Sample Code 190: How to change the font and color of checkbox labels? |
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Written by kksou
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Saturday, 03 March 2007 |
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Problem You would like to change the font and set the color of the labels of GtkCheckButtons as shown below:
Solution
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| <?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
}
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Explanation The above example make use of the code in How to setup and process checkboxes?
What's new here:
- Get the button label.
- Set the font and font size of the button label.
- Set the color of the button label.
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