268 lines
8.1 KiB
C++
268 lines
8.1 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "ui/widgets/continuous_sliders.h"
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namespace Ui {
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namespace {
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constexpr auto kByWheelFinishedTimeout = 1000;
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} // namespace
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ContinuousSlider::ContinuousSlider(QWidget *parent) : RpWidget(parent) {
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setCursor(style::cur_pointer);
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}
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void ContinuousSlider::setDisabled(bool disabled) {
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if (_disabled != disabled) {
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_disabled = disabled;
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setCursor(_disabled ? style::cur_default : style::cur_pointer);
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update();
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}
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}
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void ContinuousSlider::setMoveByWheel(bool move) {
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if (move != moveByWheel()) {
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if (move) {
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_byWheelFinished = std::make_unique<SingleTimer>();
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_byWheelFinished->setTimeoutHandler([this] {
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if (_changeFinishedCallback) {
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_changeFinishedCallback(getCurrentValue());
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}
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});
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} else {
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_byWheelFinished.reset();
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}
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}
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}
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void ContinuousSlider::setValue(float64 value) {
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_value = value;
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update();
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}
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void ContinuousSlider::setFadeOpacity(float64 opacity) {
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_fadeOpacity = opacity;
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update();
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}
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void ContinuousSlider::mouseMoveEvent(QMouseEvent *e) {
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if (_mouseDown) {
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updateDownValueFromPos(e->pos());
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}
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}
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float64 ContinuousSlider::computeValue(const QPoint &pos) const {
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const auto seekRect = myrtlrect(getSeekRect());
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const auto result = isHorizontal() ?
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(pos.x() - seekRect.x()) / float64(seekRect.width()) :
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(1. - (pos.y() - seekRect.y()) / float64(seekRect.height()));
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const auto snapped = snap(result, 0., 1.);
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return _adjustCallback ? _adjustCallback(snapped) : snapped;
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}
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void ContinuousSlider::mousePressEvent(QMouseEvent *e) {
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_mouseDown = true;
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_downValue = computeValue(e->pos());
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update();
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if (_changeProgressCallback) {
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_changeProgressCallback(_downValue);
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}
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}
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void ContinuousSlider::mouseReleaseEvent(QMouseEvent *e) {
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if (_mouseDown) {
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_mouseDown = false;
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if (_changeFinishedCallback) {
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_changeFinishedCallback(_downValue);
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}
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_value = _downValue;
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update();
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}
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}
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void ContinuousSlider::wheelEvent(QWheelEvent *e) {
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if (_mouseDown || !moveByWheel()) {
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return;
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}
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#ifdef OS_MAC_OLD
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constexpr auto step = 120;
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#else // OS_MAC_OLD
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constexpr auto step = static_cast<int>(QWheelEvent::DefaultDeltasPerStep);
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#endif // OS_MAC_OLD
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constexpr auto coef = 1. / (step * 10.);
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auto deltaX = e->angleDelta().x(), deltaY = e->angleDelta().y();
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if (cPlatform() == dbipMac || cPlatform() == dbipMacOld) {
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deltaY *= -1;
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} else {
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deltaX *= -1;
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}
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auto delta = (qAbs(deltaX) > qAbs(deltaY)) ? deltaX : deltaY;
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auto finalValue = snap(_value + delta * coef, 0., 1.);
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setValue(finalValue);
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if (_changeProgressCallback) {
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_changeProgressCallback(finalValue);
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}
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_byWheelFinished->start(kByWheelFinishedTimeout);
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}
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void ContinuousSlider::updateDownValueFromPos(const QPoint &pos) {
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_downValue = computeValue(pos);
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update();
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if (_changeProgressCallback) {
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_changeProgressCallback(_downValue);
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}
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}
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void ContinuousSlider::enterEventHook(QEvent *e) {
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setOver(true);
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}
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void ContinuousSlider::leaveEventHook(QEvent *e) {
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setOver(false);
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}
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void ContinuousSlider::setOver(bool over) {
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if (_over == over) return;
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_over = over;
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auto from = _over ? 0. : 1., to = _over ? 1. : 0.;
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_a_over.start([this] { update(); }, from, to, getOverDuration());
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}
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FilledSlider::FilledSlider(QWidget *parent, const style::FilledSlider &st) : ContinuousSlider(parent)
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, _st(st) {
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}
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QRect FilledSlider::getSeekRect() const {
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return QRect(0, 0, width(), height());
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}
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float64 FilledSlider::getOverDuration() const {
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return _st.duration;
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}
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void FilledSlider::paintEvent(QPaintEvent *e) {
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Painter p(this);
