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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 Step Content Dialog

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

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[ID_SFCSTEPDIALOG, ID_SFCSTEPDIALOGSPACER, 

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 ID_SFCSTEPDIALOGNAME, ID_SFCSTEPDIALOGPREVIEW, 

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 ID_SFCSTEPDIALOGCHECKBOX1, ID_SFCSTEPDIALOGCHECKBOX2,

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 ID_SFCSTEPDIALOGCHECKBOX3, ID_SFCSTEPDIALOGSTATICTEXT1, 

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 ID_SFCSTEPDIALOGSTATICTEXT2, ID_SFCSTEPDIALOGSTATICTEXT3, 

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] = [wx.NewId() for _init_ctrls in range(10)]

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class SFCStepDialog(wx.Dialog):

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    if wx.VERSION < (2, 6, 0):

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        def Bind(self, event, function, id = None):

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            if id is not None:

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                event(self, id, function)

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            else:

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                event(self, function)

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    def _init_coll_flexGridSizer1_Items(self, parent):

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        parent.AddSizer(self.MainSizer, 0, border=20, flag=wx.GROW|wx.TOP|wx.LEFT|wx.RIGHT)

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        parent.AddSizer(self.ButtonSizer, 0, border=20, flag=wx.ALIGN_RIGHT|wx.BOTTOM|wx.LEFT|wx.RIGHT)

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    def _init_coll_flexGridSizer1_Growables(self, parent):

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        parent.AddGrowableCol(0)

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        parent.AddGrowableRow(0)

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    def _init_coll_MainSizer_Items(self, parent):

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        parent.AddSizer(self.LeftGridSizer, 1, border=5, flag=wx.GROW|wx.RIGHT)

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        parent.AddSizer(self.RightGridSizer, 1, border=5, flag=wx.GROW|wx.LEFT)

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    def _init_coll_LeftGridSizer_Items(self, parent):

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        parent.AddWindow(self.staticText1, 0, border=0, flag=wx.GROW)

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        parent.AddWindow(self.StepName, 0, border=0, flag=wx.GROW)

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        parent.AddWindow(self.staticText2, 0, border=0, flag=wx.GROW)

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        parent.AddWindow(self.checkBox1, 0, border=0, flag=wx.GROW)

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        parent.AddWindow(self.checkBox2, 0, border=0, flag=wx.GROW)

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        parent.AddWindow(self.checkBox3, 0, border=0, flag=wx.GROW)

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        parent.AddWindow(self.Spacer, 0, border=0, flag=wx.GROW)

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    def _init_coll_LeftGridSizer_Growables(self, parent):

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        parent.AddGrowableCol(0)

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        parent.AddGrowableRow(6)

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    def _init_coll_RightGridSizer_Items(self, parent):

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        parent.AddWindow(self.staticText3, 0, border=0, flag=wx.GROW)

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        parent.AddWindow(self.Preview, 0, border=0, flag=wx.GROW)

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    def _init_coll_RightGridSizer_Growables(self, parent):

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        parent.AddGrowableCol(0)

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        parent.AddGrowableRow(1)

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    def _init_sizers(self):

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        self.flexGridSizer1 = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=10)

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        self.MainSizer = wx.BoxSizer(wx.HORIZONTAL)

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        self.LeftGridSizer = wx.FlexGridSizer(cols=1, hgap=0, rows=7, vgap=5)

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

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        self._init_coll_flexGridSizer1_Items(self.flexGridSizer1)

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        self._init_coll_flexGridSizer1_Growables(self.flexGridSizer1)

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        self._init_coll_MainSizer_Items(self.MainSizer)

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        self._init_coll_LeftGridSizer_Items(self.LeftGridSizer)

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        self._init_coll_LeftGridSizer_Growables(self.LeftGridSizer)

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        self._init_coll_RightGridSizer_Items(self.RightGridSizer)

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        self._init_coll_RightGridSizer_Growables(self.RightGridSizer)

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        self.SetSizer(self.flexGridSizer1)

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    def _init_ctrls(self, prnt, ctrler):

