[Glade-users] adding custom widgets written with Gtkmm

From: tristan at wibberley.org (Tristan Wibberley)
Subject: [Glade-users] adding custom widgets written with Gtkmm
Date: Sat, 20 Sep 2008 16:48:51 +0100

Tristan, (it feels really weird addressing an email to "Tristan" as I've
never met anybody with the same name as me before :)

Thanks for the reply, I'm sending this reply to the maillist as it looks
like you meant yours to go there (the headers look like it didn't unless
it was BCC'd)

On Sat, 2008-09-20 at 11:24 -0400, Tristan Van Berkom wrote:

Hi,
   Im not familliar with gtkmm nor have I worked much with c++, the cpp file
you have here, can a normal C compiled program link to it and use the
GType created
by the cpp class ? if so - I dont see why it cant work in theory.



I don't yet know how to check really. I was a long time Linux coder with
non-gui server and algorithmic stuff now I work on Windows with GUI and
I want to start doing GNOME gui programming.

I've gone straight to writing custom controls how I would do it on
Windows.

I'll try figuring out how to make anjuta link libcustom.so into another
program to look at this new issue.

Could it be a matter of feeding some obscure flags to the cpp linker ?


As in my other mail which you should hopefully have received by now
anjuta was not correctly setting up a shared object module which I have
now learned how to correct (strip numbers from the module name as listed
in the project modules/packages list, replace spaces with underscore,
upper-case it all and put $(THAT_STUFF) into the libraries textbox of
the module properties.

what does "nm libcustom.so | grep mywidget_get_type" have to say,
objdump and friends. Seems your lib didnt even pass g_module_open().


after discovering that

"//The GType name will actually be gtkmm__CustomObject_mywidget"

which I hadn't notice in the sample widget code and changing the extern
"C" stuff to:

gtkmm___custom_object_mywidget_get_type and
gtkmm___custom_object_mywidget_new

and the catalog file to 
    <glade-widget-class name="gtkmm__CustomObject_mywidget"
generic-name="gtkmm__CustomObject_mywidget" title="Frobnicator"/>


glade-3 now says (upon adding my widget to a toplevel !YAY!):

**
** Gtk:ERROR:(/build/buildd/gtk
+2.0-2.12.9/gtk/gtkwidget.c:7967):gtk_widget_real_realize: assertion
failed: (GTK_WIDGET_NO_WINDOW (widget))
Aborted

nm now says (ignore the _Z* symbols - they are c++ stuff)

