import pygtk,math,string
pygtk.require('2.0')
import gtk
class mainwin():
def __init__(self): #This function autorun at assign object to class >> "win=mainwin()"
self.mwin=gtk.Window()
self.mwin.set_size_request(300,270)
self.mwin.set_resizable(False)
self.mwin.set_title('Calculator')
#=============== Create menu bar and popups ===============
self.menus=(
("/_Calculator",None,None,0,"<Branch>"),
("/Calculator/_CE","<Control>C",self.ce,0,"<StockItem>",gtk.STOCK_CANCEL),
("/Calculator/C_lear","<Control>L",self.clear,0,"<StockItem>",gtk.STOCK_CLEAR),
("/Calculator/_Bksp","<Backspace>",self.bksp,0,"<StockItem>",gtk.STOCK_GO_BACK ),
("/Calculator/sep1",None,None,0,"<Separator>"),
("/Calculator/_Quit","<Control>Q",gtk.main_quit,0,"<StockItem>",gtk.STOCK_QUIT),
)
#======== Create map of buttons and clicked event =========
ButtonsProp=(
(("Bksp",self.bksp) ,("Clear",self.clear) ,("CE",self.ce)),
(("7",self.calc_numbers) ,("8",self.calc_numbers) ,(" 9 ",self.calc_numbers) ,(" / " ,self.calc_operators),("sqrt",self.sqrt)),
(("4" ,self.calc_numbers) ,("5",self.calc_numbers) ,(" 6 ",self.calc_numbers) ,(" * ",self.calc_operators) ,("%" ,self.percent)),
(("1",self.calc_numbers) ,("2" ,self.calc_numbers),(" 3 " ,self.calc_numbers),(" - ",self.calc_operators) ,("1/x",self.one_div_x)),
(("0",self.calc_numbers) ,("+/-",self.change_sign),(" . ",self.dot) ,(" + " ,self.calc_operators),("=",self.do_equal))
)
#================ Create entry and buttons ================
self.accelg=gtk.AccelGroup()
itemfac=gtk.ItemFactory(gtk.MenuBar,"<main>")
itemfac.create_items(self.menus)
self.mwin.add_accel_group(self.accelg)
self.itemfac=itemfac
self.menubar=itemfac.get_widget("<main>")
self.vb1=gtk.VBox(0,0)
self.vb1.pack_start(self.menubar,0,0,0)
self.mwin.add(self.vb1)
self.mtext=gtk.Entry()
self.mtext.set_text("0")
self.mtext.set_editable(False)
self.hb1=gtk.HBox()
self.hb1.pack_start(self.mtext,1,1,4)
self.vb1.pack_start(self.hb1,0,0,3)
self.mtable=gtk.Table(4,3)
self.mtable.set_row_spacings(3)
self.mtable.set_col_spacings(3)
x=y=0
for i in ButtonsProp:
for j in i:
btn=gtk.Button(j[0])
btn.connect("clicked",j[1])
self.mtable.attach(btn,x,x+1,y,y+1)
x+=1
print j[0] ," ",
x=0
y+=1
print ""
self.hb2=gtk.HBox()
self.hb2.pack_start(self.mtable,1,1,4)
self.vb1.pack_start(self.hb2,1,1,2)
#============= set flags =============
self.zero=True
self.equal=False
self.oldnum=0
self.operator=""
# { The End }
def do_equal(self,widget):
if self.oldnum != 0:
if not self.equal: self.currentnum=string.atof(self.mtext.get_text())
if self.operator==" / ":
if self.currentnum==0: return 1
self.mtext.set_text(str(self.oldnum/self.currentnum));self.oldnum=string.atof(self.mtext.get_text())
elif self.operator==" * ":
self.mtext.set_text(str(self.oldnum*self.currentnum));self.oldnum=string.atof(self.mtext.get_text())
elif self.operator==" - ":
self.mtext.set_text(str(self.oldnum-self.currentnum));self.oldnum=string.atof(self.mtext.get_text())
elif self.operator==" + ":
self.mtext.set_text(str(self.oldnum+self.currentnum));self.oldnum=string.atof(self.mtext.get_text())
self.clear_dot_zero()
self.equal=True
def calc_numbers(self,widget):
if self.zero==True :
self.mtext.set_text("")
self.zero=False
if self.mtext.get_text()=="0": self.mtext.set_text("")
self.mtext.set_text(self.mtext.get_text()+ str(string.atoi( widget.get_label())))
def calc_operators(self,widget):
self.oldnum=string.atof(self.mtext.get_text())
self.operator=widget.get_label()
self.zero=True
self.equal=False
def change_sign(self,widget):
self.mtext.set_text(str(string.atof(self.mtext.get_text())* -1))
self.clear_dot_zero()
def dot(self,widget):
if self.zero==True :
self.oldnum=string.atof(self.mtext.get_text())
self.mtext.set_text("0")
self.zero=False
if string.find(self.mtext.get_text(),".")<=0:
self.mtext.set_text(self.mtext.get_text()+".")
self.zero=False
def sqrt(self,widget):
self.mtext.set_text(str(math.sqrt(string.atof(self.mtext.get_text()))))
self.clear_dot_zero()
self.zero=True
def percent(self,widget):
if (self.oldnum != 0)and(string.atof(self.mtext.get_text()) != 0):
self.mtext.set_text(str(string.atof(self.mtext.get_text())*(self.oldnum*0.01)))
self.clear_dot_zero()
def one_div_x(self,widget):
if string.atof(self.mtext.get_text()) != 0:
self.mtext.set_text(str(1/string.atof(self.mtext.get_text())))
self.clear_dot_zero()
self.zero=True
def bksp(self,widget,e=0):
self.mtext.set_text(self.mtext.get_text()[0:-1])
if self.mtext.get_text()=="":
self.mtext.set_text("0")
self.zero=True
def clear(self,widget,e=0):
self.mtext.set_text("0")
self.zero=True
def ce(self,widget,e=0):
self.mtext.set_text("0")
self.operator=""
self.oldnum=0
self.zero=True
def clear_dot_zero(self):
if self.mtext.get_text()[-2:]==".0":
self.mtext.set_text(self.mtext.get_text()[0:-2])
def main(self):
self.mwin.connect("destroy",gtk.main_quit)
self.mwin.show_all()
gtk.main()
if __name__=='__main__':
win=mainwin()
win.main()
