List updates and add list demo - still work in progress

demos/modules/gwin/list/gfxconf.h

@@ -0,0 +1,150 @@
+/**
+ * This file has a different license to the rest of the GFX system.
+ * You can copy, modify and distribute this file as you see fit.
+ * You do not need to publish your source modifications to this file.
+ * The only thing you are not permitted to do is to relicense it
+ * under a different license.
+ */
+
+/**
+ * Copy this file into your project directory and rename it as gfxconf.h
+ * Edit your copy to turn on the GFX features you want to use.
+ */
+
+#ifndef _GFXCONF_H
+#define _GFXCONF_H
+
+/* The operating system to use - one of these must be defined */
+//#define GFX_USE_OS_CHIBIOS		FALSE
+//#define GFX_USE_OS_WIN32		FALSE
+//#define GFX_USE_OS_LINUX		TRUE
+//#define GFX_USE_OS_OSX			FALSE
+
+/* GFX subsystems to turn on */
+#define GFX_USE_GDISP			TRUE
+#define GFX_USE_TDISP			FALSE
+#define GFX_USE_GWIN			TRUE
+#define GFX_USE_GEVENT			TRUE
+#define GFX_USE_GTIMER			TRUE
+#define GFX_USE_GQUEUE			TRUE
+#define GFX_USE_GINPUT			TRUE
+#define GFX_USE_GADC			FALSE
+#define GFX_USE_GAUDIN			FALSE
+#define GFX_USE_GAUDOUT			FALSE
+#define GFX_USE_GMISC			FALSE
+
+/* Features for the GDISP subsystem */
+#define GDISP_NEED_VALIDATION		TRUE
+#define GDISP_NEED_CLIP				TRUE
+#define GDISP_NEED_TEXT				TRUE
+#define GDISP_NEED_CIRCLE			TRUE
+#define GDISP_NEED_ELLIPSE			TRUE
+#define GDISP_NEED_ARC				FALSE
+#define GDISP_NEED_CONVEX_POLYGON	FALSE
+#define GDISP_NEED_SCROLL			FALSE
+#define GDISP_NEED_PIXELREAD		FALSE
+#define GDISP_NEED_CONTROL			FALSE
+#define GDISP_NEED_QUERY			FALSE
+#define GDISP_NEED_IMAGE			FALSE
+#define GDISP_NEED_MULTITHREAD		FALSE
+#define GDISP_NEED_ASYNC			FALSE
+#define GDISP_NEED_MSGAPI			FALSE
+
+/* GDISP - builtin fonts */
+#define GDISP_INCLUDE_FONT_SMALL		FALSE
+#define GDISP_INCLUDE_FONT_LARGER		FALSE
+#define GDISP_INCLUDE_FONT_UI1			FALSE
+#define GDISP_INCLUDE_FONT_UI2			TRUE
+#define GDISP_INCLUDE_FONT_LARGENUMBERS	FALSE
+
+/* GDISP image decoders */
+#define GDISP_NEED_IMAGE_NATIVE		FALSE
+#define GDISP_NEED_IMAGE_GIF		FALSE
+#define GDISP_NEED_IMAGE_BMP		FALSE
+#define GDISP_NEED_IMAGE_JPG		FALSE
+#define GDISP_NEED_IMAGE_PNG		FALSE
+#define GDISP_NEED_IMAGE_ACCOUNTING	FALSE
+
+/* Optional image support that can be turned off */
+/*
+	#define GDISP_NEED_IMAGE_BMP_1		TRUE
+	#define GDISP_NEED_IMAGE_BMP_4		TRUE
+	#define GDISP_NEED_IMAGE_BMP_4_RLE	TRUE
+	#define GDISP_NEED_IMAGE_BMP_8		TRUE
+	#define GDISP_NEED_IMAGE_BMP_8_RLE	TRUE
+	#define GDISP_NEED_IMAGE_BMP_16		TRUE
+	#define GDISP_NEED_IMAGE_BMP_24		TRUE
+	#define GDISP_NEED_IMAGE_BMP_32		TRUE
+*/
+
+/* Features for the TDISP subsystem. */
+#define TDISP_NEED_MULTITHREAD	FALSE
+
+/* Features for the GWIN subsystem. */
+#define GWIN_NEED_WINDOWMANAGER	TRUE
+#define GWIN_NEED_CONSOLE		FALSE
+#define GWIN_NEED_GRAPH			FALSE
+#define GWIN_NEED_WIDGET		TRUE
+#define GWIN_NEED_BUTTON		FALSE
+#define GWIN_NEED_SLIDER		FALSE
+#define GWIN_NEED_CHECKBOX		FALSE
+#define GWIN_NEED_IMAGE			FALSE
+#define GWIN_NEED_RADIO			FALSE
+#define GWIN_NEED_LIST			TRUE
+
+/* Features for the GEVENT subsystem. */
+#define GEVENT_ASSERT_NO_RESOURCE	FALSE
+
+/* Features for the GTIMER subsystem. */
+/* NONE */
+
+/* Features for the GQUEUE subsystem. */
+#define GQUEUE_NEED_ASYNC		TRUE
+#define GQUEUE_NEED_GSYNC		FALSE
+#define GQUEUE_NEED_FSYNC		FALSE
+
+/* Features for the GINPUT subsystem. */
+#define GINPUT_NEED_MOUSE		TRUE
+#define GINPUT_NEED_KEYBOARD	FALSE
+#define GINPUT_NEED_TOGGLE		FALSE
+#define GINPUT_NEED_DIAL		FALSE
+
+/* Features for the GADC subsystem. */
+/* NONE */
+
+/* Features for the GAUDIN subsystem. */
+/* NONE */
+
+/* Features for the GAUDOUT subsystem. */
+/* NONE */
+
+/* Features for the GMISC subsystem. */
+#define GMISC_NEED_ARRAYOPS		FALSE
+#define GMISC_NEED_FASTTRIG		FALSE
+#define GMISC_NEED_FIXEDTRIG	FALSE
+
+/* Optional Parameters for various subsystems */
+/*
+	#define GDISP_MAX_FONT_HEIGHT			16
+	#define GEVENT_MAXIMUM_SIZE				32
+	#define GEVENT_MAX_SOURCE_LISTENERS		32
+	#define GTIMER_THREAD_WORKAREA_SIZE		512
+	#define GADC_MAX_LOWSPEED_DEVICES		4
+	#define GWIN_BUTTON_LAZY_RELEASE		FALSE
+	#define GWIN_CONSOLE_USE_BASESTREAM		FALSE
+	#define GWIN_CONSOLE_USE_FLOAT			FALSE
+	#define GWIN_NEED_IMAGE_ANIMATION		FALSE
+*/
+
+/* Optional Low Level Driver Definitions */
+/*
+	#define GDISP_USE_CUSTOM_BOARD		FALSE
+	#define GDISP_SCREEN_WIDTH			320
+	#define GDISP_SCREEN_HEIGHT			240
+	#define GDISP_USE_FSMC
+	#define GDISP_USE_GPIO
+	#define TDISP_COLUMNS				16
+	#define TDISP_ROWS					2
+*/
+
+#endif /* _GFXCONF_H */

