tdesktop/Telegram/SourceFiles/boxes/background_preview_box.cpp

793 lines
22 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "boxes/background_preview_box.h"
#include "lang/lang_keys.h"
#include "mainwidget.h"
#include "window/themes/window_theme.h"
#include "ui/toast/toast.h"
#include "ui/image/image.h"
#include "ui/widgets/checkbox.h"
#include "history/history.h"
#include "history/history_message.h"
#include "history/view/history_view_message.h"
#include "auth_session.h"
#include "apiwrap.h"
#include "data/data_session.h"
#include "data/data_user.h"
#include "data/data_document.h"
#include "boxes/confirm_box.h"
#include "boxes/background_preview_box.h"
#include "styles/style_history.h"
#include "styles/style_boxes.h"
namespace {
constexpr auto kMaxWallPaperSlugLength = 255;
class ServiceCheck : public Ui::AbstractCheckView {
public:
ServiceCheck(const style::ServiceCheck &st, bool checked);
QSize getSize() const override;
void paint(
Painter &p,
int left,
int top,
int outerWidth,
crl::time ms) override;
QImage prepareRippleMask() const override;
bool checkRippleStartPosition(QPoint position) const override;
private:
class Generator {
public:
Generator();
void paintFrame(
Painter &p,
int left,
int top,
not_null<const style::ServiceCheck*> st,
float64 toggled);
void invalidate();
private:
struct Frames {
QImage image;
std::vector<bool> ready;
};
not_null<Frames*> framesForStyle(
not_null<const style::ServiceCheck*> st);
static void FillFrame(
QImage &image,
not_null<const style::ServiceCheck*> st,
int index,
int count);
static void PaintFillingFrame(
Painter &p,
not_null<const style::ServiceCheck*> st,
float64 progress);
static void PaintCheckingFrame(
Painter &p,
not_null<const style::ServiceCheck*> st,
float64 progress);
base::flat_map<not_null<const style::ServiceCheck*>, Frames> _data;
rpl::lifetime _lifetime;
};
static Generator &Frames();
const style::ServiceCheck &_st;
};
ServiceCheck::Generator::Generator() {
*_lifetime.make_state<base::Subscription>() = Window::Theme::Background(
)->add_subscription([=](const Window::Theme::BackgroundUpdate &update) {
if (update.paletteChanged()) {
invalidate();
}
});
}
auto ServiceCheck::Generator::framesForStyle(
not_null<const style::ServiceCheck*> st) -> not_null<Frames*> {
if (const auto i = _data.find(st); i != _data.end()) {
return &i->second;
}
const auto result = &_data.emplace(st, Frames()).first->second;
const auto size = st->diameter;
const auto count = (st->duration / AnimationTimerDelta) + 2;
result->image = QImage(
QSize(count * size, size) * cIntRetinaFactor(),
QImage::Format_ARGB32_Premultiplied);
result->image.fill(Qt::transparent);
result->image.setDevicePixelRatio(cRetinaFactor());
result->ready.resize(count);
return result;
}
void ServiceCheck::Generator::FillFrame(
QImage &image,
not_null<const style::ServiceCheck*> st,
int index,
int count) {
Expects(count > 1);
Expects(index >= 0 && index < count);
Painter p(&image);
PainterHighQualityEnabler hq(p);
p.translate(index * st->diameter, 0);
const auto progress = index / float64(count - 1);
if (progress > 0.5) {
PaintCheckingFrame(p, st, (progress - 0.5) * 2);
} else {
PaintFillingFrame(p, st, progress * 2);
