Geografic-Information-System/gui/wxpython/rlisetup/wizard.py

"""
@package rlisetup.py

@brief   GUI per r.li.setup module

Classes:
 - RLiSetupFrame (first frame to show existing conf file and choose some
                 operation)
 - RLIWizard (the main wizard)
 - FirstPage (first page of wizard, choose name of conf file, raster, vector,
              sampling region)
 - Keyboard (page to insert region areas from keyboard)
 - SamplingAreas (define sampling area)
 - SummaryPage (show choosen options)

(C) 2011 by the GRASS Development Team
This program is free software under the GNU General Public License
(>=v2). Read the file COPYING that comes with GRASS for details.

@author Luca Delucchi <lucadeluge gmail com>
"""

import os

import wx
from core.globalvar import wxPythonPhoenix
if wxPythonPhoenix:
    from wx import adv as wiz
    from wx.adv import Wizard
else:
    from wx import wizard as wiz
    from wx.wizard import Wizard
import wx.lib.scrolledpanel as scrolled

from gui_core import gselect
from core.utils import _
from location_wizard.wizard import TitledPage as TitledPage
from rlisetup.functions import checkValue, retRLiPath
from rlisetup.sampling_frame import RLiSetupMapPanel
from grass.script import core as grass
from grass.script import raster as grast
from grass.script import vector as gvect
from grass.exceptions import CalledModuleError

from functions import SamplingType, sampleAreaVector, convertFeature
from functions import obtainAreaVector, obtainCategories
from core.gcmd import GError, GMessage, RunCommand


class RLIWizard(object):
    """
    !Start wizard here and finish wizard here
    """

    def __init__(self, parent):
        self.parent = parent
        self.wizard = Wizard(parent=parent, id=wx.ID_ANY,
                                 title=_("Create new configuration file for "
                                         "r.li modules"))
        self.rlipath = retRLiPath()

        self.msAreaList = []
        # pages
        self.startpage = FirstPage(self.wizard, self)
        self.drawsampleframepage = DrawSampleFramePage(self.wizard, self)
        self.keyboardpage = KeyboardPage(self.wizard, self)
        self.samplingareapage = SamplingAreasPage(self.wizard, self)
        self.summarypage = SummaryPage(self.wizard, self)
        self.units = SampleUnitsKeyPage(self.wizard, self)
        self.drawunits = UnitsMousePage(self.wizard, self)
        self.drawsampleunitspage = DrawSampleUnitsPage(self.wizard, self)
        self.vectorareas = VectorAreasPage(self.wizard, self)
        self.moving = MovingKeyPage(self.wizard, self)
        self.regions = DrawRegionsPage(self.wizard, self)

        # order of pages
        self.startpage.SetNext(self.samplingareapage)
        self.keyboardpage.SetPrev(self.startpage)
        self.keyboardpage.SetNext(self.samplingareapage)
        self.drawsampleframepage.SetNext(self.samplingareapage)
        self.drawsampleframepage.SetPrev(self.startpage)
        self.samplingareapage.SetPrev(self.startpage)
        self.samplingareapage.SetNext(self.summarypage)

        self.regions.SetPrev(self.samplingareapage)
        self.regions.SetNext(self.summarypage)

        self.units.SetPrev(self.samplingareapage)
        self.units.SetNext(self.summarypage)

        self.drawunits.SetPrev(self.samplingareapage)
        self.drawunits.SetNext(self.drawsampleunitspage)

        self.drawsampleunitspage.SetPrev(self.drawunits)
        self.drawsampleunitspage.SetNext(self.summarypage)

        self.moving.SetPrev(self.samplingareapage)
        self.moving.SetNext(self.summarypage)

        self.vectorareas.SetPrev(self.samplingareapage)
        self.vectorareas.SetNext(self.summarypage)

        self.summarypage.SetPrev(self.samplingareapage)

        # layout
        self.startpage.DoLayout()
        self.drawsampleframepage.DoLayout()
        self.keyboardpage.DoLayout()
        self.samplingareapage.DoLayout()
        self.summarypage.DoLayout()
        self.units.DoLayout()
        self.drawunits.DoLayout()
        self.drawsampleunitspage.DoLayout()
        self.regions.DoLayout()
        self.moving.DoLayout()
        self.vectorareas.DoLayout()

        self.wizard.FitToPage(self.startpage)
        # run_wizard
        if self.wizard.RunWizard(self.startpage):
            dlg = wx.MessageDialog(
                parent=self.parent,
                message=_(
                    "Do you want to create r.li "
                    "configuration file <%s>?") %
                self.startpage.conf_name,
                caption=_("Create new r.li configuration file?"),
                style=wx.YES_NO | wx.YES_DEFAULT | wx.ICON_QUESTION)

            if dlg.ShowModal() == wx.ID_NO:
                self._cleanup()
            else:
                self._write_confile()
                self._cleanup()
            dlg.Destroy()
        else:
            self.wizard.Destroy()
            GMessage(parent=self.parent,
                     message=_("r.li.setup wizard canceled. "
                               "Configuration file not created."))
            self._cleanup()

    def _write_confile(self):
        """Write the configuration file"""
        f = open(os.path.join(self.rlipath, self.startpage.conf_name), 'wb')
        self.rasterinfo = grast.raster_info(self.startpage.rast)
        self._write_region(f)
        self._write_area(f)
        f.close()

    def _temp_region(self):
        # save current settings:
        grass.use_temp_region()
        # Temporarily aligning region resolution to $RASTER resolution
        # keep boundary settings
        grass.run_command('g.region', raster=self.startpage.rast)
        self.gregion = grass.region()
        self.SF_NSRES = self.gregion['nsres']
        self.SF_EWRES = self.gregion['ewres']

    def _write_region(self, fil):
        """Write the region"""
        if self.startpage.region == 'whole':
            fil.write("SAMPLINGFRAME 0|0|1|1\n")
            self._temp_region()
            self.SF_X = 0.0
            self.SF_Y = 0.0
            self.SF_RL = abs(int(float(self.gregion['s'] - self.gregion['n'])
                                 / float(self.gregion['nsres'])))
            self.SF_CL = abs(int(float(self.gregion['e'] - self.gregion['w'])
                                 / float(self.gregion['ewres'])))
            self.SF_N = self.gregion['n']
            self.SF_S = self.gregion['s']
            self.SF_E = self.gregion['e']
            self.SF_W = self.gregion['w']
            self.per_x = float(self.SF_X) / float(self.rasterinfo['cols'])
            self.per_y = float(self.SF_Y) / float(self.rasterinfo['rows'])
            self.per_rl = float(self.SF_RL) / float(self.rasterinfo['rows'])
            self.per_cl = float(self.SF_CL) / float(self.rasterinfo['cols'])
        elif self.startpage.region == 'key':
            self._temp_region()
            self.SF_X = float(self.keyboardpage.col_up)
            self.SF_Y = float(self.keyboardpage.row_up)
            self.SF_RL = float(self.keyboardpage.row_len)
            self.SF_CL = float(self.keyboardpage.col_len)
            self.SF_N = self.gregion['n'] - (self.SF_NSRES * self.SF_Y)
            self.SF_S = self.gregion[
                'n'] - (self.SF_NSRES * self.SF_Y + self.SF_RL)
            self.SF_W = self.gregion['w'] + (self.SF_EWRES * self.SF_X)
            self.SF_E = self.gregion[
                'w'] + (self.SF_EWRES * self.SF_X + self.SF_CL)
            self.per_x = float(self.SF_X) / float(self.rasterinfo['cols'])
            self.per_y = float(self.SF_Y) / float(self.rasterinfo['rows'])
            self.per_rl = float(self.SF_RL) / float(self.rasterinfo['rows'])
            self.per_cl = float(self.SF_CL) / float(self.rasterinfo['cols'])
            fil.write("SAMPLINGFRAME %r|%r|%r|%r\n" % (self.per_x, self.per_y,
                                                       self.per_rl,
                                                       self.per_cl))
        elif self.startpage.region == 'draw':
            self._temp_region()
            tregion = self.drawsampleframepage.tregion
            # should we call this? with align param?
            RunCommand('g.region', align=self.startpage.rast, n=tregion['n'],
                       s=tregion['s'], w=tregion['w'], e=tregion['e'])
            newreg = grass.region()
            self.SF_N = newreg['n']  # set env(SF_N) $n
            self.SF_S = newreg['s']  # set env(SF_S) $s
            self.SF_E = newreg['e']  # set env(SF_E) $e
            self.SF_W = newreg['w']  # set env(SF_W) $w

            self.SF_Y = abs(
                round(
                    self.gregion['n'] -
                    newreg['n']) /
                newreg['nsres'])
#         set env(SF_Y) [expr abs(round(($s_n - $n) / $nres)) ]
            self.SF_X = abs(
                round(
                    self.gregion['w'] -
                    newreg['w']) /
                newreg['ewres'])
#         set env(SF_X) [expr abs(round(($s_w - $w) / $sres)) ]
            self.SF_RL = abs(
                round(
                    newreg['n'] -
                    newreg['s']) /
                newreg['nsres'])
#         set env(SF_RL) [expr abs(round(($n - $s) / $nres)) ]
            self.SF_CL = abs(
                round(
                    newreg['e'] -
                    newreg['w']) /
                newreg['ewres'])
#         set env(SF_CL) [expr abs(round(($e - $w) / $sres)) ]
            self.per_x = float(self.SF_X) / float(self.rasterinfo['cols'])
#         double($env(SF_X)) / double($cols)
            self.per_y = float(self.SF_Y) / float(self.rasterinfo['rows'])
#           double($env(SF_Y)) / double($rows)
            self.per_rl = float(self.SF_RL) / float(self.rasterinfo['rows'])
#         double($env(SF_RL)) / double($rows)
            self.per_cl = float(self.SF_CL) / float(self.rasterinfo['cols'])
#         double($env(SF_CL)) / double($cols)
            fil.write("SAMPLINGFRAME %r|%r|%r|%r\n" %
                      (self.per_x, self.per_y, self.per_rl, self.per_cl))

    def _value_for_circle(self, radius):
        self.CIR_RL = round((2 * float(radius)) /
                            float(self.rasterinfo['ewres']))
        self.CIR_CL = round((2 * float(radius)) /
                            float(self.rasterinfo['nsres']))
        if not self.CIR_RL % 2:
            self.CIR_RL += 1
        if not self.CIR_CL % 2:
            self.CIR_CL += 1
        return

