added save state

Cargo.lock

@@ -578,6 +578,8 @@ dependencies = [
  "env_logger",
  "image",
  "rfd",
+ "serde",
+ "serde_json",
 ]
 
 [[package]]
@@ -1648,6 +1650,12 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "itoa"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1a46d1a171d865aa5f83f92695765caa047a9b4cbae2cbf37dbd613a793fd4c"
+
 [[package]]
 name = "jni"
 version = "0.21.1"
@@ -2367,6 +2375,12 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "ryu"
+version = "1.0.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f98d2aa92eebf49b69786be48e4477826b256916e84a57ff2a4f21923b48eb4c"
+
 [[package]]
 name = "same-file"
 version = "1.0.6"
@@ -2421,6 +2435,17 @@ dependencies = [
  "syn 2.0.48",
 ]
 
+[[package]]
+name = "serde_json"
+version = "1.0.111"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "176e46fa42316f18edd598015a5166857fc835ec732f5215eac6b7bdbf0a84f4"
+dependencies = [
+ "itoa",
+ "ryu",
+ "serde",
+]
+
 [[package]]
 name = "serde_repr"
 version = "0.1.18"

Cargo.toml

@@ -12,7 +12,9 @@ env_logger = { version = "0.10.1", default-features = false, features = [
     "humantime",
 ] }
 rfd = "0.12.1"
-egui_extras = { version = "0.25.0" }
-egui_code_editor = "0.2.3"
+egui_extras = "0.25.0"
+egui_code_editor = {version = "0.2.3"}
 image = "0.24.8"
-#syntect = "4.6"
+serde = { version = "1.0.195", features = ["derive"] }
+serde_json = "1.0.111"
+

calcifer_save.json

@@ -0,0 +1 @@
+{"tabs":["/home/penwing/Documents/projects/rust/calcifer/src/main.rs"],"theme":6}

src/main.rs

@@ -8,6 +8,7 @@ use std::{path::Path, path::PathBuf, fs, io, env, cmp::max, cmp::min, sync::Arc}
 const TERMINAL_HEIGHT : f32 = 200.0;
 const RED : egui::Color32 = egui::Color32::from_rgb(235, 108, 99);
 const HISTORY_LENGTH : usize = 2;
+const SAVE_PATH : &str = "calcifer_save.json";
 
 
 fn main() -> Result<(), eframe::Error> {
@@ -22,10 +23,22 @@ fn main() -> Result<(), eframe::Error> {
 			.with_icon(Arc::new(icon_data)),
         ..Default::default()
     };
+    
+    let app_state: tools::AppState;
+    // Attempt to load previous state
+    if Path::new(SAVE_PATH).exists() {
+        app_state = tools::load_state(SAVE_PATH).expect("Failed to load the save");
+    } else {
+        app_state = tools::AppState {
+            tabs: vec![],
+            theme: 0,
+        };
+    }
+
     eframe::run_native(
         "Calcifer",
         options,
-        Box::new(|_cc| Box::<Calcifer>::default()),
+        Box::new(move |_cc| Box::from(Calcifer::from_app_state(app_state))),
     )
 }
 
@@ -84,6 +97,10 @@ impl eframe::App for Calcifer {
         self.draw_tab_panel(ctx);
         self.draw_content_panel(ctx);
 	}
+	
+	fn on_exit(&mut self, _gl : std::option::Option<&eframe::glow::Context>) {
+		self.save_state();
+	}
 }
 
