Source code for timelinelib.wxgui.components.numctrl
# Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Rickard Lindberg, Roger Lindberg
#
# This file is part of Timeline.
#
# Timeline is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Timeline is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Timeline. If not, see <http://www.gnu.org/licenses/>.
import wx
[docs]class NumCtrl(wx.Panel):
[docs] def __init__(self, parent, size=(-1, -1)):
wx.Panel.__init__(self, parent)
self._CreateGui(size)
def _CreateGui(self, size):
sizer = wx.BoxSizer(wx.HORIZONTAL)
self.text = wx.TextCtrl(self, size=size)
self.spin = wx.SpinButton(self, style=wx.SP_VERTICAL, size=(-1, self.text.GetSize()[1] + 5))
sizer.Add(self.text, proportion=1, flag=wx.ALIGN_CENTER_VERTICAL)
sizer.Add(self.spin, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL)
self.Bind(wx.EVT_TEXT, self._OnText, self.text)
self.Bind(wx.EVT_CHAR, self._OnKeyPress, self.text)
self.Bind(wx.EVT_SPIN_UP, self._OnSpinUp, self.spin)
self.Bind(wx.EVT_SPIN_DOWN, self._OnSpinDown, self.spin)
self.SetSizerAndFit(sizer)
[docs] def SetValue(self, value):
self.text.SetValue(value)
[docs] def GetValue(self):
return self.text.GetValue()
def _OnKeyPress(self, event):
if self.ValidKeyCode(event.GetKeyCode()):
event.Skip()
def _OnText(self, event):
event.Skip()
def _OnSpinUp(self, event):
self._Spin(1)
event.Skip()
def _OnSpinDown(self, event):
self._Spin(-1)
event.Skip()
def _Spin(self, value):
self.SetValue(str(int(self.GetValue()) + value))
[docs] def ValidKeyCode(self, keycode):
"""Allow digits, and a minus sign in the first position."""
if IsAscci(keycode):
if IsMinus(keycode):
if self.MinusIsOk():
return True
else:
return False
elif IsNotAlpha(keycode):
return True
else:
return False
return True
[docs] def MinusIsOk(self):
return '-' not in self.GetValue() and self.GetInsertionPoint() == 0
[docs]def IsNotAlpha(keycode):
return not chr(keycode).isalpha()
[docs]def IsMinus(keycode):
return chr(keycode) == '-'
[docs]def IsAscci(keycode):
return keycode < 255