demos/modules/gwin/list/main.c

@@ -0,0 +1,63 @@
+#include "gfx.h"
+
+static GListener gl;
+static GHandle   ghList1;
+
+static void createWidgets(void) {
+	GWidgetInit	wi;
+
+	// Apply some default values for GWIN
+	wi.customDraw = 0;
+	wi.customParam = 0;
+	wi.customStyle = 0;
+	wi.g.show = TRUE;
+
+	// Apply the list parameters
+	wi.g.width = 300;
+	wi.g.height = 200;
+	wi.g.y = 10;
+	wi.g.x = 10;
+	wi.text = "List Name";
+
+	// Create the actual list
+	ghList1 = gwinListCreate(NULL, &wi);
+}
+
+int main(void) {
+	GEvent* pe;
+
+	// Initialize the display
+	gfxInit();
+
+	// Set the widget defaults
+	gwinSetDefaultFont(gdispOpenFont("UI2"));
+	gwinSetDefaultStyle(&WhiteWidgetStyle, FALSE);
+	gdispClear(White);
+
+	// Attach the mouse input
+	gwinAttachMouse(0);
+
+	// create the widget
+	createWidgets();
+
+	// We want to listen for widget events
+	geventListenerInit(&gl);
+	gwinAttachListener(&gl);
+
+	// Add some items to the list widget
+	gwinListAddItem(ghList1, "Item 0", TRUE);
+	gwinListAddItem(ghList1, "Item 1", TRUE);
+	gwinListAddItem(ghList1, "Item 2", TRUE);
+	gwinListAddItem(ghList1, "Item 3", TRUE);
+	gwinListAddItem(ghList1, "Item 4", TRUE);
+
+	gwinRedraw(ghList1);
+
+	while(1) {
+		// Get an Event
+		pe = geventEventWait(&gl, TIME_INFINITE);
+
+	}
+
+	return 0;
+}

src/gwin/list.c

@@ -50,19 +50,7 @@ typedef struct ListItem {
 	#endif
 } ListItem;
 
-static int _getSelected(GWidgetObject *gw) {
-	gfxQueueASyncItem*	qi;
-	uint16_t i;
-
-	for(qi = gfxQueueASyncPeek(&((GListObject*)gw)->list_head), i = 0; qi; qi = gfxQueueASyncNext(qi), i++) {
-		if (((ListItem*)qi)->flags & GLIST_FLG_SELECTED)
-			return i;
-	}
-
-	return -1;
-}
-
-static void sendListEvent(GWidgetObject *gw) {
+static void sendListEvent(GWidgetObject *gw, int item) {
 	GSourceListener*	psl;
 	GEvent*				pe;
 	#define pse			((GEventGWinList *)pe)
@@ -72,11 +60,11 @@ static void sendListEvent(GWidgetObject *gw) {
 
 	while ((psl = geventGetSourceListener(GWIDGET_SOURCE, psl))) {
 		if (!(pe = geventGetEventBuffer(psl)))
-			continue
+			continue;
 
