/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */

/*

 *  This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation;

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 * 

 * Authors: Faker Moatamri <faker.moatamri@sophia.inria.fr>

 *          Mathieu Lacage <mathieu.lacage@sophia.inria.fr>

 */

#include "display-functions.h"

#include "raw-text-config.h"

#include "ns3/config.h"

#include "ns3/string.h"

#include "ns3/pointer.h"

namespace ns3 {

/**

 * This function includes the name of the attribute or the editable value

 * in the second column 

 */

void

cell_data_function_col_1 (GtkTreeViewColumn *col, GtkCellRenderer *renderer,

                          GtkTreeModel *model, GtkTreeIter *iter, gpointer user_data)

{

  ModelNode *node;

  gtk_tree_model_get (model, iter, COL_NODE, &node, -1);

  if (node->type == ModelNode::NODE_ATTRIBUTE)

    {

      StringValue str;

      node->object->GetAttribute (node->name, str);

      g_object_set (renderer, "text", str.Get ().c_str (), (char*) 0);

      g_object_set (renderer, "editable", TRUE, (char*) 0);

    }

  else

    {

      g_object_set (renderer, "text", "", (char*) 0);

      g_object_set (renderer, "editable", FALSE, (char*) 0);

    }

}

/**

 * This function includes the name of the object, pointer, vector or vector item

 * in the first column

 */

void

cell_data_function_col_0 (GtkTreeViewColumn *col, GtkCellRenderer *renderer, GtkTreeModel *model,

                          GtkTreeIter *iter, gpointer user_data)

{

  ModelNode *node;

  gtk_tree_model_get (model, iter, COL_NODE, &node, -1);

  g_object_set (renderer, "editable", FALSE, (char*) 0);

  switch (node->type)

    {

    case ModelNode::NODE_OBJECT:

      g_object_set (renderer, "text", node->object->GetInstanceTypeId ().GetName ().c_str (), (char*) 0);

      break;

    case ModelNode::NODE_POINTER:

      g_object_set (renderer, "text", node->name.c_str (), (char*) 0);

      break;

    case ModelNode::NODE_VECTOR:

      g_object_set (renderer, "text", node->name.c_str (), (char*) 0);

      break;

    case ModelNode::NODE_VECTOR_ITEM:

      {

        std::stringstream oss;

        oss << node->index;

        g_object_set (renderer, "text", oss.str ().c_str (), (char*) 0);

      }

      break;

    case ModelNode::NODE_ATTRIBUTE:

      g_object_set (renderer, "text", node->name.c_str (), (char*) 0);

      break;

    }

}

/**

 * This is the callback called when the value of an attribute is changed

 */

void

cell_edited_callback (GtkCellRendererText *cell, gchar *path_string,

                      gchar *new_text, gpointer user_data)

{

  GtkTreeModel *model = GTK_TREE_MODEL (user_data);

  GtkTreeIter iter;

  gtk_tree_model_get_iter_from_string (model, &iter, path_string);

  ModelNode *node;

  gtk_tree_model_get (model, &iter, COL_NODE, &node, -1);

  NS_ASSERT (node->type == ModelNode::NODE_ATTRIBUTE);

  node->object->SetAttribute (node->name, StringValue (new_text));

}

/**

 * This function gets the column number 0 or 1 from the mouse

 * click

 */

int

get_col_number_from_tree_view_column (GtkTreeViewColumn *col)

{

  GList *cols;

  int num;

  g_return_val_if_fail (col != 0, -1);

  g_return_val_if_fail (col->tree_view != 0, -1);

  cols = gtk_tree_view_get_columns (GTK_TREE_VIEW (col->tree_view));

  num = g_list_index (cols, (gpointer) col);

  g_list_free (cols);

  return num;

}

/**

 * This function displays the tooltip for an object, pointer, vector

 * item or an attribute

 */

gboolean

cell_tooltip_callback (GtkWidget *widget, gint x, gint y, gboolean keyboard_tip, 

                       GtkTooltip *tooltip, gpointer user_data)

{

  GtkTreeModel *model;

  GtkTreeIter iter;

  GtkTreeViewColumn * column;

  if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget), &x, &y,

                                          keyboard_tip, &model, 0, &iter))

    {

      return FALSE;

    }

  if (!gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (widget), x, y, 0, &column, 0, 0))

