Add configurable theme

src/config.rs

@@ -11,6 +11,26 @@ pub struct Config {
     pub username: String,
     pub password: String,
     pub keybindings: Option<HashMap<String, String>>,
+    pub theme: Option<ConfigTheme>,
+}
+
+#[derive(Serialize, Deserialize, Debug, Default, Clone)]
+pub struct ConfigTheme {
+    pub background: Option<String>,
+    pub primary: Option<String>,
+    pub secondary: Option<String>,
+    pub title: Option<String>,
+    pub playing: Option<String>,
+    pub playing_bg: Option<String>,
+    pub highlight: Option<String>,
+    pub highlight_bg: Option<String>,
+    pub error: Option<String>,
+    pub error_bg: Option<String>,
+    pub statusbar_progress: Option<String>,
+    pub statusbar: Option<String>,
+    pub statusbar_bg: Option<String>,
+    pub cmdline: Option<String>,
+    pub cmdline_bg: Option<String>,
 }
 
 pub fn config_path() -> PathBuf {

src/main.rs

@@ -72,10 +72,12 @@ fn main() {
         })
     };
 
+    let theme = theme::load(&cfg);
+
     let logview = DebugView::new();
 
     let mut cursive = Cursive::default();
-    cursive.set_theme(theme::default());
+    cursive.set_theme(theme.clone());
 
     let event_manager = EventManager::new(cursive.cb_sink().clone());
 
@@ -118,7 +120,7 @@ fn main() {
 
     let status = ui::statusbar::StatusBar::new(queue.clone(), spotify.clone());
 
-    let mut layout = ui::layout::Layout::new(status, &event_manager)
+    let mut layout = ui::layout::Layout::new(status, &event_manager, theme)
         .view("search", search.with_id("search"), "Search")
         .view("log", logview_scroller, "Debug Log")
         .view("playlists", playlistsview, "Playlists")

src/theme.rs

@@ -1,14 +1,39 @@
 use cursive::theme::Color::*;
 use cursive::theme::PaletteColor::*;
+use cursive::theme::BaseColor::*;
 use cursive::theme::*;
 
-pub fn default() -> Theme {
+use config::Config;
+
+macro_rules! load_color {
+    ( $cfg: expr, $member: ident, $default: expr ) => {
+        $cfg.theme.as_ref()
+            .and_then(|t| t.$member.clone())
+            .map(|c| Color::parse(c.as_ref()).expect(&format!("Failed to parse color \"{}\"", c)))
+            .unwrap_or($default)
+    }
+}
+
+pub fn load(cfg: &Config) -> Theme {
     let mut palette = Palette::default();
     let borders = BorderStyle::None;
 
-    palette[Background] = TerminalDefault;
-    palette[View] = TerminalDefault;
-    palette[Primary] = TerminalDefault;
+    palette[Background] = load_color!(cfg, background, TerminalDefault);
+    palette[View] = load_color!(cfg, background, TerminalDefault);
+    palette[Primary] = load_color!(cfg, primary, TerminalDefault);
+    palette[Secondary] = load_color!(cfg, secondary, Dark(Blue));
+    palette[TitlePrimary] = load_color!(cfg, title, Dark(Red));
+    palette[Tertiary] = load_color!(cfg, highlight, TerminalDefault);
+    palette[Highlight] = load_color!(cfg, highlight_bg, Dark(Red));
+    palette.set_color("playing", load_color!(cfg, playing, Dark(Blue)));
+    palette.set_color("playing_bg", load_color!(cfg, playing_bg, TerminalDefault));
+    palette.set_color("error", load_color!(cfg, error, TerminalDefault));
+    palette.set_color("error_bg", load_color!(cfg, error_bg, Dark(Red)));
+    palette.set_color("statusbar_progress", load_color!(cfg, statusbar_progress, Dark(Blue)));
+    palette.set_color("statusbar", load_color!(cfg, statusbar, Dark(Yellow)));
+    palette.set_color("statusbar_bg", load_color!(cfg, statusbar_bg, TerminalDefault));
+    palette.set_color("cmdline", load_color!(cfg, cmdline, TerminalDefault));
+    palette.set_color("cmdline_bg", load_color!(cfg, cmdline_bg, TerminalDefault));
 
