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Problem This is in response to the comments of Wim Stockman from Belgium with regards to opening multiple files with GtkFileChooser.
He pointed out that we can also open multiple files with GtkFileChooser.
So here is a complete sample code of allowing multiple files selection with GtkFileChooserDialog as shown below. Note that just like in the explorer, you can select multiple files with shift click or ctrl-click.
Solution
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());
$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 multiple files 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();
}
// let user choose a file with a file chooser dialog
function _Open() {
$dialog = new GtkFileChooserDialog("File Open", null,
Gtk::FILE_CHOOSER_ACTION_OPEN,
array(Gtk::STOCK_OK, Gtk::RESPONSE_OK), null);
$dialog->set_select_multiple(true); // note 1
$dialog->show_all();
if ($dialog->run() == Gtk::RESPONSE_OK) {
$selected_files = $dialog->get_filenames(); // note 2
echo "Total number of files selected = ".
count($selected_files)."\n";
for ($i=0; $i<count($selected_files); ++$i) {
echo "file[$i] = $selected_files[$i]\n";
}
}
$dialog->destroy();
}
// processing of menu keypress
function on_menu_keypress($menu, $event, $toplevel) {
if (!$event->state & Gdk::MOD1_MASK) return false;
// get the ascii equivalent of the keypress
$keypress = '';
if ($event->keyval<255) {
$keypress = chr($event->keyval); // ascii equivalent
$keypress = strtolower($keypress); // convert to lowercase
}
$match = 0; // flag to see if there's a match
foreach($this->menu_definition[$toplevel] as $submenu) {
if (!preg_match("/.*_([a-zA-Z0-9]).*/", "$submenu", $matches))
continue;
$key2 = strtolower($matches[1]);
if ($keypress==$key2) {
if (strpos("$submenu", '|') === false) {
$accel_key = '';
} else {
list($submenu, $accel_key) = explode('|', $submenu);
}
$menuitem = $this->menuitem[$toplevel][$submenu];
$menuitem->activate();
$menu->popdown();
$match = 1;
break;
}
}
return $match;
}
}
?> |
Explanation The above sample code is based on How to open a file with GtkFileChooser?.
What's new here:
- Enable multiple files selection.
- Retrieve the selected files.
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