Refactoring; Add title bar

Author: nx10

src/app.rs

@@ -1,6 +1,6 @@
 use std::error;
 
-use crate::sampler3d;
+use crate::{utils, widgets};
 
 /// Application result type.
 pub type AppResult<T> = std::result::Result<T, Box<dyn error::Error>>;
@@ -11,54 +11,53 @@ pub enum AppMode {
     MetaData,
 }
 
-#[derive(Debug, Clone, Copy)]
-pub enum ColorMode {
-    TrueColor,
-    Ansi256,
-    Bw,
-}
-
 /// Application.
 #[derive(Debug)]
 pub struct App {
     /// Is the application running?
     pub running: bool,
 
     pub file_path: String,
-    pub image_sampler: sampler3d::Sampler3D,
-    pub image_cache: sampler3d::ImageCache,
+    pub image_sampler: utils::sampler3d::Sampler3D,
+    pub image_cache: utils::sampler3d::ImageCache,
     pub intensity_range: (f32, f32),
     pub slice_position: Vec<usize>,
     pub increment: usize,
     pub mode: AppMode,
     pub color_map: colorous::Gradient,
-    pub color_mode: ColorMode,
+    pub color_mode: utils::colors::ColorMode,
+    pub metadata: widgets::key_value_list_widget::KeyValueList,
+    pub metadata_index: usize,
 }
 
 impl App {
     /// Constructs a new instance of [`App`].
-    pub fn new(file_path: &str, color_mode: ColorMode) -> Self {
+    pub fn new(file_path: &str, color_mode: utils::colors::ColorMode) -> Self {
         println!("Read nifti...");
-        let sampler = sampler3d::Sampler3D::from_nifti(file_path).unwrap();
+        let sampler = utils::sampler3d::Sampler3D::from_nifti(file_path).unwrap();
         let intensity_range = sampler.intensity_range();
         let middle_slice = sampler.middle_slice();
 
         let increment = sampler.shape().iter().copied().sum::<usize>() / sampler.shape().len() / 32;
 
+        let metadata = utils::metadata::make_metadata_key_value_list(&sampler);
+
         println!(" done!");
-        println!("Image dimensions {:?}", sampler.shape());
+        //println!("Image dimensions {:?}", sampler.shape());
 
         Self {
             running: true,
             file_path: file_path.to_string(),
             image_sampler: sampler,
-            image_cache: sampler3d::ImageCache::new(),
+            image_cache: utils::sampler3d::ImageCache::new(),
             intensity_range: intensity_range,
             slice_position: middle_slice,
             increment: increment,
             mode: AppMode::Xyz,
             color_map: colorous::INFERNO,
             color_mode: color_mode,
+            metadata: metadata,
+            metadata_index: 0,
         }
     }