Imported existing code

indra/newview/llhudeffectpointat.h

@@ -0,0 +1,89 @@
+/** 
+ * @file llhudeffectpointat.h
+ * @brief LLHUDEffectPointAt class definition
+ *
+ * $LicenseInfo:firstyear=2002&license=viewergpl$
+ * 
+ * Copyright (c) 2002-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLHUDEFFECTPOINTAT_H
+#define LL_LLHUDEFFECTPOINTAT_H
+
+#include "llhudeffect.h"
+
+class LLViewerObject;
+class LLVOAvatar;
+
+typedef enum e_pointat_type
+{
+	POINTAT_TARGET_NONE,
+	POINTAT_TARGET_SELECT,
+	POINTAT_TARGET_GRAB,
+	POINTAT_TARGET_CLEAR,
+	POINTAT_NUM_TARGETS
+} EPointAtType;
+
+class LLHUDEffectPointAt : public LLHUDEffect
+{
+public:
+	friend class LLHUDObject;
+
+	/*virtual*/ void markDead();
+	/*virtual*/ void setSourceObject(LLViewerObject* objectp);
+
+	BOOL setPointAt(EPointAtType target_type, LLViewerObject *object, LLVector3 position);
+	void clearPointAtTarget();
+
+	EPointAtType getPointAtType() { return mTargetType; }
+	const LLVector3& getPointAtPosAgent() { return mTargetPos; }
+	const LLVector3d getPointAtPosGlobal();
+protected:
+	LLHUDEffectPointAt(const U8 type);
+	~LLHUDEffectPointAt();
+
+	/*virtual*/ void render();
+	/*virtual*/ void packData(LLMessageSystem *mesgsys);
+	/*virtual*/ void unpackData(LLMessageSystem *mesgsys, S32 blocknum);
+
+	// lookat behavior has either target position or target object with offset
+	void setTargetObjectAndOffset(LLViewerObject *objp, LLVector3d offset);
+	void setTargetPosGlobal(const LLVector3d &target_pos_global);
+	bool calcTargetPosition();
+	void update();
+public:
+	static BOOL sDebugPointAt;
+private:
+	EPointAtType				mTargetType;
+	LLVector3d					mTargetOffsetGlobal;
+	LLVector3					mLastSentOffsetGlobal;
+	F32							mKillTime;
+	LLFrameTimer				mTimer;
+	LLVector3					mTargetPos;
+	F32							mLastSendTime;
+};
+
+#endif // LL_LLHUDEFFECTPOINTAT_H