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|
"""!
@package gis_set
GRASS start-up screen.
Initialization module for wxPython GRASS GUI.
Location/mapset management (selection, creation, etc.).
Classes:
- gis_set::GRASSStartup
- gis_set::GListBox
- gis_set::StartUp
(C) 2006-2012 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 Michael Barton and Jachym Cepicky (original author)
@author Martin Landa <landa.martin gmail.com> (various updates)
"""
import os
import sys
import shutil
import copy
import platform
import codecs
import getpass
### i18N
import gettext
gettext.install('grasswxpy', os.path.join(os.getenv("GISBASE"), 'locale'), unicode = True)
if __name__ == "__main__":
sys.path.append(os.path.join(os.getenv('GISBASE'), 'etc', 'gui', 'wxpython'))
from core import globalvar
import wx
import wx.lib.mixins.listctrl as listmix
import wx.lib.scrolledpanel as scrolled
from gui_core.ghelp import HelpFrame
from core.gcmd import GMessage, GError, DecodeString, RunCommand
from core.utils import GetListOfLocations, GetListOfMapsets
from location_wizard.dialogs import RegionDef
from gui_core.dialogs import TextEntryDialog
from gui_core.widgets import GenericValidator
from grass.script import core as grass
sys.stderr = codecs.getwriter('utf8')(sys.stderr)
class GRASSStartup(wx.Frame):
"""!GRASS start-up screen"""
def __init__(self, parent = None, id = wx.ID_ANY, style = wx.DEFAULT_FRAME_STYLE):
#
# GRASS variables
#
self.gisbase = os.getenv("GISBASE")
self.grassrc = self._readGisRC()
self.gisdbase = self.GetRCValue("GISDBASE")
#
# list of locations/mapsets
#
self.listOfLocations = []
self.listOfMapsets = []
self.listOfMapsetsSelectable = []
wx.Frame.__init__(self, parent = parent, id = id, style = style)
self.locale = wx.Locale(language = wx.LANGUAGE_DEFAULT)
self.panel = scrolled.ScrolledPanel(parent = self, id = wx.ID_ANY)
# i18N
import gettext
gettext.install('grasswxpy', os.path.join(os.getenv("GISBASE"), 'locale'), unicode = True)
#
# graphical elements
#
# image
try:
name = os.path.join(globalvar.ETCIMGDIR, "startup_banner.gif")
self.hbitmap = wx.StaticBitmap(self.panel, wx.ID_ANY,
wx.Bitmap(name = name,
type = wx.BITMAP_TYPE_GIF))
except:
self.hbitmap = wx.StaticBitmap(self.panel, wx.ID_ANY, wx.EmptyBitmap(530,150))
# labels
### crashes when LOCATION doesn't exist
versionFile = open(os.path.join(globalvar.ETCDIR, "VERSIONNUMBER"))
grassVersion = versionFile.readline().split(' ')[0].rstrip('\n')
versionFile.close()
self.select_box = wx.StaticBox (parent = self.panel, id = wx.ID_ANY,
label = " %s " % _("Choose project location and mapset"))
self.manage_box = wx.StaticBox (parent = self.panel, id = wx.ID_ANY,
label = " %s " % _("Manage"))
self.lwelcome = wx.StaticText(parent = self.panel, id = wx.ID_ANY,
label = _("Welcome to GRASS GIS %s\n"
"The world's leading open source GIS") % grassVersion,
style = wx.ALIGN_CENTRE)
self.ltitle = wx.StaticText(parent = self.panel, id = wx.ID_ANY,
label = _("Select an existing project location and mapset\n"
"or define a new location"),
style = wx.ALIGN_CENTRE)
self.ldbase = wx.StaticText(parent = self.panel, id = wx.ID_ANY,
label = _("GIS Data Directory:"))
self.llocation = wx.StaticText(parent = self.panel, id = wx.ID_ANY,
label = _("Project location\n(projection/coordinate system)"),
style = wx.ALIGN_CENTRE)
self.lmapset = wx.StaticText(parent = self.panel, id = wx.ID_ANY,
label = _("Accessible mapsets\n(directories of GIS files)"),
style = wx.ALIGN_CENTRE)
self.lcreate = wx.StaticText(parent = self.panel, id = wx.ID_ANY,
label = _("Create new mapset\nin selected location"),
style = wx.ALIGN_CENTRE)
self.ldefine = wx.StaticText(parent = self.panel, id = wx.ID_ANY,
label = _("Define new location"),
style = wx.ALIGN_CENTRE)
self.lmanageloc = wx.StaticText(parent = self.panel, id = wx.ID_ANY,
label = _("Rename/delete selected\nmapset or location"),
style = wx.ALIGN_CENTRE)
# buttons
self.bstart = wx.Button(parent = self.panel, id = wx.ID_ANY,
label = _("Start &GRASS"))
self.bstart.SetDefault()
self.bexit = wx.Button(parent = self.panel, id = wx.ID_EXIT)
self.bstart.SetMinSize((180, self.bexit.GetSize()[1]))
self.bhelp = wx.Button(parent = self.panel, id = wx.ID_HELP)
self.bbrowse = wx.Button(parent = self.panel, id = wx.ID_ANY,
label = _("&Browse"))
self.bmapset = wx.Button(parent = self.panel, id = wx.ID_ANY,
label = _("&Create mapset"))
self.bwizard = wx.Button(parent = self.panel, id = wx.ID_ANY,
label = _("&Location wizard"))
self.bwizard.SetToolTipString(_("Start location wizard."
