change image paths are handled relative from the data file

src/main.rs

@@ -13,6 +13,7 @@ pub use crate::ui::ImageUI;
 
 use std::cell::{RefCell};
 use std::fs;
+use std::path::Path;
 use std::sync::{Arc};
 
 use adw::{prelude::*, Application};
@@ -113,13 +114,20 @@ fn build_ui(app: &Application) {
                     let mut state = state.borrow_mut();
                     
                     state.replace_foucs_stacks(new_dataset);
-                    state.save_path = Some(
-                        filename.clone().as_path()
-                        .to_str()
-                        .expect("failed to convert filname to str")
-                        .to_string()
-                    );
-                    eprintln!("{}", state.save_path.clone().unwrap());
+                    state.file_name = filename.clone().as_path().file_name().map(|x| x.to_str().expect("failed to convert filname to str").to_string());
+                    state.root_path = filename.clone().as_path().parent().map(|x| x.to_str().expect("failed to convert filname to str").to_string());
+
+                    match (state.root_path.clone(), state.file_name.clone()) {
+                        (Some(root_path), Some(file_name)) => {
+                            let path = Path::new(&root_path).join(Path::new(&file_name));
+                            eprintln!("{:?}", path);
+                        }
+                        (_,_) => {
+                            eprintln!("Path not properly set");
+                        }
+                    }
+                    
+                    
                     image_ui.update(&state);
                 }
                 dialog.close();        

src/state/mod.rs

@@ -1,4 +1,5 @@
 use std::io::Write;
+use std::path::Path;
 use std::{collections::HashMap, fs::File};
 
 use serde::{Deserialize, Serialize};
@@ -10,7 +11,8 @@ pub struct State {
     stacks: Vec<AnnotationZStack>,
     stack_index: Option<usize>,
     pub image_index: Option<usize>,
-    pub save_path: Option<String>,
+    pub file_name: Option<String>,
+    pub root_path: Option<String>,
 }
 
 impl State {
@@ -19,7 +21,8 @@ impl State {
             stacks: Vec::new(),
             stack_index: None,
             image_index: None,
-            save_path: None,
+            file_name: None,
+            root_path: None,
         }
     }
     pub fn set_image_index(&mut self, image_index: Option<usize>) {
@@ -93,7 +96,9 @@ impl State {
     }
 
     pub fn save(&self) {
-        if let Some(path) = self.save_path.clone() {
+        match (self.root_path.clone(), self.file_name.clone()) {
+            (Some(root_path), Some(file_name)) => {
+                let path = Path::new(&root_path).join(Path::new(&file_name));
                 match File::create(path) {
                     Ok(mut file) => {
                         let contents =
@@ -109,11 +114,13 @@ impl State {
                         eprintln!("{}", e.to_string());
                     }
                 };
-        } else {
+            }
+            (_, _) => {
                 // TODO: error dialogue
                 eprintln!("No save path specified");
             }
         }
+    }
 
     pub fn previous(&mut self) {
         let len = self.stacks.len();

src/ui/mod.rs

@@ -1,4 +1,4 @@
-use std::sync::Arc;
+use std::{path::Path, sync::Arc};
 
 use adw::{Application, ApplicationWindow, HeaderBar, SplitButton};
 use gtk::{
@@ -196,19 +196,31 @@ impl ImageUI {
     }
 
     pub fn update(&self, state: &State) {
-        if let Some(annotation_image) = state.get_current_annotation_image() {
-            self.update_image(&annotation_image);
+        match (
+            state.get_current_annotation_image(),
+            state.root_path.clone(),
+        ) {
+            (Some(annotation_image), Some(base_path)) => {
+                self.update_image(&annotation_image, base_path)
+            }
+            (_, _) => {}
         }
         self.update_focus_scale(&state);
     }
-    fn update_image(&self, annotation_image: &AnnotationImage) {
-        self.individual
-            .set_from_file(Some(annotation_image.image_path.clone()));
-        self.center
-            .set_from_file(Some(annotation_image.image_path.clone()));
+    fn update_image(&self, annotation_image: &AnnotationImage, base_path: String) {
+        self.individual.set_from_file(Some(
+            Path::new(&base_path).join(Path::new(&annotation_image.image_path)),
+        ));
+        self.center.set_from_file(Some(
+            Path::new(&base_path).join(Path::new(&annotation_image.image_path)),
+        ));
 
         for index in 0..annotation_image.neighbours.len() {
-            self.neighbours[index].set_from_file(annotation_image.neighbours[index].clone());
+            self.neighbours[index].set_from_file(
+                annotation_image.neighbours[index]
+                    .clone()
+                    .map(|x| Path::new(&base_path).join(Path::new(&x))),
+            );
         }
     }