/* ChatGPT's XML example
 * Build it with this line:
		gcc main.c `pkg-config gtk+-3.0 --cflags --libs` 
*/
#include <gtk/gtk.h>

static void on_button_clicked(GtkButton *button, gpointer user_data) {
  GtkTextView *textview = GTK_TEXT_VIEW(user_data);
  GtkTextBuffer *buffer = gtk_text_view_get_buffer(textview);
  GtkTextIter start, end;
  gtk_text_buffer_get_start_iter(buffer, &start);
  gtk_text_buffer_get_end_iter(buffer, &end);
  gchar *text = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
  g_print("Text entered:\n%s", text);
  g_free(text);
}

int main(int argc, char *argv[]) {
  GtkBuilder *builder;
  GtkWidget *window, *box, *textview, *button;

  // Initialize GTK
  gtk_init(&argc, &argv);

  // Load the UI from the XML file
  builder = gtk_builder_new_from_file("example.xml");

  // Get pointers to the widgets
  window = GTK_WIDGET(gtk_builder_get_object(builder, "window"));
  box = GTK_WIDGET(gtk_builder_get_object(builder, "box"));
  textview = GTK_WIDGET(gtk_builder_get_object(builder, "textview"));
  button = GTK_WIDGET(gtk_builder_get_object(builder, "button"));
  /* Sounds like you can also do this using CSS */
  GdkRGBA color;
  gdk_rgba_parse(&color, "#BFBFFF"); // Parse the color value from a string
  gtk_widget_override_background_color(textview, GTK_STATE_FLAG_NORMAL, &color);

  // Connect the "clicked" signal of the button to the on_button_clicked() function
  g_signal_connect(button, "clicked", G_CALLBACK(on_button_clicked), textview);

  // Show the window and start the main loop
  gtk_widget_show_all(window);
  gtk_main();

  return 0;
}