The Hildon::FileChooserDialog is the Maemo equivalent for the Gtk::FileChooserDialog. As it is derived from Gtk::FileChooser you can use the same API.
void show_file_chooser()
{
Hildon::FileChooserDialog dialog(*this, Gtk::FILE_CHOOSER_ACTION_OPEN);
//Add response buttons to the dialog:
dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
dialog.add_button("Select", Gtk::RESPONSE_OK);
int result = dialog.run();
//Handle the response:
switch(result)
{
case(Gtk::RESPONSE_OK):
{
Glib::ustring filename = dialog.get_filename();
/* Do something with filename */
break;
}
case(Gtk::RESPONSE_CANCEL):
{
/* Cancel clicked */
break;
}
default:
{
break;
}
}
}
Some parts of the example will be explained in detail:
Hildon::FileChooserDialog dialog(*this, Gtk::FILE_CHOOSER_ACTION_OPEN);
Creates a new file chooser used to open files and set the parent to the the window (*this) which opens the dialog. There are different option availible for the dialog:
Gtk::FILE_CHOOSER_ACTION_OPEN: The file chooser will only let the user pick an existing file.
Gtk::FILE_CHOOSER_ACTION_SAVE: The file chooser will let the user pick an existing file, or type in a new filename.
Gtk::FILE_CHOOSER_ACTION_SELECT_FOLDER: The file chooser will let the user pick an existing folder.
Gtk::FILE_CHOOSER_ACTION_CREATE_FOLDER: The file chooser will let the user name an existing or new folder.
Glib::ustring filename = dialog.get_filename();
This is the most important method of the Gtk::FileChooser interface because here you can receive the file choosen in the dialog.
Here is the full example code for the FileChooserDialog:
examplewindow.h
//$Id: examplewindow.h,v 1.1 2003/11/03 09:29:56 murrayc Exp $ -*- c++ -*-
/* gtkmm example Copyright (C) 2002 gtkmm development team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef GTKMM_EXAMPLEWINDOW_H
#define GTKMM_EXAMPLEWINDOW_H
#include <gtkmm.h>
class ExampleWindow : public Gtk::Window
{
public:
ExampleWindow();
virtual ~ExampleWindow();
protected:
//Signal handlers:
virtual void on_button_file_clicked();
virtual void on_button_folder_clicked();
//Child widgets:
Gtk::VButtonBox m_ButtonBox;
Gtk::Button m_Button_File, m_Button_Folder;
};
#endif //GTKMM_EXAMPLEWINDOW_H
examplewindow.cc
//$Id: examplewindow.cc,v 1.5 2004/03/25 14:35:34 murrayc Exp $ -*- c++ -*-
/* gtkmm example Copyright (C) 2002 gtkmm development team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "examplewindow.h"
#include <hildon-fmmm/file-chooser-dialog.h>
#include <iostream>
ExampleWindow::ExampleWindow()
: m_Button_File("Choose File"),
m_Button_Folder("Choose Folder")
{
set_title("Hildon::FileChooserDialog example");
add(m_ButtonBox);
m_ButtonBox.pack_start(m_Button_File);
m_Button_File.signal_clicked().connect( sigc::mem_fun(*this, &ExampleWindow::on_button_file_clicked) );
m_ButtonBox.pack_start(m_Button_Folder);
m_Button_Folder.signal_clicked().connect( sigc::mem_fun(*this, &ExampleWindow::on_button_folder_clicked) );
show_all_children();
}
ExampleWindow::~ExampleWindow()
{
}
void ExampleWindow::on_button_folder_clicked()
{
Hildon::FileChooserDialog dialog(*this, Gtk::FILE_CHOOSER_ACTION_SELECT_FOLDER);
//dialog.set_transient_for(*this);
//Add response buttons the the dialog:
dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
dialog.add_button("Select", Gtk::RESPONSE_OK);
int result = dialog.run();
//Handle the response:
switch(result)
{
case(Gtk::RESPONSE_OK):
{
std::cout << "Select clicked." << std::endl;
std::cout << "Folder selected: " << dialog.get_filename() << std::endl;
break;
}
case(Gtk::RESPONSE_CANCEL):
{
std::cout << "Cancel clicked." << std::endl;
break;
}
default:
{
std::cout << "Unexpected button clicked." << std::endl;
break;
}
}
}
void ExampleWindow::on_button_file_clicked()
{
Hildon::FileChooserDialog dialog(*this, Gtk::FILE_CHOOSER_ACTION_OPEN);
//dialog.set_transient_for(*this);
//Add response buttons the the dialog:
dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
dialog.add_button(Gtk::Stock::OPEN, Gtk::RESPONSE_OK);
//Add filters, so that only certain file types can be selected:
Gtk::FileFilter filter_text;
filter_text.set_name("Text files");
filter_text.add_mime_type("text/plain");
dialog.add_filter(filter_text);
Gtk::FileFilter filter_cpp;
filter_cpp.set_name("C/C++ files");
filter_cpp.add_mime_type("text/x-c");
filter_cpp.add_mime_type("text/x-c++");
filter_cpp.add_mime_type("text/x-c-header");
dialog.add_filter(filter_cpp);
Gtk::FileFilter filter_any;
filter_any.set_name("Any files");
filter_any.add_pattern("*");
dialog.add_filter(filter_any);
//Show the dialog and wait for a user response:
int result = dialog.run();
//Handle the response:
switch(result)
{
case(Gtk::RESPONSE_OK):
{
std::cout << "Open clicked." << std::endl;
std::string filename = dialog.get_filename(); //Notice that it is a std::string, not a Glib::ustring.
std::cout << "File selected: " << filename << std::endl;
break;
}
case(Gtk::RESPONSE_CANCEL):
{
std::cout << "Cancel clicked." << std::endl;
break;
}
default:
{
std::cout << "Unexpected button clicked." << std::endl;
break;
}
}
}
main.cc
//$Id: main.cc,v 1.1 2003/11/03 09:29:56 murrayc Exp $ -*- c++ -*-
/* gtkmm example Copyright (C) 2002 gtkmm development team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <gtkmm/main.h>
#include "examplewindow.h"
int main(int argc, char *argv[])
{
Gtk::Main kit(argc, argv);
ExampleWindow window;
Gtk::Main::run(window); //Shows the window and returns when it is closed.
return 0;
}
The documentation for the standard GTKmm FileChooser handling can be found in the GTKmm tutorial.