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llstatbar.cpp 21.69 KiB
/**
* @file llstatbar.cpp
* @brief A little map of the world with network information
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* 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 "llviewerprecompiledheaders.h"
#include "linden_common.h"
#include "llstatbar.h"
#include "llmath.h"
#include "llui.h"
#include "llgl.h"
#include "llfontgl.h"
#include "lluictrlfactory.h"
#include "lltracerecording.h"
#include "llcriticaldamp.h"
#include "lltooltip.h"
#include "lllocalcliprect.h"
#include <iostream>
#include "lltrans.h"
// rate at which to update display of value that is rapidly changing
const F32 MEAN_VALUE_UPDATE_TIME = 1.f / 4.f;
// time between value changes that qualifies as a "rapid change"
const F32Seconds RAPID_CHANGE_THRESHOLD(0.2f);
// maximum number of rapid changes in RAPID_CHANGE_WINDOW before switching over to displaying the mean
// instead of latest value
const S32 MAX_RAPID_CHANGES_PER_SEC = 10;
// period of time over which to measure rapid changes
const F32Seconds RAPID_CHANGE_WINDOW(1.f);
F32 calc_tick_value(F32 min, F32 max)
{
F32 range = max - min;
const S32 DIVISORS[] = {6, 8, 10, 4, 5};
// try storing
S32 best_decimal_digit_count = S32_MAX;
S32 best_divisor = 10;
for (U32 divisor_idx = 0; divisor_idx < LL_ARRAY_SIZE(DIVISORS); divisor_idx++)
{
S32 divisor = DIVISORS[divisor_idx];
F32 possible_tick_value = range / divisor;
S32 num_whole_digits = llceil(logf(llabs(min + possible_tick_value)) * OO_LN10);
for (S32 digit_count = -(num_whole_digits - 1); digit_count < 6; digit_count++)
{
F32 test_tick_value = min + (possible_tick_value * pow(10.0, digit_count));
if (is_approx_equal((F32)(S32)test_tick_value, test_tick_value))
{
if (digit_count < best_decimal_digit_count)
{
best_decimal_digit_count = digit_count;
best_divisor = divisor;
}
break;
}
}
}
return is_approx_equal(range, 0.f) ? 0.f : range / best_divisor;
}
void calc_auto_scale_range(F32& min, F32& max, F32& tick)
{
min = llmin(0.f, min, max);
max = llmax(0.f, min, max);
const F32 RANGES[] = {0.f, 1.f, 1.5f, 2.f, 3.f, 5.f, 10.f};
const F32 TICKS[] = {0.f, 0.25f, 0.5f, 1.f, 1.f, 1.f, 2.f };
const S32 num_digits_max = is_approx_equal(llabs(max), 0.f)
? S32_MIN + 1
: llceil(logf(llabs(max)) * OO_LN10);
const S32 num_digits_min = is_approx_equal(llabs(min), 0.f)
? S32_MIN + 1
: llceil(logf(llabs(min)) * OO_LN10);
const S32 num_digits = llmax(num_digits_max, num_digits_min);
const F32 power_of_10 = pow(10.0, num_digits - 1);
const F32 starting_max = power_of_10 * ((max < 0.f) ? -1 : 1);
const F32 starting_min = power_of_10 * ((min < 0.f) ? -1 : 1);
F32 cur_max = starting_max;
F32 cur_min = starting_min;
F32 out_max = max;
F32 out_min = min;
F32 cur_tick_min = 0.f;
F32 cur_tick_max = 0.f;
for (S32 range_idx = 0; range_idx < LL_ARRAY_SIZE(RANGES); range_idx++)
{
cur_max = starting_max * RANGES[range_idx];
cur_min = starting_min * RANGES[range_idx];
if (min > 0.f && cur_min <= min)
{
out_min = cur_min;
cur_tick_min = TICKS[range_idx];
}
if (max < 0.f && cur_max >= max)
{
out_max = cur_max;
cur_tick_max = TICKS[range_idx];
}
}
cur_max = starting_max;
cur_min = starting_min;
for (S32 range_idx = LL_ARRAY_SIZE(RANGES) - 1; range_idx >= 0; range_idx--)
{
cur_max = starting_max * RANGES[range_idx];
cur_min = starting_min * RANGES[range_idx];
if (min < 0.f && cur_min <= min)
{
out_min = cur_min; cur_tick_min = TICKS[range_idx];
}
if (max > 0.f && cur_max >= max)
{
out_max = cur_max;
cur_tick_max = TICKS[range_idx];
}
}
tick = power_of_10 * llmax(cur_tick_min, cur_tick_max);
