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#include "circularindicatormanager.hpp"
#include <qeasingcurve.h>
#include <qpoint.h>
namespace {
namespace advance {
constexpr qint32 TOTAL_CYCLES = 4;
constexpr qint32 TOTAL_DURATION_IN_MS = 5400;
constexpr qint32 DURATION_TO_EXPAND_IN_MS = 667;
constexpr qint32 DURATION_TO_COLLAPSE_IN_MS = 667;
constexpr qint32 DURATION_TO_COMPLETE_END_IN_MS = 333;
constexpr qint32 TAIL_DEGREES_OFFSET = -20;
constexpr qint32 EXTRA_DEGREES_PER_CYCLE = 250;
constexpr qint32 CONSTANT_ROTATION_DEGREES = 1520;
constexpr std::array<qint32, TOTAL_CYCLES> DELAY_TO_EXPAND_IN_MS = { 0, 1350, 2700, 4050 };
constexpr std::array<qint32, TOTAL_CYCLES> DELAY_TO_COLLAPSE_IN_MS = { 667, 2017, 3367, 4717 };
} // namespace advance
namespace retreat {
constexpr qint32 TOTAL_DURATION_IN_MS = 6000;
constexpr qint32 DURATION_SPIN_IN_MS = 500;
constexpr qint32 DURATION_GROW_ACTIVE_IN_MS = 3000;
constexpr qint32 DURATION_SHRINK_ACTIVE_IN_MS = 3000;
constexpr std::array DELAY_SPINS_IN_MS = { 0, 1500, 3000, 4500 };
constexpr qint32 DELAY_GROW_ACTIVE_IN_MS = 0;
constexpr qint32 DELAY_SHRINK_ACTIVE_IN_MS = 3000;
constexpr qint32 DURATION_TO_COMPLETE_END_IN_MS = 500;
// Constants for animation values.
// The total degrees that a constant rotation goes by.
constexpr qint32 CONSTANT_ROTATION_DEGREES = 1080;
// Despite of the constant rotation, there are also 5 extra rotations the entire animation. The
// total degrees that each extra rotation goes by.
constexpr qint32 SPIN_ROTATION_DEGREES = 90;
constexpr std::array<qreal, 2> END_FRACTION_RANGE = { 0.10, 0.87 };
} // namespace retreat
inline qreal getFractionInRange(qreal playtime, qreal start, qreal duration) {
const auto fraction = (playtime - start) / duration;
return std::clamp(fraction, 0.0, 1.0);
}
} // namespace
namespace caelestia {
CircularIndicatorManager::CircularIndicatorManager(QObject* parent)
: QObject(parent)
, m_type(IndeterminateAnimationType::Advance)
, m_curve(QEasingCurve(QEasingCurve::BezierSpline))
, m_progress(0)
, m_startFraction(0)
, m_endFraction(0)
, m_rotation(0)
, m_completeEndProgress(0) {
// Fast out slow in
m_curve.addCubicBezierSegment({ 0.4, 0.0 }, { 0.2, 1.0 }, { 1.0, 1.0 });
}
qreal CircularIndicatorManager::startFraction() const {
return m_startFraction;
}
qreal CircularIndicatorManager::endFraction() const {
return m_endFraction;
}
qreal CircularIndicatorManager::rotation() const {
return m_rotation;
}
qreal CircularIndicatorManager::progress() const {
return m_progress;
}
void CircularIndicatorManager::setProgress(qreal progress) {
update(progress);
}
qreal CircularIndicatorManager::duration() const {
if (m_type == IndeterminateAnimationType::Advance) {
return advance::TOTAL_DURATION_IN_MS;
} else {
return retreat::TOTAL_DURATION_IN_MS;
}
}
qreal CircularIndicatorManager::completeEndDuration() const {
if (m_type == IndeterminateAnimationType::Advance) {
return advance::DURATION_TO_COMPLETE_END_IN_MS;
} else {
return retreat::DURATION_TO_COMPLETE_END_IN_MS;
}
}
CircularIndicatorManager::IndeterminateAnimationType CircularIndicatorManager::indeterminateAnimationType() const {
return m_type;
}
void CircularIndicatorManager::setIndeterminateAnimationType(IndeterminateAnimationType t) {
if (m_type != t) {
m_type = t;
emit indeterminateAnimationTypeChanged();
}
}
qreal CircularIndicatorManager::completeEndProgress() const {
return m_completeEndProgress;
}
void CircularIndicatorManager::setCompleteEndProgress(qreal progress) {
if (qFuzzyCompare(m_completeEndProgress + 1.0, progress + 1.0)) {
return;
}
m_completeEndProgress = progress;
emit completeEndProgressChanged();
update(m_progress);
}
void CircularIndicatorManager::update(qreal progress) {
if (qFuzzyCompare(m_progress + 1.0, progress + 1.0)) {
return;
}
if (m_type == IndeterminateAnimationType::Advance) {
updateAdvance(progress);
} else {
updateRetreat(progress);
}
m_progress = progress;
emit progressChanged();
}
void CircularIndicatorManager::updateRetreat(qreal progress) {
using namespace retreat;
const auto playtime = progress * TOTAL_DURATION_IN_MS;
// Constant rotation.
