screenlets.options.number_option

Package screenlets :: Package options :: Module number_option |
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# Source Code for Module screenlets.options.number_option

     1  #
     2  # Copyright (C) 2009 Martin Owens (DoctorMO) <doctormo@gmail.com>
     3  #
     4  # This program is free software: you can redistribute it and/or modify
     5  # it under the terms of the GNU General Public License as published by
     6  # the Free Software Foundation, either version 3 of the License, or
     7  # (at your option) any later version.
     8  #
     9  # This program is distributed in the hope that it will be useful,
    10  # but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12  # GNU General Public License for more details.
    13  #
    14  # You should have received a copy of the GNU General Public License
    15  # along with this program.  If not, see <http://www.gnu.org/licenses/>.
    16  #
    17  """
    18  Integer and Float options, these classes will display a spin box.
    19  """
    20
    21  import gtk, sys
    22
    23  from screenlets.options import _
    24  from base import Option
    25
    26 -class IntOption(Option):
    27      """An Option for integer options."""
    28      min = -100000
    29      max = 100000
    30      increment = 1
    31
    32 -    def on_import(self, strvalue):
    33          """When a integer is imported from the config."""
    34          try:
    35              if strvalue[0]=='-':
    36                  return int(float(strvalue[1:])) * -1
    37              return int(float(strvalue))
    38          except:
    39              sys.stderr.write(_("Error during on_import - option: %s.\n") % self.name)
    40              return 0
    41
    42          return int(strvalue)
    43
    44 -    def on_export(self, value):
    45          """When a string is exported to the config."""
    46          return str(value)
    47
    48 -    def generate_widget(self, value):
    49          """Generate a spin button for integer options"""
    50          self.widget = gtk.SpinButton()
    51          self.widget.set_increments(self.increment, int(self.max / self.increment))
    52          if self.min != None and self.max != None:
    53              self.widget.set_range(self.min, self.max)
    54          self.set_value(value)
    55          if self.realtime:
    56              self.widget.connect("value-changed", self.has_changed)
    57          return self.widget
    58
    59 -    def set_value(self, value):
    60          """Set the int value, including the value of the widget."""
    61          self.value = value
    62          self.widget.set_value(value)
    63
    64 -    def has_changed(self, widget):
    65          """Executed when the widget event kicks off."""
    66          self.value = int(self.widget.get_value())
    67          super(IntOption, self).has_changed()
    68
    69
    70 -class FloatOption(IntOption):
    71      """An option for float numbers."""
    72      digits = 0
    73
    74 -    def on_import (self, strvalue):
    75          """Called when FloatOption gets imported. Converts str to float."""
    76          if strvalue[0]=='-':
    77              return float(strvalue[1:]) * -1.0
    78          return float(strvalue)
    79
    80 -    def generate_widget(self, value):
    81          """Do the same as int but add the number of ditgits"""
    82          super(FloatOption, self).generate_widget(value)
    83          self.widget.set_digits(self.digits)
    84          return self.widget
    85
    86 -    def has_changed(self, widget):
    87          """Executed when the widget event kicks off."""
    88          self.value = float(self.widget.get_value())
    89          super(IntOption, self).has_changed()
    90