    def _circle(self, radius, mask):
        """Create a circle mask"""
        self._value_for_circle(radius)
        eastEdge = float(self.SF_W + (self.CIR_RL * self.SF_EWRES))
        southEdge = float(self.SF_N - (self.CIR_CL * self.SF_NSRES))
        grass.del_temp_region()
        grass.use_temp_region()
        grass.run_command('g.region', n=self.SF_N, s=southEdge, e=eastEdge,
                          w=self.SF_W)
        xcenter = grass.region(complete=True)['center_easting']
        ycenter = grass.region(complete=True)['center_northing']
        grass.run_command('r.circle', flags='b', out=mask, max=radius,
                          coordinate=[xcenter, ycenter], quiet=True)
        grass.del_temp_region()
        grass.use_temp_region()
        grass.run_command('g.region', raster=self.startpage.rast)

    def getSamplingType(self):
        """Obtain the sampling type"""
        devicetype = self.samplingareapage.regionbox
        samplingtype = self.samplingareapage.samplingtype
        shapetype = self.units.boxtype
        if samplingtype == SamplingType.UNITS:
            if devicetype == 'mouse':
                if shapetype == 'circle':
                    samtype = SamplingType.MUNITSC
                else:
                    samtype = SamplingType.MUNITSR
            elif devicetype == 'keyboard':
                if shapetype == 'circle':
                    samtype = SamplingType.KUNITSC
                else:
                    samtype = SamplingType.KUNITSR

        elif samplingtype == SamplingType.MVWIN:
            if devicetype == 'mouse':
                if shapetype == 'circle':
                    samtype = SamplingType.MMVWINC
                else:
                    samtype = SamplingType.MMVWINR
            elif devicetype == 'keyboard':
                if shapetype == 'circle':
                    samtype = SamplingType.KMVWINC
                else:
                    samtype = SamplingType.KMVWINR
        elif samplingtype == SamplingType.WHOLE:
            samtype = SamplingType.WHOLE
        elif samplingtype == SamplingType.REGIONS:
            samtype = SamplingType.REGIONS
        elif samplingtype == SamplingType.VECT:
            samtype = SamplingType.VECT
        else:
            samtype = samplingtype
        return samtype

    def _write_area(self, fil):
        """Write the area according the type"""
        samtype = self.getSamplingType()

        # sampling type is whole
        if samtype == SamplingType.WHOLE:
            cl = float(self.SF_CL) / float(self.rasterinfo['cols'])
            rl = float(self.SF_RL) / float(self.rasterinfo['rows'])
            # this two variable are unused, problably to remove
            x = float(self.SF_X) / float(self.rasterinfo['cols'])
            y = float(self.SF_Y) / float(self.rasterinfo['rows'])
            fil.write("SAMPLEAREA %r|%r|%r|%r\n" % (self.per_x, self.per_y,
                                                    rl, cl))
        ##KMWINC = samplingtype=moving, regionbox=keyboard, shape=circle
        elif samtype == SamplingType.KMVWINC:
            self._circle(self.moving.width, self.moving.height)
            cl = float(self.CIR_CL) / float(self.rasterinfo['cols'])
            rl = float(self.CIR_RL) / float(self.rasterinfo['rows'])
            fil.write("MASKEDSAMPLEAREA -1|-1|%r|%r" % (rl, cl))
            fil.write("|%s" % self.moving.height)
            fil.write("\nMOVINGWINDOW\n")
        # KMWINR = samplingtype moving, regionbox=keyboard, shape=rectangle
        elif samtype == SamplingType.KMVWINR:
            cl = float(self.moving.width) / float(self.rasterinfo['cols'])
            rl = float(self.moving.height) / float(self.rasterinfo['rows'])
            fil.write("SAMPLEAREA -1|-1|%r|%r" % (rl, cl))
            fil.write("\nMOVINGWINDOW\n")
        # MMVWINR = samplingtype moving, regionbox=mouse, shape=rectangle
        elif samtype == SamplingType.MMVWINR:
            cl = float(self.msAreaList[0]['cols']
                       ) / float(self.rasterinfo['cols'])
            rl = float(self.msAreaList[0]['rows']
                       ) / float(self.rasterinfo['rows'])
            fil.write("SAMPLEAREA -1|-1|%r|%r" % (rl, cl))
            fil.write("\nMOVINGWINDOW\n")
        # MMVWINR = samplingtype moving, regionbox=mouse, shape=circle
        elif samtype == SamplingType.MMVWINC:
            self._value_for_circle(self.msAreaList[0].radius)
            cl = float(self.CIR_CL) / float(self.rasterinfo['cols'])
            rl = float(self.CIR_RL) / float(self.rasterinfo['rows'])
            fil.write("SAMPLEAREA -1|-1|%r|%r" % (rl, cl))
            fil.write("|%s" % self.msAreaList[0].raster)
            fil.write("\nMOVINGWINDOW\n")
        ##KUNITSC = samplingtype=units, regionbox=keyboard, shape=cirlce
        ##KUNITSR = samplingtype=units, regionbox=keyboard, shape=rectangle
        elif samtype == SamplingType.KUNITSC or samtype == SamplingType.KUNITSR:
            if samtype == SamplingType.KUNITSC:
                self._circle(self.units.width, self.units.height)
                cl = float(self.CIR_CL) / float(self.rasterinfo['cols'])
                rl = float(self.CIR_RL) / float(self.rasterinfo['rows'])
            else:
                cl = float(self.moving.width) / float(self.rasterinfo['cols'])
                rl = float(self.moving.height) / float(self.rasterinfo['rows'])

            fil.write("SAMPLEAREA -1|-1|%r|%r\n" % (rl, cl))
            if self.units.distrtype == 'non_overlapping':
                fil.write("RANDOMNONOVERLAPPING %s\n" % self.units.distr1)
            elif self.units.distrtype == 'systematic_contiguos':
                fil.write("SYSTEMATICCONTIGUOUS\n")
            elif self.units.distrtype == 'stratified_random':
                fil.write("STRATIFIEDRANDOM %s|%s\n" % (self.units.distr1,
                                                        self.units.distr2))
            elif self.units.distrtype == 'systematic_noncontiguos':
                fil.write("SYSTEMATICNONCONTIGUOUS %s\n" % self.units.distr1)
            elif self.units.distrtype == 'centered_oversites':
                fil.write("")

        # elif self.samplingareapage.samplingtype == SamplingType.UNITS and
        # self.samplingareapage.regionbox=='mouse':

        ##MUNITSC = samplingtype=units, regionbox=mouse, shape=cirlce
        ##MUNITSR = samplingtype=units, regionbox=mouse, shape=rectangle
        elif self.samplingareapage.samplingtype in [SamplingType.MUNITSR,
                                                    SamplingType.MUNITSC]:
            # get the raster region into rastregion
            grass.use_temp_region()
            grass.run_command('g.region', raster=self.startpage.rast)
            rastregion = grass.region()
            s_n = rastregion['n']
            s_w = rastregion['w']
            rows = float(self.rasterinfo['rows'])
            cols = float(self.rasterinfo['cols'])
            for tregion in self.msAreaList:
                if self.samplingareapage.samplingtype == SamplingType.MUNITSC:
                    tregion = tregion.region
                abs_y = abs(
                    round(
                        (float(s_n) - tregion['n']) / tregion
                        ['nsres']))
                abs_x = abs(
                    round(
                        (float(s_w) - tregion['w']) / tregion
                        ['ewres']))
                abs_rl = abs(
                    round(
                        (tregion['n'] - tregion['s']) /
                        tregion['nsres']))
                abs_cl = abs(
                    round(
                        (tregion['e'] - tregion['w']) /
                        tregion['ewres']))

                x = float(abs_x) / float(cols)
                y = float(abs_y) / float(rows)
                rl = float(abs_rl) / float(rows)
                cl = float(abs_cl) / float(cols)
                sarea = str(x) + "|" + str(y) + "|" + str(rl) + "|" + str(cl)
                if self.samplingareapage.samplingtype == SamplingType.MUNITSR:
                    fil.write("SQUAREAREA %s\n" % sarea)
                elif self.samplingareapage.samplingtype == SamplingType.MUNITSC:
                    fil.write("MASKEDSAMPLEAREA %s" % sarea)
                    fil.write("|%s\n" % self.msAreaList[0].raster)

        elif self.samplingareapage.samplingtype == SamplingType.REGIONS:
            rows = float(self.rasterinfo['rows'])
            cols = float(self.rasterinfo['cols'])
            for marea in self.msAreaList:
                gregion = marea.region
                abs_y = self.SF_Y + abs(
                    round((self.SF_N - gregion['n']) / self.SF_NSRES))
                abs_x = self.SF_X + abs(
                    round((self.SF_W - gregion['w']) / self.SF_EWRES))
                abs_rl = abs(
                    round(
                        gregion['n'] -
                        gregion['s']) /
                    self.SF_NSRES)
                abs_cl = abs(
                    round(
                        gregion['e'] -
                        gregion['w']) /
                    self.SF_EWRES)

                x = float(abs_x) / float(cols)
                y = float(abs_y) / float(rows)
                rl = float(abs_rl) / float(rows)
                cl = float(abs_cl) / float(cols)

                maskArea = str(
                    x) + "|" + str(y) + "|" + str(rl) + "|" + str(cl) + "|" + marea.raster
                fil.write("SQUAREAREA %s\n" % maskArea)
        elif self.samplingareapage.samplingtype == SamplingType.VECT:
            for marea in self.msAreaList:
                fil.write(marea)
            fil.write("RASTERMAP {name}\n".format(name=self.startpage.rast))
            fil.write("VECTORMAP {name}\n".format(name=self.startpage.vect))

    def _cleanup(self):
        """Clean all the variables to save into configuration file"""
        self.startpage.conf_name = ''
        self.startpage.rast = ''
        self.startpage.vect = ''
        self.startpage.region = 'whole'
        self.keyboardpage.col_len = ''
        self.keyboardpage.col_up = ''
        self.keyboardpage.row_len = ''
        self.keyboardpage.row_up = ''
        self.samplingareapage.samplingtype = 'whole'
        self.units.width = ''
        self.units.height = ''
        self.units.boxtype = ''
        self.regions.numregions = 0
        self.moving.width = ''
        self.moving.height = ''
        self.moving.boxtype = ''