tristan at maihem:~/dev/anjuta/src$ nm .libs/libcustom.so
0000000000208f30 d DW.ref.__gxx_personality_v0
00000000002089a8 a _DYNAMIC
0000000000208cd8 a _GLOBAL_OFFSET_TABLE_
0000000000005cb0 t _GLOBAL__I_diffscroll.cc
                 w _Jv_RegisterClasses
                 U _Unwind_Resume@@GCC_3.0
                 U _ZN3Atk11Implementor21ref_accessibile_vfuncEv
                 U _ZN3Atk11ImplementorD0Ev
                 U _ZN3Atk11ImplementorD1Ev
                 U
_ZN3Gdk5Cairo16set_source_colorERN5Cairo6RefPtrINS1_7ContextEEERKNS_5ColorE
                 U _ZN3Gdk5ColorC1ERKN4Glib7ustringE
                 U _ZN3Gdk5ColorD1Ev
                 U _ZN3Gdk6Window11move_resizeEiiii
                 U _ZN3Gdk6Window13set_user_dataEPv
                 U
_ZN3Gdk6Window6createERKN4Glib6RefPtrIS0_EEP14_GdkWindowAttri
                 U _ZN3Gdk8Drawable20create_cairo_contextEv
                 U _ZN3Gtk6Object10set_manageEv
                 U _ZN3Gtk6Object15destroy_notify_Ev
                 U _ZN3Gtk6ObjectD0Ev
                 U _ZN3Gtk6ObjectD1Ev
                 U _ZN3Gtk6Widget10get_windowEv
                 U _ZN3Gtk6Widget10on_realizeEv
                 U
_ZN3Gtk6Widget10set_windowERKN4Glib6RefPtrIN3Gdk6WindowEEE
                 U
_ZN3Gtk6Widget11on_drag_endERKN4Glib6RefPtrIN3Gdk11DragContextEEE
                 U _ZN3Gtk6Widget11unset_flagsENS_11WidgetFlagsE
                 U _ZN3Gtk6Widget12ensure_styleEv
                 U
_ZN3Gtk6Widget12on_drag_dropERKN4Glib6RefPtrIN3Gdk11DragContextEEEiij
                 U _ZN3Gtk6Widget12on_map_eventEP12_GdkEventAny
                 U _ZN3Gtk6Widget12on_unrealizeEv
                 U
_ZN3Gtk6Widget13on_drag_beginERKN4Glib6RefPtrIN3Gdk11DragContextEEE
                 U
_ZN3Gtk6Widget13on_drag_leaveERKN4Glib6RefPtrIN3Gdk11DragContextEEEj
                 U _ZN3Gtk6Widget13on_grab_focusEv
                 U _ZN3Gtk6Widget14hide_all_vfuncEv
                 U
_ZN3Gtk6Widget14on_drag_motionERKN4Glib6RefPtrIN3Gdk11DragContextEEEiij
                 U _ZN3Gtk6Widget14on_grab_notifyEb
                 U _ZN3Gtk6Widget14on_unmap_eventEP12_GdkEventAny
                 U _ZN3Gtk6Widget14set_allocationERKN3Gdk9RectangleE
                 U _ZN3Gtk6Widget14show_all_vfuncEv
                 U _ZN3Gtk6Widget15on_child_notifyEP11_GParamSpec
                 U _ZN3Gtk6Widget15on_client_eventEP15_GdkEventClient
                 U _ZN3Gtk6Widget15on_delete_eventEP12_GdkEventAny
                 U _ZN3Gtk6Widget15on_expose_eventEP15_GdkEventExpose
                 U _ZN3Gtk6Widget15on_scroll_eventEP15_GdkEventScroll
                 U _ZN3Gtk6Widget15on_size_requestEP15_GtkRequisition
                 U
_ZN3Gtk6Widget16on_drag_data_getERKN4Glib6RefPtrIN3Gdk11DragContextEEERNS_13SelectionDataEjj
                 U
_ZN3Gtk6Widget16on_selection_getERNS_13SelectionDataEjj
                 U _ZN3Gtk6Widget16on_size_allocateERN3Gdk9RectangleE
                 U _ZN3Gtk6Widget16on_state_changedENS_9StateTypeE
                 U
_ZN3Gtk6Widget16on_style_changedERKN4Glib6RefPtrINS_5StyleEEE
                 U _ZN3Gtk6Widget17on_focus_in_eventEP14_GdkEventFocus
                 U _ZN3Gtk6Widget17on_get_accessibleEv
                 U _ZN3Gtk6Widget17on_parent_changedEPS0_
                 U
