Character loading without numpy usage

canvas.py

@@ -1,3 +1,4 @@
+import base64
 import tkinter
 
 GRID_COLOR = "#808080"
@@ -10,6 +11,7 @@ class EditorCanvas(tkinter.Canvas):
         self.grid_size = 32
         self.current_char=33
         self.current_char_pixels=[]
+        self.current_char_modified=False
         self.width=0
         self.height=0
         self.bind("<B1-Motion>",self.handle_draw)
@@ -27,10 +29,10 @@ class EditorCanvas(tkinter.Canvas):
             y = y * self.grid_size
             self.create_line((0,y),(self.width,y),width=1,fill=GRID_COLOR)
 
-        if self.project.does_char_exist(self.current_char):
+        if self.project.does_char_exist(self.current_char) or self.current_char_modified:
             for i in range(len(self.current_char_pixels)):
-                x=i%self.project.char_res[0]*self.grid_size
+                x=i//self.project.char_res[1]*self.grid_size
-                y=i//self.project.char_res[0]*self.grid_size
+                y=i%self.project.char_res[1]*self.grid_size
                 if self.current_char_pixels[i]>0:
                     self.create_rectangle((x,y),(x+self.grid_size,y+self.grid_size),fill="white")
         else:
@@ -39,14 +41,35 @@ class EditorCanvas(tkinter.Canvas):
 
 
     def handle_draw(self,event):
+        self.current_char_modified=True
         pixel_pos=self.cursor_pos_to_pixel((event.x,event.y))
-        self.current_char_pixels[pixel_pos[1]*self.project.char_res[0]+pixel_pos[0]]=1
+        self.current_char_pixels[pixel_pos[0]*self.project.char_res[1]+pixel_pos[1]]=1
         self.draw()
 
 
     def load_char(self):
+        self.current_char_modified=False
+        if not self.project.does_char_exist(self.current_char):
+            for x in range(len(self.current_char_pixels)):
+                self.current_char_pixels[x]=0
+            return
+        base64_data=self.project.chars[chr(self.current_char)]
+        pixels=base64.b64decode(base64_data.encode("ascii"))
+        pixel_index=0
+        for pixel in pixels:
+            if pixel_index>=len(self.current_char_pixels):
+                break
+            for x in range(8):
+                if pixel_index>=len(self.current_char_pixels):
+                    break
+                self.current_char_pixels[pixel_index]=(pixel>>(7-x))&1
+                pixel_index+=1
+        self.draw()
 
 
+    def save_char(self):
+        pass
+
 
     def prev_glyph(self):
         self.current_char-=1

main.py

@@ -2,7 +2,6 @@ import os
 import numpy as np
 import cli_ui
 import unicodedata
-import base64
 from exporter import export
 
 from canvas import *