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, colname):

   102

        wx.grid.PyGridCellEditor.__init__(self)

   103

   104

        self.Table = table

   105

        self.Colname = colname

   106

   107

    def __del__(self):

   108

        self.CellControl = None

   109

   110

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

   111

        self.CellControl = DurationCellControl(parent)

   112

        self.SetControl(self.CellControl)

   113

        if evt_handler:

   114

            self.CellControl.PushEventHandler(evt_handler)

   115

   116

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

   117

        self.CellControl.Enable()

   118

        self.CellControl.SetValue(self.Table.GetValueByName(row, self.Colname))

   119

        self.CellControl.SetFocus()

   120

   121

    def EndEditInternal(self, row, col, grid, old_duration):

   122

        duration = self.CellControl.GetValue()

   123

        changed = duration != old_duration

   124

        if changed:

   125

            self.Table.SetValueByName(row, self.Colname, duration)

   126

        self.CellControl.Disable()

   127

        return changed

   128

   129

    if wx.VERSION >= (3, 0, 0):

   130

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

   131

            return self.EndEditInternal(row, col, grid, oldval)

   132

    else:

   133

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

   134

            oldval = self.Table.GetValueByName(row, self.Colname)            

   135

            return self.EndEditInternal(row, col, grid, oldval)    

   136

   137

    def SetSize(self, rect):

   138

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

   139

                                        rect.width, rect.height,

   140

                                        wx.SIZE_ALLOW_MINUS_ONE)

   141

   142

    def Clone(self):

   143

        return DurationCellEditor(self.Table)