jan: thuban/Thuban/UI mainwindow.py,1.128.2.1,1.128.2.2

[cvs@intevation.de]

Author: jan

Update of /thubanrepository/thuban/Thuban/UI
In directory doto:/tmp/cvs-serv21185

Modified Files:
      Tag: thuban-1-0-branch
	mainwindow.py 
Log Message:
(view_position_changed):
Backport from HEAD: Warn user about
misprojected layers when their lat/lon bounding
box exceeds rational lat/lon values.


Index: mainwindow.py
===================================================================
RCS file: /thubanrepository/thuban/Thuban/UI/mainwindow.py,v
retrieving revision 1.128.2.1
retrieving revision 1.128.2.2
diff -u -d -r1.128.2.1 -r1.128.2.2
--- mainwindow.py	10 Jan 2005 17:08:50 -0000	1.128.2.1
+++ mainwindow.py	21 Jan 2005 14:03:07 -0000	1.128.2.2
@@ -338,6 +338,37 @@
             text = "(%10.10g, %10.10g)" % pos
         else:
             text = ""
+            # XXX This is a hack until we find a better place for this code.
+            # (BER 20050120)
+            # BH wrote (20050120):
+            # this branch is only executed when the mouse
+            # leaves the canvas window, so it's not that often [..]
+            # [Here] not the right place to put this code.  
+            # I don't have a better solution at hand, 
+            # but the view_position_changed is only there to update 
+            # the current position.  If other information is to
+            # be shown in the status bar it should 
+            # be handled in a different way and
+            # by other methods.
+            #
+            # The status bar widget supports some kind of stack of texts.
+            # maybe that can be used to distinguis 
+            # between short-lived information such as the mouse position 
+            # and more permanent information such as the hint 
+            # about the projections.
+            map = self.canvas.Map()
+            for layer in map.layers:
+                bbox = layer.LatLongBoundingBox()
+                if bbox:
+                    left, bottom, right, top = bbox
+                    if not (-180 <= left <= 180 and
+                        -180 <= right <= 180 and
+                        -90 <= top <= 90 and
+                        -90 <= bottom <= 90):
+                        text = _("Select layer '%s' and pick a projection "
+                                 "using Layer/Projection...") % layer.title
+                        break
+
         self.set_position_text(text)
 
     def set_position_text(self, text):