" After location is created successfully,"
" GRASS session is started."))
self.manageloc = wx.Choice(parent = self.panel, id = wx.ID_ANY,
choices = [_('Rename mapset'), _('Rename location'),
_('Delete mapset'), _('Delete location')])
self.manageloc.SetSelection(0)
# textinputs
self.tgisdbase = wx.TextCtrl(parent = self.panel, id = wx.ID_ANY, value = "", size = (300, -1),
style = wx.TE_PROCESS_ENTER)
# Locations
self.lblocations = GListBox(parent = self.panel,
id = wx.ID_ANY, size = (180, 200),
choices = self.listOfLocations)
self.lblocations.SetColumnWidth(0, 180)
# TODO: sort; but keep PERMANENT on top of list
# Mapsets
self.lbmapsets = GListBox(parent = self.panel,
id = wx.ID_ANY, size = (180, 200),
choices = self.listOfMapsets)
self.lbmapsets.SetColumnWidth(0, 180)
# layout & properties
self._set_properties()
self._do_layout()
# events
self.bbrowse.Bind(wx.EVT_BUTTON, self.OnBrowse)
self.bstart.Bind(wx.EVT_BUTTON, self.OnStart)
self.bexit.Bind(wx.EVT_BUTTON, self.OnExit)
self.bhelp.Bind(wx.EVT_BUTTON, self.OnHelp)
self.bmapset.Bind(wx.EVT_BUTTON, self.OnCreateMapset)
self.bwizard.Bind(wx.EVT_BUTTON, self.OnWizard)
self.manageloc.Bind(wx.EVT_CHOICE, self.OnManageLoc)
self.lblocations.Bind(wx.EVT_LIST_ITEM_SELECTED, self.OnSelectLocation)
self.lbmapsets.Bind(wx.EVT_LIST_ITEM_SELECTED, self.OnSelectMapset)
self.lbmapsets.Bind(wx.EVT_LIST_ITEM_ACTIVATED, self.OnStart)
self.tgisdbase.Bind(wx.EVT_TEXT_ENTER, self.OnSetDatabase)
self.Bind(wx.EVT_CLOSE, self.OnCloseWindow)
def _set_properties(self):
"""!Set frame properties"""
self.SetTitle(_("Welcome to GRASS GIS"))
self.SetIcon(wx.Icon(os.path.join(globalvar.ETCICONDIR, "grass.ico"),
wx.BITMAP_TYPE_ICO))
self.lwelcome.SetForegroundColour(wx.Colour(35, 142, 35))
self.lwelcome.SetFont(wx.Font(13, wx.DEFAULT, wx.NORMAL, wx.BOLD, 0, ""))
self.bstart.SetForegroundColour(wx.Colour(35, 142, 35))
self.bstart.SetToolTipString(_("Enter GRASS session"))
self.bstart.Enable(False)
self.bmapset.Enable(False)
self.manageloc.Enable(False)
# set database
if not self.gisdbase:
# sets an initial path for gisdbase if nothing in GISRC
if os.path.isdir(os.getenv("HOME")):
self.gisdbase = os.getenv("HOME")
else:
self.gisdbase = os.getcwd()
try:
self.tgisdbase.SetValue(self.gisdbase)
except UnicodeDecodeError:
wx.MessageBox(parent = self, caption = _("Error"),
message = _("Unable to set GRASS database. "
"Check your locale settings."),
style = wx.OK | wx.ICON_ERROR | wx.CENTRE)
self.OnSetDatabase(None)
location = self.GetRCValue("LOCATION_NAME")
if location == "<UNKNOWN>" or \
not os.path.isdir(os.path.join(self.gisdbase, location)):
location = None
if location:
# list of locations
self.UpdateLocations(self.gisdbase)
try:
self.lblocations.SetSelection(self.listOfLocations.index(location),
force = True)
self.lblocations.EnsureVisible(self.listOfLocations.index(location))
except ValueError:
print >> sys.stderr, _("ERROR: Location <%s> not found") % location
# list of mapsets
self.UpdateMapsets(os.path.join(self.gisdbase, location))
mapset = self.GetRCValue("MAPSET")
if mapset:
try:
self.lbmapsets.SetSelection(self.listOfMapsets.index(mapset),
force = True)
self.lbmapsets.EnsureVisible(self.listOfMapsets.index(mapset))
