mouse ncurses dump events

mouse.c

// gcc -o mouse mouse.c -lncursesw
#include <assert.h>
#include <ncurses.h>
#include <string.h>

WINDOW *create_newwin(int height, int width, int starty, int startx)
{
  WINDOW *local_win;

  local_win = newwin(height, width, starty, startx);
  box(local_win, 0, 0);
  wrefresh(local_win);

  return local_win;
}

static void init_colours(void)
{
  start_color();

  init_pair(1, COLOR_BLACK, COLOR_RED);
  init_pair(2, COLOR_BLACK, COLOR_GREEN);
  init_pair(3, COLOR_BLACK, COLOR_YELLOW);
  init_pair(4, COLOR_BLACK, COLOR_BLUE);
  init_pair(5, COLOR_BLACK, COLOR_MAGENTA);
  init_pair(6, COLOR_BLACK, COLOR_CYAN);
  init_pair(7, COLOR_BLACK, COLOR_WHITE);
}

int main()
{
  int ch;
  mmask_t old;

  initscr();
  clear();
  noecho();
  cbreak();

  init_colours();

  WINDOW *base = create_newwin(LINES, COLS, 0, 0);
  WINDOW *win = create_newwin(LINES / 2, COLS / 2, LINES / 4, COLS / 4);

  keypad(base, true);
  scrollok(base, true);
  wrefresh(base);

  keypad(win, true);
  scrollok(win, true);
  wrefresh(win);

  mousemask(ALL_MOUSE_EVENTS | REPORT_MOUSE_POSITION, &old);

  while ((ch = wgetch(base)) != 'q')
  {
    if (ch == KEY_MOUSE)
    {
      MEVENT event;
      assert(getmouse(&event) == OK);

      if (wenclose(win, event.y, event.x))
      {
        wcolor_set(win, 2, NULL);
      }
      else
      {
        wcolor_set(win, 6, NULL);
      }
      wprintw(win, "%3dx, %3dy -- ", event.x, event.y);

      unsigned long s = event.bstate;

      // clang-format off
      if (s & BUTTON_CTRL)            { wprintw(win, "CTRL ");         s &= ~BUTTON_CTRL;            }
      if (s & BUTTON_SHIFT)           { wprintw(win, "SHIFT ");        s &= ~BUTTON_SHIFT;           }
      if (s & BUTTON_ALT)             { wprintw(win, "ALT ");          s &= ~BUTTON_ALT;             }

      if (s & BUTTON1_RELEASED)       { wprintw(win, "BUT1-release "); s &= ~BUTTON1_RELEASED;       }
      if (s & BUTTON1_PRESSED)        { wprintw(win, "BUT1-pressed "); s &= ~BUTTON1_PRESSED;        }
      if (s & BUTTON1_CLICKED)        { wprintw(win, "BUT1-clicked "); s &= ~BUTTON1_CLICKED;        }
      if (s & BUTTON1_DOUBLE_CLICKED) { wprintw(win, "BUT1-double ");  s &= ~BUTTON1_DOUBLE_CLICKED; }
      if (s & BUTTON1_TRIPLE_CLICKED) { wprintw(win, "BUT1-triple ");  s &= ~BUTTON1_TRIPLE_CLICKED; }

      if (s & BUTTON2_RELEASED)       { wprintw(win, "BUT2-release "); s &= ~BUTTON2_RELEASED;       }
      if (s & BUTTON2_PRESSED)        { wprintw(win, "BUT2-pressed "); s &= ~BUTTON2_PRESSED;        }
      if (s & BUTTON2_CLICKED)        { wprintw(win, "BUT2-clicked "); s &= ~BUTTON2_CLICKED;        }
      if (s & BUTTON2_DOUBLE_CLICKED) { wprintw(win, "BUT2-double ");  s &= ~BUTTON2_DOUBLE_CLICKED; }
      if (s & BUTTON2_TRIPLE_CLICKED) { wprintw(win, "BUT2-triple ");  s &= ~BUTTON2_TRIPLE_CLICKED; }

      if (s & BUTTON3_RELEASED)       { wprintw(win, "BUT3-release "); s &= ~BUTTON3_RELEASED;       }
      if (s & BUTTON3_PRESSED)        { wprintw(win, "BUT3-pressed "); s &= ~BUTTON3_PRESSED;        }
      if (s & BUTTON3_CLICKED)        { wprintw(win, "BUT3-clicked "); s &= ~BUTTON3_CLICKED;        }
      if (s & BUTTON3_DOUBLE_CLICKED) { wprintw(win, "BUT3-double ");  s &= ~BUTTON3_DOUBLE_CLICKED; }
      if (s & BUTTON3_TRIPLE_CLICKED) { wprintw(win, "BUT3-triple ");  s &= ~BUTTON3_TRIPLE_CLICKED; }

      if (s & BUTTON4_RELEASED)       { wprintw(win, "BUT4-release "); s &= ~BUTTON4_RELEASED;       }
      if (s & BUTTON4_PRESSED)        { wprintw(win, "BUT4-pressed "); s &= ~BUTTON4_PRESSED;        }
      if (s & BUTTON4_CLICKED)        { wprintw(win, "BUT4-clicked "); s &= ~BUTTON4_CLICKED;        }
      if (s & BUTTON4_DOUBLE_CLICKED) { wprintw(win, "BUT4-double ");  s &= ~BUTTON4_DOUBLE_CLICKED; }
      if (s & BUTTON4_TRIPLE_CLICKED) { wprintw(win, "BUT4-triple ");  s &= ~BUTTON4_TRIPLE_CLICKED; }

      if (s & 134217728)              { wprintw(win, "BUT5-pressed "); s &= ~134217728;              }
      // clang-format on

      if (s > 0)
        wprintw(win, "-- %ld", s);

      wprintw(win, "\n");
    }
    else
    {
      wprintw(win, "Key %d\n", ch);
    }
    wrefresh(win);
  }
  endwin();
}