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| <?php
$window = new GtkWindow();
$window->set_title($argv[0]);
$window->set_size_request(400, 175);
$window->connect_simple('destroy', array('Gtk','main_quit'));
$window->add($vbox = new GtkVBox());
// display title
$title = new GtkLabel(" Set up a countdown timer\n".
"Part 3 - accurate to a hundredth of a second");
$title->modify_font(new PangoFontDescription("Times New Roman Italic 10"));
$title->modify_fg(Gtk::STATE_NORMAL, GdkColor::parse("#0000ff"));
$title->set_size_request(-1, 40);
$vbox->pack_start($title, 0, 0);
$vbox->pack_start(new GtkLabel(), 0, 0);
$vbox->pack_start(new GtkLabel('Click the button to start the timer'), 0, 0);
$vbox->pack_start(new GtkLabel('When the time is up, an alert message is displayed.'), 0, 0);
$vbox->pack_start(new GtkLabel(), 0, 0);
$vbox->pack_start($hbox = new GtkHBox(), 0, 0);
$hbox->pack_start($button = new GtkButton('Start timer'), 1, 0);
$vbox->pack_start(new GtkLabel());
$button->connect('clicked', 'start_timer');
$window->show_all();
Gtk::main();
// display an alert dialog box
function alert($msg) {
$dialog = new GtkDialog('Alert', null, Gtk::DIALOG_MODAL);
$dialog->set_position(Gtk::WIN_POS_CENTER_ALWAYS);
$top_area = $dialog->vbox;
$top_area->pack_start($hbox = new GtkHBox());
$stock = GtkImage::new_from_stock(Gtk::STOCK_DIALOG_WARNING,
Gtk::ICON_SIZE_DIALOG);
$hbox->pack_start($stock, 0, 0);
$hbox->pack_start(new GtkLabel($msg));
$dialog->add_button(Gtk::STOCK_OK, Gtk::RESPONSE_OK);
$dialog->set_has_separator(false);
$dialog->show_all();
$dialog->run();
$dialog->destroy();
}
function start_timer($button) {
$do_long_task = new DoLongTask();
$do_long_task->total_time = 10;
$do_long_task->process_task();
$do_long_task->timeout_ID = Gtk::timeout_add(10,
array(&$do_long_task, 'process_task')); // note 1
}
class DoLongTask {
var $progress;
var $dialog;
var $subtask_count = 0;
var $max_task_count = 10; // note 2
var $timeout_ID;
var $start_time;
function DoLongTask() {
// setup a dialog containing progress bar
$dialog = new GtkDialog('Timer',
null, Gtk::DIALOG_MODAL); // create a new dialog
$top_area = $dialog->vbox;
$dialog->set_size_request(200, 60);
$this->progress = new GtkLabel();
$this->progress->modify_font(new PangoFontDescription("Times New Roman Italic 20"));
$top_area->pack_start($this->progress);
$dialog->set_has_separator(false);
$dialog->show_all(); // show the dialog
$this->dialog = $dialog; // keep a copy of the dialog ID
$dialog->connect('delete-event',
array( &$this, "on_delete_event"));
$this->start_time = microtime(1);
}
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