89 lines
3.2 KiB
C++
89 lines
3.2 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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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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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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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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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
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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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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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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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if (_topBarShadowEnabled) {
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p.setOpacity(1);
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p.fillRect(0, st::topBarHeight, _cacheOver.width() / retina, st::lineWidth, st::shadowFg);
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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::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([this] { animationCallback(); }, fromLeft ? 1. : 0., fromLeft ? 0. : 1., st::slideDuration, 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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