Problem
You want to create detachable menu as shown below:
Solution
Creating detachable menu is the same as creating detachable toolbar.
- First create a menu as explained in the article How to set up menu and radio menu - Part 4 - allow Alt F Alt N?
- Create a GtkHandlebox, and stuff the menu in the handlebox. That's it!
Sample Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 23 24 25 27 31 32 33 34 35 36 37 38 39 40 41 42 44 45 46 47 48 50 51 55 56 57 58 59 60 61 62 63 65 66 67 68 69 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 90 92 93 94 95 96 97 103 104 105 106 110 111 112 113 115 116 117 118 119 120 121 122 123 124 125 127 128 129 130 131 132 133 134 135 136 142 143 145 147 148 149 150 151 152 154 161 162 163 165 166 167 171 172 173 174 175 176 178 181 182 188 189 190 191 192 193 194 195 196 | <?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("Detachable Menu"); $title->modify_font(new PangoFontDescription("Times New Roman Italic 10")); $title->modify_fg(Gtk::STATE_NORMAL, GdkColor::parse("#0000ff")); $vbox->pack_start($title); $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(); $handlebox = new GtkHandleBox(); // note 1 $handlebox->add($menubar); // note 2 $vbox->pack_start($handlebox, 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: $item\n"; if ($item=='E_xit') Gtk::main_quit(); } // 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 } $match = 0; foreach($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]; // get the ID $menuitem->activate(); // simulate a click $menu->popdown(); // close the toplevel menu $match = 1; // set the match flag break; } } return $match; // return control back to php-gtk } } ?> |
Output
As shown above.Explanation
This example make use of the code in How to set up menu and radio menu - Part 4 - allow Alt F Alt N?.
What's new here:
- Create a new handlebox.
- Stuff the menu in the handlebox.
Read more...