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tdesktop/Telegram/SourceFiles/ui/effects/panel_animation.cpp

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/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#include "ui/effects/panel_animation.h"
namespace Ui {
void RoundShadowAnimation::start(int frameWidth, int frameHeight, float64 devicePixelRatio) {
Assert(!started());
_frameWidth = frameWidth;
_frameHeight = frameHeight;
_frame = QImage(_frameWidth, _frameHeight, QImage::Format_ARGB32_Premultiplied);
_frame.setDevicePixelRatio(devicePixelRatio);
_frameIntsPerLine = (_frame.bytesPerLine() >> 2);
_frameInts = reinterpret_cast<uint32*>(_frame.bits());
_frameIntsPerLineAdded = _frameIntsPerLine - _frameWidth;
Assert(_frame.depth() == static_cast<int>(sizeof(uint32) << 3));
Assert(_frame.bytesPerLine() == (_frameIntsPerLine << 2));
Assert(_frameIntsPerLineAdded >= 0);
}
void RoundShadowAnimation::setShadow(const style::Shadow &st) {
_shadow.extend = st.extend * cIntRetinaFactor();
_shadow.left = cloneImage(st.left);
if (_shadow.valid()) {
_shadow.topLeft = cloneImage(st.topLeft);
_shadow.top = cloneImage(st.top);
_shadow.topRight = cloneImage(st.topRight);
_shadow.right = cloneImage(st.right);
_shadow.bottomRight = cloneImage(st.bottomRight);
_shadow.bottom = cloneImage(st.bottom);
_shadow.bottomLeft = cloneImage(st.bottomLeft);
Assert(!_shadow.topLeft.isNull()
&& !_shadow.top.isNull()
&& !_shadow.topRight.isNull()
&& !_shadow.right.isNull()
&& !_shadow.bottomRight.isNull()
&& !_shadow.bottom.isNull()
&& !_shadow.bottomLeft.isNull());
} else {
_shadow.topLeft =
_shadow.top =
_shadow.topRight =
_shadow.right =
_shadow.bottomRight =
_shadow.bottom =
_shadow.bottomLeft = QImage();
}
}
void RoundShadowAnimation::setCornerMasks(const QImage &topLeft, const QImage &topRight, const QImage &bottomLeft, const QImage &bottomRight) {
setCornerMask(_topLeft, topLeft);
setCornerMask(_topRight, topRight);
setCornerMask(_bottomLeft, bottomLeft);
setCornerMask(_bottomRight, bottomRight);
}
void RoundShadowAnimation::setCornerMask(Corner &corner, const QImage &image) {
Assert(!started());
corner.image = image;
if (corner.valid()) {
corner.width = corner.image.width();
corner.height = corner.image.height();
corner.bytes = corner.image.constBits();
corner.bytesPerPixel = (corner.image.depth() >> 3);
corner.bytesPerLineAdded = corner.image.bytesPerLine() - corner.width * corner.bytesPerPixel;
Assert(corner.image.depth() == (corner.bytesPerPixel << 3));
Assert(corner.bytesPerLineAdded >= 0);
} else {
corner.width = corner.height = 0;
}
}
QImage RoundShadowAnimation::cloneImage(const style::icon &source) {
if (source.empty()) return QImage();
auto result = QImage(source.size() * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
result.setDevicePixelRatio(cRetinaFactor());
result.fill(Qt::transparent);
{
Painter p(&result);
source.paint(p, 0, 0, source.width());
}
return result;
}
void RoundShadowAnimation::paintCorner(Corner &corner, int left, int top) {
auto mask = corner.bytes;
auto bytesPerPixel = corner.bytesPerPixel;
auto bytesPerLineAdded = corner.bytesPerLineAdded;
auto frameInts = _frameInts + top * _frameIntsPerLine + left;
auto frameIntsPerLineAdd = _frameIntsPerLine - corner.width;
for (auto y = 0; y != corner.height; ++y) {
for (auto x = 0; x != corner.width; ++x) {
auto alpha = static_cast<uint32>(*mask) + 1;
*frameInts = anim::unshifted(anim::shifted(*frameInts) * alpha);
++frameInts;
mask += bytesPerPixel;
}
frameInts += frameIntsPerLineAdd;
mask += bytesPerLineAdded;
}
}
void RoundShadowAnimation::paintShadow(int left, int top, int right, int bottom) {
