merge commit

dsa_editor/src/themes/mod.rs

@@ -0,0 +1,147 @@
+#![allow(dead_code)]
+pub mod theme;
+
+use super::syntax::TokenType;
+#[cfg(feature = "egui")]
+use egui::Color32;
+
+#[cfg(feature = "egui")]
+pub const ERROR_COLOR: Color32 = Color32::from_rgb(255, 0, 255);
+
+/// Array of default themes.
+pub const DEFAULT_THEMES: [ColorTheme; 1] = [ColorTheme::THEME];
+
+#[cfg(feature = "egui")]
+fn color_from_hex(hex: &str) -> Option<Color32> {
+    if hex == "none" {
+        return Some(Color32::from_rgba_premultiplied(255, 0, 255, 0));
+    }
+    let rgb = (1..hex.len())
+        .step_by(2)
+        .filter_map(|i| u8::from_str_radix(&hex[i..i + 2], 16).ok())
+        .collect::<Vec<u8>>();
+    let color = Color32::from_rgb(*rgb.first()?, *rgb.get(1)?, *rgb.get(2)?);
+    Some(color)
+}
+
+#[derive(Hash, Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
+/// Colors in hexadecimal notation as used in HTML and CSS.
+pub struct ColorTheme {
+    pub name: &'static str,
+    pub dark: bool,
+    pub bg: &'static str,
+    pub cursor: &'static str,
+    pub selection: &'static str,
+    pub comments: &'static str,
+    pub functions: &'static str,
+    pub keywords: &'static str,
+    pub literals: &'static str,
+    pub numerics: &'static str,
+    pub punctuation: &'static str,
+    pub strs: &'static str,
+    pub types: &'static str,
+    pub special: &'static str,
+}
+
+impl Default for ColorTheme {
+    fn default() -> Self {
+        ColorTheme::THEME
+    }
+}
+impl ColorTheme {
+    pub fn name(&self) -> &str {
+        self.name
+    }
+
+    pub fn is_dark(&self) -> bool {
+        self.dark
+    }
+
+    #[cfg(feature = "egui")]
+    pub fn bg(&self) -> Color32 {
+        color_from_hex(self.bg).unwrap_or(ERROR_COLOR)
+    }
+
+    #[cfg(feature = "egui")]
+    pub fn cursor(&self) -> Color32 {
+        color_from_hex(self.cursor).unwrap_or(ERROR_COLOR)
+    }
+
+    #[cfg(feature = "egui")]
+    pub fn selection(&self) -> Color32 {
+        color_from_hex(self.selection).unwrap_or(ERROR_COLOR)
+    }
+
+    #[cfg(feature = "egui")]
+    pub fn modify_style(&self, ui: &mut egui::Ui, fontsize: f32) {
+        let style = ui.style_mut();
+        style.visuals.widgets.noninteractive.bg_fill = self.bg();
+        style.visuals.window_fill = self.bg();
+        style.visuals.selection.stroke.color = self.cursor();
+        style.visuals.selection.bg_fill = self.selection();
+        style.visuals.extreme_bg_color = self.bg();
+        style.override_font_id = Some(egui::FontId::monospace(fontsize));
+        style.visuals.text_cursor.stroke.width = fontsize * 0.1;
+    }
+
+    pub const fn type_color_str(&self, ty: TokenType) -> &'static str {
+        match ty {
+            TokenType::Comment(_) => self.comments,
+            TokenType::Function => self.functions,
+            TokenType::Keyword => self.keywords,
+            TokenType::Literal => self.literals,
+            TokenType::Hyperlink => self.special,
+            TokenType::Numeric(_) => self.numerics,
+            TokenType::Punctuation(_) => self.punctuation,
+            TokenType::Special => self.special,
+            TokenType::Str(_) => self.strs,
+            TokenType::Type => self.types,
+            TokenType::Whitespace(_) | TokenType::Unknown => self.comments,
+        }
+    }
+
+    #[cfg(feature = "egui")]
+    pub fn type_color(&self, ty: TokenType) -> Color32 {
+        match ty {
+            TokenType::Comment(_) => color_from_hex(self.comments),
+            TokenType::Function => color_from_hex(self.functions),
+            TokenType::Keyword => color_from_hex(self.keywords),
+            TokenType::Literal => color_from_hex(self.literals),
+            TokenType::Hyperlink => color_from_hex(self.special),
+            TokenType::Numeric(_) => color_from_hex(self.numerics),
+            TokenType::Punctuation(_) => color_from_hex(self.punctuation),
+            TokenType::Special => color_from_hex(self.special),
+            TokenType::Str(_) => color_from_hex(self.strs),
+            TokenType::Type => color_from_hex(self.types),
+            TokenType::Whitespace(_) | TokenType::Unknown => {
+                color_from_hex(self.comments)
+            }
+        }
+        .unwrap_or(ERROR_COLOR)
+    }
+
+    pub fn monocolor(
+        dark: bool,
+        bg: &'static str,
+        fg: &'static str,
+        cursor: &'static str,
+        selection: &'static str,
+    ) -> Self {
+        ColorTheme {
+            name: "monocolor",
+            dark,
+            bg,
+            cursor,
+            selection,
+            literals: fg,
+            numerics: fg,
+            keywords: fg,
+            functions: fg,
+            punctuation: fg,
+            types: fg,
+            strs: fg,
+            comments: fg,
+            special: fg,
+        }
+    }
+}

dsa_editor/src/themes/theme.rs

@@ -0,0 +1,22 @@
+use super::ColorTheme;
+
+impl ColorTheme {
+    /// Author : Jakub Bartodziej <kubabartodziej@gmail.com>
+    /// Theme uses the gruvbox dark palette with standard contrast <https://github.com/morhetz/gruvbox>
+    pub const THEME: ColorTheme = ColorTheme {
+        name: "Theme",
+        dark: true,
+        bg: "#1b1b1b",
+        cursor: "#de5252",      // fg4
+        selection: "#28323B",   // bg2
+        comments: "#444444",    // gray1
+        functions: "#7CCCC7",   // green1
+        keywords: "#6C81E0",    // red1
+        literals: "#A3ABFF",    // fg1
+        numerics: "#8A46CF",    // purple1
+        punctuation: "#99C9C9", // orange1
+        strs: "#618c84",        // aqua1
+        types: "#B8B9D4",       // yellow1
+        special: "#de5252",     // blue1
+    };
+}