except ValueError:
self.lbmapsets.Clear()
print >> sys.stderr, _("ERROR: Mapset <%s> not found") % mapset
def _do_layout(self):
sizer = wx.BoxSizer(wx.VERTICAL)
dbase_sizer = wx.BoxSizer(wx.HORIZONTAL)
location_sizer = wx.BoxSizer(wx.HORIZONTAL)
select_boxsizer = wx.StaticBoxSizer(self.select_box, wx.VERTICAL)
select_sizer = wx.FlexGridSizer(rows = 2, cols = 2, vgap = 4, hgap = 4)
select_sizer.AddGrowableRow(1)
select_sizer.AddGrowableCol(0)
select_sizer.AddGrowableCol(1)
manage_sizer = wx.StaticBoxSizer(self.manage_box, wx.VERTICAL)
btns_sizer = wx.BoxSizer(wx.HORIZONTAL)
# gis data directory
dbase_sizer.Add(item = self.ldbase, proportion = 0,
flag = wx.ALIGN_CENTER_VERTICAL |
wx.ALIGN_CENTER_HORIZONTAL | wx.ALL,
border = 3)
dbase_sizer.Add(item = self.tgisdbase, proportion = 1,
flag = wx.ALIGN_CENTER_VERTICAL | wx.ALL,
border = 3)
dbase_sizer.Add(item = self.bbrowse, proportion = 0,
flag = wx.ALIGN_CENTER_VERTICAL | wx.ALL,
border = 3)
# select sizer
select_sizer.Add(item = self.llocation, proportion = 0,
flag = wx.ALIGN_CENTER_HORIZONTAL | wx.ALL,
border = 3)
select_sizer.Add(item = self.lmapset, proportion = 0,
flag = wx.ALIGN_CENTER_HORIZONTAL | wx.ALL,
border = 3)
select_sizer.Add(item = self.lblocations, proportion = 1,
flag = wx.EXPAND)
select_sizer.Add(item = self.lbmapsets, proportion = 1,
flag = wx.EXPAND)
select_boxsizer.Add(item = select_sizer, proportion = 1,
flag = wx.EXPAND)
# define new location and mapset
manage_sizer.Add(item = self.ldefine, proportion = 0,
flag = wx.ALIGN_CENTER_HORIZONTAL | wx.ALL,
border = 3)
manage_sizer.Add(item = self.bwizard, proportion = 0,
flag = wx.ALIGN_CENTER_HORIZONTAL | wx.BOTTOM,
border = 5)
manage_sizer.Add(item = self.lcreate, proportion = 0,
flag = wx.ALIGN_CENTER_HORIZONTAL | wx.ALL,
border = 3)
manage_sizer.Add(item = self.bmapset, proportion = 0,
flag = wx.ALIGN_CENTER_HORIZONTAL | wx.BOTTOM,
border = 5)
manage_sizer.Add(item = self.lmanageloc, proportion = 0,
flag = wx.ALIGN_CENTER_HORIZONTAL | wx.ALL,
border = 3)
manage_sizer.Add(item = self.manageloc, proportion = 0,
flag = wx.ALIGN_CENTER_HORIZONTAL | wx.BOTTOM,
border = 5)
# location sizer
location_sizer.Add(item = select_boxsizer, proportion = 1,
flag = wx.LEFT | wx.RIGHT | wx.EXPAND,
border = 3)
location_sizer.Add(item = manage_sizer, proportion = 0,
flag = wx.RIGHT | wx.EXPAND,
border = 3)
# buttons
btns_sizer.Add(item = self.bstart, proportion = 0,
flag = wx.ALIGN_CENTER_HORIZONTAL |
wx.ALIGN_CENTER_VERTICAL |
wx.ALL,
border = 5)
btns_sizer.Add(item = self.bexit, proportion = 0,
flag = wx.ALIGN_CENTER_HORIZONTAL |
wx.ALIGN_CENTER_VERTICAL |
wx.ALL,
border = 5)
btns_sizer.Add(item = self.bhelp, proportion = 0,
flag = wx.ALIGN_CENTER_HORIZONTAL |
wx.ALIGN_CENTER_VERTICAL |
wx.ALL,
border = 5)
# main sizer
sizer.Add(item = self.hbitmap,
proportion = 0,
flag = wx.ALIGN_CENTER_VERTICAL |
wx.ALIGN_CENTER_HORIZONTAL |
wx.ALL,
border = 3) # image
sizer.Add(item = self.lwelcome, # welcome message
proportion = 0,
flag = wx.ALIGN_CENTER_VERTICAL |
wx.ALIGN_CENTER_HORIZONTAL |
wx.BOTTOM,
border=1)
sizer.Add(item = self.ltitle, # title
proportion = 0,
flag = wx.ALIGN_CENTER_VERTICAL |
wx.ALIGN_CENTER_HORIZONTAL)
