[postgis-users] Mezogis is closing when using a database

["Daniela Stärke"]

Hi alex,

there is a connection to the db available. I also had reinstalled Mezogis at the beginning of this week. On my linux I have this versions of gtk 1.2.10 as well as gtk2 2.10.6.

loading the db is without problems, but when I want to start it, whether with doubleclick, the SQL-commant "SELECT * FROM...." i get first this:


/usr/local/lib/python2.5/site-packages/mezoGISlib/_canvas.py:524: GtkWarning: Using Cairo rendering requires the drawable argument to
have a specified colormap. All windows have a colormap,
however, pixmaps only have colormap by default if they
were created with a non-NULL window argument. Otherwise
a colormap must be set on them with gdk_drawable_set_colormap
  self.ctx = self.pixmap.cairo_create()



and then the part, which was in my last post.


But I found out, that when I select not all columns of the db, the colums are printed.
Just when I want to use the column "color_map" I receive the message above.


I also checked the source code, but I don't know, what to do with it, or in it.


Do you have any idea???

bye

Daniela




> Hash: SHA1
> 
> 
> hi daniela,
> 
> this also shows an incompatibility of mezogis with your installed gtk.
> 
> should you think it's helpful, i have reinstalled latest mezogis and i'd
> give a try to connect toyour db, if possible.
> 
> alex
> 
> Daniela Stärke wrote:
> > Thank you alex for your help.
> > 
> > I commented the part of the cursor collection out, and now MezoGIS is
> not closing when opening the DB (:D:D:D), but now I receive the following
> messages  (:(:(:()    :
> > 
> > Traceback (most recent call last):
> >   File "/usr/local/lib/python2.5/site-packages/mezoGISlib/_pane_db.py",
> line 522, in __on_doubleclick
> >     ##self.pgbutler.runQuery('SELECT * FROM %s'%table.getSQL())
> >   File "/usr/local/lib/python2.5/site-packages/mezoGISlib/_guicore.py",
> line 397, in runQuery
> >     #self.showResults(cursor, query, layer, resultset, tablelist)
> >   File "/usr/local/lib/python2.5/site-packages/mezoGISlib/_guicore.py",
> line 431, in showResults
> >     #mapview = openMapView(layer.resultset)
> >   File
> "/usr/local/lib/python2.5/site-packages/mezoGISlib/_guiwindows.py", line 33, in openMapView
> >     #m = MapWindow(resultset)
> >   File
> "/usr/local/lib/python2.5/site-packages/mezoGISlib/_guiwindows.py", line 139, in __init__
> >     #self.canvas = MapCanvas()
> >   File "/usr/local/lib/python2.5/site-packages/mezoGISlib/_canvas.py",
> line 86, in __init__
> >     #self.__createNewCanvas()
> >   File "/usr/local/lib/python2.5/site-packages/mezoGISlib/_canvas.py",
> line 524, in __createNewCanvas
> >     #self.ctx = self.pixmap.cairo_create()
> > cairo.Error: NULL pointer
> > 
> > I also tried the same strategy like before, but this will not really
> work, because I get then the same massage.
> > 
> > So has anyone any idea???
> > 
> > Thanks in advance.
> > 
> > Daniela
> > 
> >> hi daniela,
> >>
> >> i have previously played with mezogis a little.
> >>
> >> it might be, that under the condition of your work mezogis tried to
> open
> >>  a non existing cursor.
> >>
> >> as a start point, i'd remove the calling code to the cursor collection
> >> and inquire further.
> >>
> >> hth,
> >>
> >> alex
> >>
> >> Daniela Stärke wrote:
> >>> Thanks for the information. I downloaded the newest version of wxGTK
> >> (2.8.4), but the problem is still there.
> >>> After trying to open a geo-database with MezoGIS the program is still
> >> closing and on the shell there is this,
> >>> /usr/local/lib/python2.5/site-packages/mezoGISlib/_guiwindows.py:80:
> >> GtkWarning: gdk_colormap_get_screen: assertion `GDK_IS_COLORMAP (cmap)'
> failed
> >>>   CursorCollection.xpm["hand-open"])
> >>>
> >>> two times printed.
> >>>
> >>> I had the idea, that I could look in the source code of _guiwindows.py
> >> to see if there might be something missing or so, but in line 80 there
> is no
> >> 'gdk_colormap_get_screen' or 'GDK_IS_COLORMAP' written. Just the
> >> CursorCollection.
> >>> Is it possible, that the method 'gdk_colormap_get_screen'is not jet
> >> written???
> >>> Because when I use the search-function of the vim-editor I receive the
> >> message, that there is no 'gdk_colormap_get_screen' or
> 'GDK_IS_COLORMAP'
> >>> I really need some help.
> >>>
> >>> Thank you in advance for your attention in this matter.
> >>>
> >>>
> >>> Daniela
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