class FirstPage(TitledPage):
    """
    !Set name of configuration file, choose raster and optionally vector/sites
    """

    def __init__(self, wizard, parent):
        TitledPage.__init__(self, wizard, _("Select maps and define name"))

        self.region = 'whole'
        self.rast = ''
        self.conf_name = ''
        self.vect = ''
        self.VectorEnabled = True

        self.parent = parent

        # name of output configuration file
        self.newconflabel = wx.StaticText(
            parent=self, id=wx.ID_ANY,
            label=_('Name for new configuration file to create'))

        self.newconftxt = wx.TextCtrl(parent=self, id=wx.ID_ANY,
                                      size=(250, -1))
        wx.CallAfter(self.newconftxt.SetFocus)

        self.sizer.Add(self.newconflabel, border=5, pos=(0, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.newconftxt, border=5, pos=(0, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        # raster
        self.mapsellabel = wx.StaticText(
            parent=self, id=wx.ID_ANY,
            label=_('Raster map to use to select areas'))
        self.mapselect = gselect.Select(parent=self, id=wx.ID_ANY,
                                        size=(250, -1), type='cell',
                                        multiple=False)
        self.sizer.Add(self.mapsellabel, border=5, pos=(1, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.mapselect, border=5, pos=(1, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        # vector
        self.vectsellabel = wx.StaticText(
            parent=self, id=wx.ID_ANY,
            label=_('Vector map to use to select areas'))
        self.vectselect = gselect.Select(parent=self, id=wx.ID_ANY,
                                         size=(250, -1), type='vector',
                                         multiple=False)
        self.sizer.Add(self.vectsellabel, border=5, pos=(2, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.vectselect, border=5, pos=(2, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        # vector layer
        self.vectlaylabel = wx.StaticText(
            parent=self, id=wx.ID_ANY,
            label=_('Vector map layer to use to select areas'))
        self.vectlayer = wx.ComboBox(parent=self, id=wx.ID_ANY,
                                     size=(250, -1))
        self.sizer.Add(self.vectlaylabel, border=5, pos=(3, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.vectlayer, border=5, pos=(3, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        # define sampling region
        self.sampling_reg = wx.RadioBox(
            parent=self,
            id=wx.ID_ANY,
            label=" %s " % _(
                "Define sampling "
                "region (region for analysis)"),
            choices=[
                _('Whole map layer'),
                _('Keyboard setting'),
                _('Draw the sampling frame')],
            majorDimension=1,
            style=wx.RA_SPECIFY_ROWS)

        self.sizer.Add(self.sampling_reg,
                       flag=wx.ALIGN_CENTER | wx.ALL | wx.EXPAND, border=5,
                       pos=(5, 0), span=(1, 2))
        self.infoError = wx.StaticText(self, label='')
        self.infoError.SetForegroundColour(wx.RED)
        self.sizer.Add(self.infoError,
                       flag=wx.ALIGN_CENTER | wx.ALL | wx.EXPAND, border=5,
                       pos=(6, 0), span=(1, 2))

        # bindings
        self.sampling_reg.Bind(wx.EVT_RADIOBOX, self.OnSampling)
        self.newconftxt.Bind(wx.EVT_KILL_FOCUS, self.OnName)
        self.newconftxt.Bind(wx.EVT_TEXT, self.OnNameChanged)
        self.vectselect.Bind(wx.EVT_TEXT, self.OnVector)
        self.mapselect.Bind(wx.EVT_TEXT, self.OnRast)
        self.vectlayer.Bind(wx.EVT_TEXT, self.OnLayer)
        self.Bind(wiz.EVT_WIZARD_PAGE_CHANGED, self.OnEnterPage)
        self.Bind(wiz.EVT_WIZARD_PAGE_CHANGING, self.OnExitPage)

        wx.CallAfter(wx.FindWindowById(wx.ID_FORWARD).Enable, False)

    def OnSampling(self, event):
        """Change region type"""
        if event.GetInt() == 0:
            self.region = 'whole'
            self.SetNext(self.parent.samplingareapage)
        elif event.GetInt() == 1:
            self.region = 'key'
            self.SetNext(self.parent.keyboardpage)
        elif event.GetInt() == 2:  # currently disabled
            self.region = 'draw'
            self.SetNext(self.parent.drawsampleframepage)

    def OnName(self, event):
        """Sets the name of configuration file"""
        if self.conf_name in self.parent.parent.listfiles:
            GMessage(
                parent=self, message=_(
                    "The configuration file %s "
                    "already exists, please change name") %
                self.conf_name)
            self.newconftxt.SetValue('')
            self.conf_name = ''

    def OnNameChanged(self, event):
        """Name of configuration file has changed"""
        self.conf_name = self.newconftxt.GetValue()
        next = wx.FindWindowById(wx.ID_FORWARD)
        next.Enable(self.CheckInput())

    def OnRast(self, event):
        """Sets raster map"""
        self.rast = self.mapselect.GetValue()
        next = wx.FindWindowById(wx.ID_FORWARD)
        next.Enable(self.CheckInput())

    def OnVector(self, event):
        """Sets vector map"""
        self.vect = self.vectselect.GetValue()
        if self.vect:
            self.VectorEnabled, layers = self.CheckVector(self.vect)
            if self.VectorEnabled:
                self.vectlayer.SetItems(layers)
                self.vectlayer.SetSelection(0)
                self.vectorlayer = self.vectlayer.GetValue()
                self.infoError.SetLabel('')
            else:
                self.vectlayer.Clear()
                self.vectlayer.SetValue('')
                self.vect = ''
        else:
            self.infoError.SetLabel('')
            self.vectlayer.Clear()
            self.vectlayer.SetValue('')

        next = wx.FindWindowById(wx.ID_FORWARD)
        next.Enable(self.CheckInput())

    def OnLayer(self, event):
        try:
            self.vectorlayer = self.vectlayer.GetValue()
        except:
            self.vectorlayer = None
        next = wx.FindWindowById(wx.ID_FORWARD)
        next.Enable(self.CheckInput())

    def OnEnterPage(self, event):
        """Sets the default values, for the entire map
        """
        next = wx.FindWindowById(wx.ID_FORWARD)
        next.Enable(self.CheckInput())
        wx.CallAfter(wx.FindWindowById(wx.ID_FORWARD).Enable,
                     self.CheckInput())

    def CheckVector(self, vector):
        """Check if the type of vector is area and return the number of
        vector's layer"""
        try:
            areas = gvect.vector_info_topo(vector)['areas']
        except CalledModuleError:
            self.infoError.SetLabel(_("Vector %s was not found, please "
                                      "select another vector") % vector)
            return False, []
        if areas == 0:
            self.infoError.SetLabel(_("Vector %s has no areas, please "
                                      "select another vector") % vector)
            return False, []
        links = gvect.vector_info(vector)['num_dblinks']
        if links == 0:
            self.infoError.SetLabel(_("Vector %s has no table connected, "
                                      "please select another vector") % vector)
            return False, []
        elif links > 0:
            layers = []
            for i in range(1, links + 1):
                layers.append(str(i))
            return True, layers
        else:
            return False, []

    def CheckInput(self):
        """Check input fields.

        :return: True if configuration file is given and raster xor vector map,
                 False otherwise
        """
        return bool(self.conf_name and bool(self.rast and
                                            bool(self.VectorEnabled)))

    def OnExitPage(self, event=None):
        """Function during exiting"""
        next = wx.FindWindowById(wx.ID_FORWARD)
        next.Enable(self.CheckInput())
        if event.GetDirection():
            if self.region == 'key':
                self.SetNext(self.parent.keyboardpage)
                self.parent.samplingareapage.SetPrev(self.parent.keyboardpage)
            elif self.region == 'whole':
                self.SetNext(self.parent.samplingareapage)
                self.parent.samplingareapage.SetPrev(self)
            elif self.region == 'draw':
                self.SetNext(self.parent.drawsampleframepage)
                self.parent.samplingareapage.SetPrev(
                    self.parent.drawsampleframepage)
                return


class KeyboardPage(TitledPage):
    """
    !Choose the region setting the values of border using the keyboard
    """

    def __init__(self, wizard, parent):
        TitledPage.__init__(self, wizard, _("Insert sampling frame parameter"))

        self.parent = parent
        self.col_len = ''
        self.row_len = ''
        self.col_up = '0'
        self.row_up = '0'

        # column up/left
        self.ColUpLeftlabel = wx.StaticText(parent=self, id=wx.ID_ANY,
                                            label=_("Column of upper left "
                                                    "corner"))

        self.ColUpLefttxt = wx.TextCtrl(parent=self, id=wx.ID_ANY,
                                        size=(250, -1))
        wx.CallAfter(self.ColUpLeftlabel.SetFocus)

        self.sizer.Add(self.ColUpLeftlabel, border=5, pos=(1, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.ColUpLefttxt, border=5, pos=(1, 2),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.AddGrowableCol(2)
        # row up/left
        self.RowUpLeftlabel = wx.StaticText(
            parent=self, id=wx.ID_ANY, label=_('Row of upper left corner'))

        self.RowUpLefttxt = wx.TextCtrl(parent=self, id=wx.ID_ANY,
                                        size=(250, -1))
        wx.CallAfter(self.RowUpLeftlabel.SetFocus)

        self.sizer.Add(self.RowUpLeftlabel, border=5, pos=(2, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.RowUpLefttxt, border=5, pos=(2, 2),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)

        # row length
        self.RowLenlabel = wx.StaticText(
            parent=self,
            id=wx.ID_ANY,
            label=_('Row length of sampling frame'))

        self.RowLentxt = wx.TextCtrl(parent=self, id=wx.ID_ANY, size=(250, -1))
        wx.CallAfter(self.RowLenlabel.SetFocus)

        self.sizer.Add(self.RowLenlabel, border=5, pos=(3, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.RowLentxt, border=5, pos=(3, 2),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)