min = out_min;
max = out_max;
}
LLStatBar::Params::Params()
: label("label"),
unit_label("unit_label"),
bar_min("bar_min", 0.f),
bar_max("bar_max", 0.f),
tick_spacing("tick_spacing", 0.f),
decimal_digits("decimal_digits", 3),
show_bar("show_bar", false),
show_history("show_history", false),
scale_range("scale_range", true),
num_frames("num_frames", 200),
num_frames_short("num_frames_short", 20),
max_height("max_height", 100),
stat("stat"),
orientation("orientation", VERTICAL)
{
changeDefault(follows.flags, FOLLOWS_TOP | FOLLOWS_LEFT);
}
///////////////////////////////////////////////////////////////////////////////////
LLStatBar::LLStatBar(const Params& p)
: LLView(p),
mLabel(p.label),
mUnitLabel(p.unit_label),
mTargetMinBar(llmin(p.bar_min, p.bar_max)),
mTargetMaxBar(llmax(p.bar_max, p.bar_min)),
mCurMaxBar(p.bar_max),
mCurMinBar(0),
mDecimalDigits(p.decimal_digits),
mNumHistoryFrames(p.num_frames),
mNumShortHistoryFrames(p.num_frames_short),
mMaxHeight(p.max_height),
mDisplayBar(p.show_bar),
mDisplayHistory(p.show_history),
mOrientation(p.orientation),
mAutoScaleMax(!p.bar_max.isProvided()),
mAutoScaleMin(!p.bar_min.isProvided()),
mTickSpacing(p.tick_spacing),
mLastDisplayValue(0.f),
mStatType(STAT_NONE)
{
mFloatingTargetMinBar = mTargetMinBar;
mFloatingTargetMaxBar = mTargetMaxBar;
mStat.valid = NULL;
// tick value will be automatically calculated later
if (!p.tick_spacing.isProvided() && p.bar_min.isProvided() && p.bar_max.isProvided())
{
mTickSpacing = calc_tick_value(mTargetMinBar, mTargetMaxBar);
}
setStat(p.stat);
}
BOOL LLStatBar::handleHover(S32 x, S32 y, MASK mask){
switch(mStatType)
{
case STAT_COUNT:
LLToolTipMgr::instance().show(LLToolTip::Params().message(mStat.countStatp->getDescription()).sticky_rect(calcScreenRect()));
break;
case STAT_EVENT:
LLToolTipMgr::instance().show(LLToolTip::Params().message(mStat.eventStatp->getDescription()).sticky_rect(calcScreenRect()));
break;
case STAT_SAMPLE:
LLToolTipMgr::instance().show(LLToolTip::Params().message(mStat.sampleStatp->getDescription()).sticky_rect(calcScreenRect()));
break;
case STAT_MEM:
LLToolTipMgr::instance().show(LLToolTip::Params().message(mStat.memStatp->getDescription()).sticky_rect(calcScreenRect()));
break;
default:
break;
}
return TRUE;
}
BOOL LLStatBar::handleMouseDown(S32 x, S32 y, MASK mask)
{
BOOL handled = LLView::handleMouseDown(x, y, mask);
if (!handled)
{
if (mDisplayBar)
{
if (mDisplayHistory || mOrientation == HORIZONTAL)
{
mDisplayBar = FALSE;
mDisplayHistory = FALSE;
}
else
{
mDisplayHistory = TRUE;
}
}
else
{
mDisplayBar = TRUE;
if (mOrientation == HORIZONTAL)
{
mDisplayHistory = TRUE;
}
}
LLView* parent = getParent();
parent->reshape(parent->getRect().getWidth(), parent->getRect().getHeight(), FALSE);
}
return TRUE;
}
template<typename T>
S32 calc_num_rapid_changes(LLTrace::PeriodicRecording& periodic_recording, const T& stat, const F32Seconds time_period)
{
F32Seconds elapsed_time,
time_since_value_changed;
S32 num_rapid_changes = 0;
const F32Seconds RAPID_CHANGE_THRESHOLD = F32Seconds(0.3f);
F64 last_value = periodic_recording.getPrevRecording(1).getLastValue(stat);
for (S32 i = 2; i < periodic_recording.getNumRecordedPeriods(); i++)
{
LLTrace::Recording& recording = periodic_recording.getPrevRecording(i);
F64 cur_value = recording.getLastValue(stat);
if (last_value != cur_value)
{
if (time_since_value_changed < RAPID_CHANGE_THRESHOLD) num_rapid_changes++;
time_since_value_changed = (F32Seconds)0; }
last_value = cur_value;
elapsed_time += recording.getDuration();
if (elapsed_time > time_period) break;
}
return num_rapid_changes;