sizer.Add(item = dbase_sizer, proportion = 0,
flag = wx.ALIGN_CENTER_HORIZONTAL |
wx.RIGHT | wx.LEFT | wx.EXPAND,
border = 20) # GISDBASE setting
sizer.Add(item = location_sizer, proportion = 1,
flag = wx.RIGHT | wx.LEFT | wx.EXPAND,
border = 1)
sizer.Add(item = btns_sizer, proportion = 0,
flag = wx.ALIGN_CENTER_VERTICAL |
wx.ALIGN_CENTER_HORIZONTAL |
wx.RIGHT | wx.LEFT,
border = 1)
self.panel.SetAutoLayout(True)
self.panel.SetSizer(sizer)
sizer.Fit(self.panel)
sizer.SetSizeHints(self)
self.Layout()
def _readGisRC(self):
"""
Read variables from $HOME/.grassrc6 file
"""
grassrc = {}
gisrc = os.getenv("GISRC")
if gisrc and os.path.isfile(gisrc):
try:
rc = open(gisrc, "r")
for line in rc.readlines():
try:
key, val = line.split(":", 1)
except ValueError, e:
sys.stderr.write(_('Invalid line in GISRC file (%(e)s):%(l)s\n' % \
{'e': e, 'l': line}))
grassrc[key.strip()] = DecodeString(val.strip())
finally:
rc.close()
return grassrc
def GetRCValue(self, value):
"""!Return GRASS variable (read from GISRC)
"""
if self.grassrc.has_key(value):
return self.grassrc[value]
else:
return None
def OnWizard(self, event):
"""!Location wizard started"""
from location_wizard.wizard import LocationWizard
gWizard = LocationWizard(parent = self,
grassdatabase = self.tgisdbase.GetValue())
if gWizard.location != None:
self.tgisdbase.SetValue(gWizard.grassdatabase)
self.OnSetDatabase(None)
self.UpdateMapsets(os.path.join(self.gisdbase, gWizard.location))
self.lblocations.SetSelection(self.listOfLocations.index(gWizard.location))
self.lbmapsets.SetSelection(0)
self.SetLocation(self.gisdbase, gWizard.location, 'PERMANENT')
if gWizard.georeffile:
message = _("Do you want to import data source <%(name)s> to created location?"
" Default region will be set to match imported map.") % {'name': gWizard.georeffile}
dlg = wx.MessageDialog(parent = self,
message = message,
caption = _("Import data"),
style = wx.YES_NO | wx.YES_DEFAULT | wx.ICON_QUESTION)
dlg.CenterOnScreen()
if dlg.ShowModal() == wx.ID_YES:
self.ImportFile(gWizard.georeffile)
else:
self.SetDefaultRegion(location = gWizard.location)
dlg.Destroy()
else:
self.SetDefaultRegion(location = gWizard.location)
dlg = TextEntryDialog(parent=self,
message=_("Do you want to create new mapset?"),
caption=_("Create new mapset"),
defaultValue=self._getDefaultMapsetName(),
validator=GenericValidator(grass.legal_name, self._nameValidationFailed),
style=wx.OK | wx.CANCEL | wx.HELP)
help = dlg.FindWindowById(wx.ID_HELP)
help.Bind(wx.EVT_BUTTON, self.OnHelp)
if dlg.ShowModal() == wx.ID_OK:
mapsetName = dlg.GetValue()
self.CreateNewMapset(mapsetName)
def SetDefaultRegion(self, location):
"""!Asks to set default region."""
dlg = wx.MessageDialog(parent = self,
message = _("Do you want to set the default "
"region extents and resolution now?"),
caption = _("Location <%s> created") % location,
style = wx.YES_NO | wx.NO_DEFAULT | wx.ICON_QUESTION)
dlg.CenterOnScreen()
if dlg.ShowModal() == wx.ID_YES:
dlg.Destroy()
defineRegion = RegionDef(self, location = location)
defineRegion.CenterOnScreen()
defineRegion.ShowModal()
defineRegion.Destroy()
else:
dlg.Destroy()
def ImportFile(self, filePath):
"""!Tries to import file as vector or raster.
