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<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" xmlns:xi="http://www.w3.org/2001/XInclude" type="guide" style="task" id="menubutton.c" xml:lang="el">
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<info>
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<title type="text">MenuButton</title>
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<link type="guide" xref="c#buttons"/>
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<revision version="0.1" date="2013-07-01" status="review"/>
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<credit type="author copyright">
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<name>Tiffany Antopolski</name>
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<email its:translate="no">tiffany.antopolski@gmail.com</email>
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<years>2013</years>
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</credit>
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<desc>Ένα γραφικό στοιχείο που εμφανίζει ένα μενού όταν πατηθεί</desc>
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<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
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<mal:name>Ελληνική μεταφραστική ομάδα GNOME</mal:name>
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<mal:email>team@gnome.gr</mal:email>
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<mal:years>2012-2015</mal:years>
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</mal:credit>
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<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
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<mal:name>Δημήτρης Σπίγγος</mal:name>
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<mal:email>dmtrs32@gmail.com</mal:email>
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<mal:years>2012, 2013</mal:years>
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</mal:credit>
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<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
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<mal:name>Μαρία Θουκιδίδου</mal:name>
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<mal:email>marablack3@gmail.com</mal:email>
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<mal:years>2014</mal:years>
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</mal:credit>
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<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
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<mal:name>Θάνος Τρυφωνίδης</mal:name>
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<mal:email>tomtryf@gmail.com</mal:email>
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<mal:years>2014, 2015</mal:years>
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</mal:credit>
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</info>
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<title>MenuButton</title>
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<media type="image" mime="image/png" src="media/menubutton.png"/>
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Το γραφικό στοιχείο GtkMenuButton χρησιμοποιείται για την εμφάνιση ενός μενού όταν πατιέται. Αυτό το μενού μπορεί να δοθεί είτε ως GtkMenu, ή ως ένα αποσπασμένο GMenuModel. Το γραφικό στοιχείο GtkMenuButton μπορεί να κρατήσει οποιοδήποτε θυγατρικό γραφικό στοιχείο. Δηλαδή, μπορεί να κρατήσει σχεδόν κάθε άλλο τυπικό GtkWidget. Το πιο συχνά χρησιμοποιούμενο θυγατρικό είναι το παρεχόμενο GtkArrow.
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<note>Χρειάζεται να τρέξετε το GNOME 3.6 ή μεταγενέστερο για να δουλέψει το MenuButton. </note>
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<links type="section"/>
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<section id="code">
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<title>Ο χρησιμοποιούμενος κώδικας για παραγωγή αυτού παραδείγματος</title>
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#include <gtk/gtk.h>
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/* Callback function for the undo action */
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static void
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about_callback (GSimpleAction *simple,
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GVariant *parameter,
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gpointer user_data)
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{
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g_print ("You clicked \"About\"\n");
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}
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static void
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activate (GtkApplication *app,
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gpointer user_data)
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{
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GMenu *submenu;
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GtkWidget *grid;
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GMenu *menumodel;
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GtkWidget *window;
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GtkWidget *menubutton;
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GSimpleAction *about_action;
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window = gtk_application_window_new (app);
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grid = gtk_grid_new ();
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gtk_window_set_title (GTK_WINDOW (window), "MenuButton Example");
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gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);
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menubutton = gtk_menu_button_new ();
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gtk_widget_set_size_request (menubutton, 80, 35);
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gtk_grid_attach (GTK_GRID (grid), menubutton, 0, 0, 1, 1);
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gtk_container_add (GTK_CONTAINER (window), grid);
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menumodel = g_menu_new ();
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g_menu_append (menumodel, "New", "app.new");
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g_menu_append (menumodel, "About", "win.about");
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submenu = g_menu_new ();
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g_menu_append_submenu (menumodel, "Other", G_MENU_MODEL (submenu));
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g_menu_append (submenu, "Quit", "app.quit");
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gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (menubutton), G_MENU_MODEL (menumodel));
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about_action = g_simple_action_new ("about", NULL);
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g_signal_connect (about_action, "activate", G_CALLBACK (about_callback),
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GTK_WINDOW (window));
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g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (about_action));
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gtk_widget_show_all (window);
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}
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static void
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new_callback (GSimpleAction *simple,
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GVariant *parameter,
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gpointer user_data)
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{
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g_print ("You clicked \"New\"\n");
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}
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static void
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quit_callback (GSimpleAction *simple,
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GVariant *parameter,
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gpointer user_data)
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{
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GApplication *application = user_data;
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g_application_quit (application);
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}
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static void
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startup (GApplication *app,
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gpointer user_data)
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{
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GSimpleAction *new_action;
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GSimpleAction *quit_action;
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new_action = g_simple_action_new ("new", NULL);
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g_signal_connect (new_action, "activate", G_CALLBACK (new_callback), app);
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g_action_map_add_action (G_ACTION_MAP (app), G_ACTION (new_action));
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quit_action = g_simple_action_new ("quit", NULL);
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g_signal_connect (quit_action, "activate", G_CALLBACK (quit_callback), app);
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g_action_map_add_action (G_ACTION_MAP (app), G_ACTION (quit_action));
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}
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int
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main (int argc, char **argv)
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{
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GtkApplication *app;
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int status;
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app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE);
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g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
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g_signal_connect (app, "startup", G_CALLBACK (startup), NULL);
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status = g_application_run (G_APPLICATION (app), argc, argv);
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g_object_unref (app);
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return status;
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}
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</section>
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<section id="references">
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<title>Αναφορές API</title>
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Σε αυτό το παράδειγμα χρησιμοποιήσαμε τα παρακάτω:
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<list>
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<item><link href="http://developer.gnome.org/gtk3/unstable/GtkMenuButton.html">GtkMenuButton</link> </item>
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<item><link href="http://developer.gnome.org/gtk3/unstable/GtkMenu.html">GtkMenu</link> </item>
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<item><link href="https://developer.gnome.org/gio/unstable/GMenuModel.html">GMenuModel</link> </item>
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<item><link href="http://developer.gnome.org/gtk3/unstable/GtkArrow.html">GtkArrow</link> </item>
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</list>
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</section>
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</page>
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