        # column length
        self.ColLenlabel = wx.StaticText(
            parent=self,
            id=wx.ID_ANY,
            label=_('Row length of sampling frame'))

        self.ColLentxt = wx.TextCtrl(parent=self, id=wx.ID_ANY, size=(250, -1))
        wx.CallAfter(self.ColLenlabel.SetFocus)

        self.sizer.Add(self.ColLenlabel, border=5, pos=(4, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.ColLentxt, border=5, pos=(4, 2),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)

        self.ColUpLefttxt.SetValue(self.col_up)
        self.RowUpLefttxt.SetValue(self.row_up)

        self.ColUpLefttxt.Bind(wx.EVT_KILL_FOCUS, self.OnColLeft)
        self.RowUpLefttxt.Bind(wx.EVT_KILL_FOCUS, self.OnRowLeft)
        self.ColLentxt.Bind(wx.EVT_KILL_FOCUS, self.OnColLen)
        self.RowLentxt.Bind(wx.EVT_KILL_FOCUS, self.OnRowLen)
        self.Bind(wiz.EVT_WIZARD_PAGE_CHANGED, self.OnEnterPage)
        self.Bind(wiz.EVT_WIZARD_PAGE_CHANGING, self.OnExitPage)

    def OnColLeft(self, event):
        """Sets the name of configuration file"""
        self.col_up = self.ColUpLefttxt.GetValue()
        checkValue(self.col_up)

    def OnRowLeft(self, event):
        """Sets the name of configuration file"""
        self.row_up = self.RowUpLefttxt.GetValue()
        checkValue(self.row_up)

    def OnColLen(self, event):
        """Sets the name of configuration file"""
        self.col_len = self.ColLentxt.GetValue()
        checkValue(self.col_len)

    def OnRowLen(self, event):
        """Sets the name of configuration file"""
        self.row_len = self.RowLentxt.GetValue()
        checkValue(self.row_len)

    def OnEnterPage(self, event):
        """Sets the default values, for the entire map
        """
        # R# check if raster exists before anything
        if self.col_len == '' and self.row_len == '':
            rastinfo = grast.raster_info(self.parent.startpage.rast)
            self.col_len = rastinfo['cols']
            self.row_len = rastinfo['rows']

        self.ColLentxt.SetValue(self.col_len)
        self.RowLentxt.SetValue(self.row_len)

    def OnExitPage(self, event=None):
        """Function during exiting"""
        if self.row_len == '' or self.col_len == '' or self.row_up == '' or self.col_up == '':
            wx.FindWindowById(wx.ID_FORWARD).Enable(False)
        else:
            wx.FindWindowById(wx.ID_FORWARD).Enable(True)


class DrawSampleFramePage(TitledPage):
    """Choose the region setting the values drawing a box"""

    def __init__(self, wizard, parent):
        TitledPage.__init__(self, wizard, _("Draw sampling frame"))
        self.parent = parent
        self.mapPanel = None
        self.tregion = None
        self.Bind(wiz.EVT_WIZARD_PAGE_CHANGED, self.OnEnterPage)
        self.Bind(wiz.EVT_WIZARD_PAGE_CHANGING, self.OnExitPage)

    def SampleFrameChanged(self, region):
        """"Enables the next dialog when region is set"""
        if region:
            self.tregion = region
            wx.FindWindowById(wx.ID_FORWARD).Enable(True)
        else:
            wx.FindWindowById(wx.ID_FORWARD).Enable(False)

    def OnEnterPage(self, event):
        """Function during entering"""
        if self.mapPanel is None:
            self.mapPanel = RLiSetupMapPanel(self, samplingType='drawFrame')
            self.mapPanel.sampleFrameChanged.connect(self.SampleFrameChanged)
            self.sizer.Add(self.mapPanel, flag=wx.EXPAND, pos=(0, 0))
            self.sizer.AddGrowableCol(0)
            self.sizer.AddGrowableRow(0)
            self._raster = None
        else:
            self.mapPanel._region = {}

        self.SampleFrameChanged(region=None)
        rast = self.parent.startpage.rast
        if self._raster != rast:
            map_ = self.mapPanel.GetMap()
            map_.DeleteAllLayers()
            cmdlist = ['d.rast', 'map=%s' % rast]
            map_.AddLayer(ltype='raster', command=cmdlist, active=True,
                          name=rast, hidden=False, opacity=1.0, render=True)

    def OnExitPage(self, event=None):
        """Function during exiting"""
        if event.GetDirection():
            self.SetNext(self.parent.samplingareapage)
            self.parent.samplingareapage.SetPrev(self)
        else:
            wx.FindWindowById(wx.ID_FORWARD).Enable(True)


class SamplingAreasPage(TitledPage):
    """
    Set name of configuration file, choose raster and optionally vector/sites.
    This is coming after choose the region
    """

    def __init__(self, wizard, parent):
        TitledPage.__init__(self, wizard, _("Insert sampling areas"))
        self.samplingtype = 'whole'
        self.parent = parent
        self.overwriteTemp = False
        # toggles
        self.radioBox = wx.RadioBox(parent=self, id=wx.ID_ANY,
                                    label="",
                                    choices=[_("Whole map layer"),
                                             _("Regions"),
                                             _("Sample units"),
                                             _("Moving window"),
                                             _("Select areas from the\n"
                                               "overlayed vector map")],
                                    majorDimension=1,
                                    style=wx.RA_SPECIFY_COLS | wx.NO_BORDER)
        # layout
        self.sizer.SetVGap(10)
        self.sizer.Add(self.radioBox, flag=wx.ALIGN_LEFT, pos=(0, 0))

        self.regionBox = wx.RadioBox(
            parent=self,
            id=wx.ID_ANY,
            label=_("Choose a method"),
            choices=[
                _('Use keyboard to enter sampling area'),
                _('Use mouse to draw sampling area')],
            majorDimension=1,
            style=wx.RA_SPECIFY_ROWS)
        #self.regionBox.EnableItem(1, False)
        self.regionBox.SetItemToolTip(1, _("This option is not supported yet"))
        self.sizer.Add(self.regionBox, flag=wx.ALIGN_CENTER, pos=(1, 0))

        # bindings
        self.radioBox.Bind(wx.EVT_RADIOBOX, self.SetVal)
        self.regionBox.Bind(wx.EVT_RADIOBOX, self.OnRegionDraw)
        self.regionbox = 'keyboard'

        self.regionPanelSizer = wx.GridBagSizer(1, 2)
        self.regionNumPanel = wx.Panel(parent=self, id=wx.ID_ANY)
        self.regionNumLabel = wx.StaticText(
            parent=self.regionNumPanel, id=wx.ID_ANY,
            label=_('Number of regions to draw:'))
        self.regionNumTxt = wx.TextCtrl(parent=self.regionNumPanel,
                                        id=wx.ID_ANY, size=(50, -1))
        self.regionPanelSizer.Add(self.regionNumLabel, flag=wx.ALIGN_CENTER,
                                  pos=(0, 0))
        self.regionPanelSizer.Add(self.regionNumTxt, flag=wx.ALIGN_CENTER,
                                  pos=(0, 1))

        self.regionNumPanel.SetSizer(self.regionPanelSizer)
        self.sizer.Add(self.regionNumPanel, flag=wx.ALIGN_CENTER, pos=(2, 0))

        self.areaPanelSizer = wx.GridBagSizer(2, 3)
        self.areaPanel = wx.Panel(parent=self, id=wx.ID_ANY)
        self.overwriteText = wx.StaticText(
            parent=self.areaPanel, id=wx.ID_ANY, label=_(
                'Do you want to overwrite existing'
                ' temporal maps if they exist?'))
        self.overwriteCheck = wx.CheckBox(parent=self.areaPanel, id=wx.ID_ANY)
        self.areaText = wx.StaticText(
            parent=self.areaPanel, id=wx.ID_ANY,
            label=_('Do you want to check vector areas?'))
        self.areaOK = wx.Button(self.areaPanel, wx.ID_ANY, 'Yes', (50, 80))
        self.areaOK.SetToolTip(wx.ToolTip(_("Select if use area by area")))
        self.areaNO = wx.Button(self.areaPanel, wx.ID_ANY, 'No', (50, 80))
        self.areaNO.SetToolTip(wx.ToolTip(_("All the features will be used")))
        self.areaOK.Bind(wx.EVT_BUTTON, self.OnVectYes)
        self.areaNO.Bind(wx.EVT_BUTTON, self.OnVectNo)
        self.overwriteCheck.Bind(wx.EVT_CHECKBOX, self.OnOverwrite)
        self.areaPanelSizer.Add(self.overwriteText, flag=wx.ALIGN_CENTER,
                                pos=(0, 0))
        self.areaPanelSizer.Add(self.overwriteCheck, flag=wx.ALIGN_CENTER,
                                pos=(0, 1))
        self.areaPanelSizer.Add(self.areaText, flag=wx.ALIGN_CENTER,
                                pos=(1, 0))
        self.areaPanelSizer.Add(self.areaOK, flag=wx.ALIGN_CENTER, pos=(1, 1))
        self.areaPanelSizer.Add(self.areaNO, flag=wx.ALIGN_CENTER, pos=(1, 2))
        self.areaPanel.SetSizer(self.areaPanelSizer)
        self.sizer.Add(self.areaPanel, flag=wx.ALIGN_CENTER, pos=(3, 0))

        self.calculatingAreas = wx.StaticText(
            parent=self, id=wx.ID_ANY,
            label=_('Analysing all vector features...'))
        self.sizer.Add(self.calculatingAreas, flag=wx.ALIGN_CENTER, pos=(4, 0))
        self.numregions = ''
        self.regionNumTxt.Bind(wx.EVT_TEXT, self.OnNumRegions)
        self.Bind(wiz.EVT_WIZARD_PAGE_CHANGED, self.OnEnterPage)

    def OnNumRegions(self, event):
        """Obtain the number of regions"""
        if self.regionNumTxt.GetValue():
            self.SetNext(self.parent.regions)
            wx.FindWindowById(wx.ID_FORWARD).Enable(True)
            self.numregions = self.regionNumTxt.GetValue()
        else:
            wx.FindWindowById(wx.ID_FORWARD).Enable(False)