}
}
void ServiceCheck::Generator::PaintFillingFrame(
Painter &p,
not_null<const style::ServiceCheck*> st,
float64 progress) {
const auto shift = progress * st->shift;
p.setBrush(st->color);
p.setPen(Qt::NoPen);
p.drawEllipse(QRectF(
shift,
shift,
st->diameter - 2 * shift,
st->diameter - 2 * shift));
if (progress < 1.) {
const auto remove = progress * (st->diameter / 2. - st->thickness);
p.setCompositionMode(QPainter::CompositionMode_Source);
p.setPen(Qt::NoPen);
p.setBrush(Qt::transparent);
p.drawEllipse(QRectF(
st->thickness + remove,
st->thickness + remove,
st->diameter - 2 * (st->thickness + remove),
st->diameter - 2 * (st->thickness + remove)));
}
}
void ServiceCheck::Generator::PaintCheckingFrame(
Painter &p,
not_null<const style::ServiceCheck*> st,
float64 progress) {
const auto shift = (1. - progress) * st->shift;
p.setBrush(st->color);
p.setPen(Qt::NoPen);
p.drawEllipse(QRectF(
shift,
shift,
st->diameter - 2 * shift,
st->diameter - 2 * shift));
if (progress > 0.) {
const auto tip = QPointF(st->tip.x(), st->tip.y());
const auto left = tip - QPointF(st->small, st->small) * progress;
const auto right = tip - QPointF(-st->large, st->large) * progress;
p.setCompositionMode(QPainter::CompositionMode_Source);
p.setBrush(Qt::NoBrush);
auto pen = QPen(Qt::transparent);
pen.setWidth(st->stroke);
pen.setCapStyle(Qt::RoundCap);
pen.setJoinStyle(Qt::RoundJoin);
p.setPen(pen);
auto path = QPainterPath();
path.moveTo(left);
path.lineTo(tip);
path.lineTo(right);
p.drawPath(path);
}
}
void ServiceCheck::Generator::paintFrame(
Painter &p,
int left,
int top,
not_null<const style::ServiceCheck*> st,
float64 toggled) {
const auto frames = framesForStyle(st);
auto &image = frames->image;
const auto count = int(frames->ready.size());
const auto index = int(std::round(toggled * (count - 1)));
Assert(index >= 0 && index < count);
if (!frames->ready[index]) {
frames->ready[index] = true;
FillFrame(image, st, index, count);
}
const auto size = st->diameter;
const auto part = size * cIntRetinaFactor();
p.drawImage(
QPoint(left, top),
image,
QRect(index * part, 0, part, part));
}
void ServiceCheck::Generator::invalidate() {
_data.clear();
}
ServiceCheck::Generator &ServiceCheck::Frames() {
static const auto Instance = Ui::CreateChild<Generator>(
QApplication::instance());
return *Instance;
}
ServiceCheck::ServiceCheck(
const style::ServiceCheck &st,
bool checked)
: AbstractCheckView(st.duration, checked, nullptr)
, _st(st) {
}
QSize ServiceCheck::getSize() const {
const auto inner = QRect(0, 0, _st.diameter, _st.diameter);
return inner.marginsAdded(_st.margin).size();
}
void ServiceCheck::paint(
Painter &p,
int left,
int top,
int outerWidth,
crl::time ms) {
Frames().paintFrame(
p,
left + _st.margin.left(),
top + _st.margin.top(),
&_st,
currentAnimationValue(ms));
}
QImage ServiceCheck::prepareRippleMask() const {
return QImage();
}
bool ServiceCheck::checkRippleStartPosition(QPoint position) const {
return false;
}
[[nodiscard]] bool IsValidWallPaperSlug(const QString &slug) {
if (slug.isEmpty() || slug.size() > kMaxWallPaperSlugLength) {
return false;
}
return ranges::find_if(slug, [](QChar ch) {
return (ch != '.')
