[GRASS-dev] [GRASS GIS] #205: warnings and errors when trying to print the display

GRASS GRASS developer
1

#205: warnings and errors when trying to print the display
----------------------+-----------------------------------------------------
Reporter: msieczka | Owner: grass-dev@lists.osgeo.org
     Type: defect | Status: new
Priority: major | Milestone: 6.4.0
Component: wxGUI | Version: svn-develbranch6
Keywords: | Platform: Linux
      Cpu: x86-64 |
----------------------+-----------------------------------------------------
1. add a map

2. display it

3. "Print display" - as the window pops up, following debug info is
printed to terminal:

{{{
(python:23706): GnomePrint-WARNING **: Could not create filter from
description 'GnomePrintFilterSelect': filter 'GnomePrintFilterSelect' is
unknown

(python:23706): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(python:23706): GLib-GObject-CRITICAL **: g_signal_connect_data: assertion
`G_TYPE_CHECK_INSTANCE (instance)' failed

(python:23706): GnomePrint-WARNING **: Could not create filter from
description 'GnomePrintFilterClip [ GnomePrintFilterMultipage ]': filter
'GnomePrintFilterClip' is unknown

(python:23706): GLib-GObject-CRITICAL **: g_object_unref: assertion
`G_IS_OBJECT (object)' failed

(python:23706): libgnomeprintui-CRITICAL **:
gnome_print_layout_selector_load_filter: assertion `GNOME_IS_PRINT_FILTER
(f)' failed

(python:23706): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

(python:23706): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

(python:23706): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

(python:23706): libgnomeprintui-CRITICAL **:
gnome_paper_selector_load_paper_size: assertion `GNOME_IS_PAPER_SELECTOR
(ps)' failed

(python:23706): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

(python:23706): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

(python:23706): GnomePrint-CRITICAL **: gnome_print_filter_reset:
assertion `GNOME_IS_PRINT_FILTER (f)' failed

(python:23706): GnomePrint-CRITICAL **: gnome_print_filter_flush:
assertion `GNOME_IS_PRINT_FILTER (f)' failed

(python:23706): libgnomeprintui-CRITICAL **:
gnome_paper_selector_load_paper_size: assertion `GNOME_IS_PAPER_SELECTOR
(ps)' failed

** (python:23706): WARNING **: could not set the value of
Settings.Document.Filter, node not found
}}}

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/205&gt;
GRASS GIS <http://grass.osgeo.org>

2

#205: warnings and errors when trying to print the display
-----------------------+----------------------------------------------------
  Reporter: msieczka | Owner: grass-dev@lists.osgeo.org
      Type: defect | Status: new
  Priority: major | Milestone: 6.4.0
Component: wxGUI | Version: svn-develbranch6
Resolution: | Keywords:
  Platform: Linux | Cpu: x86-64
-----------------------+----------------------------------------------------
Comment (by martinl):

Hm, I am not getting these warnings on my machine (using Debian GNU/Linux
Sid, wxPython from apt.wxwidgets.org, 2.8.8.0). I will check later.

Martin

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/205#comment:1&gt;
GRASS GIS <http://grass.osgeo.org>

3

#205: warnings and errors when trying to print the display
-----------------------+----------------------------------------------------
  Reporter: msieczka | Owner: grass-dev@lists.osgeo.org
      Type: defect | Status: new
  Priority: major | Milestone: 6.4.0
Component: wxGUI | Version: svn-develbranch6
Resolution: | Keywords:
  Platform: Linux | Cpu: x86-64
-----------------------+----------------------------------------------------
Comment (by msieczka):

Replying to [comment:1 martinl]:
> Hm, I am not getting these warnings on my machine (using Debian
GNU/Linux Sid, wxPython from apt.wxwidgets.org, 2.8.8.0). I will check
later.

I'm on Debian testing, amd64, same version of wxPython from the same
source.

Maciek

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/205#comment:2&gt;
GRASS GIS <http://grass.osgeo.org>

4

#205: warnings and errors when trying to print the display
-------------------------+--------------------------------------------------
  Reporter: msieczka | Owner: grass-dev@lists.osgeo.org
      Type: defect | Status: closed
  Priority: major | Milestone: 6.4.0
Component: wxGUI | Version: svn-develbranch6
Resolution: worksforme | Keywords:
  Platform: Linux | Cpu: x86-64
-------------------------+--------------------------------------------------
Changes (by cmbarton):

  * status: new => closed
  * resolution: => worksforme

Comment:

No errors on Mac (devbr6), though preview doesn't work. Maybe fixed or a
local Gnome problem?

