John Hobbs wrote:
I've seen this as well, with the 2.14-2 release, I just ignore it
because it all seems to work and, well, I'm lazy.
Why did this thread die with no answer (resolution)? Did someone
get an answer privately? I am having the same trouble with a
FileChooserButton and I am guessing it is the same issue connected
with the FileChooser dialog.
I have done a little more testing with the FileChooserButton in order
to learn about the conditions where this error message occurs. In
Glade I created a simple window with a Layout container that has only
a FileChooserButton. This is the glade file
--------------------hello.glade-------------------------------------
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE glade-interface SYSTEM "glade-2.0.dtd">
<!--*- mode: xml -*-->
<glade-interface>
<widget class="GtkWindow" id="hello_main_window">
<child>
<widget class="GtkLayout" id="layout1">
<property name="width_request">450</property>
<property name="height_request">450</property>
<property name="visible">True</property>
<property name="width">450</property>
<property name="height">450</property>
<child>
<widget class="GtkFileChooserButton" id="filechooserbutton1">
<property name="width_request">200</property>
<property name="height_request">30</property>
<property name="visible">True</property>
</widget>
<packing>
<property name="x">62</property>
<property name="y">175</property>
</packing>
</child>
</widget>
</child>
</widget>
</glade-interface>
---------------------------------------------------------------------
I then created the following simple C and C++ apps and noted which ones
gave the "assertion `G_IS_OBJECT (object)' failed" message. I would like
to find out why this happens with only some.
1. libglade C error
2. libglademm C++ no error
3. libglademm C++ with hello class error
4. gtk-builder C error
5. gtk-builder C++ no error
6. gtk-builder C++ with hello class error
Most of my apps use method 6 so that is the one on which I am focusing
my effort. I am pasting each hello file to this message
Damon Register
---------------------------------- 1. libglade -----------------------
#include <gtk/gtk.h>
#include <glade/glade.h>
int main(int argc, char *argv[])
{
GladeXML *xml;
GtkWidget *window;
gtk_init(&argc, &argv);
xml = glade_xml_new("../hello.glade", NULL, NULL);
window = glade_xml_get_widget (xml, "hello_main_window");
g_signal_connect (G_OBJECT (window), "delete-event", G_CALLBACK
(gtk_main_quit), NULL);
gtk_widget_show_all (window);
gtk_main();
g_object_unref (G_OBJECT (xml));
g_print( "it finished !\n" );
return 0;
}
---------------------------------- 2. libglademm ---------------------
#include <gtkmm.h>
#include <libglademm/xml.h>
#include <iostream>
Gtk::Window* pWindow = 0;
int main (int argc, char **argv)
{
Gtk::Main kit(argc, argv);
Glib::RefPtr<Gnome::Glade::Xml> refXml;
refXml = Gnome::Glade::Xml::create("../hello.glade");
refXml->get_widget("hello_main_window", pWindow);
if(pWindow)
{
kit.run(*pWindow);
}
return 0;
}
---------------------------------- 3. libglademm hello class ---------
#include <gtkmm.h>
#include <libglademm/xml.h>
#include <iostream>
Gtk::Window* pWindow = 0;
int main (int argc, char **argv)
{
Gtk::Main kit(argc, argv);
Glib::RefPtr<Gnome::Glade::Xml> refXml;
refXml = Gnome::Glade::Xml::create("../hello.glade");
refXml->get_widget("hello_main_window", pWindow);
if(pWindow)
{
kit.run(*pWindow);
}
return 0;
}
---------------------------------- 4. gtk-builder --------------------
#include <gtk/gtk.h>
int main(int argc, char *argv[])
{
GtkBuilder *builder;
GtkWidget *window;
gtk_init(&argc, &argv);
builder = gtk_builder_new ();
gtk_builder_add_from_file (builder, "../hello.xml", NULL);
window = GTK_WIDGET (gtk_builder_get_object (builder, "hello_main_window"));
g_signal_connect (G_OBJECT (window), "delete-event", G_CALLBACK
(gtk_main_quit), NULL);
gtk_widget_show (window);
gtk_main ();
g_object_unref (G_OBJECT (builder));
g_print( "it finished !\n" );
return 0;
}
---------------------------------- 5. gtk-builder C++ ----------------
#include <gtkmm.h>
#include <iostream>
Gtk::Window* pWindow = 0;
int main (int argc, char **argv)
{
Gtk::Main kit(argc, argv);
Glib::RefPtr<Gtk::Builder> refXml;
refXml = Gtk::Builder::create_from_file("../hello.xml");
refXml->get_widget("hello_main_window", pWindow);
if(pWindow)
{
kit.run(*pWindow);
}
return 0;
}
---------------------------------- 6. gtk-builder C++ hello class ----
#include <gtkmm.h>
#include <iostream>
class hello : public Gtk::Window
{
public:
hello();
virtual ~hello();
protected:
Glib::RefPtr<Gtk::Builder> refXml;
};
hello::hello()
{
refXml = Gtk::Builder::create_from_file("../hello.xml");
Gtk::Layout *layout1;
refXml->get_widget("layout1", layout1);
layout1->reparent(*this);
}
hello::~hello()
{
std::cout << "~hello()" << std::endl;
}
int main (int argc, char *argv[])
{
Gtk::Main kit(argc, argv);
hello window;
kit.run(window);
return 0;
}
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