Hello,
I just started developing GTK+ Applications.
But now I get the following error message and a broken Text when clicking back
in to the GTKEntry widget:
(gtk-keygen:18220): Pango-CRITICAL **: pango_layout_get_cursor_pos: assertion
'index >= 0 && index <= layout->length' failed
Here is the code causing this Problem:
static void activate (GtkApplication *app, gpointer user_data)
{
GtkWidget *window;
GtkWidget *grid;
GtkWidget *label_exp_date;
GtkWidget *input_exp_date;
GtkWidget *spacer;
GtkWidget *out_head;
GtkWidget *out_gen;
GtkWidget *gen_button;
/* Create window */
window = gtk_application_window_new (app);
gtk_window_set_title (GTK_WINDOW (window), PACKAGE_STRING);
gtk_container_set_border_width (GTK_CONTAINER (window), 10);
/* Here we construct the container that is going pack our content */
grid = gtk_grid_new ();
gtk_grid_set_column_spacing (GTK_GRID (grid), 5);
gtk_grid_set_row_spacing (GTK_GRID (grid), 5);
/* Pack the container in the window */
gtk_container_add (GTK_CONTAINER (window), grid);
/* Create head label */
label_exp_date = gtk_label_new ("Key generator for garmin-srv.");
gtk_grid_attach (GTK_GRID (grid), label_exp_date, 0, 0, 3, 1);
/* Spacer */
spacer = gtk_label_new ("");
gtk_grid_attach (GTK_GRID (grid), spacer, 0, 1, 1, 1);
/* Key generator area */
label_exp_date = gtk_label_new ("Enter expiration date (dd.mm.YYYY):");
gtk_grid_attach (GTK_GRID (grid), label_exp_date, 0, 1, 1, 1);
input_exp_date = gtk_entry_new ();
gtk_entry_set_width_chars (GTK_ENTRY (input_exp_date), 10);
gtk_entry_set_max_length (GTK_ENTRY (input_exp_date), 10);
gtk_grid_attach (GTK_GRID (grid), input_exp_date, 1, 1, 1, 1);
gen_button = gtk_button_new_with_label ("Generate");
gtk_widget_set_halign (GTK_WIDGET (gen_button), GTK_ALIGN_END);
gtk_grid_attach (GTK_GRID (grid), gen_button, 2, 1, 1, 1);
/* Result area */
out_head = gtk_label_new ("Generated key:");
gtk_grid_attach (GTK_GRID (grid), out_head, 0, 2, 1, 1);
GtkEntryBuffer *keybuf;
keybuf = gtk_entry_buffer_new ("Not yet generated", 45);
out_gen = gtk_entry_new_with_buffer (GTK_ENTRY_BUFFER (keybuf));
gtk_entry_set_width_chars (GTK_ENTRY (out_gen), 50);
gtk_editable_set_editable (GTK_EDITABLE (out_gen), FALSE);
gtk_widget_set_can_focus (GTK_WIDGET (out_gen), FALSE);
gtk_grid_attach (GTK_GRID (grid), out_gen, 1, 2, 1, 1);
g_object_set_data (G_OBJECT(gen_button), "input", input_exp_date);
g_object_set_data (G_OBJECT(gen_button), "output", out_gen);
/* Exit when the window is closed */
g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
g_signal_connect (gen_button, "clicked", G_CALLBACK (gtkGenKey),
gen_button);
// g_signal_connect (gen_button, "clicked", G_CALLBACK (showKey),
keybuf);
gtk_widget_show_all (window);
}
Can somebody help me and tell me what I am doing wrong?
Best Regards,
Dirk
--
Dirk Gottschalk, Aachen
Tel.: 01573 / 1152350
eMail: dirk.gottschalk1...@googlemail.com
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