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#!/usr/bin/env python |
# Copyright (c) 2003 by Intevation GmbH |
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# generated by wxGlade 0.2.1 on Thu Apr 17 11:51:39 2003 |
# Authors: |
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# Jonathan Coles <[email protected]> |
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# |
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# This program is free software under the GPL (>=v2) |
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# Read the file COPYING coming with Thuban for details. |
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import os, sys |
import os, sys |
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from wxPython.wx import * |
from wxPython.wx import * |
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class ProjFrame(NonModalDialog): |
class ProjFrame(NonModalDialog): |
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def __init__(self, parent, name, receiver, *args, **kwds): |
def __init__(self, parent, name, title, receiver): |
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"""Initialize the projection dialog. |
"""Initialize the projection dialog. |
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receiver -- An object that implements the following methods: |
receiver -- An object that implements the following methods: |
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""" |
""" |
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self.receiver = receiver |
self.receiver = receiver |
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self.originalProjection = -1 |
self.haveTried = False |
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self.curProjPanel = None |
self.curProjPanel = None |
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self.projPanels = [] |
self.projPanels = [] |
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self.projPanels.append( |
self.projPanels.append( |
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("latlong", _("Geographic"), GeoPanel)) |
("latlong", _("Geographic"), GeoPanel)) |
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NonModalDialog.__init__(self, parent, name, "") |
NonModalDialog.__init__(self, parent, name, title) |
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# originally generate by wxGlade |
# originally generate by wxGlade |
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self.panel_1 = wxPanel(self, -1) |
self.panel_1 = wxPanel(self, -1) |
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self.panel_edit = wxPanel(self, -1) |
self.panel_edit = wxPanel(self, -1) |
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self.__do_layout() |
self.__do_layout() |
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# wxGlade |
# wxGlade |
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self.originalProjection = self.receiver.GetProjection() |
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self.__DoOnProjAvail() |
self.__DoOnProjAvail() |
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EVT_BUTTON(self, ID_PROJ_TRY, self._OnTry) |
EVT_BUTTON(self, ID_PROJ_TRY, self._OnTry) |
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EVT_TEXT(self, ID_PROJ_PROJNAME, self._OnProjName) |
EVT_TEXT(self, ID_PROJ_PROJNAME, self._OnProjName) |
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def GetReceiver(self): |
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return self.receiver |
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def _OnTry(self, event): |
def _OnTry(self, event): |
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self.__SetProjection() |
self.__SetProjection() |
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self.haveTried = True |
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def _OnRevert(self, event): |
def _OnRevert(self, event): |
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if self.originalProjection != -1: |
if self.haveTried: |
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self.receiver.SetProjection(self.originalProjection) |
self.receiver.SetProjection(self.originalProjection) |
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self.haveTried = False |
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def _OnOK(self, event): |
def _OnOK(self, event): |
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self.__SetProjection() |
self.__SetProjection() |
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self.Close() |
self.Close() |
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def _OnNew(self, event): |
def _OnNew(self, event): |
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self.__DoOnNew() |
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# clear all selections |
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sel = self.availprojs.GetSelections() |
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for index in sel: |
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self.availprojs.SetSelection(index, False) |
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self.projname.Clear() |
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# supply a projection panel if there wasn't one |
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if self.curProjPanel is None: |
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self.projchoice.SetSelection(0) |
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self.__DoOnProjChoice() |
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self.curProjPanel.Clear() |
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def _OnSave(self, event): |
def _OnSave(self, event): |
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newproj = self.__GetProjection() |
newproj = self.__GetProjection() |
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if newproj is not None: |
if newproj is not None: |
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projfile.Remove(proj) |
projfile.Replace(proj, newproj) |
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projfile.Add(newproj) |
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try: |
try: |
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WriteProjFile(projfile) |
WriteProjFile(projfile) |
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except IOError, (errno, errstr): |
except IOError, (errno, errstr): |
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wxMessageDialog(self, |
self.__ShowError(projfile.GetFilename(), errstr) |
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_("The following error occured:\n") + |
self.availprojs.SetClientData([newproj, projfile]) |
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projfile.GetFilename() + "\n" + errstr, |
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_("Error"), wxOK | wxICON_ERROR).ShowModal() |
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self.__FillAvailList() |
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def _OnAddToList(self, event): |
def _OnAddToList(self, event): |
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try: |
try: |
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WriteProjFile(self.__usrProjFile) |
WriteProjFile(self.__usrProjFile) |
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except IOError, (errno, errstr): |
except IOError, (errno, errstr): |
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wxMessageDialog(self, |
self.__ShowError(self.__userProjFile.GetFilename(), errstr) |
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_("The following error occured:\n") + |
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self.__usrProjFile.GetFilename() + "\n" + errstr, |
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_("Error"), wxOK | wxICON_ERROR).ShowModal() |
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self.__FillAvailList() |
self.__FillAvailList() |
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def _OnProjAvail(self, event): |
def _OnProjAvail(self, event): |
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self.__usrProjFile.Add(proj) |
self.__usrProjFile.Add(proj) |
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WriteProjFile(self.__usrProjFile) |
WriteProjFile(self.__usrProjFile) |
