log_error(ERROR_PARSE_ERROR,"parse_stats_dialog: cur_pc=NULL",NULL);     display_grid_fill = false;          grid_fill_check.signal_toggled().connect(sigc::mem_fun(*this,                                     &parse_stats_dialog::on_check_toggle));     prev_button.signal_clicked().connect(sigc::mem_fun(*this,                                     &parse_stats_dialog::on_prev_button_click));     next_button.signal_clicked().connect(sigc::mem_fun(*this,                                     &parse_stats_dialog::on_next_button_click));     // start packing the widgets:     get_vbox()->pack_start(grid_da, Gtk::PACK_SHRINK);          // fill the combo_box:     prs_combo_box.append_text("Letter Matches:");          char cur_pr_string[64];     vector<const char *> number_letters;     number_letters.push_back("st");     number_letters.push_back("nd");     number_letters.push_back("rd");     number_letters.push_back("th");     number_letters.push_back("th");     for(int i = 0; i < parse_dialog_num_matches; i++) {                    if(i >= number_letters.size())               break;                     sprintf(cur_pr_string, "(%d%s) %s:  %05e", i + 1, number_letters[i],                  cur_pc->self_node.char_matches[i].character.c_str(),                   cur_pc->self_node.char_matches[i].probability);          prs_combo_box.append_text(cur_pr_string);     }     prs_combo_box.set_active(0);          middle_hbox.pack_start(prs_combo_box);     middle_hbox.pack_start(grid_fill_check);     get_vbox()->pack_start(middle_hbox, Gtk::PACK_SHRINK);     get_vbox()->pack_start(sep_line, Gtk::PACK_SHRINK);          arrows_buttonbox.pack_start(prev_button);     arrows_buttonbox.pack_end(next_button);     get_vbox()->pack_start(arrows_buttonbox, Gtk::PACK_SHRINK);     grid_da.set_grid_params(trcfg_grid_size_x, trcfg_grid_size_y,                              trcfg_gridcell_size_x, trcfg_gridcell_size_y);     signals.do_grid_cfg_new_letter(cur_pc->self_node.self_box);          show_all_children();}void parse_stats_dialog::on_check_toggle() {     display_grid_fill = !display_grid_fill;     grid_da.set_grid_draw_fill(display_grid_fill);     grid_da.refresh();}void parse_stats_dialog::on_prev_button_click() {     if((cur_pl == pf->plist->pl_begin) &&         (cur_pc == pf->plist->pl_begin->pc_begin)) {          cur_pl = pf->plist->pl_end;          cur_pc = cur_pl->pc_end;     }     else if(cur_pc == cur_pl->pc_begin) {          cur_pl = cur_pl->prev;          cur_pc = cur_pl->pc_end;     }     else          cur_pc = cur_pc->prev;     signals.do_grid_cfg_new_letter(cur_pc->self_node.self_box);     grid_da.refresh();}void parse_stats_dialog::on_next_button_click() {     if((cur_pl == pf->plist->pl_end) &&         (cur_pc == pf->plist->pl_end->pc_end)) {          cur_pl = pf->plist->pl_begin;          cur_pc = cur_pl->pc_begin;     }     else if(cur_pc == cur_pl->pc_end) {          cur_pl = cur_pl->next;          cur_pc = cur_pl->pc_begin;     }     else          cur_pc = cur_pc->next;     signals.do_grid_cfg_new_letter(cur_pc->self_node.self_box);     grid_da.refresh();}/////// profile stats:profile_stats_dialog::profile_stats_dialog(profile *p) : close_button("Close") {          set_title("Profile Stats");          // add labels:     num_chars_label.set_label("Number of characters recognized: ");     num_chars_num_label.set_label(int_to_string(NUM_TRAINED_CHARS));     num_insts_label.set_label("Total number of character instances: ");     num_insts_num_label.set_label(int_to_string(p->total_instances));     avg_insts_label.set_label("Average number of instances per character: ");     avg_insts_num_label.set_label(double_to_string((double)(p->total_instances)                                                     / NUM_TRAINED_CHARS));     insts_label.set_text("Number of instances per character: ");     // setup the combobox (sort by num_instances):     vector<profile_sort_token> insts_v;     vector<profile_sort_token>::iterator iter;     profile_sort_token token;     for(int k = 0; k < (p->character_nodes.size()); k++) {          token.character = p->character_nodes[k].character;          token.num_instances = p->character_nodes[k].num_instances;                    if(insts_v.size() == 0)               insts_v.push_back(token);          else {               iter = insts_v.begin();               for(int l = 0; l < insts_v.size(); l++) {                    if((l == 0) && (token.num_instances >                                     insts_v[l].num_instances)) {                         insts_v.insert(iter, token);                         break;                    }                    else if((l != 0) && (token.num_instances <=                                          insts_v[l - 1].num_instances) &&                            (token.num_instances >= insts_v[l].num_instances)) {                         insts_v.insert(iter, token);                         break;                    }                    else if(l == (insts_v.size() - 1)) {                         insts_v.push_back(token);                         break;                    }                    iter++;               } // for l          } // else          } // for k          for(int i = 0; i < insts_v.size(); i++) {          insts_combobox.append_text(insts_v[i].character + " (" +                            int_to_string(insts_v[i].num_instances) + " insts)");     }          