uif_sfgen.c

A GTK sound font editor. Sound font files are used to synthesize instruments from audio samples for

  gtk_notebook_append_page (GTK_NOTEBOOK (notebook), box, label);


  /* create vbox for second page */
  box = gtk_vbox_new (FALSE, 0);
  gtk_widget_show (box);

  /* Vol Envelope frame */
  frame = gtk_frame_new (_("Volume Envelope"));
  gtk_widget_show (frame);
  gtk_box_pack_start (GTK_BOX (box), frame, TRUE, TRUE, 2);
  box1 = gtk_vbox_new (TRUE, 0);
  gtk_widget_show (box1);
  gtk_container_add (GTK_CONTAINER (frame), box1);

  box2 = gtk_hbox_new (TRUE, 0);
  gtk_widget_show (box2);
  gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_VolEnvDelay);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_VolEnvAttack);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_VolEnvHold);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);

  box2 = gtk_hbox_new (TRUE, 0);
  gtk_widget_show (box2);
  gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_VolEnvDecay);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_VolEnvSustain);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_VolEnvRelease);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);

  box2 = gtk_hbox_new (TRUE, 0);
  gtk_widget_show (box2);
  gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_Attenuation);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_Key2VolEnvHold);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_Key2VolEnvDecay);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);

  /* add the box to the notebook with label */
  label = gtk_label_new (_("Vol Envelope"));
  gtk_widget_show (label);
  gtk_notebook_append_page (GTK_NOTEBOOK (notebook), box, label);


  /* create vbox for third page */
  box = gtk_vbox_new (FALSE, 0);
  gtk_widget_show (box);

  /* Mod Envelope frame */
  frame = gtk_frame_new (_("Modulation Envelope"));
  gtk_widget_show (frame);
  gtk_box_pack_start (GTK_BOX (box), frame, TRUE, TRUE, 2);
  box1 = gtk_vbox_new (TRUE, 0);
  gtk_widget_show (box1);
  gtk_container_add (GTK_CONTAINER (frame), box1);

  box2 = gtk_hbox_new (TRUE, 0);
  gtk_widget_show (box2);
  gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_ModEnvDelay);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_ModEnvAttack);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_ModEnvHold);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);

  box2 = gtk_hbox_new (TRUE, 0);
  gtk_widget_show (box2);
  gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_ModEnvDecay);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_ModEnvSustain);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_ModEnvRelease);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);

  box2 = gtk_hbox_new (TRUE, 0);
  gtk_widget_show (box2);
  gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_ModEnv2Pitch);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_ModEnv2FilterFc);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);

  box2 = gtk_hbox_new (TRUE, 0);
  gtk_widget_show (box2);
  gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_Key2ModEnvHold);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_Key2ModEnvDecay);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);

  /* add the box to the notebook with label */
  label = gtk_label_new (_("Mod Envelope"));
  gtk_widget_show (label);
  gtk_notebook_append_page (GTK_NOTEBOOK (notebook), box, label);


  /* create vbox for fourth page */
  box = gtk_vbox_new (FALSE, 0);
  gtk_widget_show (box);

  /* LFO frame */
  /* LFO stands for Low Frequency Oscillator */
  frame = gtk_frame_new (_("Modulation LFO"));
  gtk_widget_show (frame);
  gtk_box_pack_start (GTK_BOX (box), frame, TRUE, TRUE, 2);
  box1 = gtk_vbox_new (TRUE, 0);
  gtk_widget_show (box1);
  gtk_container_add (GTK_CONTAINER (frame), box1);

  box2 = gtk_hbox_new (TRUE, 0);
  gtk_widget_show (box2);
  gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_ModLFODelay);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_ModLFOFreq);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);

  box2 = gtk_hbox_new (TRUE, 0);
  gtk_widget_show (box2);
  gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_ModLFO2Pitch);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_ModLFO2FilterFc);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_ModLFO2Vol);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);

  frame = gtk_frame_new (_("Vibrato LFO"));
  gtk_widget_show (frame);
  gtk_box_pack_start (GTK_BOX (box), frame, TRUE, TRUE, 2);
  box1 = gtk_vbox_new (TRUE, 0);
  gtk_widget_show (box1);
  gtk_container_add (GTK_CONTAINER (frame), box1);

  box2 = gtk_hbox_new (TRUE, 0);
  gtk_widget_show (box2);
  gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_VibLFODelay);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_VibLFOFreq);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);
  ctrl = create_gen_control (Gen_VibLFO2Pitch);
  gtk_box_pack_start (GTK_BOX (box2), ctrl, TRUE, TRUE, 2);