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        wx.Dialog.__init__(self, id=ID_SFCSTEPDIALOG,

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              name='SFCStepDialog', parent=prnt,

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              size=wx.Size(400, 250), style=wx.DEFAULT_DIALOG_STYLE,

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              title=_('Edit Step'))

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        self.SetClientSize(wx.Size(400, 250))

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        self.staticText1 = wx.StaticText(id=ID_SFCSTEPDIALOGSTATICTEXT1,

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              label=_('Name:'), name='staticText1', parent=self,

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              pos=wx.Point(0, 0), size=wx.Size(0, 17), style=0)

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        self.staticText2 = wx.StaticText(id=ID_SFCSTEPDIALOGSTATICTEXT2,

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              label=_('Connectors:'), name='staticText2', parent=self,

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              pos=wx.Point(0, 0), size=wx.Size(0, 17), style=0)

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        self.staticText3 = wx.StaticText(id=ID_SFCSTEPDIALOGSTATICTEXT3,

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              label=_('Preview:'), name='staticText4', parent=self,

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              pos=wx.Point(0, 0), size=wx.Size(0, 17), style=0)

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        self.StepName = wx.TextCtrl(id=ID_SFCSTEPDIALOGNAME,

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              name='Name', parent=self, pos=wx.Point(0, 0),

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              size=wx.Size(0, 24), style=0)

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        self.Bind(wx.EVT_TEXT, self.OnNameChanged, id=ID_SFCSTEPDIALOGNAME)

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        self.checkBox1 = wx.CheckBox(id=ID_SFCSTEPDIALOGCHECKBOX1,

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              label=_("Input"), name='checkBox1', parent=self,

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              pos=wx.Point(0, 0), size=wx.Size(0, 24), style=0)

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        self.Bind(wx.EVT_CHECKBOX, self.OnConnectorsChanged, id=ID_SFCSTEPDIALOGCHECKBOX1)

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        self.checkBox2 = wx.CheckBox(id=ID_SFCSTEPDIALOGCHECKBOX2,

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              label=_("Output"), name='checkBox2', parent=self,

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              pos=wx.Point(0, 0), size=wx.Size(0, 24), style=0)

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        self.Bind(wx.EVT_CHECKBOX, self.OnConnectorsChanged, id=ID_SFCSTEPDIALOGCHECKBOX2)

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        self.checkBox3 = wx.CheckBox(id=ID_SFCSTEPDIALOGCHECKBOX3,

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              label=_("Action"), name='checkBox3', parent=self,

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              pos=wx.Point(0, 0), size=wx.Size(0, 24), style=0)

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        self.Bind(wx.EVT_CHECKBOX, self.OnConnectorsChanged, id=ID_SFCSTEPDIALOGCHECKBOX3)

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        self.Spacer = wx.Panel(id=ID_SFCSTEPDIALOGSPACER,

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              name='Spacer', parent=self, pos=wx.Point(0, 0),

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              size=wx.Size(0, 0), style=wx.TAB_TRAVERSAL)

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        self.Preview = wx.Panel(id=ID_SFCSTEPDIALOGPREVIEW,

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              name='Preview', parent=self, pos=wx.Point(0, 0),

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              size=wx.Size(0, 0), 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, "RefreshStepModel", lambda x:None)

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

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

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

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        if wx.VERSION >= (2, 5, 0):

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            self.Bind(wx.EVT_BUTTON, self.OnOK, id=self.ButtonSizer.GetAffirmativeButton().GetId())

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

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        else:

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            self.Bind(wx.EVT_BUTTON, self.OnOK, id=self.ButtonSizer.GetChildren()[0].GetSizer().GetChildren()[0].GetWindow().GetId())

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

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        self._init_sizers()

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    def __init__(self, parent, controler, initial = False):

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        self._init_ctrls(parent, controler)

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        self.Step = None

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        self.Initial = initial

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        self.MinStepSize = None

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        self.PouNames = []

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        self.Variables = []

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        self.StepNames = []

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    def SetPreviewFont(self, font):

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        self.Preview.SetFont(font)

