111 lines
3.9 KiB
C++
111 lines
3.9 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 "window/window_slide_animation.h"
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#include "styles/style_window.h"
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#include "styles/style_boxes.h"
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namespace Window {
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void SlideAnimation::paintContents(Painter &p, const QRect &update) const {
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int retina = cIntRetinaFactor();
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// Animation callback can destroy "this", so we don't pass "ms".
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auto progress = _animation.current((_direction == SlideDirection::FromLeft) ? 0. : 1.);
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if (_withFade) {
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p.fillRect(update, st::boxBg);
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auto slideLeft = (_direction == SlideDirection::FromLeft);
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auto dt = slideLeft
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? (1. - progress)
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: progress;
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auto easeOut = anim::easeOutCirc(1., dt);
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auto easeIn = anim::easeInCirc(1., dt);
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auto arrivingAlpha = easeIn;
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auto departingAlpha = 1. - easeOut;
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auto leftWidthFull = _cacheUnder.width() / cIntRetinaFactor();
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auto rightWidthFull = _cacheOver.width() / cIntRetinaFactor();
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auto leftCoord = (slideLeft ? anim::interpolate(-leftWidthFull, 0, easeOut) : anim::interpolate(0, -leftWidthFull, easeIn));
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auto leftAlpha = (slideLeft ? arrivingAlpha : departingAlpha);
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auto rightCoord = (slideLeft ? anim::interpolate(0, rightWidthFull, easeIn) : anim::interpolate(rightWidthFull, 0, easeOut));
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auto rightAlpha = (slideLeft ? departingAlpha : arrivingAlpha);
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auto leftWidth = (leftWidthFull + leftCoord);
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if (leftWidth > 0) {
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p.setOpacity(leftAlpha);
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p.drawPixmap(0, 0, leftWidth, _cacheUnder.height() / retina, _cacheUnder, (_cacheUnder.width() - leftWidth * cIntRetinaFactor()), 0, leftWidth * cIntRetinaFactor(), _cacheUnder.height());
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}
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auto rightWidth = rightWidthFull - rightCoord;
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if (rightWidth > 0) {
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p.setOpacity(rightAlpha);
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p.drawPixmap(rightCoord, 0, _cacheOver, 0, 0, rightWidth * cIntRetinaFactor(), _cacheOver.height());
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}
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} else {
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auto coordUnder = anim::interpolate(0, -st::slideShift, progress);
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auto coordOver = anim::interpolate(_cacheOver.width() / cIntRetinaFactor(), 0, progress);
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if (coordOver) {
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p.drawPixmap(QRect(0, 0, coordOver, _cacheUnder.height() / retina), _cacheUnder, QRect(-coordUnder * retina, 0, coordOver * retina, _cacheUnder.height()));
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p.setOpacity(progress);
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p.fillRect(0, 0, coordOver, _cacheUnder.height() / retina, st::slideFadeOutBg);
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p.setOpacity(1);
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}
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p.drawPixmap(QRect(coordOver, 0, _cacheOver.width() / retina, _cacheOver.height() / retina), _cacheOver, QRect(0, 0, _cacheOver.width(), _cacheOver.height()));
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p.setOpacity(progress);
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st::slideShadow.fill(p, QRect(coordOver - st::slideShadow.width(), 0, st::slideShadow.width(), _cacheOver.height() / retina));
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}
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}
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void SlideAnimation::setDirection(SlideDirection direction) {
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_direction = direction;
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}
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void SlideAnimation::setPixmaps(const QPixmap &oldContentCache, const QPixmap &newContentCache) {
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_cacheUnder = oldContentCache;
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_cacheOver = newContentCache;
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}
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void SlideAnimation::setTopBarShadow(bool enabled) {
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_topBarShadowEnabled = enabled;
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}
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void SlideAnimation::setWithFade(bool withFade) {
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_withFade = withFade;
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}
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void SlideAnimation::setRepaintCallback(RepaintCallback &&callback) {
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_repaintCallback = std::move(callback);
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}
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void SlideAnimation::setFinishedCallback(FinishedCallback &&callback) {
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_finishedCallback = std::move(callback);
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}
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void SlideAnimation::start() {
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auto delta = st::slideShift;
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auto fromLeft = (_direction == SlideDirection::FromLeft);
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if (fromLeft) std::swap(_cacheUnder, _cacheOver);
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_animation.start(
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[this] { animationCallback(); },
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fromLeft ? 1. : 0.,
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fromLeft ? 0. : 1.,
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st::slideDuration,
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transition());
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_repaintCallback();
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}
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void SlideAnimation::animationCallback() {
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_repaintCallback();
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if (!_animation.animating()) {
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if (_finishedCallback) {
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_finishedCallback();
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}
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}
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}
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} // namespace Window
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