If successfull sets default region from imported map.
"""
returncode, stdout, messagesIfVector = RunCommand('v.in.ogr', dsn = filePath, flags = 'l',
read = True, getErrorMsg = True)
if returncode == 0:
wx.BeginBusyCursor()
wx.Yield()
returncode, messages = RunCommand('v.in.ogr', dsn = filePath,
output = os.path.splitext(os.path.basename(filePath))[0],
getErrorMsg = True)
wx.EndBusyCursor()
if returncode != 0:
message = _("Import of vector data source <%(name)s> failed.") % {'name': filePath}
message += "\n" + messages
GError(message = message)
else:
GMessage(message = _("Vector data source <%(name)s> imported successfully.") % {'name': filePath})
stdout = RunCommand('g.list', type = 'vect', read = True)
maps = stdout.splitlines()
if maps:
# TODO: what about resolution?
RunCommand('g.region', flags = 's', vect = maps[0])
else:
wx.BeginBusyCursor()
wx.Yield()
returncode, messages = RunCommand('r.in.gdal', input = filePath,
output = os.path.splitext(os.path.basename(filePath))[0],
getErrorMsg = True)
wx.EndBusyCursor()
if returncode != 0:
message = _("Attempt to import data source <%(name)s> as raster or vector failed. ") % {'name': filePath}
message += "\n\n" + messagesIfVector + "\n" + messages
GError(message = message)
else:
GMessage(message = _("Raster data source <%(name)s> imported successfully.") % {'name': filePath})
stdout = RunCommand('g.list', type = 'rast', read = True)
maps = stdout.splitlines()
if maps:
RunCommand('g.region', flags = 's', rast = maps[0])
def OnManageLoc(self, event):
"""!Location management choice control handler
"""
sel = event.GetSelection()
if sel == 0:
self.RenameMapset()
elif sel == 1:
self.RenameLocation()
elif sel == 2:
self.DeleteMapset()
elif sel == 3:
self.DeleteLocation()
event.Skip()
def RenameMapset(self):
"""!Rename selected mapset
"""
location = self.listOfLocations[self.lblocations.GetSelection()]
mapset = self.listOfMapsets[self.lbmapsets.GetSelection()]
if mapset == 'PERMANENT':
GMessage(parent = self,
message = _('Mapset <PERMANENT> is required for valid GRASS location.\n\n'
'This mapset cannot be renamed.'))
return
dlg = TextEntryDialog(parent = self,
message = _('Current name: %s\n\nEnter new name:') % mapset,
caption = _('Rename selected mapset'),
validator = GenericValidator(grass.legal_name, self._nameValidationFailed))
if dlg.ShowModal() == wx.ID_OK:
newmapset = dlg.GetValue()
if newmapset == mapset:
dlg.Destroy()
return
if newmapset in self.listOfMapsets:
wx.MessageBox(parent = self,
caption = _('Message'),
message = _('Unable to rename mapset.\n\n'
'Mapset <%s> already exists in location.') % newmapset,
style = wx.OK | wx.ICON_INFORMATION | wx.CENTRE)
else:
try:
os.rename(os.path.join(self.gisdbase, location, mapset),
os.path.join(self.gisdbase, location, newmapset))
self.OnSelectLocation(None)
self.lbmapsets.SetSelection(self.listOfMapsets.index(newmapset))
except StandardError, e:
wx.MessageBox(parent = self,
caption = _('Error'),
message = _('Unable to rename mapset.\n\n%s') % e,
style = wx.OK | wx.ICON_ERROR | wx.CENTRE)
dlg.Destroy()
def RenameLocation(self):
"""!Rename selected location
"""
location = self.listOfLocations[self.lblocations.GetSelection()]
dlg = TextEntryDialog(parent = self,
message = _('Current name: %s\n\nEnter new name:') % location,
caption = _('Rename selected location'),
validator = GenericValidator(grass.legal_name, self._nameValidationFailed))
if dlg.ShowModal() == wx.ID_OK:
newlocation = dlg.GetValue()
if newlocation == location:
dlg.Destroy()
return
if newlocation in self.listOfLocations:
wx.MessageBox(parent = self,
caption = _('Message'),
message = _('Unable to rename location.\n\n'
'Location <%s> already exists in GRASS database.') % newlocation,
style = wx.OK | wx.ICON_INFORMATION | wx.CENTRE)
else:
try:
os.rename(os.path.join(self.gisdbase, location),
os.path.join(self.gisdbase, newlocation))
self.UpdateLocations(self.gisdbase)
self.lblocations.SetSelection(self.listOfLocations.index(newlocation))
self.UpdateMapsets(newlocation)
except StandardError, e:
wx.MessageBox(parent = self,
caption = _('Error'),
message = _('Unable to rename location.\n\n%s') % e,
style = wx.OK | wx.ICON_ERROR | wx.CENTRE)
dlg.Destroy()
def DeleteMapset(self):
"""!Delete selected mapset
"""
location = self.listOfLocations[self.lblocations.GetSelection()]
mapset = self.listOfMapsets[self.lbmapsets.GetSelection()]
if mapset == 'PERMANENT':
GMessage(parent = self,
message = _('Mapset <PERMANENT> is required for valid GRASS location.\n\n'
'This mapset cannot be deleted.'))
