adjust default simulation speed to always take ~5 seconds

embroider_params.py

@@ -401,7 +401,7 @@ class SettingsFrame(wx.Frame):
             simulator_pos.x += 5
 
             try:
-                self.simulate_window = EmbroiderySimulator(None, -1, "Embroidery Simulator", simulator_pos, size=(300, 300), patches=patches, on_close=self.simulate_window_closed, stitches_per_frame=10)
+                self.simulate_window = EmbroiderySimulator(None, -1, "Embroidery Simulator", simulator_pos, size=(300, 300), patches=patches, on_close=self.simulate_window_closed, target_duration=5)
             except:
                 with open('/tmp/params_debug.log', 'a') as log:
                     print >> log, traceback.format_exc()

embroider_simulate.py

@@ -14,6 +14,7 @@ class EmbroiderySimulator(wx.Frame):
         self.on_close_hook = kwargs.pop('on_close', None)
         self.frame_period = kwargs.pop('frame_period', 80)
         self.stitches_per_frame = kwargs.pop('stitches_per_frame', 1)
+        self.target_duration = kwargs.pop('target_duration', None)
 
         wx.Frame.__init__(self, *args, **kwargs)
 
@@ -22,6 +23,9 @@ class EmbroiderySimulator(wx.Frame):
 
         self.load(stitch_file, patches)
 
+        if self.target_duration:
+            self.adjust_speed(self.target_duration)
+
         self.buffer = wx.Bitmap(self.width, self.height)
         self.dc = wx.MemoryDC()
         self.dc.SelectObject(self.buffer)
@@ -51,6 +55,14 @@ class EmbroiderySimulator(wx.Frame):
 
         self.width, self.height = self.get_dimensions()
 
+    def adjust_speed(self, duration):
+        self.frame_period = 1000 * float(duration) / len(self.segments)
+        self.stitches_per_frame = 1
+
+        while self.frame_period < 1.0:
+            self.frame_period *= 2
+            self.stitches_per_frame *= 2
+
     def on_key_down(self, event):
         keycode = event.GetKeyCode()