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    def OnOK(self, event):

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        step_name = self.StepName.GetValue()

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        if step_name == "":

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            message = wx.MessageDialog(self, _("You must type a name!"), _("Error"), wx.OK|wx.ICON_ERROR)

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            message.ShowModal()

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            message.Destroy()

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        elif not TestIdentifier(step_name):

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            message = wx.MessageDialog(self, _("\"%s\" is not a valid identifier!")%step_name, _("Error"), wx.OK|wx.ICON_ERROR)

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            message.ShowModal()

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            message.Destroy()

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        elif step_name.upper() in IEC_KEYWORDS:

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            message = wx.MessageDialog(self, _("\"%s\" is a keyword. It can't be used!")%step_name, _("Error"), wx.OK|wx.ICON_ERROR)

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            message.ShowModal()

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            message.Destroy()

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        elif step_name.upper() in self.PouNames:

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            message = wx.MessageDialog(self, _("A POU named \"%s\" already exists!")%step_name, _("Error"), wx.OK|wx.ICON_ERROR)

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            message.ShowModal()

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            message.Destroy()

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        elif step_name.upper() in self.Variables:

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            message = wx.MessageDialog(self, _("A variable with \"%s\" as name already exists in this pou!")%step_name, _("Error"), wx.OK|wx.ICON_ERROR)

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            message.ShowModal()

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            message.Destroy()

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        elif step_name.upper() in self.StepNames:

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            message = wx.MessageDialog(self, _("\"%s\" step already exists!")%step_name, _("Error"), wx.OK|wx.ICON_ERROR)

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            message.ShowModal()

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            message.Destroy()

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        else:

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            self.EndModal(wx.ID_OK)

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    def SetMinStepSize(self, size):

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        self.MinStepSize = size

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    def SetPouNames(self, pou_names):

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        self.PouNames = [pou_name.upper() for pou_name in pou_names]

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    def SetVariables(self, variables):

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        self.Variables = [var["Name"].upper() for var in variables]

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    def SetStepNames(self, step_names):

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        self.StepNames = [step_name.upper() for step_name in step_names]

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    def SetValues(self, values):

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        value_name = values.get("name", None)

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        if value_name:

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            self.StepName.SetValue(value_name)

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        else:

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            self.StepName.SetValue("")

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        self.checkBox1.SetValue(values.get("input", False))

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        self.checkBox2.SetValue(values.get("output", False))

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        self.checkBox3.SetValue(values.get("action", False))

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        self.RefreshPreview()

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    def GetValues(self):

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        values = {}

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        values["name"] = self.StepName.GetValue()

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        values["input"] = self.checkBox1.IsChecked()

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        values["output"] = self.checkBox2.IsChecked()

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        values["action"] = self.checkBox3.IsChecked()

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        values["width"], values["height"] = self.Step.GetSize()

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        return values

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    def OnConnectorsChanged(self, event):

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        self.RefreshPreview()

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        event.Skip()

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    def OnNameChanged(self, event):

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        self.RefreshPreview()

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        event.Skip()

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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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        self.Step = SFC_Step(self.Preview, self.StepName.GetValue(), self.Initial)

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        if self.checkBox1.IsChecked():

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            self.Step.AddInput()

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        else:

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            self.Step.RemoveInput()

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        if self.checkBox2.IsChecked():

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            self.Step.AddOutput()

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        else:

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            self.Step.RemoveOutput()

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        if self.checkBox3.IsChecked():

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            self.Step.AddAction()    

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        else:

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            self.Step.RemoveAction()

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        width, height = self.MinStepSize

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        min_width, min_height = self.Step.GetMinSize()

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        width, height = max(min_width, width), max(min_height, height)

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        self.Step.SetSize(width, height)

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        clientsize = self.Preview.GetClientSize()

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        x = (clientsize.width - width) / 2

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        y = (clientsize.height - height) / 2

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        self.Step.SetPosition(x, y)

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        self.Step.Draw(dc)

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    def OnPaint(self, event):

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        self.RefreshPreview()

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        event.Skip()