class BicycleWheelGUI():
def __init__(self):
self.text = Text(root)
self.wheel = BicycleWheel()
self.OFFSET = 4
self.MAXSIZE = 250
def getWheelCenter(self):
return self.wheel.wheelSize + self.OFFSET
def drawCircle(self, radius):
self.canvas.create_oval( self.getWheelCenter() - radius, self.getWheelCenter() - radius, self.getWheelCenter() + radius, self.getWheelCenter() + radius)
def drawSpokes(self, numberOfSpokes, listOfSpokes):
for i in range(numberOfSpokes):
self.canvas.create_line(listOfSpokes[i][0] + self.OFFSET, listOfSpokes[i][1]+ self.OFFSET, listOfSpokes[i][2]+ self.OFFSET, listOfSpokes[i][3]+ self.OFFSET)
def createWheelSlider(self):
self.newWheelSlider = Scale( self.menuFrame, from_ = int(self.wheel.getMinWheelSizeAllowance()), to = self.MAXSIZE, orient = HORIZONTAL, label = "Wheel Radius:", command = self.onUpdateWheelSlider, tickinterval = (self.MAXSIZE - self.wheel.getMinWheelSizeAllowance())/5, length = 250)
self.newWheelSlider.set(self.wheel.wheelSize)
self.newWheelSlider.grid(row = 0, column = 0)
def createHubSlider(self):
self.newHubSlider = Scale(self.menuFrame, from_ = 0, to = int(self.wheel.getMaxHubSizeAllowance()), orient = HORIZONTAL, label = "Hub Radius:", resolution = 0.05, command = self.onUpdateWheelHubSlider, tickinterval = self.wheel.getMaxHubSizeAllowance()/5, length = 250)
self.newHubSlider.set(self.wheel.hubSize)
self.newHubSlider.grid(row = 1, column = 0)
def createSpokesSlider(self):
self.newSpokesSlider = Scale(self.menuFrame, from_ = self.wheel.MIN_SPOKES, to = self.MAXSIZE, orient = HORIZONTAL, label = "Number Of Spokes:", command = self.onUpdateWheelNumberOfSpokes, tickinterval = self.MAXSIZE/5, length = 250)
self.newSpokesSlider.set(self.wheel.numberOfSpokes)
self.newSpokesSlider.grid(row = 2, column =0)
def createMenuFrame(self):
self.menuFrame = Frame(root)
self.menuFrame.pack(side = "right")
def createMenu(self):
self.createWheelSlider()
self.createHubSlider()
self.createSpokesSlider()
self.save = Button(self.menuFrame,text = 'Save', command = self.onSave)
self.save.grid(row = 4, column = 0)
self.load = Button(self.menuFrame,text = 'Load', command = self.onLoad)
self.load.grid(row = 5, column = 0)
def clearCanvas(self):
self.canvas.delete("all")
def createWheelFrame(self):
self.wheelFrame = Frame(root)
self.wheelFrame.pack(side = 'left', expand = True)
self.canvas = Canvas(self.wheelFrame, bg ="white", width = 2*(self.MAXSIZE+self.OFFSET), height = 2*(self.MAXSIZE+self.OFFSET))
self.canvas.pack()
def drawWheel(self):
self.drawCircle(self.wheel.wheelSize)
self.drawCircle(self.wheel.hubSize)
self.drawSpokes(self.wheel.numberOfSpokes, self.wheel.getPositionOfSpokes())
def onUpdateWheelSlider(self, wheelSize):
if float(wheelSize) != self.wheel.wheelSize:
self.wheel.setWheelSize(float(wheelSize))
self.updateWheel()
self.createHubSlider()
def onUpdateWheelHubSlider(self, hubSize):
if float(hubSize) != self.wheel.hubSize:
self.wheel.setHubSize(float(hubSize))
self.updateWheel()
self.createWheelSlider()
def onUpdateWheelNumberOfSpokes(self, numberOfSpokes):
self.wheel.setNumberOfSpokes(int(numberOfSpokes))
self.updateWheel()
def updateWheel(self):
self.clearCanvas()
self.drawWheel()
def onSave(self):
self.wheel.saveFile(self.wheel.FILE_PATH)
def onLoad(self):
self.wheel.loadFile(self.wheel.FILE_PATH)
self.updateWheel()
self.createMenu()
def onCreate(self):
