FontChooserDialog

El FontChooserDialog le permite al usuario elegir una tipografía. El FontButton abre un diálogo de selección de tipografía cuando se pulsa.

Reference

15.4.1. Ejemplo

Figura 15-4FontChooserDialog

Source Code

File: examplewindow.h (For use with gtkmm 4)

#ifndef GTKMM_EXAMPLEWINDOW_H
#define GTKMM_EXAMPLEWINDOW_H

#include <gtkmm.h>

class ExampleWindow : public Gtk::Window
{
public:
  ExampleWindow();
  virtual ~ExampleWindow();

protected:
  //Signal handlers:
  void on_font_button_font_set();
  void on_button_dialog_clicked();

  //Child widgets:
  Gtk::Box m_ButtonBox;
  Gtk::FontButton m_FontButton;
  Gtk::Button m_Button_Dialog;
};

#endif //GTKMM_EXAMPLEWINDOW_H

File: main.cc (For use with gtkmm 4)

#include "examplewindow.h"
#include <gtkmm/application.h>

int main(int argc, char *argv[])
{
  auto app = Gtk::Application::create("org.gtkmm.example");

  ExampleWindow window;

  //Shows the window and returns when it is closed.
  return app->run(window, argc, argv);
}

File: examplewindow.cc (For use with gtkmm 4)

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

ExampleWindow::ExampleWindow()
: m_ButtonBox(Gtk::Orientation::VERTICAL),
  m_FontButton("Sans 10"),
  m_Button_Dialog("Choose Font")
{
  set_title("Gtk::FontChooserDialog example");

  add(m_ButtonBox);

  m_ButtonBox.add(m_FontButton);
  m_FontButton.set_expand(true);
  m_FontButton.set_use_font(true);
  m_FontButton.set_use_size(true);
  m_FontButton.signal_font_set().connect(sigc::mem_fun(*this,
    &ExampleWindow::on_font_button_font_set) );

  m_ButtonBox.add(m_Button_Dialog);
  m_Button_Dialog.set_expand(true);
  m_Button_Dialog.signal_clicked().connect(sigc::mem_fun(*this,
    &ExampleWindow::on_button_dialog_clicked) );
}

ExampleWindow::~ExampleWindow()
{
}

void ExampleWindow::on_font_button_font_set()
{
  auto font_name = m_FontButton.get_font();
  std::cout << "Font chosen: " << font_name << std::endl;
}

void ExampleWindow::on_button_dialog_clicked()
{
  Gtk::FontChooserDialog dialog("Please choose a font", *this);

  //Get the previously selected font name from the FontButton:
  dialog.set_font(m_FontButton.get_font());

  int result = dialog.run();

  //Handle the response:
  switch(result)
  {
    case Gtk::ResponseType::OK:
    {
      auto font_name = dialog.get_font();
      std::cout << "Font chosen: " << font_name << std::endl;
      m_FontButton.set_font(font_name);
      break;
    }
    case Gtk::ResponseType::CANCEL:
    {
      std::cout << "Cancel clicked." << std::endl;
      break;
    }
    default:
    {
      std::cout << "Unexpected button clicked: " << result << std::endl;
      break;
    }
  }
}