return
dlg = wx.MessageDialog(parent = self, message = _("Do you want to continue with deleting mapset <%(mapset)s> "
"from location <%(location)s>?\n\n"
"ALL MAPS included in this mapset will be "
"PERMANENTLY DELETED!") % {'mapset' : mapset,
'location' : location},
caption = _("Delete selected mapset"),
style = wx.YES_NO | wx.NO_DEFAULT | wx.ICON_QUESTION)
if dlg.ShowModal() == wx.ID_YES:
try:
shutil.rmtree(os.path.join(self.gisdbase, location, mapset))
self.OnSelectLocation(None)
self.lbmapsets.SetSelection(0)
except:
wx.MessageBox(message = _('Unable to delete mapset'))
dlg.Destroy()
def DeleteLocation(self):
"""
Delete selected location
"""
location = self.listOfLocations[self.lblocations.GetSelection()]
dlg = wx.MessageDialog(parent = self, message = _("Do you want to continue with deleting "
"location <%s>?\n\n"
"ALL MAPS included in this location will be "
"PERMANENTLY DELETED!") % (location),
caption = _("Delete selected location"),
style = wx.YES_NO | wx.NO_DEFAULT | wx.ICON_QUESTION)
if dlg.ShowModal() == wx.ID_YES:
try:
shutil.rmtree(os.path.join(self.gisdbase, location))
self.UpdateLocations(self.gisdbase)
self.lblocations.SetSelection(0)
self.OnSelectLocation(None)
self.lbmapsets.SetSelection(0)
except:
wx.MessageBox(message = _('Unable to delete location'))
dlg.Destroy()
def UpdateLocations(self, dbase):
"""!Update list of locations"""
try:
self.listOfLocations = GetListOfLocations(dbase)
except UnicodeEncodeError:
wx.MessageBox(parent = self, caption = _("Error"),
message = _("Unable to set GRASS database. "
"Check your locale settings."),
style = wx.OK | wx.ICON_ERROR | wx.CENTRE)
self.lblocations.Clear()
self.lblocations.InsertItems(self.listOfLocations, 0)
if len(self.listOfLocations) > 0:
self.lblocations.SetSelection(0)
else:
self.lblocations.SetSelection(wx.NOT_FOUND)
return self.listOfLocations
def UpdateMapsets(self, location):
"""!Update list of mapsets"""
self.FormerMapsetSelection = wx.NOT_FOUND # for non-selectable item
self.listOfMapsetsSelectable = list()
self.listOfMapsets = GetListOfMapsets(self.gisdbase, location)
self.lbmapsets.Clear()
# disable mapset with denied permission
locationName = os.path.basename(location)
ret = RunCommand('g.mapset',
read = True,
flags = 'l',
location = locationName,
gisdbase = self.gisdbase)
if ret:
for line in ret.splitlines():
self.listOfMapsetsSelectable += line.split(' ')
else:
RunCommand("g.gisenv",
set = "GISDBASE=%s" % self.gisdbase)
RunCommand("g.gisenv",
set = "LOCATION_NAME=%s" % locationName)
RunCommand("g.gisenv",
set = "MAPSET=PERMANENT")
# first run only
self.listOfMapsetsSelectable = copy.copy(self.listOfMapsets)
disabled = []
idx = 0
for mapset in self.listOfMapsets:
if mapset not in self.listOfMapsetsSelectable or \
os.path.isfile(os.path.join(self.gisdbase,
locationName,
mapset, ".gislock")):
disabled.append(idx)
idx += 1
self.lbmapsets.InsertItems(self.listOfMapsets, 0, disabled = disabled)
return self.listOfMapsets
def OnSelectLocation(self, event):
"""!Location selected"""
if event:
self.lblocations.SetSelection(event.GetIndex())
if self.lblocations.GetSelection() != wx.NOT_FOUND:
self.UpdateMapsets(os.path.join(self.gisdbase,
self.listOfLocations[self.lblocations.GetSelection()]))
else:
self.listOfMapsets = []
disabled = []
idx = 0
try:
locationName = self.listOfLocations[self.lblocations.GetSelection()]
except IndexError:
locationName = ''
for mapset in self.listOfMapsets:
if mapset not in self.listOfMapsetsSelectable or \
os.path.isfile(os.path.join(self.gisdbase,
locationName,
mapset, ".gislock")):
disabled.append(idx)
idx += 1
self.lbmapsets.Clear()
self.lbmapsets.InsertItems(self.listOfMapsets, 0, disabled = disabled)
if len(self.listOfMapsets) > 0:
self.lbmapsets.SetSelection(0)
if locationName:
# enable start button when location and mapset is selected
self.bstart.Enable()
self.bmapset.Enable()
self.manageloc.Enable()
else:
self.lbmapsets.SetSelection(wx.NOT_FOUND)
