tdesktop/Telegram/SourceFiles/layerwidget.cpp

987 lines
28 KiB
C++

/*
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 "lang/lang_keys.h"
#include "media/media_clip_reader.h"
#include "boxes/abstract_box.h"
#include "layerwidget.h"
#include "application.h"
#include "mainwindow.h"
#include "mainwidget.h"
#include "core/file_utilities.h"
#include "styles/style_boxes.h"
#include "styles/style_widgets.h"
#include "styles/style_chat_helpers.h"
#include "ui/widgets/shadow.h"
#include "window/window_main_menu.h"
#include "auth_session.h"
#include "window/window_controller.h"
namespace {
constexpr int kStickerPreviewEmojiLimit = 10;
} // namespace
class LayerStackWidget::BackgroundWidget : public TWidget {
public:
BackgroundWidget(QWidget *parent) : TWidget(parent) {
}
void setDoneCallback(base::lambda<void()> callback) {
_doneCallback = std::move(callback);
}
void setLayerBoxes(const QRect &specialLayerBox, const QRect &layerBox);
void setCacheImages(QPixmap &&bodyCache, QPixmap &&mainMenuCache, QPixmap &&specialLayerCache, QPixmap &&layerCache);
void startAnimation(Action action);
void finishAnimation();
bool animating() const {
return _a_mainMenuShown.animating() || _a_specialLayerShown.animating() || _a_layerShown.animating();
}
protected:
void paintEvent(QPaintEvent *e) override;
private:
bool isShown() const {
return _mainMenuShown || _specialLayerShown || _layerShown;
}
void checkIfDone();
void setMainMenuShown(bool shown);
void setSpecialLayerShown(bool shown);
void setLayerShown(bool shown);
void checkWasShown(bool wasShown);
void animationCallback();
QPixmap _bodyCache;
QPixmap _mainMenuCache;
int _mainMenuCacheWidth = 0;
QPixmap _specialLayerCache;
QPixmap _layerCache;
base::lambda<void()> _doneCallback;
bool _wasAnimating = false;
bool _inPaintEvent = false;
Animation _a_shown;
Animation _a_mainMenuShown;
Animation _a_specialLayerShown;
Animation _a_layerShown;
QRect _specialLayerBox, _specialLayerCacheBox;
QRect _layerBox, _layerCacheBox;
int _mainMenuRight = 0;
bool _mainMenuShown = false;
bool _specialLayerShown = false;
bool _layerShown = false;
};
void LayerStackWidget::BackgroundWidget::setCacheImages(QPixmap &&bodyCache, QPixmap &&mainMenuCache, QPixmap &&specialLayerCache, QPixmap &&layerCache) {
_bodyCache = std::move(bodyCache);
_mainMenuCache = std::move(mainMenuCache);
_specialLayerCache = std::move(specialLayerCache);
_layerCache = std::move(layerCache);
_specialLayerCacheBox = _specialLayerBox;
_layerCacheBox = _layerBox;
setAttribute(Qt::WA_OpaquePaintEvent, !_bodyCache.isNull());
}
void LayerStackWidget::BackgroundWidget::startAnimation(Action action) {
if (action == Action::ShowMainMenu) {
setMainMenuShown(true);
} else if (action != Action::HideLayer) {
setMainMenuShown(false);
}
if (action == Action::ShowSpecialLayer) {
setSpecialLayerShown(true);
} else if (action == Action::ShowMainMenu || action == Action::HideAll) {
setSpecialLayerShown(false);
}
if (action == Action::ShowLayer) {
setLayerShown(true);
} else {
setLayerShown(false);
}
_wasAnimating = true;
checkIfDone();
}
void LayerStackWidget::BackgroundWidget::checkIfDone() {
if (!_wasAnimating || _inPaintEvent || animating()) {
return;
}
_wasAnimating = false;