    {

      return FALSE;

    }

  int col = get_col_number_from_tree_view_column (column);

  ModelNode *node;

  gtk_tree_model_get (model, &iter, COL_NODE, &node, -1);

  switch (node->type)

    {

    case ModelNode::NODE_OBJECT:

      if (col == 0)

        {

          std::string tip = "This object is of type "

            + node->object->GetInstanceTypeId ().GetName ();

          gtk_tooltip_set_text (tooltip, tip.c_str ());

          return TRUE;

        }

      break;

    case ModelNode::NODE_POINTER:

      if (col == 0)

        {

          PointerValue ptr;

          node->object->GetAttribute (node->name, ptr);

          std::string tip = "This object is of type "

            + ptr.GetObject ()->GetInstanceTypeId ().GetName ();

          gtk_tooltip_set_text (tooltip, tip.c_str ());

          return TRUE;

        }

      break;

    case ModelNode::NODE_VECTOR:

      break;

    case ModelNode::NODE_VECTOR_ITEM:

      if (col == 0)

        {

          std::string tip = "This object is of type "

            + node->object->GetInstanceTypeId ().GetName ();

          gtk_tooltip_set_text (tooltip, tip.c_str ());

          return TRUE;

        }

      break;

    case ModelNode::NODE_ATTRIBUTE:

      {

        uint32_t attrIndex = 0;

        TypeId tid;

        for (tid = node->object->GetInstanceTypeId (); tid.HasParent (); tid

               = tid.GetParent ())

          {

            for (uint32_t i = 0; i < tid.GetAttributeN (); ++i)

              {

                if (tid.GetAttributeName (i) == node->name)

                  {

                    attrIndex = i;

                    goto out;

                  }

              }

          }

out: if (col == 0)

          {

            std::string tip = tid.GetAttributeHelp (attrIndex);

            gtk_tooltip_set_text (tooltip, tip.c_str ());

          }

        else

          {

            Ptr<const AttributeChecker> checker = tid.GetAttributeChecker (

                attrIndex);

            std::string tip;

            tip = "This attribute is of type " + checker->GetValueTypeName ();

            if (checker->HasUnderlyingTypeInformation ())

              {

                tip += " " + checker->GetUnderlyingTypeInformation ();

              }

            gtk_tooltip_set_text (tooltip, tip.c_str ());

          }

        return TRUE;

      }

      break;

    }

  return FALSE;

}

/**

 * This is the main view opening the widget, getting tooltips and drawing the 

 * tree of attributes...

 */

GtkWidget *

create_view (GtkTreeStore *model)

{

  GtkTreeViewColumn *col;

  GtkCellRenderer *renderer;

  GtkWidget *view;

  view = gtk_tree_view_new ();

  g_object_set (view, "has-tooltip", TRUE, (char*) 0);

  g_signal_connect (view, "query-tooltip", (GCallback) cell_tooltip_callback, 0);

  gtk_tree_view_set_grid_lines (GTK_TREE_VIEW (view), GTK_TREE_VIEW_GRID_LINES_BOTH);

  gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (view), TRUE);

  col = gtk_tree_view_column_new ();

  gtk_tree_view_column_set_title (col, "Object Attributes");

  gtk_tree_view_append_column (GTK_TREE_VIEW (view), col);

  renderer = gtk_cell_renderer_text_new ();

  gtk_tree_view_column_pack_start (col, renderer, TRUE);

  gtk_tree_view_column_set_cell_data_func (col, renderer, cell_data_function_col_0, 0, 0);

  g_object_set (renderer, "editable", FALSE, (char*) 0);

  col = gtk_tree_view_column_new ();

  gtk_tree_view_column_set_title (col, "Attribute Value");

  gtk_tree_view_append_column (GTK_TREE_VIEW (view), col);

  renderer = gtk_cell_renderer_text_new ();

  g_signal_connect (renderer, "edited", (GCallback) cell_edited_callback, model);

  gtk_tree_view_column_pack_start (col, renderer, TRUE);

  gtk_tree_view_column_set_cell_data_func (col, renderer, cell_data_function_col_1, 0, 0);

  gtk_tree_view_set_model (GTK_TREE_VIEW (view), GTK_TREE_MODEL (model));

  g_object_unref (model); /* destroy model automatically with view */

  return view;

}

/**

 * This is the action done when the user presses on the save button.

