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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,142 @@ | ||
| use crate::DirectoryEntry; | ||
| use chrono::{DateTime, Local}; | ||
| use std::time::SystemTime; | ||
|
|
||
| /// Calculates the width of a single char. | ||
| fn calc_char_width(ui: &egui::Ui, char: char) -> f32 { | ||
| ui.fonts(|f| f.glyph_width(&egui::TextStyle::Body.resolve(ui.style()), char)) | ||
| } | ||
|
|
||
| /// Calculates the width of the specified text using the current font configuration. | ||
| /// Does not take new lines or text breaks into account! | ||
| pub fn calc_text_width(ui: &egui::Ui, text: &str) -> f32 { | ||
| let mut width = 0.0; | ||
|
|
||
| for char in text.chars() { | ||
| width += calc_char_width(ui, char); | ||
| } | ||
|
|
||
| width | ||
| } | ||
|
|
||
| /// Truncates a date to a specified maximum length `max_length` | ||
| /// Returns the truncated date as a string | ||
| pub fn truncate_date(ui: &egui::Ui, date: SystemTime, max_length: f32) -> String { | ||
| let date: DateTime<Local> = date.into(); | ||
| let today = Local::now().date_naive(); // NaiveDate for today | ||
| let yesterday = today.pred_opt().map_or(today, |day| day); // NaiveDate for yesterday | ||
|
|
||
| let text = if date.date_naive() == today { | ||
| date.format("Today, %H:%M").to_string() | ||
| } else if date.date_naive() == yesterday { | ||
| date.format("Yesterday, %H:%M").to_string() | ||
| } else { | ||
| date.format("%d.%m.%Y, %H:%M").to_string() | ||
| }; | ||
|
|
||
| let text_width = calc_text_width(ui, &text); | ||
|
|
||
| if max_length <= text_width { | ||
| if date.date_naive() == today { | ||
| date.format("%H:%M").to_string() | ||
| } else if date.date_naive() == yesterday { | ||
| "Yesterday".to_string() | ||
| } else { | ||
| date.format("%d.%m.%y").to_string() | ||
| } | ||
| } else { | ||
| text | ||
| } | ||
| } | ||
|
|
||
| /// Truncates a date to a specified maximum length `max_length` | ||
| /// Returns the truncated filename as a string | ||
| pub fn truncate_filename(ui: &egui::Ui, item: &DirectoryEntry, max_length: f32) -> String { | ||
| const TRUNCATE_STR: &str = "..."; | ||
|
|
||
| let path = item.as_path(); | ||
|
|
||
| let file_stem = if path.is_file() { | ||
| path.file_stem().and_then(|f| f.to_str()).unwrap_or("") | ||
| } else { | ||
| item.file_name() | ||
| }; | ||
|
|
||
| let extension = if path.is_file() { | ||
| path.extension().map_or(String::new(), |ext| { | ||
| format!(".{}", ext.to_str().unwrap_or("")) | ||
| }) | ||
| } else { | ||
| String::new() | ||
| }; | ||
|
|
||
| let extension_width = calc_text_width(ui, &extension); | ||
| let reserved = extension_width + calc_text_width(ui, TRUNCATE_STR); | ||
|
|
||
| if max_length <= reserved { | ||
| return format!("{TRUNCATE_STR}{extension}"); | ||
| } | ||
|
|
||
| let mut width = reserved; | ||
| let mut front = String::new(); | ||
| let mut back = String::new(); | ||
|
|
||
| for (i, char) in file_stem.chars().enumerate() { | ||
| let w = calc_char_width(ui, char); | ||
|
|
||
| if width + w > max_length { | ||
| break; | ||
| } | ||
|
|
||
| front.push(char); | ||
| width += w; | ||
|
|
||
| let back_index = file_stem.len() - i - 1; | ||
|
|
||
| if back_index <= i { | ||
| break; | ||
| } | ||
|
|
||
| if let Some(char) = file_stem.chars().nth(back_index) { | ||
| let w = calc_char_width(ui, char); | ||
|
|
||
| if width + w > max_length { | ||
| break; | ||
| } | ||
|
|
||
| back.push(char); | ||
| width += w; | ||
| } | ||
| } | ||
|
|
||
| format!( | ||
| "{front}{TRUNCATE_STR}{}{extension}", | ||
| back.chars().rev().collect::<String>() | ||
| ) | ||
| } | ||
|
|
||
| /// Formats a file size (in bytes) into a human-readable string (e.g., KB, MB). | ||
| /// | ||
| /// # Arguments | ||
| /// - `bytes`: The file size in bytes. | ||
| /// | ||
| /// # Returns | ||
| /// A string representing the file size in an appropriate unit. | ||
| pub fn format_bytes(bytes: u64) -> String { | ||
| const KB: u64 = 1024; | ||
| const MB: u64 = KB * 1024; | ||
| const GB: u64 = MB * 1024; | ||
| const TB: u64 = GB * 1024; | ||
|
|
||
| if bytes >= TB { | ||
| format!("{:.2} TB", bytes as f64 / TB as f64) | ||
| } else if bytes >= GB { | ||
| format!("{:.2} GB", bytes as f64 / GB as f64) | ||
| } else if bytes >= MB { | ||
| format!("{:.2} MB", bytes as f64 / MB as f64) | ||
| } else if bytes >= KB { | ||
| format!("{:.2} KB", bytes as f64 / KB as f64) | ||
| } else { | ||
| format!("{bytes} B") | ||
| } | ||
| } |