_bodyCache = _mainMenuCache = _specialLayerCache = _layerCache = QPixmap();
setAttribute(Qt::WA_OpaquePaintEvent, false);
if (_doneCallback) {
_doneCallback();
}
}
void LayerStackWidget::BackgroundWidget::setMainMenuShown(bool shown) {
auto wasShown = isShown();
if (_mainMenuShown != shown) {
_mainMenuShown = shown;
_a_mainMenuShown.start([this] { animationCallback(); }, _mainMenuShown ? 0. : 1., _mainMenuShown ? 1. : 0., st::boxDuration, anim::easeOutCirc);
}
_mainMenuCacheWidth = (_mainMenuCache.width() / cIntRetinaFactor()) - st::boxRoundShadow.extend.right();
_mainMenuRight = _mainMenuShown ? _mainMenuCacheWidth : 0;
checkWasShown(wasShown);
}
void LayerStackWidget::BackgroundWidget::setSpecialLayerShown(bool shown) {
auto wasShown = isShown();
if (_specialLayerShown != shown) {
_specialLayerShown = shown;
_a_specialLayerShown.start([this] { animationCallback(); }, _specialLayerShown ? 0. : 1., _specialLayerShown ? 1. : 0., st::boxDuration);
}
checkWasShown(wasShown);
}
void LayerStackWidget::BackgroundWidget::setLayerShown(bool shown) {
auto wasShown = isShown();
if (_layerShown != shown) {
_layerShown = shown;
_a_layerShown.start([this] { animationCallback(); }, _layerShown ? 0. : 1., _layerShown ? 1. : 0., st::boxDuration);
}
checkWasShown(wasShown);
}
void LayerStackWidget::BackgroundWidget::checkWasShown(bool wasShown) {
if (isShown() != wasShown) {
_a_shown.start([this] { animationCallback(); }, wasShown ? 1. : 0., wasShown ? 0. : 1., st::boxDuration, anim::easeOutCirc);
}
}
void LayerStackWidget::BackgroundWidget::setLayerBoxes(const QRect &specialLayerBox, const QRect &layerBox) {
_specialLayerBox = specialLayerBox;
_layerBox = layerBox;
update();
}
void LayerStackWidget::BackgroundWidget::paintEvent(QPaintEvent *e) {
Painter p(this);
_inPaintEvent = true;
auto guard = base::scope_guard([this] {
_inPaintEvent = false;
checkIfDone();
});
if (!_bodyCache.isNull()) {
p.drawPixmap(0, 0, _bodyCache);
}
auto specialLayerBox = _specialLayerCache.isNull() ? _specialLayerBox : _specialLayerCacheBox;
auto layerBox = _layerCache.isNull() ? _layerBox : _layerCacheBox;
auto ms = getms();
auto mainMenuProgress = _a_mainMenuShown.current(ms, -1);
auto mainMenuRight = (_mainMenuCache.isNull() || mainMenuProgress < 0) ? _mainMenuRight : (mainMenuProgress < 0) ? _mainMenuRight : anim::interpolate(0, _mainMenuCacheWidth, mainMenuProgress);
if (mainMenuRight) {
// Move showing boxes to the right while main menu is hiding.
if (!_specialLayerCache.isNull()) {
specialLayerBox.moveLeft(specialLayerBox.left() + mainMenuRight / 2);
}
if (!_layerCache.isNull()) {
layerBox.moveLeft(layerBox.left() + mainMenuRight / 2);
}
}
auto bgOpacity = _a_shown.current(ms, isShown() ? 1. : 0.);
auto specialLayerOpacity = _a_specialLayerShown.current(ms, _specialLayerShown ? 1. : 0.);
auto layerOpacity = _a_layerShown.current(ms, _layerShown ? 1. : 0.);
if (bgOpacity == 0.) {
return;
}
p.setOpacity(bgOpacity);
auto overSpecialOpacity = (layerOpacity * specialLayerOpacity);
auto bg = myrtlrect(mainMenuRight, 0, width() - mainMenuRight, height());
if (_mainMenuCache.isNull() && mainMenuRight > 0) {
// All cache images are taken together with their shadows,
// so we paint shadow only when there is no cache.
