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edlynn
Joined: 29 Sep 2006
Posts: 10
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 Posted: Tue Oct 17, 2006 11:43 am Post subject: GtkDialog not displaying label |
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Hi, i have an app which searches a DB. When the search starts i create a GTkDialog, with a label, and when it ends i destroy it. Problem is the app needs to run in the background when the dialog is displayed. If i use $dialog->run() it displays fine, but it stops the main loop, which i cant have. If i do show_all instead, it shows the dialog window, but no label is visible. Here's my code...
| Code: |
$text = "sometext";
$dialogOptions = 0;
$dialog = new GtkDialog('Message',null,$dialogOptions,$dialogButtons);
$message = new GtkLabel($text);
$dialog ->vbox->pack_start($text);
$dialog ->show_all();
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if i do $dialog->vbox->show_all() it doesnt display anything.
Any ideas please? |
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cohort
Joined: 07 Feb 2006
Posts: 47
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| Posted: Tue Oct 17, 2006 12:03 pm Post subject: Re: GtkDialog not displaying label |
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| edlynn wrote: | Here's my code...
| Code: |
$message = new GtkLabel($text);
$dialog ->vbox->pack_start($text);
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I hope it's not the code you're actually using...
You pack $text when you should be packing $message |
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edlynn
Joined: 29 Sep 2006
Posts: 10
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| Posted: Tue Oct 17, 2006 12:30 pm Post subject: |
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Sorry, yes, im doing
| Code: |
$dialog->vbox->pack_start($message);
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edlynn
Joined: 29 Sep 2006
Posts: 10
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| Posted: Tue Oct 17, 2006 12:36 pm Post subject: |
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I think its could be something to do with me trying to create and display the dialog inside a function, and then im trying to passed the dialog back so i can select when to destroy it. So im doing ...
| Code: |
$msg = $this->popUpDialog("Searching","No buttons");
//do some work here
$msg->destory();
function popUpDialog ($text,$extra)
{
echo "Showing Dialog";
$dialogOptions = 0;
//Set up buttons
$dialogButtons = array();
//Dont show a horizontal seperator
$dialogOptions = $dialogOptions | Gtk::DIALOG_NO_SEPARATOR;
//Create the dialog
$dialog = new GtkDialog('Message',null,$dialogOptions,$dialogButtons);
//Add message
$message = new GtkLabel($text);
$dialog->vbox->pack_start($message);
//display the dialog
$dialog->vbox->show_all();
$dialog->show_all();
return $dialog;
}
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If i remove the $msg->destroy() it behaves quite oddly. When the window appears, there is no text in it. After the "//doing some work part" the label then appears! I'm obviously doing something wrong / odd here but i cant figure it out. |
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kksou
Joined: 06 Sep 2006
Posts: 25
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| Posted: Tue Oct 17, 2006 3:57 pm Post subject: |
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Hi Edlynn,
Guess you're trying to show a dialog saying "in progress..." before starting a long job. Ideally when the job is done, you will close the dialog.
Please take a look at the article:
http://www.nabble.com/-PHP-GTK--Help-with-Dialog-Popup-t196050.html
There are some solutions suggested there.
Regards,
/kksou
Last edited by kksou on Fri Oct 20, 2006 7:40 pm; edited 1 time in total |
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edlynn
Joined: 29 Sep 2006
Posts: 10
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| Posted: Wed Oct 18, 2006 12:25 pm Post subject: |
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| Yes, thats exactly what i'm trying to do. Thanks for the reply, i'll have a look at that article. |
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kksou
Joined: 06 Sep 2006
Posts: 25
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| Posted: Fri Oct 20, 2006 7:37 pm Post subject: |
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Here's a sample code that displays a progress bar while processing a long task as shown below:
| Code: | <?php
$window = new GtkWindow();
$window->set_size_request(400, 120);
$window->connect_simple('destroy', array('Gtk','main_quit'));
$window->add($vbox = new GtkVBox());
// display title
$title = new GtkLabel("Display progress bar while processing long task");
$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);
$vbox->pack_start($title, 0, 0);
$vbox->pack_start(new GtkLabel(), 0, 0); // add a small gap
$vbox->pack_start($hbox = new GtkHBox(), 0, 0);
$hbox->pack_start($button = new GtkButton('Start processing'), 1, 0);
$button->connect('clicked', 'start_processing');
$window->show_all();
Gtk::main();
function start_processing($button, $entry) {
$show_progress_dialog = new ShowProgress(); // note 1
$max = 30000; // note 2
for ($i=0; $i<$max; ++$i) {
echo "$i "; // note 2
if ($i%1000==0) { // note 3
$percent_complete = number_format($i/$max*100, 0);
$show_progress_dialog->progress_bar->set_fraction($i/$max); // note 4
$show_progress_dialog->progress_bar->set_text($percent_complete.'% Complete'); // note 5
while (Gtk::events_pending()) {Gtk::main_iteration();} // note 6
}
}
$show_progress_dialog->dialog->destroy(); // done. close the dialog box.
}
class ShowProgress { // note 1
var $progress_bar;
var $dialog;
function ShowProgress() {
$dialog = new GtkDialog('Work in progress...', null, Gtk::DIALOG_MODAL); // create a new dialog
$top_area = $dialog->vbox;
$top_area->pack_start(new GtkLabel('Please hold on while processing data...'));
$this->progress_bar = new GtkProgressBar();
$this->progress_bar->set_orientation(Gtk::PROGRESS_LEFT_TO_RIGHT);
$top_area->pack_start($this->progress_bar, 0, 0);
$dialog->set_has_separator(false);
$dialog->show_all(); // show the dialog
$this->dialog = $dialog; // keep a copy of the dialog ID
}
}
?>
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More explanation at:
http://www.kksou.com/php-gtk2/articles/display-progress-bar-while-processing-long-task.php
Regards,
/kksou |
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