Initial commit

1 files changed, 48 insertions, 0 deletions

diff --git a/pkg/plot/impstatus.x b/pkg/plot/impstatus.x
new file mode 100644
index 00000000..77d56eb4
--- /dev/null
+++ b/pkg/plot/impstatus.x
@@ -0,0 +1,48 @@
+# IMPSTATUS.X -- Support routines for multiple line, scrolling status line.
+
+
+# SL_INIT -- Initialize the status lines for nlines
+
+procedure sl_init (sl, nlines)
+
+pointer	sl			# Pointer to status lines
+int	nlines			# Number of lines
+
+int	i
+
+begin
+	i = nlines * (SZ_LINE + 1)
+	if (sl == NULL)
+	    call calloc (sl, i, TY_CHAR)
+	else {
+	    call realloc (sl, i, TY_CHAR)
+	    call aclrc (Memc[sl], i)
+	}
+	Memc[sl] = nlines
+end
+
+
+# SL_FREE -- Free memory used in the status lines
+
+procedure sl_free (sl)
+
+pointer	sl			# Pointer to status lines
+
+begin
+	call mfree (sl, TY_CHAR)
+end
+
+
+# SL_GETSTR -- Get a status line string as a char pointer
+
+pointer procedure sl_getstr (sl, line)
+
+pointer	sl			# Pointer to status lines
+int	line			# Line to enter
+
+int	i
+
+begin
+	i = mod (line-1, int(Memc[sl]))
+	return (sl + i * (SZ_LINE+1) + 1)
+end