self.bstart.Enable(False)
self.bmapset.Enable(False)
self.manageloc.Enable(False)
def OnSelectMapset(self, event):
"""!Mapset selected"""
self.lbmapsets.SetSelection(event.GetIndex())
if event.GetText() not in self.listOfMapsetsSelectable:
self.lbmapsets.SetSelection(self.FormerMapsetSelection)
else:
self.FormerMapsetSelection = event.GetIndex()
event.Skip()
def OnSetDatabase(self, event):
"""!Database set"""
self.gisdbase = self.tgisdbase.GetValue()
self.UpdateLocations(self.gisdbase)
self.OnSelectLocation(None)
def OnBrowse(self, event):
"""'Browse' button clicked"""
if not event:
defaultPath = os.getenv('HOME')
else:
defaultPath = ""
dlg = wx.DirDialog(parent = self, message = _("Choose GIS Data Directory"),
defaultPath = defaultPath, style = wx.DD_DEFAULT_STYLE)
if dlg.ShowModal() == wx.ID_OK:
self.gisdbase = dlg.GetPath()
self.tgisdbase.SetValue(self.gisdbase)
self.OnSetDatabase(event)
dlg.Destroy()
def OnCreateMapset(self, event):
"""!Create new mapset"""
dlg = TextEntryDialog(parent = self,
message = _('Enter name for new mapset:'),
caption = _('Create new mapset'),
defaultValue = self._getDefaultMapsetName(),
validator = GenericValidator(grass.legal_name, self._nameValidationFailed))
if dlg.ShowModal() == wx.ID_OK:
mapset = dlg.GetValue()
return self.CreateNewMapset(mapset = mapset)
else:
return False
def CreateNewMapset(self, mapset):
if mapset in self.listOfMapsets:
GMessage(parent = self,
message = _("Mapset <%s> already exists.") % mapset)
return False
try:
self.gisdbase = self.tgisdbase.GetValue()
location = self.listOfLocations[self.lblocations.GetSelection()]
os.mkdir(os.path.join(self.gisdbase, location, mapset))
# copy WIND file and its permissions from PERMANENT and set permissions to u+rw,go+r
shutil.copy(os.path.join(self.gisdbase, location, 'PERMANENT', 'WIND'),
os.path.join(self.gisdbase, location, mapset))
# os.chmod(os.path.join(database,location,mapset,'WIND'), 0644)
self.OnSelectLocation(None)
self.lbmapsets.SetSelection(self.listOfMapsets.index(mapset))
self.bstart.SetFocus()
return True
except StandardError, e:
GError(parent = self,
message = _("Unable to create new mapset: %s") % e,
showTraceback = False)
return False
def OnStart(self, event):
"""'Start GRASS' button clicked"""
dbase = self.tgisdbase.GetValue()
location = self.listOfLocations[self.lblocations.GetSelection()]
mapset = self.listOfMapsets[self.lbmapsets.GetSelection()]
lockfile = os.path.join(dbase, location, mapset, '.gislock')
if os.path.isfile(lockfile):
dlg = wx.MessageDialog(parent = self,
message = _("GRASS is already running in selected mapset <%(mapset)s>\n"
"(file %(lock)s found).\n\n"
"Concurrent use not allowed.\n\n"
"Do you want to try to remove .gislock (note that you "
"need permission for this operation) and continue?") %
{ 'mapset' : mapset, 'lock' : lockfile },
caption = _("Lock file found"),
style = wx.YES_NO | wx.NO_DEFAULT |
wx.ICON_QUESTION | wx.CENTRE)
ret = dlg.ShowModal()
dlg.Destroy()
if ret == wx.ID_YES:
dlg1 = wx.MessageDialog(parent = self,
message = _("ARE YOU REALLY SURE?\n\n"
"If you really are running another GRASS session doing this "
"could corrupt your data. Have another look in the processor "
"manager just to be sure..."),
caption = _("Lock file found"),
style = wx.YES_NO | wx.NO_DEFAULT |
wx.ICON_QUESTION | wx.CENTRE)
ret = dlg1.ShowModal()
dlg1.Destroy()
if ret == wx.ID_YES:
try:
os.remove(lockfile)
except IOError, e:
GError(_("Unable to remove '%(lock)s'.\n\n"
"Details: %(reason)s") % { 'lock' : lockfile, 'reason' : e})
else:
return
else:
return
self.SetLocation(dbase, location, mapset)
self.ExitSuccessfully()
def SetLocation(self, dbase, location, mapset):
RunCommand("g.gisenv",
set = "GISDBASE=%s" % dbase)
RunCommand("g.gisenv",
set = "LOCATION_NAME=%s" % location)
RunCommand("g.gisenv",
set = "MAPSET=%s" % mapset)
def _getDefaultMapsetName(self):
"""!Returns default name for mapset."""
