Patch for adding version info for Extensions

[Jan-Oliver Wagner]

Hi,

some time ago Bernhard Reiter proposed to introduce
some versioning for extensions so that the about dialog
informs about which extensions are loaded and who the
author is etc.

I decided to have a explicit registration for the extensions.

Let me know what you think.

Attached is a patch (based on current CVS HEAD) and a new
file Thuban/UI/extensionregistry.py

	Jan
-- 
Jan-Oliver Wagner               http://intevation.de/~jan/

Intevation GmbH                      http://intevation.de/
FreeGIS                                http://freegis.org/
-------------- next part --------------
A non-text attachment was scrubbed...
Name: extensionregistry.py
Type: text/x-python
Size: 2827 bytes
Desc: not available
Url : http://www.intevation.de/pipermail/thuban-devel/attachments/20040729/e32f7edd/extensionregistry.py
-------------- next part --------------
? Extensions/wms-out
Index: Extensions/gns2shp/gns2shp.py
===================================================================
RCS file: /home/thuban/jail/thubanrepository/thuban/Extensions/gns2shp/gns2shp.py,v
retrieving revision 1.3
diff -u -3 -p -r1.3 gns2shp.py
--- Extensions/gns2shp/gns2shp.py	18 May 2004 21:09:50 -0000	1.3
+++ Extensions/gns2shp/gns2shp.py	29 Jul 2004 12:24:53 -0000
@@ -23,7 +23,7 @@ __version__ = '$Revision: 1.3 $'
 
 import os, sys
 
-# only import GUI when not called as command line tool
+# only import GUI and register when not called as command line tool
 if __name__ != '__main__':
     from wxPython.wx import *
 
@@ -32,8 +32,22 @@ if __name__ != '__main__':
     from Thuban import _
     from Thuban.Model.layer import Layer
 
+from Thuban.UI.extensionregistry import ThubanExtensionDesc, ext_registry
+
 import shapelib
 import dbflib
+
+
+ext_registry.Add(ThubanExtensionDesc(
+    name = 'gns2shp',
+    version = '1.0.0',
+    authors= [ 'Jan-Oliver Wagner' ],
+    copyright = '2003, 2004 Intevation GmbH',
+    desc = _("Converts GNS (Geographical Name Service\n" \
+             "of NIMA) to Shapefile format and\n" \
+             "displays the data."),
+    min_thuban_versions = { '1.0' : '0' }))
+
 
 def gns2shp(src_fname, dest_fname):
     """Convert a file from gns textformat into a Shapefile.
Index: Extensions/importAPR/importAPR.py
===================================================================
RCS file: /home/thuban/jail/thubanrepository/thuban/Extensions/importAPR/importAPR.py,v
retrieving revision 1.4
diff -u -3 -p -r1.4 importAPR.py
--- Extensions/importAPR/importAPR.py	11 May 2004 22:34:49 -0000	1.4
+++ Extensions/importAPR/importAPR.py	29 Jul 2004 12:24:53 -0000
@@ -27,9 +27,19 @@ from Thuban.UI.mainwindow import main_me
 from Thuban import _
 from Thuban.Model.layer import Layer
 from Thuban.Model.classification import ClassGroupRange, ClassGroupSingleton
+from Thuban.UI.extensionregistry import ThubanExtensionDesc, ext_registry
 
 from odb import ODBBaseObject
 from apr import APR_LClass, APR_TClr, APR_BLnSym, APR_BMkSym, APR_BShSym
+
+ext_registry.Add(ThubanExtensionDesc(
+    name = 'importAPR',
+    version = '0.1.0',
+    authors= [ 'Jan-Oliver Wagner' ],
+    copyright = '2003 Intevation GmbH',
+    desc = _("Import a ArcView project file (.apr)\n" \
+             "and convert it to Thuban."),
+    min_thuban_versions = { '1.0' : '0' }))
 
 class ODBExtension(Extension):
     def TreeInfo(self):
Index: Thuban/UI/about.py
===================================================================
RCS file: /home/thuban/jail/thubanrepository/thuban/Thuban/UI/about.py,v
retrieving revision 1.12
diff -u -3 -p -r1.12 about.py
--- Thuban/UI/about.py	26 Mar 2004 18:15:35 -0000	1.12
+++ Thuban/UI/about.py	29 Jul 2004 12:27:14 -0000
@@ -18,6 +18,8 @@ from Thuban import _
 from Thuban.version import versions
 from Thuban.Model.resource import gdal_support_status
 
+from Thuban.UI.extensionregistry import ext_registry
+
 class About(wxDialog):
 
     def __init__(self, parent):
@@ -70,6 +72,14 @@ class About(wxDialog):
             text+= '\t%s %s\n' % (name, version)
         text += '\n'
 
+        text += _('Extensions:\n')
+        if len(ext_registry.Get()) == 0:
+            text += _('\tNone registered.\n')
+        else:
+            for ext in ext_registry.Get():
+                text += '\t%s %s\n' % (ext.name, ext.version)
+        text += '\n'
+
         text += _('Lead Developer:\n')
         text += '\t%s\n\n' % lead_developer
 
@@ -94,6 +104,22 @@ class About(wxDialog):
             "\tDevelopers list (public):\n\t\t<thuban-devel at intevation.de>\n"
             "\tThuban team at Intevation:\n\t\t<thuban at intevation.de>\n"
             )
+
+        text += '\n\n'
+
+        text += _("Details on the registered extensions:\n\n")
+
+        if len(ext_registry.Get()) == 0:
+            text += _('\tNone registered.\n')
+        else:
+            for ext in ext_registry.Get():
+                text += '%s %s:\n' % (ext.name, ext.version)
+                text += _('Copyright %s\n') % ext.copyright
+                text += _('Authors:\n')
+                for author in ext.authors:
+                    text+= '\t%s\n' % author
+                text += ext.desc
+                text += '\n\n'
 
         self.text = text