&& (ch != '_')
&& (ch != '-')
&& (ch < '0' || ch > '9')
&& (ch < 'a' || ch > 'z')
&& (ch < 'A' || ch > 'Z');
}) == slug.end();
}
AdminLog::OwnedItem GenerateTextItem(
not_null<HistoryView::ElementDelegate*> delegate,
not_null<History*> history,
const QString &text,
bool out) {
Expects(history->peer->isUser());
using Flag = MTPDmessage::Flag;
static auto id = ServerMaxMsgId + (ServerMaxMsgId / 3);
const auto flags = Flag::f_entities
| Flag::f_from_id
| (out ? Flag::f_out : Flag(0));
const auto replyTo = 0;
const auto viaBotId = 0;
const auto item = new HistoryMessage(
history,
++id,
flags,
replyTo,
viaBotId,
unixtime(),
out ? history->session().userId() : peerToUser(history->peer->id),
QString(),
TextWithEntities{ TextUtilities::Clean(text) });
return AdminLog::OwnedItem(delegate, item);
}
QImage PrepareScaledNonPattern(
const QImage &image,
Images::Option blur) {
const auto size = st::boxWideWidth;
const auto width = std::max(image.width(), 1);
const auto height = std::max(image.height(), 1);
const auto takeWidth = (width > height)
? (width * size / height)
: size;
const auto takeHeight = (width > height)
? size
: (height * size / width);
return Images::prepare(
image,
takeWidth * cIntRetinaFactor(),
takeHeight * cIntRetinaFactor(),
Images::Option::Smooth
| Images::Option::TransparentBackground
| blur,
size,
size);
}
QImage ColorizePattern(QImage image, QColor color) {
if (image.format() != QImage::Format_ARGB32_Premultiplied) {
image = std::move(image).convertToFormat(
QImage::Format_ARGB32_Premultiplied);
}
// Similar to style::colorizeImage.
// But style::colorizeImage takes pattern with all pixels having the
// same components value, from (0, 0, 0, 0) to (255, 255, 255, 255).
//
// While in patterns we have different value ranges, usually they are
// from (0, 0, 0, 0) to (0, 0, 0, 255), so we should use only 'alpha'.
const auto width = image.width();
const auto height = image.height();
const auto pattern = anim::shifted(color);
const auto resultBytesPerPixel = (image.depth() >> 3);
constexpr auto resultIntsPerPixel = 1;
const auto resultIntsPerLine = (image.bytesPerLine() >> 2);
const auto resultIntsAdded = resultIntsPerLine - width * resultIntsPerPixel;
auto resultInts = reinterpret_cast<uint32*>(image.bits());
Assert(resultIntsAdded >= 0);
Assert(image.depth() == static_cast<int>((resultIntsPerPixel * sizeof(uint32)) << 3));
Assert(image.bytesPerLine() == (resultIntsPerLine << 2));
const auto maskBytesPerPixel = (image.depth() >> 3);
const auto maskBytesPerLine = image.bytesPerLine();
const auto maskBytesAdded = maskBytesPerLine - width * maskBytesPerPixel;
// We want to read the last byte of four available.
// This is the difference with style::colorizeImage.
auto maskBytes = image.constBits() + (maskBytesPerPixel - 1);
Assert(maskBytesAdded >= 0);
Assert(image.depth() == (maskBytesPerPixel << 3));
for (auto y = 0; y != height; ++y) {
for (auto x = 0; x != width; ++x) {
auto maskOpacity = static_cast<anim::ShiftedMultiplier>(*maskBytes) + 1;
*resultInts = anim::unshifted(pattern * maskOpacity);
maskBytes += maskBytesPerPixel;
resultInts += resultIntsPerPixel;
}
maskBytes += maskBytesAdded;
resultInts += resultIntsAdded;
}
return image;
}
QImage PrepareScaledFromFull(
const QImage &image,
std::optional<QColor> patternBackground,
Images::Option blur = Images::Option(0)) {
auto result = PrepareScaledNonPattern(image, blur);
if (patternBackground) {
result = ColorizePattern(
std::move(result),
Data::PatternColor(*patternBackground));