  /* add the box to the notebook with label */
  label = gtk_label_new (_("LFOs"));
  gtk_widget_show (label);
  gtk_notebook_append_page (GTK_NOTEBOOK (notebook), box, label);

  sfgen_ctrl_notebook = notebook;
  return (scroll_win);
}

static void
sfgen_set_view_mode (gint mode)
{				/* set mode for gen view */
  GtkWidget *list;
  static gchar blank[] = "--";
  guint16 genid;
  gint i, i2;

  switch (mode)
    {
    case GENMODE_INACTIVE:
      for (i = 0; i < CLIST_LAST; i++)
	{
	  list = sfgen_clists[i];
	  for (i2 = 0; i2 < GTK_CLIST (list)->rows; i2++)
	    {
	      gtk_clist_set_text (GTK_CLIST (list), i2, 1, blank);
	      gtk_clist_set_text (GTK_CLIST (list), i2, 2, blank);
	    }
	}
      break;
    case GENMODE_ABS:
      for (i = 0; i < CLIST_LAST; i++)
	{
	  list = sfgen_clists[i];
	  for (i2 = 0; i2 < GTK_CLIST (list)->rows; i2++)
	    {
	      genid =
		GPOINTER_TO_INT (gtk_clist_get_row_data (GTK_CLIST (list),
		  i2));

	      /* genconv[].unittxt are constant strings, translate them */
	      gtk_clist_set_text (GTK_CLIST (list), i2, 1,
		_(genconv[genparms[genid].unit].unittxt));
	      gtk_clist_set_text (GTK_CLIST (list), i2, 2, blank);
	    }
	}
      break;
    case GENMODE_OFS:
      for (i = 0; i < CLIST_LAST; i++)
	{
	  list = sfgen_clists[i];
	  for (i2 = 0; i2 < GTK_CLIST (list)->rows; i2++)
	    {
	      genid =
		GPOINTER_TO_INT (gtk_clist_get_row_data (GTK_CLIST (list),
		  i2));

	      /* genconv[].ofstxt are constant strings, translate them */
	      gtk_clist_set_text (GTK_CLIST (list), i2, 1,
		_(genconv[genparms[genid].unit].ofstxt));
	      gtk_clist_set_text (GTK_CLIST (list), i2, 2, blank);
	    }
	}
      break;
    }
}

static void
sfgen_view_update (SFGenAmount * garr)
{
  GtkWidget *list;
  gchar vbuf[20];
  gint i, i2, genid;
  gboolean absval;

  absval = (sfgen_mode == GENMODE_ABS);

  for (i = 0; i < CLIST_LAST; i++)
    {
      list = sfgen_clists[i];
      for (i2 = 0; i2 < GTK_CLIST (list)->rows; i2++)
	{
	  genid =
	    GPOINTER_TO_INT (gtk_clist_get_row_data (GTK_CLIST (list), i2));

	  /* convert the generator value to user units */
	  gen_sf2userstr (genid, garr[genid], vbuf, absval);
	  gtk_clist_set_text (GTK_CLIST (list), i2, 2, vbuf);
	}
    }
}

static void
sfgen_cb_gen_clist_button_pressed (GtkWidget * btn, gint page)
{
  sfgen_set_win (SFGEN_CTRL);

  gtk_notebook_set_page (GTK_NOTEBOOK (sfgen_ctrl_notebook), page);

