wxGUI/mapdisp: add 'set computational region from saved region' to the zoom menu

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@57966 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gcp/mapdisplay.py

@@ -436,7 +436,7 @@ class MapFrame(SingleMapFrame):
         """!Set display geometry to match extents in
         saved region file
         """
-        self.MapWindow.ZoomToSaved()
+        self.MapWindow.SetRegion(zoomOnly=True)
         
     def OnDisplayToWind(self, event):
         """!Set computational region (WIND file) to match display

gui/wxpython/mapdisp/frame.py

@@ -1117,13 +1117,19 @@ class MapFrame(SingleMapFrame):
         """!Set display geometry to match extents in
         saved region file
         """
-        self.MapWindow.ZoomToSaved()
+        self.MapWindow.SetRegion(zoomOnly=True)
         
-    def OnDisplayToWind(self, event):
+    def OnSetDisplayToWind(self, event):
         """!Set computational region (WIND file) to match display
         extents
         """
         self.MapWindow.DisplayToWind()
+
+    def OnSetWindToRegion(self, event):
+        """!Set computational region (WIND file) from named region
+        file
+        """
+        self.MapWindow.SetRegion(zoomOnly=False)
  
     def OnSaveDisplayRegion(self, event):
         """!Save display extents to named region file.
@@ -1143,13 +1149,19 @@ class MapFrame(SingleMapFrame):
         for label, handler in ((_('Zoom to computational region'), self.OnZoomToWind),
                                (_('Zoom to default region'), self.OnZoomToDefault),
                                (_('Zoom to saved region'), self.OnZoomToSaved),
-                               (_('Set computational region from display extent'), self.OnDisplayToWind),
+                               (None, None),
+                               (_('Set computational region from display extent'), self.OnSetDisplayToWind),
+                               (_('Set computational region from named region'), self.OnSetWindToRegion),
+                               (None, None),
                                (_('Save display geometry to named region'), self.OnSaveDisplayRegion),
                                (_('Save computational region to named region'), self.OnSaveWindRegion)):
-            mid = wx.MenuItem(zoommenu, wx.ID_ANY, label)
-            zoommenu.AppendItem(mid)
-            self.Bind(wx.EVT_MENU, handler, mid)
-            
+            if label:
+                mid = wx.MenuItem(zoommenu, wx.ID_ANY, label)
+                zoommenu.AppendItem(mid)
+                self.Bind(wx.EVT_MENU, handler, mid)
+            else:
+                zoommenu.AppendSeparator()
+        
         # Popup the menu. If an item is selected then its handler will
         # be called before PopupMenu returns.
         self.PopupMenu(zoommenu)

gui/wxpython/mapwin/buffered.py

@@ -1659,37 +1659,49 @@ class BufferedMapWindow(MapWindowBase, wx.Window):
         if tmpreg:
             os.environ["GRASS_REGION"] = tmpreg
         
-    def ZoomToSaved(self):
-        """!Set display geometry to match extents in
-        saved region file
+    def SetRegion(self, zoomOnly=True):
+        """!Set display extents/compulational region from named region
+        file.
+
+        @param zoomOnly zoom to named region only (computational region is not saved)
         """
+        if zoomOnly:
+            label = _('Zoom to saved region extents')
+        else:
+            label = _('Set compulational region from named region')
         dlg = SavedRegion(parent = self,
-                          title = _("Zoom to saved region extents"),
+                          title = label,
                           loadsave = 'load')
         
         if dlg.ShowModal() == wx.ID_CANCEL or not dlg.GetName():
             dlg.Destroy()
             return
         
-        if not grass.find_file(name = dlg.GetName(), element = 'windows')['name']:
-            wx.MessageBox(parent = self,
-                          message = _("Region <%s> not found. Operation canceled.") % dlg.GetName(),
-                          caption = _("Error"), style = wx.ICON_ERROR | wx.OK | wx.CENTRE)
+        region = dlg.GetName()
+        if not grass.find_file(name = region, element = 'windows')['name']:
+            GError(parent = self,
+                   message = _("Region <%s> not found. Operation canceled.") % region)
             dlg.Destroy()
             return
         
-        self.Map.GetRegion(regionName = dlg.GetName(),
-                           update = True)
-        
         dlg.Destroy()
         
-        self.ZoomHistory(self.Map.region['n'],
-                         self.Map.region['s'],
-                         self.Map.region['e'],
-                         self.Map.region['w'])
+        if zoomOnly:
+            self.Map.GetRegion(regionName = region,
+                               update = True)
+            
+            self.ZoomHistory(self.Map.region['n'],
+                             self.Map.region['s'],
+                             self.Map.region['e'],
+                             self.Map.region['w'])
+        else:
+            # set computation region from named region file
+            RunCommand('g.region',
+                       parent = self,
+                       region = region)
         
         self.UpdateMap()
-                
+
     def SaveRegion(self, display = True):
         """!Save display extents/compulational region to named region
         file.