/* Assistant * * Demonstrates a sample multi-step assistant with GtkAssistant. Assistants * are used to divide an operation into several simpler sequential steps, * and to guide the user through these steps. */ #include static GtkWidget *progress_bar = NULL; static gboolean apply_changes_gradually (gpointer data) { double fraction; /* Work, work, work... */ fraction = gtk_progress_bar_get_fraction (GTK_PROGRESS_BAR (progress_bar)); fraction += 0.05; if (fraction < 1.0) { gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (progress_bar), fraction); return G_SOURCE_CONTINUE; } else { /* Close automatically once changes are fully applied. */ gtk_window_destroy (GTK_WINDOW (data)); return G_SOURCE_REMOVE; } } static void on_assistant_apply (GtkWidget *widget, gpointer data) { /* Start a timer to simulate changes taking a few seconds to apply. */ g_timeout_add (100, apply_changes_gradually, widget); } static void on_assistant_close_cancel (GtkWidget *widget, gpointer data) { gtk_window_destroy (GTK_WINDOW (widget)); } static void on_assistant_prepare (GtkWidget *widget, GtkWidget *page, gpointer data) { int current_page, n_pages; char *title; current_page = gtk_assistant_get_current_page (GTK_ASSISTANT (widget)); n_pages = gtk_assistant_get_n_pages (GTK_ASSISTANT (widget)); title = g_strdup_printf ("Sample assistant (%d of %d)", current_page + 1, n_pages); gtk_window_set_title (GTK_WINDOW (widget), title); g_free (title); /* The fourth page (counting from zero) is the progress page. The * user clicked Apply to get here so we tell the assistant to commit, * which means the changes up to this point are permanent and cannot * be cancelled or revisited. */ if (current_page == 3) gtk_assistant_commit (GTK_ASSISTANT (widget)); } static void on_entry_changed (GtkWidget *widget, gpointer data) { GtkAssistant *assistant = GTK_ASSISTANT (data); GtkWidget *current_page; int page_number; const char *text; page_number = gtk_assistant_get_current_page (assistant); current_page = gtk_assistant_get_nth_page (assistant, page_number); text = gtk_editable_get_text (GTK_EDITABLE (widget)); if (text && *text) gtk_assistant_set_page_complete (assistant, current_page, TRUE); else gtk_assistant_set_page_complete (assistant, current_page, FALSE); } static void create_page1 (GtkWidget *assistant) { GtkWidget *box, *label, *entry; box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12); gtk_widget_set_margin_start (box, 12); gtk_widget_set_margin_end (box, 12); gtk_widget_set_margin_top (box, 12); gtk_widget_set_margin_bottom (box, 12); label = gtk_label_new ("You must fill out this entry to continue:"); gtk_box_append (GTK_BOX (box), label); entry = gtk_entry_new (); gtk_accessible_update_relation (GTK_ACCESSIBLE (entry), GTK_ACCESSIBLE_RELATION_LABELLED_BY, label, NULL, -1); gtk_entry_set_activates_default (GTK_ENTRY (entry), TRUE); gtk_widget_set_valign (entry, GTK_ALIGN_CENTER); gtk_box_append (GTK_BOX (box), entry); g_signal_connect (G_OBJECT (entry), "changed", G_CALLBACK (on_entry_changed), assistant); gtk_assistant_append_page (GTK_ASSISTANT (assistant), box); gtk_assistant_set_page_title (GTK_ASSISTANT (assistant), box, "Page 1"); gtk_assistant_set_page_type (GTK_ASSISTANT (assistant), box, GTK_ASSISTANT_PAGE_INTRO); } static void create_page2 (GtkWidget *assistant) { GtkWidget *box, *checkbutton; box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12); gtk_widget_set_margin_start (box, 12); gtk_widget_set_margin_end (box, 12); gtk_widget_set_margin_top (box, 12); gtk_widget_set_margin_bottom (box, 12); checkbutton = gtk_check_button_new_with_label ("This is optional data, you may continue " "even if you do not check this"); gtk_widget_set_valign (checkbutton, GTK_ALIGN_CENTER); gtk_box_append (GTK_BOX (box), checkbutton); gtk_assistant_append_page (GTK_ASSISTANT (assistant), box); gtk_assistant_set_page_complete (GTK_ASSISTANT (assistant), box, TRUE); gtk_assistant_set_page_title (GTK_ASSISTANT (assistant), box, "Page 2"); } static void create_page3 (GtkWidget *assistant) { GtkWidget *label; label = gtk_label_new ("This is a confirmation page, press 'Apply' to apply changes"); gtk_widget_show (label); gtk_assistant_append_page (GTK_ASSISTANT (assistant), label); gtk_assistant_set_page_type (GTK_ASSISTANT (assistant), label, GTK_ASSISTANT_PAGE_CONFIRM); gtk_assistant_set_page_complete (GTK_ASSISTANT (assistant), label, TRUE); gtk_assistant_set_page_title (GTK_ASSISTANT (assistant), label, "Confirmation"); } static void create_page4 (GtkWidget *assistant) { progress_bar = gtk_progress_bar_new (); gtk_widget_set_halign (progress_bar, GTK_ALIGN_FILL); gtk_widget_set_valign (progress_bar, GTK_ALIGN_CENTER); gtk_widget_set_hexpand (progress_bar, TRUE); gtk_widget_set_margin_start (progress_bar, 40); gtk_widget_set_margin_end (progress_bar, 40); gtk_widget_show (progress_bar); gtk_assistant_append_page (GTK_ASSISTANT (assistant), progress_bar); gtk_assistant_set_page_type (GTK_ASSISTANT (assistant), progress_bar, GTK_ASSISTANT_PAGE_PROGRESS); gtk_assistant_set_page_title (GTK_ASSISTANT (assistant), progress_bar, "Applying changes"); /* This prevents the assistant window from being * closed while we're "busy" applying changes. */ gtk_assistant_set_page_complete (GTK_ASSISTANT (assistant), progress_bar, FALSE); } GtkWidget* do_assistant (GtkWidget *do_widget) { static GtkWidget *assistant; if (!assistant) { assistant = gtk_assistant_new (); gtk_window_set_default_size (GTK_WINDOW (assistant), -1, 300); gtk_window_set_display (GTK_WINDOW (assistant), gtk_widget_get_display (do_widget)); g_object_add_weak_pointer (G_OBJECT (assistant), (gpointer *)&assistant); create_page1 (assistant); create_page2 (assistant); create_page3 (assistant); create_page4 (assistant); g_signal_connect (G_OBJECT (assistant), "cancel", G_CALLBACK (on_assistant_close_cancel), NULL); g_signal_connect (G_OBJECT (assistant), "close", G_CALLBACK (on_assistant_close_cancel), NULL); g_signal_connect (G_OBJECT (assistant), "apply", G_CALLBACK (on_assistant_apply), NULL); g_signal_connect (G_OBJECT (assistant), "prepare", G_CALLBACK (on_assistant_prepare), NULL); } if (!gtk_widget_get_visible (assistant)) gtk_widget_show (assistant); else gtk_window_destroy (GTK_WINDOW (assistant)); return assistant; }