_ZN3Gtk6Widget17on_screen_changedERKN4Glib6RefPtrIN3Gdk6ScreenEEE
                 U
_ZN3Gtk6Widget18on_configure_eventEP18_GdkEventConfigure
                 U _ZN3Gtk6Widget18on_focus_out_eventEP14_GdkEventFocus
                 U _ZN3Gtk6Widget18on_key_press_eventEP12_GdkEventKey
                 U _ZN3Gtk6Widget18on_no_expose_eventEP12_GdkEventAny
                 U
_ZN3Gtk6Widget19on_drag_data_deleteERKN4Glib6RefPtrIN3Gdk11DragContextEEE
                 U _ZN3Gtk6Widget20get_accessible_vfuncEv
                 U
_ZN3Gtk6Widget20on_direction_changedENS_13TextDirectionE
                 U _ZN3Gtk6Widget20on_hierarchy_changedEPS0_
                 U _ZN3Gtk6Widget20on_key_release_eventEP12_GdkEventKey
                 U _ZN3Gtk6Widget20on_mnemonic_activateEb
                 U
_ZN3Gtk6Widget21on_button_press_eventEP15_GdkEventButton
                 U
_ZN3Gtk6Widget21on_drag_data_receivedERKN4Glib6RefPtrIN3Gdk11DragContextEEEiiRKNS_13SelectionDataEjj
                 U
_ZN3Gtk6Widget21on_enter_notify_eventEP17_GdkEventCrossing
                 U
_ZN3Gtk6Widget21on_leave_notify_eventEP17_GdkEventCrossing
                 U
_ZN3Gtk6Widget21on_proximity_in_eventEP18_GdkEventProximity
                 U
_ZN3Gtk6Widget21on_selection_receivedERKNS_13SelectionDataEj
                 U
_ZN3Gtk6Widget21on_window_state_eventEP20_GdkEventWindowState
                 U
_ZN3Gtk6Widget22on_motion_notify_eventEP15_GdkEventMotion
                 U
_ZN3Gtk6Widget22on_proximity_out_eventEP18_GdkEventProximity
                 U
_ZN3Gtk6Widget23on_button_release_eventEP15_GdkEventButton
                 U
_ZN3Gtk6Widget24on_property_notify_eventEP17_GdkEventProperty
                 U
_ZN3Gtk6Widget24on_selection_clear_eventEP18_GdkEventSelection
                 U
_ZN3Gtk6Widget25on_selection_notify_eventEP18_GdkEventSelection
                 U
_ZN3Gtk6Widget26on_selection_request_eventEP18_GdkEventSelection
                 U
_ZN3Gtk6Widget26on_visibility_notify_eventEP19_GdkEventVisibility
                 U
_ZN3Gtk6Widget39dispatch_child_properties_changed_vfuncEjPP11_GParamSpec
                 U _ZN3Gtk6Widget6on_mapEv
                 U _ZN3Gtk6Widget7on_hideEv
                 U _ZN3Gtk6Widget7on_showEv
                 U _ZN3Gtk6Widget8get_typeEv
                 U _ZN3Gtk6Widget8on_eventEP9_GdkEvent
                 U _ZN3Gtk6Widget8on_focusENS_13DirectionTypeE
                 U _ZN3Gtk6Widget8on_unmapEv
                 U _ZN3Gtk6Widget9get_styleEv
                 U _ZN3Gtk6Widget9modify_bgENS_9StateTypeERKN3Gdk5ColorE
                 U _ZN3Gtk6Widget9modify_fgENS_9StateTypeERKN3Gdk5ColorE
                 U _ZN3Gtk6Widget9set_flagsENS_11WidgetFlagsE
                 U _ZN3Gtk6WidgetC2Ev
                 U _ZN3Gtk6WidgetD0Ev
                 U _ZN3Gtk6WidgetD1Ev
                 U _ZN3Gtk6WidgetD2Ev
                 U _ZN4Glib10ObjectBase10set_manageEv
                 U _ZN4Glib10ObjectBase15destroy_notify_Ev
                 U _ZN4Glib10ObjectBaseC2EPKc
                 U _ZN4Glib10ObjectBaseD2Ev
                 U _ZN4Glib5ValueIiE10value_typeEv
                 U _ZN4Glib6ObjectD0Ev
                 U _ZN4Glib6ObjectD1Ev
0000000000006d90 W _ZN4Glib6RefPtrIN3Gdk6WindowEED1Ev
                 U _ZN4Glib7ustringC1EPKc
