From a4ca308dd51bb780ead1e2388bffe391fcef5659 Mon Sep 17 00:00:00 2001
From: Joel Bodenmann <joel@unormal.org>
Date: Mon, 27 May 2013 12:53:34 +0200
Subject: [PATCH] added slider enable/disable API

---
 include/gwin/slider.h | 24 ++++++++++++++++++++++++
 src/gwin/slider.c     |  7 +++++++
 2 files changed, 31 insertions(+)

diff --git a/include/gwin/slider.h b/include/gwin/slider.h
index c22dc5f4..9a51d042 100644
--- a/include/gwin/slider.h
+++ b/include/gwin/slider.h
@@ -141,6 +141,16 @@ void gwinSetSliderStyle(GHandle gh, const GSliderDrawStyle *pStyle);
  */
 void gwinSliderDraw(GHandle gh);
 
+/**
+ * @brief	Enable or disable a button
+ *
+ * @param[in] gh		The window handle (must be a slider window)
+ * @param[in] enabled	Enable or disable the slider
+ *
+ * @api
+ */
+void gwinSliderSetEnabled(GHandle gh, bool_t enabled);
+
 /**
  * @brief   Set the callback routine to perform a custom slider drawing.
  *
@@ -152,6 +162,20 @@ void gwinSliderDraw(GHandle gh);
  */
 void gwinSetSliderCustom(GHandle gh, GSliderDrawFunction fn, void *param);
 
+/**
+ * @brief	Enable a slider
+ *
+ * @api
+ */
+#define gwinEnableSlider(gh)			gwinSetSliderEnabled( ((GSliderObject *)(gh)), TRUE)
+
+/**
+ * @brief	Disable a slider
+ *
+ * @api
+ */
+#define gwinDisableSlider(gh)			gwinSetSliderEnabled( ((GSliderObject *)(gh)), FALSE)
+
 /**
  * @brief   Get the current slider position.
  * @return	The slider position
diff --git a/src/gwin/slider.c b/src/gwin/slider.c
index 7f1e36bc..1f252d77 100644
--- a/src/gwin/slider.c
+++ b/src/gwin/slider.c
@@ -241,6 +241,13 @@ void gwinSetSliderCustom(GHandle gh, GSliderDrawFunction fn, void *param) {
 	#undef gsw
 }
 
+void gwinSliderSetEnabled(GHandle gh, bool_t enabled) {
+	if (gh->type != GW_SLIDER)
+		return;
+
+	gh->enabled = enabled;
+}
+
 void gwinSliderDraw_Std(GHandle gh, bool_t isVertical, coord_t thumbpos, const GSliderDrawStyle *pstyle, void *param) {
 	(void) param;