From 91fe324c7217c4a4971f8ceeddaf7999cd4408d8 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Tue, 3 Jan 2017 12:26:13 -0600
Subject: [PATCH] apps/examples/nxtext: Make line spacing configurable.

---
 examples/nxtext/Kconfig           |  9 +++++++++
 examples/nxtext/nxtext_internal.h | 11 +++++++++--
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/examples/nxtext/Kconfig b/examples/nxtext/Kconfig
index b93da3f30..b4775eceb 100644
--- a/examples/nxtext/Kconfig
+++ b/examples/nxtext/Kconfig
@@ -46,6 +46,15 @@ config EXAMPLES_NXTEXT_GLCACHE
 	---help---
 		Size of the glyph cache.
 
+config EXAMPLES_NXTEXT_LINESPACING
+	int "Line spacing"
+	default 2
+	range 0 4
+	---help---
+		The vertical distance between lines is the sum of (1) the vertical
+		bounding box dimension of the font, and (2) this additional line
+		space.  This value may be zero, but not negative.
+
 comment "Example Color Configuration"
 
 config EXAMPLES_NXTEXT_DEFAULT_COLORS
diff --git a/examples/nxtext/nxtext_internal.h b/examples/nxtext/nxtext_internal.h
index 9f535de46..dc073446c 100644
--- a/examples/nxtext/nxtext_internal.h
+++ b/examples/nxtext/nxtext_internal.h
@@ -1,7 +1,7 @@
 /****************************************************************************
  * examples/nxtext/nxtext_internal.h
  *
- *   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2011-2012, 2017 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -63,6 +63,14 @@
 #    define CONFIG_EXAMPLES_NXTEXT_VPLANE 0
 #endif
 
+/* Line spacing.  Space (in rows) between lines. */
+
+#ifdef CONFIG_EXAMPLES_NXTEXT_LINESPACING
+#  define LINE_SEPARATION CONFIG_EXAMPLES_NXTEXT_LINESPACING
+#else
+#  define LINE_SEPARATION 2
+#endif
+
 /* Pixel depth.  If none provided, pick the smallest enabled pixel depth */
 
 #ifndef CONFIG_EXAMPLES_NXTEXT_BPP
@@ -192,7 +200,6 @@
 /* Sizes and maximums */
 
 #define MAX_USECNT      255  /* Limit to range of a uint8_t */
-#define LINE_SEPARATION 2    /* Space (in rows) between lines */
 
 /****************************************************************************
  * Public Types