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Code Issues Releases Wiki Activity

Cross-fade login QR.

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This commit is contained in:
John Preston
2019-11-26 17:27:09 +03:00
parent f4bf79b067
commit a0152557ec
11 changed files with 78 additions and 41 deletions
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60
Telegram/SourceFiles/intro/intro_qr.cpp
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@@ -56,7 +56,14 @@ namespace {
if (max > 0 && data.size * pixel > max) {
pixel = std::max(max / data.size, 1);
}
return TelegramQrExact(data, pixel * style::DevicePixelRatio());
const auto qr = TelegramQrExact(data, pixel * style::DevicePixelRatio());
auto result = QImage(qr.size(), QImage::Format_ARGB32_Premultiplied);
result.fill(st::windowBg->c);
{
auto p = QPainter(&result);
p.drawImage(QRect(QPoint(), qr.size()), qr);
}
return result;
}
[[nodiscard]] not_null<Ui::RpWidget*> PrepareQrWidget(
@@ -67,8 +74,10 @@ namespace {
: waiting(callback, st::defaultInfiniteRadialAnimation) {
}
QImage previous;
QImage qr;
QImage center;
Ui::Animations::Simple shown;
Ui::InfiniteRadialAnimation waiting;
};
auto qrs = std::move(
@@ -92,9 +101,15 @@ namespace {
) | rpl::map([](const Qr::Data &code, const auto &) {
return TelegramQr(code, st::introQrPixel, st::introQrMaxSize);
}) | rpl::start_with_next([=](QImage &&image) {
state->previous = std::move(state->qr);
state->qr = std::move(image);
state->waiting.stop();
result->update();
state->shown.stop();
state->shown.start(
[=] { result->update(); },
0.,
1.,
st::fadeWrapDuration);
}, result->lifetime());
std::move(
palettes
@@ -106,7 +121,24 @@ namespace {
result->paintRequest(
) | rpl::start_with_next([=](QRect clip) {
auto p = QPainter(result);
auto rect = QRect(
const auto shown = state->qr.isNull() ? 0. : state->shown.value(1.);
if (!state->qr.isNull()) {
const auto size = state->qr.size() / cIntRetinaFactor();
const auto qr = QRect(
(result->width() - size.width()) / 2,
(result->height() - size.height()) / 2,
size.width(),
size.height());
if (shown == 1.) {
state->previous = QImage();
} else if (!state->previous.isNull()) {
p.drawImage(qr, state->previous);
}
p.setOpacity(shown);
p.drawImage(qr, state->qr);
p.setOpacity(1.);
}
const auto rect = QRect(
(result->width() - st::introQrCenterSize) / 2,
(result->height() - st::introQrCenterSize) / 2,
st::introQrCenterSize,
@@ -119,7 +151,7 @@ namespace {
auto pen = st::activeButtonBg->p;
pen.setWidth(line);
pen.setCapStyle(Qt::RoundCap);
p.setOpacity(radial.shown);
p.setOpacity(radial.shown * (1. - shown));
p.setPen(pen);
p.drawArc(
rect.marginsAdded({ line, line, line, line }),
@@ -127,16 +159,6 @@ namespace {
radial.arcLength);
p.setOpacity(1.);
}
if (!state->qr.isNull()) {
const auto size = state->qr.size() / cIntRetinaFactor();
p.drawImage(
QRect(
(result->width() - size.width()) / 2,
(result->height() - size.height()) / 2,
size.width(),
size.height()),
state->qr);
}
}, result->lifetime());
return result;
}
@@ -148,7 +170,7 @@ QrWidget::QrWidget(
not_null<Main::Account*> account,
not_null<Data*> data)
: Step(parent, account, data)
, _refreshTimer([=] { refreshCode(); }) {
, _refreshTimer([=] { refreshCode(); }) {
setTitleText(rpl::single(QString()));
setDescriptionText(rpl::single(QString()));
setErrorCentered(true);
@@ -163,6 +185,10 @@ QrWidget::QrWidget(
refreshCode();
}
int QrWidget::errorTop() const {
return contentTop() + st::introQrErrorTop;
}
void QrWidget::checkForTokenUpdate(const MTPUpdates &updates) {
updates.match([&](const MTPDupdateShort &data) {
checkForTokenUpdate(data.vupdate());
@@ -256,9 +282,7 @@ void QrWidget::setupControls() {
contentTop() + st::introQrSkipTop);
}, skip->lifetime());
skip->setClickedCallback([=] {
goNext<PhoneWidget>();
});
skip->setClickedCallback([=] { submit(); });
}
void QrWidget::refreshCode() {