}
return std::move(result).convertToFormat(
QImage::Format_ARGB32_Premultiplied);
}
} // namespace
BackgroundPreviewBox::BackgroundPreviewBox(
QWidget*,
const Data::WallPaper &paper)
: _text1(GenerateTextItem(
this,
Auth().data().history(peerFromUser(PeerData::kServiceNotificationsId)),
lang(lng_background_text1),
false))
, _text2(GenerateTextItem(
this,
Auth().data().history(peerFromUser(PeerData::kServiceNotificationsId)),
lang(lng_background_text2),
true))
, _paper(paper)
, _radial(animation(this, &BackgroundPreviewBox::step_radial)) {
subscribe(Auth().downloaderTaskFinished(), [=] { update(); });
}
void BackgroundPreviewBox::prepare() {
setTitle(langFactory(lng_background_header));
addButton(langFactory(lng_background_apply), [=] { apply(); });
addButton(langFactory(lng_cancel), [=] { closeBox(); });
if (_paper.hasShareUrl()) {
addLeftButton(langFactory(lng_background_share), [=] { share(); });
}
updateServiceBg(_paper.backgroundColor());
_paper.loadThumbnail();
_paper.loadDocument();
if (_paper.document() && _paper.document()->loading()) {
_radial.start(_paper.document()->progress());
}
if (_paper.thumbnail() && !_paper.isPattern()) {
createBlurCheckbox();
}
setScaledFromThumb();
checkLoadedDocument();
_text1->setDisplayDate(true);
_text1->initDimensions();
_text1->resizeGetHeight(st::boxWideWidth);
_text2->initDimensions();
_text2->resizeGetHeight(st::boxWideWidth);
setDimensions(st::boxWideWidth, st::boxWideWidth);
}
void BackgroundPreviewBox::createBlurCheckbox() {
_blur.create(
this,
lang(lng_background_blur),
st::backgroundCheckbox,
std::make_unique<ServiceCheck>(
st::backgroundCheck,
_paper.isBlurred()));
rpl::combine(
sizeValue(),
_blur->sizeValue()
) | rpl::start_with_next([=](QSize outer, QSize inner) {
_blur->move(
(outer.width() - inner.width()) / 2,
outer.height() - st::historyPaddingBottom - inner.height());
}, _blur->lifetime());
_blur->paintRequest(
) | rpl::filter([=] {
return _serviceBg.has_value();
}) | rpl::start_with_next([=] {
Painter p(_blur.data());
PainterHighQualityEnabler hq(p);
p.setPen(Qt::NoPen);
p.setBrush(*_serviceBg);
p.drawRoundedRect(
_blur->rect(),
st::historyMessageRadius,
st::historyMessageRadius);
}, _blur->lifetime());
_blur->checkedChanges(
) | rpl::start_with_next([=](bool checked) {
checkBlurAnimationStart();
update();
}, lifetime());
_blur->setDisabled(true);
}
void BackgroundPreviewBox::apply() {
const auto install = (_paper.id() != Window::Theme::Background()->id())
&& Data::IsCloudWallPaper(_paper);
App::main()->setChatBackground(_paper, std::move(_full));
if (install) {
Auth().api().request(MTPaccount_InstallWallPaper(
_paper.mtpInput(),
_paper.mtpSettings()
)).send();
}
closeBox();
}
void BackgroundPreviewBox::share() {
QApplication::clipboard()->setText(_paper.shareUrl());
Ui::Toast::Show(lang(lng_background_link_copied));
}
void BackgroundPreviewBox::paintEvent(QPaintEvent *e) {
Painter p(this);
const auto ms = crl::now();
const auto color = _paper.backgroundColor();
if (color) {
p.fillRect(e->rect(), *color);
}
if (!color || _paper.isPattern()) {
if (!_scaled.isNull() || setScaledFromThumb()) {
paintImage(p, ms);
paintRadial(p, ms);
} else if (!color) {
p.fillRect(e->rect(), st::boxBg);
return;
} else {
// Progress of pattern loading.
paintRadial(p, ms);
}
}
paintTexts(p, ms);
}
void BackgroundPreviewBox::paintImage(Painter &p, crl::time ms) {
Expects(!_scaled.isNull());
const auto master = _paper.isPattern()
? std::clamp(_paper.patternIntensity() / 100., 0., 1.)