try:
defaultName = getpass.getuser()
defaultName.encode('ascii') # raise error if not ascii (not valid mapset name)
except: # whatever might go wrong
defaultName = 'user'
return defaultName
def ExitSuccessfully(self):
self.Destroy()
sys.exit(0)
def OnExit(self, event):
"""'Exit' button clicked"""
self.Destroy()
sys.exit (2)
def OnHelp(self, event):
"""'Help' button clicked"""
# help text in lib/init/helptext.html
filePath = os.path.join(self.gisbase, "docs", "html", "helptext.html")
import webbrowser
webbrowser.open(filePath)
def OnCloseWindow(self, event):
"""!Close window event"""
event.Skip()
sys.exit(2)
def _nameValidationFailed(self, ctrl):
message = _("Name <%(name)s> is not a valid name for location or mapset. "
"Please use only ASCII characters excluding %(chars)s "
"and space.") % {'name': ctrl.GetValue(), 'chars': '/"\'@,=*~'}
GError(parent=self, message=message, caption=_("Invalid name"))
class GListBox(wx.ListCtrl, listmix.ListCtrlAutoWidthMixin):
"""!Use wx.ListCtrl instead of wx.ListBox, different style for
non-selectable items (e.g. mapsets with denied permission)"""
def __init__(self, parent, id, size,
choices, disabled = []):
wx.ListCtrl.__init__(self, parent, id, size = size,
style = wx.LC_REPORT | wx.LC_NO_HEADER | wx.LC_SINGLE_SEL |
wx.BORDER_SUNKEN)
listmix.ListCtrlAutoWidthMixin.__init__(self)
self.InsertColumn(0, '')
self.selected = wx.NOT_FOUND
self._LoadData(choices, disabled)
def _LoadData(self, choices, disabled = []):
"""!Load data into list
@param choices list of item
@param disabled list of indeces of non-selectable items
"""
idx = 0
for item in choices:
index = self.InsertStringItem(sys.maxint, item)
self.SetStringItem(index, 0, item)
if idx in disabled:
self.SetItemTextColour(idx, wx.Colour(150, 150, 150))
idx += 1
def Clear(self):
self.DeleteAllItems()
def InsertItems(self, choices, pos, disabled = []):
self._LoadData(choices, disabled)
def SetSelection(self, item, force = False):
if item != wx.NOT_FOUND and \
(platform.system() != 'Windows' or force):
### Windows -> FIXME
self.SetItemState(item, wx.LIST_STATE_SELECTED, wx.LIST_STATE_SELECTED)
self.selected = item
def GetSelection(self):
return self.selected
class StartUp(wx.App):
"""!Start-up application"""
def OnInit(self):
if not globalvar.CheckWxVersion([2, 9]):
wx.InitAllImageHandlers()
StartUp = GRASSStartup()
StartUp.CenterOnScreen()
self.SetTopWindow(StartUp)
StartUp.Show()
if StartUp.GetRCValue("LOCATION_NAME") == "<UNKNOWN>":
wx.MessageBox(parent = StartUp,
caption = _('Starting GRASS for the first time'),
message = _('GRASS needs a directory in which to store its data. '
'Create one now if you have not already done so. '
'A popular choice is "grassdata", located in '
'your home directory.'),
style = wx.OK | wx.ICON_ERROR | wx.CENTRE)
StartUp.OnBrowse(None)
return 1
if __name__ == "__main__":
if os.getenv("GISBASE") is None:
sys.exit("Failed to start GUI, GRASS GIS is not running.")
import gettext
gettext.install('grasswxpy', os.path.join(os.getenv("GISBASE"), 'locale'), unicode = True)
GRASSStartUp = StartUp(0)
GRASSStartUp.MainLoop()
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