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Showing posts with label python-wxPython. Show all posts
Showing posts with label python-wxPython. Show all posts
from __future__ import division # So that 8/3 will be 2.6666 and not 2
import wx
from math import * # So we can evaluate "sqrt(8)"
class Calculator(wx.Dialog):
'''Main calculator dialog'''
def __init__(self):
wx.Dialog.__init__(self, None, -1, "Calculator")
sizer = wx.BoxSizer(wx.VERTICAL) # Main vertical sizer
# ____________v
self.display = wx.ComboBox(self, -1) # Current calculation
sizer.Add(self.display, 0, wx.EXPAND) # Add to main sizer
# [7][8][9][/]
# [4][5][6][*]
# [1][2][3][-]
# [0][.][C][+]
gsizer = wx.GridSizer(4, 4)
for row in (("7", "8", "9", "/"),
("4", "5", "6", "*"),
("1", "2", "3", "-"),
("0", ".", "C", "+")):
for label in row:
b = wx.Button(self, -1, label)
gsizer.Add(b)
self.Bind(wx.EVT_BUTTON, self.OnButton, b)
sizer.Add(gsizer, 1, wx.EXPAND)
# [ = ]
b = wx.Button(self, -1, "=")
self.Bind(wx.EVT_BUTTON, self.OnButton, b)
sizer.Add(b, 0, wx.EXPAND)
self.equal = b
# Set sizer and center
self.SetSizer(sizer)
sizer.Fit(self)
self.CenterOnScreen()
def OnButton(self, evt):
'''Handle button click event'''
# Get title of clicked button
label = evt.GetEventObject().GetLabel()
if label == "=": # Calculate
try:
compute = self.display.GetValue()
# Ignore empty calculation
if not compute.strip():
return
# Calculate result
result = eval(compute)
# Add to history
self.display.Insert(compute, 0)
# Show result
self.display.SetValue(str(result))
except Exception, e:
wx.LogError(str(e))
return
elif label == "C": # Clear
self.display.SetValue("")
else: # Just add button text to current calculation
self.display.SetValue(self.display.GetValue() + label)
self.equal.SetFocus() # Set the [=] button in focus
if __name__ == "__main__":
# Run the application
app = wx.App()
dlg = Calculator()
dlg.ShowModal()
dlg.Destroy()
The wx.GridSizer lays out widgets in two dimensional table. Each cell within the table has the same size.
wx.GridSizer(int rows=1, int cols=0, int vgap=0, int hgap=0)
wx.html.HtmlWindow to provide help in our application. We can create a standalone window or we can create a window that is going to be a part of the application. The following script will create a help window using the latter idea.
wx.ComboBox is a combination of a single line text field, a button with a down arrow image and a listbox. When you press the button, a listbox appears.
A wx.StaticText widget displays one or more lines of read-only text.
import wx
class Example(wx.Frame):
def __init__(self, *args, **kw):
super(Example, self).__init__(*args, **kw)
self.InitUI()
def InitUI(self):
txt1 = '''I'm giving up the ghost of love
in the shadows cast on devotion
She is the one that I adore
creed of my silent suffocation
Break this bittersweet spell on me
lost in the arms of destiny'''
txt2 = '''There is something in the way
You're always somewhere else
Feelings have deserted me
To a point of no return
I don't believe in God
But I pray for you'''
pnl = wx.Panel(self)
vbox = wx.BoxSizer(wx.VERTICAL)
st1 = wx.StaticText(pnl, label=txt1, style=wx.ALIGN_CENTRE)
st2 = wx.StaticText(pnl, label=txt2, style=wx.ALIGN_CENTRE)
vbox.Add(st1, flag=wx.ALL, border=5)
vbox.Add(st2, flag=wx.ALL, border=5)
pnl.SetSizer(vbox)
self.SetSize((250, 260))
self.SetTitle('Bittersweet')
self.Centre()
self.Show(True)
def main():
ex = wx.App()
Example(None)
ex.MainLoop()
if __name__ == '__main__':
main()
A wx.StaticText widget displays one or more lines of read-only text.
import wx
class Example(wx.Frame):
def __init__(self, *args, **kw):
super(Example, self).__init__(*args, **kw)
self.InitUI()
def InitUI(self):
txt1 = '''I'm giving up the ghost of love
in the shadows cast on devotion
She is the one that I adore
creed of my silent suffocation
Break this bittersweet spell on me
lost in the arms of destiny'''
txt2 = '''There is something in the way
You're always somewhere else
Feelings have deserted me
To a point of no return
I don't believe in God
But I pray for you'''
pnl = wx.Panel(self) #create panel
vbox = wx.BoxSizer(wx.VERTICAL)
#This is a string to be shown in the wx.StaticText widget.
#wx.StaticText(variable panel,lable,style)
st1 = wx.StaticText(pnl, label=txt1, style=wx.ALIGN_CENTRE)
st2 = wx.StaticText(pnl, label=txt2, style=wx.ALIGN_CENTRE)
vbox.Add(st1, flag=wx.ALL, border=5)
vbox.Add(st2, flag=wx.ALL, border=5)
pnl.SetSizer(vbox)
self.SetSize((250, 260))
self.SetTitle('Bittersweet')
self.Centre()
self.Show(True)
def main():
ex = wx.App()
Example(None)
ex.MainLoop()
if __name__ == '__main__':
main()
