Using wxPython and the Boa Constructor, a VB/Delphi like IDE and Visual Builder, this little calculator was a breeze to make. Boa did 90% of the code generation, and I simply added code to each button click event to make the calculations work. I wish every project would go that easy. Take a look at the commented code.
Simple Windows GUI Calculator (Python)
# wxCalc1 a simple GUI calculator using wxPython
# created with the Boa Constructor which generates all the GUI components
# all I had to do is add some code for each button click event
# Boa free from: http://boa-constructor.sourceforge.net/
# note that boa-constructor-0.3.1.win32.exe
# still uses wxPythonWIN32-2.4.2.4-Py23.exe
# but is expected to work with wxPython version 2.5 soon
# tested with Python23 vegaseat 26feb2005
from wxPython.wx import *
# some Boa generated global IDs ...
[wxID_WXFRAME1, wxID_WXFRAME1BTN0, wxID_WXFRAME1BTN1, wxID_WXFRAME1BTN2,
wxID_WXFRAME1BTN3, wxID_WXFRAME1BTN4, wxID_WXFRAME1BTN5, wxID_WXFRAME1BTN6,
wxID_WXFRAME1BTN7, wxID_WXFRAME1BTN8, wxID_WXFRAME1BTN9,
wxID_WXFRAME1BTNCLEAR, wxID_WXFRAME1BTNDIV, wxID_WXFRAME1BTNDOT,
wxID_WXFRAME1BTNEQUAL, wxID_WXFRAME1BTNMINUS, wxID_WXFRAME1BTNMULTI,
wxID_WXFRAME1BTNPLUS, wxID_WXFRAME1EDIT,
] = map(lambda _init_ctrls: wxNewId(), range(19))
class wxFrame1(wxFrame):
#startregion, below this marker is Boa generated code do not edit!!!
def _init_ctrls(self, prnt):
# generated method, don't edit
wxFrame.__init__(self, id=wxID_WXFRAME1, name='', parent=prnt,
pos=wxPoint(306, 270), size=wxSize(266, 265),
style=wxDEFAULT_FRAME_STYLE, title='Calculator1')
self.SetClientSize(wxSize(258, 225))
self.SetBackgroundColour(wxColour(0, 128, 0))
self.btn1 = wxButton(id=wxID_WXFRAME1BTN1, label='1', name='btn1',
parent=self, pos=wxPoint(16, 136), size=wxSize(32, 32), style=0)
EVT_BUTTON(self.btn1, wxID_WXFRAME1BTN1, self.OnBtn1Button)
self.btn2 = wxButton(id=wxID_WXFRAME1BTN2, label='2', name='btn2',
parent=self, pos=wxPoint(64, 136), size=wxSize(32, 32), style=0)
EVT_BUTTON(self.btn2, wxID_WXFRAME1BTN2, self.OnBtn2Button)
self.btn3 = wxButton(id=wxID_WXFRAME1BTN3, label='3', name='btn3',
parent=self, pos=wxPoint(112, 136), size=wxSize(32, 32), style=0)
EVT_BUTTON(self.btn3, wxID_WXFRAME1BTN3, self.OnBtn3Button)
self.btn4 = wxButton(id=wxID_WXFRAME1BTN4, label='4', name='btn4',
parent=self, pos=wxPoint(16, 96), size=wxSize(32, 32), style=0)
EVT_BUTTON(self.btn4, wxID_WXFRAME1BTN4, self.OnBtn4Button)
self.btn5 = wxButton(id=wxID_WXFRAME1BTN5, label='5', name='btn5',
parent=self, pos=wxPoint(64, 96), size=wxSize(32, 32), style=0)
EVT_BUTTON(self.btn5, wxID_WXFRAME1BTN5, self.OnBtn5Button)
self.btn6 = wxButton(id=wxID_WXFRAME1BTN6, label='6', name='btn6',
parent=self, pos=wxPoint(112, 96), size=wxSize(32, 32), style=0)
EVT_BUTTON(self.btn6, wxID_WXFRAME1BTN6, self.OnBtn6Button)
self.btn7 = wxButton(id=wxID_WXFRAME1BTN7, label='7', name='btn7',
parent=self, pos=wxPoint(16, 56), size=wxSize(32, 32), style=0)
EVT_BUTTON(self.btn7, wxID_WXFRAME1BTN7, self.OnBtn7Button)
self.btn8 = wxButton(id=wxID_WXFRAME1BTN8, label='8', name='btn8',
parent=self, pos=wxPoint(64, 56), size=wxSize(32, 32), style=0)
EVT_BUTTON(self.btn8, wxID_WXFRAME1BTN8, self.OnBtn8Button)
self.btn9 = wxButton(id=wxID_WXFRAME1BTN9, label='9', name='btn9',
parent=self, pos=wxPoint(112, 56), size=wxSize(32, 32), style=0)
EVT_BUTTON(self.btn9, wxID_WXFRAME1BTN9, self.OnBtn9Button)
self.btn0 = wxButton(id=wxID_WXFRAME1BTN0, label='0', name='btn0',
parent=self, pos=wxPoint(16, 176), size=wxSize(32, 32), style=0)
EVT_BUTTON(self.btn0, wxID_WXFRAME1BTN0, self.OnBtn0Button)
self.btnDot = wxButton(id=wxID_WXFRAME1BTNDOT, label='.', name='btnDot',
parent=self, pos=wxPoint(64, 176), size=wxSize(32, 32), style=0)
EVT_BUTTON(self.btnDot, wxID_WXFRAME1BTNDOT, self.OnBtnDotButton)
self.btnEqual = wxButton(id=wxID_WXFRAME1BTNEQUAL, label='=',
name='btnEqual', parent=self, pos=wxPoint(112, 176),
size=wxSize(32, 32), style=0)
EVT_BUTTON(self.btnEqual, wxID_WXFRAME1BTNEQUAL, self.OnBtnEqualButton)