                 U _ZN4Glib7ustringD1Ev
                 U _ZN4Glib9InterfaceD0Ev
                 U _ZN4Glib9InterfaceD1Ev
                 U _ZN4Glib9ValueBase4initEm
                 U _ZN4Glib9ValueBaseC2Ev
                 U _ZN4Glib9ValueBaseD2Ev
                 U _ZN4sigc9trackableC2Ev
                 U _ZN4sigc9trackableD2Ev
                 U _ZN5Cairo7Context4clipEv
                 U _ZN5Cairo7Context5paintEv
                 U _ZN5Cairo7Context6strokeEv
                 U _ZN5Cairo7Context7line_toEdd
                 U _ZN5Cairo7Context7move_toEdd
                 U _ZN5Cairo7Context9rectangleEdddd
0000000000006510 T _ZN8MyWidget10on_realizeEv
0000000000006000 T _ZN8MyWidget12on_unrealizeEv
00000000000068a0 T _ZN8MyWidget15on_expose_eventEP15_GdkEventExpose
0000000000005c80 T _ZN8MyWidget15on_size_requestEP15_GtkRequisition
0000000000005ce0 T _ZN8MyWidget16on_size_allocateERN3Gdk9RectangleE
0000000000005c90 T _ZN8MyWidget6on_mapEv
0000000000005ca0 T _ZN8MyWidget8on_unmapEv
0000000000006030 T _ZN8MyWidgetC1Ev
00000000000062f0 T _ZN8MyWidgetC2Ev
0000000000005dc0 T _ZN8MyWidgetD0Ev
0000000000005ec0 T _ZN8MyWidgetD1Ev
0000000000005f90 T _ZN8MyWidgetD2Ev
                 U _ZNK3Gdk9Rectangle10get_heightEv
                 U _ZNK3Gdk9Rectangle5get_xEv
                 U _ZNK3Gdk9Rectangle5get_yEv
                 U _ZNK3Gdk9Rectangle9get_widthEv
                 U _ZNK3Gtk5Style6get_bgENS_9StateTypeE
                 U _ZNK3Gtk5Style6get_fgENS_9StateTypeE
                 U _ZNK3Gtk6Widget10get_eventsEv
                 U _ZNK3Gtk6Widget14get_allocationEv
0000000000006dc0 W
_ZNK3Gtk6Widget18get_style_propertyIiEEvRKN4Glib7ustringERT_
                 U
_ZNK3Gtk6Widget24get_style_property_valueERKN4Glib7ustringERNS1_9ValueBaseE
                 U _ZNK4Glib10ObjectBase11unreferenceEv
                 U _ZNK4Glib10ObjectBase9referenceEv
                 U _ZNK4Glib5ValueIiE3getEv
                 U _ZNSo3putEc@@GLIBCXX_3.4
                 U _ZNSo5flushEv@@GLIBCXX_3.4
                 U _ZNSolsEi@@GLIBCXX_3.4
                 U _ZNSt8ios_base4InitC1Ev@@GLIBCXX_3.4
                 U _ZNSt8ios_base4InitD1Ev@@GLIBCXX_3.4
                 U
_ZNSt9basic_iosIcSt11char_traitsIcEE5clearESt12_Ios_Iostate@@GLIBCXX_3.4
                 U
_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l@@GLIBCXX_3.4.9
                 U _ZSt16__throw_bad_castv@@GLIBCXX_3.4
                 U _ZSt4cout@@GLIBCXX_3.4
0000000000208f48 b _ZStL8__ioinit
0000000000208680 V _ZTC8MyWidget0_N3Gtk6ObjectE
00000000002083a0 V _ZTC8MyWidget0_N3Gtk6WidgetE
0000000000208740 V _ZTC8MyWidget0_N4Glib6ObjectE
00000000002087e0 V _ZTC8MyWidget16_N3Atk11ImplementorE
00000000002088a0 V _ZTC8MyWidget16_N4Glib9InterfaceE
0000000000208940 V _ZTC8MyWidget40_N4Glib10ObjectBaseE
0000000000208990 V _ZTI8MyWidget
                 U _ZTIN3Atk11ImplementorE
                 U _ZTIN3Gtk6ObjectE
                 U _ZTIN3Gtk6WidgetE
                 U _ZTIN4Glib10ObjectBaseE
                 U _ZTIN4Glib6ObjectE
                 U _ZTIN4Glib9InterfaceE
0000000000006f68 V _ZTS8MyWidget
0000000000208320 V _ZTT8MyWidget
0000000000208040 V _ZTV8MyWidget
                 U _ZTVN10__cxxabiv120__si_class_type_infoE@@CXXABI_1.3
                 U _ZThn16_N3Gtk6WidgetD0Ev