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except IOError, (errno, errstr): |
except IOError, (errno, errstr): |
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wxMessageDialog(self, |
self.__ShowError(dlg.GetPath(), errstr) |
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_("The following error occured:\n") + |
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dlg.GetPath() + "\n" + errstr, |
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_("Error"), wxOK | wxICON_ERROR).ShowModal() |
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self.__FillAvailList() |
self.__FillAvailList() |
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try: |
try: |
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WriteProjFile(projFile) |
WriteProjFile(projFile) |
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except IOError, (errno, errstr): |
except IOError, (errno, errstr): |
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wxMessageDialog(self, |
self.__ShowError(dlg.GetPath(), errstr) |
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_("The following error occured:\n") + |
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dlg.GetPath() + "\n" + errstr, |
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_("Error"), wxOK | wxICON_ERROR).ShowModal() |
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dlg.Destroy() |
dlg.Destroy() |
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try: |
try: |
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WriteProjFile(projfile) |
WriteProjFile(projfile) |
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except IOError, (errno, errstr): |
except IOError, (errno, errstr): |
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wxMessageDialog(self, |
self.__ShowError(projfile.GetFilename(), errstr) |
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_("The following error occured:\n") + |
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projfile.GetFilename() + "\n" + errstr, |
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_("Error"), wxOK | wxICON_ERROR).ShowModal() |
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self.__FillAvailList() |
self.__FillAvailList() |
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if newselection != -1 and self.availprojs.GetCount() > 0: |
if newselection != -1 and self.availprojs.GetCount() > 0: |
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self.availprojs.SetSelection(newselection) |
self.availprojs.SetSelection(newselection) |
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self.__VerifyButtons() |
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def _OnProjName(self, event): |
def _OnProjName(self, event): |
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self.__VerifyButtons() |
self.__VerifyButtons() |
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def __ShowError(self, filename, errstr): |
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wxMessageDialog(self, |
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_("The following error occured:\n") + |
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filename + "\n" + errstr, |
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_("Error"), wxOK | wxICON_ERROR).ShowModal() |
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def __VerifyButtons(self): |
def __VerifyButtons(self): |
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"""Enable or disable the appropriate buttons based on the |
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current state of the dialog. |
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""" |
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sel = self.availprojs.GetSelections() |
sel = self.availprojs.GetSelections() |
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self.button_import.Enable(True) |
self.button_import.Enable(True) |
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self.panel_edit.Enable(True) |
self.panel_edit.Enable(True) |
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for ctrl in [self.button_import, |
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self.button_export, |
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self.button_remove, |
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self.button_save, |
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self.button_add, |
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self.projchoice, |
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self.projname, |
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self.panel_edit]: |
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ctrl.Enable(True) |
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if self.curProjPanel is not None: |
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self.curProjPanel.Enable(True) |
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if len(sel) == 0: |
if len(sel) == 0: |
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self.button_import.Enable(True) |
self.button_import.Enable(True) |
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self.button_export.Enable(False) |
self.button_export.Enable(False) |
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self.button_add.Enable(len(self.projname.GetValue()) > 0) |
self.button_add.Enable(len(self.projname.GetValue()) > 0) |
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if proj is None: |
if proj is None: |
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self.button_export.Enable(False) |
# <None> is selected |
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for ctrl in [self.button_export, |
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self.button_remove, |
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self.button_save, |
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self.button_add, |
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self.projchoice, |
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self.projname]: |
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ctrl.Enable(False) |
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if self.curProjPanel is not None: |
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self.curProjPanel.Enable(False) |
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elif proj is self.originalProjection: |
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self.button_remove.Enable(False) |
self.button_remove.Enable(False) |
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if projFile is None: |
if projFile is None: |
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else: |
else: |
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self.panel_edit.Enable(False) |
self.panel_edit.Enable(False) |
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def __DoOnNew(self): |
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sel = self.availprojs.GetSelections() |
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if len(sel) != 0: |
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self.availprojs.SetSelection(sel, False) |
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self.projname.Clear() |
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self.curProjPanel.Clear() |
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def __DoOnProjAvail(self): |
def __DoOnProjAvail(self): |
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sel = self.availprojs.GetSelections() |
sel = self.availprojs.GetSelections() |
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if proj is None: |
if proj is None: |
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# user selected <None> |
# user selected <None> |
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self.projname.Clear() |
self.projname.Clear() |
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else: |
else: |
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if projfile is not None: |
if projfile is not None: |
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if myProjType == projType: |
if myProjType == projType: |
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self.projchoice.SetSelection(i) |
self.projchoice.SetSelection(i) |
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self.__DoOnProjChoice() |
self.__DoOnProjChoice() |
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# |
