Repatch (from linux) of OSX IRAF

1 files changed, 52 insertions, 0 deletions

diff --git a/sys/gio/stdgraph/stggcur.x b/sys/gio/stdgraph/stggcur.x
new file mode 100644
index 00000000..08f2b8b7
--- /dev/null
+++ b/sys/gio/stdgraph/stggcur.x
@@ -0,0 +1,52 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	"stdgraph.h"
+
+# STG_GETCURSOR -- Get the position of a cursor.  The cursor value is returned
+# as a GKI structure on the graphics metacode stream.
+
+procedure stg_getcursor (cursor)
+
+int	cursor			#I cursor to be read or 0
+
+int	cur, cn
+int	key, sx, sy, raster, rx, ry
+include	"stdgraph.com"
+
+begin
+	# If cursor=0 read the last cursor referenced, e.g., in a write.
+	if (cursor > 0) {
+	    SG_CURSOR(g_sg) = cursor
+	    cur = cursor
+	} else
+	    cur = max (1, SG_CURSOR(g_sg))
+
+	# Restore graphics mode in case the user has forgotten the \n while
+	# writing to the status line.
+
+	if (g_enable == NO)
+	    call stg_genab()
+
+	# If the user has locked the logical cursor override runtime selection.
+	if (g_cursor > 0)
+	    cur = g_cursor
+
+	# Restore the software cursor position before reading?
+	if (SG_UPDCURSOR(g_sg) == YES) {
+	    sx = SG_CURSOR_X(g_sg)
+	    sy = SG_CURSOR_Y(g_sg)
+	    if (sx != 0 && sy != 0)
+		call stg_setcursor (sx, sy, cur)
+	}
+
+	# Physically read the cursor and return value to caller.
+	call stg_readcursor (cur, cn, key, sx, sy, raster, rx, ry)
+	call gki_retcursorvalue (g_stream, cn, key, sx, sy, raster, rx, ry)
+	call flush (g_stream)
+
+	# Save the new position of the cursor for next time.
+	if (SG_UPDCURSOR(g_sg) == YES) {
+	    SG_CURSOR_X(g_sg) = sx
+	    SG_CURSOR_Y(g_sg) = sy
+	}
+end