                 U _ZThn16_N3Gtk6WidgetD1Ev
0000000000005db0 T _ZThn16_N8MyWidgetD0Ev
0000000000005eb0 T _ZThn16_N8MyWidgetD1Ev
                 U _ZTv0_n32_N3Atk11ImplementorD0Ev
                 U _ZTv0_n32_N3Atk11ImplementorD1Ev
                 U _ZTv0_n32_N3Gtk6ObjectD0Ev
                 U _ZTv0_n32_N3Gtk6ObjectD1Ev
                 U _ZTv0_n32_N3Gtk6WidgetD0Ev
                 U _ZTv0_n32_N3Gtk6WidgetD1Ev
                 U _ZTv0_n32_N4Glib6ObjectD0Ev
                 U _ZTv0_n32_N4Glib6ObjectD1Ev
                 U _ZTv0_n32_N4Glib9InterfaceD0Ev
                 U _ZTv0_n32_N4Glib9InterfaceD1Ev
0000000000005da0 T _ZTv0_n32_N8MyWidgetD0Ev
0000000000005ea0 T _ZTv0_n32_N8MyWidgetD1Ev
                 U _ZTv0_n56_N3Gtk6Object15destroy_notify_Ev
                 U _ZTv0_n64_N3Gtk6Object10set_manageEv
                 U _ZdlPv@@GLIBCXX_3.4
                 U _Znwm@@GLIBCXX_3.4
0000000000208010 d __CTOR_END__
0000000000208000 d __CTOR_LIST__
0000000000208020 d __DTOR_END__
0000000000208018 d __DTOR_LIST__
0000000000007340 r __FRAME_END__
0000000000208028 d __JCR_END__
0000000000208028 d __JCR_LIST__
0000000000208f38 A __bss_start
                 U __cxa_atexit@@GLIBC_2.2.5
                 w __cxa_finalize@@GLIBC_2.2.5
                 U __cxa_pure_virtual@@CXXABI_1.3
0000000000006e50 t __do_global_ctors_aux
0000000000005bd0 t __do_global_dtors_aux
0000000000208f28 d __dso_handle
                 w __gmon_start__
                 U __gxx_personality_v0@@CXXABI_1.3
0000000000208f38 A _edata
0000000000208f50 A _end
0000000000006e88 T _fini
0000000000005710 T _init
0000000000005bb0 t call_gmon_start
0000000000208f38 b completed.6688
0000000000208f40 b dtor_idx.6690
0000000000005c50 t frame_dummy
                 U g_param_spec_int
                 U g_type_check_class_cast
                 U g_type_name
                 U gtk_rc_parse
                 U gtk_widget_class_install_style_property
                 U gtk_widget_get_type
0000000000005d90 T gtkmm___custom_object_mywidget_get_type
00000000000062a0 T gtkmm___custom_object_mywidget_new
                 U strlen@@GLIBC_2.2.5

Any thoughts on this Juan ?

Cheers,
                   -Tristan

On Sat, Sep 20, 2008 at 10:31 AM, Tristan Wibberley
<tristan at wibberley.org> wrote:

On Sat, 2008-09-20 at 15:09 +0100, Tristan Wibberley wrote:

Then I wrote a catalog xml file below which I copied
to /usr/share/glade3/catalogs and I copied the library libcustom.so
to /usr/lib/glad3/modules.


I meant /usr/lib/glade3/modules

It seems if I put libc.so.6 into modules as libc.so and change the
catalog file to library="c" then libc gets loaded. This is a bit odd
because I'm sure the libc authors didn't do anything special to make
libc loadable from glade.

--
Tristan Wibberley

_______________________________________________
Glade-users maillist  -  Glade-users at lists.ximian.com
http://lists.ximian.com/mailman/listinfo/glade-users

Follow-Ups:
- [Glade-users] adding custom widgets written with Gtkmm
  - From: Tristan Van Berkom

References:
- [Glade-users] adding custom widgets written with Gtkmm
  - From: Tristan Wibberley
- [Glade-users] adding custom widgets written with Gtkmm
  - From: Tristan Wibberley

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