 * It will save the config to a file.

 */

void

save_clicked (GtkButton *button, gpointer user_data)

{

  GtkWidget *parent_window = GTK_WIDGET (user_data);

  GtkWidget *dialog;

  dialog = gtk_file_chooser_dialog_new ("Save File", GTK_WINDOW (parent_window), GTK_FILE_CHOOSER_ACTION_SAVE,

                                        GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_SAVE,

                                        GTK_RESPONSE_ACCEPT, (char *) 0);

  gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dialog),

                                                  TRUE);

  gtk_file_chooser_set_current_name (GTK_FILE_CHOOSER (dialog), "config.txt");

  if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)

    {

      char *filename;

      filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));

      RawTextConfigSave config;

      config.SetFilename (filename);

      config.Attributes ();

      g_free (filename);

    }

  gtk_widget_destroy (dialog);

}

/**

 * If the user presses the button load, it will load the config file into memory.

 */

void

load_clicked (GtkButton *button, gpointer user_data)

{

  GtkWidget *parent_window = GTK_WIDGET (user_data);

  GtkWidget *dialog;

  dialog = gtk_file_chooser_dialog_new ("Open File", GTK_WINDOW (parent_window), GTK_FILE_CHOOSER_ACTION_OPEN,

                                        GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_OPEN,

                                        GTK_RESPONSE_ACCEPT, (char *) 0);

  if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)

    {

      char *filename;

      filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));

      RawTextConfigLoad config;

      config.SetFilename (filename);

      config.Attributes ();

    }

  gtk_widget_destroy (dialog);

}

/**

 * Exit the window when exit button is pressed

 */

void

exit_clicked_callback (GtkButton *button, gpointer user_data)

{

  gtk_main_quit ();

  gtk_widget_hide (GTK_WIDGET (user_data));

}

/**

 * Exit the application

 */

gboolean

delete_event_callback (GtkWidget *widget, GdkEvent *event, gpointer user_data)

{

  gtk_main_quit ();

  gtk_widget_hide (GTK_WIDGET (user_data));

  return TRUE;

}

/**

 * Delete the tree model contents

 */

gboolean

clean_model_callback (GtkTreeModel *model, GtkTreePath *path,

                      GtkTreeIter *iter, gpointer data)

{

  ModelNode *node;

  gtk_tree_model_get (GTK_TREE_MODEL (model), iter, COL_NODE, &node, -1);

  delete node;

  gtk_tree_store_set (GTK_TREE_STORE (model), iter, COL_NODE, (ModelNode*) 0,

                      -1);

  return FALSE;

}

/**************************     display functions used by default configurator **********************/

/**

 * This function writes data in the second column, this data is going to be editable

 * if it is a NODE_ATTRIBUTE

 */

void

cell_data_function_col_1_config_default (GtkTreeViewColumn *col, GtkCellRenderer *renderer, 

                                         GtkTreeModel *model, GtkTreeIter *iter,

                                         gpointer user_data)

{

  ModelTypeid *node;

  gtk_tree_model_get (model, iter, COL_TYPEID, &node, -1);

  if (node->type == ModelTypeid::NODE_ATTRIBUTE)

    {

      g_object_set (renderer, "text", node->defaultValue.c_str (), (char*) 0);

      g_object_set (renderer, "editable", TRUE, (char*) 0);

    }

  else

    {

      g_object_set (renderer, "text", "", (char*) 0);

      g_object_set (renderer, "editable", FALSE, (char*) 0);

    }

}

/**

 * This function writes the attribute or typeid name in the column 0

 */

void

cell_data_function_col_0_config_default (GtkTreeViewColumn *col, GtkCellRenderer *renderer, GtkTreeModel *model, 

                                         GtkTreeIter *iter, gpointer user_data)

{

  ModelTypeid *node;

  gtk_tree_model_get (model, iter, COL_NODE, &node, -1);

  g_object_set (renderer, "editable", FALSE, (char*) 0);

  switch (node->type)

    {

    case ModelTypeid::NODE_TYPEID:

      g_object_set (renderer, "text", node->tid.GetName ().c_str (), (char*) 0);

      break;

    case ModelTypeid::NODE_ATTRIBUTE:

      g_object_set (renderer, "text", node->name.c_str (), (char*) 0);

      break;

    }

}

/**

 *  This functions is called whenever there is a change in the value of an attribute

 *  If the input value is ok, it will be updated in the default value and in the

 *  gui, otherwise, it won't be updated in both.

