results: ProcessSearchResults::empty(),
             filter_options: app_settings.filter_opions,
-            tui: Tui::new(search_criteria),
+            tui: Tui::new(search_criteria, app_settings.use_icons),
         };
         app.search_for_processess();
         Ok(app)

src/tui/rendering.rs

@@ -17,7 +17,7 @@ use crate::processes::{MatchedBy, Process, ProcessSearchResults, ResultItem};
 
 use super::highlight::highlight_text;
 
-pub struct Theme {
+struct Theme {
     row_fg: Color,
     selected_style_fg: Color,
     normal_row_color: Color,
@@ -28,7 +28,7 @@ pub struct Theme {
 }
 
 impl Theme {
-    pub fn new() -> Self {
+    fn new() -> Self {
         Self {
             row_fg: tailwind::SLATE.c200,
             selected_style_fg: tailwind::BLUE.c400,
@@ -43,6 +43,7 @@ impl Theme {
 
 pub struct Tui {
     theme: Theme,
+    use_icons: bool,
     process_table: TableState,
     process_table_scroll_state: ScrollbarState,
     process_table_number_of_items: usize,
@@ -58,7 +59,18 @@ const MAX_PATH_LEN: usize = 38;
 const MAX_ARGS_LEN: usize = 35;
 const MAX_PORTS_LEN: usize = 20;
 
-const TABLE_HEADERS: [&str; 8] = [
+const TABLE_HEADERS_ICONS: [&str; 8] = [
+    "USER 󰋦",
+    "PID ",
+    "PARENT 󱖁",
+    "TIME ",
+    "CMD 󱃸",
+    "PATH ",
+    "ARGS 󱃼",
+    "PORTS ",
+];
+
+const TABLE_HEADERS_PLAIN: [&str; 8] = [
     "USER", "PID", "PARENT", "RUN TIME", "CMD", "PATH", "ARGS", "PORTS",
 ];
 
@@ -74,13 +86,14 @@ const TABLE_WIDTHS: [Constraint; 8] = [
 ];
 
 impl Tui {
-    pub fn new(search_text: String) -> Self {
+    pub fn new(search_text: String, use_icons: bool) -> Self {
         let mut search_area = TextArea::from(search_text.lines());
         search_area.move_cursor(tui_textarea::CursorMove::End);
         Self {
             process_table: TableState::default(),
             process_table_scroll_state: ScrollbarState::new(0),
             theme: Theme::new(),
+            use_icons,
             process_table_number_of_items: 0,
             process_details_scroll_offset: 0,
             process_details_number_of_lines: 0,
@@ -247,8 +260,13 @@ impl Tui {
             ])
             .style(Style::new().fg(self.theme.row_fg).bg(color))
         });
+        let headers = if self.use_icons {
+            TABLE_HEADERS_ICONS
+        } else {
+            TABLE_HEADERS_PLAIN
+        };
         let table = Table::new(rows, TABLE_WIDTHS)
-            .header(Row::new(TABLE_HEADERS))
+            .header(Row::new(headers))
             .block(
                 Block::default()
                     .title_top(