229 lines
9.3 KiB
C++
229 lines
9.3 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 "ui/effects/round_image_checkbox.h"
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namespace Ui {
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namespace {
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static constexpr int kWideScale = 4;
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void prepareCheckCaches(const style::RoundImageCheckbox *st, QPixmap &checkBgCache, QPixmap &checkFullCache) {
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auto size = st->checkRadius * 2;
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auto wideSize = size * kWideScale;
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auto cache = QImage(wideSize * cIntRetinaFactor(), wideSize * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
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cache.setDevicePixelRatio(cRetinaFactor());
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{
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Painter p(&cache);
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p.setCompositionMode(QPainter::CompositionMode_Source);
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p.fillRect(0, 0, wideSize, wideSize, Qt::transparent);
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p.setCompositionMode(QPainter::CompositionMode_SourceOver);
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p.setRenderHint(QPainter::HighQualityAntialiasing, true);
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auto pen = st->checkBorder->p;
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pen.setWidth(st->selectWidth);
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p.setPen(pen);
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p.setBrush(st->checkBg);
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auto ellipse = QRect((wideSize - size) / 2, (wideSize - size) / 2, size, size);
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p.drawEllipse(ellipse);
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}
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auto cacheIcon = cache;
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{
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Painter p(&cacheIcon);
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auto ellipse = QRect((wideSize - size) / 2, (wideSize - size) / 2, size, size);
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st->checkIcon.paint(p, ellipse.topLeft(), wideSize);
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}
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checkBgCache = App::pixmapFromImageInPlace(std_::move(cache));
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checkBgCache.setDevicePixelRatio(cRetinaFactor());
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checkFullCache = App::pixmapFromImageInPlace(std_::move(cacheIcon));
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checkFullCache.setDevicePixelRatio(cRetinaFactor());
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}
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struct AnimBumpy {
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AnimBumpy(float64 bump) : bump(bump)
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, dt0(bump - sqrt(bump * (bump - 1.)))
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, k(1 / (2 * dt0 - 1)) {
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}
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float64 bump;
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float64 dt0;
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float64 k;
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};
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template <int BumpRatioPercent>
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float64 anim_bumpy(const float64 &delta, const float64 &dt) {
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static AnimBumpy data = { BumpRatioPercent / 100. };
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return delta * (data.bump - data.k * (dt - data.dt0) * (dt - data.dt0));
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}
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} // namespace
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RoundImageCheckbox::RoundImageCheckbox(const style::RoundImageCheckbox &st, UpdateCallback &&updateCallback, PaintRoundImage &&paintRoundImage)
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: _st(st)
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, _updateCallback(std_::move(updateCallback))
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, _paintRoundImage(std_::move(paintRoundImage)) {
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prepareCheckCaches(&_st, _wideCheckBgCache, _wideCheckFullCache);
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}
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void RoundImageCheckbox::paint(Painter &p, int x, int y, int outerWidth) {
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auto selectionLevel = _selection.current(_checked ? 1. : 0.);
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if (_selection.animating()) {
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p.setRenderHint(QPainter::SmoothPixmapTransform, true);
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auto userpicRadius = qRound(kWideScale * (_st.imageRadius + (_st.imageSmallRadius - _st.imageRadius) * selectionLevel));
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auto userpicShift = kWideScale * _st.imageRadius - userpicRadius;
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auto userpicLeft = x - (kWideScale - 1) * _st.imageRadius + userpicShift;
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auto userpicTop = y - (kWideScale - 1) * _st.imageRadius + userpicShift;
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auto to = QRect(userpicLeft, userpicTop, userpicRadius * 2, userpicRadius * 2);
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auto from = QRect(QPoint(0, 0), _wideCache.size());
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p.drawPixmapLeft(to, outerWidth, _wideCache, from);
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p.setRenderHint(QPainter::SmoothPixmapTransform, false);
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} else {
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if (!_wideCache.isNull()) {
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_wideCache = QPixmap();
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}
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auto userpicRadius = _checked ? _st.imageSmallRadius : _st.imageRadius;
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auto userpicShift = _st.imageRadius - userpicRadius;
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auto userpicLeft = x + userpicShift;
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auto userpicTop = y + userpicShift;
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_paintRoundImage(p, userpicLeft, userpicTop, outerWidth, userpicRadius * 2);
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}
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if (selectionLevel > 0) {
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p.setRenderHint(QPainter::HighQualityAntialiasing, true);
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p.setOpacity(snap(selectionLevel, 0., 1.));
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p.setBrush(Qt::NoBrush);
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auto pen = _st.selectFg->p;
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pen.setWidth(_st.selectWidth);
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p.setPen(pen);
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p.drawEllipse(rtlrect(x, y, _st.imageRadius * 2, _st.imageRadius * 2, outerWidth));
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p.setOpacity(1.);
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p.setRenderHint(QPainter::HighQualityAntialiasing, false);
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}
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removeFadeOutedIcons();
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p.setRenderHint(QPainter::SmoothPixmapTransform, true);
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for (auto &icon : _icons) {
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auto fadeIn = icon.fadeIn.current(1.);
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auto fadeOut = icon.fadeOut.current(1.);
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auto iconRadius = qRound(kWideScale * (_st.checkSmallRadius + fadeOut * (_st.checkRadius - _st.checkSmallRadius)));
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auto iconShift = kWideScale * _st.checkRadius - iconRadius;
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auto iconLeft = x + 2 * _st.imageRadius + _st.selectWidth - 2 * _st.checkRadius - (kWideScale - 1) * _st.checkRadius + iconShift;
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auto iconTop = y + 2 * _st.imageRadius + _st.selectWidth - 2 * _st.checkRadius - (kWideScale - 1) * _st.checkRadius + iconShift;
