diff --git a/src/gui/resizablecanvas.py b/src/gui/resizablecanvas.py
new file mode 100644
--- /dev/null
+++ b/src/gui/resizablecanvas.py
@@ -0,0 +1,34 @@
+import tkinter as tk
+
+
+class ResizableCanvas(tk.Canvas):
+	def __init__(self, master=None):
+		tk.Canvas.__init__(self, master, highlightthickness=0)
+
+		self._master=master
+		self._width=0
+		self._height=0
+
+		master.bind("<Configure>", self._onResize)
+		
+	def configure(self,*args,**kwargs):
+		if "width" in kwargs: self._width=kwargs["width"]
+		if "height" in kwargs: self._height=kwargs["height"]
+		
+		super().configure(*args,**kwargs)
+
+	def _onResize(self, event):
+		wScale=float(event.width)/self._width
+		hScale=float(event.height)/self._height
+		scale=min(wScale,hScale)
+
+		self._width*=scale
+		self._height*=scale
+		self.scale("all",0,0,scale,scale) # rescale all the objects tagged with the "all" tag
+
+		x=(event.width-self._width)/2
+		y=(event.height-self._height)/2
+
+		# place the widget, giving it an explicit size
+		self.place(in_=self._master, x=x, y=y, width=self._width, height=self._height)
+		return scale