feat: add config loading, with theming support, limited to Palette for now

1 files changed, 124 insertions, 0 deletions

diff --git a/iced_builder/src/theme.rs b/iced_builder/src/theme.rs
new file mode 100644
index 0000000..21ec6e3
--- /dev/null
+++ b/iced_builder/src/theme.rs
@@ -0,0 +1,124 @@
+use std::sync::Arc;
+
+use iced::Color;
+
+use crate::config::Config;
+
+pub fn theme_index(theme_name: String, slice: &[iced::Theme]) -> Option<usize> {
+    slice
+        .iter()
+        .position(|theme| theme.to_string() == theme_name)
+}
+
+pub fn theme_from_str(
+    config: Option<&Config>,
+    theme_name: &str,
+) -> iced::Theme {
+    match theme_name {
+        "Light" => iced::Theme::Light,
+        "Dark" => iced::Theme::Dark,
+        "Dracula" => iced::Theme::Dracula,
+        "Nord" => iced::Theme::Nord,
+        "Solarized Light" => iced::Theme::SolarizedLight,
+        "Solarized Dark" => iced::Theme::SolarizedDark,
+        "Gruvbox Light" => iced::Theme::GruvboxLight,
+        "Gruvbox Dark" => iced::Theme::GruvboxDark,
+        "Catppuccin Latte" => iced::Theme::CatppuccinLatte,
+        "Catppuccin Frappé" => iced::Theme::CatppuccinFrappe,
+        "Catppuccin Macchiato" => iced::Theme::CatppuccinMacchiato,
+        "Catppuccin Mocha" => iced::Theme::CatppuccinMocha,
+        "Tokyo Night" => iced::Theme::TokyoNight,
+        "Tokyo Night Storm" => iced::Theme::TokyoNightStorm,
+        "Tokyo Night Light" => iced::Theme::TokyoNightLight,
+        "Kanagawa Wave" => iced::Theme::KanagawaWave,
+        "Kanagawa Dragon" => iced::Theme::KanagawaDragon,
+        "Kanagawa Lotus" => iced::Theme::KanagawaLotus,
+        "Moonfly" => iced::Theme::Moonfly,
+        "Nightfly" => iced::Theme::Nightfly,
+        "Oxocarbon" => iced::Theme::Oxocarbon,
+        "Ferra" => iced::Theme::Ferra,
+        _ => {
+            if let Some(config) = config {
+                if theme_name == config.theme.selected.to_string() {
+                    config.theme.selected.clone()
+                } else if let Some(index) =
+                    theme_index(theme_name.into(), &config.theme.all)
+                {
+                    config.theme.all[index].clone()
+                } else {
+                    iced::Theme::default()
+                }
+            } else {
+                iced::Theme::default()
+            }
+        }
+    }
+}
+
+#[derive(Debug)]
+pub struct Theme {
+    pub selected: iced::Theme,
+    pub all: Arc<[iced::Theme]>,
+}
+
+impl Default for Theme {
+    fn default() -> Self {
+        Self {
+            selected: iced::Theme::default(),
+            all: iced::Theme::ALL.into(),
+        }
+    }
+}
+
+#[derive(Debug, serde::Deserialize)]
+pub struct ThemePalette {
+    #[serde(with = "color_serde")]
+    background: Color,
+    #[serde(with = "color_serde")]
+    text: Color,
+    #[serde(with = "color_serde")]
+    primary: Color,
+    #[serde(with = "color_serde")]
+    success: Color,
+    #[serde(with = "color_serde")]
+    danger: Color,
+}
+
+impl Default for ThemePalette {
+    fn default() -> Self {
+        let palette = iced::Theme::default().palette();
+        Self {
+            background: palette.background,
+            text: palette.text,
+            primary: palette.primary,
+            success: palette.success,
+            danger: palette.danger,
+        }
+    }
+}
+
+impl From<ThemePalette> for iced::theme::Palette {
+    fn from(palette: ThemePalette) -> Self {
+        iced::theme::Palette {
+            background: palette.background,
+            text: palette.text,
+            primary: palette.primary,
+            success: palette.success,
+            danger: palette.danger,
+        }
+    }
+}
+
+mod color_serde {
+    use iced::Color;
+    use serde::{Deserialize, Deserializer};
+
+    pub fn deserialize<'de, D>(deserializer: D) -> Result<Color, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        Ok(String::deserialize(deserializer)
+            .map(|hex| Color::parse(&hex))?
+            .unwrap_or(Color::TRANSPARENT))
+    }
+}