 
@@ -99,13 +116,10 @@ impl Calcifer {
 						.show_ui(ui, |ui| {
 							ui.style_mut().wrap = Some(false);
 							ui.set_min_width(60.0);
-							ui.selectable_value(&mut self.theme, ColorTheme::SONOKAI, "Sonokai");
-							ui.selectable_value(&mut self.theme, ColorTheme::AYU_DARK, "Ayu Dark");
-							ui.selectable_value(&mut self.theme, ColorTheme::AYU_MIRAGE, "Ayu Mirage");
-							ui.selectable_value(&mut self.theme, ColorTheme::GITHUB_DARK, "Github Dark");
-							ui.selectable_value(&mut self.theme, ColorTheme::GRUVBOX, "Gruvbox");
-							ui.selectable_value(&mut self.theme, tools::themes::CustomColorTheme::fire(), "Fire");
-							ui.selectable_value(&mut self.theme, tools::themes::CustomColorTheme::ash(), "Ash");
+							for i in 0..tools::themes::CustomColorTheme::max() {
+								let theme = tools::themes::CustomColorTheme::from_index(i);
+								ui.selectable_value(&mut self.theme, theme, theme.name);
+							}
 						});
 				});
 			});
@@ -329,5 +343,40 @@ impl Calcifer {
 		current_tab.code = current_tab.history[current_tab.history.len() - 2].clone();
 		current_tab.history.pop();
 	}
+	
+	pub fn from_app_state(app_state: tools::AppState) -> Self {
+		let mut new = Self::default();
+        new.theme = tools::themes::CustomColorTheme::from_index(app_state.theme);
+        
+        new.tabs = vec![];
+        
+        for path in app_state.tabs {
+			if path.file_name().expect("Could not get Tab Name").to_string_lossy().to_string() != "untitled" {
+				new.open_file(&path);
+			}
+		}
+		
+		if new.tabs == vec![] {
+			new.new_tab();
+		}
+		
+        new
+    }
+    
+    fn save_state(&self) {
+		let state_theme = tools::themes::CustomColorTheme::to_index(self.theme);
+		
+		let mut state_tabs = vec![];
+		
+		for tab in &self.tabs {
+			state_tabs.push(tab.path.clone());
+		}
+		let app_state = tools::AppState {
+            tabs: state_tabs,
+            theme: state_theme,
+        };
+		
+		let _ = tools::save_state(&app_state, SAVE_PATH);
+	}
 }
 

src/tools/mod.rs

@@ -1,9 +1,7 @@
-//use eframe::egui;
-//use std::io;
-use std::{process::Command, cmp::Ordering, env, path::PathBuf};
+use std::{process::Command, cmp::Ordering, env, path::PathBuf, fs::read_to_string, fs::write};
 use egui_code_editor::Syntax;
 use eframe::egui::IconData;
-//use std::fs;
+use serde::{Serialize, Deserialize};
 
 pub mod themes;
 
@@ -51,7 +49,7 @@ impl TabNumber {
 	}
 }
 
-#[derive(Clone)]
+#[derive(Clone, PartialEq)]
 pub struct Tab {
 	pub path : PathBuf,
 	pub code : String,
@@ -100,6 +98,31 @@ impl Default for CommandEntry {
 }
 
 
+#[derive(Serialize, Deserialize)]
+pub struct AppState {
+    pub tabs: Vec<PathBuf>,
+    pub theme: usize,
+}
+
+
+pub fn save_state(state: &AppState, file_path: &str) -> Result<(), std::io::Error> {
+    let serialized_state = serde_json::to_string(state)?;
+
+    write(file_path, serialized_state)?;
+
+    Ok(())
+}
+
+
+pub fn load_state(file_path: &str) -> Result<AppState, std::io::Error> {
+    let serialized_state = read_to_string(file_path)?;
+
+    let state: AppState = serde_json::from_str(&serialized_state)?;
+
+    Ok(state)
+}
+
+
 pub fn loaded() {
 	println!("Tools loaded");
 }

src/tools/themes.rs

@@ -44,4 +44,34 @@ impl CustomColorTheme {
 
         theme
     }
+    
+    pub fn from_index(n : usize) -> ColorTheme {
+		match n {
+			0 => ColorTheme::SONOKAI,
+			1 => ColorTheme::GRUVBOX,
+			2 => ColorTheme::GITHUB_DARK,
+			3 => ColorTheme::AYU_MIRAGE,
+			4 => ColorTheme::AYU_DARK,
+			5 => CustomColorTheme::ash(),
+			6 => CustomColorTheme::fire(),
+			_ => CustomColorTheme::ash(),
+		}
+	}
+	
+	pub fn max() -> usize {
+		7
+	}
+	
+	pub fn to_index(theme : ColorTheme) -> usize {
+		match theme.name {
+			"Sonokai" => 0,
+			"Gruvbox" => 1,
+			"Github Dark" => 2,
+			"Ayu Mirage" => 3,
+			"Ayu Dark" => 4,
+			"Ash" => 5,
+			"Fire" => 6,
+			_ => 0,
+		}
+	}
 }