gitkraft 0.6.1

GitKraft — Git IDE desktop application (Iced GUI)
Documentation 
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//! Theme selector widget for the GitKraft GUI.
//!
//! Provides a [`pick_list()`] drop-down that lets the user switch between
//! all 27 unified themes defined in `gitkraft_core` at runtime.

use iced::widget::pick_list;
use iced::{Element, Length};

use crate::message::Message;

/// A wrapper around a theme index that implements `Display` for the pick-list.
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ThemeChoice {
    pub index: usize,
    pub name: &'static str,
}

impl std::fmt::Display for ThemeChoice {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        f.write_str(self.name)
    }
}

/// All available themes as [`ThemeChoice`] values, derived from the canonical
/// core definitions.
pub fn all_themes() -> Vec<ThemeChoice> {
    gitkraft_core::THEME_NAMES
        .iter()
        .enumerate()
        .map(|(i, name)| ThemeChoice { index: i, name })
        .collect()
}

/// Create a theme selector [`pick_list()`] widget.
///
/// The widget displays the name of the current theme and, when opened, lists
/// every theme returned by [`all_themes`]. Selecting a new entry emits
/// [`Message::ThemeChanged`] with the chosen theme index.
pub fn theme_selector(current_theme_index: usize) -> Element<'static, Message> {
    let choices = all_themes();
    let selected = choices.get(current_theme_index).cloned();

    pick_list(choices, selected, |choice| {
        Message::ThemeChanged(choice.index)
    })
    .placeholder("Select theme")
    .text_size(13.0)
    .width(Length::Fixed(180.0))
    .into()
}