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Problem This is in response to Nitro7's post titled "Countdown Timer".
When a button is pressed in an application, he wants another window to open up that displays a minute and second countdown as shown below:
When the time is up, an alert message will be displayed:
Solution
$shell = new COM('WScript.Shell');
$shell->Run('cmd /c start "" "' . $cmd_to_play_sound_file . '"', 0, FALSE);
unset($shell);
where $cmd_to_play_sound_file is the command from system prompt to play your sound file. You can try to put just the name of the sound file here. It should be able to launch the appropriate player automatically.
Sample Code 1
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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 - Part 1");
$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->time_left = 10; // note 1
$do_long_task->process_task(); // note 2
$do_long_task->timeout_ID = Gtk::timeout_add(1000,
array(&$do_long_task, 'process_task')); // note 3
}
class DoLongTask {
var $progress;
var $dialog;
var $time_left;
var $subtask_count = 0;
var $max_task_count = 10;
var $timeout_ID;
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
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- Note that this is only 70% of the sample code. You have to be a registered member to see the entire sample code. Please login or register.
- Registration is free and immediate.
- Have some doubt about the registration? Please read this forum article.
Explanation The above code is based on How to display progress bar while processing long task - Part 2 using_idle_add?
We also make use of the code from How to display a popup alert for required fields - Part 1? to display the alert message.
What's new here:
- Sets the time in seconds. Here I set it at 10 seconds. For 15 minutes, set it as 15*60.
- Display the initial time first.
- Update the timer once every second.
- Display the remaining time.
- Time's up?
- Yes, here we display an alert message. You can replace this with playing of sound file, etc.
Related Links
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