paintShadowCorner(left, top, _shadow.topLeft);
paintShadowCorner(right - _shadow.topRight.width(), top, _shadow.topRight);
paintShadowCorner(right - _shadow.bottomRight.width(), bottom - _shadow.bottomRight.height(), _shadow.bottomRight);
paintShadowCorner(left, bottom - _shadow.bottomLeft.height(), _shadow.bottomLeft);
paintShadowVertical(left, top + _shadow.topLeft.height(), bottom - _shadow.bottomLeft.height(), _shadow.left);
paintShadowVertical(right - _shadow.right.width(), top + _shadow.topRight.height(), bottom - _shadow.bottomRight.height(), _shadow.right);
paintShadowHorizontal(left + _shadow.topLeft.width(), right - _shadow.topRight.width(), top, _shadow.top);
paintShadowHorizontal(left + _shadow.bottomLeft.width(), right - _shadow.bottomRight.width(), bottom - _shadow.bottom.height(), _shadow.bottom);
}
void RoundShadowAnimation::paintShadowCorner(int left, int top, const QImage &image) {
auto imageWidth = image.width();
auto imageHeight = image.height();
auto imageInts = reinterpret_cast<const uint32*>(image.constBits());
auto imageIntsPerLine = (image.bytesPerLine() >> 2);
auto imageIntsPerLineAdded = imageIntsPerLine - imageWidth;
if (left < 0) {
auto shift = -base::take(left);
imageWidth -= shift;
imageInts += shift;
}
if (top < 0) {
auto shift = -base::take(top);
imageHeight -= shift;
imageInts += shift * imageIntsPerLine;
}
if (left + imageWidth > _frameWidth) {
imageWidth = _frameWidth - left;
}
if (top + imageHeight > _frameHeight) {
imageHeight = _frameHeight - top;
}
if (imageWidth < 0 || imageHeight < 0) return;
auto frameInts = _frameInts + top * _frameIntsPerLine + left;
auto frameIntsPerLineAdd = _frameIntsPerLine - imageWidth;
for (auto y = 0; y != imageHeight; ++y) {
for (auto x = 0; x != imageWidth; ++x) {
auto source = *frameInts;
auto shadowAlpha = qMax(_frameAlpha - int(source >> 24), 0);
*frameInts = anim::unshifted(anim::shifted(source) * 256 + anim::shifted(*imageInts) * shadowAlpha);
++frameInts;
++imageInts;
}
frameInts += frameIntsPerLineAdd;
imageInts += imageIntsPerLineAdded;
}
}
void RoundShadowAnimation::paintShadowVertical(int left, int top, int bottom, const QImage &image) {
auto imageWidth = image.width();
auto imageInts = reinterpret_cast<const uint32*>(image.constBits());
if (left < 0) {
auto shift = -base::take(left);
imageWidth -= shift;
imageInts += shift;
}
if (top < 0) top = 0;
accumulate_min(bottom, _frameHeight);
accumulate_min(imageWidth, _frameWidth - left);
if (imageWidth < 0 || bottom <= top) return;
auto frameInts = _frameInts + top * _frameIntsPerLine + left;
auto frameIntsPerLineAdd = _frameIntsPerLine - imageWidth;
for (auto y = top; y != bottom; ++y) {
for (auto x = 0; x != imageWidth; ++x) {
auto source = *frameInts;
auto shadowAlpha = _frameAlpha - (source >> 24);
*frameInts = anim::unshifted(anim::shifted(source) * 256 + anim::shifted(*imageInts) * shadowAlpha);
++frameInts;
++imageInts;
}
frameInts += frameIntsPerLineAdd;
imageInts -= imageWidth;
}
}
void RoundShadowAnimation::paintShadowHorizontal(int left, int right, int top, const QImage &image) {
auto imageHeight = image.height();
auto imageInts = reinterpret_cast<const uint32*>(image.constBits());
auto imageIntsPerLine = (image.bytesPerLine() >> 2);
if (top < 0) {
auto shift = -base::take(top);
imageHeight -= shift;
imageInts += shift * imageIntsPerLine;
}
if (left < 0) left = 0;
accumulate_min(right, _frameWidth);
accumulate_min(imageHeight, _frameHeight - top);
if (imageHeight < 0 || right <= left) return;
auto frameInts = _frameInts + top * _frameIntsPerLine + left;
auto frameIntsPerLineAdd = _frameIntsPerLine - (right - left);
