Gtk2::Dialog man page on OpenSuSE

Man page or keyword search:  
man Server   25941 pages
apropos Keyword Search (all sections)
Output format
OpenSuSE logo
[printable version]

Gtk2::Dialog(3)	      User Contributed Perl Documentation      Gtk2::Dialog(3)

NAME
       Gtk2::Dialog

SYNOPSIS
	 # create a new dialog with some buttons - one stock, one not.
	 $dialog = Gtk2::Dialog->new ($title, $parent_window, $flags,
				      'gtk-cancel' => 'cancel',
				      'Do it'	   => 'ok');
	 # create window contents for yourself.
	 $dialog->get_content_area ()->add ($some_widget);

	 $dialog->set_default_response ('ok');

	 # show and interact modally -- blocks until the user
	 # activates a response.
	 $response = $dialog->run;
	 if ($response eq 'ok') {
	     do_the_stuff ();
	 }

	 # activating a response does not destroy the window,
	 # that's up to you.
	 $dialog->destroy;

DESCRIPTION
       Dialog boxes are a convenient way to prompt the user for a small amount
       of input, eg. to display a message, ask a question, or anything else
       that does not require extensive effort on the user's part.

       GTK+ treats a dialog as a window split vertically. The top section is a
       Gtk2::VBox, and is where widgets such as a Gtk2::Label or a Gtk2::Entry
       should be packed. The bottom area is known as the "action_area". This
       is generally used for packing buttons into the dialog which may perform
       functions such as cancel, ok, or apply.	The two areas are separated by
       a Gtk2::HSeparator.

       GtkDialog boxes are created with a call to "Gtk2::Dialog->new".	The
       multi-argument form (and its alias, "new_with_buttons" is recommended;
       it allows you to set the dialog title, some convenient flags, and add
       simple buttons all in one go.

       If $dialog is a newly created dialog, the two primary areas of the
       window can be accessed as "$dialog->get_content_area ()" and
       "$dialog->get_action_area ()", as can be seen from the example, below.

       A 'modal' dialog (that is, one which freezes the rest of the
       application from user input), can be created by calling the
       Gtk2::Window method "set_modal" on the dialog.  You can also pass the
       'modal' flag to "new".

       If you add buttons to GtkDialog using "new", "new_with_buttons",
       "add_button", "add_buttons", or "add_action_widget", clicking the
       button will emit a signal called "response" with a response ID that you
       specified.  GTK+ will never assign a meaning to positive response IDs;
       these are entirely user-defined.	 But for convenience, you can use the
       response IDs in the Gtk2::ResponseType enumeration.  If a dialog
       receives a delete event, the "response" signal will be emitted with a
       response ID of 'delete-event'.

       If you want to block waiting for a dialog to return before returning
       control flow to your code, you can call "$dialog->run".	This function
       enters a recursive main loop and waits for the user to respond to the
       dialog, returning the  response ID corresponding to the button the user
       clicked.

       For the simple dialog in the following example, in reality you'd
       probably use Gtk2::MessageDialog to save yourself some effort.  But
       you'd need to create the dialog contents manually if you had more than
       a simple message in the dialog.

	# Function to open a dialog box displaying the message provided.

	sub quick_message {
	   my $message = shift;
	   my $dialog = Gtk2::Dialog->new ('Message', $main_app_window,
					   'destroy-with-parent',
					   'gtk-ok' => 'none');
	   my $label = Gtk2::Label->new (message);
	   $dialog->get_content_area ()->add ($label);

	   # Ensure that the dialog box is destroyed when the user responds.
	   $dialog->signal_connect (response => sub { $_[0]->destroy });

	   $dialog->show_all;
	}

   Delete, Close and Destroy
       In the default keybindings the "Esc" key calls the "close" action
       signal.	The default in that signal is to synthesise a "delete-event"
       like a window manager close would do.

       A delete-event first runs the "response" signal with ID "delete-event",
       but the handler there can't influence the default destroy behaviour of
       the "delete-event" signal.  See Gtk2::Window for notes on destroy vs
       hide.