  /* update gen view/ctrl toggle buttons on toolbar and main menu */
  tbar_set_lowpane_togbtn (SFGEN_CTRL);
  sfmenu_set_lowpane_radio_item (SFGEN_CTRL);
}

static GtkWidget *
create_gen_clist (gchar * title, gint page)
{
  GtkWidget *list;
  gchar *titles[3];

  titles[0] = title;
  titles[1] = _("unit");
  titles[2] = _("value");

  list = gtk_clist_new_with_titles (3, titles);
  gtk_widget_show (GTK_WIDGET (list));
  gtk_clist_set_column_width (GTK_CLIST (list), 0, (gint) (85));
  gtk_clist_set_column_width (GTK_CLIST (list), 1, (gint) (40));
  gtk_clist_set_column_width (GTK_CLIST (list), 2, (gint) (60));

  gtk_clist_set_column_justification (GTK_CLIST (list), 1,
    GTK_JUSTIFY_CENTER);
  gtk_clist_set_column_justification (GTK_CLIST (list), 2, GTK_JUSTIFY_RIGHT);
  gtk_clist_set_selection_mode (GTK_CLIST (list), GTK_SELECTION_EXTENDED);
  gtk_clist_column_titles_passive (GTK_CLIST (list));
  gtk_clist_column_title_active (GTK_CLIST (list), 0);
  gtk_signal_connect (GTK_OBJECT (GTK_CLIST (list)->column[0].button),
    "clicked", GTK_SIGNAL_FUNC (sfgen_cb_gen_clist_button_pressed),
    GINT_TO_POINTER (page));

  return (list);
}

static void
add_gen_citem (guint16 genid, GtkWidget * list)
{
  gint row;
  gchar *data[] = { NULL, "--", "--" };

  /* genparms[].label are constant strings, must be translated by gettext */
  data[0] = _(genparms[genid].label);
  row = gtk_clist_append (GTK_CLIST (list), data);
  gtk_clist_set_row_data (GTK_CLIST (list), row,
    GINT_TO_POINTER ((gint) genid));
}

static GtkWidget *
sfgen_view_create (void)
{
  GtkWidget *scroll_win;
  GtkWidget *box, *box2;
  GtkWidget *list;

  scroll_win = gtk_scrolled_window_new (NULL, NULL);
  gtk_container_border_width (GTK_CONTAINER (scroll_win), 0);
  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scroll_win),
    GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
  gtk_widget_show (scroll_win);

  box = gtk_hbox_new (TRUE, 0);
  gtk_widget_show (GTK_WIDGET (box));
  gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (scroll_win), box);

  box2 = gtk_vbox_new (FALSE, 0);
  gtk_widget_show (GTK_WIDGET (box2));

  sfgen_clists[CLIST_PITCH] = list = create_gen_clist (_("Pitch"), 0);
  add_gen_citem (Gen_CoarseTune, list);
  add_gen_citem (Gen_FineTune, list);
  add_gen_citem (Gen_ScaleTune, list);
  gtk_box_pack_start (GTK_BOX (box2), list, TRUE, TRUE, 0);

  sfgen_clists[CLIST_EFFECTS] = list = create_gen_clist (_("Effects"), 0);
  add_gen_citem (Gen_FilterQ, list);
  add_gen_citem (Gen_FilterFc, list);
  add_gen_citem (Gen_ReverbSend, list);
  add_gen_citem (Gen_ChorusSend, list);
  add_gen_citem (Gen_Pan, list);
  gtk_box_pack_start (GTK_BOX (box2), list, TRUE, TRUE, 0);
  gtk_box_pack_start (GTK_BOX (box), box2, TRUE, TRUE, 0);

  sfgen_clists[CLIST_VOLENV] = list = create_gen_clist (_("Vol Envelope"), 1);
  add_gen_citem (Gen_VolEnvDelay, list);
  add_gen_citem (Gen_VolEnvAttack, list);
  add_gen_citem (Gen_VolEnvHold, list);
  add_gen_citem (Gen_VolEnvDecay, list);
  add_gen_citem (Gen_VolEnvSustain, list);
  add_gen_citem (Gen_VolEnvRelease, list);
  add_gen_citem (Gen_Attenuation, list);
  add_gen_citem (Gen_Key2VolEnvHold, list);
  add_gen_citem (Gen_Key2VolEnvDecay, list);
  gtk_box_pack_start (GTK_BOX (box), list, TRUE, TRUE, 0);

