examplewindow.cc

Developing with Gnome一书examples例子代码

#include "ExampleWindow.h"
#include <iostream>

using namespace std;

ExampleWindow::ExampleWindow(
  BaseObjectType* base_object,
  const Glib::RefPtr<Gnome::Glade::Xml>& glade_xml)
  : Gtk::Window(base_object)
{
  // Get the necessary widgets
  glade_xml->get_widget("SensitivityCheckButton", d_sensitivity_check_button);
  glade_xml->get_widget("OohTellMe",              d_ooh_tell_me);
  glade_xml->get_widget("QuitButton",             d_quit_button);

  // Connect the appropriate callbacks...
  d_sensitivity_check_button->signal_toggled().connect(
    sigc::mem_fun(*this, &ExampleWindow::sensitivity_toggled) );
  d_quit_button->signal_clicked().connect( 
    sigc::mem_fun(*this, &ExampleWindow::time_to_quit) );
}

ExampleWindow::~ExampleWindow()
{
}

void
ExampleWindow::sensitivity_toggled()
{
  d_ooh_tell_me->set_sensitive( d_sensitivity_check_button->get_active() );
}

void
ExampleWindow::time_to_quit()
{
  // If the user checked the OohTellMe button, we need to do some work...
  if (d_ooh_tell_me->get_active()) {

    // Change the checkbutton's label
    d_ooh_tell_me->set_label("M_ock me");

    /* Since we don't return to the main event loop, we have to
     * manually tell gtk+ to process the set_label change (and any
     * other changes that require processing).
     */
    while (Glib::MainContext::get_default()->iteration(false))
        ;

    // Mock the user and give them some time to notice the change
    cout << "Ha ha, you fell for it!  ";
    cout << "I will not tell you what that checkbutton does!" << endl;
    sleep(1);
  }

  hide();
}

bool
ExampleWindow::on_delete_event(GdkEventAny* event)
{
  time_to_quit();

  // No other handlers need be called...
  return true;
}