# -*- coding: utf-8 -*-

from PyQt4 import QtCore, QtGui
from calculate_ui import Ui_Dialog
from math import *
from qgis.core import *
class Dialog(QtGui.QDialog, Ui_Dialog):
    def __init__(self, iface):
      QtGui.QDialog.__init__(self)
      self.iface = iface
      self.setupUi(self)
      self.ui = Ui_Dialog()
      self.ui.setupUi(self)
      # Validations
      tempValidator = QtGui.QDoubleValidator()
      tempValidator.setNotation(QtGui.QDoubleValidator.StandardNotation)
      self.ui.at.setValidator(tempValidator)
      self.ui.Rt.setValidator(tempValidator)
      self.ui.hesaplak.clicked.connect(self.calc)
      self.ui.temizlek.clicked.connect(self.silk)
    def derece(degrees):
        return degrees*((2*pi)/400)
    def calc(self):
      a = float(self.ui.at.text())
      R = float(self.ui.Rt.text())
      T=R*tan(derece(a/2))
      L=(2*pi*R*a)/400
      BS=(R/cos(derece(a/2)))-R
      self.ui.Tt.setText(str(T))
      self.ui.Lt.setText(str(L))
      self.ui.BSt.setText(str(BS))
    def silk(self):
      self.ui.at.clear()
      self.ui.Rt.clear()
      self.ui.Tt.clear()
      self.ui.Lt.clear()
      self.ui.BSt.clear()