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Update calculator.py #4

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206 changes: 115 additions & 91 deletions calculator.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,102 +3,126 @@

calculator = Tk()
calculator.title("CALCULATOR")
calculator.resizable(0, 1)#remove or change this in order to get different screen sizes
# calculator.resizable(0, 1)#remove or change this in order to get different screen sizes

class Application(Frame):
def __init__(self, master, *args, **kwargs):
Frame.__init__(self, master, *args, **kwargs)
self.createWidgets()

def replaceText(self, text):
self.display.delete(0, END)
self.display.insert(0, text)

def appendToDisplay(self, text):
self.entryText = self.display.get()
self.textLength = len(self.entryText)

if self.entryText == "0":
self.replaceText(text)
else:
self.display.insert(self.textLength, text)

def calculateExpression(self):#python's calculate function
self.expression = self.display.get()
self.expression = self.expression.replace("%", "/ 100")

try:
self.result = eval(self.expression)
self.replaceText(self.result)
except:
messagebox.showinfo("ERROR", "Invalid input", icon="warning", parent=calculator)

def clearText(self):#clears imput on pressing C on Calculator
self.replaceText("0")

def createWidgets(self):
self.display = Entry(self, font=("Helvetica", 16), borderwidth=0, relief=RAISED, justify=RIGHT)
self.display.insert(0, "0")
self.display.grid(row=0, column=0, columnspan=5)

#This is the First Row
self.sevenButton = Button(self, font=("Helvetica", 11), text="7", borderwidth=0, command=lambda: self.appendToDisplay("7"))
self.sevenButton.grid(row=1, column=0, sticky="NWNESWSE")

self.eightButton = Button(self, font=("Helvetica", 11), text="8", borderwidth=0, command=lambda: self.appendToDisplay("8"))
self.eightButton.grid(row=1, column=1, sticky="NWNESWSE")

self.nineButton = Button(self, font=("Helvetica", 11), text="9", borderwidth=0, command=lambda: self.appendToDisplay("9"))
self.nineButton.grid(row=1, column=2, sticky="NWNESWSE")

self.timesButton = Button(self, font=("Helvetica", 11), text="*", borderwidth=0, command=lambda: self.appendToDisplay("*"))
self.timesButton.grid(row=1, column=3, sticky="NWNESWSE")
calculator.geometry("320x240")
calculator.maxsize(320, 240)
calculator.minsize(320, 240)
calculator.config(bg="grey")

self.clearButton = Button(self, font=("Helvetica", 11), text="C", borderwidth=0, command=lambda: self.clearText())
self.clearButton.grid(row=1, column=4, sticky="NWNESWSE")

#This is the Second Row
self.fourButton = Button(self, font=("Helvetica", 11), text="4", borderwidth=0, command=lambda: self.appendToDisplay("4"))
self.fourButton.grid(row=2, column=0, sticky="NWNESWSE")

self.fiveButton = Button(self, font=("Helvetica", 11), text="5", borderwidth=0, command=lambda: self.appendToDisplay("5"))
self.fiveButton.grid(row=2, column=1, sticky="NWNESWSE")

self.sixButton = Button(self, font=("Helvetica", 11), text="6", borderwidth=0, command=lambda: self.appendToDisplay("6"))
self.sixButton.grid(row=2, column=2, sticky="NWNESWSE")

self.divideButton = Button(self, font=("Helvetica", 11), text="/", borderwidth=0, command=lambda: self.appendToDisplay("/"))
self.divideButton.grid(row=2, column=3, sticky="NWNESWSE")

self.percentageButton = Button(self, font=("Helvetica", 11), text="%", borderwidth=0, command=lambda: self.appendToDisplay("%"))
self.percentageButton.grid(row=2, column=4, sticky="NWNESWSE")

#This is the Third Row
self.oneButton = Button(self, font=("Helvetica", 11), text="1", borderwidth=0, command=lambda: self.appendToDisplay("1"))
self.oneButton.grid(row=3, column=0, sticky="NWNESWSE")

self.twoButton = Button(self, font=("Helvetica", 11), text="2", borderwidth=0, command=lambda: self.appendToDisplay("2"))
self.twoButton.grid(row=3, column=1, sticky="NWNESWSE")

self.threeButton = Button(self, font=("Helvetica", 11), text="3", borderwidth=0, command=lambda: self.appendToDisplay("3"))
self.threeButton.grid(row=3, column=2, sticky="NWNESWSE")

self.minusButton = Button(self, font=("Helvetica", 11), text="-", borderwidth=0, command=lambda: self.appendToDisplay("-"))
self.minusButton.grid(row=3, column=3, sticky="NWNESWSE")

self.equalsButton = Button(self, font=("Helvetica", 11), text="=", borderwidth=0, command=lambda: self.calculateExpression())
self.equalsButton.grid(row=3, column=4, sticky="NWNESWSE", rowspan=2)