       If you add your own "Close" button to the dialog, perhaps using the
       builtin "close" response ID, you must make your "response" signal
       handler do whatever's needed for closing.  Often a good thing is just
       to run the "close" action signal the same as the Esc key.

	   sub my_response_handler {
	     my ($dialog, $response) = @_;
	     if ($response eq 'close') {
	       $self->signal_emit ('close');

	     } elsif ...
	   }

HIERARCHY
	 Glib::Object
	 +----Glib::InitiallyUnowned
	      +----Gtk2::Object
		   +----Gtk2::Widget
			+----Gtk2::Container
			     +----Gtk2::Bin
				  +----Gtk2::Window
				       +----Gtk2::Dialog

INTERFACES
	 Glib::Object::_Unregistered::AtkImplementorIface
	 Gtk2::Buildable

METHODS
   $widget = Gtk2::Dialog->new;
   $widget = Gtk2::Dialog->new ($title, $parent, $flags, ...)
       ·   ... (list) of button-text => response-id pairs.

       ·   $flags (Gtk2::DialogFlags) interesting properties

       ·   $parent (Gtk2::Window or undef) make the new dialog transient for
	   this window

       ·   $title (string) window title

       The multi-argument form takes the same list of text => response-id
       pairs as "$dialog->add_buttons".	 Do not pack widgets directly into the
       window; add them to "$dialog->get_content_area ()".

       Here's a simple example:

	$dialog = Gtk2::Dialog->new ('A cool dialog',
				     $main_app_window,
				     [qw/modal destroy-with-parent/],
				     'gtk-ok'	  => 'accept',
				     'gtk-cancel' => 'reject');

   $widget = Gtk2::Dialog->new_with_buttons ($title, $parent, $flags, ...)
       ·   ... (list) of button-text => response-id pairs.

       Alias for the multi-argument version of "Gtk2::Dialog->new".

   widget = $dialog->get_action_area
   $dialog->add_action_widget ($child, $response_id)
       ·   $child (Gtk2::Widget)

       ·   $response_id (Gtk2::ResponseType)

   widget = $dialog->add_button ($button_text, $response_id)
       ·   $button_text (string) may be arbitrary text with mnenonics, or
	   stock ids

       ·   $response_id (Gtk2::ResponseType)

       Returns the created button.

   $dialog->add_buttons (...)
       ·   ... (list) of button-text => response-id pairs

       Like calling "$dialog->add_button" repeatedly, except you don't get the
       created widgets back.  The buttons go from left to right, so the first
       button added will be the left-most one.

   $dialog->set_alternative_button_order (...)
       ·   ... (list)

       Since: gtk+ 2.6

   widget = $dialog->get_content_area
   $dialog->set_default_response ($response_id)
       ·   $response_id (Gtk2::ResponseType)

   boolean = $dialog->get_has_separator
   $dialog->set_has_separator ($setting)
       ·   $setting (boolean)

   $dialog->response ($response_id)
       ·   $response_id (Gtk2::ResponseType)

       Emit the response signal, as though the user had clicked on the button
       with $response_id.

   scalar = $dialog->get_response_for_widget ($widget)
       ·   $widget (Gtk2::Widget)

       Since: gtk+ 2.8

   $dialog->set_response_sensitive ($response_id, $setting)
       ·   $response_id (Gtk2::ResponseType)

       ·   $setting (boolean)

       Enable or disable an action button by its $response_id.

   $responsetype = $dialog->run
       Blocks in a recursive main loop until the dialog either emits the
       response signal, or is destroyed.  If the dialog is destroyed during
       the call to "$dialog->run", the function returns 'GTK_RESPONSE_NONE'
       ('none').  Otherwise, it returns the response ID from the "response"
       signal emission.	 Before entering the recursive main loop,
       "$dialog->run" calls "$widget->show" on $dialog for you. Note that you
       still need to show any children of the dialog yourself.

