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/**
* @file llprogressbar.cpp
* @brief LLProgressBar class implementation
*
* $LicenseInfo:firstyear=2002&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "llprogressbar.h"
#include "indra_constants.h"
#include "llmath.h"
#include "llgl.h"
#include "llui.h"
#include "llfontgl.h"
#include "lltimer.h"
#include "llglheaders.h"
#include "llfocusmgr.h"
#include "lluictrlfactory.h"
#include "lluiimage.h"
static LLDefaultChildRegistry::Register<LLProgressBar> r("progress_bar");
LLProgressBar::Params::Params()
: image_bar("image_bar"),
image_fill("image_fill"),
color_bar("color_bar"),
color_bg("color_bg")
{}
LLProgressBar::LLProgressBar(const LLProgressBar::Params& p)
: LLUICtrl(p),
mImageBar(p.image_bar),
mImageFill(p.image_fill),
mColorBackground(p.color_bg()),
mColorBar(p.color_bar()),
mPercentDone(0.f)
{}
LLProgressBar::~LLProgressBar()
{
gFocusMgr.releaseFocusIfNeeded( this );
}
void LLProgressBar::draw()
{
static LLTimer timer;
F32 alpha = getDrawContext().mAlpha;
if (mImageBar) // optional according to parameters
{
LLColor4 image_bar_color = mColorBackground.get();
image_bar_color.setAlpha(alpha);
mImageBar->draw(getLocalRect(), image_bar_color);
}
if (mImageFill)
{
alpha *= 0.5f + 0.5f*0.5f*(1.f + (F32)sin(3.f*timer.getElapsedTimeF32()));
LLColor4 bar_color = mColorBar.get();
bar_color.mV[VALPHA] *= alpha; // modulate alpha
LLRect progress_rect = getLocalRect();
progress_rect.mRight = ll_round(getRect().getWidth() * (mPercentDone / 100.f));
mImageFill->draw(progress_rect, bar_color);
}
}
void LLProgressBar::setValue(const LLSD& value)
{
mPercentDone = llclamp((F32)value.asReal(), 0.f, 100.f);
}
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