for (auto y = 0; y != imageHeight; ++y) {
auto imagePattern = anim::shifted(*imageInts);
for (auto x = left; x != right; ++x) {
auto source = *frameInts;
auto shadowAlpha = _frameAlpha - (source >> 24);
*frameInts = anim::unshifted(anim::shifted(source) * 256 + imagePattern * shadowAlpha);
++frameInts;
}
frameInts += frameIntsPerLineAdd;
imageInts += imageIntsPerLine;
}
}
void PanelAnimation::setFinalImage(QImage &&finalImage, QRect inner) {
Assert(!started());
_finalImage = App::pixmapFromImageInPlace(std::move(finalImage).convertToFormat(QImage::Format_ARGB32_Premultiplied));
Assert(!_finalImage.isNull());
_finalWidth = _finalImage.width();
_finalHeight = _finalImage.height();
Assert(!(_finalWidth % cIntRetinaFactor()));
Assert(!(_finalHeight % cIntRetinaFactor()));
_finalInnerLeft = inner.x();
_finalInnerTop = inner.y();
_finalInnerWidth = inner.width();
_finalInnerHeight = inner.height();
Assert(!(_finalInnerLeft % cIntRetinaFactor()));
Assert(!(_finalInnerTop % cIntRetinaFactor()));
Assert(!(_finalInnerWidth % cIntRetinaFactor()));
Assert(!(_finalInnerHeight % cIntRetinaFactor()));
_finalInnerRight = _finalInnerLeft + _finalInnerWidth;
_finalInnerBottom = _finalInnerTop + _finalInnerHeight;
Assert(QRect(0, 0, _finalWidth, _finalHeight).contains(inner));
setStartWidth();
setStartHeight();
setStartAlpha();
setStartFadeTop();
createFadeMask();
setWidthDuration();
setHeightDuration();
setAlphaDuration();
if (!_skipShadow) {
setShadow(_st.shadow);
}
auto checkCorner = [this, inner](Corner &corner) {
if (!corner.valid()) return;
if ((_startWidth >= 0 && _startWidth < _finalWidth)
|| (_startHeight >= 0 && _startHeight < _finalHeight)) {
Assert(corner.width <= inner.width());
Assert(corner.height <= inner.height());
}
};
checkCorner(_topLeft);
checkCorner(_topRight);
checkCorner(_bottomLeft);
checkCorner(_bottomRight);
}
void PanelAnimation::setStartWidth() {
_startWidth = qRound(_st.startWidth * _finalInnerWidth);
if (_startWidth >= 0) Assert(_startWidth <= _finalInnerWidth);
}
void PanelAnimation::setStartHeight() {
_startHeight = qRound(_st.startHeight * _finalInnerHeight);
if (_startHeight >= 0) Assert(_startHeight <= _finalInnerHeight);
}
void PanelAnimation::setStartAlpha() {
_startAlpha = qRound(_st.startOpacity * 255);
Assert(_startAlpha >= 0 && _startAlpha < 256);
}
void PanelAnimation::setStartFadeTop() {
_startFadeTop = qRound(_st.startFadeTop * _finalInnerHeight);
}
void PanelAnimation::createFadeMask() {
auto resultHeight = qRound(_finalImage.height() * _st.fadeHeight);
if (auto remove = (resultHeight % cIntRetinaFactor())) {
resultHeight -= remove;
}
auto finalAlpha = qRound(_st.fadeOpacity * 255);
Assert(finalAlpha >= 0 && finalAlpha < 256);
auto result = QImage(cIntRetinaFactor(), resultHeight, QImage::Format_ARGB32_Premultiplied);
auto ints = reinterpret_cast<uint32*>(result.bits());
auto intsPerLineAdded = (result.bytesPerLine() >> 2) - cIntRetinaFactor();
auto up = (_origin == PanelAnimation::Origin::BottomLeft || _origin == PanelAnimation::Origin::BottomRight);
auto from = up ? resultHeight : 0, to = resultHeight - from, delta = up ? -1 : 1;
auto fadeFirstAlpha = up ? (finalAlpha + 1) : 1;
auto fadeLastAlpha = up ? 1 : (finalAlpha + 1);
_fadeFirst = QBrush(QColor(_st.fadeBg->c.red(), _st.fadeBg->c.green(), _st.fadeBg->c.blue(), (_st.fadeBg->c.alpha() * fadeFirstAlpha) >> 8));
_fadeLast = QBrush(QColor(_st.fadeBg->c.red(), _st.fadeBg->c.green(), _st.fadeBg->c.blue(), (_st.fadeBg->c.alpha() * fadeLastAlpha) >> 8));
for (auto y = from; y != to; y += delta) {
auto alpha = static_cast<uint32>(finalAlpha * y) / resultHeight;
auto value = (0xFFU << 24) | (alpha << 16) | (alpha << 8) | alpha;
