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/**
* @file lloutputmonitorctrl.cpp
* @brief LLOutputMonitorCtrl base class
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2009, 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.
* $/LicenseInfo$
*/
#include "llviewerprecompiledheaders.h"
#include "lloutputmonitorctrl.h"
// library includes
#include "llui.h"
// viewer includes
#include "llvoiceclient.h"
static LLDefaultWidgetRegistry::Register<LLOutputMonitorCtrl> r("output_monitor");
// The defaults will be initialized in the constructor.
LLColor4 LLOutputMonitorCtrl::sColorMuted;
LLColor4 LLOutputMonitorCtrl::sColorOverdriven;
LLColor4 LLOutputMonitorCtrl::sColorNormal;
LLColor4 LLOutputMonitorCtrl::sColorBound;
S32 LLOutputMonitorCtrl::sRectsNumber = 0;
F32 LLOutputMonitorCtrl::sRectWidthRatio = 0.f;
F32 LLOutputMonitorCtrl::sRectHeightRatio = 0.f;
LLOutputMonitorCtrl::LLOutputMonitorCtrl(const LLOutputMonitorCtrl::Params& p)
: LLView(p),
mPower(0),
mIsMuted(true)
{
static LLUICachedControl<LLColor4> output_monitor_muted_color("OutputMonitorMutedColor", LLColor4::orange);
static LLUICachedControl<LLColor4> output_monitor_overdriven_color("OutputMonitorOverdrivenColor", LLColor4::red);
static LLUICachedControl<LLColor4> output_monitor_normal_color("OutputMonitorNotmalColor", LLColor4::green);
static LLUICachedControl<LLColor4> output_monitor_bound_color("OutputMonitorBoundColor", LLColor4::white);
static LLUICachedControl<S32> output_monitor_rects_number("OutputMonitorRectanglesNumber", 20);
static LLUICachedControl<F32> output_monitor_rect_width_ratio("OutputMonitorRectangleWidthRatio", 0.5f);
static LLUICachedControl<F32> output_monitor_rect_height_ratio("OutputMonitorRectangleHeightRatio", 0.8f);
// IAN BUG compare to existing pattern where these are members - some will change per-widget and need to be anyway
// sent feedback to PE
// *TODO: it looks suboptimal to load the defaults every time an output monitor is constructed.
sColorMuted = output_monitor_muted_color;
sColorOverdriven = output_monitor_overdriven_color;
sColorNormal = output_monitor_normal_color;
sColorBound = output_monitor_bound_color;
sRectsNumber = output_monitor_rects_number;
sRectWidthRatio = output_monitor_rect_width_ratio;
sRectHeightRatio = output_monitor_rect_height_ratio;
mBorder = p.draw_border;
}
LLOutputMonitorCtrl::~LLOutputMonitorCtrl()
{
}
void LLOutputMonitorCtrl::setPower(F32 val)
{
mPower = llmax(0.f, llmin(1.f, val));
}
void LLOutputMonitorCtrl::draw()
{
//
// Fill the monitor with a bunch of small rectangles.
// The rectangles will be filled with gradient color,
// beginning with sColorNormal and ending with sColorOverdriven.
//
// *TODO: would using a (partially drawn) pixmap instead be faster?
//
const int monh = getRect().getHeight();
const int monw = getRect().getWidth();
int maxrects = sRectsNumber;
const int period = llmax(1, monw / maxrects, 0, 0); // "1" - min value for the period
const int rectw = llmax(1, llfloor(period * sRectWidthRatio), 0, 0); // "1" - min value for the rect's width
const int recth = llfloor(monh * sRectHeightRatio);
if(period == 1 && rectw == 1) //if we have so small control, then "maxrects = monitor's_width - 2*monitor_border's_width
maxrects = monw-2;
const int nrects = mIsMuted ? maxrects : llfloor(mPower * maxrects); // how many rects to draw?
const int rectbtm = (monh - recth) / 2;
const int recttop = rectbtm + recth;
LLColor4 rect_color;
for (int i=1, xpos = 0; i <= nrects; i++)
{
// Calculate color to use for the current rectangle.
if (mIsMuted)
{
rect_color = sColorMuted;
}
else
{
F32 frac = (mPower * i/nrects) / LLVoiceClient::OVERDRIVEN_POWER_LEVEL;
// Use overdriven color if the power exceeds overdriven level.
if (frac > 1.0f)
frac = 1.0f;
rect_color = lerp(sColorNormal, sColorOverdriven, frac);
}
// Draw rectangle filled with the color.
gl_rect_2d(xpos, recttop, xpos+rectw, rectbtm, rect_color, TRUE);
xpos += period;
}
//
// Draw bounding box.
//
if(mBorder)
gl_rect_2d(0, monh, monw, 0, sColorBound, FALSE);
}
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