 */

void

cell_edited_callback_config_default (GtkCellRendererText *cell, gchar *path_string,

                                     gchar *new_text, gpointer user_data)

{

  GtkTreeModel *model = GTK_TREE_MODEL (user_data);

  GtkTreeIter iter;

  gtk_tree_model_get_iter_from_string (model, &iter, path_string);

  ModelTypeid *node;

  gtk_tree_model_get (model, &iter, COL_NODE, &node, -1);

  NS_ASSERT (node->type == ModelTypeid::NODE_ATTRIBUTE);

  if (Config::SetDefaultFailSafe (node->tid.GetAttributeFullName (node->index),StringValue (new_text)))

    {

      node->defaultValue = new_text;

    }

}

/**

 * This function is used to display a tooltip whenever the user puts the mouse

 * over a type ID or an attribute. It will give the type and the possible values of

 * an attribute value and the type of the object for an attribute object or a 

 * typeID object 

 */

gboolean

cell_tooltip_callback_config_default (GtkWidget *widget, gint x, gint y,

                                      gboolean keyboard_tip, GtkTooltip *tooltip, gpointer user_data)

{

  GtkTreeModel *model;

  GtkTreeIter iter;

  GtkTreeViewColumn * column;

  if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget), &x, &y,

                                          keyboard_tip, &model, 0, &iter))

    {

      return FALSE;

    }

  if (!gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (widget), x, y, 0, &column, 0, 0))

    {

      return FALSE;

    }

  int col = get_col_number_from_tree_view_column (column);

  ModelTypeid *node;

  gtk_tree_model_get (model, &iter, COL_NODE, &node, -1);

  switch (node->type)

    {

    case ModelTypeid::NODE_TYPEID:

      if (col == 0)

        {

          std::string tip = "This object is of type " + node->tid.GetName ();

          gtk_tooltip_set_text (tooltip, tip.c_str ());

          return TRUE;

        }

      break;

    case ModelTypeid::NODE_ATTRIBUTE:

      {

        uint32_t attrIndex = node->index;

        if (col == 0)

          {

            std::string tip = node->tid.GetAttributeHelp (attrIndex);

            gtk_tooltip_set_text (tooltip, tip.c_str ());

          }

        else

          {

            Ptr<const AttributeChecker> checker = node->tid.GetAttributeChecker (attrIndex);

            std::string tip;

            tip = "This attribute is of type " + checker->GetValueTypeName ();

            if (checker->HasUnderlyingTypeInformation ())

              {

                tip += " " + checker->GetUnderlyingTypeInformation ();

              }

            gtk_tooltip_set_text (tooltip, tip.c_str ());

          }

        return TRUE;

      }

      break;

    }

  return FALSE;

}

/**

 * This is the action done when the user presses on the save button.

 * It will save the config to a file.

 */

void

save_clicked_default (GtkButton *button, gpointer user_data)

{

  GtkWidget *parent_window = GTK_WIDGET (user_data);

  GtkWidget *dialog;

  dialog = gtk_file_chooser_dialog_new ("Save File", GTK_WINDOW (parent_window), GTK_FILE_CHOOSER_ACTION_SAVE,

                                        GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_SAVE,

                                        GTK_RESPONSE_ACCEPT, (char *) 0);

  gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dialog),

                                                  TRUE);

  gtk_file_chooser_set_current_name (GTK_FILE_CHOOSER (dialog), "config.txt");

  if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)

    {

      char *filename;

      filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));

      RawTextConfigSave config;

      config.SetFilename (filename);

      config.Default ();

      g_free (filename);

    }

  gtk_widget_destroy (dialog);

}

/**

 * If the user presses the button load, it will load the config file into memory.

 */

void

load_clicked_default (GtkButton *button, gpointer user_data)

{

  GtkWidget *parent_window = GTK_WIDGET (user_data);

  GtkWidget *dialog;

  dialog = gtk_file_chooser_dialog_new ("Open File", GTK_WINDOW (parent_window), GTK_FILE_CHOOSER_ACTION_OPEN,

                                        GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_OPEN,

                                        GTK_RESPONSE_ACCEPT, (char *) 0);

  if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)

    {

      char *filename;

      filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));