  sfgen_clists[CLIST_MODENV] = list = create_gen_clist (_("Mod Envelope"), 2);
  add_gen_citem (Gen_ModEnvDelay, list);
  add_gen_citem (Gen_ModEnvAttack, list);
  add_gen_citem (Gen_ModEnvHold, list);
  add_gen_citem (Gen_ModEnvDecay, list);
  add_gen_citem (Gen_ModEnvSustain, list);
  add_gen_citem (Gen_ModEnvRelease, list);
  add_gen_citem (Gen_ModEnv2Pitch, list);
  add_gen_citem (Gen_ModEnv2FilterFc, list);
  add_gen_citem (Gen_Key2ModEnvHold, list);
  add_gen_citem (Gen_Key2ModEnvDecay, list);
  gtk_box_pack_start (GTK_BOX (box), list, TRUE, TRUE, 0);

  box2 = gtk_vbox_new (FALSE, 0);
  gtk_widget_show (GTK_WIDGET (box2));

  sfgen_clists[CLIST_MODLFO] = list = create_gen_clist (_("Mod LFO"), 3);
  add_gen_citem (Gen_ModLFODelay, list);
  add_gen_citem (Gen_ModLFOFreq, list);
  add_gen_citem (Gen_ModLFO2Pitch, list);
  add_gen_citem (Gen_ModLFO2FilterFc, list);
  add_gen_citem (Gen_ModLFO2Vol, list);
  gtk_box_pack_start (GTK_BOX (box2), list, TRUE, TRUE, 0);

  sfgen_clists[CLIST_VIBLFO] = list = create_gen_clist (_("Vibrato LFO"), 3);
  add_gen_citem (Gen_VibLFODelay, list);
  add_gen_citem (Gen_VibLFOFreq, list);
  add_gen_citem (Gen_VibLFO2Pitch, list);
  gtk_box_pack_start (GTK_BOX (box2), list, TRUE, TRUE, 0);
  gtk_box_pack_start (GTK_BOX (box), box2, TRUE, TRUE, 0);

  return (scroll_win);
}

/* toggles active generator window between view/control */
void
sfgen_set_win (gint wintype)
{
  GtkWidget *new_win, *old_win;

  if (wintype == sfgen_actv_win)
    return;

  switch (wintype)
    {
    case SFGEN_VIEW:
      new_win = sfgen_view;
      break;
    case SFGEN_CTRL:
      new_win = sfgen_ctrl;
      break;
    case SFGEN_SAMVIEW:
      new_win = samview_win;
      break;
    default:
      return;
    }

  switch (sfgen_actv_win)
    {
    case SFGEN_VIEW:
      old_win = sfgen_view;
      break;
    case SFGEN_CTRL:
      old_win = sfgen_ctrl;
      break;
    case SFGEN_SAMVIEW:
      old_win = samview_win;
      break;
    }

  gtk_widget_hide (old_win);
  gtk_widget_show (new_win);

  /* if view to switch to is gen view or control then update it */
  if (wintype != SFGEN_SAMVIEW && uisf_selected_zone)
    sfgen_update (uisf_selected_zone);

  sfgen_actv_win = wintype;
}

GtkWidget *
sfgen_win_create (void)
{
  GtkWidget *box;

  box = gtk_vbox_new (FALSE, 0);
  gtk_widget_show (box);

  sfgen_view = sfgen_view_create ();
  sfgen_ctrl = sfgen_ctrl_create ();
  samview_win = samview_create ();

  gtk_widget_hide (sfgen_ctrl);
  gtk_widget_hide (samview_win);

  gtk_box_pack_start (GTK_BOX (box), sfgen_view, TRUE, TRUE, 0);
  gtk_box_pack_start (GTK_BOX (box), sfgen_ctrl, TRUE, TRUE, 0);
  gtk_box_pack_start (GTK_BOX (box), samview_win, TRUE, TRUE, 0);

  sfgen_actv_win = SFGEN_VIEW;

  return (box);
}