    def OnEnterPage(self, event):
        """Insert values into text controls for summary of location
        creation options
        """
        self.SetVal(None)
        if self.parent.startpage.vect:
            self.radioBox.ShowItem(4, True)
            self.vect_data = []
        else:
            self.radioBox.ShowItem(4, False)
        self.sizer.Layout()
        wx.FindWindowById(wx.ID_FORWARD).Enable(True)

    def SetVal(self, event):
        """Choose method"""
        radio = self.radioBox.GetSelection()
        wx.FindWindowById(wx.ID_FORWARD).Enable(True)
        if radio == 0:
            self.samplingtype = SamplingType.WHOLE
            self.DrawNothing()
        elif radio == 1:
            self.samplingtype = SamplingType.REGIONS
            wx.FindWindowById(wx.ID_FORWARD).Enable(False)
        elif radio == 2:
            self.samplingtype = SamplingType.UNITS
            regtype = self.regionBox.GetSelection()
            self.RegionDraw(regtype)
        elif radio == 3:
            self.samplingtype = SamplingType.MVWIN
            regtype = self.regionBox.GetSelection()
            self.RegionDraw(regtype)
        elif radio == 4:
            self.samplingtype = SamplingType.VECT
            wx.FindWindowById(wx.ID_FORWARD).Enable(False)
        self.ShowExtraOptions(self.samplingtype)

    def ShowExtraOptions(self, samtype):
        """Show some extra options for some sampling type"""
        if samtype == SamplingType.REGIONS:
            self.sizer.Hide(self.regionBox)
            self.sizer.Hide(self.areaPanel)
            self.sizer.Hide(self.calculatingAreas)
            self.sizer.Show(self.regionNumPanel)
        elif samtype == SamplingType.UNITS or samtype == SamplingType.MVWIN:
            self.sizer.Hide(self.regionNumPanel)
            self.sizer.Hide(self.areaPanel)
            self.sizer.Hide(self.calculatingAreas)
            self.sizer.Show(self.regionBox)
        elif samtype == SamplingType.VECT:
            self.sizer.Hide(self.regionBox)
            self.sizer.Hide(self.regionNumPanel)
            self.sizer.Hide(self.calculatingAreas)
            self.sizer.Show(self.areaPanel)
        self.sizer.Layout()

    def OnRegionDraw(self, event):
        self.RegionDraw(event.GetInt())
        return

    def OnOverwrite(self, event):
        self.overwriteTemp = self.overwriteCheck.GetValue()
        return

    def OnVectYes(self, event):
        """The user choose to select the vector areas, this function set the
        next page to VectorAreasPage"""
        self.SetNext(self.parent.vectorareas)
        wx.FindWindowById(wx.ID_FORWARD).Enable(True)
        self.parent.wizard.ShowPage(self.parent.vectorareas)

    def OnVectNo(self, event):
        """The user choose to use all the vector areas, this function analyses
        all the vector areas and fill the msAreaList variable"""
        self.sizer.Show(self.calculatingAreas)
        self.sizer.Hide(self.regionNumPanel)
        self.sizer.Hide(self.regionBox)
        self.sizer.Hide(self.areaPanel)
        self.SetNext(self.parent.summarypage)

        vect_cats = obtainCategories(self.parent.startpage.vect,
                                     self.parent.startpage.vectorlayer)

        self._progressDlg = wx.ProgressDialog(
            title=_("Analysing vector"),
            message="Analysing vector",
            maximum=len(vect_cats),
            parent=self,
            style=wx.PD_CAN_ABORT | wx.PD_APP_MODAL | wx.PD_AUTO_HIDE | wx.PD_SMOOTH)
        self._progressDlgMax = len(vect_cats)
        grass.use_temp_region()
        self.parent.msAreaList = sampleAreaVector(
            self.parent.startpage.vect,
            self.parent.startpage.rast,
            vect_cats,
            self.parent.startpage.vectorlayer,
            self.overwriteTemp,
            self._progressDlg)
        grass.del_temp_region()
        if self.parent.msAreaList:
            self.calculatingAreas.SetLabel(_("All feature are been analyzed."))
            wx.FindWindowById(wx.ID_FORWARD).Enable(True)
            self.parent.wizard.ShowPage(self.parent.summarypage)
        else:
            self.calculatingAreas.SetLabel(_("An error occurred"))
        self._progressDlg.Destroy()
        self._progressDlg = None

    def RegionDraw(self, regtype):
        """Set the next page to units or drawunits"""
        if regtype == 0:
            self.regionbox = 'keyboard'
            if self.samplingtype == SamplingType.UNITS:
                self.SetNext(self.parent.units)
            elif self.samplingtype == SamplingType.MVWIN:
                self.SetNext(self.parent.moving)
        elif regtype == 1:
            self.regionbox = 'mouse'
            self.SetNext(self.parent.drawunits)

    def DrawNothing(self):
        """Remove all the optional choices. Used also when the wizard enter in
           SamplingAreasPage, all the optional choices should be hide here"""
        self.sizer.Hide(self.regionNumPanel)
        self.sizer.Hide(self.regionBox)
        self.sizer.Hide(self.areaPanel)
        self.sizer.Hide(self.calculatingAreas)
        self.sizer.Layout()

        self.SetNext(self.parent.summarypage)


class DrawRegionsPage(TitledPage):

    def __init__(self, wizard, parent):
        self.parent = parent
        TitledPage.__init__(self, wizard, _("Draw sampling regions"))
        self.regioncount = 0
        self.mapPanel = None
        self.Bind(wiz.EVT_WIZARD_PAGE_CHANGED, self.OnEnterPage)
        #self.Bind(wiz.EVT_WIZARD_PAGE_CHANGING, self.OnExitPage)

    def afterRegionDrawn(self, marea):
        if marea:
            self.parent.msAreaList.append(marea)

        self.regioncount = self.regioncount + 1
        numregions = int(self.parent.samplingareapage.numregions)

        if self.regioncount > numregions:
            wx.FindWindowById(wx.ID_FORWARD).Enable(True)
            self.parent.wizard.ShowPage(self.parent.summarypage)
        else:
            self.title.SetLabel(_('Draw sample region ' +
                                  str(self.regioncount) + ' of ' +
                                  str(numregions)))
            wx.FindWindowById(wx.ID_FORWARD).Enable(False)

    def OnEnterPage(self, event):
        """Function during entering"""
        if self.parent.samplingareapage.samplingtype == SamplingType.WHOLE:
            self.title.SetLabel(_("Draw moving windows region"))
        elif self.parent.samplingareapage.samplingtype == SamplingType.UNITS:
            self.title.SetLabel(_("Draw sampling region"))
        if self.mapPanel is None:
            self.mapPanel = RLiSetupMapPanel(
                self, samplingType=self.parent.samplingareapage.samplingtype, )
            self.mapPanel.afterRegionDrawn.connect(self.afterRegionDrawn)

            self.sizer.Add(self.mapPanel, flag=wx.EXPAND, pos=(1, 0))
            self.sizer.AddGrowableCol(0)
            self.sizer.AddGrowableRow(1)
            self._raster = None

        rast = self.parent.startpage.rast
        self.afterRegionDrawn(marea=None)

        if self._raster != rast:
            map_ = self.mapPanel.GetMap()
            map_.DeleteAllLayers()
            cmdlist = ['d.rast', 'map=%s' % rast]
            map_.AddLayer(ltype='raster', command=cmdlist, active=True,
                          name=rast, hidden=False, opacity=1.0, render=True)

    # def OnExitPage(self, event=None):
        #!Function during exiting
        # print event.GetDirection()
        # if event.GetDirection():
        #    self.SetNext(self.parent.samplingareapage)
        #    self.parent.samplingareapage.SetPrev(self)


class SampleUnitsKeyPage(TitledPage):
    """Set values from keyboard for sample units
       It is used if you choose keyboard from Sampling Units or Moving windows
       in sampling areas page
    """

    def __init__(self, wizard, parent):
        TitledPage.__init__(self, wizard, _(
            "Select sample units from keyboard"))

        self.parent = parent
        self.scrollPanel = scrolled.ScrolledPanel(parent=self, id=wx.ID_ANY)
        self.scrollPanel.SetupScrolling(scroll_x=False)

        self.panelSizer = wx.GridBagSizer(5, 5)
        self.width = ''
        self.height = ''
        self.boxtype = 'rectangle'
        self.distrtype = 'non_overlapping'
        # type of shape
        self.typeBox = wx.RadioBox(parent=self.scrollPanel, id=wx.ID_ANY,
                                   majorDimension=1, style=wx.RA_SPECIFY_COLS,
                                   label=" %s " % _("Select type of shape"),
                                   choices=[_('Rectangle'), _('Circle'),
                                            ('None')])

        self.panelSizer.Add(self.typeBox, flag=wx.ALIGN_LEFT, pos=(0, 0),
                            span=(1, 2))
        self.widthLabel = wx.StaticText(parent=self.scrollPanel, id=wx.ID_ANY)
        self.widthTxt = wx.TextCtrl(parent=self.scrollPanel, id=wx.ID_ANY,
                                    size=(250, -1))

        self.panelSizer.Add(
            self.widthLabel, pos=(1, 0),
            flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.panelSizer.Add(
            self.widthTxt, pos=(1, 1),
            flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)

        self.heightLabel = wx.StaticText(parent=self.scrollPanel, id=wx.ID_ANY)
        self.heightTxt = wx.TextCtrl(parent=self.scrollPanel, id=wx.ID_ANY,
                                     size=(250, -1))

        self.panelSizer.Add(
            self.heightLabel, pos=(2, 0),
            flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.panelSizer.Add(
            self.heightTxt, pos=(2, 1),
            flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.widthLabels = [_('Width size (in cells)?'),
                            _('What radius size (in meters)?')]
        self.heightLabels = [_('Height size (in cells)?'),
                             _('Name of the circle mask')]

        self.distributionBox = wx.RadioBox(
            parent=self.scrollPanel,
            id=wx.ID_ANY,
            majorDimension=1,
            style=wx.RA_SPECIFY_COLS,
            label=" %s " %
            _("Select method of sampling unit distribution"),
            choices=[
                _('Random non overlapping'),
                _('Systematic contiguos'),
                _('Stratified random'),
                _('Systematic non contiguos'),
                _('Centered over sites')])
        self.panelSizer.Add(self.distributionBox, pos=(3, 0), span=(
            1, 2), flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)