       During "run", the default behavior of "delete_event" is disabled; if
       the dialog receives "delete_event", it will not be destroyed as windows
       usually are, and "run" will return 'delete-event'.  Also, during "run"
       the dialog will be modal.  You can force "run" to return at any time by
       calling "$dialog->response" to emit the "response" signal.  Destroying
       the dialog during "run" is a very bad idea, because your post-run code
       won't know whether the dialog was destroyed or not.

       After "run" returns, you are responsible for hiding or destroying the
       dialog if you wish to do so.

       Typical usage of this function might be:

	 if ('accept' eq $dialog->run) {
		do_application_specific_something ();
	 } else {
		do_nothing_since_dialog_was_cancelled ();
	 }
	 $dialog->destroy;

   widget = $dialog->get_widget_for_response ($response_id)
       ·   $response_id (Gtk2::ResponseType)

       Since: gtk+ 2.20

PROPERTIES
       'has-separator' (boolean : default false : readable / writable /
       private)
	   The dialog has a separator bar above its buttons

STYLE PROPERTIES
       'action-area-border' (integer : default 5 : readable / private)
	   Width of border around the button area at the bottom of the dialog

       'button-spacing' (integer : default 6 : readable / private)
	   Spacing between buttons

       'content-area-border' (integer : default 2 : readable / private)
	   Width of border around the main dialog area

       'content-area-spacing' (integer : default 0 : readable / private)
	   Spacing between elements of the main dialog area

SIGNALS
       response (Gtk2::Dialog, integer)
       close (Gtk2::Dialog)

       Note that currently in a Perl subclass of "Gtk2::Dialog" a class
       closure, ie. class default signal handler, for the "response" signal
       will be called with the response ID just as an integer, it's not turned
       into an enum string like "ok" the way a handler setup with
       "signal_connect" receives.

       Hopefully this will change in the future, so don't count on it.	In the
       interim the easiest thing to do is install your default handler in
       "INIT_INSTANCE" with a "signal_connect".	 (The subtleties of what order
       handlers are called in will differ, but often that doesn't matter.)

ENUMS AND FLAGS
   flags Gtk2::DialogFlags
       ·   'modal' / 'GTK_DIALOG_MODAL'

       ·   'destroy-with-parent' / 'GTK_DIALOG_DESTROY_WITH_PARENT'

       ·   'no-separator' / 'GTK_DIALOG_NO_SEPARATOR'

   enum Gtk2::ResponseType
       The response type is somewhat abnormal as far as gtk2-perl enums go.
       In C, this enum lists named, predefined integer values for a field that
       is other composed of whatever integer values you like.  In Perl, we
       allow this to be either one of the string constants listed here or any
       positive integer value.	For example, 'ok', 'cancel', 4, and 42 are all
       valid response ids.  You cannot use arbitrary string values, they must
       be integers.  Be careful, because unknown string values tend to be
       mapped to 0.

       ·   'none' / 'GTK_RESPONSE_NONE'

       ·   'reject' / 'GTK_RESPONSE_REJECT'

       ·   'accept' / 'GTK_RESPONSE_ACCEPT'

       ·   'delete-event' / 'GTK_RESPONSE_DELETE_EVENT'

       ·   'ok' / 'GTK_RESPONSE_OK'

       ·   'cancel' / 'GTK_RESPONSE_CANCEL'

       ·   'close' / 'GTK_RESPONSE_CLOSE'

       ·   'yes' / 'GTK_RESPONSE_YES'

       ·   'no' / 'GTK_RESPONSE_NO'

       ·   'apply' / 'GTK_RESPONSE_APPLY'

       ·   'help' / 'GTK_RESPONSE_HELP'

SEE ALSO
       Gtk2, Glib::Object, Glib::InitiallyUnowned, Gtk2::Object, Gtk2::Widget,
       Gtk2::Container, Gtk2::Bin, Gtk2::Window

COPYRIGHT
       Copyright (C) 2003-2011 by the gtk2-perl team.

       This software is licensed under the LGPL.  See Gtk2 for a full notice.

perl v5.18.1			  2013-09-28		       Gtk2::Dialog(3)
[top]

List of man pages available for OpenSuSE

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net