Fix division by zero error

Author: mhochsteger

webgpu/font.py

@@ -126,8 +126,8 @@ def set_font_size(self, font_size: int):
         self.update()
 
     def update(self):
-        self.uniforms.width_normalized = 2.0 * self.uniforms.width / self.canvas.width
-        self.uniforms.height_normalized = 2.0 * self.uniforms.height / self.canvas.height
+        self.uniforms.width_normalized = 2.0 * self.uniforms.width / max(self.canvas.width, 1)
+        self.uniforms.height_normalized = 2.0 * self.uniforms.height / max(self.canvas.height, 1)
         self.uniforms.update_buffer()
 
 

webgpu/input_handler.py

@@ -4,6 +4,7 @@
 from .utils import to_js
 import threading
 
+
 class InputHandler:
     def __init__(self, html_canvas):
         self._mutex = threading.Lock()

webgpu/link/base.py

@@ -262,6 +262,7 @@ async def _on_message_async(self, message: str):
         except Exception as e:
             import traceback
             import sys
+
             print("error in on_message", data, type(e), str(e), file=sys.stderr)
             if not isinstance(e, str):
                 traceback.print_exception(*sys.exc_info(), file=sys.stderr)

webgpu/scene.py

@@ -54,6 +54,7 @@ def __init__(
 
             id = str(uuid.uuid4())
         import threading
+
         self.redraw_mutex = threading.Lock()
 
         self._id = id