| [349] | 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() |
|---|