Ui::Shadow::paint(p, myrtlrect(0, 0, mainMenuRight, height()), width(), st::boxRoundShadow, RectPart::Right);
}
if (_specialLayerCache.isNull() && !specialLayerBox.isEmpty()) {
// All cache images are taken together with their shadows,
// so we paint shadow only when there is no cache.
auto sides = RectPart::Left | RectPart::Right;
auto topCorners = (specialLayerBox.y() > 0);
auto bottomCorners = (specialLayerBox.y() + specialLayerBox.height() < height());
if (topCorners) {
sides |= RectPart::Top;
}
if (bottomCorners) {
sides |= RectPart::Bottom;
}
if (topCorners || bottomCorners) {
p.setClipRegion(QRegion(rect()) - specialLayerBox.marginsRemoved(QMargins(st::boxRadius, 0, st::boxRadius, 0)) - specialLayerBox.marginsRemoved(QMargins(0, st::boxRadius, 0, st::boxRadius)));
}
Ui::Shadow::paint(p, specialLayerBox, width(), st::boxRoundShadow, sides);
if (topCorners || bottomCorners) {
// In case of painting the shadow above the special layer we get
// glitches in the corners, so we need to paint the corners once more.
p.setClipping(false);
auto parts = (topCorners ? (RectPart::TopLeft | RectPart::TopRight) : RectPart::None)
| (bottomCorners ? (RectPart::BottomLeft | RectPart::BottomRight) : RectPart::None);
App::roundRect(p, specialLayerBox, st::boxBg, BoxCorners, nullptr, parts);
}
}
if (!layerBox.isEmpty() && !_specialLayerCache.isNull() && overSpecialOpacity < bgOpacity) {
// In case of moving special layer below the background while showing a box
// we need to fill special layer rect below its cache with a complex opacity
// (alpha_final - alpha_current) / (1 - alpha_current) so we won't get glitches
// in the transparent special layer cache corners after filling special layer
// rect above its cache with alpha_current opacity.
auto region = QRegion(bg) - specialLayerBox;
for (auto rect : region.rects()) {
p.fillRect(rect, st::layerBg);
}
p.setOpacity((bgOpacity - overSpecialOpacity) / (1. - (overSpecialOpacity * st::layerBg->c.alphaF())));
p.fillRect(specialLayerBox, st::layerBg);
p.setOpacity(bgOpacity);
} else {
p.fillRect(bg, st::layerBg);
}
if (!_specialLayerCache.isNull() && specialLayerOpacity > 0) {
p.setOpacity(specialLayerOpacity);
auto cacheLeft = specialLayerBox.x() - st::boxRoundShadow.extend.left();
auto cacheTop = specialLayerBox.y() - (specialLayerBox.y() > 0 ? st::boxRoundShadow.extend.top() : 0);
p.drawPixmapLeft(cacheLeft, cacheTop, width(), _specialLayerCache);
}
if (!layerBox.isEmpty()) {
if (!_specialLayerCache.isNull()) {
p.setOpacity(overSpecialOpacity);
p.fillRect(specialLayerBox, st::layerBg);
}
if (_layerCache.isNull()) {
p.setOpacity(layerOpacity);
Ui::Shadow::paint(p, layerBox, width(), st::boxRoundShadow);
}
}
if (!_layerCache.isNull() && layerOpacity > 0) {
p.setOpacity(layerOpacity);
p.drawPixmapLeft(layerBox.topLeft() - QPoint(st::boxRoundShadow.extend.left(), st::boxRoundShadow.extend.top()), width(), _layerCache);
}
if (!_mainMenuCache.isNull() && mainMenuRight > 0) {
p.setOpacity(1.);
auto shownWidth = mainMenuRight + st::boxRoundShadow.extend.right();
auto sourceWidth = shownWidth * cIntRetinaFactor();