self.edit = wxTextCtrl(id=wxID_WXFRAME1EDIT, name='edit', parent=self,
pos=wxPoint(16, 16), size=wxSize(224, 24), style=0, value='')
self.btnPlus = wxButton(id=wxID_WXFRAME1BTNPLUS, label='+',
name='btnPlus', parent=self, pos=wxPoint(160, 56), size=wxSize(32,
32), style=0)
EVT_BUTTON(self.btnPlus, wxID_WXFRAME1BTNPLUS, self.OnBtnPlusButton)
self.btnMinus = wxButton(id=wxID_WXFRAME1BTNMINUS, label='-',
name='btnMinus', parent=self, pos=wxPoint(160, 96),
size=wxSize(32, 32), style=0)
EVT_BUTTON(self.btnMinus, wxID_WXFRAME1BTNMINUS, self.OnBtnMinusButton)
self.btnMulti = wxButton(id=wxID_WXFRAME1BTNMULTI, label='*',
name='btnMulti', parent=self, pos=wxPoint(160, 136),
size=wxSize(32, 32), style=0)
EVT_BUTTON(self.btnMulti, wxID_WXFRAME1BTNMULTI, self.OnBtnMultiButton)
self.btnDiv = wxButton(id=wxID_WXFRAME1BTNDIV, label='/', name='btnDiv',
parent=self, pos=wxPoint(160, 176), size=wxSize(32, 32), style=0)
EVT_BUTTON(self.btnDiv, wxID_WXFRAME1BTNDIV, self.OnBtnDivButton)
self.btnClear = wxButton(id=wxID_WXFRAME1BTNCLEAR, label='C',
name='btnClear', parent=self, pos=wxPoint(208, 56),
size=wxSize(32, 32), style=0)
self.btnClear.SetToolTipString('btnClear')
EVT_BUTTON(self.btnClear, wxID_WXFRAME1BTNCLEAR, self.OnBtnClearButton)
def __init__(self, parent):
self._init_ctrls(parent)
#endregion, above this marker is Boa generated code, do not edit!!!
# now respond to all the button click events ...
def OnBtn0Button(self, event):
val = '0'
# get existing edit box text
txt = self.edit.GetValue()
# append text
txt = txt + val
# update edit box text
self.edit.SetValue(txt)
def OnBtn1Button(self, event):
val = '1'
txt = self.edit.GetValue()
txt = txt + val
self.edit.SetValue(txt)
def OnBtn2Button(self, event):
val = '2'
txt = self.edit.GetValue()
txt = txt + val
self.edit.SetValue(txt)
def OnBtn3Button(self, event):
val = '3'
txt = self.edit.GetValue()
txt = txt + val
self.edit.SetValue(txt)
def OnBtn4Button(self, event):
val = '4'
txt = self.edit.GetValue()
txt = txt + val
self.edit.SetValue(txt)
def OnBtn5Button(self, event):
val = '5'
txt = self.edit.GetValue()
txt = txt + val
self.edit.SetValue(txt)
def OnBtn6Button(self, event):
val = '6'
txt = self.edit.GetValue()
txt = txt + val
self.edit.SetValue(txt)
def OnBtn7Button(self, event):
val = '7'
txt = self.edit.GetValue()
txt = txt + val
self.edit.SetValue(txt)
def OnBtn8Button(self, event):
val = '8'
txt = self.edit.GetValue()
txt = txt + val
self.edit.SetValue(txt)
def OnBtn9Button(self, event):
val = '9'
txt = self.edit.GetValue()
txt = txt + val
self.edit.SetValue(txt)
def OnBtnDotButton(self, event):
val = '.'
txt = self.edit.GetValue()
txt = txt + val
self.edit.SetValue(txt)
def OnBtnEqualButton(self, event):
txt = self.edit.GetValue()
# needs to contain a float so eg. 3/5 is 3/5.0
# otherwise division 3/5 would result in zero
if '/' in txt:
if '.' not in txt:
txt = txt + '.0'
# now evaluate the math string
txt = repr(eval(txt))
# and show result in edit box
self.edit.SetValue(txt)
def OnBtnPlusButton(self, event):
val = '+'
txt = self.edit.GetValue()
txt = txt + val
self.edit.SetValue(txt)
def OnBtnMinusButton(self, event):
val = '-'
txt = self.edit.GetValue()
txt = txt + val
self.edit.SetValue(txt)
def OnBtnMultiButton(self, event):
val = '*'
txt = self.edit.GetValue()
txt = txt + val
self.edit.SetValue(txt)
def OnBtnDivButton(self, event):
val = '/'
txt = self.edit.GetValue()
txt = txt + val
self.edit.SetValue(txt)
def OnBtnClearButton(self, event):
self.edit.SetValue('')
# -------------------- end of class wxFrame1 ----------------------
def create(parent):
return wxFrame1(parent)
class BoaApp(wxApp):
def OnInit(self):
wxInitAllImageHandlers()
self.main = create(None)
self.main.Show()
self.SetTopWindow(self.main)
return True
def main():
application = BoaApp(0)
application.MainLoop()
if __name__ == '__main__':
main()
vegaseat 1,735 DaniWeb's Hypocrite Team Colleague
This code works fine with Python24. It has been modified to form a simple application, so don't try to open it with Boa.
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