1

#!/usr/bin/env python

     2

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

     3

     4

# This file is part of Beremiz, a Integrated Development Environment for

     5

# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

     6

#

     7

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

     8

# Copyright (C) 2017: Andrey Skvortsov <andrej.skvortzov@gmail.com>

     9

#

    10

# See COPYING file for copyrights details.

    11

#

    12

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

    13

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

    14

# as published by the Free Software Foundation; either version 2

    15

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

    16

#

    17

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

    18

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

    19

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    20

# GNU General Public License for more details.

    21

#

    22

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

    23

# along with this program; if not, write to the Free Software

    24

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

    25

    26

import wx

    27

    28

from graphics.GraphicCommons import SELECTION_DIVERGENCE, \

    29

    SELECTION_CONVERGENCE, SIMULTANEOUS_DIVERGENCE, SIMULTANEOUS_CONVERGENCE

    30

from graphics.SFC_Objects import SFC_Divergence

    31

from BlockPreviewDialog import BlockPreviewDialog

    32

    33

#-------------------------------------------------------------------------------

    34

#                         Create New Divergence Dialog

    35

#-------------------------------------------------------------------------------

    36

    37

"""

    38

Class that implements a dialog for defining parameters for creating a new

    39

divergence graphic element

    40

"""

    41

    42

class SFCDivergenceDialog(BlockPreviewDialog):

    44

    def __init__(self, parent, controller, tagname, poss_div_types = None):

    45

        """

    46

        Constructor

    47

        @param parent: Parent wx.Window of dialog for modal

    48

        @param controller: Reference to project controller

    49

        @param tagname: Tagname of project POU edited

    50

        @param poss_div_types: Types of divergence that will be available in the dialog window

    51

        """

    52

        BlockPreviewDialog.__init__(self, parent, controller, tagname,

    53

              title=_('Create a new divergence or convergence'))

    55

        # Init common sizers

    56

        self._init_sizers(2, 0, 7, None, 2, 1)

    58

        # Create label for divergence type

    59

        type_label = wx.StaticText(self, label=_('Type:'))

    60

        self.LeftGridSizer.AddWindow(type_label, flag=wx.GROW)

    62

        # Create radio buttons for selecting divergence type

    63

        divergence_buttons = [

    64

            (SELECTION_DIVERGENCE, _('Selection Divergence')),

    65

            (SELECTION_CONVERGENCE, _('Selection Convergence')),

    66

            (SIMULTANEOUS_DIVERGENCE, _('Simultaneous Divergence')),

    67

            (SIMULTANEOUS_CONVERGENCE, _('Simultaneous Convergence'))]

    68

        poss_div_btns = []

    69

        if poss_div_types is not None:

    70

             for val in poss_div_types:

    71

                 poss_div_btns.append(divergence_buttons[val])

    72

        else:

    73

            poss_div_btns = divergence_buttons

    74

        self.TypeRadioButtons = {}

    75

        first = True

    76

        focusbtn = None

    77

        for type, label in poss_div_btns:

    79

                  style=(wx.RB_GROUP if first else 0))

    80

            radio_button.SetValue(first)

    81

            self.Bind(wx.EVT_RADIOBUTTON, self.OnTypeChanged, radio_button)

    82

            self.LeftGridSizer.AddWindow(radio_button, flag=wx.GROW)

    83

            self.TypeRadioButtons[type] = radio_button

    84

            if first: focusbtn = type

    85

            first = False

    86

    87

        # Create label for number of divergence sequences

    89

              label=_('Number of sequences:'))

    90

        self.LeftGridSizer.AddWindow(sequences_label, flag=wx.GROW)

    92

        # Create spin control for defining number of divergence sequences

    93

        self.Sequences = wx.SpinCtrl(self, min=2, max=20, initial=2)

    94

        self.Bind(wx.EVT_SPINCTRL, self.OnSequencesChanged, self.Sequences)

    95

        self.LeftGridSizer.AddWindow(self.Sequences, flag=wx.GROW)

    97

        # Add preview panel and associated label to sizers

    98

        self.RightGridSizer.AddWindow(self.PreviewLabel, flag=wx.GROW)

    99

        self.RightGridSizer.AddWindow(self.Preview, flag=wx.GROW)

   101

        # Add buttons sizer to sizers

   103

              flag=wx.ALIGN_RIGHT|wx.BOTTOM|wx.LEFT|wx.RIGHT)

   105

        self.Fit()

   106

   107

        # Selection divergence radio button is default control having keyboard

   108

        # focus

   109

        self.TypeRadioButtons[focusbtn].SetFocus()

   111

    def GetMinElementSize(self):

   112

        """

   113

        Get minimal graphic element size

   114

        @return: Tuple containing minimal size (width, height) or None if no

   115

        element defined

   116

        """

   117

        return self.Element.GetMinSize(True)

   119

    def GetDivergenceType(self):

   120

        """

   121

        Return type selected for SFC divergence

   122

        @return: Type selected (None if not found)

   123

        """

   124

        # Go through radio buttons and return type associated to the one that

   125

        # is selected

   126

        for type, control in self.TypeRadioButtons.iteritems():

   127

            if control.GetValue():

   128

                return type

   129

        return None

   131

    def GetValues(self):

   132

        """

   133

        Set default SFC divergence parameters

   134

        @param values: Divergence parameters values

   135

        """

   136

        return {"type": self.GetDivergenceType(),

   137

                "number": self.Sequences.GetValue()}

   138

   139

    def OnTypeChanged(self, event):

   140

        """

   141

        Called when SFC divergence type changed

   142

        @param event: wx.RadioButtonEvent

   143

        """

   144

        self.RefreshPreview()

   145

        event.Skip()

   146

   147

    def OnSequencesChanged(self, event):

   148

        """

   149

        Called when SFC divergence number of sequences changed

   150

        @param event: wx.SpinEvent

   151

        """

   152

        self.RefreshPreview()

   153

        event.Skip()

   155

    def RefreshPreview(self):

   156

        """

   157

        Refresh preview panel of graphic element

   158

        Override BlockPreviewDialog function

   159

        """

   160

        # Set graphic element displayed, creating a SFC divergence

   163

                                      self.Sequences.GetValue())

   165

        # Call BlockPreviewDialog function

   166

        BlockPreviewDialog.RefreshPreview(self)