auto sourceRect = rtlrect(_mainMenuCache.width() - sourceWidth, 0, sourceWidth, _mainMenuCache.height(), _mainMenuCache.width());
p.drawPixmapLeft(0, 0, shownWidth, height(), width(), _mainMenuCache, sourceRect);
}
}
void LayerStackWidget::BackgroundWidget::finishAnimation() {
_a_shown.finish();
_a_mainMenuShown.finish();
_a_specialLayerShown.finish();
_a_layerShown.finish();
checkIfDone();
}
void LayerStackWidget::BackgroundWidget::animationCallback() {
update();
checkIfDone();
}
LayerStackWidget::LayerStackWidget(QWidget *parent, Window::Controller *controller) : TWidget(parent)
, _controller(controller)
, _background(this) {
setGeometry(parentWidget()->rect());
hide();
_background->setDoneCallback([this] { animationDone(); });
}
void LayerWidget::setInnerFocus() {
if (!isAncestorOf(App::wnd()->focusWidget())) {
doSetInnerFocus();
}
}
bool LayerWidget::overlaps(const QRect &globalRect) {
if (isHidden()) {
return false;
}
auto testRect = QRect(mapFromGlobal(globalRect.topLeft()), globalRect.size());
if (testAttribute(Qt::WA_OpaquePaintEvent)) {
return rect().contains(testRect);
}
if (QRect(0, st::boxRadius, width(), height() - 2 * st::boxRadius).contains(testRect)) {
return true;
}
if (QRect(st::boxRadius, 0, width() - 2 * st::boxRadius, height()).contains(testRect)) {
return true;
}
return false;
}
void LayerStackWidget::keyPressEvent(QKeyEvent *e) {
if (e->key() == Qt::Key_Escape) {
hideCurrent();
}
}
void LayerStackWidget::mousePressEvent(QMouseEvent *e) {
hideCurrent();
}
void LayerStackWidget::hideCurrent() {
return currentLayer() ? hideLayers() : hideAll();
}
void LayerStackWidget::hideLayers() {
startAnimation([] {}, [this] {
clearLayers();
}, Action::HideLayer);
}
void LayerStackWidget::hideAll() {
startAnimation([] {}, [this] {
clearLayers();
clearSpecialLayer();
_mainMenu.destroyDelayed();
}, Action::HideAll);
}
void LayerStackWidget::hideTopLayer() {
if (_specialLayer) {
hideLayers();
} else {
hideAll();
}
}
bool LayerStackWidget::layerShown() const {
return _specialLayer || currentLayer();
}
void LayerStackWidget::setCacheImages() {
auto bodyCache = QPixmap(), mainMenuCache = QPixmap();
auto specialLayerCache = QPixmap();
if (_specialLayer) {
auto sides = RectPart::Left | RectPart::Right;
if (_specialLayer->y() > 0) {
sides |= RectPart::Top;
}
if (_specialLayer->y() + _specialLayer->height() < height()) {
sides |= RectPart::Bottom;
}
specialLayerCache = Ui::Shadow::grab(_specialLayer, st::boxRoundShadow, sides);
}
auto layerCache = QPixmap();
if (auto layer = currentLayer()) {
layerCache = Ui::Shadow::grab(layer, st::boxRoundShadow);
}
if (isAncestorOf(App::wnd()->focusWidget())) {
setFocus();
}
if (_mainMenu) {
setAttribute(Qt::WA_OpaquePaintEvent, false);
hideChildren();
bodyCache = myGrab(App::wnd()->bodyWidget());
showChildren();
mainMenuCache = Ui::Shadow::grab(_mainMenu, st::boxRoundShadow, RectPart::Right);
}
setAttribute(Qt::WA_OpaquePaintEvent, !bodyCache.isNull());
updateLayerBoxes();
_background->setCacheImages(std::move(bodyCache), std::move(mainMenuCache), std::move(specialLayerCache), std::move(layerCache));
}
void LayerStackWidget::onLayerClosed(LayerWidget *layer) {
if (!layer->setClosing()) {
// This layer is already closing.
