111 lines
3.6 KiB
C++
111 lines
3.6 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) 2014-2016 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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namespace Window {
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SlideAnimation::SlideAnimation()
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: _animation(animation(this, &SlideAnimation::step)) {
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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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_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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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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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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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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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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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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a_coordUnder.update(dt, st::slideFunction);
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a_coordOver.update(dt, st::slideFunction);
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a_progress.update(dt, st::slideFunction);
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if (timer && _repaintCallback) {
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_repaintCallback();
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}
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}
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} // namespace Window
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