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/**
* @file llloadingindicator.h
* @brief Perpetual loading indicator
*
* $LicenseInfo:firstyear=2010&license=viewergpl$
*
* Copyright (c) 2010, 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_LLLOADINGINDICATOR_H
#define LL_LLLOADINGINDICATOR_H
#include "lluictrl.h"
///////////////////////////////////////////////////////////////////////////////
// class LLLoadingIndicator
///////////////////////////////////////////////////////////////////////////////
/**
* Perpetual loading indicator (a la MacOSX or YouTube)
*
* Number of rotations per second can be overriden
* with the "roations_per_sec" parameter.
*
* Can start/stop spinning.
*
* @see start()
* @see stop()
*/
class LLLoadingIndicator
: public LLUICtrl
{
LOG_CLASS(LLLoadingIndicator);
public:
struct Params : public LLInitParam::Block<Params, LLUICtrl::Params>
{
Optional<F32> rotations_per_sec;
Params()
: rotations_per_sec("rotations_per_sec", 1.0f)
{}
};
virtual ~LLLoadingIndicator() {}
// llview overrides
virtual void draw();
/**
* Stop spinning.
*/
void stop();
/**
* Start spinning.
*/
void start();
private:
LLLoadingIndicator(const Params&);
friend class LLUICtrlFactory;
class Data;
F32 mRotationsPerSec;
S8 mCurImageIdx;
LLPointer<LLUIImage> mCurImagep;
LLFrameTimer mImageSwitchTimer;
};
#endif // LL_LLLOADINGINDICATOR_H
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