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 #include "theme.h"
   8
   9 #define RANK_X 30
  10 #define SONG_X 70
  11 #define FREQUENCY_X (LOGICAL_SCREEN_WIDTH - 55)
  12 #define SONG_MAX_WIDTH (LOGICAL_SCREEN_WIDTH - 190)
  13
  14 Top5ChosenScreen::Top5ChosenScreen(pqxx::connection &conn, unsigned tournament)
  15         : conn(conn), tournament(tournament), scores_changed(conn, "scores"), valid(false)
  16 {
  17 }
  18
  19 Top5ChosenScreen::~Top5ChosenScreen()
  20 {
  21 }
  22
  23 bool Top5ChosenScreen::check_invalidated()
  24 {
  25         if (!valid)
  26                 return true;
  27         if (!scores_changed.get_flag())
  28                 return false;
  29         scores_changed.reset_flag();
  30
  31         // check that there are indeed changes, otherwise don't bother
  32         std::vector<TopChosen> scores;
  33         conn.perform(FetchTopChosenSongsForTournament(tournament, 5, &scores));
  34
  35         for (std::vector<TopChosen>::const_iterator i = scores.begin(); i != scores.end(); ++i) {
  36                 if (seen_topchosen.count(*i) == 0) {
  37                         valid = false;
  38                         return true;
  39                 }
  40         }
  41
  42         return false;
  43 }
  44
  45 void Top5ChosenScreen::draw(unsigned char *buf, unsigned width, unsigned height)
  46 {
  47         scores_changed.reset_flag();
  48         fill_background(buf, width, height);
  49         set_screen_size(width, height);
  50
  51         // fetch the top 5 chosen songs
  52         std::vector<TopChosen> scores;
  53         conn.perform(FetchTopChosenSongsForTournament(tournament, 5, &scores));
  54
  55         {
  56                 unsigned width = my_draw_text("Today's top 5 chosen songs", NULL, 40.0, "mainheading");
  57                 my_draw_text("Today's top 5 chosen songs", buf, 40.0, "mainheading", LOGICAL_SCREEN_WIDTH/2 - width/2, 60);
  58         }
  59
  60         // simple headings
  61         my_draw_text("Song", buf, 12.0, "columnheading", SONG_X, 100);
  62         width = my_draw_text("Frequency", NULL, 12.0, "columnheading");
  63         my_draw_text("Frequency", buf, 12.0, "columnheading", FREQUENCY_X - width/2, 100);
  64
  65         unsigned row = 1, y = 140;
  66         for (std::vector<TopChosen>::const_iterator i = scores.begin(); i != scores.end(); ++i) {
  67                 char str[16];
  68                 std::string theme_element = "data";
  69                 std::string heading_theme_element = "rowheading";
  70
  71                 // print new entries in red
  72                 if (seen_topchosen.count(*i) == 0 && seen_topchosen.size() > 0) {
  73                         theme_element = "freshdata";
  74                         heading_theme_element = "freshrowheading";
  75                 }
  76
  77                 std::sprintf(str, "%u", row++);
  78                 unsigned width = my_draw_text(str, NULL, 24.0, heading_theme_element);
  79                 my_draw_text(str, buf, 24.0, heading_theme_element, RANK_X - width/2, y);
  80
  81                 if (my_draw_text(i->title, NULL, 24.0, theme_element) > SONG_MAX_WIDTH) {
  82                         my_draw_text(i->shorttitle, buf, 24.0, theme_element, SONG_X, y);
  83                 } else {
  84                         my_draw_text(i->title, buf, 24.0, theme_element, SONG_X, y);
  85                 }
  86
  87                 std::sprintf(str, "%u", i->frequency);
  88                 width = my_draw_text(str, NULL, 24.0, theme_element);
  89                 my_draw_text(str, buf, 24.0, theme_element, FREQUENCY_X - width/2, y);
  90
  91                 y += 40;
  92         }
  93
  94         valid = true;
  95
  96         seen_topchosen.erase(seen_topchosen.begin(), seen_topchosen.end());
  97         std::copy(scores.begin(), scores.end(), std::inserter(seen_topchosen, seen_topchosen.end()));
  98 }
  99