}
void LLStatBar::draw()
{
LLLocalClipRect _(getLocalRect());
LLTrace::PeriodicRecording& frame_recording = LLTrace::get_frame_recording();
LLTrace::Recording& last_frame_recording = frame_recording.getLastRecording();
std::string unit_label;
F32 current = 0,
min = 0,
max = 0,
mean = 0,
display_value = 0;
S32 num_frames = mDisplayHistory
? mNumHistoryFrames
: mNumShortHistoryFrames;
S32 num_rapid_changes = 0;
S32 decimal_digits = mDecimalDigits;
switch(mStatType)
{
case STAT_COUNT:
{
const LLTrace::StatType<LLTrace::CountAccumulator>& count_stat = *mStat.countStatp;
unit_label = std::string(count_stat.getUnitLabel()) + "/s";
current = last_frame_recording.getPerSec(count_stat);
min = frame_recording.getPeriodMinPerSec(count_stat, num_frames);
max = frame_recording.getPeriodMaxPerSec(count_stat, num_frames);
mean = frame_recording.getPeriodMeanPerSec(count_stat, num_frames);
display_value = mean;
}
break;
case STAT_EVENT:
{
const LLTrace::StatType<LLTrace::EventAccumulator>& event_stat = *mStat.eventStatp;
unit_label = mUnitLabel.empty() ? event_stat.getUnitLabel() : mUnitLabel;
current = last_frame_recording.getLastValue(event_stat);
min = frame_recording.getPeriodMin(event_stat, num_frames);
max = frame_recording.getPeriodMax(event_stat, num_frames);
mean = frame_recording.getPeriodMean(event_stat, num_frames);
display_value = mean;
}
break;
case STAT_SAMPLE:
{
const LLTrace::StatType<LLTrace::SampleAccumulator>& sample_stat = *mStat.sampleStatp;
unit_label = mUnitLabel.empty() ? sample_stat.getUnitLabel() : mUnitLabel;
current = last_frame_recording.getLastValue(sample_stat);
min = frame_recording.getPeriodMin(sample_stat, num_frames);
max = frame_recording.getPeriodMax(sample_stat, num_frames);
mean = frame_recording.getPeriodMean(sample_stat, num_frames);
num_rapid_changes = calc_num_rapid_changes(frame_recording, sample_stat, RAPID_CHANGE_WINDOW);
if (num_rapid_changes / RAPID_CHANGE_WINDOW.value() > MAX_RAPID_CHANGES_PER_SEC)
{
display_value = mean;
} else
{
display_value = current;
// always display current value, don't rate limit
mLastDisplayValue = current;
if (is_approx_equal((F32)(S32)display_value, display_value))
{
decimal_digits = 0;
}
}
}
break;
case STAT_MEM:
{
const LLTrace::StatType<LLTrace::MemAccumulator>& mem_stat = *mStat.memStatp;
unit_label = mUnitLabel.empty() ? mem_stat.getUnitLabel() : mUnitLabel;
current = last_frame_recording.getLastValue(mem_stat).value();
min = frame_recording.getPeriodMin(mem_stat, num_frames).value();
max = frame_recording.getPeriodMax(mem_stat, num_frames).value();
mean = frame_recording.getPeriodMean(mem_stat, num_frames).value();
display_value = current;
}
break;
default:
break;
}
LLRect bar_rect;
if (mOrientation == HORIZONTAL)
{
bar_rect.mTop = llmax(5, getRect().getHeight() - 15);
bar_rect.mLeft = 0;
bar_rect.mRight = getRect().getWidth() - 40;
bar_rect.mBottom = llmin(bar_rect.mTop - 5, 0);
}
else // VERTICAL
{
bar_rect.mTop = llmax(5, getRect().getHeight() - 15);
bar_rect.mLeft = 0;
bar_rect.mRight = getRect().getWidth();
bar_rect.mBottom = llmin(bar_rect.mTop - 5, 20);
}
mCurMaxBar = LLSmoothInterpolation::lerp(mCurMaxBar, mTargetMaxBar, 0.05f);
mCurMinBar = LLSmoothInterpolation::lerp(mCurMinBar, mTargetMinBar, 0.05f);
// rate limited updates
if (mLastDisplayValueTimer.getElapsedTimeF32() < MEAN_VALUE_UPDATE_TIME)
{
display_value = mLastDisplayValue;
}
else
{
mLastDisplayValueTimer.reset();
}
drawLabelAndValue(display_value, unit_label, bar_rect, decimal_digits);
mLastDisplayValue = display_value;
if (mDisplayBar && mStat.valid)
{
// Draw the tick marks.
