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Problem When the user select File Open from the menu, you would like to allow the user to select the file with a file chooser dialog as shown below:
Solution
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| <?php
$window = new GtkWindow();
$window->set_size_request(400, 150);
$window->connect_simple('destroy', array('Gtk','main_quit'));
$window->add($vbox = new GtkVBox());
$accel_group = new GtkAccelGroup();
$window->add_accel_group($accel_group);
// define menu definition
$menu_definition = array(
'_File' => array('_New|N', '_Open|O', '_Close|C', '<hr>',
'_Save|S', 'Save _As','<hr>', 'E_xit'),
'_Edit' => array('Cu_t|X', '_Copy|C', '_Paste|V', '<hr>',
'Select _All|A', '<hr>', '_Undo|Z','_Redo|Y'),
'_Test' => array('Test_1|1', 'Test_2|2', 'Test_3|3', '<hr>',
array('Selection 1', 'Selection 2', 'Selection 3'),
'<hr>', 'Test_4|4')
);
$menu = new Menu($vbox, $menu_definition, $accel_group);
// display title
$title = new GtkLabel("Open a file with GtkFileChooser");
$title->modify_font(new PangoFontDescription("Times New Roman Italic 10"));
$title->modify_fg(Gtk::STATE_NORMAL, GdkColor::parse("#0000ff"));
$vbox->pack_start($title);
$vbox->pack_start(new GtkLabel("Press Ctrl-O to open the file chooser"));
$vbox->pack_start(new GtkLabel(""));
$window->show_all();
Gtk::main();
// class Menu
class Menu {
var $prev_keyval = 0;
var $prev_state = 0;
var $prev_keypress = '';
function Menu($vbox, $menu_definition, $accel_group) {
$this->menu_definition = $menu_definition;
$menubar = new GtkMenuBar();
$vbox->pack_start($menubar, 0, 0);
foreach($menu_definition as $toplevel => $sublevels) {
$top_menu = new GtkMenuItem($toplevel);
$menubar->append($top_menu);
$menu = new GtkMenu();
$top_menu->set_submenu($menu);
// let's ask php-gtk to tell us when user press the 2nd Alt key
$menu->connect('key-press-event', array(&$this, 'on_menu_keypress'),
$toplevel);
foreach($sublevels as $submenu) {
if (strpos("$submenu", '|') === false) {
$accel_key = '';
} else {
list($submenu, $accel_key) = explode('|', $submenu);
}
if (is_array($submenu)) { // set up radio menus
$i=0;
$radio[0] = null;
foreach($submenu as $radio_item) {
$radio[$i] = new GtkRadioMenuItem($radio[0], $radio_item);
$radio[$i]->connect('toggled', array(&$this, "on_toggle"));
$menu->append($radio[$i]);
++$i;
}
$radio[0]->set_active(1); // select the first item
} else {
if ($submenu=='<hr>') {
$menu->append(new GtkSeparatorMenuItem());
} else {
$submenu2 = str_replace('_', '', $submenu);
$submenu2 = str_replace(' ', '_', $submenu2);
$stock_image_name = 'Gtk::STOCK_'.strtoupper($submenu2);
if (defined($stock_image_name)) {
$menu_item = new GtkImageMenuItem(
constant($stock_image_name));
} else {
$menu_item = new GtkMenuItem($submenu);
}
if ($accel_key!='') {
$menu_item->add_accelerator("activate",
$accel_group, ord($accel_key), Gdk::CONTROL_MASK, 1);
}
$menu->append($menu_item);
$menu_item->connect('activate',
array(&$this, 'on_menu_select'));
$this->menuitem[$toplevel][$submenu] = $menu_item;
}
}
}
}
}
// process radio menu selection
function on_toggle($radio) {
$label = $radio->child->get_label();
$active = $radio->get_active();
echo("radio menu selected: $label\n");
}
// process menu item selection
function on_menu_select($menu_item) {
$item = $menu_item->child->get_label();
echo "menu selected: $item\n";
if (method_exists($this, $item)) $this->$item();
if ($item=='E_xit') Gtk::main_quit();
}
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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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Explanation The above sample code is based on How to set up menu and radio menu - Part 4 - allow Alt F Alt N?.
What's new here:
- Added this line so that the script will call the function
_Open() when user selects File Open.
- The third parameter is GtkFileChooserAction. Since we are opening a file here, we choose
Gtk::FILE_CHOOSER_ACTION_OPEN.
- Retrieve the selected file.
Note
Related Links
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