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, unsigned width, unsigned height)
  38 {
  39         scores_changed.reset_flag();
  40         memset(buf, 0, width * height * 4);
  41         set_screen_size(width, height);
  42
  43         // fetch the top 5 chosen songs
  44         std::vector<TopChosen> scores;
  45         conn.perform(FetchTopChosenSongsForTournament(tournament, 5, &scores));
  46
  47         {
  48                 unsigned width = my_draw_text("Today's top 5 chosen songs", NULL, 40.0);
  49                 my_draw_text("Today's top 5 chosen songs", buf, 40.0, LOGICAL_SCREEN_WIDTH/2 - width/2, 60);
  50         }
  51
  52         // simple headings
  53         my_draw_text("Song", buf, 12.0, 70, 100);
  54         my_draw_text("Frequency", buf, 12.0, 710, 100);
  55
  56         unsigned row = 1, y = 140;
  57         for (std::vector<TopChosen>::const_iterator i = scores.begin(); i != scores.end(); ++i) {
  58                 char str[16];
  59                 unsigned r = 255, g = 255, b = 255;
  60
  61                 // print new entries in red
  62                 if (seen_topchosen.count(*i) == 0 && seen_topchosen.size() > 0) {
  63                         g = b = 0;
  64                 }
  65
  66                 std::sprintf(str, "%u", row++);
  67                 unsigned width = my_draw_text(str, NULL, 24.0);
  68                 my_draw_text(str, buf, 24.0, 30 - width/2, y);
  69
  70                 if (my_draw_text(i->title, NULL, 24.0) > 610) {
  71                         my_draw_text(i->shorttitle, buf, 24.0, 70, y, r, g, b);
  72                 } else {
  73                         my_draw_text(i->title, buf, 24.0, 70, y, r, g, b);
  74                 }
  75
  76                 std::sprintf(str, "%u", i->frequency);
  77                 width = my_draw_text(str, NULL, 24.0);
  78                 my_draw_text(str, buf, 24.0, 745 - width/2, y, r, g, b);
  79
  80                 y += 40;
  81         }
  82
  83         valid = true;
  84
  85         seen_topchosen.erase(seen_topchosen.begin(), seen_topchosen.end());
  86         std::copy(scores.begin(), scores.end(), std::inserter(seen_topchosen, seen_topchosen.end()));
  87 }
  88