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# textentrydialog.py
# Simple dialog for entering a string.
# Note: Not based on wxPython's TextEntryDialog.
from dialog import Dialog
from textbox import TextBox
from label import Label
from keys import keys
import string
class TextEntryDialog(Dialog):
def __init__(self, parent, title="Enter some text", prompt="Enter some text",
default="", cancel_button=1):
self.prompt = prompt
self.default = default
Dialog.__init__(self, parent, title, cancel_button=cancel_button)
def Body(self):
label = Label(self, self.prompt)
self.AddComponent(label, expand='h', border=7)
self.text = TextBox(self, size=(100,25), process_enter=1)
self.text.SetValue(self.default)
self.text.OnChar = self.OnTextBoxChar
self.AddComponent(self.text, expand='h', border=5)
def OnTextBoxChar(self, event=None):
# pressing Enter in the TextBox is the same as clicking OK
if event.GetKeyCode() == keys.enter:
self.OnClickOKButton(event)
else:
event.Skip()
def GetValue(self):
return self.text.GetValue()
class IntegerInputDialog(TextEntryDialog):
def __init__(self, parent, title='Enter some text',
prompt='Enter some text', default='', cancel_button=1):
TextEntryDialog.__init__(self, parent, title=title,
prompt=prompt, default=str(default),
cancel_button=cancel_button)
def GetValue(self):
try:
val=TextEntryDialog.GetValue(self)
except ValueError:
return None
try:
int_val=eval("int("+val+")")
except (SyntaxError,NameError):
int_val=None
return int_val
def OnCharHook(self, event):
key = event.KeyCode()
if key == wx.WXK_ESCAPE:
self.OnClickCancelButton()
if key < wx.WXK_SPACE or key == wx.WXK_DELETE or key > 255:
event.Skip()
return
good_chars=string.digits+'+*-()'
if chr(key) in good_chars:
event.Skip()
return
if not wx.Validator_IsSilent():
wx.Bell()
# Returning without calling even.Skip eats the event before it
# gets to the text control
return
def Validate(self):
val = TextEntryDialog.GetValue(self) # make sure the get a string
good_chars=string.digits+'+*-()'
for x in val:
if x not in good_chars:
return False
try:
int_val=eval("int("+val+")")
except (SyntaxError,NameError):
Error("Syntax Error")
return False
return True
def Input_Integer(title,
prompt, default=None,parent=None):
a=IntegerInputDialog(parent,title,prompt,default)
result=a.ShowModal()
if result=='ok':
r=a.GetValue()
else:
r=None
a.Destroy()
return r
class FloatInputDialog(TextEntryDialog):
def __init__(self, parent, title='Enter some text',
prompt='Enter some text', default=None, cancel_button=1):
TextEntryDialog.__init__(self, parent, title=title,
prompt=prompt, default=str(default),
cancel_button=cancel_button)
def GetValue(self):
try:
val=TextEntryDialog.GetValue(self)
except ValueError:
return None
try:
float_val=eval("float("+val+")")
except SyntaxError:
float_val=None
return float_val
def Validate(self):
val = TextEntryDialog.GetValue(self) # make sure the get a string
try:
float_val=eval("float("+val+")")
except (SyntaxError,NameError):
Error("Syntax Error")
return False
return True
def Input_Float(title,
prompt, default=None,parent=None):
a=FloatInputDialog(parent,title,prompt,default)
result=a.ShowModal()
if result=='ok':
r=a.GetValue()
else:
r=None
a.Destroy()
return r
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