return;
}
layer->deleteLater();
if (layer == _specialLayer) {
hideAll();
} else if (layer == currentLayer()) {
if (_layers.size() == 1) {
hideCurrent();
} else {
if (layer->inFocusChain()) setFocus();
layer->hide();
_layers.pop_back();
layer = currentLayer();
layer->parentResized();
if (!_background->animating()) {
layer->show();
showFinished();
}
}
} else {
for (auto i = _layers.begin(), e = _layers.end(); i != e; ++i) {
if (layer == *i) {
_layers.erase(i);
break;
}
}
}
}
void LayerStackWidget::onLayerResized() {
updateLayerBoxes();
}
void LayerStackWidget::updateLayerBoxes() {
auto getLayerBox = [this]() {
if (auto layer = currentLayer()) {
return layer->geometry();
}
return QRect();
};
auto getSpecialLayerBox = [this]() {
return _specialLayer ? _specialLayer->geometry() : QRect();
};
_background->setLayerBoxes(getSpecialLayerBox(), getLayerBox());
update();
}
void LayerStackWidget::finishAnimation() {
_background->finishAnimation();
}
bool LayerStackWidget::canSetFocus() const {
return (currentLayer() || _specialLayer || _mainMenu);
}
void LayerStackWidget::setInnerFocus() {
if (_background->animating()) {
setFocus();
} else if (auto l = currentLayer()) {
l->setInnerFocus();
} else if (_specialLayer) {
_specialLayer->setInnerFocus();
} else if (_mainMenu) {
_mainMenu->setInnerFocus();
}
}
bool LayerStackWidget::contentOverlapped(const QRect &globalRect) {
if (isHidden()) {
return false;
}
if (_specialLayer && _specialLayer->overlaps(globalRect)) {
return true;
}
if (auto layer = currentLayer()) {
return layer->overlaps(globalRect);
}
return false;
}
template <typename SetupNew, typename ClearOld>
void LayerStackWidget::startAnimation(SetupNew setupNewWidgets, ClearOld clearOldWidgets, Action action) {
if (App::quitting()) return;
setupNewWidgets();
setCacheImages();
clearOldWidgets();
prepareForAnimation();
_background->startAnimation(action);
}
void LayerStackWidget::resizeEvent(QResizeEvent *e) {
_background->setGeometry(rect());
if (_specialLayer) {
_specialLayer->parentResized();
}
if (auto layer = currentLayer()) {
layer->parentResized();
}
if (_mainMenu) {
_mainMenu->resize(_mainMenu->width(), height());
}
updateLayerBoxes();
}
void LayerStackWidget::showBox(object_ptr<BoxContent> box) {
auto pointer = pushBox(std::move(box));
while (!_layers.isEmpty() && _layers.front() != pointer) {
auto removingLayer = _layers.front();
_layers.pop_front();
removingLayer->setClosing();
if (removingLayer->inFocusChain()) setFocus();
removingLayer->hide();
removingLayer->deleteLater();
}
}
void LayerStackWidget::prepareForAnimation() {
if (isHidden()) {
show();
}
if (_mainMenu) {
_mainMenu->hide();
}
if (_specialLayer) {
_specialLayer->hide();
}
if (auto layer = currentLayer()) {
layer->hide();
}
}
void LayerStackWidget::animationDone() {
bool hidden = true;
if (_mainMenu) {
_mainMenu->show();
hidden = false;
}
if (_specialLayer) {
_specialLayer->show();
hidden = false;
}
if (auto layer = currentLayer()) {
layer->show();
hidden = false;
}
if (hidden) {
App::wnd()->layerFinishedHide(this);
} else {
showFinished();
}
setAttribute(Qt::WA_OpaquePaintEvent, false);
}
void LayerStackWidget::showFinished() {
fixOrder();
sendFakeMouseEvent();
updateLayerBoxes();
if (_mainMenu) {
_mainMenu->showFinished();
}
if (_specialLayer) {
_specialLayer->showFinished();
}
if (auto layer = currentLayer()) {
layer->showFinished();
}
if (auto window = App::wnd()) {
window->setInnerFocus();
