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by kksou
Sample Code 156: How to insert images in GtkTextView? |
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Written by kksou
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Monday, 29 January 2007 |
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Problem You want to allow users to insert images in a GtkTextView as shown below:
Solution
Sample Code The following image files are required by the sample code below. Please save a copy of the image files and put them in the same directory where you store the sample code.
 | icon_smile.gif |
 | icon_lol.gif |
 | icon_cool.gif |
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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("Insert images in GtkTextView\n".
"Click on the Emoticons to insert the smileys");
$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, 0.5, 0, 0);
$alignment->add($title);
$vbox->pack_start($alignment);
// Setup TextView
$buffer = new GtkTextBuffer();
$view = new GtkTextView();
$view->set_buffer($buffer);
$view->modify_font(new PangoFontDescription("Arial 10"));
$view->set_wrap_mode(Gtk::WRAP_WORD);
$hbox = new GtkHBox();
$hbox->pack_start(new ClickableImage('icon_smile.gif'), 0); // note 2
$hbox->pack_start(new ClickableImage('icon_lol.gif'), 0); // note 2
$hbox->pack_start(new ClickableImage('icon_cool.gif'), 0); // note 2
$vbox->pack_start($hbox, 0);
$scrolled_win = new GtkScrolledWindow();
$scrolled_win->set_policy( Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
$vbox->pack_start($scrolled_win);
$scrolled_win->add($view);
$window->show_all();
Gtk::main();
class ClickableImage extends GtkEventBox { // note 1
function __construct($img_filename) {
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Explanation
- Extends GtkEventBox to form a new class ClickableImage so that the icons are clickable.
- Set up three clickable Emoticons.
- Make the icons clickable.
- Get the current cursor position.
- Load the image.
- Create an anchor in GtkBuffer.
- Add the image at the anchor location.
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