account for variable width spacing

dot-matrix/src/font/font.rs

@@ -32,6 +32,8 @@ impl Font {
     }
 
     pub fn get_char_bitmap(&self, index: u64) -> Option<Vec<Vec<u8>>> {
+        let mut char_width: u8 = 0;
+
         let bytes = self
             .font_parsed
             .get("data")?
@@ -39,6 +41,8 @@ impl Font {
             .iter()
             .find(|entry| entry.get("n").map_or(false, |n| n == index))
             .and_then(|character| {
+                char_width = character.get("w")?.as_u64().unwrap() as u8;
+
                 character.get("b")?.as_array().map(|arr| {
                     arr.iter()
                         .filter_map(|val| val.as_u64())
@@ -52,7 +56,10 @@ impl Font {
             .flat_map(|&byte| (0..8).rev().map(move |i| (byte >> i) & 1))
             .collect::<Vec<u8>>();
 
-        let char_matrix = bits.chunks(5).map(|chunk| chunk.to_vec()).collect();
+        let char_matrix = bits
+            .chunks(char_width.into())
+            .map(|chunk| chunk.to_vec())
+            .collect();
 
         Some(char_matrix)
     }

dot-matrix/src/main.rs

@@ -76,7 +76,7 @@ fn build_ui(app: &gtk::Application) {
     // insert_matrix_at(&mut dot_matrix, &insert_matrix, 0, 6);
     // insert_matrix_at(&mut dot_matrix, &char_bitmap, 0, 12);
 
-    let thing = String::from("i");
+    let thing = String::from("ABCDEFG");
     let ascii_values: &Vec<u8> = &thing.chars().map(|c| c as u8).collect();
 
     let mut col_offset = 0;