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Gtkmm-forge Digest, Vol 28, Issue 4

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Today's Topics:

   1. [Bug 551912] New: Unable to set text color of	ToggleButton
      using modify_text method (gtkmm (bugzilla.gnome.org))
   2. [Bug 552305] New: set_property on a "caps"	property fails
      (gnomemm (bugzilla.gnome.org))
   3. [Bug 483790] Allow for instantiating a Glib::Mutex	from a
      GMutex* (glibmm (bugzilla.gnome.org))
   4. [Bug 552513] New: gtkmm does not build against	GTK+ 2.14 on
      Windows (gtkmm (bugzilla.gnome.org))
   5. [Bug 552305] set_property on a "caps" property	fails
      (gnomemm (bugzilla.gnome.org))
   6. [Bug 552513] gtkmm does not build against GTK+	2.14 on
      Windows (gtkmm (bugzilla.gnome.org))
   7. [Bug 552513] gtkmm does not build against GTK+	2.14 on
      Windows (gtkmm (bugzilla.gnome.org))


----------------------------------------------------------------------

Message: 1
Date: Fri, 12 Sep 2008 05:59:38 +0000 (UTC)
From: "gtkmm (bugzilla.gnome.org)"
	<bugzilla-daemon bugzilla gnome org>
Subject: [gtkmm bugzilla] [Bug 551912] New: Unable to set text color
	of	ToggleButton using modify_text method
To: gtkmm-forge lists sourceforge net
Message-ID: <bug-551912-5595 http bugzilla gnome org/>
Content-Type: text/plain; charset=utf-8

If you have any questions why you received this email, please see the text at
the end of this email. Replies to this email are NOT read, please see the text
at the end of this email. You can add comments to this bug at:
  http://bugzilla.gnome.org/show_bug.cgi?id=551912

  gtkmm | general | Ver: 2.12.x
           Summary: Unable to set text color of ToggleButton using
                    modify_text method
           Product: gtkmm
           Version: 2.12.x
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: general
        AssignedTo: gtkmm-forge lists sourceforge net
        ReportedBy: nobomb gmail com
         QAContact: gtkmm-forge lists sourceforge net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


I am unable to modify the text color of a ToggleButton using the supplied
modify_text method.  The only method that seems to do anything at all is
modify_bg.  I have found a few people on the internet facing the same problem.


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------------------------------

Message: 2
Date: Mon, 15 Sep 2008 02:28:01 +0000 (UTC)
From: "gnomemm (bugzilla.gnome.org)"
	<bugzilla-daemon bugzilla gnome org>
Subject: [gtkmm bugzilla] [Bug 552305] New: set_property on a "caps"
	property fails
To: gtkmm-forge lists sourceforge net
Message-ID: <bug-552305-5595 http bugzilla gnome org/>
Content-Type: text/plain; charset=utf-8

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  gnomemm | gstreamermm | Ver: 2.22
           Summary: set_property on a "caps" property fails
           Product: gnomemm
           Version: 2.22
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: minor
          Priority: Normal
         Component: gstreamermm
        AssignedTo: gtkmm-forge lists sourceforge net
        ReportedBy: bogado bogado net
         QAContact: gtkmm-forge lists sourceforge net
     GNOME version: 2.21/2.22
   GNOME milestone: Unspecified


Please describe the problem:
If a Gst::Element has a "caps" property that expects a GstCaps argument it is
impossible to set it using the c++ interface. 

Steps to reproduce:
1. create a element that expects a "caps" property line multifilesrc or
capsfilter
2. Create a Gst::Caps object.
3. use the set_element("caps", caps) to set the caps property.


Actual results:
The program does not compile with a template instantiation error:

/usr/include/glibmm-2.4/glibmm/value.h: In static member function ?static
GType Glib::Value<Glib::RefPtr<T_CppObject> >::value_type() [with T =
Gst::Caps]?:
/usr/include/glibmm-2.4/glibmm/objectbase.h:219:   instantiated from ?void
Glib::ObjectBase::set_property(const Glib::ustring&, const PropertyType&) [with
PropertyType = Glib::RefPtr<Gst::Caps>]?

teste.cpp:44:   instantiated from here

/usr/include/glibmm-2.4/glibmm/value.h:233: error: ?get_base_type? is not a
member of ?Gst::Caps?

