git.sesse.net Git - ccbs/blob - bigscreen/top5chosenscreen.cpp

   1 #include <cstdio>
   2 #include <algorithm>
   3
   4 #include "top5chosenscreen.h"
   5 #include "fonts.h"
   6
   7 Top5ChosenScreen::Top5ChosenScreen(pqxx::connection &conn, unsigned tournament)
   8         : conn(conn), tournament(tournament), scores_changed(conn, "scores"), valid(false)
   9 {
  10 }
  11
  12 Top5ChosenScreen::~Top5ChosenScreen()
  13 {
  14 }
  15
  16 bool Top5ChosenScreen::check_invalidated()
  17 {
  18         if (!valid)
  19                 return true;
  20         if (!scores_changed.get_flag())
  21                 return false;
  22
  23         // check that there are indeed changes, otherwise don't bother
  24         std::vector<TopChosen> scores;
  25         conn.perform(FetchTopChosenSongsForTournament(tournament, 5, &scores));
  26
  27         for (std::vector<TopChosen>::const_iterator i = scores.begin(); i != scores.end(); ++i) {
  28                 if (seen_topchosen.count(*i) == 0) {
  29                         return true;
  30                 }
  31         }
  32
  33         return false;
  34 }
  35
  36 void Top5ChosenScreen::draw(unsigned char *buf)
  37 {
  38         scores_changed.reset_flag();
  39         memset(buf, 0, 800 * 600 * 4);
  40
  41         // fetch the top 5 chosen songs
  42         std::vector<TopChosen> scores;
  43         conn.perform(FetchTopChosenSongsForTournament(tournament, 5, &scores));
  44
  45         {
  46                 unsigned width = my_draw_text("Today's top 5 chosen songs", NULL, 40.0);
  47                 my_draw_text("Today's top 5 chosen songs", buf, 40.0, 800/2 - width/2, 60);
  48         }
  49
  50         // simple headings
  51         my_draw_text("Song", buf, 12.0, 70, 100);
  52         my_draw_text("Frequency", buf, 12.0, 710, 100);
  53
  54         unsigned row = 1, y = 140;
  55         for (std::vector<TopChosen>::const_iterator i = scores.begin(); i != scores.end(); ++i) {
  56                 char str[16];
  57                 unsigned r = 255, g = 255, b = 255;
  58
  59                 // print new entries in red
  60                 if (seen_topchosen.count(*i) == 0 && seen_topchosen.size() > 0) {
  61                         g = b = 0;
  62                 }
  63
  64                 std::sprintf(str, "%u", row++);
  65                 unsigned width = my_draw_text(str, NULL, 24.0);
  66                 my_draw_text(str, buf, 24.0, 30 - width/2, y);
  67
  68                 if (my_draw_text(i->title, NULL, 24.0) > 610) {
  69                         my_draw_text(i->shorttitle, buf, 24.0, 70, y, r, g, b);
  70                 } else {
  71                         my_draw_text(i->title, buf, 24.0, 70, y, r, g, b);
  72                 }
  73
  74                 std::sprintf(str, "%u", i->frequency);
  75                 width = my_draw_text(str, NULL, 24.0);
  76                 my_draw_text(str, buf, 24.0, 745 - width/2, y, r, g, b);
  77
  78                 y += 40;
  79         }
  80
  81         valid = true;
  82
  83         seen_topchosen.erase(seen_topchosen.begin(), seen_topchosen.end());
  84         std::copy(scores.begin(), scores.end(), std::inserter(seen_topchosen, seen_topchosen.end()));
  85 }
  86