Simple example -- To get started easily
Simple example
In this example, we will create a combo box, add an array
of key/value pairs and display the currently selected
pair in a label.
Пример 41-1. Simple Gtk2_IndexedComboBox example <?php
require_once 'Gtk2/IndexedComboBox.php';
//display this data
$arData = array(
1 => 'Germany',
2 => 'United Kingdom',
3 => 'Spain',
4 => 'France'
);
//Create combo and set the array
$combo = new Gtk2_IndexedComboBox();
$combo->set_array($arData);
//make #2 active
$combo->set_active_key(2);
//trace changes
$combo->connect('changed', 'comboChanged', $lbl);
function comboChanged($combo, $lbl)
{
$lbl->set_text(
"Combo changed:\r\n"
. 'Key: ' . $combo->get_active_key() . "\r\n"
. 'Value: ' . $combo->get_active_text()
);
}
//some label to display changes
$lbl = new GtkLabel("Status\r\n\r\n");
//standard stuff
$vbox = new GtkVBox();
$vbox->pack_start($combo);
$vbox->pack_start($lbl);
$wnd = new GtkWindow();
$wnd->connect_simple('destroy', array('Gtk', 'main_quit'));
$wnd->add($vbox);
$wnd->show_all();
Gtk::main();
?> |
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At first, we create a new combo widget object. You already could
pass the array of data in the constructor if you wanted to, but
here we use the set_array() method to do this.
After providing the data, entry with id 2 is made
active/pre-selected.
Whenever the selection changes, the example displays the selected
key and value in a label below the combo box. We use
get_active_key() to retrieve the key, and
get_active_text() to retrieve the value.
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