190. How to change the font and color of checkbox labels?

Problem

You would like to change the font and set the color of the labels of GtkCheckButtons as shown below:

How to change the font and color of checkbox labels?


Solution


Sample Code

1   
 2   
 3   
 4   
 5   
 6   
 8   
 9   
 10   
 11   
 12   
 13   
 14   
 15   
 16   
 17   
 18   
 19   
 20   
 21   
 22   
 23   
 24   
 25   
 26   
 27   
 28   
 29   
 30   
 31   
 32   
 33   
 35   
 36   
 37   
 38   
 39   
 40   
 41   
 42   
 43   
 44   
 45   
 46   
 47   
 48   
 49   
 50   
 51   
 52   
 53   
 54   
 55   
 56   
 57   
 58   
 59   
 60   
 61   
<?php
$window = new GtkWindow();
$window->set_size_request(400, 240);
$window->connect_simple('destroy', array('Gtk','main_quit'));
$window->add($vbox = new GtkVBox());

// display title
$title = new GtkLabel("Change the font and set the color of checkbox labels");
$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);

// setup checkboxes
$checkbox1 = setup_checkbox('checkbox 1');
$checkbox2 = setup_checkbox('checkbox 2', "Arial Bold 16");
$checkbox3 = setup_checkbox('checkbox 3', "Times New Roman Italic 20", "#0000ff");

// pack them inside vbox
$vbox->pack_start($checkbox1, 0, 0);
$vbox->pack_start($checkbox2, 0, 0);
$vbox->pack_start($checkbox3, 0, 0);

// add a status area
$vbox->pack_start($status_area = new GtkLabel('Select the checkboxes'));

$window->show_all();
Gtk::main();

// function to simplify the display of grouped radio buttons
function setup_checkbox($label, $fg='', $color='') {
    $checkbox = new GtkCheckButton($label);
    $checkbox->connect('toggled', "on_toggle");
    $button_label = $checkbox->child; // note 1
    if ($fg!='')
        $button_label->modify_font(new PangoFontDescription($fg)); // note 2
    if ($color!='') {
        $button_label->modify_fg(Gtk::STATE_NORMAL, GdkColor::parse($color)); // note 3
        $button_label->modify_fg(Gtk::STATE_PRELIGHT, GdkColor::parse($color)); // note 3
        $button_label->modify_fg(Gtk::STATE_ACTIVE, GdkColor::parse($color)); // note 3
    }
    return $checkbox;
}

// call-back function when user pressed a radio button
function on_toggle($checkbox) {
    global $status_area;
    $label = $checkbox->child->get_label();

    global $checkbox1, $checkbox2, $checkbox3;
    $status1 = $checkbox1->get_active() ? 'on' : 'off';
    $status2 = $checkbox2->get_active() ? 'on' : 'off';
    $status3 = $checkbox3->get_active() ? 'on' : 'off';
    $status_area->set_text("Status of checkbox1: $status1\n
Status of checkbox2: $status2\n
Status of checkbox3: $status3");

}
?>

Output

As shown above.

 

Add comment

Security code
Refresh