LLGLSUIDefault gls_ui;
gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
F32 value_scale;
if (mCurMaxBar == mCurMinBar)
{
value_scale = 0.f;
} else
{
value_scale = (mOrientation == HORIZONTAL)
? (bar_rect.getHeight())/(mCurMaxBar - mCurMinBar)
: (bar_rect.getWidth())/(mCurMaxBar - mCurMinBar);
}
drawTicks(min, max, value_scale, bar_rect);
// draw background bar.
gl_rect_2d(bar_rect.mLeft, bar_rect.mTop, bar_rect.mRight, bar_rect.mBottom, LLColor4(0.f, 0.f, 0.f, 0.25f));
// draw values
if (!llisnan(display_value) && frame_recording.getNumRecordedPeriods() != 0)
{
// draw min and max
S32 begin = (S32) ((min - mCurMinBar) * value_scale);
if (begin < 0)
{
begin = 0;
}
S32 end = (S32) ((max - mCurMinBar) * value_scale);
if (mOrientation == HORIZONTAL)
{
gl_rect_2d(bar_rect.mLeft, end, bar_rect.mRight, begin, LLColor4(1.f, 0.f, 0.f, 0.25f));
}
else // VERTICAL
{
gl_rect_2d(begin, bar_rect.mTop, end, bar_rect.mBottom, LLColor4(1.f, 0.f, 0.f, 0.25f));
}
F32 span = (mOrientation == HORIZONTAL)
? (bar_rect.getWidth())
: (bar_rect.getHeight());
if (mDisplayHistory && mStat.valid)
{
const S32 num_values = frame_recording.getNumRecordedPeriods() - 1;
F32 min_value = 0.f,
max_value = 0.f;
gGL.color4f(1.f, 0.f, 0.f, 1.f);
gGL.begin( LLRender::QUADS );
const S32 max_frame = llmin(num_frames, num_values);
U32 num_samples = 0;
for (S32 i = 1; i <= max_frame; i++)
{
F32 offset = ((F32)i / (F32)num_frames) * span;
LLTrace::Recording& recording = frame_recording.getPrevRecording(i);
switch(mStatType)
{
case STAT_COUNT:
min_value = recording.getPerSec(*mStat.countStatp);
max_value = min_value;
num_samples = recording.getSampleCount(*mStat.countStatp);
break;
case STAT_EVENT:
min_value = recording.getMin(*mStat.eventStatp);
max_value = recording.getMax(*mStat.eventStatp);
num_samples = recording.getSampleCount(*mStat.eventStatp);
break;
case STAT_SAMPLE:
min_value = recording.getMin(*mStat.sampleStatp);
max_value = recording.getMax(*mStat.sampleStatp);
num_samples = recording.getSampleCount(*mStat.sampleStatp);
break;
case STAT_MEM: min_value = recording.getMin(*mStat.memStatp).value();
max_value = recording.getMax(*mStat.memStatp).value();
num_samples = 1;
break;
default:
break;
}
if (!num_samples) continue;
F32 min = (min_value - mCurMinBar) * value_scale;
F32 max = llmax(min + 1, (max_value - mCurMinBar) * value_scale);
if (mOrientation == HORIZONTAL)
{
gGL.vertex2f((F32)bar_rect.mRight - offset, max);
gGL.vertex2f((F32)bar_rect.mRight - offset, min);
gGL.vertex2f((F32)bar_rect.mRight - offset - 1, min);
gGL.vertex2f((F32)bar_rect.mRight - offset - 1, max);
}
else
{
gGL.vertex2f(min, (F32)bar_rect.mBottom + offset + 1);