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# self.curProjPanel should not be null |
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# after a call to __DoOnProjChoice |
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# |
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assert self.curProjPanel is not None |
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self.curProjPanel.SetProjection(proj) |
self.curProjPanel.SetProjection(proj) |
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i += 1 |
i += 1 |
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self.__DoOnProjChoice() |
self.__DoOnProjChoice() |
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def __DoOnProjChoice(self): |
def __DoOnProjChoice(self): |
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"""Create and layout a projection panel based on the selected |
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projection type. |
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This is necessary to have in seperate method since calls to |
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wxChoice.SetSelection() do not trigger an event. |
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At the end of this method self.curProjPanel will not be None |
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if there was a item selected. |
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""" |
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choice = self.projchoice |
choice = self.projchoice |
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sel = choice.GetSelection() |
sel = choice.GetSelection() |
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self.topBox.SetSizeHints(self) |
self.topBox.SetSizeHints(self) |
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def __SetProjection(self): |
def __SetProjection(self): |
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"""Set the receiver's projection.""" |
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# |
# |
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# save the original projection only once in case |
# save the original projection only once in case |
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# we try to apply several different projections |
# we try to apply several different projections |
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# |
# |
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if self.originalProjection == -1: |
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self.originalProjection = self.receiver.GetProjection() |
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self.receiver.SetProjection(self.__GetProjection()) |
self.receiver.SetProjection(self.__GetProjection()) |
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def __GetProjection(self): |
def __GetProjection(self): |
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"""Return the packaged projection. |
"""Return a suitable Projection object based on the current |
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state of the dialog box selections. |
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Could be None. |
Could be None. |
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""" |
""" |
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proj = None |
sel = self.availprojs.GetSelections() |
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assert len(sel) < 2, "button should be disabled" |
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if len(sel) == 1: |
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proj = self.availprojs.GetClientData(sel[0])[CLIENT_PROJ] |
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if proj is None: |
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# <None> is selected |
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return None |
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# |
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# self.curProjPanel should always contain the most |
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# relevant data for a projection |
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# |
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if self.curProjPanel is not None: |
if self.curProjPanel is not None: |
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proj = Projection(self.curProjPanel.GetParameters()) |
return Projection(self.curProjPanel.GetParameters(), |
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proj.SetName(self.projname.GetValue()) |
self.projname.GetValue()) |
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return proj |
return None |
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def __FillAvailList(self, selectCurrent = False): |
def __FillAvailList(self, selectCurrent = False): |
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"""Populate the list of available projections. |
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selectCurrent -- if True, select the projection used by |
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the receiver, otherwise select nothing. |
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""" |
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self.availprojs.Clear() |
self.availprojs.Clear() |
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# |
# |
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# |
# |
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self.availprojs.Append("<None>", (None, None)) |
self.availprojs.Append("<None>", (None, None)) |
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self.__sysProjFile = None |
# proj is only None when <None> should be selected |
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self.__usrProjFile = None |
if proj is None and selectCurrent: |
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self.availprojs.SetSelection(0) |
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self.availprojs.SetFirstItem(0) |
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projfile = GetSystemProjFiles() |
projfile = GetSystemProjFiles() |
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if len(projfile) > 0: |
projfile = projfile[0] |
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projfile = projfile[0] |
for proj in projfile.GetProjections(): |
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for proj in projfile.GetProjections(): |
self.availprojs.Append(proj.GetName(), [proj, projfile]) |
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self.availprojs.Append(proj.GetName(), [proj, projfile]) |
self.__sysProjFile = projfile |
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self.__sysProjFile = projfile |
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projfile = GetUserProjFiles() |
projfile = GetUserProjFiles() |
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if len(projfile) > 0: |
projfile = projfile[0] |
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projfile = projfile[0] |
for proj in projfile.GetProjections(): |
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for proj in projfile.GetProjections(): |
self.availprojs.Append(proj.GetName(), [proj, projfile]) |
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self.availprojs.Append(proj.GetName(), [proj, projfile]) |
self.__usrProjFile = projfile |
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self.__usrProjFile = projfile |
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for proj, name, clazz in self.projPanels: |
for proj, name, clazz in self.projPanels: |
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self.projchoice.Append(name, [clazz, None]) |
self.projchoice.Append(name, [clazz, None]) |
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def __set_properties(self): |
def __set_properties(self): |
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self.SetTitle(_("Projections")) |
#self.availprojs.SetSelection(0) |
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self.availprojs.SetSelection(0) |
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self.projchoice.SetSelection(0) |
self.projchoice.SetSelection(0) |
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self.__FillAvailList(selectCurrent = True) |
self.__FillAvailList(selectCurrent = True) |