From bfa7823a5e5c0c8044de9a1085bac4fc7d6b79d3 Mon Sep 17 00:00:00 2001
From: Chris Apers
Date: Wed, 12 Oct 2005 20:43:30 +0000
Subject: Added GoLCD support

svn-id: r19049
---
 backends/PalmOS/Src/init_golcd.cpp | 121 +++++++++++++++++++++++++++++++++++++
 backends/PalmOS/Src/init_golcd.h   |  22 +++++++
 2 files changed, 143 insertions(+)
 create mode 100755 backends/PalmOS/Src/init_golcd.cpp
 create mode 100755 backends/PalmOS/Src/init_golcd.h

diff --git a/backends/PalmOS/Src/init_golcd.cpp b/backends/PalmOS/Src/init_golcd.cpp
new file mode 100755
index 0000000000..63cc98e0ab
--- /dev/null
+++ b/backends/PalmOS/Src/init_golcd.cpp
@@ -0,0 +1,121 @@
+#include <PalmOS.h>
+#include <PalmGoLCD.h>
+
+#include "init_golcd.h"
+
+// you can use this handle directly
+MemHandle gGoLcdH;
+
+Err GoLCDInit(MemHandle *goLcdH) {
+	if (!goLcdH)
+		return sysErrParamErr;
+
+	Err e;
+	UInt16 refNum;
+	Boolean loaded = false;
+	*goLcdH = NULL;
+	
+	if (e = SysLibFind(goLcdLibName, &refNum))
+		loaded = !(e = SysLibLoad(goLcdLibType, goLcdLibCreator, &refNum));
+
+	if (!e)
+		if ((e = GoLcdLibOpen(refNum)))
+			SysLibRemove(refNum);
+
+	if (!e) {
+		MemHandle lcdH = MemHandleNew(sizeof(GoLCDType));
+		GoLCDType *lcdP = (GoLCDType *)MemHandleLock(lcdH);
+		MemSet(lcdP, MemHandleSize(lcdH), 0);
+		lcdP->refNum = refNum;
+		lcdP->timeout = GoLcdGetTimeout(refNum, goLcdPenTapMode);
+		MemPtrUnlock(lcdP);
+		*goLcdH = lcdH;
+	}
+
+	return e;
+}
+
+Err GoLCDRelease(MemHandle goLcdH) {
+	if (!goLcdH)
+		return sysErrParamErr;
+
+	Err e;
+	GoLCDType *lcdP = (GoLCDType *)MemHandleLock(goLcdH);
+	if (lcdP->refNum != sysInvalidRefNum)		
+		if (!(e = GoLcdLibClose(lcdP->refNum)))
+			e = SysLibRemove(lcdP->refNum);
+
+	MemPtrUnlock(lcdP);
+	MemHandleFree(goLcdH);
+
+	return e;
+}
+
+Boolean GoLCDPointInBounds(MemHandle goLcdH, Coord x, Coord y) {
+	Boolean inBounds = false;
+
+	if (!goLcdH)
+		return inBounds;
+
+	GoLCDType *lcdP = (GoLCDType *)MemHandleLock(goLcdH);
+	inBounds = (lcdP->active && RctPtInRectangle(x, y, &(lcdP->bounds)));
+	MemPtrUnlock(lcdP);
+
+	return inBounds;
+}
+
+void GoLCDSetInk(MemHandle goLcdH, RGBColorType *inkP) {
+	if (!goLcdH)
+		return;
+
+	GoLCDType *lcdP = (GoLCDType *)MemHandleLock(goLcdH);
+	MemMove(&(lcdP->ink), inkP, sizeof(RGBColorType));
+	MemPtrUnlock(lcdP);
+}
+
+void GoLCDSetBounds(MemHandle goLcdH, RectangleType *boundsP) {
+	if (!goLcdH)
+		return;
+
+	GoLCDType *lcdP = (GoLCDType *)MemHandleLock(goLcdH);
+	MemMove(&(lcdP->bounds), boundsP, sizeof(RectangleType));
+	MemPtrUnlock(lcdP);
+}
+
+void GoLCDActivate(MemHandle goLcdH, Boolean active) {
+	if (!goLcdH)
+		return;
+
+	GoLCDType *lcdP = (GoLCDType *)MemHandleLock(goLcdH);
+
+	if (active) {
+		if (!lcdP->active) {
+			lcdP->active = true;
+			GoLcdSetInkState(lcdP->refNum, goLcdInkEnabled, goLcdColorOverride, &(lcdP->ink));
+			GoLcdSetBounds(lcdP->refNum, &(lcdP->bounds));
+			GoLcdSetGsiState(lcdP->refNum, goLcdGsiNormal, goLcdColorDefault, 0);
+			GoLcdSetTimeout(lcdP->refNum, goLcdPenTapMode, lcdP->timeout);
+			GoLcdSetStatus(lcdP->refNum, goLcdEnabled);
+		}
+
+	} else {
+			lcdP->active = false;
+			GoLcdSetInkState(lcdP->refNum, goLcdInkDisabled, goLcdColorDefault, 0);
+			GoLcdSetStatus(lcdP->refNum, goLcdDisabled);
+	}
+
+	MemPtrUnlock(lcdP);
+}
+
+Boolean GoLCDToggle(MemHandle goLcdH) {
+	if (!goLcdH)
+		return;
+
+	Boolean active;
+	GoLCDType *lcdP = (GoLCDType *)MemHandleLock(goLcdH);
+	active = lcdP->active;
+	MemPtrUnlock(lcdP);
+	
+	GoLCDActivate(goLcdH, !active);
+	return (!active);
+}
diff --git a/backends/PalmOS/Src/init_golcd.h b/backends/PalmOS/Src/init_golcd.h
new file mode 100755
index 0000000000..7750a13a52
--- /dev/null
+++ b/backends/PalmOS/Src/init_golcd.h
@@ -0,0 +1,22 @@
+#ifndef INIT_GOLCD_H
+#define INIT_GOLCD_H
+
+typedef struct {
+	Boolean active;
+	UInt16 refNum;
+	RectangleType bounds;
+	RGBColorType ink;
+	UInt32 timeout;
+} GoLCDType;
+
+extern MemHandle gGoLcdH;
+
+Err GoLCDInit(MemHandle *goLcdH);
+Err GoLCDRelease(MemHandle goLcdH);
+void GoLCDSetInk(MemHandle goLcdH, RGBColorType *inkP);
+void GoLCDSetBounds(MemHandle goLcdH, RectangleType *boundsP);
+void GoLCDActivate(MemHandle goLcdH, Boolean active);
+Boolean GoLCDToggle(MemHandle goLcdH);
+Boolean GoLCDPointInBounds(MemHandle goLcdH, Coord x, Coord y);
+
+#endif
-- 
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