insts_combobox.set_active(0);          num_chars_label_hbox.pack_start(num_chars_label, Gtk::PACK_SHRINK);     num_insts_label_hbox.pack_start(num_insts_label, Gtk::PACK_SHRINK);     avg_insts_label_hbox.pack_start(avg_insts_label, Gtk::PACK_SHRINK);     insts_label_hbox.pack_start(insts_label, Gtk::PACK_SHRINK);     num_chars_num_label_hbox.pack_start(num_chars_num_label, Gtk::PACK_SHRINK);     num_insts_num_label_hbox.pack_start(num_insts_num_label, Gtk::PACK_SHRINK);     avg_insts_num_label_hbox.pack_start(avg_insts_num_label, Gtk::PACK_SHRINK);     insts_combobox_hbox.pack_start(insts_combobox, Gtk::PACK_SHRINK);          labels_vbox.set_spacing(10);     labels_vbox.pack_start(num_chars_label_hbox, Gtk::PACK_SHRINK);     labels_vbox.pack_start(num_insts_label_hbox, Gtk::PACK_SHRINK);     labels_vbox.pack_start(avg_insts_label_hbox, Gtk::PACK_SHRINK);     labels_vbox.pack_start(insts_label_hbox, Gtk::PACK_SHRINK);     numbers_vbox.set_spacing(10);     numbers_vbox.pack_start(num_chars_num_label_hbox, Gtk::PACK_SHRINK);     numbers_vbox.pack_start(num_insts_num_label_hbox, Gtk::PACK_SHRINK);     numbers_vbox.pack_start(avg_insts_num_label_hbox, Gtk::PACK_SHRINK);     numbers_vbox.pack_start(insts_combobox_hbox, Gtk::PACK_SHRINK);     main_hbox.set_spacing(10);     main_hbox.pack_start(labels_vbox, Gtk::PACK_SHRINK);     main_hbox.pack_start(numbers_vbox, Gtk::PACK_SHRINK);     get_vbox()->set_spacing(10);     get_vbox()->pack_start(main_hbox, Gtk::PACK_SHRINK);     get_vbox()->pack_start(separator, Gtk::PACK_SHRINK);          // close button:     close_button.signal_clicked().connect(sigc::mem_fun(*this,                                  &profile_stats_dialog::on_close_button_click));          //close_buttonbox.set_layout(Gtk::BUTTONBOX_END);     close_buttonbox.pack_end(close_button, Gtk::PACK_SHRINK);     get_vbox()->pack_start(close_buttonbox, Gtk::PACK_SHRINK);          show_all_children();}void profile_stats_dialog::on_close_button_click() {     hide();}profile_name_dialog::profile_name_dialog() :                      use_new_name_button("Use New Name"),                     use_cfg_button("Use Default Config Name"),                     profile_dir_label(cfg_profile_dir),                     profile_suffix_label(".profile") {     set_title("Choose New Profile Name");     get_vbox()->set_spacing(10);                               new_name_text.set_text("default_profile");     new_name_text.set_width_chars(15);     name_hbox.pack_start(profile_dir_label, Gtk::PACK_SHRINK);     name_hbox.pack_start(new_name_text, Gtk::PACK_SHRINK);     name_hbox.pack_start(profile_suffix_label, Gtk::PACK_SHRINK);     choose_buttons.set_layout(Gtk::BUTTONBOX_DEFAULT_STYLE);     choose_buttons.pack_start(use_new_name_button, Gtk::PACK_SHRINK);     choose_buttons.pack_start(use_cfg_button);     use_new_name_button.signal_clicked().connect(sigc::mem_fun(*this,                         &profile_name_dialog::on_new_name_button_click));     use_cfg_button.signal_clicked().connect(sigc::mem_fun(*this,                    &profile_name_dialog::on_use_cfg_button_click));          get_vbox()->pack_start(name_hbox, Gtk::PACK_SHRINK);     get_vbox()->pack_start(choose_buttons, Gtk::PACK_SHRINK);     show_all_children();}                         void profile_name_dialog::on_new_name_button_click() {     new_profile_name = cfg_profile_dir + new_name_text.get_text() + ".profile";     hide();}void profile_name_dialog::on_use_cfg_button_click() {     new_profile_name = cfg_profile;     hide();}log_file_text::log_file_text() {     set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);     //set_size_request(x, y);     set_shadow_type(Gtk::SHADOW_ETCHED_IN);     add(text_view);     setup_buffer();     show_all_children();}void log_file_text::append_string(string str) {     string cur_text = buffer_ref->get_text();     cur_text = cur_text + str;     buffer_ref->set_text(cur_text);}void log_file_text::setup_buffer() {     buffer_ref = Gtk::TextBuffer::create();     text_view.set_wrap_mode(Gtk::WRAP_WORD);     text_view.set_buffer(buffer_ref);}log_file_dialog::log_file_dialog() : close_button("Close") {     set_title("View Logs");          log_text.set_size_request(LOG_TEXT_SIZE_X, LOG_TEXT_SIZE_Y);     get_vbox()->pack_start(log_text, Gtk::PACK_SHRINK);     close_buttonbox.set_layout(Gtk::BUTTONBOX_END);     close_buttonbox.pack_end(close_button, Gtk::PACK_SHRINK);     get_vbox()->pack_start(close_buttonbox, Gtk::PACK_SHRINK);     close_button.signal_clicked().connect(sigc::mem_fun(*this,                                    &log_file_dialog::on_close_click));     FILE *log_fp = fopen(cfg_log_file.c_str(), "r");     if(log_fp == NULL) {          popup_message(*this, "Error opening the log file!");          hide();          return;     }          char line_str[256];     string line;     long last_stamp_pos = 0;     while(!feof(log_fp)) {               fgets(line_str, 256, log_fp);          line = line_str;          if(line == CLASSNOTES_LOG_STAMP)               last_stamp_pos = ftell(log_fp);     }          fseek(log_fp, last_stamp_pos, SEEK_SET);          while(!feof(log_fp)) {          fgets(line_str, 256, log_fp);          line = line_str;          if(line == "\n")               continue;          else               log_text.append_string(line + "\n");     } // while     fclose(log_fp);     show_all_children();}void log_file_dialog::on_close_click() {     hide();}