/vqdr/trunk

/*

 * The contects of this file is in the Public Domain.

 *

 * Created by Gustav Hartivgsson.

 */

namespace Utils {

  public int str_cmp (string a, string b) {

    return a.collate (b);

  }

  public void print_ln (string str, ...) {

    var va = va_list ();

    var tmp = str + "\n";

    stdout.vprintf (tmp, va);

  }

  public void err_print_ln (string str, ...) {

    var va = va_list ();

    var tmp = str + "\n";

    stderr.vprintf (tmp, va);

  }

  public string object_to_string (GLib.Object obj) {

     StringBuilder strbldr = new StringBuilder ();

     internal_object_to_string (obj, ref strbldr);

     return strbldr.str;

  }

  string collect_string (string[] segments) {

    if (segments.length == 0) {

      return "";

    }

    if (segments.length == 1) {

      return segments[0];

    }

    StringBuilder strbldr = new StringBuilder ();

    foreach (var segment in segments) {

      strbldr.append (segment);

    }

    return strbldr.str;

  }

  private unowned StringBuilder internal_object_to_string (GLib.Object obj,

                                                  ref StringBuilder str_builder,

                                                  int nesting = 0) {

    GLib.ObjectClass obj_class = (GLib.ObjectClass) obj.get_type ().class_ref ();

    for (var i = 0; i < nesting; i++) {

     str_builder.append ("\t");

    }

    str_builder.append ("((")

               .append (obj.get_type().name ())

               .append_printf (")->(%p):\n", obj);

    foreach (GLib.ParamSpec ps in obj_class.list_properties ()) {

      if (ps.value_type == 0 || ps.value_type == GLib.Type.INVALID) {

        continue;

      }

      var prop_name = ps.get_name ();

      Value prop_val = GLib.Value (ps.value_type);

      if (prop_val.type () == GLib.Type.INVALID || prop_val.type () == 0) {

        continue;

      }

      obj.get_property (prop_name, ref prop_val);

      for (var i = 0; i < nesting; i++) {

        str_builder.append ("\t");

      }

      str_builder.append ("\t(")

                 .append (prop_val.type_name ())

                 .append (") ")

                 .append (prop_name)

                 .append (":");

      switch (prop_val.type ()) {

        case (GLib.Type.STRING):

          if (prop_val.dup_string () == null) {

            str_builder.append ("(null)");

          } else {

            str_builder.append (prop_val.dup_string ());

          }

        break;

        case (GLib.Type.INT):

          str_builder.append (prop_val.get_int ().to_string ());

        break;

        case (GLib.Type.BOOLEAN):

          str_builder.append (prop_val.get_boolean ().to_string ());

        break;

        case (GLib.Type.CHAR):

          var v = prop_val.get_schar ();

          str_builder.append_c (v)

                     .append (" (")

                     .append_printf ("%hhx", v);

          str_builder.append (")");

        break;

        case (GLib.Type.DOUBLE):

          str_builder.append (prop_val.get_double ().to_string ());

        break;

        case (GLib.Type.ENUM):

          str_builder.append (prop_val.get_enum ().to_string ());

        break;

        case (GLib.Type.FLAGS):

          // TODO: Probobly needs better handling, but this will do.

          str_builder.append (prop_val.get_flags ().to_string ());

        break;

        case (GLib.Type.FLOAT):

          str_builder.append (prop_val.get_float ().to_string ());

        break;

        case (GLib.Type.INT64):

          str_builder.append (prop_val.get_int64 ().to_string ());

        break;

        case (GLib.Type.LONG):

          str_builder.append (prop_val.get_long ().to_string ());

        break;

        case (GLib.Type.POINTER):

          str_builder.append ("(")

                     .append_printf ("%p", prop_val.get_pointer ());

          str_builder.append (")");

        break;

        case (GLib.Type.BOXED):

          str_builder.append ("(")

                     .append_printf ("%p", prop_val.get_boxed ());

          str_builder.append (")");

        break;

        case (GLib.Type.UCHAR):

          var v = prop_val.get_uchar ();

          str_builder.append_c ((char) v)

                     .append (" (")

                     .append_printf ("%hhx", v);

          str_builder.append (")");

        break;

        case (GLib.Type.UINT):

          str_builder.append (prop_val.get_uint ().to_string ());

        break;

        case (GLib.Type.UINT64):

          str_builder.append (prop_val.get_uint64 ().to_string ());

        break;

        case (GLib.Type.ULONG):

          str_builder.append (prop_val.get_ulong ().to_string ());

        break;

        case (GLib.Type.VARIANT):

          GLib.Variant v = prop_val.dup_variant ();

          GLib.Variant? tv = null;

          unowned string ts1 = v.get_type_string ();

          str_builder.append ("")

                     .append (ts1)

                     .append ("\n\t(\n");

          GLib.VariantIter iter = v.iterator ();

          tv = iter.next_value ();

          while (tv != null) {

            unowned string ts2 = tv.get_type_string ();

            string tp = tv.print (true);

            str_builder.append ("\t\t((")

                       .append (ts2)

                       .append ("): ")

                       .append (tp)

                       .append (")\n");

            tv = iter.next_value ();

          }

        break;

      }

      if (prop_val.type ().is_a (typeof (GLib.Object))) {

        var new_nesting = nesting + 1;

        GLib.Object? dup_obj = prop_val.dup_object ();

        str_builder.append_printf ("->(%p):\n", dup_obj);

        internal_object_to_string (dup_obj, ref str_builder, new_nesting);

      }

      str_builder.append ("\n");

    }

    for (var i = 0; i < nesting; i++) {

      str_builder.append ("\t");

    }

    str_builder.append (")\n");

    return str_builder;

  }

}