     Theme {
         shadow: false,

src/ui/layout.rs

@@ -4,7 +4,7 @@ use std::time::{Duration, SystemTime};
 use cursive::align::HAlign;
 use cursive::direction::Direction;
 use cursive::event::{AnyCb, Event, EventResult};
-use cursive::theme::ColorStyle;
+use cursive::theme::{Theme, ColorStyle, ColorType};
 use cursive::traits::View;
 use cursive::vec::Vec2;
 use cursive::view::{IntoBoxedView, Selector};
@@ -30,21 +30,32 @@ pub struct Layout {
     error_time: Option<SystemTime>,
     screenchange: bool,
     ev: events::EventManager,
+    theme: Theme
 }
 
 impl Layout {
-    pub fn new<T: IntoBoxedView>(status: T, ev: &events::EventManager) -> Layout {
+    pub fn new<T: IntoBoxedView>(
+        status: T,
+        ev: &events::EventManager,
+        theme: Theme
+    ) -> Layout {
+        let style = ColorStyle::new(
+            ColorType::Color(*theme.palette.custom("cmdline_bg").unwrap()),
+            ColorType::Color(*theme.palette.custom("cmdline").unwrap()),
+        );
+
         Layout {
             views: HashMap::new(),
             title: String::new(),
             statusbar: status.as_boxed_view(),
             focus: None,
-            cmdline: EditView::new().filler(" "),
+            cmdline: EditView::new().filler(" ").style(style),
             cmdline_focus: false,
             error: None,
             error_time: None,
             ev: ev.clone(),
             screenchange: true,
+            theme: theme,
         }
     }
 
@@ -135,7 +146,11 @@ impl View for Layout {
             .draw(&printer.offset((0, printer.size.y - 2 - cmdline_height)));
 
         if let Some(e) = error {
-            printer.with_color(ColorStyle::highlight(), |printer| {
+            let style = ColorStyle::new(
+                ColorType::Color(*self.theme.palette.custom("error").unwrap()),
+                ColorType::Color(*self.theme.palette.custom("error_bg").unwrap()),
+            );
+            printer.with_color(style, |printer| {
                 printer.print_hline((0, printer.size.y - cmdline_height), printer.size.x, " ");
                 printer.print(
                     (0, printer.size.y - cmdline_height),

src/ui/listview.rs

@@ -3,7 +3,7 @@ use std::sync::{Arc, RwLock};
 
 use cursive::align::HAlign;
 use cursive::event::{Event, EventResult, MouseButton, MouseEvent};
-use cursive::theme::ColorStyle;
+use cursive::theme::{ColorStyle, ColorType, PaletteColor};
 use cursive::traits::View;
 use cursive::view::ScrollBase;
 use cursive::{Printer, Rect, Vec2};
@@ -64,9 +64,15 @@ impl<I: ListItem> View for ListView<I> {
             let item = &content[i];
 
             let style = if self.selected == i {
-                ColorStyle::highlight()
+                ColorStyle::new(
+                    ColorType::Palette(PaletteColor::Tertiary),
+                    ColorType::Palette(PaletteColor::Highlight)
+                )
             } else if item.is_playing(self.queue.clone()) {
-                ColorStyle::secondary()
+                ColorStyle::new(
+                    ColorType::Color(*printer.theme.palette.custom("playing").unwrap()),
+                    ColorType::Color(*printer.theme.palette.custom("playing_bg").unwrap())
+                )
             } else {
                 ColorStyle::primary()
             };

src/ui/statusbar.rs

@@ -1,7 +1,7 @@
 use std::sync::Arc;
 
 use cursive::align::HAlign;
-use cursive::theme::ColorStyle;
+use cursive::theme::{ColorStyle, ColorType, PaletteColor};
 use cursive::traits::View;
 use cursive::vec::Vec2;
 use cursive::Printer;
@@ -30,8 +30,14 @@ impl View for StatusBar {
             return;
         }
 
-        let style_bar = ColorStyle::secondary();
-        let style = ColorStyle::title_secondary();
+        let style_bar = ColorStyle::new(
+            ColorType::Color(*printer.theme.palette.custom("statusbar_progress").unwrap()),
+            ColorType::Palette(PaletteColor::Background),
+        );
+        let style = ColorStyle::new(
+            ColorType::Color(*printer.theme.palette.custom("statusbar").unwrap()),
+            ColorType::Color(*printer.theme.palette.custom("statusbar_bg").unwrap()),
+        );
 
         printer.print(
             (0, 0),