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         unsigned char *ptr = buf;
  48         for (unsigned i = 0; i < width * height; ++i) {
  49                 *ptr++ = BACKGROUND_BLUE;
  50                 *ptr++ = BACKGROUND_GREEN;
  51                 *ptr++ = BACKGROUND_RED;
  52                 *ptr++ = 0;
  53         }
  54         set_screen_size(width, height);
  55
  56         // fetch the top 5 chosen songs
  57         std::vector<TopChosen> scores;
  58         conn.perform(FetchTopChosenSongsForTournament(tournament, 5, &scores));
  59
  60         {
  61                 unsigned width = my_draw_text("Today's top 5 chosen songs", NULL, 40.0);
  62                 my_draw_text("Today's top 5 chosen songs", buf, 40.0, LOGICAL_SCREEN_WIDTH/2 - width/2, 60, MAIN_HEADING_RED, MAIN_HEADING_GREEN, MAIN_HEADING_BLUE);
  63         }
  64
  65         // simple headings
  66         my_draw_text("Song", buf, 12.0, SONG_X, 100, COLUMN_HEADING_RED, COLUMN_HEADING_GREEN, COLUMN_HEADING_BLUE);
  67         width = my_draw_text("Frequency", NULL, 12.0);
  68         my_draw_text("Frequency", buf, 12.0, FREQUENCY_X - width/2, 100, COLUMN_HEADING_RED, COLUMN_HEADING_GREEN, COLUMN_HEADING_BLUE);
  69
  70         unsigned row = 1, y = 140;
  71         for (std::vector<TopChosen>::const_iterator i = scores.begin(); i != scores.end(); ++i) {
  72                 char str[16];
  73                 unsigned r = DATA_RED, g = DATA_GREEN, b = DATA_BLUE, rh = ROW_HEADING_RED, gh = ROW_HEADING_GREEN, bh = ROW_HEADING_BLUE;
  74
  75                 // print new entries in red
  76                 if (seen_topchosen.count(*i) == 0 && seen_topchosen.size() > 0) {
  77                         r = rh = FRESH_DATA_RED;
  78                         g = gh = FRESH_DATA_GREEN;
  79                         b = bh = FRESH_DATA_BLUE;
  80                 }
  81
  82                 std::sprintf(str, "%u", row++);
  83                 unsigned width = my_draw_text(str, NULL, 24.0);
  84                 my_draw_text(str, buf, 24.0, RANK_X - width/2, y, rh, gh, bh);
  85
  86                 if (my_draw_text(i->title, NULL, 24.0) > SONG_MAX_WIDTH) {
  87                         my_draw_text(i->shorttitle, buf, 24.0, SONG_X, y, r, g, b);
  88                 } else {
  89                         my_draw_text(i->title, buf, 24.0, SONG_X, y, r, g, b);
  90                 }
  91
  92                 std::sprintf(str, "%u", i->frequency);
  93                 width = my_draw_text(str, NULL, 24.0);
  94                 my_draw_text(str, buf, 24.0, FREQUENCY_X - width/2, y, r, g, b);
  95
  96                 y += 40;
  97         }
  98
  99         valid = true;
 100
 101         seen_topchosen.erase(seen_topchosen.begin(), seen_topchosen.end());
 102         std::copy(scores.begin(), scores.end(), std::inserter(seen_topchosen, seen_topchosen.end()));
 103 }
 104