#This is the Fourth Row
self.zeroButton = Button(self, font=("Helvetica", 11), text="0", borderwidth=0, command=lambda: self.appendToDisplay("0"))
self.zeroButton.grid(row=4, column=0, columnspan=2, sticky="NWNESWSE")
class Application(Frame):
def __init__(self, master, *args, **kwargs):
Frame.__init__(self, master, *args, **kwargs)
self.createWidgets()

def replaceText(self, text):
self.display.delete(0, END)
self.display.insert(0, text)

def appendToDisplay(self, text):
self.entryText = self.display.get()
self.textLength = len(self.entryText)

if self.entryText == "0":
self.replaceText(text)
else:
self.display.insert(self.textLength, text)

def calculateExpression(self): # python's calculate function
self.expression = self.display.get()
self.expression = self.expression.replace("%", "/ 100")

try:
self.result = eval(self.expression)
self.replaceText(self.result)
except:
messagebox.showinfo("ERROR", "Invalid input", icon="warning", parent=calculator)

def clearText(self): # clears imput on pressing C on Calculator
self.replaceText("0")

def createWidgets(self):
self.display = Entry(self, font=("Helvetica", 20), borderwidth=5, relief=SUNKEN, justify=RIGHT)
self.display.insert(0, "0")
self.display.grid(row=0, column=0, columnspan=5, padx=5, pady=5)

# This is the First Row
self.sevenButton = Button(self,bg='cyan', font=("Helvetica", 15), text="7", borderwidth=5,
command=lambda: self.appendToDisplay("7"))
self.sevenButton.grid(row=1, column=0, sticky="NWNESWSE")

self.eightButton = Button(self,bg='cyan', font=("Helvetica", 15), text="8", borderwidth=5,
command=lambda: self.appendToDisplay("8"))
self.eightButton.grid(row=1, column=1, sticky="NWNESWSE")

self.nineButton = Button(self, bg='cyan',font=("Helvetica", 15), text="9", borderwidth=5,
command=lambda: self.appendToDisplay("9"))
self.nineButton.grid(row=1, column=2, sticky="NWNESWSE")

self.timesButton = Button(self, font=("Helvetica", 15), text="*", borderwidth=5,
command=lambda: self.appendToDisplay("*"))
self.timesButton.grid(row=1, column=3, sticky="NWNESWSE")

self.clearButton = Button(self,bg='orange', font=("Helvetica", 15), text="C", borderwidth=5,
command=lambda: self.clearText())
self.clearButton.grid(row=1, column=4, sticky="NWNESWSE")

# This is the Second Row
self.fourButton = Button(self,bg='cyan', font=("Helvetica", 15), text="4", borderwidth=5,
command=lambda: self.appendToDisplay("4"))
self.fourButton.grid(row=2, column=0, sticky="NWNESWSE")

self.fiveButton = Button(self,bg='cyan', font=("Helvetica", 15), text="5", borderwidth=5,
command=lambda: self.appendToDisplay("5"))
self.fiveButton.grid(row=2, column=1, sticky="NWNESWSE")

self.sixButton = Button(self, bg='cyan',font=("Helvetica", 15), text="6", borderwidth=5,
command=lambda: self.appendToDisplay("6"))
self.sixButton.grid(row=2, column=2, sticky="NWNESWSE")

self.divideButton = Button(self, font=("Helvetica", 15), text="/", borderwidth=5,
command=lambda: self.appendToDisplay("/"))
self.divideButton.grid(row=2, column=3, sticky="NWNESWSE")

self.percentageButton = Button(self, font=("Helvetica", 15), text="%", borderwidth=5,
command=lambda: self.appendToDisplay("%"))
self.percentageButton.grid(row=2, column=4, sticky="NWNESWSE")

# This is the Third Row
self.oneButton = Button(self, bg='cyan',font=("Helvetica", 15), text="1", borderwidth=5,
command=lambda: self.appendToDisplay("1"))
self.oneButton.grid(row=3, column=0, sticky="NWNESWSE")

self.twoButton = Button(self,bg='cyan', font=("Helvetica", 15), text="2", borderwidth=5,
command=lambda: self.appendToDisplay("2"))
self.twoButton.grid(row=3, column=1, sticky="NWNESWSE")

self.threeButton = Button(self,bg='cyan', font=("Helvetica", 15), text="3", borderwidth=5,
command=lambda: self.appendToDisplay("3"))
self.threeButton.grid(row=3, column=2, sticky="NWNESWSE")

self.minusButton = Button(self, font=("Helvetica", 15), text="-", borderwidth=5,
command=lambda: self.appendToDisplay("-"))
self.minusButton.grid(row=3, column=3, sticky="NWNESWSE")

self.equalsButton = Button(self,bg='light green', font=("Helvetica", 15), text="=", borderwidth=5,
command=lambda: self.calculateExpression())
self.equalsButton.grid(row=3, column=4, sticky="NWNESWSE", rowspan=2)

# This is the Fourth Row
self.zeroButton = Button(self,bg='cyan', font=("Helvetica", 15), text="0", borderwidth=5,
command=lambda: self.appendToDisplay("0"))
self.zeroButton.grid(row=4, column=0, columnspan=2, sticky="NWNESWSE")

self.dotButton = Button(self, font=("Helvetica", 11), text=".", borderwidth=0, command=lambda: self.appendToDisplay("."))
self.dotButton.grid(row=4, column=2, sticky="NWNESWSE")
self.dotButton = Button(self, font=("Helvetica", 15), text=".", borderwidth=5,
command=lambda: self.appendToDisplay("."))
self.dotButton.grid(row=4, column=2, sticky="NWNESWSE")

self.plusButton = Button(self, font=("Helvetica", 11), text="+", borderwidth=0, command=lambda: self.appendToDisplay("+"))
self.plusButton.grid(row=4, column=3, sticky="NWNESWSE")
self.plusButton = Button(self, font=("Helvetica", 15), text="+", borderwidth=5,
command=lambda: self.appendToDisplay("+"))
self.plusButton.grid(row=4, column=3, sticky="NWNESWSE")


app = Application(calculator).grid()
app = Application(calculator).grid()
calculator.mainloop()