110 lines
		
	
	
	
		
			3.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			110 lines
		
	
	
	
		
			3.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
 | |
| This file is part of Telegram Desktop,
 | |
| the official desktop application for the Telegram messaging service.
 | |
| 
 | |
| For license and copyright information please follow this link:
 | |
| https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 | |
| */
 | |
| #include "window/window_slide_animation.h"
 | |
| 
 | |
| #include "styles/style_window.h"
 | |
| #include "styles/style_boxes.h"
 | |
| 
 | |
| namespace Window {
 | |
| 
 | |
| void SlideAnimation::paintContents(Painter &p, const QRect &update) const {
 | |
| 	int retina = cIntRetinaFactor();
 | |
| 
 | |
| 	// Animation callback can destroy "this", so we don't pass "ms".
 | |
| 	auto progress = _animation.current((_direction == SlideDirection::FromLeft) ? 0. : 1.);
 | |
| 	if (_withFade) {
 | |
| 		p.fillRect(update, st::boxBg);
 | |
| 
 | |
| 		auto slideLeft = (_direction == SlideDirection::FromLeft);
 | |
| 		auto dt = slideLeft
 | |
| 			? (1. - progress)
 | |
| 			: progress;
 | |
| 		auto easeOut = anim::easeOutCirc(1., dt);
 | |
| 		auto easeIn = anim::easeInCirc(1., dt);
 | |
| 		auto arrivingAlpha = easeIn;
 | |
| 		auto departingAlpha = 1. - easeOut;
 | |
| 		auto leftWidthFull = _cacheUnder.width() / cIntRetinaFactor();
 | |
| 		auto rightWidthFull = _cacheOver.width() / cIntRetinaFactor();
 | |
| 		auto leftCoord = (slideLeft ? anim::interpolate(-leftWidthFull, 0, easeOut) : anim::interpolate(0, -leftWidthFull, easeIn));
 | |
| 		auto leftAlpha = (slideLeft ? arrivingAlpha : departingAlpha);
 | |
| 		auto rightCoord = (slideLeft ? anim::interpolate(0, rightWidthFull, easeIn) : anim::interpolate(rightWidthFull, 0, easeOut));
 | |
| 		auto rightAlpha = (slideLeft ? departingAlpha : arrivingAlpha);
 | |
| 
 | |
| 		auto leftWidth = (leftWidthFull + leftCoord);
 | |
| 		if (leftWidth > 0) {
 | |
| 			p.setOpacity(leftAlpha);
 | |
| 			p.drawPixmap(0, 0, leftWidth, _cacheUnder.height() / retina, _cacheUnder, (_cacheUnder.width() - leftWidth * cIntRetinaFactor()), 0, leftWidth * cIntRetinaFactor(), _cacheUnder.height());
 | |
| 		}
 | |
| 		auto rightWidth = rightWidthFull - rightCoord;
 | |
| 		if (rightWidth > 0) {
 | |
| 			p.setOpacity(rightAlpha);
 | |
| 			p.drawPixmap(rightCoord, 0, _cacheOver, 0, 0, rightWidth * cIntRetinaFactor(), _cacheOver.height());
 | |
| 		}
 | |
| 	} else {
 | |
| 		auto coordUnder = anim::interpolate(0, -st::slideShift, progress);
 | |
| 		auto coordOver = anim::interpolate(_cacheOver.width() / cIntRetinaFactor(), 0, progress);
 | |
| 		if (coordOver) {
 | |
| 			p.drawPixmap(QRect(0, 0, coordOver, _cacheUnder.height() / retina), _cacheUnder, QRect(-coordUnder * retina, 0, coordOver * retina, _cacheUnder.height()));
 | |
| 			p.setOpacity(progress);
 | |
| 			p.fillRect(0, 0, coordOver, _cacheUnder.height() / retina, st::slideFadeOutBg);
 | |
| 			p.setOpacity(1);
 | |
| 		}
 | |
| 		p.drawPixmap(QRect(coordOver, 0, _cacheOver.width() / retina, _cacheOver.height() / retina), _cacheOver, QRect(0, 0, _cacheOver.width(), _cacheOver.height()));
 | |
| 		p.setOpacity(progress);
 | |
| 		st::slideShadow.fill(p, QRect(coordOver - st::slideShadow.width(), 0, st::slideShadow.width(), _cacheOver.height() / retina));
 | |
| 	}
 | |
| }
 | |
| 
 | |
| void SlideAnimation::setDirection(SlideDirection direction) {
 | |
| 	_direction = direction;
 | |
| }
 | |
| 
 | |
| void SlideAnimation::setPixmaps(const QPixmap &oldContentCache, const QPixmap &newContentCache) {
 | |
| 	_cacheUnder = oldContentCache;
 | |
| 	_cacheOver = newContentCache;
 | |
| }
 | |
| 
 | |
| void SlideAnimation::setTopBarShadow(bool enabled) {
 | |
| 	_topBarShadowEnabled = enabled;
 | |
| }
 | |
| 
 | |
| void SlideAnimation::setWithFade(bool withFade) {
 | |
| 	_withFade = withFade;
 | |
| }
 | |
| 
 | |
| void SlideAnimation::setRepaintCallback(RepaintCallback &&callback) {
 | |
| 	_repaintCallback = std::move(callback);
 | |
| }
 | |
| 
 | |
| void SlideAnimation::setFinishedCallback(FinishedCallback &&callback) {
 | |
| 	_finishedCallback = std::move(callback);
 | |
| }
 | |
| 
 | |
| void SlideAnimation::start() {
 | |
| 	auto delta = st::slideShift;
 | |
| 	auto fromLeft = (_direction == SlideDirection::FromLeft);
 | |
| 	if (fromLeft) std::swap(_cacheUnder, _cacheOver);
 | |
| 	_animation.start(
 | |
| 		[this] { animationCallback(); },
 | |
| 		fromLeft ? 1. : 0.,
 | |
| 		fromLeft ? 0. : 1.,
 | |
| 		st::slideDuration,
 | |
| 		transition());
 | |
| 	_repaintCallback();
 | |
| }
 | |
| 
 | |
| void SlideAnimation::animationCallback() {
 | |
| 	_repaintCallback();
 | |
| 	if (!_animation.animating()) {
 | |
| 		if (_finishedCallback) {
 | |
| 			_finishedCallback();
 | |
| 		}
 | |
| 	}
 | |
| }
 | |
| 
 | |
| } // namespace Window
 | 