for (auto x = 0; x != cIntRetinaFactor(); ++x) {
*ints++ = value;
}
ints += intsPerLineAdded;
}
_fadeMask = App::pixmapFromImageInPlace(style::colorizeImage(result, _st.fadeBg));
_fadeHeight = _fadeMask.height();
}
void PanelAnimation::setSkipShadow(bool skipShadow) {
Assert(!started());
_skipShadow = skipShadow;
}
void PanelAnimation::setWidthDuration() {
_widthDuration = _st.widthDuration;
Assert(_widthDuration >= 0.);
Assert(_widthDuration <= 1.);
}
void PanelAnimation::setHeightDuration() {
Assert(!started());
_heightDuration = _st.heightDuration;
Assert(_heightDuration >= 0.);
Assert(_heightDuration <= 1.);
}
void PanelAnimation::setAlphaDuration() {
Assert(!started());
_alphaDuration = _st.opacityDuration;
Assert(_alphaDuration >= 0.);
Assert(_alphaDuration <= 1.);
}
void PanelAnimation::start() {
Assert(!_finalImage.isNull());
RoundShadowAnimation::start(_finalWidth, _finalHeight, _finalImage.devicePixelRatio());
auto checkCorner = [this](const Corner &corner) {
if (!corner.valid()) return;
if (_startWidth >= 0) Assert(corner.width <= _startWidth);
if (_startHeight >= 0) Assert(corner.height <= _startHeight);
Assert(corner.width <= _finalInnerWidth);
Assert(corner.height <= _finalInnerHeight);
};
checkCorner(_topLeft);
checkCorner(_topRight);
checkCorner(_bottomLeft);
checkCorner(_bottomRight);
}
void PanelAnimation::paintFrame(QPainter &p, int x, int y, int outerWidth, float64 dt, float64 opacity) {
Assert(started());
Assert(dt >= 0.);
auto &transition = anim::easeOutCirc;
if (dt < _alphaDuration) opacity *= transition(1., dt / _alphaDuration);
_frameAlpha = anim::interpolate(1, 256, opacity);
auto frameWidth = (_startWidth < 0 || dt >= _widthDuration) ? _finalInnerWidth : anim::interpolate(_startWidth, _finalInnerWidth, transition(1., dt / _widthDuration));
auto frameHeight = (_startHeight < 0 || dt >= _heightDuration) ? _finalInnerHeight : anim::interpolate(_startHeight, _finalInnerHeight, transition(1., dt / _heightDuration));
if (auto decrease = (frameWidth % cIntRetinaFactor())) {
frameWidth -= decrease;
}
if (auto decrease = (frameHeight % cIntRetinaFactor())) {
frameHeight -= decrease;
}
auto frameLeft = (_origin == Origin::TopLeft || _origin == Origin::BottomLeft) ? _finalInnerLeft : (_finalInnerRight - frameWidth);
auto frameTop = (_origin == Origin::TopLeft || _origin == Origin::TopRight) ? _finalInnerTop : (_finalInnerBottom - frameHeight);
auto frameRight = frameLeft + frameWidth;
auto frameBottom = frameTop + frameHeight;
auto fadeTop = (_fadeHeight > 0) ? snap(anim::interpolate(_startFadeTop, _finalInnerHeight, transition(1., dt)), 0, frameHeight) : frameHeight;
if (auto decrease = (fadeTop % cIntRetinaFactor())) {
fadeTop -= decrease;
}
auto fadeBottom = (fadeTop < frameHeight) ? qMin(fadeTop + _fadeHeight, frameHeight) : frameHeight;
auto fadeSkipLines = 0;
if (_origin == Origin::BottomLeft || _origin == Origin::BottomRight) {
fadeTop = frameHeight - fadeTop;
fadeBottom = frameHeight - fadeBottom;
qSwap(fadeTop, fadeBottom);
fadeSkipLines = fadeTop + _fadeHeight - fadeBottom;
}
fadeTop += frameTop;
fadeBottom += frameTop;
if (opacity < 1.) {
_frame.fill(Qt::transparent);
}
{
Painter p(&_frame);
p.setOpacity(opacity);
auto painterFrameLeft = frameLeft / cIntRetinaFactor();
auto painterFrameTop = frameTop / cIntRetinaFactor();
auto painterFadeBottom = fadeBottom / cIntRetinaFactor();
p.drawPixmap(painterFrameLeft, painterFrameTop, _finalImage, frameLeft, frameTop, frameWidth, frameHeight);
if (_fadeHeight) {
if (frameTop != fadeTop) {
p.fillRect(painterFrameLeft, painterFrameTop, frameWidth, fadeTop - frameTop, _fadeFirst);
}