        self.distr1Label = wx.StaticText(parent=self.scrollPanel, id=wx.ID_ANY,
                                         label=_("What number of Sampling "
                                                 "Units to use?"))
        self.distr1Txt = wx.TextCtrl(parent=self.scrollPanel, id=wx.ID_ANY,
                                     size=(250, -1))
        self.panelSizer.Add(
            self.distr1Label, pos=(4, 0),
            flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.panelSizer.Add(
            self.distr1Txt, pos=(4, 1),
            flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.distr2Label = wx.StaticText(parent=self.scrollPanel, id=wx.ID_ANY,
                                         label="")
        self.distr2Txt = wx.TextCtrl(parent=self.scrollPanel, id=wx.ID_ANY,
                                     size=(250, -1))
        self.panelSizer.Add(
            self.distr2Label, pos=(5, 0),
            flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.panelSizer.Add(
            self.distr2Txt, pos=(5, 1),
            flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.panelSizer.Hide(self.distr2Txt)

        self.typeBox.Bind(wx.EVT_RADIOBOX, self.OnType)
        self.distributionBox.Bind(wx.EVT_RADIOBOX, self.OnDistr)
        self.widthTxt.Bind(wx.EVT_TEXT, self.OnWidth)
        self.heightTxt.Bind(wx.EVT_TEXT, self.OnHeight)
        self.distr1Txt.Bind(wx.EVT_TEXT, self.OnDistr1)
        self.distr2Txt.Bind(wx.EVT_TEXT, self.OnDistr2)
        self.Bind(wiz.EVT_WIZARD_PAGE_CHANGED, self.OnEnterPage)
        self.sizer.Add(self.scrollPanel, pos=(0, 0), flag=wx.EXPAND)
        self.sizer.AddGrowableCol(0)
        self.sizer.AddGrowableRow(0)
        self.scrollPanel.SetSizer(self.panelSizer)
        #self.Bind(wiz.EVT_WIZARD_PAGE_CHANGING, self.OnExitPage)
        self.OnType(None)

    def OnEnterPage(self, event=None):
        """Function during entering"""
        # This is an hack to force the user to choose Rectangle or Circle
        self.typeBox.SetSelection(2),
        self.typeBox.ShowItem(2, False)
        self.panelSizer.Layout()

    def OnExitPage(self, event=None):
        """Function during exiting"""
        if event.GetDirection():
            self.SetNext(self.parent.summarypage)
            self.SetPrev(self.parent.samplingareapage)

    def OnType(self, event):
        """Set if rectangle or circle will be used"""
        chosen = self.typeBox.GetSelection()
        self.widthLabel.SetLabel(self.widthLabels[chosen])
        self.heightLabel.SetLabel(self.heightLabels[chosen])
        self.panelSizer.Layout()
        if chosen == 0:
            self.boxtype = 'rectangle'
        else:
            self.boxtype = 'circle'

    def OnDistr(self, event):
        chosen = self.distributionBox.GetSelection()
        if chosen == 0:
            self.distrtype = 'non_overlapping'
            self.distr1Label.SetLabel(
                _("What number of Sampling Units to use?"))
            self.panelSizer.Show(self.distr1Txt)
            self.distr2Label.SetLabel("")
            self.panelSizer.Hide(self.distr2Txt)
            self.panelSizer.Layout()
        elif chosen == 1:
            self.distrtype = 'systematic_contiguos'
            self.distr1Label.SetLabel("")
            self.distr2Label.SetLabel("")
            self.panelSizer.Hide(self.distr1Txt)
            self.panelSizer.Hide(self.distr2Txt)
            self.panelSizer.Layout()
        elif chosen == 2:
            self.distrtype = 'stratified_random'
            self.distr1Label.SetLabel(_("Insert number of row strates"))
            self.distr2Label.SetLabel(_("Insert number of column strates"))
            self.panelSizer.Show(self.distr1Txt)
            self.panelSizer.Show(self.distr2Txt)
            self.panelSizer.Layout()
        elif chosen == 3:
            self.distrtype = 'systematic_noncontiguos'
            self.distr1Label.SetLabel(_("Insert distance between units"))
            self.panelSizer.Show(self.distr1Txt)
            self.distr2Label.SetLabel("")
            self.panelSizer.Hide(self.distr2Txt)
            self.panelSizer.Layout()
        elif chosen == 4:
            self.distrtype = 'centered_oversites'
            self.distr1Label.SetLabel("")
            self.distr2Label.SetLabel("")
            self.panelSizer.Hide(self.distr2Txt)
            self.panelSizer.Hide(self.distr1Txt)
            self.panelSizer.Layout()

    def OnWidth(self, event):
        self.width = self.widthTxt.GetValue()

    def OnHeight(self, event):
        self.height = self.heightTxt.GetValue()

    def OnDistr1(self, event):
        self.distr1 = self.distr1Txt.GetValue()

    def OnDistr2(self, event):
        self.distr2 = self.distr2Txt.GetValue()


class MovingKeyPage(TitledPage):
    """Set values from keyboard for sample units"""

    def __init__(self, wizard, parent):
        TitledPage.__init__(self, wizard, _("Set sample units"))

        self.parent = parent
        self.width = ''
        self.height = ''
        self.boxtype = 'rectangle'
        # type of shape
        self.typeBox = wx.RadioBox(parent=self, id=wx.ID_ANY,
                                   label=" %s " % _("Select type of shape"),
                                   choices=[_('Rectangle'), _('Circle')],
                                   #                                               ('None')],
                                   majorDimension=1,
                                   style=wx.RA_SPECIFY_COLS)

        self.sizer.Add(self.typeBox, flag=wx.ALIGN_LEFT, pos=(1, 1))

        self.typeBox.Bind(wx.EVT_RADIOBOX, self.OnType)
        self.Bind(wiz.EVT_WIZARD_PAGE_CHANGED, self.OnEnterPage)

        self.widthLabel = wx.StaticText(parent=self, id=wx.ID_ANY,
                                        label=_('Width size (in cells)?'))
        self.widthTxt = wx.TextCtrl(parent=self, id=wx.ID_ANY, size=(250, -1))
        self.sizer.Add(self.widthLabel, border=5, pos=(2, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.widthTxt, border=5, pos=(2, 2),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.heightLabel = wx.StaticText(parent=self, id=wx.ID_ANY,
                                         label=_('Height size (in cells)?'))
        self.heightTxt = wx.TextCtrl(parent=self, id=wx.ID_ANY, size=(250, -1))
        self.sizer.Add(self.heightLabel, border=5, pos=(3, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.heightTxt, border=5, pos=(3, 2),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)

        self.sizer.AddGrowableCol(2)
        self.widthLabels = [_('Width size (in cells)?'),
                            _('What radius size (in meters)?')]
        self.heightLabels = [_('Height size (in cells)?'),
                             _('Name of the circle mask')]

        self.widthTxt.Bind(wx.EVT_TEXT, self.OnWidth)
        self.heightTxt.Bind(wx.EVT_TEXT, self.OnHeight)
        wx.FindWindowById(wx.ID_FORWARD).Enable(False)

    def OnEnterPage(self, event):
        # This is an hack to force the user to choose Rectangle or Circle
        #        self.typeBox.SetSelection(2),
        #        self.typeBox.ShowItem(2, False)
        if self.parent.samplingareapage.samplingtype == SamplingType.MVWIN:
            self.title.SetLabel(_("Set moving windows"))
        self.OnType(None)

    def OnType(self, event):
        chosen = self.typeBox.GetSelection()
        self.widthLabel.SetLabel(self.widthLabels[chosen])
        self.heightLabel.SetLabel(self.heightLabels[chosen])
        self.sizer.Layout()
        if chosen == 0:
            self.parent.samplingareapage.samplingtype = SamplingType.KMVWINR
            self.boxtype = 'rectangle'
        elif chosen == 1:
            self.parent.samplingareapage.samplingtype = SamplingType.KMVWINC
            self.boxtype = 'circle'

    def CheckInput(self):
        """Check input fields.

        :return: True if configuration file is given and raster xor
                 vector map, False otherwise
        """
        return bool(self.width and bool(self.height))

    def OnWidth(self, event):
        self.width = self.widthTxt.GetValue()
        next = wx.FindWindowById(wx.ID_FORWARD)
        next.Enable(self.CheckInput())

    def OnHeight(self, event):
        self.height = self.heightTxt.GetValue()
        next = wx.FindWindowById(wx.ID_FORWARD)
        next.Enable(self.CheckInput())


class UnitsMousePage(TitledPage):
    """Choose the sampling area setting the values using the mouse drawing the
       areas with rectangle or circle. It is used both from 'Moving windows'
       and 'Sample units'.
    """

    def __init__(self, wizard, parent):
        self.parent = parent
        self.wizard = wizard
        TitledPage.__init__(self, self.wizard, _("Draw sampling units"))
        self.numregions = ''
        self.mapPanel = None
        # type of shape
        self.typeBox = wx.RadioBox(parent=self, id=wx.ID_ANY,
                                   majorDimension=1, style=wx.RA_SPECIFY_COLS,
                                   label=" %s " % _("Select type of shape"),
                                   choices=[_('Rectangle'), _('Circle'), ('')])
        # This is an hack to force the user to choose Rectangle or Circle
        self.typeBox.SetSelection(2),
        self.typeBox.ShowItem(2, False)
        self.sizer.Add(self.typeBox, flag=wx.ALIGN_LEFT, pos=(0, 0),
                       span=(1, 2))

        self.regionPanelSizer = wx.GridBagSizer(1, 2)
        self.regionNumPanel = wx.Panel(parent=self, id=wx.ID_ANY)
        self.regionNumLabel = wx.StaticText(
            parent=self.regionNumPanel, id=wx.ID_ANY,
            label=_('Number of sampling area to draw:'))
        self.regionNumTxt = wx.TextCtrl(parent=self.regionNumPanel,
                                        id=wx.ID_ANY, size=(50, -1))
        self.regionPanelSizer.Add(self.regionNumLabel, flag=wx.ALIGN_CENTER,
                                  pos=(0, 0))
        self.regionPanelSizer.Add(self.regionNumTxt, flag=wx.ALIGN_CENTER,
                                  pos=(0, 1))

        self.regionNumPanel.SetSizer(self.regionPanelSizer)

