Issue oppiliappan#121: Cursor Color Customization

The user can now specify which color they want the cursor to be in the
config file.
E.g.
---
cursor = "light blue"
---

Additionally, I've added a few more colors to choose from.

src/theme.rs

@@ -25,6 +25,6 @@ pub fn theme_gen() -> Theme {
     return t;
 }
 
-pub fn cursor_bg() -> Color {
-    Light(cursive::theme::BaseColor::Black)
-}
+// pub fn cursor_bg() -> Color {
+//     Light(cursive::theme::BaseColor::Black)
+// }

src/utils.rs

@@ -44,8 +44,11 @@ pub struct Colors {
     pub todo: String,
     #[serde(default = "light_black")]
     pub inactive: String,
+    #[serde(default = "dark_white")]
+    pub cursor: String,
 }
 
+// Cyan and Magenta are dark by default
 fn cyan() -> String {
     "cyan".into()
 }
@@ -55,13 +58,55 @@ fn magenta() -> String {
 fn light_black() -> String {
     "light black".into()
 }
+fn light_cyan() -> String {
+    "light cyan".into()
+}
+fn light_magenta() -> String {
+    "light magenta".into()
+}
+fn light_blue() -> String {
+    "light blue".into()
+}
+fn light_green() -> String {
+    "light green".into()
+}
+fn light_red() -> String {
+    "light red".into()
+}
+fn light_white() -> String {
+    "light white".into()
+}
+fn light_yellow() -> String {
+    "light yellow".into()
+}
+fn dark_white() -> String {
+    "dark white".into()
+}
+fn dark_black() -> String {
+    "dark black".into()
+}
+fn dark_blue() -> String {
+    "dark blue".into()
+}
+fn dark_green() -> String {
+    "dark green".into()
+}
+fn dark_red() -> String {
+    "dark red".into()
+}
+fn dark_yellow() -> String {
+    "dark yellow".into()
+}
+
+
 
 impl Default for Colors {
     fn default() -> Self {
         Colors {
             reached: cyan(),
             todo: magenta(),
             inactive: light_black(),
+            cursor: light_black(),
         }
     }
 }
@@ -95,6 +140,9 @@ impl AppConfig {
     pub fn inactive_color(&self) -> Color {
         return Color::parse(&self.colors.inactive).unwrap_or(Color::Light(BaseColor::Black));
     }
+    pub fn cursor_color(&self) -> Color {
+        return Color::parse(&self.colors.cursor).unwrap_or(Color::Light(BaseColor::Black));
+    }
 }
 
 pub fn load_configuration_file() -> AppConfig {

src/views.rs

@@ -8,7 +8,7 @@ use chrono::prelude::*;
 use chrono::{Local, NaiveDate};
 
 use crate::habit::{Bit, Count, Float, Habit, TrackEvent, ViewMode};
-use crate::theme::cursor_bg;
+// use crate::theme::cursor_bg;
 use crate::utils::VIEW_WIDTH;
 
 use crate::CONFIGURATION;
@@ -115,7 +115,7 @@ where
                 let mut fs = future_style;
                 let grs = ColorStyle::front(CONFIGURATION.reached_color());
                 let ts = ColorStyle::front(CONFIGURATION.todo_color());
-                let cs = ColorStyle::back(cursor_bg());
+                let cs = ColorStyle::back(CONFIGURATION.cursor_color());
 
                 if self.reached_goal(d) {
                     day_style = day_style.combine(Style::from(grs));