}
}
void LayerStackWidget::showSpecialLayer(object_ptr<LayerWidget> layer) {
startAnimation([this, layer = std::move(layer)]() mutable {
_specialLayer.destroyDelayed();
_specialLayer = std::move(layer);
initChildLayer(_specialLayer);
}, [this] {
clearLayers();
_mainMenu.destroyDelayed();
}, Action::ShowSpecialLayer);
}
void LayerStackWidget::showMainMenu() {
startAnimation([this] {
_mainMenu.create(this);
_mainMenu->setGeometryToLeft(0, 0, _mainMenu->width(), height());
_mainMenu->setParent(this);
}, [this] {
clearLayers();
_specialLayer.destroyDelayed();
}, Action::ShowMainMenu);
}
void LayerStackWidget::appendBox(object_ptr<BoxContent> box) {
pushBox(std::move(box));
}
LayerWidget *LayerStackWidget::pushBox(object_ptr<BoxContent> box) {
auto oldLayer = currentLayer();
if (oldLayer) {
if (oldLayer->inFocusChain()) setFocus();
oldLayer->hide();
}
auto layer = object_ptr<AbstractBox>(this, _controller, std::move(box));
_layers.push_back(layer);
initChildLayer(layer);
if (_layers.size() > 1) {
if (!_background->animating()) {
layer->show();
showFinished();
}
} else {
startAnimation([] {}, [this] {
_mainMenu.destroyDelayed();
}, Action::ShowLayer);
}
return layer.data();
}
void LayerStackWidget::prependBox(object_ptr<BoxContent> box) {
if (_layers.empty()) {
return showBox(std::move(box));
}
auto layer = object_ptr<AbstractBox>(this, _controller, std::move(box));
layer->hide();
_layers.push_front(layer);
initChildLayer(layer);
}
void LayerStackWidget::clearLayers() {
for (auto layer : base::take(_layers)) {
layer->setClosing();
if (layer->inFocusChain()) setFocus();
layer->hide();
layer->deleteLater();
}
}
void LayerStackWidget::clearSpecialLayer() {
if (_specialLayer) {
_specialLayer->setClosing();
_specialLayer.destroyDelayed();
}
}
void LayerStackWidget::initChildLayer(LayerWidget *layer) {
layer->setParent(this);
layer->setClosedCallback([this, layer] { onLayerClosed(layer); });
layer->setResizedCallback([this] { onLayerResized(); });
connect(layer, SIGNAL(destroyed(QObject*)), this, SLOT(onLayerDestroyed(QObject*)));
layer->parentResized();
}
void LayerStackWidget::fixOrder() {
if (auto layer = currentLayer()) {
_background->raise();
layer->raise();
} else if (_specialLayer) {
_specialLayer->raise();
}
if (_mainMenu) {
_mainMenu->raise();
}
}
void LayerStackWidget::sendFakeMouseEvent() {
sendSynteticMouseEvent(this, QEvent::MouseMove, Qt::NoButton);
}
void LayerStackWidget::onLayerDestroyed(QObject *obj) {
if (obj == _specialLayer) {
_specialLayer = nullptr;
hideAll();
} else if (obj == currentLayer()) {
_layers.pop_back();
if (auto newLayer = currentLayer()) {
newLayer->parentResized();
if (!_background->animating()) {
newLayer->show();
showFinished();
}
} else if (!_specialLayer) {
hideAll();
}
} else {
for (auto i = _layers.begin(), e = _layers.end(); i != e; ++i) {
if (obj == *i) {
_layers.erase(i);
break;
}
}
}
}
LayerStackWidget::~LayerStackWidget() {
if (App::wnd()) App::wnd()->noLayerStack(this);
}
MediaPreviewWidget::MediaPreviewWidget(QWidget *parent, gsl::not_null<Window::Controller*> controller) : TWidget(parent)
, _controller(controller)
, _emojiSize(Ui::Emoji::Size(Ui::Emoji::Index() + 1) / cIntRetinaFactor()) {
setAttribute(Qt::WA_TransparentForMouseEvents);
subscribe(AuthSession::CurrentDownloaderTaskFinished(), [this] { update(); });
}
void MediaPreviewWidget::paintEvent(QPaintEvent *e) {
Painter p(this);
QRect r(e->rect());
