ui.c

   1 /*-
   2  * "THE BEER-WARE LICENSE" (Revision 42):
   3  * <tobias.rehbein@web.de> wrote this file. As long as you retain this notice
   4  * you can do whatever you want with this stuff. If we meet some day, and you
   5  * think this stuff is worth it, you can buy me a beer in return.
   6  *                                                              Tobias Rehbein
   7  */
   8
   9 #include <assert.h>
  10 #include <curses.h>
  11 #include <err.h>
  12 #include <fcntl.h>
  13 #include <stdio.h>
  14 #include <unistd.h>
  15
  16 #include "common.h"
  17 #include "oggfile.h"
  18 #include "oggquiz.h"
  19 #include "ui.h"
  20
  21 #define RESETGUI()     do {                     \
  22                                 y = 0;          \
  23                                 clear();        \
  24                         } while (0)
  25
  26 /* Prototypes */
  27 static void     print_oggfile(struct oggfile *oggfile);
  28 static void     print_header(char const *step, struct ui_model *model);
  29
  30 /* Global variables */
  31 static int      tty;
  32 static FILE    *ftty;
  33 static SCREEN  *term;
  34 static int      y;
  35
  36 void
  37 ui_setup()
  38 {
  39         if ((tty = open("/dev/tty", O_RDONLY)) == -1)
  40                 err(1, "could not open /dev/tty");
  41         if ((ftty = fopen("/dev/tty", "r")) == NULL)
  42                 err(1, "could not open /dev/tty");
  43         if ((term = newterm(NULL, stdout, ftty)) == NULL)
  44                 errx(1, "could not create /dev/tty terminal");
  45         if (initscr() == NULL)
  46                 errx(1, "could not initialize screen");
  47         if (set_term(term) == NULL)
  48                 errx(1, "could not set /dev/tty terminal");
  49         cbreak();
  50         noecho();
  51         start_color();
  52         init_pair(1, COLOR_WHITE, COLOR_BLACK);
  53         init_pair(2, COLOR_GREEN, COLOR_BLACK);
  54         init_pair(3, COLOR_RED, COLOR_BLACK);
  55         intrflush(stdscr, FALSE);
  56 }
  57
  58 void
  59 ui_display_quiz(struct ui_model *model, struct options *opts)
  60 {
  61         int             i;
  62
  63         assert(model != NULL);
  64         assert(opts != NULL);
  65
  66         RESETGUI();
  67         print_header("new turn", model);
  68
  69         for (i = 0; i < opts->choices; i++) {
  70                 if (i % 2 == 1) {
  71                         attron(A_BOLD);
  72                 } else
  73                         attroff(A_BOLD);
  74                 mvprintw(y++, 1, "%d.  %s\n", i + 1, model->oggfiles[i].artist);
  75                 mvprintw(y++, 1, "    %s\n", model->oggfiles[i].album);
  76                 mvprintw(y++, 1, "    %s\n\n", model->oggfiles[i].title);
  77                 y++;
  78         }
  79         attroff(A_BOLD);
  80
  81         attron(A_REVERSE);
  82         mvprintw(y, 0, " What are you listening to? (1-%d, 'q' to quit) ", opts->choices);
  83         attroff(A_REVERSE);
  84
  85         refresh();
  86 }
  87
  88 void
  89 ui_display_result(struct ui_model *model, struct options *opts)
  90 {
  91         int             i;
  92
  93         assert(model != NULL);
  94         assert(opts != NULL);
  95
  96         RESETGUI();
  97         print_header("result", model);
  98
  99         if (model->correct == model->guess) {
 100                 attron(COLOR_PAIR(2));
 101                 attron(A_BOLD);
 102                 mvprintw(y++, 1, "You are right!");
 103                 attroff(A_BOLD);
 104         } else {
 105                 attron(COLOR_PAIR(3));
 106                 attron(A_BOLD);
 107                 mvprintw(y++, 1, "Sorry, you are wrong!");
 108                 attroff(A_BOLD);
 109                 y++;
 110                 mvprintw(y++, 1, "Your guess:");
 111                 y++;
 112                 print_oggfile(model->guess);
 113         }
 114         attron(COLOR_PAIR(1));
 115
 116         y++;
 117         mvprintw(y++, 1, "You are listening to:");
 118         y++;
 119         print_oggfile(model->correct);
 120         y++;
 121         attron(A_BOLD);
 122         mvprintw(y++, 1, "Scoreboard:");
 123         attroff(A_BOLD);
 124         y++;
 125         for (i = 0; i < opts->players; i++) {
 126                 if (i == model->current_player)
 127                         attron(A_BOLD);
 128                 else
 129                         attroff(A_BOLD);
 130                 mvprintw(y++, 3, "Player %d: %5d", i + 1, model->scores[i]);
 131         }
 132         attrset(A_NORMAL);
 133
 134         attron(A_REVERSE);
 135         y++;
 136         mvaddstr(y++, 0, " press any key to continue... ");
 137         attroff(A_REVERSE);
 138
 139         refresh();
 140 }
 141
 142 char
 143 ui_get_answer()
 144 {
 145         int             in;
 146
 147         in = getch();
 148
 149         return ((char)in);
 150 }
 151
 152 void
 153 ui_pause()
 154 {
 155         getch();
 156 }
 157
 158 void
 159 ui_teardown()
 160 {
 161         if (close(tty) == -1)
 162                 err(1, "could not close fd for /dev/tty");
 163         if (fclose(ftty) == EOF)
 164                 err(1, "could not close /dev/tty");
 165         delscreen(term);
 166 }
 167
 168 static void
 169 print_oggfile(struct oggfile *oggfile)
 170 {
 171         assert(oggfile !=NULL);
 172
 173         mvprintw(y++, 3, "%s", oggfile->artist);
 174         mvprintw(y++, 3, "%s", oggfile->album);
 175         mvprintw(y++, 3, "%s", oggfile->title);
 176 }
 177
 178 static void
 179 print_header(char const *step, struct ui_model *model)
 180 {
 181         assert(step != NULL);
 182         assert(model != NULL);
 183
 184         attron(A_REVERSE);
 185         mvprintw(y, 0, " %s | current turn: %03d | current player: %d ",
 186                  step, model->turn, model->current_player + 1);
 187         y += 2;
 188         attroff(A_REVERSE);
 189 }