110 lines
		
	
	
	
		
			3.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			110 lines
		
	
	
	
		
			3.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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| This file is part of Telegram Desktop,
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| the official desktop version of Telegram messaging app, see https://telegram.org
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| 
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| Telegram Desktop is free software: you can redistribute it and/or modify
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| it under the terms of the GNU General Public License as published by
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| the Free Software Foundation, either version 3 of the License, or
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| (at your option) any later version.
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| 
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| It is distributed in the hope that it will be useful,
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| but WITHOUT ANY WARRANTY; without even the implied warranty of
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| GNU General Public License for more details.
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| 
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| In addition, as a special exception, the copyright holders give permission
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| to link the code of portions of this program with the OpenSSL library.
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| 
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| Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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| Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
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| */
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| #include "stdafx.h"
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| #include "window/slide_animation.h"
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| 
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| namespace Window {
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| 
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| SlideAnimation::SlideAnimation()
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| 	: _animation(animation(this, &SlideAnimation::step)) {
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| }
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| 
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| void SlideAnimation::paintContents(Painter &p, const QRect &update) const {
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| 	int retina = cIntRetinaFactor();
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| 
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| 	_animation.step(getms());
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| 	if (a_coordOver.current() > 0) {
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| 		p.drawPixmap(QRect(0, 0, a_coordOver.current(), _cacheUnder.height() / retina), _cacheUnder, QRect(-a_coordUnder.current() * retina, 0, a_coordOver.current() * retina, _cacheUnder.height()));
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| 		p.setOpacity(a_progress.current());
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| 		p.fillRect(0, 0, a_coordOver.current(), _cacheUnder.height() / retina, st::slideFadeOutBg);
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| 		p.setOpacity(1);
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| 	}
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| 	p.drawPixmap(QRect(a_coordOver.current(), 0, _cacheOver.width() / retina, _cacheOver.height() / retina), _cacheOver, QRect(0, 0, _cacheOver.width(), _cacheOver.height()));
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| 	p.setOpacity(a_progress.current());
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| 	st::slideShadow.fill(p, QRect(a_coordOver.current() - st::slideShadow.width(), 0, st::slideShadow.width(), _cacheOver.height() / retina));
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| 
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| 	if (_topBarShadowEnabled) {
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| 		p.setOpacity(1);
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| 		p.fillRect(0, st::topBarHeight, _cacheOver.width() / retina, st::lineWidth, st::shadowColor);
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| 	}
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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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| 
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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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| 
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| void SlideAnimation::setTopBarShadow(bool enabled) {
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| 	_topBarShadowEnabled = enabled;
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| }
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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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| 
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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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| 
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| void SlideAnimation::start() {
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| 	int delta = st::slideShift;
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| 	if (_direction == SlideDirection::FromLeft) {
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| 		a_progress = anim::fvalue(1, 0);
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| 		std::swap(_cacheUnder, _cacheOver);
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| 		a_coordUnder = anim::ivalue(-delta, 0);
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| 		a_coordOver = anim::ivalue(0, _cacheOver.width() / cIntRetinaFactor());
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| 	} else {
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| 		a_progress = anim::fvalue(0, 1);
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| 		a_coordUnder = anim::ivalue(0, -delta);
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| 		a_coordOver = anim::ivalue(_cacheOver.width() / cIntRetinaFactor(), 0);
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| 	}
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| 	_animation.start();
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| }
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| 
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| void SlideAnimation::step(float64 ms, bool timer) {
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| 	float64 dt = ms / st::slideDuration;
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| 	if (dt >= 1) {
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| 		dt = 1;
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| 		if (timer) {
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| 			_animation.stop();
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| 			a_coordUnder.finish();
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| 			a_coordOver.finish();
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| 
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| 			if (_finishedCallback) {
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| 				_finishedCallback();
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| 			}
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| 			return;
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| 		}
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| 	}
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| 
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| 	a_coordUnder.update(dt, transition());
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| 	a_coordOver.update(dt, transition());
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| 	a_progress.update(dt, transition());
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| 	if (timer && _repaintCallback) {
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| 		_repaintCallback();
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| 	}
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| }
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| 
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| } // namespace Window
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