auto image = currentImage();
int w = image.width() / cIntRetinaFactor(), h = image.height() / cIntRetinaFactor();
auto shown = _a_shown.current(getms(), _hiding ? 0. : 1.);
if (!_a_shown.animating()) {
if (_hiding) {
hide();
_controller->disableGifPauseReason(Window::GifPauseReason::MediaPreview);
return;
}
} else {
p.setOpacity(shown);
// w = qMax(qRound(w * (st::stickerPreviewMin + ((1. - st::stickerPreviewMin) * shown)) / 2.) * 2 + int(w % 2), 1);
// h = qMax(qRound(h * (st::stickerPreviewMin + ((1. - st::stickerPreviewMin) * shown)) / 2.) * 2 + int(h % 2), 1);
}
p.fillRect(r, st::stickerPreviewBg);
p.drawPixmap((width() - w) / 2, (height() - h) / 2, image);
if (!_emojiList.isEmpty()) {
auto emojiCount = _emojiList.size();
auto emojiWidth = (emojiCount * _emojiSize) + (emojiCount - 1) * st::stickerEmojiSkip;
auto emojiLeft = (width() - emojiWidth) / 2;
auto esize = Ui::Emoji::Size(Ui::Emoji::Index() + 1);
for_const (auto emoji, _emojiList) {
p.drawPixmapLeft(emojiLeft, (height() - h) / 2 - (_emojiSize * 2), width(), App::emojiLarge(), QRect(emoji->x() * esize, emoji->y() * esize, esize, esize));
emojiLeft += _emojiSize + st::stickerEmojiSkip;
}
}
}
void MediaPreviewWidget::resizeEvent(QResizeEvent *e) {
update();
}
void MediaPreviewWidget::showPreview(DocumentData *document) {
if (!document || (!document->isAnimation() && !document->sticker()) || document->isRoundVideo()) {
hidePreview();
return;
}
startShow();
_photo = nullptr;
_document = document;
fillEmojiString();
resetGifAndCache();
}
void MediaPreviewWidget::showPreview(PhotoData *photo) {
if (!photo || photo->full->isNull()) {
hidePreview();
return;
}
startShow();
_photo = photo;
_document = nullptr;
fillEmojiString();
resetGifAndCache();
}
void MediaPreviewWidget::startShow() {
_cache = QPixmap();
if (isHidden() || _a_shown.animating()) {
if (isHidden()) {
show();
_controller->enableGifPauseReason(Window::GifPauseReason::MediaPreview);
}
_hiding = false;
_a_shown.start([this] { update(); }, 0., 1., st::stickerPreviewDuration);
} else {
update();
}
}
void MediaPreviewWidget::hidePreview() {
if (isHidden()) {
return;
}
if (_gif) _cache = currentImage();
_hiding = true;
_a_shown.start([this] { update(); }, 1., 0., st::stickerPreviewDuration);
_photo = nullptr;
_document = nullptr;
resetGifAndCache();
}
void MediaPreviewWidget::fillEmojiString() {
auto getStickerEmojiList = [this](uint64 setId) {
QList<EmojiPtr> result;
auto &sets = Global::StickerSets();
auto it = sets.constFind(setId);
if (it == sets.cend()) {
return result;
}
for (auto i = it->emoji.cbegin(), e = it->emoji.cend(); i != e; ++i) {
for_const (auto document, *i) {
if (document == _document) {
result.append(i.key());
if (result.size() >= kStickerPreviewEmojiLimit) {
return result;
}
}
}
}
return result;
};
if (_photo) {
_emojiList.clear();
} else if (auto sticker = _document->sticker()) {
auto &inputSet = sticker->set;
if (inputSet.type() == mtpc_inputStickerSetID) {
_emojiList = getStickerEmojiList(inputSet.c_inputStickerSetID().vid.v);
} else {
_emojiList.clear();
if (auto emoji = Ui::Emoji::Find(sticker->alt)) {
_emojiList.append(emoji);
}
}
} else {
_emojiList.clear();
}
}
void MediaPreviewWidget::resetGifAndCache() {
_gif.reset();
_cacheStatus = CacheNotLoaded;
_cachedSize = QSize();
}
QSize MediaPreviewWidget::currentDimensions() const {
if (!_cachedSize.isEmpty()) {
return _cachedSize;
}
if (!_document && !_photo) {
