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by kksou
Sample Code 253: How to set up clickable link using GtkLinkButton - Part 1 - using signal clicked? |
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Written by kksou
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Wednesday, 06 June 2007 |
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Problem You would like to set up a clickable link using the new widget GtkLinkButton available in gtk+2.10 and above as shown below:
Solution
- The link button is a subclass of GtkButton. We use it just like a standard GtkButton.
- Create a link button with the constructor
GtkLinkButton($label).
- To capture button clicks, we register the signal 'clicked' on the link button.
Important Note: This only works for PHP-GTK2 compliled with gtk+ v2.10 and above. If you are using an older version, for linux, you may follow the step-by-step instructions to recompile php-gtk2 with gtk+ v2.10. For windows, please refer to How to install php gtk2 on windows? You may also want to take a look here to see some of the new exciting PHP-GTK2 Functionalities.
Sample Code 1
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| <?php
$window = new GtkWindow();
$window->set_title($argv[0]);
$window->set_size_request(400, 150);
$window->connect_simple('destroy', array('Gtk','main_quit'));
$window->add($vbox = new GtkVBox());
// display title
$title = new GtkLabel("Set up clickable link using GtkLinkButton\n".
"Part 1 - using the signal 'clicked'");
$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);
$title->set_justify(Gtk::JUSTIFY_CENTER);
$alignment = new GtkAlignment(0.5, 0, 0, 0);
$alignment->add($title);
$vbox->pack_start($alignment, 0, 0);
$vbox->pack_start(new GtkLabel(), 0, 0);
// link button
$hbox = new GtkHBox();
$vbox->pack_start($hbox, false, false);
$link_button1 = new GtkLinkButton("manual"); // note 1
$link_button2 = new GtkLinkBUtton("mailing list"); // note 1
$hbox->pack_start(new GtkLabel("Reference: php-gtk2"), false);
$hbox->pack_start($link_button1, false);
$hbox->pack_start($link_button2, false);
// set up signal handler
$link_button1->connect('clicked', 'on_linkbutton', // note 2
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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.
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- Have some doubt about the registration? Please read this forum article.
Explanation
- Create the link button.
- Register the signal 'clicked'.
- Note that if you're running this example on linux, please comment out these 3 lines and replace with the system command to launch your favorite browser.
Note
- Note that for a link button, it is a button. And you will see the shape of the button when the cursor is over the button.
- You might want to compare this with the example How to put a clickable link in GtkLabel - Part 2? This one is a clickable label, and you will not see the shape of the button.
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March 26, 2008 4:46pm