        self.sizer.Add(self.regionNumPanel, flag=wx.ALIGN_LEFT, pos=(1, 0),
                       span=(1, 2))

        self.typeBox.Bind(wx.EVT_RADIOBOX, self.OnType)
        self.regionNumTxt.Bind(wx.EVT_TEXT, self.OnNumRegions)
        self.Bind(wiz.EVT_WIZARD_PAGE_CHANGED, self.OnEnterPage)
        self.sizer.AddGrowableCol(0)
        self.OnType(None)
        self.regionNumTxt.SetValue('')

    def OnEnterPage(self, event):
        """Function during entering"""
        if self.numregions:
            wx.FindWindowById(wx.ID_FORWARD).Enable(True)
        else:
            wx.FindWindowById(wx.ID_FORWARD).Enable(False)
        if self.parent.samplingareapage.samplingtype in [SamplingType.MVWIN,
                                                         SamplingType.MMVWINR,
                                                         SamplingType.MMVWINC]:
            self.title.SetLabel(_("Draw moving windows region"))
            self.sizer.Hide(self.regionNumPanel)
            wx.FindWindowById(wx.ID_FORWARD).Enable(True)
        elif self.parent.samplingareapage.samplingtype in [SamplingType.UNITS,
                                                           SamplingType.MUNITSR,
                                                           SamplingType.MUNITSC]:
            self.title.SetLabel(_("Draw sampling region"))
            self.sizer.Show(self.regionNumPanel)
        if self.typeBox.GetSelection() == 2:
            wx.FindWindowById(wx.ID_FORWARD).Enable(False)
        self.sizer.Layout()

    def OnType(self, event):
        chosen = self.typeBox.GetSelection()
        if chosen == 0:
            if self.parent.samplingareapage.samplingtype in [
                    SamplingType.MVWIN, SamplingType.MMVWINR, SamplingType.MMVWINC]:
                self.parent.samplingareapage.samplingtype = SamplingType.MMVWINR
                wx.FindWindowById(wx.ID_FORWARD).Enable(True)
            else:
                self.parent.samplingareapage.samplingtype = SamplingType.MUNITSR
            self.drawtype = 'rectangle'
        else:
            if self.parent.samplingareapage.samplingtype in [
                    SamplingType.MVWIN, SamplingType.MMVWINR, SamplingType.MMVWINC]:
                self.parent.samplingareapage.samplingtype = SamplingType.MMVWINC
                wx.FindWindowById(wx.ID_FORWARD).Enable(True)
            else:
                self.parent.samplingareapage.samplingtype = SamplingType.MUNITSC
            self.drawtype = 'circle'

    def OnNumRegions(self, event):
        """Set the number of region"""
        if self.regionNumTxt.GetValue():
            self.SetNext(self.parent.drawsampleunitspage)
            wx.FindWindowById(wx.ID_FORWARD).Enable(True)
            self.numregions = self.regionNumTxt.GetValue()
        else:
            wx.FindWindowById(wx.ID_FORWARD).Enable(False)

    def OnExitPage(self, event=None):
        """Function during exiting"""
        if event.GetDirection():
            self.SetNext(self.drawsampleunitspage)
            self.SetPrev(self.samplingareapage)


class DrawSampleUnitsPage(TitledPage):
    """Choose the sampling area drawing them"""

    def __init__(self, wizard, parent):
        TitledPage.__init__(self, wizard, _("Draw sampling units"))
        self.parent = parent
        self.mapPanel = None
        self.Bind(wiz.EVT_WIZARD_PAGE_CHANGED, self.OnEnterPage)
        #self.Bind(wiz.EVT_WIZARD_PAGE_CHANGING, self.OnExitPage)

    def SampleFrameChanged(self, region):
        #region = self.GetSampleUnitRegion()
        if region:
            self.parent.msAreaList.append(region)
        self.regioncount = self.regioncount + 1

        drawtype = self.parent.drawunits.drawtype
        if self.regioncount > self.numregions:
            wx.FindWindowById(wx.ID_FORWARD).Enable(True)
            self.parent.wizard.ShowPage(self.parent.summarypage)
        else:
            self.title.SetLabel(_('Draw Sampling ' + drawtype + ' '
                                  + str(self.regioncount) + ' of '
                                  + str(self.numregions)))
            wx.FindWindowById(wx.ID_FORWARD).Enable(False)

    def OnEnterPage(self, event):
        """Function during entering"""

        if self.parent.samplingareapage.samplingtype in [SamplingType.MVWIN,
                                                         SamplingType.MMVWINC,
                                                         SamplingType.MMVWINR]:
            self.numregions = 1
        else:
            self.numregions = int(self.parent.drawunits.numregions)
        self.regioncount = 0
        if self.mapPanel:
            self.sizer.Remove(self.mapPanel)

        gtype = self.parent.drawunits.drawtype
        self.mapPanel = RLiSetupMapPanel(
            self, samplingType=self.parent.samplingareapage.samplingtype, )
        if gtype == 'circle':
            self.mapPanel.afterCircleDrawn.connect(self.SampleFrameChanged)
        else:
            self.mapPanel.sampleFrameChanged.connect(self.SampleFrameChanged)

        self.sizer.Add(self.mapPanel, flag=wx.EXPAND, pos=(1, 0))
        self.sizer.AddGrowableCol(0)
        self.sizer.AddGrowableRow(1)
        self._raster = None

        self.SampleFrameChanged(region=None)
        rast = self.parent.startpage.rast

        if self._raster != rast:
            map_ = self.mapPanel.GetMap()
            map_.DeleteAllLayers()
            cmdlist = ['d.rast', 'map=%s' % rast]
            map_.AddLayer(ltype='raster', command=cmdlist, active=True,
                          name=rast, hidden=False, opacity=1.0, render=True)

    def OnExitPage(self, event=None):
        #!Function during exiting
        print event.GetDirection()

        # if event.GetDirection():
        #    self.SetNext(self.parent.samplingareapage)
        #    self.parent.samplingareapage.SetPrev(self)


class VectorAreasPage(TitledPage):
    """Choose the sampling area using the vector features"""

    def __init__(self, wizard, parent):
        TitledPage.__init__(self, wizard, _("Select sampling areas"))
        self.parent = parent
        self.areascount = 0
        self.mapPanel = None
        self.Bind(wiz.EVT_WIZARD_PAGE_CHANGED, self.OnEnterPage)
        self.Bind(wiz.EVT_WIZARD_PAGE_CHANGING, self.OnExitPage)
        self.areaPanelSizer = wx.GridBagSizer(1, 3)
        self.areaPanel = wx.Panel(parent=self, id=wx.ID_ANY)
        self.areaText = wx.StaticText(parent=self.areaPanel, id=wx.ID_ANY,
                                      label=_('Is this area ok?'))
        self.areaOK = wx.Button(self.areaPanel, wx.ID_ANY, 'Yes', (50, 80))
        self.areaNO = wx.Button(self.areaPanel, wx.ID_ANY, 'No', (50, 80))
        self.areaOK.Bind(wx.EVT_BUTTON, self.OnYes)
        self.areaNO.Bind(wx.EVT_BUTTON, self.OnNo)
        self.areaPanelSizer.Add(self.areaText, flag=wx.ALIGN_CENTER,
                                pos=(0, 0))
        self.areaPanelSizer.Add(self.areaOK, flag=wx.ALIGN_CENTER,
                                pos=(0, 1))
        self.areaPanelSizer.Add(self.areaNO, flag=wx.ALIGN_CENTER,
                                pos=(0, 2))
        self.areaPanel.SetSizer(self.areaPanelSizer)
        self.sizer.Add(self.areaPanel, flag=wx.ALIGN_CENTER, pos=(2, 0))

    def afterRegionDrawn(self):
        """Function to update the title and the number of selected area"""
        self.areascount = self.areascount + 1
        if self.areascount == self.areanum:
            wx.FindWindowById(wx.ID_FORWARD).Enable(True)
            self.areaOK.Enable(False)
            self.areaNO.Enable(False)
            return True
        else:
            self.title.SetLabel(_('Select sample area ' + str(self.areascount + 1)
                                  + ' of ' + str(self.areanum)))
            wx.FindWindowById(wx.ID_FORWARD).Enable(False)
            return False

    def OnYes(self, event):
        """Function to create the string for the conf file if the area
        is selected"""
        self.parent.msAreaList.append(obtainAreaVector(self.outname))
        if not self.afterRegionDrawn():
            self.newCat()

    def OnNo(self, event):
        """Function to pass to the next feature if it is not selected"""
        if not self.afterRegionDrawn():
            self.newCat()

    def newCat(self):
        """Convert to raster and draw the new feature"""
        cat = self.vect_cats[self.areascount]
        self.outpref = "{rast}_{vect}_".format(vect=self.vect.split('@')[0],
                                               rast=self.rast.split('@')[0])
        self.outname = "{pref}{cat}".format(pref=self.outpref, cat=cat)
        # check if raster already axist

        if len(grass.list_strings('raster', pattern=self.outname, mapset='.')
               ) == 1 and not self.parent.samplingareapage.overwriteTemp:
            GError(parent=self, message=_("The raster map <%s> already exists."
                                          " Please remove or rename the maps "
                                          "with the prefix '%s' or select the "
                                          "option to overwrite existing maps"
                                          % (self.outname, self.outpref)))
            self.parent.wizard.ShowPage(self.parent.samplingareapage)
            return
        convertFeature(self.vect, self.outname, cat, self.rast,
                       self.parent.startpage.vectorlayer,
                       self.parent.samplingareapage.overwriteTemp)
        cmdlistcat = ['d.rast', 'map=%s' % self.outname]
        self.map_.AddLayer(ltype='raster', command=cmdlistcat, active=True,
                           name=self.outname, hidden=False, opacity=1.0,
                           render=True)
        for l in self.map_.GetListOfLayers():
            if l.name == self.outname:
                self.mapPanel.mapWindow.ZoomToMap(layers=[l], render=True,
                                                  ignoreNulls=True)
            elif l.name != self.rast:
                self.map_.DeleteLayer(l)
        self.areaText.SetLabel("Is this area (cat={n}) ok?".format(n=cat))

