1 #!/usr/bin/env python

     2 # -*- coding: utf-8 -*-

     3 

     4 #This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor

     5 #based on the plcopen standard. 

     6 #

     7 #Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

     8 #

     9 #See COPYING file for copyrights details.

    10 #

    11 #This library is free software; you can redistribute it and/or

    12 #modify it under the terms of the GNU General Public

    13 #License as published by the Free Software Foundation; either

    14 #version 2.1 of the License, or (at your option) any later version.

    15 #

    16 #This library is distributed in the hope that it will be useful,

    17 #but WITHOUT ANY WARRANTY; without even the implied warranty of

    18 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    19 #General Public License for more details.

    20 #

    21 #You should have received a copy of the GNU General Public

    22 #License along with this library; if not, write to the Free Software

    23 #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    24 

    25 import wx

    26 

    27 from dialogs.DurationEditorDialog import DurationEditorDialog

    28 

    29 class DurationCellControl(wx.PyControl):

    30     

    31     '''

    32     Custom cell editor control with a text box and a button that launches

    33     the DurationEditorDialog.

    34     '''

    35     def __init__(self, parent):

    36         wx.Control.__init__(self, parent)

    37         

    38         main_sizer = wx.FlexGridSizer(cols=2, hgap=0, rows=1, vgap=0)

    39         main_sizer.AddGrowableCol(0)

    40         main_sizer.AddGrowableRow(0)

    41         

    42         # create location text control

    43         self.Duration = wx.TextCtrl(self, size=wx.Size(0, -1), 

    44               style=wx.TE_PROCESS_ENTER)

    45         self.Duration.Bind(wx.EVT_KEY_DOWN, self.OnDurationChar)

    46         main_sizer.AddWindow(self.Duration, flag=wx.GROW)

    47         

    48         # create browse button

    49         self.EditButton = wx.Button(self, label='...', size=wx.Size(30, -1))

    50         self.Bind(wx.EVT_BUTTON, self.OnEditButtonClick, self.EditButton)

    51         main_sizer.AddWindow(self.EditButton, flag=wx.GROW)

    52         

    53         self.Bind(wx.EVT_SIZE, self.OnSize)

    54         

    55         self.SetSizer(main_sizer)

    56         

    57         self.Default = None

    58         

    59     def SetValue(self, value):

    60         self.Default = value

    61         self.Duration.SetValue(value)

    62     

    63     def GetValue(self):

    64         return self.Duration.GetValue()

    65 

    66     def OnSize(self, event):

    67         self.Layout()

    68 

    69     def OnEditButtonClick(self, event):

    70         # pop up the Duration Editor dialog

    71         dialog = DurationEditorDialog(self)

    72         dialog.SetDuration(self.Duration.GetValue())

    73         if dialog.ShowModal() == wx.ID_OK:

    74             # set the duration

    75             self.Duration.SetValue(dialog.GetDuration())

    76 

    77         dialog.Destroy()

    78 

    79         self.Duration.SetFocus()

    80 

    81     def OnDurationChar(self, event):

    82         keycode = event.GetKeyCode()

    83         if keycode in [wx.WXK_RETURN, wx.WXK_TAB]:

    84             self.Parent.Parent.ProcessEvent(event)

    85         elif keycode == wx.WXK_ESCAPE:

    86             self.Duration.SetValue(self.Default)

    87             self.Parent.Parent.CloseEditControl()

    88         else:

    89             event.Skip()

    90 

    91     def SetInsertionPoint(self, i):

    92         self.Duration.SetInsertionPoint(i)

    93     

    94     def SetFocus(self):

    95         self.Duration.SetFocus()

    96 

    97 class DurationCellEditor(wx.grid.PyGridCellEditor):

    98     '''

    99     Grid cell editor that uses DurationCellControl to display an edit button.

   100     '''

   101     def __init__(self, table):

   102         wx.grid.PyGridCellEditor.__init__(self)

   103         

   104         self.Table = table

   105     

   106     def __del__(self):

   107         self.CellControl = None

   108     

   109     def Create(self, parent, id, evt_handler):

   110         self.CellControl = DurationCellControl(parent)

   111         self.SetControl(self.CellControl)

   112         if evt_handler:

   113             self.CellControl.PushEventHandler(evt_handler)

   114 

   115     def BeginEdit(self, row, col, grid):

   116         self.CellControl.Enable()

   117         self.CellControl.SetValue(self.Table.GetValueByName(row, 'Interval'))

   118         self.CellControl.SetFocus()

   119 

   120     def EndEdit(self, row, col, grid):

   121         duration = self.CellControl.GetValue()

   122         old_duration = self.Table.GetValueByName(row, 'Interval')

   123         changed = duration != old_duration

   124         if changed:

   125             self.Table.SetValueByName(row, 'Interval', duration)

   126         self.CellControl.Disable()

   127         return changed

   128 

   129     def SetSize(self, rect):

   130         self.CellControl.SetDimensions(rect.x + 1, rect.y,

   131                                         rect.width, rect.height,

   132                                         wx.SIZE_ALLOW_MINUS_ONE)

   133 

   134     def Clone(self):

   135         return DurationCellEditor(self.Table)