self.createWheelFrame()
self.drawWheel()
self.createMenuFrame()
self.createMenu()
root.mainloop()
class BicycleWheelTest(unittest.TestCase):
def setUp(self):
self.bicycleWheel = BicycleWheel()
def test_canary(self):
self.assertTrue(True)
def test_set_wheel_size_when_hub_size_is_less_than_one_forth_new_wheel_size(self):
self.bicycleWheel.setWheelSize(100.0)
self.assertEqual(100.0, self.bicycleWheel.wheelSize)
def test_set_wheel_size_when_hub_size_is_equal_to_one_forth_new_wheel_size(self):
self.bicycleWheel.setWheelSize(40.0)
self.assertEqual(40.0, self.bicycleWheel.wheelSize)
def test_set_wheel_size_when_hub_size_is_greater_than_one_forth_new_wheel_size(self):
self.bicycleWheel.setWheelSize(30.0)
self.assertEqual(80.0, self.bicycleWheel.wheelSize)
def test_set_hub_size_when_new_hub_size_is_less_than_one_forth_wheel_size(self):
self.bicycleWheel.setHubSize(10.5)
self.assertEqual(10.5, self.bicycleWheel.hubSize)
def test_set_hub_size_when_new_hub_size_is_equal_to_one_forth_wheel_size(self):
self.bicycleWheel.setHubSize(20.0)
self.assertEqual(20.0, self.bicycleWheel.hubSize)
def test_set_hub_size_when_new_hub_size_is_greater_than_one_forth_wheel_size(self):
self.bicycleWheel.setHubSize(30.0)
self.assertEqual(10.0, self.bicycleWheel.hubSize)
def test_set_number_of_spokes_when_new_number_of_spoke_is_greater_or_equal_to_8(self):
self.bicycleWheel.setNumberOfSpokes(10)
self.assertEqual(10, self.bicycleWheel.numberOfSpokes)
def test_set_number_of_spokes_when_new_number_of_spoke_is_less_than_to_8(self):
self.bicycleWheel.setNumberOfSpokes(6)
self.assertEqual(8, self.bicycleWheel.numberOfSpokes)
def test_get_angle_of_spokes_that_number_of_spokes_is_8(self):
self.assertEqual(math.pi/4, self.bicycleWheel.getAngleOfSpokes())
def test_get_angle_of_spokes_that_number_of_spokes_is_10(self):
self.bicycleWheel.setNumberOfSpokes(10)
self.assertEqual(math.pi/5, self.bicycleWheel.getAngleOfSpokes())
def test_get_position_of_spokes_at_1st_spoke_when_number_of_spokes_is_8(self):
positionList = self.bicycleWheel.getPositionOfSpokes()
self.assertEqual([160.0, 80.0, 90.0, 80.0], positionList[0])
def test_get_position_of_spokes_at_3rd_spoke_when_number_of_spokes_is_8(self):
positionList = self.bicycleWheel.getPositionOfSpokes()
self.assertEqual([80.0, 0.0, 80.0, 70.0], positionList[2])
def test_load_invalid_file(self):
self.assertRaises(IOError, self.bicycleWheel.loadFile('invalid.txt'))
def test_load_file_from_previous_save_with_valid_input(self):
self.bicycleWheel.setWheelSize(100.0)
self.bicycleWheel.setHubSize(10.0)
self.bicycleWheel.setNumberOfSpokes(12)
self.bicycleWheel.saveFile(self.bicycleWheel.FILE_PATH)
self.assertEqual([100.0, 10.0, 12], self.bicycleWheel.loadFile(self.bicycleWheel.FILE_PATH))
def test_get_default_minimum_wheel_size_allowance_with_default_hub_size_of_10(self):
self.assertEqual(40, self.bicycleWheel.getMinWheelSizeAllowance())
def test_get_minimum_wheel_size_allowance_when_setting_hub_to_15(self):
self.bicycleWheel.setHubSize(15)
self.assertEqual(60, self.bicycleWheel.getMinWheelSizeAllowance())
def test_get_default_maximum_hub_size_allowance_with_default_wheel_size_of_80(self):
self.assertEqual(20, self.bicycleWheel.getMaxHubSizeAllowance())
def test_get_maximum_hub_size_when_setting_wheel_size_to_100(self):
self.bicycleWheel.setWheelSize(100)
self.assertEqual(25, self.bicycleWheel.getMaxHubSizeAllowance())