: 1.;
const auto factor = cIntRetinaFactor();
const auto size = st::boxWideWidth;
const auto from = QRect(
0,
(size - height()) / 2 * factor,
size * factor,
height() * factor);
const auto guard = gsl::finally([&] { p.setOpacity(1.); });
const auto fade = _fadeIn.current(ms, 1.);
if (fade < 1. && !_fadeOutThumbnail.isNull()) {
p.drawPixmap(rect(), _fadeOutThumbnail, from);
}
const auto &pixmap = (!_blurred.isNull() && _paper.isBlurred())
? _blurred
: _scaled;
p.setOpacity(master * fade);
p.drawPixmap(rect(), pixmap, from);
checkBlurAnimationStart();
}
void BackgroundPreviewBox::paintRadial(Painter &p, crl::time ms) {
bool radial = false;
float64 radialOpacity = 0;
if (_radial.animating()) {
_radial.step(ms);
radial = _radial.animating();
radialOpacity = _radial.opacity();
}
if (!radial) {
return;
}
auto inner = radialRect();
p.setPen(Qt::NoPen);
p.setOpacity(radialOpacity);
p.setBrush(st::radialBg);
{
PainterHighQualityEnabler hq(p);
p.drawEllipse(inner);
}
p.setOpacity(1);
QRect arc(inner.marginsRemoved(QMargins(st::radialLine, st::radialLine, st::radialLine, st::radialLine)));
_radial.draw(p, arc, st::radialLine, st::radialFg);
}
int BackgroundPreviewBox::textsTop() const {
const auto bottom = _blur ? _blur->y() : height();
return bottom
- st::historyPaddingBottom
- _text1->height()
- _text2->height();
}
QRect BackgroundPreviewBox::radialRect() const {
const auto available = textsTop() - st::historyPaddingBottom;
return QRect(
QPoint(
(width() - st::radialSize.width()) / 2,
(available - st::radialSize.height()) / 2),
st::radialSize);
}
void BackgroundPreviewBox::paintTexts(Painter &p, crl::time ms) {
const auto height1 = _text1->height();
const auto height2 = _text2->height();
p.translate(0, textsTop());
paintDate(p);
_text1->draw(p, rect(), TextSelection(), ms);
p.translate(0, height1);
_text2->draw(p, rect(), TextSelection(), ms);
p.translate(0, height2);
}
void BackgroundPreviewBox::paintDate(Painter &p) {
const auto date = _text1->Get<HistoryView::DateBadge>();
if (!date || !_serviceBg) {
return;
}
const auto text = date->text;
const auto bubbleHeight = st::msgServicePadding.top() + st::msgServiceFont->height + st::msgServicePadding.bottom();
const auto bubbleTop = st::msgServiceMargin.top();
const auto textWidth = st::msgServiceFont->width(text);
const auto bubbleWidth = st::msgServicePadding.left() + textWidth + st::msgServicePadding.right();
const auto bubbleLeft = (width() - bubbleWidth) / 2;
const auto radius = bubbleHeight / 2;
p.setPen(Qt::NoPen);
p.setBrush(*_serviceBg);
p.drawRoundedRect(bubbleLeft, bubbleTop, bubbleWidth, bubbleHeight, radius, radius);
p.setPen(st::msgServiceFg);
p.setFont(st::msgServiceFont);
p.drawText(bubbleLeft + st::msgServicePadding.left(), bubbleTop + st::msgServicePadding.top() + st::msgServiceFont->ascent, text);
}
void BackgroundPreviewBox::step_radial(crl::time ms, bool timer) {
Expects(_paper.document() != nullptr);
const auto document = _paper.document();
const auto wasAnimating = _radial.animating();
const auto updated = _radial.update(
document->progress(),
!document->loading(),
ms);
if (timer
&& (wasAnimating || _radial.animating())
&& (!anim::Disabled() || updated)) {
update(radialRect());
}
checkLoadedDocument();
}
bool BackgroundPreviewBox::setScaledFromThumb() {
const auto thumbnail = _paper.thumbnail();
if (!thumbnail || !thumbnail->loaded()) {
return false;
} else if (_paper.isPattern() && _paper.document() != nullptr) {
return false;
}
auto scaled = PrepareScaledFromFull(
thumbnail->original(),
patternBackgroundColor(),
_paper.document() ? Images::Option::Blurred : Images::Option(0));
auto blurred = (_paper.document() || _paper.isPattern())
? QImage()
: PrepareScaledNonPattern(
Data::PrepareBlurredBackground(thumbnail->original()),
