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 #define RANK_X 30
   9 #define SONG_X 70
  10 #define FREQUENCY_X (LOGICAL_SCREEN_WIDTH - 55)
  11 #define SONG_MAX_WIDTH (LOGICAL_SCREEN_WIDTH - 190)
  12
  13 Top5ChosenScreen::Top5ChosenScreen(pqxx::connection &conn, unsigned tournament)
  14         : conn(conn), tournament(tournament), scores_changed(conn, "scores"), valid(false)
  15 {
  16 }
  17
  18 Top5ChosenScreen::~Top5ChosenScreen()
  19 {
  20 }
  21
  22 bool Top5ChosenScreen::check_invalidated()
  23 {
  24         if (!valid)
  25                 return true;
  26         if (!scores_changed.get_flag())
  27                 return false;
  28         scores_changed.reset_flag();
  29
  30         // check that there are indeed changes, otherwise don't bother
  31         std::vector<TopChosen> scores;
  32         conn.perform(FetchTopChosenSongsForTournament(tournament, 5, &scores));
  33
  34         for (std::vector<TopChosen>::const_iterator i = scores.begin(); i != scores.end(); ++i) {
  35                 if (seen_topchosen.count(*i) == 0) {
  36                         valid = false;
  37                         return true;
  38                 }
  39         }
  40
  41         return false;
  42 }
  43
  44 void Top5ChosenScreen::draw(unsigned char *buf, unsigned width, unsigned height)
  45 {
  46         scores_changed.reset_flag();
  47         memset(buf, 0, width * height * 4);
  48         set_screen_size(width, height);
  49
  50         // fetch the top 5 chosen songs
  51         std::vector<TopChosen> scores;
  52         conn.perform(FetchTopChosenSongsForTournament(tournament, 5, &scores));
  53
  54         {
  55                 unsigned width = my_draw_text("Today's top 5 chosen songs", NULL, 40.0);
  56                 my_draw_text("Today's top 5 chosen songs", buf, 40.0, LOGICAL_SCREEN_WIDTH/2 - width/2, 60);
  57         }
  58
  59         // simple headings
  60         my_draw_text("Song", buf, 12.0, SONG_X, 100);
  61         my_draw_text("Frequency", buf, 12.0, FREQUENCY_X - 35, 100);
  62
  63         unsigned row = 1, y = 140;
  64         for (std::vector<TopChosen>::const_iterator i = scores.begin(); i != scores.end(); ++i) {
  65                 char str[16];
  66                 unsigned r = 255, g = 255, b = 255;
  67
  68                 // print new entries in red
  69                 if (seen_topchosen.count(*i) == 0 && seen_topchosen.size() > 0) {
  70                         g = b = 0;
  71                 }
  72
  73                 std::sprintf(str, "%u", row++);
  74                 unsigned width = my_draw_text(str, NULL, 24.0);
  75                 my_draw_text(str, buf, 24.0, RANK_X - width/2, y);
  76
  77                 if (my_draw_text(i->title, NULL, 24.0) > SONG_MAX_WIDTH) {
  78                         my_draw_text(i->shorttitle, buf, 24.0, SONG_X, y, r, g, b);
  79                 } else {
  80                         my_draw_text(i->title, buf, 24.0, SONG_X, y, r, g, b);
  81                 }
  82
  83                 std::sprintf(str, "%u", i->frequency);
  84                 width = my_draw_text(str, NULL, 24.0);
  85                 my_draw_text(str, buf, 24.0, FREQUENCY_X - width/2, y, r, g, b);
  86
  87                 y += 40;
  88         }
  89
  90         valid = true;
  91
  92         seen_topchosen.erase(seen_topchosen.begin(), seen_topchosen.end());
  93         std::copy(scores.begin(), scores.end(), std::inserter(seen_topchosen, seen_topchosen.end()));
  94 }
  95