/usr/include/glibmm-2.4/glibmm/value.h: In member function ?void
Glib::Value<Glib::RefPtr<T_CppObject> >::set(const Glib::RefPtr<T_CppObject>&)
[with T = Gst::Caps]?:

/usr/include/glibmm-2.4/glibmm/objectbase.h:221:   instantiated from ?void
Glib::ObjectBase::set_property(const Glib::ustring&, const PropertyType&) [with
PropertyType = Glib::RefPtr<Gst::Caps>]?

teste.cpp:44:   instantiated from here

/usr/include/glibmm-2.4/glibmm/value.h:235: error: no matching function for
call to ?Glib::Value<Glib::RefPtr<Gst::Caps> >::set_object(Gst::Caps*)?

/usr/include/glibmm-2.4/glibmm/value.h:129: note: candidates are: void
Glib::ValueBase_Object::set_object(Glib::ObjectBase*)


Expected results:
The program should compile.

Does this happen every time?
yes.

Other information:
If I try to set the the g_object directly using caps->gobj() the program
compiles but the operation fails at runtime stating that "GLib-GObject-WARNING
**: unable to set property `caps' of type `GstCaps' from value of type
`glibmm__CustomPointer_P8_GstCaps'"

using the C interface g_object_set(element->gobj(), "caps", caps->gobj()); does
seem to work, my test program do give me a warning(*) but the caps is correctly
applied.

*) "GLib-GObject-WARNING **: IA__g_object_set_valist: object class
`GstMultiFileSrc' has no property named ` \xc38'"


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------------------------------

Message: 3
Date: Tue, 16 Sep 2008 03:17:08 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
	<bugzilla-daemon bugzilla gnome org>
Subject: [gtkmm bugzilla] [Bug 483790] Allow for instantiating a
	Glib::Mutex	from a GMutex*
To: gtkmm-forge lists sourceforge net
Message-ID: <20080916031708 864C623F512 label gnome org>
Content-Type: text/plain; charset=utf-8

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  http://bugzilla.gnome.org/show_bug.cgi?id=483790

  glibmm | threads | Ver: 2.14.x

Milosz Derezynski changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |internalerror gmail com




------- Comment #4 from Milosz Derezynski  2008-09-16 03:17 UTC -------
I had the same idea regarding ownership with a MutexWithoutOwnership class, but
this would be like you said a bad choice regarding the virtual dtor, which can
be changed in a later release of glibmm but then we could as well make the
change of a bool arg to Glib::Mutex regarding the ownership, so it all hinges
on breaking the ABI.

Adding such a class temporarily would be, needless to say, very bad, since
people would incorporate this in their code, and finally when a bool arg to
Glib::Mutex(GMutex*) is introduced, well, I'll just stop here as it can be
clearly seen that this is just BAD! :)

I'd argue for introducing the boolean parameter at the next ABI break, so far I
have no better idea.


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------------------------------

Message: 4
Date: Tue, 16 Sep 2008 15:54:14 +0000 (UTC)
From: "gtkmm (bugzilla.gnome.org)"
	<bugzilla-daemon bugzilla gnome org>
Subject: [gtkmm bugzilla] [Bug 552513] New: gtkmm does not build
	against	GTK+ 2.14 on Windows
To: gtkmm-forge lists sourceforge net
Message-ID: <bug-552513-5595 http bugzilla gnome org/>
Content-Type: text/plain; charset=utf-8

If you have any questions why you received this email, please see the text at
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  http://bugzilla.gnome.org/show_bug.cgi?id=552513

  gtkmm | build | Ver: unspecified
           Summary: gtkmm does not build against GTK+ 2.14 on Windows
           Product: gtkmm
           Version: unspecified
          Platform: Other
        OS/Version: Windows
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: build
        AssignedTo: gtkmm-forge lists sourceforge net
        ReportedBy: armin arbur net
         QAContact: gtkmm-forge lists sourceforge net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Two functions have changed their signature from GTK+ 2.12 to GTK+ 2.14:

gdk_drag_get_protocol_for_display now returns a GdkNativeWindow instead of a
guint32, and gdk_selection_send_notify_for_display takes a GdkNativeWindow
instead of a guint32 as second parameter. On linux, those two are probably the
same. However, on Windows, they are not.

