""" smilTimer.py
    use tk to build a quick timer for 
    SMIL and other technologies
"""

from Tkinter import *
import time

class App:
    def __init__(self, parent):
        self.setupUI(parent)
        self.times = [0]
        self.begin = time.time()

    def setupUI(self, parent):
        self.frame = Frame(parent, bg = "blue")
        self.frame.grid()
        self.lblOutput = Label(self.frame, 
                               bg = "blue",
                               fg = "white",
                               font = "courier 20 bold",
                               text = "Use buttons for control")
        self.lblOutput.grid()
        self.btnBegin = Button(self.frame, 
                               text = "begin",
                               width = 30,
                               command = self.begin)
        self.btnBegin.grid()
        
        self.btnInterval = Button(self.frame, 
                                  text = "interval",
                                  width = 30,
                                  command = self.interval)
        self.btnInterval.grid()        
        
        self.btnSmil = Button(self.frame,
                              text = "create smil",
                              width = 30,
                              command = self.createSmil)
        self.btnSmil.grid()
        self.lblTimes = Label(self.frame,
                              bg = "white",
                              width = 60)
        self.lblTimes.grid()
        for item in self.lblOutput.config():
            print item

    def begin(self):
        self.begin = time.time()
        self.times = [0]
        self.showTimes()
    
    def interval(self):
        now = time.time()
        elapsed = now - self.begin
        self.times.append(elapsed)
        self.showTimes()

    def createSmil(self):
        #print "in createSmil"
        self.lblTimes["text"] = """
        SMIL or other synchronized XML content will go here
        """
    
    def showTimes(self):
        counter = 0
        numPerLine = 8
        output = ""
        for moment in self.times:
            output += "%.2f\t" % moment
            counter += 1
            if counter >= numPerLine:
                counter = 0
                output += "\n"
        #print ""
        #print output
        self.lblTimes["text"] = output

def main():
    root = Tk()
    root.title("SMIL Timer")
    app = App(root)
    root.mainloop()
    
if __name__ == "__main__":
    main()