-		pse->type = GEVENT_GWIN_SLIDER;
+		pse->type = GEVENT_GWIN_LIST;
 		pse->list = (GHandle)gw;
-		pse->item = _getSelected(gw);
+		pse->item = item;
 
 		geventSendEvent(psl);
 	}
@@ -89,7 +77,7 @@ static void gwinListDefaultDraw(GWidgetObject* gw, void* param) {
 	(void)param;
 
 	uint16_t i, fheight;
-	gfxQueueASyncItem* qi;
+	const gfxQueueASyncItem* qi;
 
 	fheight = gdispGetFontMetric(gwinGetDefaultFont(), fontHeight);	
 
@@ -109,9 +97,11 @@ static void gwinListDefaultDraw(GWidgetObject* gw, void* param) {
 	// A mouse down has occured over the list area
 	static void MouseDown(GWidgetObject* gw, coord_t x, coord_t y) {
 		#define gcw			((GListObject *)gw)
+		#define li			((ListItem *)qi)
+		(void)				x;
 
 		uint16_t i, item_id, item_height;
-		gfxQueueASyncItem* qi;
+		const gfxQueueASyncItem* qi;
 
 		item_height = gdispGetFontMetric(gwinGetDefaultFont(), fontHeight) + 2;
 
@@ -119,23 +109,32 @@ static void gwinListDefaultDraw(GWidgetObject* gw, void* param) {
 
 		for(qi = gfxQueueASyncPeek(&gcw->list_head), i = 0; qi; qi = gfxQueueASyncNext(qi), i++) {
 			if (item_id == i)
-				((ListItem*)qi)->flags |= GLIST_FLG_SELECTED;
+				li->flags |= GLIST_FLG_SELECTED;
 			else
-				((ListItem*)qi)->flags &=~ GLIST_FLG_SELECTED;
+				li->flags &=~ GLIST_FLG_SELECTED;
 		}
 
 		_gwidgetRedraw((GHandle)gw);
-		sendListEvent(gw);
+		sendListEvent(gw, item_id);
 
 		#undef gcw
+		#undef li
 	}
 #endif
 
+static void _destroy(GHandle gh) {
+	const gfxQueueASyncItem* qi;
+
+	while((qi = gfxQueueASyncGet(&((GListObject *)gh)->list_head)))
+		gfxFree((void *)qi);
+	_gwidgetDestroy(gh);
+}
+
 static const gwidgetVMT listVMT = {
 	{
 		"List",					// The class name
 		sizeof(GListObject),	// The object size
-		_gwidgetDestroy,		// The destroy routine
+		_destroy,		// The destroy routine
 		_gwidgetRedraw,			// The redraw routine
 		0,						// The after-clear routine
 	},
@@ -180,43 +179,46 @@ GHandle gwinListCreate(GListObject* widget, GWidgetInit* pInit) {
 }
 
 int gwinListAddItem(GHandle gh, const char* item_name, bool_t useAlloc) {
-	ListItem* newItem;
+	size_t		sz;
+	ListItem	*newItem;
+
+	sz = useAlloc ? sizeof(ListItem)+strlen(item_name)+1 : sizeof(ListItem);
+
+	if (!(newItem = (ListItem *)gfxAlloc(sz)))
+		return -1;
 
 	if (useAlloc) {
-		newItem = gfxAlloc(sizeof(newItem) + strlen(item_name) + 1);
-
-		// allocate string
-		newItem->text = gfxAlloc(strlen(item_name) + 1);
-		if (newItem->text == NULL)
-			return -1;
-
-		// assign text
-		newItem->text = item_name;		
-
-	} else {
-		newItem = gfxAlloc(sizeof(newItem));
-
-		if (newItem == NULL)
-			return -1;
+		strcpy((char *)(newItem+1), item_name);
+		item_name = (const char *)(newItem+1);
 	}
 
 	// the item is not selected when added
-	newItem->flags &=~ GLIST_FLG_SELECTED;
+	newItem->flags = 0;
+	newItem->param = 0;
+	newItem->text = item_name;
 
 	// add the new item to the list
-	gfxQueueASyncPut(&(widget(gh)->list_head), &newItem->q_item);
+	gfxQueueASyncPut(&widget(gh)->list_head, &newItem->q_item);
 
 	// increment the total amount of entries in the list widget
 	widget(gh)->cnt++;
+
+	return widget(gh)->cnt-1;
 }
 
 int gwinListGetSelected(GHandle gh) {
-	gfxQueueASyncItem* qi;
-	uint16_t i;
+	const gfxQueueASyncItem	*qi;
+	int i;
 
-	//for(qi = gfxQueueASyncPeek(&gcw->list_head), i = 0; qi; qi = gfxQueueASyncNext(qi), i++) {
+	if (gh->vmt != (gwinVMT *)&listVMT)
+		return -1;
 
-	
+	for(qi = gfxQueueASyncPeek(&widget(gh)->list_head), i = 0; qi; qi = gfxQueueASyncNext(qi), i++) {
+		if (((ListItem*)qi)->flags & GLIST_FLG_SELECTED)
+			return i;
+	}
+
+	return -1;
 }
 
 #endif // GFX_USE_GWIN && GWIN_NEED_LIST