if (fadeTop != fadeBottom) {
auto painterFadeTop = fadeTop / cIntRetinaFactor();
auto painterFrameWidth = frameWidth / cIntRetinaFactor();
auto painterFrameHeight = frameHeight / cIntRetinaFactor();
p.drawPixmap(painterFrameLeft, painterFadeTop, painterFrameWidth, painterFadeBottom - painterFadeTop, _fadeMask, 0, fadeSkipLines, cIntRetinaFactor(), fadeBottom - fadeTop);
}
if (fadeBottom != frameBottom) {
p.fillRect(painterFrameLeft, painterFadeBottom, frameWidth, frameBottom - fadeBottom, _fadeLast);
}
}
}
auto frameInts = _frameInts + frameLeft + frameTop * _frameIntsPerLine;
auto frameIntsPerLineAdd = (_finalWidth - frameWidth) + _frameIntsPerLineAdded;
// Draw corners
paintCorner(_topLeft, frameLeft, frameTop);
paintCorner(_topRight, frameRight - _topRight.width, frameTop);
paintCorner(_bottomLeft, frameLeft, frameBottom - _bottomLeft.height);
paintCorner(_bottomRight, frameRight - _bottomRight.width, frameBottom - _bottomRight.height);
// Draw shadow upon the transparent
auto outerLeft = frameLeft;
auto outerTop = frameTop;
auto outerRight = frameRight;
auto outerBottom = frameBottom;
if (_shadow.valid()) {
outerLeft -= _shadow.extend.left();
outerTop -= _shadow.extend.top();
outerRight += _shadow.extend.right();
outerBottom += _shadow.extend.bottom();
}
if (cIntRetinaFactor() > 1) {
if (auto skipLeft = (outerLeft % cIntRetinaFactor())) {
outerLeft -= skipLeft;
}
if (auto skipTop = (outerTop % cIntRetinaFactor())) {
outerTop -= skipTop;
}
if (auto skipRight = (outerRight % cIntRetinaFactor())) {
outerRight += (cIntRetinaFactor() - skipRight);
}
if (auto skipBottom = (outerBottom % cIntRetinaFactor())) {
outerBottom += (cIntRetinaFactor() - skipBottom);
}
}
if (opacity == 1.) {
// Fill above the frame top with transparent.
auto fillTopInts = (_frameInts + outerTop * _frameIntsPerLine + outerLeft);
auto fillWidth = (outerRight - outerLeft) * sizeof(uint32);
for (auto fillTop = frameTop - outerTop; fillTop != 0; --fillTop) {
memset(fillTopInts, 0, fillWidth);
fillTopInts += _frameIntsPerLine;
}
// Fill to the left and to the right of the frame with transparent.
auto fillLeft = (frameLeft - outerLeft) * sizeof(uint32);
auto fillRight = (outerRight - frameRight) * sizeof(uint32);
if (fillLeft || fillRight) {
auto fillInts = _frameInts + frameTop * _frameIntsPerLine;
for (auto y = frameTop; y != frameBottom; ++y) {
memset(fillInts + outerLeft, 0, fillLeft);
memset(fillInts + frameRight, 0, fillRight);
fillInts += _frameIntsPerLine;
}
}
// Fill below the frame bottom with transparent.
auto fillBottomInts = (_frameInts + frameBottom * _frameIntsPerLine + outerLeft);
for (auto fillBottom = outerBottom - frameBottom; fillBottom != 0; --fillBottom) {
memset(fillBottomInts, 0, fillWidth);
fillBottomInts += _frameIntsPerLine;
}
}
if (_shadow.valid()) {
paintShadow(outerLeft, outerTop, outerRight, outerBottom);
}
// Debug
//frameInts = _frameInts;
//auto pattern = anim::shifted((static_cast<uint32>(0xFF) << 24) | (static_cast<uint32>(0xFF) << 16) | (static_cast<uint32>(0xFF) << 8) | static_cast<uint32>(0xFF));
//for (auto y = 0; y != _finalHeight; ++y) {
// for (auto x = 0; x != _finalWidth; ++x) {
// auto source = *frameInts;
// auto sourceAlpha = (source >> 24);
// *frameInts = anim::unshifted(anim::shifted(source) * 256 + pattern * (256 - sourceAlpha));
// ++frameInts;
// }
// frameInts += _frameIntsPerLineAdded;
//}
p.drawImage(rtlpoint(x + (outerLeft / cIntRetinaFactor()), y + (outerTop / cIntRetinaFactor()), outerWidth), _frame, QRect(outerLeft, outerTop, outerRight - outerLeft, outerBottom - outerTop));
}
} // namespace Ui
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