Create progressbar.py

examples/progressbar.py

@@ -0,0 +1,42 @@
+# Downloaded from http://code.activestate.com/recipes/168639-progress-bar-class/
+# 12 January 2013
+
+class ProgressBar:
+    
+    def __init__(self, minValue = 0, maxValue = 10, totalWidth=12):
+        self.progBar = "[]"   # This holds the progress bar string
+        self.min = minValue
+        self.max = maxValue
+        self.span = maxValue - minValue
+        self.width = totalWidth
+        self.amount = 0       # When amount == max, we are 100% done 
+        self.updateAmount(0)  # Build progress bar string
+        
+    def updateAmount(self, newAmount = 0):
+        if newAmount < self.min: newAmount = self.min
+        if newAmount > self.max: newAmount = self.max
+        self.amount = newAmount
+        
+        # Figure out the new percent done, round to an integer
+        diffFromMin = float(self.amount - self.min)
+        percentDone = (diffFromMin / float(self.span)) * 100.0
+        percentDone = round(percentDone)
+        percentDone = int(percentDone)
+        
+        # Figure out how many hash bars the percentage should be
+        allFull = self.width - 2
+        numHashes = (percentDone / 100.0) * allFull
+        numHashes = int(round(numHashes))
+        
+        # build a progress bar with hashes and spaces
+        self.progBar = "[" + '#'*numHashes + ' '*(allFull-numHashes) + "]"
+        
+        # figure out where to put the percentage, roughly centered
+        percentPlace = int((len(self.progBar) / 2) - len(str(percentDone))) 
+        percentString = str(percentDone) + "%"
+        
+        # slice the percentage into the bar
+        self.progBar = self.progBar[0:percentPlace] + percentString + self.progBar[percentPlace+len(percentString):]
+        
+    def __str__(self):
+        return str(self.progBar)