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/205#comment:3&gt;
GRASS GIS <http://grass.osgeo.org>

5

#205: warnings and errors when trying to print the display
-----------------------+----------------------------------------------------
  Reporter: msieczka | Owner: grass-dev@lists.osgeo.org
      Type: defect | Status: reopened
  Priority: major | Milestone: 6.4.0
Component: wxGUI | Version: svn-develbranch6
Resolution: | Keywords:
  Platform: Linux | Cpu: x86-64
-----------------------+----------------------------------------------------
Changes (by msieczka):

  * status: closed => reopened
  * resolution: worksforme =>

Comment:

In opposite to Mac, print preview works on Debian testing. But WARNINGS
still crop out when I press the "Print" button in the print-preview
dialog:

{{{
(shoofi:8312): GnomePrint-WARNING **: Could not create filter from
description 'GnomePrintFilterSelect': filter 'GnomePrintFilterSelect' is
unknown

(shoofi:8312): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(shoofi:8312): GLib-GObject-CRITICAL **: g_signal_connect_data: assertion
`G_TYPE_CHECK_INSTANCE (instance)' failed

(shoofi:8312): GnomePrint-WARNING **: Could not create filter from
description 'GnomePrintFilterClip [ GnomePrintFilterMultipage ]': filter
'GnomePrintFilterClip' is unknown

(shoofi:8312): GLib-GObject-CRITICAL **: g_object_unref: assertion
`G_IS_OBJECT (object)' failed

(shoofi:8312): libgnomeprintui-CRITICAL **:
gnome_print_layout_selector_load_filter: assertion `GNOME_IS_PRINT_FILTER
(f)' failed

(shoofi:8312): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

(shoofi:8312): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

(shoofi:8312): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

(shoofi:8312): libgnomeprintui-CRITICAL **:
gnome_paper_selector_load_paper_size: assertion `GNOME_IS_PAPER_SELECTOR
(ps)' failed

(shoofi:8312): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

(shoofi:8312): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

(shoofi:8312): GnomePrint-CRITICAL **: gnome_print_filter_reset: assertion
`GNOME_IS_PRINT_FILTER (f)' failed

(shoofi:8312): GnomePrint-CRITICAL **: gnome_print_filter_flush: assertion
`GNOME_IS_PRINT_FILTER (f)' failed
}}}

Then, switching between the PDF and PS output options yields another set
of warnings:

{{{
(shoofi:8312): libgnomeprintui-CRITICAL **:
gnome_paper_selector_load_paper_size: assertion `GNOME_IS_PAPER_SELECTOR
(ps)' failed

(shoofi:8312): libgnomeprintui-CRITICAL **:
gnome_paper_selector_load_paper_size: assertion `GNOME_IS_PAPER_SELECTOR
(ps)' failed

** (shoofi:8312): WARNING **: could not set the value of
Settings.Document.Filter, node not found
}}}

Finally, when printing to PS the following pops up:

{{{
(shoofi:8312): GnomePrint-WARNING **: Could not create filter from
description 'frgba': filter 'frgba' is unknown
}}}

And the output PS takes forever to render in Evince (never completes).
Interestingly, there are 2 pages instead of 1.

The PDF output renders fine. However, also 2 pages instead of 1 (both with
the same content).

Also, scale&arrow overlay brings a solid black polygon covering all the
map content below the scale&arrow, in the ouput PDF.

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/205#comment:4&gt;
GRASS GIS <http://grass.osgeo.org>

6

In the wxPython/wxWidget docs, I found the following.

Printing under Unix (GTK+)

Printing under Unix has always been a cause of problems as Unix does not provide a standard way to display text and graphics on screen and print it to a printer using the same application programming interface - instead, displaying on screen is done via the X11 library while printing has to be done with using PostScript commands. This was particularly difficult to handle for the case of fonts with the result that only a selected number of application could offer WYSIWYG under Unix. Equally, wxWidgets offered its own printing implementation using PostScript which never really matched the screen display.

Starting with version 2.8.X, the GNOME project provides printing support through the libgnomeprint and libgnomeprintui libraries by which especially the font problem is mostly solved. Beginning with version 2.5.4, the GTK+ port of wxWidgets can make use of these libraries if wxWidgets is configured accordingly and if the libraries are present. You need to configure wxWidgets with the configure --with-gnomeprint switch and your application will then search for the GNOME print libraries at runtime. If they are found, printing will be done through these, otherwise the application will fall back to the old PostScript printing code. Note that the application will not require the GNOME print libraries to be installed in order to run (there will be no dependency on these libraries).

In version GTK+ 2.10, support for printing has been added to GTK+ itself. Support for this has been added to wxWidgets in the development branch and it will be available for wxWidgets 3.0.

Perhaps this is helpful.

