Package Gnumed :: Package timelinelib :: Package wxgui :: Package components :: Module numctrl |
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# Source Code for Module Gnumed.timelinelib.wxgui.components.numctrl

     1  # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018  Rickard Lindberg, Roger Lindberg
     2  #
     3  # This file is part of Timeline.
     4  #
     5  # Timeline is free software: you can redistribute it and/or modify
     6  # it under the terms of the GNU General Public License as published by
     7  # the Free Software Foundation, either version 3 of the License, or
     8  # (at your option) any later version.
     9  #
    10  # Timeline is distributed in the hope that it will be useful,
    11  # but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13  # GNU General Public License for more details.
    14  #
    15  # You should have received a copy of the GNU General Public License
    16  # along with Timeline.  If not, see <http://www.gnu.org/licenses/>.
    17
    18
    19  import wx
    20
    21
    22 -class NumCtrl(wx.Panel):
    23
    24 -    def __init__(self, parent, size=(-1, -1)):
    25          wx.Panel.__init__(self, parent)
    26          self._CreateGui(size)
    27
    28 -    def _CreateGui(self, size):
    29          sizer = wx.BoxSizer(wx.HORIZONTAL)
    30          self.text = wx.TextCtrl(self, size=size)
    31          self.spin = wx.SpinButton(self, style=wx.SP_VERTICAL, size=(-1, self.text.GetSize()[1] + 5))
    32          sizer.Add(self.text, proportion=1, flag=wx.ALIGN_CENTER_VERTICAL)
    33          sizer.Add(self.spin, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL)
    34          self.Bind(wx.EVT_CHAR, self._OnKeyPress, self.text)
    35          self.Bind(wx.EVT_SPIN_UP, self._OnSpinUp, self.spin)
    36          self.Bind(wx.EVT_SPIN_DOWN, self._OnSpinDown, self.spin)
    37          self.SetSizerAndFit(sizer)
    38
    39 -    def SetValue(self, value):
    40          self.text.SetValue(value)
    41
    42 -    def GetValue(self):
    43          return self.text.GetValue()
    44
    45 -    def _OnKeyPress(self, event):
    46          if self.ValidKeyCode(event.GetKeyCode()):
    47              event.Skip()
    48
    49 -    def _OnSpinUp(self, event):
    50          self._Spin(1)
    51
    52 -    def _OnSpinDown(self, event):
    53          self._Spin(-1)
    54
    55 -    def _Spin(self, value):
    56          self.SetValue(str(int(self.GetValue()) + value))
    57
    58 -    def ValidKeyCode(self, keycode):
    59          """Allow digits, and a minus sign in the first position."""
    60          if IsAscci(keycode):
    61              if IsMinus(keycode):
    62                  if self.MinusIsOk():
    63                      return True
    64                  else:
    65                      return False
    66              elif IsNotAlpha(keycode):
    67                  return True
    68              else:
    69                  return False
    70          return True
    71
    72 -    def MinusIsOk(self):
    73          return '-' not in self.GetValue() and self.GetInsertionPoint() == 0
    74
    75
    76 -def IsNotAlpha(keycode):
    77      return not chr(keycode).isalpha()
    78
    79
    80 -def IsMinus(keycode):
    81      return chr(keycode) == '-'
    82
    83
    84 -def IsAscci(keycode):
    85      return keycode < 255
    86