58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
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#include <gtkmm/box.h>
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#include <gtkmm/button.h>
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#include <gtkmm/label.h>
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#include <gtkmm/window.h>
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#include <gtkmm/main.h>
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class AppWindow
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: public Gtk::Window
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{
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public:
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AppWindow ();
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private:
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void on_button_clicked();
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Gtk::Label* m_label;
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};
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AppWindow::AppWindow()
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: m_label (NULL)
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{
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Gtk::Box* vbox = manage (new Gtk::VBox (false, 5));
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add(*vbox);
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Gtk::Button* button = Gtk::manage (new Gtk::Button ("Delete Label"));
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vbox->pack_start(*button, Gtk::PACK_SHRINK);
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//m_label = manage (new Gtk::Label ("test"));
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m_label = new Gtk::Label ("test");
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g_warning("m_label -> ref_count: %d\n", G_OBJECT(m_label->gobj())->ref_count);
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vbox->pack_start(*m_label, Gtk::PACK_SHRINK);
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g_warning("m_label -> ref_count: %d\n", G_OBJECT(m_label->gobj())->ref_count);
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button->signal_clicked ().connect( sigc::mem_fun(*this, &AppWindow::on_button_clicked) );
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show_all_children();
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}
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void AppWindow::on_button_clicked()
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{
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if(m_label)
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{
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g_warning("AppWindow::on_button_clicked(): label refcount=%d", G_OBJECT(m_label->gobj())->ref_count);
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delete m_label;
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m_label = 0;
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}
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}
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int main(int argc, char *argv[])
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{
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Gtk::Main kit(&argc, &argv);
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AppWindow app;
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Gtk::Main::run(app);
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return(0);
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}
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