const qreal constantRotation = CONSTANT_ROTATION_DEGREES * progress;
// Extra rotation for the faster spinning.
qreal spinRotation = 0;
for (const int spinDelay : DELAY_SPINS_IN_MS) {
spinRotation += m_curve.valueForProgress(getFractionInRange(playtime, spinDelay, DURATION_SPIN_IN_MS)) *
SPIN_ROTATION_DEGREES;
}
m_rotation = constantRotation + spinRotation;
emit rotationChanged();
// Grow active indicator.
qreal fraction =
m_curve.valueForProgress(getFractionInRange(playtime, DELAY_GROW_ACTIVE_IN_MS, DURATION_GROW_ACTIVE_IN_MS));
fraction -=
m_curve.valueForProgress(getFractionInRange(playtime, DELAY_SHRINK_ACTIVE_IN_MS, DURATION_SHRINK_ACTIVE_IN_MS));
if (!qFuzzyIsNull(m_startFraction)) {
m_startFraction = 0.0;
emit startFractionChanged();
}
const auto oldEndFrac = m_endFraction;
m_endFraction = std::lerp(END_FRACTION_RANGE[0], END_FRACTION_RANGE[1], fraction);
// Completing animation.
if (m_completeEndProgress > 0) {
m_endFraction *= 1 - m_completeEndProgress;
}
if (!qFuzzyCompare(m_endFraction + 1.0, oldEndFrac + 1.0)) {
emit endFractionChanged();
}
}
void CircularIndicatorManager::updateAdvance(qreal progress) {
using namespace advance;
const auto playtime = progress * TOTAL_DURATION_IN_MS;
// Adds constant rotation to segment positions.
m_startFraction = CONSTANT_ROTATION_DEGREES * progress + TAIL_DEGREES_OFFSET;
m_endFraction = CONSTANT_ROTATION_DEGREES * progress;
// Adds cycle specific rotation to segment positions.
for (size_t cycleIndex = 0; cycleIndex < TOTAL_CYCLES; ++cycleIndex) {
// While expanding.
qreal fraction = getFractionInRange(playtime, DELAY_TO_EXPAND_IN_MS[cycleIndex], DURATION_TO_EXPAND_IN_MS);
m_endFraction += m_curve.valueForProgress(fraction) * EXTRA_DEGREES_PER_CYCLE;
// While collapsing.
fraction = getFractionInRange(playtime, DELAY_TO_COLLAPSE_IN_MS[cycleIndex], DURATION_TO_COLLAPSE_IN_MS);
m_startFraction += m_curve.valueForProgress(fraction) * EXTRA_DEGREES_PER_CYCLE;
}
// Closes the gap between head and tail for complete end.
m_startFraction += (m_endFraction - m_startFraction) * m_completeEndProgress;
m_startFraction /= 360.0;
m_endFraction /= 360.0;
emit startFractionChanged();
emit endFractionChanged();
}
} // namespace caelestia
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