#include <gtk/gtk.h>

#include <rfftw.h>
#include "fluids.h"


#include "palette.h"
#include "flowvis.h"

#include "gtk_flowvis.h"



static gboolean select_colormap(GtkComboBox *combo, gpointer data)
{
  flowvis_set_colormap(gtk_combo_box_get_active(combo));

  return TRUE;
}


static gboolean select_num_colors(GtkRange *adjustment, gpointer data)
{
  flowvis_set_num_colors((int)gtk_range_get_value(adjustment));

  return TRUE;
}

static gboolean select_alpha(GtkRange *adjustment, gpointer data)
{
  flowvis_set_alpha((float)gtk_range_get_value(adjustment));

  return TRUE;
}

static gboolean select_history(GtkRange *adjustment, gpointer data)
{
  flowvis_set_hisdex((int)gtk_range_get_value(adjustment) - 1);
          
  return TRUE;
}

static gboolean select_sort(GtkComboBox *combo, gpointer data)
{
  flowvis_set_sort(gtk_combo_box_get_active(combo));

  return TRUE;
}



GtkWidget *create_flowvis_page(void)
{
  /* in reality a page is really just a vbox filled with other widgets
   */
  GtkWidget *page;
  GtkWidget *frame;
  GtkWidget *box;
  GtkWidget *label;  
  GtkWidget *combo;  
  GtkAdjustment *adjustment;
  GtkWidget *scale;

  page = gtk_vbox_new(FALSE, 0);

    frame = gtk_frame_new("Colors");

      box = gtk_vbox_new(FALSE, 0);
        

        label = gtk_label_new("Colormap");

        gtk_box_pack_start(GTK_BOX(box), label, FALSE, TRUE, 0);
        gtk_widget_show(label);


        combo = gtk_combo_box_new_text();

          gtk_combo_box_append_text(GTK_COMBO_BOX(combo), PALETTE_NAME_BLACKWHITE);
          gtk_combo_box_append_text(GTK_COMBO_BOX(combo), PALETTE_NAME_RAINBOW);
          gtk_combo_box_append_text(GTK_COMBO_BOX(combo), PALETTE_NAME_BANDS);
          gtk_combo_box_append_text(GTK_COMBO_BOX(combo), PALETTE_NAME_GREY_BANDS);
          gtk_combo_box_append_text(GTK_COMBO_BOX(combo), PALETTE_NAME_WILRIK);
          gtk_combo_box_append_text(GTK_COMBO_BOX(combo), PALETTE_NAME_OLIVER);
          gtk_combo_box_append_text(GTK_COMBO_BOX(combo), PALETTE_NAME_RED);
          gtk_combo_box_append_text(GTK_COMBO_BOX(combo), PALETTE_NAME_GREEN);
          gtk_combo_box_append_text(GTK_COMBO_BOX(combo), PALETTE_NAME_BLUE);

          gtk_combo_box_set_active(GTK_COMBO_BOX(combo), flowvis_get_colormap());
          g_signal_connect(combo, "changed", G_CALLBACK(select_colormap), (gpointer)NULL);

        gtk_box_pack_start(GTK_BOX(box), combo, FALSE, TRUE, 0);
        gtk_widget_show(combo);


        label = gtk_label_new("Number of Colors");

        gtk_box_pack_start(GTK_BOX(box), label, FALSE, TRUE, 0);
        gtk_widget_show(label);

        adjustment = GTK_ADJUSTMENT(gtk_adjustment_new(
              flowvis_get_num_colors(), 1, PALETTE_MAXCOLORS, 0.5, 5, 0.1));
        scale = gtk_hscale_new(adjustment);
          gtk_scale_set_digits(GTK_SCALE(scale), 0);
          g_signal_connect(GTK_RANGE(scale), "value-changed", G_CALLBACK(select_num_colors), NULL);

      gtk_box_pack_start(GTK_BOX(box), scale, FALSE, TRUE, 0);
      gtk_widget_show(scale);

        label = gtk_label_new("Alpha");

        gtk_box_pack_start(GTK_BOX(box), label, FALSE, TRUE, 0);
        gtk_widget_show(label);

        adjustment = GTK_ADJUSTMENT(gtk_adjustment_new(
              flowvis_get_alpha(), 0, 1, 0.05, 0.05, 0.01));
        scale = gtk_hscale_new(adjustment);
          gtk_scale_set_digits(GTK_SCALE(scale), 1);
          g_signal_connect(GTK_RANGE(scale), "value-changed", G_CALLBACK(select_alpha), NULL);
        gtk_box_pack_start(GTK_BOX(box), scale, FALSE, TRUE, 0);
        gtk_widget_show(scale);

      gtk_container_add(GTK_CONTAINER(frame), box);
      gtk_widget_show(box);label = gtk_label_new("Select smoke history frame");

        gtk_box_pack_start(GTK_BOX(box), label, FALSE, TRUE, 0);
        gtk_widget_show(label);
      
        adjustment = GTK_ADJUSTMENT(gtk_adjustment_new(0, 1, HISTORY_SIZE, 5, 5, 0));
       scale = gtk_hscale_new(adjustment);
			  gtk_scale_set_digits(GTK_SCALE(scale), 0);
        g_signal_connect(GTK_RANGE(scale), "value-changed", G_CALLBACK(select_history), NULL);

      gtk_box_pack_start(GTK_BOX(box), scale, FALSE, TRUE, 0);
      gtk_widget_show(scale);
      
      gtk_box_pack_start(GTK_BOX(page), frame, FALSE, TRUE, 0);

      label = gtk_label_new("History visualization");
      gtk_box_pack_start(GTK_BOX(box), label, FALSE, TRUE, 0);
      gtk_widget_show(label);
      
      combo = gtk_combo_box_new_text();

        gtk_combo_box_append_text(GTK_COMBO_BOX(combo), "Selected frame");
        gtk_combo_box_append_text(GTK_COMBO_BOX(combo), "Entire history (3D plot)");

        gtk_combo_box_set_active(GTK_COMBO_BOX(combo), flowvis_get_sort());
        g_signal_connect(combo, "changed", G_CALLBACK(select_sort), (gpointer)NULL);

      gtk_box_pack_start(GTK_BOX(box), combo, FALSE, TRUE, 0);
      gtk_widget_show(combo);

    gtk_widget_show(frame);


  return page;
}