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

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

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#based on the plcopen standard. 

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#

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

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#

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#See COPYING file for copyrights details.

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#

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

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#modify it under the terms of the GNU General Public

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#License as published by the Free Software Foundation; either

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

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#

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

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

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

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#General Public License for more details.

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#

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

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

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

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import wx

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from graphics import *

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

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#                          Edit Transition Content Dialog

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

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class SFCTransitionDialog(wx.Dialog):

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    def __init__(self, parent, controller, connection):

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        self.Connection = connection

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        wx.Dialog.__init__(self, parent, 

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              size=wx.Size(350, 300), title=_('Edit transition'))

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        main_sizer = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=10)

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        main_sizer.AddGrowableCol(0)

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        main_sizer.AddGrowableRow(0)

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        column_sizer = wx.BoxSizer(wx.HORIZONTAL)

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        main_sizer.AddSizer(column_sizer, border=20, 

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              flag=wx.GROW|wx.TOP|wx.LEFT|wx.RIGHT)

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        left_gridsizer = wx.FlexGridSizer(cols=1, hgap=0, rows=8, vgap=5)

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        left_gridsizer.AddGrowableCol(0)

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        column_sizer.AddSizer(left_gridsizer, 1, border=5, 

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                              flag=wx.GROW|wx.RIGHT)

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

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        left_gridsizer.AddWindow(type_label, flag=wx.GROW)

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        self.ReferenceRadioButton = wx.RadioButton(self,

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              label=_('Reference'), style=wx.RB_GROUP)

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        self.ReferenceRadioButton.SetValue(True)

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

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        left_gridsizer.AddWindow(self.ReferenceRadioButton, flag=wx.GROW)

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        self.Reference = wx.ComboBox(self, style=wx.CB_READONLY)

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        self.Bind(wx.EVT_COMBOBOX, self.OnReferenceChanged, self.Reference)

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        left_gridsizer.AddWindow(self.Reference, flag=wx.GROW)

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        self.InlineRadioButton = wx.RadioButton(self, label=_('Inline'))

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        self.InlineRadioButton.SetValue(False)

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

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        left_gridsizer.AddWindow(self.InlineRadioButton, flag=wx.GROW)

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        self.Inline = wx.TextCtrl(self)

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        self.Inline.Enable(False)

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        self.Bind(wx.EVT_TEXT, self.OnInlineChanged, self.Inline)

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        left_gridsizer.AddWindow(self.Inline, flag=wx.GROW)

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        self.ConnectionRadioButton = wx.RadioButton(self, label=_('Connection'))

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

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        self.ConnectionRadioButton.SetValue(False)

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        if not self.Connection:

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            self.ConnectionRadioButton.Hide()

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        left_gridsizer.AddWindow(self.ConnectionRadioButton, flag=wx.GROW)

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        priority_label = wx.StaticText(self, label=_('Priority:'))

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        left_gridsizer.AddWindow(priority_label, flag=wx.GROW)

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        self.Priority = wx.SpinCtrl(self, min=0, style=wx.SP_ARROW_KEYS)

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        self.Bind(wx.EVT_TEXT, self.OnPriorityChanged, self.Priority)

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        left_gridsizer.AddWindow(self.Priority, flag=wx.GROW)

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        right_gridsizer = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=5)

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        right_gridsizer.AddGrowableCol(0)

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        right_gridsizer.AddGrowableRow(1)

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        column_sizer.AddSizer(right_gridsizer, 1, border=5, 

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              flag=wx.GROW|wx.LEFT)

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        preview_label = wx.StaticText(self, label=_('Preview:'))

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        right_gridsizer.AddWindow(preview_label, flag=wx.GROW)

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        self.Preview = wx.Panel(self, 

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              style=wx.TAB_TRAVERSAL|wx.SIMPLE_BORDER)

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        self.Preview.SetBackgroundColour(wx.Colour(255,255,255))

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        setattr(self.Preview, "GetDrawingMode", lambda:FREEDRAWING_MODE)

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        setattr(self.Preview, "RefreshTransitionModel", lambda x:None)

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        setattr(self.Preview, "GetScaling", lambda:None)

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        setattr(self.Preview, "IsOfType", controller.IsOfType)

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        self.Preview.Bind(wx.EVT_PAINT, self.OnPaint)

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

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        button_sizer = self.CreateButtonSizer(wx.OK|wx.CANCEL|wx.CENTRE)

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        self.Bind(wx.EVT_BUTTON, self.OnOK, 

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              button_sizer.GetAffirmativeButton())

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        main_sizer.AddSizer(button_sizer, border=20, 

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

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        self.SetSizer(main_sizer)

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        self.Transition = None

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        self.MinTransitionSize = None

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        self.Element = SFC_Transition(self.Preview)

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        self.ReferenceRadioButton.SetFocus()