The C++ wrappers for these therefore do not compile on Windows.

For gdk_drag_get_protocol_for_display we can probably just change the return
type, since this does not change the ABI (does it?)

For gdk_selection_send_notify_for_display we cannot simply change the parameter
since this would break the ABI. I wonder whether we can simply add an overload
for this, even if GdkNativeWindow and guint32 are the same on Linux. If not,
then we could add the overload for Windows only.

Note that this is actually a slight API change. However, since GTK+ did the
same change it's probably OK for us as long as the ABI stays compatible.

See also
http://mail.gnome.org/archives/gtkmm-list/2008-September/msg00056.html.


-- 
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------------------------------

Message: 5
Date: Wed, 17 Sep 2008 01:19:06 +0000 (UTC)
From: "gnomemm (bugzilla.gnome.org)"
	<bugzilla-daemon bugzilla gnome org>
Subject: [gtkmm bugzilla] [Bug 552305] set_property on a "caps"
	property	fails
To: gtkmm-forge lists sourceforge net
Message-ID: <20080917011906 6A83323F50C label gnome org>
Content-Type: text/plain; charset=utf-8

If you have any questions why you received this email, please see the text at
the end of this email. Replies to this email are NOT read, please see the text
at the end of this email. You can add comments to this bug at:
  http://bugzilla.gnome.org/show_bug.cgi?id=552305

  gnomemm | gstreamermm | Ver: 2.22

Jos? Alburquerque changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jaalburqu svn gnome org




------- Comment #1 from Jos? Alburquerque  2008-09-17 01:19 UTC -------
Would you be able to test the change just commited in svn?  I think it should
fix this bug.


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------------------------------

Message: 6
Date: Wed, 17 Sep 2008 01:46:14 +0000 (UTC)
From: "gtkmm (bugzilla.gnome.org)"
	<bugzilla-daemon bugzilla gnome org>
Subject: [gtkmm bugzilla] [Bug 552513] gtkmm does not build against
	GTK+	2.14 on Windows
To: gtkmm-forge lists sourceforge net
Message-ID: <20080917014614 07DD523F4FD label gnome org>
Content-Type: text/plain; charset=utf-8

If you have any questions why you received this email, please see the text at
the end of this email. Replies to this email are NOT read, please see the text
at the end of this email. You can add comments to this bug at:
  http://bugzilla.gnome.org/show_bug.cgi?id=552513

  gtkmm | build | Ver: unspecified

Damon Register changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |damonregister bellsouth net




------- Comment #1 from Damon Register  2008-09-17 01:46 UTC -------
I can't say much about the compatibility issue but here is a fix that worked
for me.  I used the modified gtkmm to build a simple app that works.


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------------------------------

Message: 7
Date: Wed, 17 Sep 2008 01:50:57 +0000 (UTC)
From: "gtkmm (bugzilla.gnome.org)"
	<bugzilla-daemon bugzilla gnome org>
Subject: [gtkmm bugzilla] [Bug 552513] gtkmm does not build against
	GTK+	2.14 on Windows
To: gtkmm-forge lists sourceforge net
Message-ID: <20080917015057 1873623F50C label gnome org>
Content-Type: text/plain; charset=utf-8

If you have any questions why you received this email, please see the text at
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  gtkmm | build | Ver: unspecified




------- Comment #2 from Damon Register  2008-09-17 01:50 UTC -------
Created an attachment (id=118851)
 --> (http://bugzilla.gnome.org/attachment.cgi?id=118851&action=view)
gtkmm-2.13.7\gdk\gdkmm\display.h

updates to match the gtk functions


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