Images::Option(0));
setScaledFromImage(std::move(scaled), std::move(blurred));
return true;
}
void BackgroundPreviewBox::setScaledFromImage(
QImage &&image,
QImage &&blurred) {
updateServiceBg(Window::Theme::CountAverageColor(image));
if (!_full.isNull()) {
startFadeInFrom(std::move(_scaled));
}
_scaled = App::pixmapFromImageInPlace(std::move(image));
_blurred = App::pixmapFromImageInPlace(std::move(blurred));
if (_blur && (!_paper.document() || !_full.isNull())) {
_blur->setDisabled(false);
}
}
void BackgroundPreviewBox::startFadeInFrom(QPixmap previous) {
_fadeOutThumbnail = std::move(previous);
_fadeIn.start([=] { update(); }, 0., 1., st::backgroundCheck.duration);
}
void BackgroundPreviewBox::checkBlurAnimationStart() {
if (_fadeIn.animating()
|| _blurred.isNull()
|| !_blur
|| _paper.isBlurred() == _blur->checked()) {
return;
}
_paper = _paper.withBlurred(_blur->checked());
startFadeInFrom(_paper.isBlurred() ? _scaled : _blurred);
}
void BackgroundPreviewBox::updateServiceBg(std::optional<QColor> background) {
if (background) {
_serviceBg = Window::Theme::AdjustedColor(
st::msgServiceBg->c,
*background);
}
}
std::optional<QColor> BackgroundPreviewBox::patternBackgroundColor() const {
return _paper.isPattern() ? _paper.backgroundColor() : std::nullopt;
}
void BackgroundPreviewBox::checkLoadedDocument() {
const auto document = _paper.document();
if (!_full.isNull()
|| !document
|| !document->loaded(DocumentData::FilePathResolve::Checked)
|| _generating) {
return;
}
const auto generateCallback = [=](QImage &&image) {
auto [left, right] = base::make_binary_guard();
_generating = std::move(left);
crl::async([
this,
image = std::move(image),
patternBackground = patternBackgroundColor(),
guard = std::move(right)
]() mutable {
auto scaled = PrepareScaledFromFull(image, patternBackground);
const auto ms = crl::now();
auto blurred = patternBackground
? QImage()
: PrepareScaledNonPattern(
Data::PrepareBlurredBackground(image),
Images::Option(0));
crl::on_main(std::move(guard), [
this,
image = std::move(image),
scaled = std::move(scaled),
blurred = std::move(blurred)
]() mutable {
_full = std::move(image);
setScaledFromImage(std::move(scaled), std::move(blurred));
update();
});
});
};
_generating = Data::ReadImageAsync(
document,
Window::Theme::ProcessBackgroundImage,
generateCallback);
}
bool BackgroundPreviewBox::Start(
const QString &slug,
const QMap<QString, QString> &params) {
if (const auto paper = Data::WallPaper::FromColorSlug(slug)) {
Ui::show(Box<BackgroundPreviewBox>(paper->withUrlParams(params)));
return true;
}
if (!IsValidWallPaperSlug(slug)) {
Ui::show(Box<InformBox>(lang(lng_background_bad_link)));
return false;
}
Auth().api().requestWallPaper(slug, [=](const Data::WallPaper &result) {
Ui::show(Box<BackgroundPreviewBox>(result.withUrlParams(params)));
}, [](const RPCError &error) {
Ui::show(Box<InformBox>(lang(lng_background_bad_link)));
});
return true;
}
HistoryView::Context BackgroundPreviewBox::elementContext() {
return HistoryView::Context::ContactPreview;
}
std::unique_ptr<HistoryView::Element> BackgroundPreviewBox::elementCreate(
not_null<HistoryMessage*> message) {
return std::make_unique<HistoryView::Message>(this, message);
}
std::unique_ptr<HistoryView::Element> BackgroundPreviewBox::elementCreate(
not_null<HistoryService*> message) {
Unexpected("Service message in BackgroundPreviewBox.");
}
bool BackgroundPreviewBox::elementUnderCursor(
not_null<const Element*> view) {
return false;
}
void BackgroundPreviewBox::elementAnimationAutoplayAsync(
not_null<const Element*> element) {
}
crl::time BackgroundPreviewBox::elementHighlightTime(
not_null<const Element*> element) {
return crl::time(0);
}
bool BackgroundPreviewBox::elementInSelectionMode() {
return false;
}