Source Code for Module teamwork.widgets.ProgressBar

 1  """ 
 2  A  basic widget for showing the progress 
 3  being made in a task. 
 4   
 5  """ 
 6   
 7  from Tkinter import * 
 8   
 9 -class ProgressBar: 
10 -    def __init__(self, master=None, orientation="horizontal", 
11                   min=0, max=100, width=100, height=18, 
12                   doLabel=1, appearance="sunken", 
13                   fillColor="blue", background="gray", 
14                   labelColor="yellow", labelFont="Verdana", 
15                   labelText="", labelFormat="%d%%", 
16                   value=50, bd=2): 
17          # preserve various values 
18          self.master=master 
19          self.orientation=orientation 
20          self.min=min 
21          self.max=max 
22          self.width=width 
23          self.height=height 
24          self.doLabel=doLabel 
25          self.fillColor=fillColor 
26          self.labelFont= labelFont 
27          self.labelColor=labelColor 
28          self.background=background 
29          self.labelText=labelText 
30          self.labelFormat=labelFormat 
31          self.value=value 
32          self.frame=Frame(master, relief=appearance, bd=bd) 
33          self.canvas=Canvas(self.frame, height=height, width=width, bd=0, 
34                             highlightthickness=0, background=background) 
35          self.scale=self.canvas.create_rectangle(0, 0, width, height, 
36                                                  fill=fillColor) 
37          self.label=self.canvas.create_text(self.canvas.winfo_reqwidth() / 2, 
38                                             height / 2, text=labelText, 
39                                             anchor="c", fill=labelColor, 
40                                             font=self.labelFont) 
41          self.update() 
42          self.canvas.pack(side='top', fill='x', expand='no') 
43   
44 -    def updateProgress(self, newValue, newMax=None): 
45          if newMax: 
46              self.max = newMax 
47          self.value = newValue 
48          self.update() 
49   
50 -    def update(self): 
51          # Trim the values to be between min and max 
52          value=self.value 
53          if value > self.max: 
54              value = self.max 
55          if value < self.min: 
56              value = self.min 
57          # Adjust the rectangle 
58          if self.orientation == "horizontal": 
59              self.canvas.coords(self.scale, 0, 0, 
60                       float(value) / self.max * self.width, self.height) 
61          else: 
62              self.canvas.coords(self.scale, 0, 
63                                 self.height - (float(value) / self.max*self.height), 
64                                 self.width, self.height) 
65          # Now update the colors 
66          self.canvas.itemconfig(self.scale, fill=self.fillColor) 
67          self.canvas.itemconfig(self.label, fill=self.labelColor) 
68          # And update the label 
69          if self.doLabel: 
70              if value: 
71                  if value >= 0: 
72                      pvalue = int((float(value) / float(self.max)) * 100.0) 
73                  else: 
74                      value = 0 
75                  self.canvas.itemconfig(self.label, text=self.labelFormat % value) 
76              else: 
77                  self.canvas.itemconfig(self.label, text='') 
78          else: 
79              self.canvas.itemconfig(self.label, text=self.labelFormat % self.labelText) 
80          self.canvas.update_idletasks() 
81