    def OnEnterPage(self, event):
        """Function during entering: draw the raster map and the first vector
        feature"""
        print self.parent.samplingareapage.overwriteTemp
        if self.mapPanel is None:
            self.mapPanel = RLiSetupMapPanel(
                self, samplingType=self.parent.samplingareapage.samplingtype)
            self.sizer.Add(self.mapPanel, flag=wx.EXPAND, pos=(1, 0))
            self.sizer.AddGrowableCol(0)
            self.sizer.AddGrowableRow(1)
            self._raster = None

        self.rast = self.parent.startpage.rast
        self.vect = self.parent.startpage.vect
        self.vect_cats = obtainCategories(
            self.vect, layer=self.parent.startpage.vectorlayer)

        self.areanum = len(self.vect_cats)
        if self.areanum == 0:
            GError(parent=self, message=_("The polygon seems to have 0 areas"))
            self.parent.wizard.ShowPage(self.parent.samplingareapage)
            return
        self.title.SetLabel(_('Select sample area 1 of ' + str(self.areanum)))
        grass.use_temp_region()
        if self._raster != self.rast:
            self.map_ = self.mapPanel.GetMap()
            self.map_.DeleteAllLayers()
            cmdlist = ['d.rast', 'map=%s' % self.rast]
            self.map_.AddLayer(ltype='raster', command=cmdlist, active=True,
                               name=self.rast, hidden=False, opacity=1.0,
                               render=True)
        self.newCat()

    def OnExitPage(self, event=None):
        """Function during exiting"""
        grass.del_temp_region()
#        if event.GetDirection():
#            self.SetNext(self.parent.samplingareapage)
#            self.parent.samplingareapage.SetPrev(self)


class SummaryPage(TitledPage):
    """Shows summary result of choosing data"""

    def __init__(self, wizard, parent):
        TitledPage.__init__(self, wizard, _("Summary"))
        global rlisettings

        self.parent = parent

        # configuration file name
        self.conflabel = wx.StaticText(parent=self, id=wx.ID_ANY,
                                       label=_('Configuration file name:'))
        self.conftxt = wx.StaticText(parent=self, id=wx.ID_ANY,
                                     label="")
        self.sizer.Add(self.conflabel, border=5, pos=(0, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.conftxt, border=5, pos=(0, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        # raster name
        self.rastlabel = wx.StaticText(parent=self, id=wx.ID_ANY,
                                       label=_('Raster name:'))
        self.rasttxt = wx.StaticText(parent=self, id=wx.ID_ANY,
                                     label="")
        self.sizer.Add(self.rastlabel, border=5, pos=(1, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.rasttxt, border=5, pos=(1, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)

        # vector name
        self.vectlabel = wx.StaticText(parent=self, id=wx.ID_ANY,
                                       label=_('Vector name:'))
        self.vecttxt = wx.StaticText(parent=self, id=wx.ID_ANY, label="")
        self.sizer.Add(self.vectlabel, border=5, pos=(2, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.vecttxt, border=5, pos=(2, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)

        # region type name
        self.regionlabel = wx.StaticText(parent=self, id=wx.ID_ANY,
                                         label=_('Region type:'))
        self.regiontxt = wx.StaticText(parent=self, id=wx.ID_ANY, label="")
        self.sizer.Add(self.regionlabel, border=5, pos=(3, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.regiontxt, border=5, pos=(3, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)

        # region keyboard
        self.regionkeylabel = wx.StaticText(parent=self, id=wx.ID_ANY,
                                            label="")
        self.regionkeytxt = wx.StaticText(parent=self, id=wx.ID_ANY, label="")
        self.sizer.Add(self.regionkeylabel, border=5, pos=(4, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.regionkeytxt, border=5, pos=(4, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.Bind(wiz.EVT_WIZARD_PAGE_CHANGED, self.OnEnterPage)
        # sampling area
        self.samplinglabel = wx.StaticText(parent=self, id=wx.ID_ANY,
                                           label=_('Sampling area type:'))
        self.samplingtxt = wx.StaticText(parent=self, id=wx.ID_ANY, label="")
        self.sizer.Add(self.samplinglabel, border=5, pos=(5, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.samplingtxt, border=5, pos=(5, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        # shapetype
        self.shapelabel = wx.StaticText(parent=self, id=wx.ID_ANY, label="")
        self.shapetxt = wx.StaticText(parent=self, id=wx.ID_ANY, label="")
        self.sizer.Add(self.shapelabel, border=5, pos=(6, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.shapetxt, border=5, pos=(6, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        # shapedim
        self.shapewidthlabel = wx.StaticText(parent=self, id=wx.ID_ANY,
                                             label="")
        self.shapewidthtxt = wx.StaticText(parent=self, id=wx.ID_ANY,
                                           label="")
        self.sizer.Add(self.shapewidthlabel, border=5, pos=(7, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.shapewidthtxt, border=5, pos=(7, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.shapeheightlabel = wx.StaticText(parent=self, id=wx.ID_ANY,
                                              label="")
        self.shapeheighttxt = wx.StaticText(parent=self, id=wx.ID_ANY,
                                            label="")
        self.sizer.Add(self.shapeheightlabel, border=5, pos=(8, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.shapeheighttxt, border=5, pos=(8, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        # units type
        self.unitslabel = wx.StaticText(parent=self, id=wx.ID_ANY, label="")
        self.unitstxt = wx.StaticText(parent=self, id=wx.ID_ANY, label="")
        self.sizer.Add(self.unitslabel, border=5, pos=(9, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.unitstxt, border=5, pos=(9, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.unitsmorelabel = wx.StaticText(parent=self, id=wx.ID_ANY,
                                            label="")
        self.unitsmoretxt = wx.StaticText(parent=self, id=wx.ID_ANY, label="")
        self.sizer.Add(self.unitsmorelabel, border=5, pos=(10, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.unitsmoretxt, border=5, pos=(10, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.unitsmorelabel2 = wx.StaticText(parent=self, id=wx.ID_ANY,
                                             label="")
        self.unitsmoretxt2 = wx.StaticText(parent=self, id=wx.ID_ANY, label="")
        self.sizer.Add(self.unitsmorelabel2, border=5, pos=(11, 0),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)
        self.sizer.Add(self.unitsmoretxt2, border=5, pos=(11, 1),
                       flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL | wx.ALL)

    def OnEnterPage(self, event):
        """Insert values into text controls for summary of location
        creation options
        """
        self.conftxt.SetLabel(self.parent.startpage.conf_name)
        self.rasttxt.SetLabel(self.parent.startpage.rast)
        self.samplingtxt.SetLabel(self.parent.samplingareapage.samplingtype)
        self.regiontxt.SetLabel(self.parent.startpage.region)
        self.vecttxt.SetLabel(self.parent.startpage.vect)
        if self.parent.startpage.region == 'key':
            # region keyboard values
            self.regionkeylabel.SetLabel(_('Region keyboard values:'))
            regKeyVals = "Column left up: %s - Row left up: %s\n" \
                         "Column length: %s - Row length: %s\n" % (
                             self.parent.keyboardpage.col_up,
                             self.parent.keyboardpage.row_up,
                             self.parent.keyboardpage.col_len,
                             self.parent.keyboardpage.row_len)
            self.regionkeytxt.SetLabel(regKeyVals)
        else:
            self.regionkeylabel.SetLabel("")
            self.regionkeytxt.SetLabel("")

        if self.parent.samplingareapage.samplingtype == SamplingType.UNITS \
                and self.parent.samplingareapage.regionbox == 'keyboard':
            self.shapelabel.SetLabel(_('Type of shape:'))
            self.shapetxt.SetLabel(self.parent.units.boxtype)
            if self.parent.units.boxtype == 'circle':
                self.shapewidthlabel.SetLabel(_("Radius size:"))
                self.shapeheightlabel.SetLabel(_("Name circle mask:"))
            else:
                self.shapewidthlabel.SetLabel(_("Width size:"))
                self.shapeheightlabel.SetLabel(_("Height size:"))
            self.shapewidthtxt.SetLabel(self.parent.units.width)
            self.shapeheighttxt.SetLabel(self.parent.units.height)
            self.unitslabel.SetLabel(_("Method of distribution:"))
            self.unitstxt.SetLabel(self.parent.units.distrtype)
            if self.parent.units.distrtype == 'non_overlapping':
                self.unitsmorelabel.SetLabel(_("Number sampling units:"))
                self.unitsmoretxt.SetLabel(self.parent.units.distr1)
            elif self.parent.units.distrtype == 'systematic_noncontiguos':
                self.unitsmorelabel.SetLabel(_("Distance between units:"))
                self.unitsmoretxt.SetLabel(self.parent.units.distr1)
            elif self.parent.units.distrtype == 'stratified_random':
                self.unitsmorelabel.SetLabel(_("Number row strates:"))
                self.unitsmoretxt.SetLabel(self.parent.units.distr1)
                self.unitsmorelabel2.SetLabel(_("Number column strates:"))
                self.unitsmoretxt2.SetLabel(self.parent.units.distr2)
        elif self.parent.samplingareapage.samplingtype == SamplingType.UNITS \
                and self.parent.samplingareapage.regionbox == 'mouse':
            self.shapelabel.SetLabel(_('Type of shape:'))
            self.shapetxt.SetLabel(self.parent.units.boxtype)
            self.unitstxt.SetLabel('by mouse')
        elif self.parent.samplingareapage.samplingtype == 'moving':
            self.shapelabel.SetLabel(_('Type of shape:'))
            self.shapetxt.SetLabel(self.parent.moving.boxtype)
            if self.parent.moving.boxtype == 'circle':
                self.shapewidthlabel.SetLabel(_("Radius size:"))
                self.shapeheightlabel.SetLabel(_("Name circle mask:"))
            else:
                self.shapewidthlabel.SetLabel(_("Width size:"))
                self.shapeheightlabel.SetLabel(_("Height size:"))
            self.shapewidthtxt.SetLabel(self.parent.moving.width)
            self.shapeheighttxt.SetLabel(self.parent.moving.height)
        else:
            self.shapelabel.SetLabel("")
            self.shapetxt.SetLabel("")
            self.shapewidthlabel.SetLabel("")
            self.shapewidthtxt.SetLabel("")
            self.shapeheightlabel.SetLabel("")
            self.shapeheighttxt.SetLabel("")