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

   1 #include <cstdio>
   2 #include <algorithm>
   3
   4 #include "resolution.h"
   5 #include "top5chosenscreen.h"
   6 #include "fonts.h"
   7
   8 Top5ChosenScreen::Top5ChosenScreen(pqxx::connection &conn, unsigned tournament)
   9         : conn(conn), tournament(tournament), scores_changed(conn, "scores"), valid(false)
  10 {
  11 }
  12
  13 Top5ChosenScreen::~Top5ChosenScreen()
  14 {
  15 }
  16
  17 bool Top5ChosenScreen::check_invalidated()
  18 {
  19         if (!valid)
  20                 return true;
  21         if (!scores_changed.get_flag())
  22                 return false;
  23
  24         // check that there are indeed changes, otherwise don't bother
  25         std::vector<TopChosen> scores;
  26         conn.perform(FetchTopChosenSongsForTournament(tournament, 5, &scores));
  27
  28         for (std::vector<TopChosen>::const_iterator i = scores.begin(); i != scores.end(); ++i) {
  29                 if (seen_topchosen.count(*i) == 0) {
  30                         return true;
  31                 }
  32         }
  33
  34         return false;
  35 }
  36
  37 void Top5ChosenScreen::draw(unsigned char *buf)
  38 {
  39         scores_changed.reset_flag();
  40         memset(buf, 0, SCREEN_WIDTH * SCREEN_HEIGHT * 4);
  41
  42         // fetch the top 5 chosen songs
  43         std::vector<TopChosen> scores;
  44         conn.perform(FetchTopChosenSongsForTournament(tournament, 5, &scores));
  45
  46         {
  47                 unsigned width = my_draw_text("Today's top 5 chosen songs", NULL, 40.0);
  48                 my_draw_text("Today's top 5 chosen songs", buf, 40.0, LOGICAL_SCREEN_WIDTH/2 - width/2, 60);
  49         }
  50
  51         // simple headings
  52         my_draw_text("Song", buf, 12.0, 70, 100);
  53         my_draw_text("Frequency", buf, 12.0, 710, 100);
  54
  55         unsigned row = 1, y = 140;
  56         for (std::vector<TopChosen>::const_iterator i = scores.begin(); i != scores.end(); ++i) {
  57                 char str[16];
  58                 unsigned r = 255, g = 255, b = 255;
  59
  60                 // print new entries in red
  61                 if (seen_topchosen.count(*i) == 0 && seen_topchosen.size() > 0) {
  62                         g = b = 0;
  63                 }
  64
  65                 std::sprintf(str, "%u", row++);
  66                 unsigned width = my_draw_text(str, NULL, 24.0);
  67                 my_draw_text(str, buf, 24.0, 30 - width/2, y);
  68
  69                 if (my_draw_text(i->title, NULL, 24.0) > 610) {
  70                         my_draw_text(i->shorttitle, buf, 24.0, 70, y, r, g, b);
  71                 } else {
  72                         my_draw_text(i->title, buf, 24.0, 70, y, r, g, b);
  73                 }
  74
  75                 std::sprintf(str, "%u", i->frequency);
  76                 width = my_draw_text(str, NULL, 24.0);
  77                 my_draw_text(str, buf, 24.0, 745 - width/2, y, r, g, b);
  78
  79                 y += 40;
  80         }
  81
  82         valid = true;
  83
  84         seen_topchosen.erase(seen_topchosen.begin(), seen_topchosen.end());
  85         std::copy(scores.begin(), scores.end(), std::inserter(seen_topchosen, seen_topchosen.end()));
  86 }
  87