#include <gtk/gtk.h>
#include <gdk-pixbuf/gdk-pixbuf.h>

GtkWidget *scrollWindow;
GtkWidget *parenWindow;
GtkWidget *imageWidget;

void redraw_image(GtkWidget *parenWindow, gpointer data){
   GdkPixbuf *imagePixbuf = gdk_pixbuf_new_from_file("albumart.png", NULL);
   imagePixbuf = gdk_pixbuf_scale_simple(imagePixbuf, 400, 400, GDK_INTERP_BILINEAR);
   imageWidget = gtk_image_new_from_pixbuf(imagePixbuf);
   gtk_container_add(GTK_CONTAINER(scrollWindow), imageWidget);
}

void activate (GtkApplication *app, gpointer user_data) {
   parenWindow = gtk_application_window_new(app);
   gtk_window_set_default_size (GTK_WINDOW (parenWindow), 400, 400);

   scrollWindow = gtk_scrolled_window_new(NULL, NULL);
   gtk_container_add (GTK_CONTAINER(parenWindow), scrollWindow);


   gtk_widget_show_all (parenWindow);
   g_signal_connect (parenWindow, "window-state-event", G_CALLBACK(redraw_image), NULL);
}

int main (int argc, char **argv) {
   GtkApplication *app;
   int status;

   app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE);
   g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
   status = g_application_run (G_APPLICATION (app), argc, argv);
   g_object_unref (app);

   return status;
}