Re: Resolved a problem but there is another problem

AngeloP wrote:

Try this code and then see line nr 144 145 modify... commenting line
I've a problem if I select the line with a enter key not with a mouse..
what is the difference?

ERROR

(prog_combo01.phpw:2200): GLib-GObject-WARNING **: invalid cast from `GtkTreeView' to `GtkWindow'

In case you want to stick to your original solution, just change your line 146
    $GLOBALS["sub_win"]->destroy();
to:
    Gtk::idle_add('on_destroy', $GLOBALS["sub_win"], $GLOBALS["sub_win"]);

and it should solve the problem.

For some reason, php-gtk2 needs to do some "clean-up" after calling your signal handler "on_cursor_row". However, you "destroyed" the popup window right inside the signal handler. Hence the error message. By using idle_add, you allow php-gtk2 to do any necessary clean-up, and you destroy the dialog in your other signal handler "on_destroy".

Regards,
/kksou

p.s. here's your original solution, with only the above-mentioned line changed:

<?php
$window = &new GtkWindow();
$window->connect_simple('destroy', array( 'Gtk', 'main_quit'));
$window->set_size_request(-1,-1);

$window->add($vbox = new GtkVBox());


// the initial selection
$list = array('item 1', 'item 2', 'item 3', 'item 4');

$vbox->pack_start($hbox=new GtkHBox(), 0, 0);
$hbox->pack_start($label= new GtkLabel('Select: '), 0, 0);
$hbox->pack_start($entry =  new GtkEntry(), 0, 0);
$hbox->pack_start($button = new GtkButton('V'), 0, 0);
$GLOBALS["entry"]=$entry;

$button->set_size_request(18,18);
$button->connect('clicked', "on_button");

//========================================================================
function on_button($button) { // process button click
        global $window, $entry;

        // == ENTRY POSITION
        $win_pos=$window->get_position();
        $x_field_pos=$entry->allocation->x;
        $y_field_pos=$entry->allocation->y;
        $x_shift=4;
        $y_shift=23+$entry->allocation->height;

        $x_win=$win_pos[0]+$x_field_pos+$x_shift;
        $y_win=$win_pos[1]+$y_field_pos+$y_shift;

        //==============================================
        // CREO LA FINESTRA
        //$sub_win = &new GtkWindow(Gtk::WINDOW_POPUP);
        $sub_win = new GtkWindow();
        global $t_win;
        $t_win = $sub_win;
        $GLOBALS["sub_win"]=$sub_win;
        $sub_win ->set_decorated(false);


        $sub_win ->set_size_request(400,250);
        $sub_win ->set_uposition($x_win,$y_win);
        $sub_win ->set_modal(true);
        $sub_win ->set_transient_for($window);
        //=========================================

        $sub_win->add($vbox = new GtkVBox());

        // Set up a scroll window
        $scrolled_win = new GtkScrolledWindow();
        $scrolled_win->set_policy( Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
        $vbox->pack_start($scrolled_win);
        // ==================================================
        // INSERISCO IL GTKTREEVIEW NEL SCROLLED WINDOW
        $data=array(
        array("01","Ferro"),
        array("02","Acciaio"),
        array("03","Tungsteno"),
        array("042","Rame"),
        array("044","Piombo"),
        array("05","Alluminio"),
        array("06","Carbonio"),
        array("07","Uranio"),
        array("08","Cobalto"),
        array("07","Plutonio"),
        array("08","Ottone"),
        array("09","Zama"),
        array("10","Molibdeno"),
        array("11","Bronzo"),
        array("12","Oro"),
        array("13","Argento"),
        array("14","Platino"),
        array("15","Berillio")
        );

        display_table($scrolled_win, $data);


        // =================================================


        $vbox->pack_start($button = new GtkButton('Chiudi'), 0, 0);
        $button->connect('clicked', "on_destroy", $sub_win);

        $sub_win ->show_all();

}



function display_table($scrolled_win, $data) {
        // Creates the list store
        $model = new GtkListStore(Gtk::TYPE_STRING, Gtk::TYPE_STRING); // note 2
        $field_header = array('Row #', 'Description'); // note 3

        // Creates the view to display the list store
        $view = new GtkTreeView($model); // note 4
        $scrolled_win->add($view); // note 5

        // Creates columns
        for ($col=0; $col<count($field_header); ++$col) {
                $cell_renderer = new GtkCellRendererText();
                $column = new GtkTreeViewColumn($field_header[$col], $cell_renderer, 'text', $col);
                $view->append_column($column);
        }

        // pupulates the data
        for ($row=0; $row<count($data); ++$row) {
                $values = array();
                for ($col=0; $col<count($data[$row]); ++$col) {
                        $values[] = $data[$row][$col];
                }
                $model->append($values); // note 6
        }
        $view->connect('button-press-event', 'on_view_button_press', $view); // note 1
        $view->connect('select-cursor-row', 'on_cursor_row', $view); // note 1
}



function on_view_button_press($widget, $event, $view) {

        if ( $event->type==Gdk::_2BUTTON_PRESS) {  // note 2

                on_cursor_row ($widget, $event, $view);
                // Uncomment these line
                //$GLOBALS["sub_win"]->destroy();
        }

}


function on_cursor_row ($widget, $event, $view) {
        $selection = $view->get_selection();
        list($model, $iter) = $selection->get_selected();
        $itemnum = $model->get_value($iter, 0); // note 3
        $desc = $model->get_value($iter, 1);
        $GLOBALS["entry"]->set_text($itemnum.' '.$desc);
        // PROBLEM WITH ENTER KEY
        // Comment the next line
        #$GLOBALS["sub_win"]->destroy();
        Gtk::idle_add('on_destroy', $GLOBALS["sub_win"], $GLOBALS["sub_win"]);

        echo "ATTENZIONE Codice: $itemnum Desrizione : $desc\n";

        return false;
}

function on_destroy($button,$obj) {
        $obj->destroy();
}

$window->show_all();
Gtk::main();
?>