_cachedSize = QSize(_cache.width() / cIntRetinaFactor(), _cache.height() / cIntRetinaFactor());
return _cachedSize;
}
QSize result, box;
if (_photo) {
result = QSize(_photo->full->width(), _photo->full->height());
box = QSize(width() - 2 * st::boxVerticalMargin, height() - 2 * st::boxVerticalMargin);
} else {
result = _document->dimensions;
if (_gif && _gif->ready()) {
result = QSize(_gif->width(), _gif->height());
}
if (_document->sticker()) {
box = QSize(st::maxStickerSize, st::maxStickerSize);
} else {
box = QSize(2 * st::maxStickerSize, 2 * st::maxStickerSize);
}
}
result = QSize(qMax(convertScale(result.width()), 1), qMax(convertScale(result.height()), 1));
if (result.width() > box.width()) {
result.setHeight(qMax((box.width() * result.height()) / result.width(), 1));
result.setWidth(box.width());
}
if (result.height() > box.height()) {
result.setWidth(qMax((box.height() * result.width()) / result.height(), 1));
result.setHeight(box.height());
}
if (_photo) {
_cachedSize = result;
}
return result;
}
QPixmap MediaPreviewWidget::currentImage() const {
if (_document) {
if (_document->sticker()) {
if (_cacheStatus != CacheLoaded) {
_document->checkSticker();
if (_document->sticker()->img->isNull()) {
if (_cacheStatus != CacheThumbLoaded && _document->thumb->loaded()) {
QSize s = currentDimensions();
_cache = _document->thumb->pixBlurred(s.width(), s.height());
_cacheStatus = CacheThumbLoaded;
}
} else {
QSize s = currentDimensions();
_cache = _document->sticker()->img->pix(s.width(), s.height());
_cacheStatus = CacheLoaded;
}
}
} else {
_document->automaticLoad(nullptr);
if (_document->loaded()) {
if (!_gif && !_gif.isBad()) {
auto that = const_cast<MediaPreviewWidget*>(this);
that->_gif = Media::Clip::MakeReader(_document, FullMsgId(), [this, that](Media::Clip::Notification notification) {
that->clipCallback(notification);
});
if (_gif) _gif->setAutoplay();
}
}
if (_gif && _gif->started()) {
auto s = currentDimensions();
auto paused = _controller->isGifPausedAtLeastFor(Window::GifPauseReason::MediaPreview);
return _gif->current(s.width(), s.height(), s.width(), s.height(), ImageRoundRadius::None, ImageRoundCorner::None, paused ? 0 : getms());
}
if (_cacheStatus != CacheThumbLoaded && _document->thumb->loaded()) {
QSize s = currentDimensions();
_cache = _document->thumb->pixBlurred(s.width(), s.height());
_cacheStatus = CacheThumbLoaded;
}
}
} else if (_photo) {
if (_cacheStatus != CacheLoaded) {
if (_photo->full->loaded()) {
QSize s = currentDimensions();
_cache = _photo->full->pix(s.width(), s.height());
_cacheStatus = CacheLoaded;
} else {
if (_cacheStatus != CacheThumbLoaded && _photo->thumb->loaded()) {
QSize s = currentDimensions();
_cache = _photo->thumb->pixBlurred(s.width(), s.height());
_cacheStatus = CacheThumbLoaded;
}
_photo->thumb->load();
_photo->full->load();
}
}
}
return _cache;
}
void MediaPreviewWidget::clipCallback(Media::Clip::Notification notification) {
using namespace Media::Clip;
switch (notification) {
case NotificationReinit: {
if (_gif && _gif->state() == State::Error) {
_gif.setBad();
}
if (_gif && _gif->ready() && !_gif->started()) {
QSize s = currentDimensions();
_gif->start(s.width(), s.height(), s.width(), s.height(), ImageRoundRadius::None, ImageRoundCorner::None);
}
update();
} break;
case NotificationRepaint: {
if (_gif && !_gif->currentDisplayed()) {
update();
}
} break;
}
}
MediaPreviewWidget::~MediaPreviewWidget() {
}