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PainterHighQualityEnabler hq(p);
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p.setPen(Qt::NoPen);
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auto masterOpacity = fadeOpacity();
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auto ms = getms();
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auto disabled = isDisabled();
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auto over = getCurrentOverFactor(ms);
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auto lineWidth = _st.lineWidth + ((_st.fullWidth - _st.lineWidth) * over);
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auto lineWidthRounded = qFloor(lineWidth);
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auto lineWidthPartial = lineWidth - lineWidthRounded;
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auto seekRect = getSeekRect();
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auto value = getCurrentValue();
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auto from = seekRect.x(), mid = qRound(from + value * seekRect.width()), end = from + seekRect.width();
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if (mid > from) {
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p.setOpacity(masterOpacity);
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p.fillRect(from, height() - lineWidthRounded, (mid - from), lineWidthRounded, disabled ? _st.disabledFg : _st.activeFg);
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if (lineWidthPartial > 0.01) {
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p.setOpacity(masterOpacity * lineWidthPartial);
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p.fillRect(from, height() - lineWidthRounded - 1, (mid - from), 1, disabled ? _st.disabledFg : _st.activeFg);
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}
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}
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if (end > mid && over > 0) {
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p.setOpacity(masterOpacity * over);
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p.fillRect(mid, height() - lineWidthRounded, (end - mid), lineWidthRounded, _st.inactiveFg);
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if (lineWidthPartial > 0.01) {
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p.setOpacity(masterOpacity * over * lineWidthPartial);
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p.fillRect(mid, height() - lineWidthRounded - 1, (end - mid), 1, _st.inactiveFg);
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}
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}
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}
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MediaSlider::MediaSlider(QWidget *parent, const style::MediaSlider &st) : ContinuousSlider(parent)
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, _st(st) {
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}
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QRect MediaSlider::getSeekRect() const {
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return isHorizontal()
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? QRect(_st.seekSize.width() / 2, 0, width() - _st.seekSize.width(), height())
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: QRect(0, _st.seekSize.height() / 2, width(), height() - _st.seekSize.width());
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}
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float64 MediaSlider::getOverDuration() const {
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return _st.duration;
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}
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void MediaSlider::disablePaint(bool disabled) {
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_paintDisabled = disabled;
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}
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void MediaSlider::paintEvent(QPaintEvent *e) {
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if (_paintDisabled) {
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return;
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}
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Painter p(this);
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PainterHighQualityEnabler hq(p);
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p.setPen(Qt::NoPen);
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p.setOpacity(fadeOpacity());
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auto horizontal = isHorizontal();
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auto ms = getms();
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auto radius = _st.width / 2;
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auto disabled = isDisabled();
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auto over = getCurrentOverFactor(ms);
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auto seekRect = getSeekRect();
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auto value = getCurrentValue();
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// invert colors and value for vertical
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if (!horizontal) value = 1. - value;
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auto markerFrom = (horizontal ? seekRect.x() : seekRect.y());
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auto markerLength = (horizontal ? seekRect.width() : seekRect.height());
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auto from = _alwaysDisplayMarker ? 0 : markerFrom;
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auto length = _alwaysDisplayMarker ? (horizontal ? width() : height()) : markerLength;
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auto mid = qRound(from + value * length);
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auto end = from + length;
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auto activeFg = disabled ? _st.activeFgDisabled : anim::brush(_st.activeFg, _st.activeFgOver, over);
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auto inactiveFg = disabled ? _st.inactiveFgDisabled : anim::brush(_st.inactiveFg, _st.inactiveFgOver, over);
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if (mid > from) {
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auto fromClipRect = horizontal ? QRect(0, 0, mid, height()) : QRect(0, 0, width(), mid);
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const auto till = std::min(mid + radius, end);
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auto fromRect = horizontal
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? QRect(from, (height() - _st.width) / 2, till - from, _st.width)
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: QRect((width() - _st.width) / 2, from, _st.width, till - from);
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p.setClipRect(fromClipRect);
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p.setBrush(horizontal ? activeFg : inactiveFg);
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p.drawRoundedRect(fromRect, radius, radius);
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}
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if (end > mid) {
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auto endClipRect = horizontal ? QRect(mid, 0, width() - mid, height()) : QRect(0, mid, width(), height() - mid);
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const auto begin = std::max(mid - radius, from);
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auto endRect = horizontal
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? QRect(begin, (height() - _st.width) / 2, end - begin, _st.width)
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: QRect((width() - _st.width) / 2, begin, _st.width, end - begin);
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p.setClipRect(endClipRect);
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p.setBrush(horizontal ? inactiveFg : activeFg);
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p.drawRoundedRect(endRect, radius, radius);
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}
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auto markerSizeRatio = disabled ? 0. : (_alwaysDisplayMarker ? 1. : over);
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if (markerSizeRatio > 0) {
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auto position = qRound(markerFrom + value * markerLength) - (horizontal ? seekRect.x() : seekRect.y());
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auto seekButton = horizontal
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? QRect(position, (height() - _st.seekSize.height()) / 2, _st.seekSize.width(), _st.seekSize.height())
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: QRect((width() - _st.seekSize.width()) / 2, position, _st.seekSize.width(), _st.seekSize.height());
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auto size = horizontal ? _st.seekSize.width() : _st.seekSize.height();
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auto remove = static_cast<int>(((1. - markerSizeRatio) * size) / 2.);
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if (remove * 2 < size) {
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p.setClipRect(rect());
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p.setBrush(activeFg);
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p.drawEllipse(seekButton.marginsRemoved(QMargins(remove, remove, remove, remove)));
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}
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}
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}
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} // namespace Ui
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