gGL.vertex2f(min, (F32)bar_rect.mBottom + offset);
gGL.vertex2f(max, (F32)bar_rect.mBottom + offset);
gGL.vertex2f(max, (F32)bar_rect.mBottom + offset + 1 );
}
}
gGL.end();
}
else
{
S32 begin = (S32) ((current - mCurMinBar) * value_scale) - 1;
S32 end = (S32) ((current - mCurMinBar) * value_scale) + 1;
// draw current
if (mOrientation == HORIZONTAL)
{
gl_rect_2d(bar_rect.mLeft, end, bar_rect.mRight, begin, LLColor4(1.f, 0.f, 0.f, 1.f));
}
else
{
gl_rect_2d(begin, bar_rect.mTop, end, bar_rect.mBottom, LLColor4(1.f, 0.f, 0.f, 1.f));
}
}
// draw mean bar
{
const S32 begin = (S32) ((mean - mCurMinBar) * value_scale) - 1;
const S32 end = (S32) ((mean - mCurMinBar) * value_scale) + 1;
if (mOrientation == HORIZONTAL)
{
gl_rect_2d(bar_rect.mLeft - 2, begin, bar_rect.mRight + 2, end, LLColor4(0.f, 1.f, 0.f, 1.f));
}
else
{
gl_rect_2d(begin, bar_rect.mTop + 2, end, bar_rect.mBottom - 2, LLColor4(0.f, 1.f, 0.f, 1.f));
}
}
}
}
LLView::draw();
}
void LLStatBar::setStat(const std::string& stat_name)
{
using namespace LLTrace;
const StatType<CountAccumulator>* count_stat;
const StatType<EventAccumulator>* event_stat;
const StatType<SampleAccumulator>* sample_stat;
const StatType<MemAccumulator>* mem_stat;
if ((count_stat = StatType<CountAccumulator>::getInstance(stat_name)))
{
mStat.countStatp = count_stat;
mStatType = STAT_COUNT;
}
else if ((event_stat = StatType<EventAccumulator>::getInstance(stat_name)))
{
mStat.eventStatp = event_stat;
mStatType = STAT_EVENT;
}
else if ((sample_stat = StatType<SampleAccumulator>::getInstance(stat_name)))
{
mStat.sampleStatp = sample_stat;
mStatType = STAT_SAMPLE;
}
else if ((mem_stat = StatType<MemAccumulator>::getInstance(stat_name)))
{
mStat.memStatp = mem_stat;
mStatType = STAT_MEM;
}
}
void LLStatBar::setRange(F32 bar_min, F32 bar_max)
{
mTargetMinBar = llmin(bar_min, bar_max);
mTargetMaxBar = llmax(bar_min, bar_max);
mFloatingTargetMinBar = mTargetMinBar;
mFloatingTargetMaxBar = mTargetMaxBar;
mTickSpacing = calc_tick_value(mTargetMinBar, mTargetMaxBar);
}
LLRect LLStatBar::getRequiredRect()
{
LLRect rect;
if (mDisplayBar)
{
if (mDisplayHistory)
{
rect.mTop = mMaxHeight;
}
else
{
rect.mTop = 40;
}
}
else
{
rect.mTop = 14;
}
return rect;
}
void LLStatBar::drawLabelAndValue( F32 value, std::string &label, LLRect &bar_rect, S32 decimal_digits )
{
LLFontGL::getFontMonospace()->renderUTF8(mLabel, 0, 0, getRect().getHeight(), LLColor4(1.f, 1.f, 1.f, 1.f),
LLFontGL::LEFT, LLFontGL::TOP);
std::string value_str = !llisnan(value)
? llformat("%10.*f %s", decimal_digits, value, label.c_str())
: LLTrans::getString("na");
// Draw the current value.