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    def SetPreviewFont(self, font):

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        self.Preview.SetFont(font)

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    def SetElementSize(self, size):

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        min_width, min_height = self.Element.GetMinSize()

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        width, height = max(min_width, size[0]), max(min_height, size[1])

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        self.Element.SetSize(width, height)

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    def OnOK(self, event):

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        error = []

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        if self.ReferenceRadioButton.GetValue() and self.Reference.GetStringSelection() == "":

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            error.append(_("Reference"))

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        if self.InlineRadioButton.GetValue() and self.Inline.GetValue() == "":

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            error.append(_("Inline"))

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        if len(error) > 0:

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            text = ""

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            for i, item in enumerate(error):

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                if i == 0:

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                    text += item

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                elif i == len(error) - 1:

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                    text += _(" and %s")%item

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                else:

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                    text += _(", %s")%item 

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            dialog = wx.MessageDialog(self, _("Form isn't complete. %s must be filled!")%text, _("Error"), wx.OK|wx.ICON_ERROR)

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            dialog.ShowModal()

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            dialog.Destroy()

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        else:

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            self.EndModal(wx.ID_OK)

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    def OnTypeChanged(self, event):

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        if self.ReferenceRadioButton.GetValue():

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            self.Element.SetType("reference", self.Reference.GetStringSelection())

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            self.Reference.Enable(True)

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            self.Inline.Enable(False)

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        elif self.InlineRadioButton.GetValue():

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            self.Element.SetType("inline", self.Inline.GetValue())

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            self.Reference.Enable(False)

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            self.Inline.Enable(True)

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        else:

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            self.Element.SetType("connection")

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            self.Reference.Enable(False)

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            self.Inline.Enable(False)

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        self.RefreshPreview()

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        event.Skip()

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    def OnReferenceChanged(self, event):

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        self.Element.SetType("reference", self.Reference.GetStringSelection())

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        self.RefreshPreview()

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        event.Skip()

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    def OnInlineChanged(self, event):

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        self.Element.SetType("inline", self.Inline.GetValue())

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        self.RefreshPreview()

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        event.Skip()

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    def OnPriorityChanged(self, event):

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        self.Element.SetPriority(int(self.Priority.GetValue()))

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        self.RefreshPreview()

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        event.Skip()

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    def SetTransitions(self, transitions):

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        self.Reference.Append("")

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        for transition in transitions:

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            self.Reference.Append(transition)

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    def SetValues(self, values):

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        if values["type"] == "reference":

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            self.ReferenceRadioButton.SetValue(True)

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            self.InlineRadioButton.SetValue(False)

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            self.ConnectionRadioButton.SetValue(False)

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            self.Reference.Enable(True)

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            self.Inline.Enable(False)

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            self.Reference.SetStringSelection(values["value"])

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            self.Element.SetType("reference", values["value"])

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        elif values["type"] == "inline":

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            self.ReferenceRadioButton.SetValue(False)

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            self.InlineRadioButton.SetValue(True)

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            self.ConnectionRadioButton.SetValue(False)

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            self.Reference.Enable(False)

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            self.Inline.Enable(True)

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            self.Inline.SetValue(values["value"])

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            self.Element.SetType("inline", values["value"])

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        elif values["type"] == "connection" and self.Connection:

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            self.ReferenceRadioButton.SetValue(False)

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            self.InlineRadioButton.SetValue(False)

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            self.ConnectionRadioButton.SetValue(True)

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            self.Reference.Enable(False)

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            self.Inline.Enable(False)

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            self.Element.SetType("connection")

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        self.Priority.SetValue(values["priority"])

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        self.Element.SetPriority(values["priority"])

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        self.RefreshPreview()

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    def GetValues(self):

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        values = {"priority" : int(self.Priority.GetValue())}

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        if self.ReferenceRadioButton.GetValue():

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            values["type"] = "reference"

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            values["value"] = self.Reference.GetStringSelection()

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        elif self.InlineRadioButton.GetValue():

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            values["type"] = "inline"

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            values["value"] = self.Inline.GetValue()

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        else:

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            values["type"] = "connection"

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            values["value"] = None

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        return values

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    def RefreshPreview(self):

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        dc = wx.ClientDC(self.Preview)

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        dc.SetFont(self.Preview.GetFont())

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        dc.Clear()

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        clientsize = self.Preview.GetClientSize()

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        posx, posy = self.Element.GetPosition()

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        rect = self.Element.GetBoundingBox()

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        diffx, diffy = posx - rect.x, posy - rect.y

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        self.Element.SetPosition((clientsize.width - rect.width) / 2 + diffx, (clientsize.height - rect.height) / 2 + diffy)

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        self.Element.Draw(dc)

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    def OnPaint(self, event):

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        self.RefreshPreview()

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        event.Skip()