/**
 * bookmarks.cpp
 *
 * Implementation of scorebookmarks
 * for Denemo, a gtk+ frontend to GNU Lilypond
 * (c) 2005 Adam Tee
 */

#include "bookmarks.h"
#include "moveviewport.h"
#include "utils.h"


/**
 *  Find the specified bookmark and go to it.
 * 
 * @param gui pointer to the DenemoGUI structure
 * @param bmbar the bookmarks measure
 * @param bmstaff the bookmarks staff
 */
static void
findbookmark (DenemoGUI * gui, gint bmbar, gint bmstaff)
{
  g_assert (gui != NULL);
  set_currentmeasurenum (gui, bmbar);
  set_currentstaffnum (gui, bmstaff);
  //FIXME make these return success or failure & inform of deleted bookmark positions
}

/**
 *  Callback to add a new book mark to the list
 *  
 *  Uses the current measure and staff
 */
void
addbookmark (GtkAction * action, gpointer param)
{
  DenemoGUI *gui = Denemo.gui;
  g_assert (gui != NULL);
  DenemoScore *si = gui->si;
  Bookmark *bm = (Bookmark *) g_malloc0 (sizeof (Bookmark));
  bm->bar = si->currentmeasurenum;
  bm->staff = si->currentstaffnum;
  if (si->bookmarks)
    bm->id = g_list_length (si->bookmarks);

  si->bookmarks = g_list_append (si->bookmarks, bm);

  //g_print ("Bar %d, Staff %d, \n", bm->bar, bm->staff);
}


void
deletebookmarks (GtkAction * action, gpointer param)
{
  DenemoGUI *gui = Denemo.gui;
  GList *g;
  DenemoScore *si = gui->si;
  for (g = si->bookmarks; g; g = g->next)
    {
      g_free (g->data);
    }
  si->bookmarks = NULL;
}

void
nextbookmark (GtkAction * action, gpointer param)
{
  DenemoGUI *gui = Denemo.gui;
  if (gui->si->bookmarks)
    {
      GList *g = g_list_nth (gui->si->bookmarks, gui->si->currentbookmark + 1);
      if (g == NULL)
        {
          gdk_beep ();          //wrap around
          g = gui->si->bookmarks;
          gui->si->currentbookmark = -1;
        }
      Bookmark *bm = g->data;
      findbookmark (gui, bm->bar, bm->staff);
      gui->si->currentbookmark++;
    }
}

void
prevbookmark (GtkAction * action, gpointer param)
{
  DenemoGUI *gui = Denemo.gui;
  if (gui->si->bookmarks)
    {
      GList *g = g_list_nth (gui->si->bookmarks, gui->si->currentbookmark - 1);
      if (g == NULL)
        {
          gdk_beep ();          //wrap around
          g = g_list_last (gui->si->bookmarks);
          gui->si->currentbookmark = g_list_length (gui->si->bookmarks) + 1;
        }
      Bookmark *bm = g->data;
      findbookmark (gui, bm->bar, bm->staff);
      gui->si->currentbookmark--;
    }
}

/**
 * Dialog to go to a specific bookmark
 *
 */
void
gotobookmark (GtkAction * action, gpointer param)
{
  DenemoGUI *gui = Denemo.gui;
  g_assert (gui != NULL);
  if (gui->si->bookmarks == NULL)
    {
      warningdialog ("No bookmarks are present in this movement");
      return;
    }
  GtkWidget *dialog;
  GtkWidget *combobox;
  dialog = gtk_dialog_new_with_buttons (_("Goto Bookmark"), GTK_WINDOW (Denemo.window), (GtkDialogFlags) (GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT), GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL);

  //g_print ("List length %d\n", g_list_length (gui->si->bookmarks));
#define FORMAT "%d : Staff %d : Bar %d"
#if GTK_MAJOR_VERSION==3
  GList* tmp;
  combobox = gtk_combo_box_text_new ();
  for (tmp = gui->si->bookmarks; tmp; tmp = tmp->next)
    {
      Bookmark *bm = (Bookmark *) tmp->data;
      char *tmpstring = g_strdup_printf (FORMAT,        //FIXME insane use of sscanf see below
                                         bm->id, bm->staff, bm->bar);
      gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combobox), tmpstring);
#else
	GList* tmp;
  GList *strings = NULL;
  combobox = gtk_combo_new ();
  for (tmp = gui->si->bookmarks; tmp; tmp = tmp->next)
    {
      Bookmark *bm = (Bookmark *) tmp->data;
      char *tmpstring = g_strdup_printf (FORMAT,        //FIXME insane use of sscanf see below
                                         bm->id, bm->staff, bm->bar);

      strings = g_list_append (strings, tmpstring);
      gtk_combo_set_popdown_strings (GTK_COMBO (combobox), strings);
      gchar *text = g_strdup ((gchar *) g_list_nth_data (strings, 0));
      gtk_entry_set_text (GTK_ENTRY (GTK_COMBO (combobox)), text);
      g_free (text);

#endif
    }


  GtkWidget *content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
  GtkWidget *vbox = gtk_vbox_new (FALSE, 1);
  gtk_container_add (GTK_CONTAINER (content_area), vbox);
  gtk_container_add (GTK_CONTAINER (vbox), combobox);
  gtk_window_set_position (GTK_WINDOW (dialog), GTK_WIN_POS_MOUSE);
  gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
  gtk_widget_show_all (dialog);

  if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
    {
      gint bmid, bms, bmb;
#if GTK_MAJOR_VERSION==3
      gchar *tmp = (gchar *) gtk_combo_box_text_get_active_text (GTK_COMBO_BOX_TEXT (combobox));
#else
      gchar *tmp = (gchar *) gtk_entry_get_text (GTK_ENTRY (GTK_COMBO (combobox)->entry));
#endif
      sscanf (tmp, FORMAT, &bmid, &bms, &bmb);
      findbookmark (gui, bmb, bms);

    }
  gtk_widget_destroy (dialog);
}
