From 9ee7c284e63fc419f70ffc3c53eb23590767ee08 Mon Sep 17 00:00:00 2001
From: Andrew Hannam <andrewh@inmarket.com.au>
Date: Sun, 7 Apr 2013 16:02:10 +1000
Subject: Add GINPUT Dial, simplify GWIN input assignment

Added GINPUT Dial support and a driver that uses GADC to read the dial.
Added support for Dial inputs to the GWIN slider.
Updated the slider demo for Dial Inputs.
Simplified the assigning of inputs to GWIN "widgets" button and slider.
Updated the demo's to match the new input to button assignment.
---
 src/gwin/slider.c | 67 +++++++++++++++++++++++++++++++++++++++----------------
 1 file changed, 48 insertions(+), 19 deletions(-)

(limited to 'src/gwin/slider.c')

diff --git a/src/gwin/slider.c b/src/gwin/slider.c
index 034ba6b2..f535b35c 100644
--- a/src/gwin/slider.c
+++ b/src/gwin/slider.c
@@ -39,7 +39,9 @@
 	#define GWIN_SLIDER_DEAD_BAND	5
 #endif
 
-static void trackSliderDraw(GHandle gh, coord_t x, coord_t y);
+#if GFX_USE_GINPUT && GINPUT_NEED_MOUSE
+	static void trackSliderDraw(GHandle gh, coord_t x, coord_t y);
+#endif
 
 static const GSliderDrawStyle GSliderDefaultStyle = {
 	HTML2COLOR(0x404040),		// color_edge;
@@ -55,10 +57,11 @@ static void gwinSliderCallback(void *param, GEvent *pe) {
 	#define gsw		((GSliderObject *)param)
 	#define gsh		((GSourceHandle)param)
 	#define pme		((GEventMouse *)pe)
+	#define pde		((GEventDial *)pe)
 	#define pse		((GEventGWinSlider *)pe)
 
 	switch (pe->type) {
-	#if defined(GINPUT_NEED_MOUSE) && GINPUT_NEED_MOUSE
+	#if GFX_USE_GINPUT && GINPUT_NEED_MOUSE
 		case GEVENT_MOUSE:
 		case GEVENT_TOUCH:
 			// If not tracking we only only interested in a mouse down over the slider
@@ -91,10 +94,10 @@ static void gwinSliderCallback(void *param, GEvent *pe) {
 				// Set the new position
 				if (gh->width < gh->height)
 					gwinSetSliderPosition(gh,
-						(gh->height-1-pme->y+gh->y-GWIN_SLIDER_DEAD_BAND)*(gsw->max-gsw->min)/(gh->height-2*GWIN_SLIDER_DEAD_BAND) + gsw->min);
+						(uint16_t)((uint32_t)(gh->height-1-pme->y+gh->y-GWIN_SLIDER_DEAD_BAND)*(gsw->max-gsw->min)/(gh->height-2*GWIN_SLIDER_DEAD_BAND) + gsw->min));
 				else
 					gwinSetSliderPosition(gh,
-						(pme->x-gh->x-GWIN_SLIDER_DEAD_BAND)*(gsw->max-gsw->min)/(gh->width-2*GWIN_SLIDER_DEAD_BAND) + gsw->min);
+						(uint16_t)((uint32_t)(pme->x-gh->x-GWIN_SLIDER_DEAD_BAND)*(gsw->max-gsw->min)/(gh->width-2*GWIN_SLIDER_DEAD_BAND) + gsw->min));
 
 				// Update the display
 				gwinSliderDraw(gh);
@@ -109,6 +112,17 @@ static void gwinSliderCallback(void *param, GEvent *pe) {
 
 			return;
 	#endif
+	#if GFX_USE_GINPUT && GINPUT_NEED_DIAL
+		case GEVENT_DIAL:
+			// Set the new position
+			gwinSetSliderPosition(gh, (uint16_t)((uint32_t)pde->value*(gsw->max-gsw->min)/ginputGetDialRange(pde->instance) + gsw->min));
+
+			// Update the display
+			gwinSliderDraw(gh);
+
+			// Generate the event
+			break;
+	#endif
 
 	default:
 		return;
@@ -194,20 +208,22 @@ void gwinSetSliderStyle(GHandle gh, const GSliderDrawStyle *pStyle) {
 	#undef gsw
 }
 
-static void trackSliderDraw(GHandle gh, coord_t x, coord_t y) {
-	#define gsw		((GSliderObject *)gh)
+#if GFX_USE_GINPUT && GINPUT_NEED_MOUSE
+	static void trackSliderDraw(GHandle gh, coord_t x, coord_t y) {
+		#define gsw		((GSliderObject *)gh)
 
-	#if GDISP_NEED_CLIP
-		gdispSetClip(gh->x, gh->y, gh->width, gh->height);
-	#endif
-	
-	if (gh->height <= gh->width)
-		gsw->fn(gh, FALSE, x, &gsw->style, gsw->param);
-	else
-		gsw->fn(gh, TRUE, y, &gsw->style, gsw->param);
+		#if GDISP_NEED_CLIP
+			gdispSetClip(gh->x, gh->y, gh->width, gh->height);
+		#endif
 
-	#undef gbw
-}
+		if (gh->height <= gh->width)
+			gsw->fn(gh, FALSE, x, &gsw->style, gsw->param);
+		else
+			gsw->fn(gh, TRUE, y, &gsw->style, gsw->param);
+	
+		#undef gbw
+	}
+#endif
 
 void gwinSliderDraw(GHandle gh) {
 	#define gsw		((GSliderObject *)gh)
@@ -267,15 +283,28 @@ void gwinSliderDraw_Std(GHandle gh, bool_t isVertical, coord_t thumbpos, const G
 	}
 }
 
-#if defined(GINPUT_NEED_MOUSE) && GINPUT_NEED_MOUSE
-	bool_t gwinAttachSliderMouseSource(GHandle gh, GSourceHandle gsh) {
-		if (gh->type != GW_SLIDER)
+#if GFX_USE_GINPUT && GINPUT_NEED_MOUSE
+	bool_t gwinAttachSliderMouse(GHandle gh, uint16_t instance) {
+		GSourceHandle	gsh;
+
+		if (gh->type != GW_SLIDER || !(gsh = ginputGetMouse(instance)))
 			return FALSE;
 
 		return geventAttachSource(&((GSliderObject *)gh)->listener, gsh, GLISTEN_MOUSEMETA|GLISTEN_MOUSEDOWNMOVES);
 	}
 #endif
 
+#if GFX_USE_GINPUT && GINPUT_NEED_DIAL
+	bool_t gwinAttachSliderDial(GHandle gh, uint16_t instance) {
+		GSourceHandle	gsh;
+
+		if (gh->type != GW_SLIDER || !(gsh = ginputGetDial(instance)))
+			return FALSE;
+
+		return geventAttachSource(&((GSliderObject *)gh)->listener, gsh, 0);
+	}
+#endif
+
 #endif /* GFX_USE_GWIN && GWIN_NEED_BUTTON */
 /** @} */
 
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