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auto to = QRect(iconLeft, iconTop, iconRadius * 2, iconRadius * 2);
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auto from = QRect(QPoint(0, 0), _wideCheckFullCache.size());
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auto opacity = fadeIn * fadeOut;
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p.setOpacity(opacity);
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if (fadeOut < 1.) {
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p.drawPixmapLeft(to, outerWidth, icon.wideCheckCache, from);
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} else {
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auto divider = qRound((kWideScale - 2) * _st.checkRadius + fadeIn * 3 * _st.checkRadius);
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p.drawPixmapLeft(QRect(iconLeft, iconTop, divider, iconRadius * 2), outerWidth, _wideCheckFullCache, QRect(0, 0, divider * cIntRetinaFactor(), _wideCheckFullCache.height()));
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p.drawPixmapLeft(QRect(iconLeft + divider, iconTop, iconRadius * 2 - divider, iconRadius * 2), outerWidth, _wideCheckBgCache, QRect(divider * cIntRetinaFactor(), 0, _wideCheckBgCache.width() - divider * cIntRetinaFactor(), _wideCheckBgCache.height()));
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}
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}
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p.setRenderHint(QPainter::SmoothPixmapTransform, false);
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p.setOpacity(1.);
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}
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float64 RoundImageCheckbox::checkedAnimationRatio() const {
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return snap(_selection.current(_checked ? 1. : 0.), 0., 1.);
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}
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void RoundImageCheckbox::setChecked(bool checked, SetStyle speed) {
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if (_checked == checked) {
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if (speed != SetStyle::Animated) {
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if (!_icons.isEmpty()) {
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_icons.back().fadeIn.finish();
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_icons.back().fadeOut.finish();
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}
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_selection.finish();
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}
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return;
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}
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_checked = checked;
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if (_checked) {
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_icons.push_back(Icon());
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_icons.back().fadeIn.start(UpdateCallback(_updateCallback), 0, 1, _st.selectDuration);
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if (speed != SetStyle::Animated) {
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_icons.back().fadeIn.finish();
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}
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} else {
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_icons.back().fadeOut.start([this] {
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_updateCallback();
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removeFadeOutedIcons(); // this call can destroy current lambda
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}, 1, 0, _st.selectDuration);
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if (speed == SetStyle::Animated) {
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prepareWideCheckIconCache(&_icons.back());
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} else {
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_icons.back().fadeOut.finish();
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}
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}
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if (speed == SetStyle::Animated) {
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prepareWideCache();
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_selection.start(UpdateCallback(_updateCallback), _checked ? 0 : 1, _checked ? 1 : 0, _st.selectDuration, anim_bumpy<125>);
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} else {
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_selection.finish();
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}
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}
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void RoundImageCheckbox::removeFadeOutedIcons() {
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while (!_icons.empty() && !_icons.front().fadeIn.animating() && !_icons.front().fadeOut.animating()) {
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if (_icons.size() > 1 || !_checked) {
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_icons.erase(_icons.begin());
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} else {
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break;
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}
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}
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}
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void RoundImageCheckbox::prepareWideCache() {
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if (_wideCache.isNull()) {
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auto size = _st.imageRadius * 2;
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auto wideSize = size * kWideScale;
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QImage cache(wideSize * cIntRetinaFactor(), wideSize * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
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cache.setDevicePixelRatio(cRetinaFactor());
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{
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Painter p(&cache);
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p.setCompositionMode(QPainter::CompositionMode_Source);
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p.fillRect(0, 0, wideSize, wideSize, Qt::transparent);
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p.setCompositionMode(QPainter::CompositionMode_SourceOver);
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_paintRoundImage(p, (wideSize - size) / 2, (wideSize - size) / 2, wideSize, size);
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}
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_wideCache = App::pixmapFromImageInPlace(std_::move(cache));
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}
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}
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void RoundImageCheckbox::prepareWideCheckIconCache(Icon *icon) {
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auto cacheWidth = _wideCheckBgCache.width() / _wideCheckBgCache.devicePixelRatio();
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auto cacheHeight = _wideCheckBgCache.height() / _wideCheckBgCache.devicePixelRatio();
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auto wideCache = QImage(cacheWidth * cIntRetinaFactor(), cacheHeight * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
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wideCache.setDevicePixelRatio(cRetinaFactor());
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{
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Painter p(&wideCache);
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p.setCompositionMode(QPainter::CompositionMode_Source);
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auto iconRadius = kWideScale * _st.checkRadius;
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auto divider = qRound((kWideScale - 2) * _st.checkRadius + icon->fadeIn.current(1.) * (kWideScale - 1) * _st.checkRadius);
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p.drawPixmapLeft(QRect(0, 0, divider, iconRadius * 2), cacheWidth, _wideCheckFullCache, QRect(0, 0, divider * cIntRetinaFactor(), _wideCheckFullCache.height()));
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p.drawPixmapLeft(QRect(divider, 0, iconRadius * 2 - divider, iconRadius * 2), cacheWidth, _wideCheckBgCache, QRect(divider * cIntRetinaFactor(), 0, _wideCheckBgCache.width() - divider * cIntRetinaFactor(), _wideCheckBgCache.height()));
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}
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icon->wideCheckCache = App::pixmapFromImageInPlace(std_::move(wideCache));
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icon->wideCheckCache.setDevicePixelRatio(cRetinaFactor());
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}
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} // namespace Ui
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