Michael

On Jan 10, 2009, at 3:23 AM, GRASS GIS wrote:

#205: warnings and errors when trying to print the display
-----------------------+----------------------------------------------------
Reporter: msieczka | Owner: grass-dev@lists.osgeo.org
     Type: defect | Status: reopened
Priority: major | Milestone: 6.4.0
Component: wxGUI | Version: svn-develbranch6
Resolution: | Keywords:
Platform: Linux | Cpu: x86-64
-----------------------+----------------------------------------------------
Changes (by msieczka):

* status: closed => reopened
* resolution: worksforme =>

Comment:

In opposite to Mac, print preview works on Debian testing. But WARNINGS
still crop out when I press the "Print" button in the print-preview
dialog:

{{{
(shoofi:8312): GnomePrint-WARNING **: Could not create filter from
description 'GnomePrintFilterSelect': filter 'GnomePrintFilterSelect' is
unknown

(shoofi:8312): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(shoofi:8312): GLib-GObject-CRITICAL **: g_signal_connect_data: assertion
`G_TYPE_CHECK_INSTANCE (instance)' failed

(shoofi:8312): GnomePrint-WARNING **: Could not create filter from
description 'GnomePrintFilterClip [ GnomePrintFilterMultipage ]': filter
'GnomePrintFilterClip' is unknown

(shoofi:8312): GLib-GObject-CRITICAL **: g_object_unref: assertion
`G_IS_OBJECT (object)' failed

(shoofi:8312): libgnomeprintui-CRITICAL **:
gnome_print_layout_selector_load_filter: assertion `GNOME_IS_PRINT_FILTER
(f)' failed

(shoofi:8312): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

(shoofi:8312): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

(shoofi:8312): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

(shoofi:8312): libgnomeprintui-CRITICAL **:
gnome_paper_selector_load_paper_size: assertion `GNOME_IS_PAPER_SELECTOR
(ps)' failed

(shoofi:8312): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

(shoofi:8312): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

(shoofi:8312): GnomePrint-CRITICAL **: gnome_print_filter_reset: assertion
`GNOME_IS_PRINT_FILTER (f)' failed

(shoofi:8312): GnomePrint-CRITICAL **: gnome_print_filter_flush: assertion
`GNOME_IS_PRINT_FILTER (f)' failed
}}}

Then, switching between the PDF and PS output options yields another set
of warnings:

{{{
(shoofi:8312): libgnomeprintui-CRITICAL **:
gnome_paper_selector_load_paper_size: assertion `GNOME_IS_PAPER_SELECTOR
(ps)' failed

(shoofi:8312): libgnomeprintui-CRITICAL **:
gnome_paper_selector_load_paper_size: assertion `GNOME_IS_PAPER_SELECTOR
(ps)' failed

** (shoofi:8312): WARNING **: could not set the value of
Settings.Document.Filter, node not found
}}}

Finally, when printing to PS the following pops up:

{{{
(shoofi:8312): GnomePrint-WARNING **: Could not create filter from
description 'frgba': filter 'frgba' is unknown
}}}

And the output PS takes forever to render in Evince (never completes).
Interestingly, there are 2 pages instead of 1.

The PDF output renders fine. However, also 2 pages instead of 1 (both with
the same content).

Also, scale&arrow overlay brings a solid black polygon covering all the
map content below the scale&arrow, in the ouput PDF.

--
Ticket URL: <#205 (warnings and errors when trying to print the display) – GRASS GIS;
GRASS GIS <http://grass.osgeo.org>

7

#205: warnings and errors when trying to print the display
-----------------------+----------------------------------------------------
  Reporter: msieczka | Owner: grass-dev@lists.osgeo.org
      Type: defect | Status: reopened
  Priority: major | Milestone: 6.4.0
Component: wxGUI | Version: svn-develbranch6
Resolution: | Keywords:
  Platform: Linux | Cpu: x86-64
-----------------------+----------------------------------------------------
Comment (by cmbarton):

The wxPython GUI is set to use the platform native printing system,
whatever that is. If I remember the more extended discussions, one cause
of this is installation of an additional printing system with the Gnome
windowing package. There is some kind of conflict with the wxPython
access/implementation of the local platform printing system.

If I recall, this is an issue with some Gnome print installations on some
Linux platforms--not all. It does not seem to affect non-Gnome (at least
at the time of discussions) windowing packages, nor does it seem to affect
Mac or Windows.

Whatever the problem is, however, it seems to be something with wxWidgets
or the wxPython implementation of it, not something that we can fix in the
GUI. I suppose that the best thing would to report this to the wxPython or
wxWidgets list.

Does anyone object to changing it to "won't fix" (can't fix actually)?

Michael

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/205#comment:5&gt;
GRASS GIS <http://grass.osgeo.org>

8

#205: warnings and errors when trying to print the display
-----------------------+----------------------------------------------------
  Reporter: msieczka | Owner: grass-dev@lists.osgeo.org
      Type: defect | Status: closed
  Priority: major | Milestone: 6.4.0
Component: wxGUI | Version: svn-develbranch6
Resolution: wontfix | Keywords:
  Platform: Linux | Cpu: x86-64
-----------------------+----------------------------------------------------
Changes (by cmbarton):

  * status: reopened => closed
  * resolution: => wontfix

Comment:

I've heard no objections to closing this with wontfix. So I'm closing.
This is a duplicate of #187 AFAICT. I'm closing that one too with a
reference to this ticket.

Michael

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/205#comment:6&gt;
GRASS GIS <http://grass.osgeo.org>