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kylemhall
Joined: 21 Nov 2007
Posts: 1
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 Posted: Wed Nov 21, 2007 10:11 pm Post subject: Crazy PHP-GTK2 Problem - Am I Losing My Mind? |
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Here's the deal, I'm beginning to write an internet cafe type program in PHP-GTK2.
I've created a LoginWindow class that extends GtkWindow. It's has username and password entry fields, and a login button. All of them are public.
I then wrote a main app to use this LoginWindow like so:
| Code: |
<?php
require_once('LoginWindow.php');
$loginWindow = new LoginWindow();
$loginWindow->loginButton->connect( 'clicked', 'performLogin', $loginWindow );
$loginWindow->show_all();
Gtk::main();
function performLogin( $loginWindow ){
$loginWindow->hide_all();
}
function quitNow() {
exit();
}
?>
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When I click the loginButton, which executes the performLogin callback, the *loginButton* dissapears, instead of the entire window. I checked, and indeed, inside performLogin(), $loginWindow refers to loginButton, *not* loginWindow. What's going on?
The only way I can make it work is to make $loginWindow a global, and take it out of the callback parameters. A horrible solution. Can anyone help me out?
Here's the code for the LoginWindow class:
| Code: |
<?php
class LoginWindow extends GtkWindow {
public $usernameEntry;
public $passwordEntry;
public $loginButton;
public $quitButton;
public function __construct() {
parent::__construct();
$screen = GdkScreen::get_default();
$screenWidth = $screen->get_width();
$screenHeight = $screen->get_height();
$this->set_decorated( 0 );
$this->set_default_size( $screenWidth, $screenHeight );
$this->fullscreen();
$this->set_keep_above( 1 );
$loginBox = new GtkVBox();
$usernameBox = new GtkHBox();
$passwordBox = new GtkHBox();
$usernameLabel = new GtkLabel("Username:");
$this->usernameEntry = new GtkEntry();
$passwordLabel = new GtkLabel("Password:");
$this->passwordEntry = new GtkEntry();
$this->loginButton = new GtkButton("Log In");
$usernameBox->pack_start( $usernameLabel );
$usernameBox->pack_start( $this->usernameEntry );
$passwordBox->pack_start( $passwordLabel );
$passwordBox->pack_start( $this->passwordEntry );
$loginBox->pack_start( $usernameBox );
$loginBox->pack_start( $passwordBox );
$loginBox->pack_start( $this->loginButton );
if ( DEBUG ) {
$this->quitButton = new GtkButton("Quit");
# $quitButton->connect( 'clicked', 'LoginWindow::quitButtonPressed' );
$loginBox->pack_start( $this->quitButton );
}
$this->connect_simple( 'destroy', array('Gtk', 'main_quit') );
$centerHBox = new GtkHBox();
$centerVBox = new GtkVBox();
$leftBox = new GtkHBox();
$rightBox = new GtkHBox();
$topBox = new GtkHBox();
$bottomBox = new GtkHBox();
$centerHBox->pack_start( $leftBox, true );
$centerHBox->pack_start( $loginBox, false );
$centerHBox->pack_start( $rightBox, true );
$centerVBox->pack_start( $topBox, true );
$centerVBox->pack_start( $centerHBox, false );
$centerVBox->pack_start( $bottomBox, true );
$this->add( $centerVBox );
}
public function hideLogin() {
$this->hide_all();
}
}
?>
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And the *full* code of kioskClient, just in case:
| Code: |
<?php
global $_CONSTANTS;
$_CONSTANTS['DEBUG'] = true;
require_once('LoginWindow.php');
$loginWindow = new LoginWindow();
$loginWindow->loginButton->connect( 'clicked', 'performLogin', $loginWindow );
$loginWindow->quitButton->connect( 'clicked', 'quitNow' );
$loginWindow->show_all();
# $gdkWindow = $loginWindow->get_parent_window();
# $gdkWindow->set_override_redirect( 1 ); ## Doesn't work.
Gtk::main();
function performLogin( $loginWindow ){
$loginWindow->hide_all();
}
function quitNow() {
exit();
}
?>
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kksou
Joined: 06 Sep 2006
Posts: 25
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| Posted: Thu Nov 22, 2007 7:44 am Post subject: |
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Your code is running perfectly ok, except one part.
Just change your login button's signal handler to:
| Code: | function performLogin( $button, $loginWindow ){
$loginWindow->hide_all();
}
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It should now work just as you've intended...
Regards,
/kksou
p.s. For the signal button 'clicked', PHP-GTK2 always passes along with it the pointer to the button as the first argument. That's why your button keeps disappearing instead of the window. |
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