From e913247fec162437920266182834aedadcb03004 Mon Sep 17 00:00:00 2001
From: Rob Landley <rob@landley.net>
Date: Tue, 31 Oct 2017 15:51:02 -0500
Subject: Rename test_*.c to demo_*.c (because "make test_$CMD" means something
 already), fluff out README, and add a comment to hostid explaining its
 deprecation.

---
 toys/example/demo_scankey.c | 80 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 toys/example/demo_scankey.c

(limited to 'toys/example/demo_scankey.c')

diff --git a/toys/example/demo_scankey.c b/toys/example/demo_scankey.c
new file mode 100644
index 00000000..db900270
--- /dev/null
+++ b/toys/example/demo_scankey.c
@@ -0,0 +1,80 @@
+/* test_scankey.c - collate incoming ansi escape sequences.
+ *
+ * Copyright 2015 Rob Landley <rob@landley.net>
+ *
+ * TODO sigwinch
+
+USE_TEST_SCANKEY(NEWTOY(test_scankey, 0, TOYFLAG_BIN))
+
+config TEST_SCANKEY
+  bool "test_scankey"
+  default n
+  help
+    usage: test_scankey
+
+    Move a letter around the screen. Hit ESC to exit.
+*/
+
+#define FOR_test_scankey
+#include "toys.h"
+
+void test_scankey_main(void)
+{
+  time_t t[2];
+  unsigned width, height, tick;
+  char c = 'X', scratch[16];
+  int key, x, y;
+
+  t[0] = t[1] = x = tick = 0;
+  memset(scratch, 0, 16);
+  y = 1;
+
+  sigatexit(tty_sigreset);  // Make ctrl-c restore tty
+  tty_esc("?25l");          // hide cursor
+  tty_esc("0m");            // reset color to default
+  tty_esc("2J");            // Clear screen
+  xset_terminal(1, 1, 0);    // Raw mode
+
+  for (;;) {
+    tty_jump(x, y);
+    xputc(c);
+    t[1&++tick] = time(0);
+    if (t[0] != t[1]) terminal_probesize(&width, &height);
+    // Don't block first time through, to force header print
+    key = scan_key_getsize(scratch, -1*!!t[0], &width, &height);
+    tty_jump(0, 0);
+    printf("ESC to exit: ");
+    // Print unknown escape sequence
+    if (*scratch) {
+      printf("key=[ESC");
+      // Fetch rest of sequence after deviation, time gap determines end
+      while (0<(key = scan_key_getsize(scratch, 0, &width, &height)))
+        printf("%c", key);
+      printf("] ");
+    } else printf("key=%d ", key);
+    printf("x=%d y=%d width=%d height=%d\033[K", x, y, width, height);
+    fflush(0);
+
+    if (key == -2) continue;
+    if (key <= ' ') break;
+    if (key>=256) {
+      tty_jump(x, y);
+      xputc(' ');
+
+      key -= 256;
+      if (key==KEY_UP) y--;
+      else if (key==KEY_DOWN) y++;
+      else if (key==KEY_RIGHT) x++;
+      else if (key==KEY_LEFT) x--;
+      else if (key==KEY_PGUP) y = 0;
+      else if (key==KEY_PGDN) y = 999;
+      else if (key==KEY_HOME) x = 0;
+      else if (key==KEY_END) x = 999;
+      if (y<1) y = 1;
+      if (y>=height) y = height-1;
+      if (x<0) x = 0;
+      if (x>=width) x = width-1;
+    } else c = key;
+  }
+  tty_reset();
+}
-- 
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