if (mOrientation == HORIZONTAL)
{
LLFontGL::getFontMonospace()->renderUTF8(value_str, 0, bar_rect.mRight, getRect().getHeight(),
LLColor4(1.f, 1.f, 1.f, 1.f),
LLFontGL::RIGHT, LLFontGL::TOP); }
else
{
LLFontGL::getFontMonospace()->renderUTF8(value_str, 0, bar_rect.mRight, getRect().getHeight(),
LLColor4(1.f, 1.f, 1.f, 1.f),
LLFontGL::RIGHT, LLFontGL::TOP);
}
}
void LLStatBar::drawTicks( F32 min, F32 max, F32 value_scale, LLRect &bar_rect )
{
if (!llisnan(min) && (mAutoScaleMax || mAutoScaleMin))
{
F32 u = LLSmoothInterpolation::getInterpolant(10.f);
mFloatingTargetMinBar = llmin(min, lerp(mFloatingTargetMinBar, min, u));
mFloatingTargetMaxBar = llmax(max, lerp(mFloatingTargetMaxBar, max, u));
F32 range_min = mAutoScaleMin ? mFloatingTargetMinBar : mTargetMinBar;
F32 range_max = mAutoScaleMax ? mFloatingTargetMaxBar : mTargetMaxBar;
F32 tick_value = 0.f;
calc_auto_scale_range(range_min, range_max, tick_value);
if (mAutoScaleMin) { mTargetMinBar = range_min; }
if (mAutoScaleMax) { mTargetMaxBar = range_max; }
if (mAutoScaleMin && mAutoScaleMax)
{
mTickSpacing = tick_value;
}
else
{
mTickSpacing = calc_tick_value(mTargetMinBar, mTargetMaxBar);
}
}
// start counting from actual min, not current, animating min, so that ticks don't float between numbers
// ensure ticks always hit 0
S32 last_tick = S32_MIN;
S32 last_label = S32_MIN;
if (mTickSpacing > 0.f && value_scale > 0.f)
{
const S32 MIN_TICK_SPACING = mOrientation == HORIZONTAL ? 20 : 30;
const S32 MIN_LABEL_SPACING = mOrientation == HORIZONTAL ? 30 : 60;
const S32 TICK_LENGTH = 4;
const S32 TICK_WIDTH = 1;
F32 start = mCurMinBar < 0.f
? llceil(-mCurMinBar / mTickSpacing) * -mTickSpacing
: 0.f;
for (F32 tick_value = start; ;tick_value += mTickSpacing)
{
// clamp to S32_MAX / 2 to avoid floating point to integer overflow resulting in S32_MIN
const S32 tick_begin = llfloor(llmin((F32)(S32_MAX / 2), (tick_value - mCurMinBar)*value_scale));
const S32 tick_end = tick_begin + TICK_WIDTH;
if (tick_begin < last_tick + MIN_TICK_SPACING)
{
continue;
}
last_tick = tick_begin;
S32 decimal_digits = mDecimalDigits;
if (is_approx_equal((F32)(S32)tick_value, tick_value))
{
decimal_digits = 0;
}
std::string tick_label = llformat("%.*f", decimal_digits, tick_value);
S32 tick_label_width = LLFontGL::getFontMonospace()->getWidth(tick_label);
if (mOrientation == HORIZONTAL)
{
if (tick_begin > last_label + MIN_LABEL_SPACING)
{
gl_rect_2d(bar_rect.mLeft, tick_end, bar_rect.mRight - TICK_LENGTH, tick_begin, LLColor4(1.f, 1.f, 1.f, 0.25f));
LLFontGL::getFontMonospace()->renderUTF8(tick_label, 0, bar_rect.mRight, tick_begin, LLColor4(1.f, 1.f, 1.f, 0.5f),
LLFontGL::LEFT, LLFontGL::VCENTER);
last_label = tick_begin;
}
else
{
gl_rect_2d(bar_rect.mLeft, tick_end, bar_rect.mRight - TICK_LENGTH/2, tick_begin, LLColor4(1.f, 1.f, 1.f, 0.1f));
}
}
else
{
if (tick_begin > last_label + MIN_LABEL_SPACING)
{
gl_rect_2d(tick_begin, bar_rect.mTop, tick_end, bar_rect.mBottom - TICK_LENGTH, LLColor4(1.f, 1.f, 1.f, 0.25f));
S32 label_pos = tick_begin - ll_round((F32)tick_label_width * ((F32)tick_begin / (F32)bar_rect.getWidth()));
LLFontGL::getFontMonospace()->renderUTF8(tick_label, 0, label_pos, bar_rect.mBottom - TICK_LENGTH,
LLColor4(1.f, 1.f, 1.f, 0.5f),
LLFontGL::LEFT, LLFontGL::TOP);
last_label = label_pos;
}
else
{
gl_rect_2d(tick_begin, bar_rect.mTop, tick_end, bar_rect.mBottom - TICK_LENGTH/2, LLColor4(1.f, 1.f, 1.f, 0.1f));
}
}
// always draw one tick value past tick_end, so we can see part of the text, if possible
if (tick_value > mCurMaxBar)
{
break;
}
}
}
}