280 lines
6.8 KiB
C++
280 lines
6.8 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "ui/controls/chat_service_checkbox.h"
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#include "ui/widgets/checkbox.h"
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#include "ui/painter.h"
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#include "styles/style_layers.h"
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#include <QCoreApplication>
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namespace Ui {
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namespace {
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constexpr auto kAnimationTimerDelta = crl::time(7);
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class ServiceCheck final : public AbstractCheckView {
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public:
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ServiceCheck(const style::ServiceCheck &st, bool checked);
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QSize getSize() const override;
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void paint(
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QPainter &p,
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int left,
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int top,
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int outerWidth) override;
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QImage prepareRippleMask() const override;
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bool checkRippleStartPosition(QPoint position) const override;
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private:
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class Generator {
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public:
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Generator();
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void paintFrame(
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QPainter &p,
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int left,
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int top,
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not_null<const style::ServiceCheck*> st,
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float64 toggled);
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void invalidate();
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private:
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struct Frames {
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QImage image;
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std::vector<bool> ready;
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};
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not_null<Frames*> framesForStyle(
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not_null<const style::ServiceCheck*> st);
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static void FillFrame(
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QImage &image,
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not_null<const style::ServiceCheck*> st,
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int index,
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int count);
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static void PaintFillingFrame(
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QPainter &p,
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not_null<const style::ServiceCheck*> st,
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float64 progress);
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static void PaintCheckingFrame(
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QPainter &p,
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not_null<const style::ServiceCheck*> st,
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float64 progress);
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base::flat_map<not_null<const style::ServiceCheck*>, Frames> _data;
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rpl::lifetime _lifetime;
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};
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static Generator &Frames();
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const style::ServiceCheck &_st;
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};
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ServiceCheck::Generator::Generator() {
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style::PaletteChanged(
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) | rpl::start_with_next([=] {
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invalidate();
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}, _lifetime);
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}
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auto ServiceCheck::Generator::framesForStyle(
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not_null<const style::ServiceCheck*> st) -> not_null<Frames*> {
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if (const auto i = _data.find(st); i != _data.end()) {
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return &i->second;
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}
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const auto result = &_data.emplace(st, Frames()).first->second;
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const auto size = st->diameter;
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const auto count = (st->duration / kAnimationTimerDelta) + 2;
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result->image = QImage(
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QSize(count * size, size) * style::DevicePixelRatio(),
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QImage::Format_ARGB32_Premultiplied);
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result->image.fill(Qt::transparent);
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result->image.setDevicePixelRatio(style::DevicePixelRatio());
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result->ready.resize(count);
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return result;
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}
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void ServiceCheck::Generator::FillFrame(
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QImage &image,
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not_null<const style::ServiceCheck*> st,
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int index,
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int count) {
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Expects(count > 1);
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Expects(index >= 0 && index < count);
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auto p = QPainter(&image);
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PainterHighQualityEnabler hq(p);
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p.translate(index * st->diameter, 0);
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const auto progress = index / float64(count - 1);
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if (progress > 0.5) {
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PaintCheckingFrame(p, st, (progress - 0.5) * 2);
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} else {
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PaintFillingFrame(p, st, progress * 2);
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}
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}
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void ServiceCheck::Generator::PaintFillingFrame(
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QPainter &p,
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not_null<const style::ServiceCheck*> st,
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float64 progress) {
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const auto shift = progress * st->shift;
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p.setBrush(st->color);
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p.setPen(Qt::NoPen);
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p.drawEllipse(QRectF(
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shift,
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shift,
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st->diameter - 2 * shift,
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st->diameter - 2 * shift));
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if (progress < 1.) {
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const auto remove = progress * (st->diameter / 2. - st->thickness);
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p.setCompositionMode(QPainter::CompositionMode_Source);
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p.setPen(Qt::NoPen);
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p.setBrush(Qt::transparent);
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p.drawEllipse(QRectF(
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st->thickness + remove,
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st->thickness + remove,
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st->diameter - 2 * (st->thickness + remove),
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st->diameter - 2 * (st->thickness + remove)));
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}
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}
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void ServiceCheck::Generator::PaintCheckingFrame(
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QPainter &p,
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not_null<const style::ServiceCheck*> st,
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float64 progress) {
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const auto shift = (1. - progress) * st->shift;
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p.setBrush(st->color);
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p.setPen(Qt::NoPen);
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p.drawEllipse(QRectF(
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shift,
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shift,
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st->diameter - 2 * shift,
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st->diameter - 2 * shift));
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if (progress > 0.) {
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const auto tip = QPointF(st->tip.x(), st->tip.y());
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const auto left = tip - QPointF(st->small, st->small) * progress;
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const auto right = tip - QPointF(-st->large, st->large) * progress;
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p.setCompositionMode(QPainter::CompositionMode_Source);
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p.setBrush(Qt::NoBrush);
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auto pen = QPen(Qt::transparent);
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pen.setWidth(st->stroke);
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pen.setCapStyle(Qt::RoundCap);
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pen.setJoinStyle(Qt::RoundJoin);
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p.setPen(pen);
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auto path = QPainterPath();
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path.moveTo(left);
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path.lineTo(tip);
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path.lineTo(right);
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p.drawPath(path);
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}
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}
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void ServiceCheck::Generator::paintFrame(
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QPainter &p,
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int left,
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int top,
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not_null<const style::ServiceCheck*> st,
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float64 toggled) {
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const auto frames = framesForStyle(st);
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auto &image = frames->image;
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const auto count = int(frames->ready.size());
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const auto index = int(base::SafeRound(toggled * (count - 1)));
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Assert(index >= 0 && index < count);
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if (!frames->ready[index]) {
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frames->ready[index] = true;
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FillFrame(image, st, index, count);
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}
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const auto size = st->diameter;
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const auto part = size * style::DevicePixelRatio();
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p.drawImage(
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QPoint(left, top),
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image,
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QRect(index * part, 0, part, part));
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}
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void ServiceCheck::Generator::invalidate() {
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_data.clear();
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}
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ServiceCheck::Generator &ServiceCheck::Frames() {
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static const auto Instance = Ui::CreateChild<Generator>(
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QCoreApplication::instance());
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return *Instance;
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}
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ServiceCheck::ServiceCheck(
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const style::ServiceCheck &st,
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bool checked)
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: AbstractCheckView(st.duration, checked, nullptr)
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, _st(st) {
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}
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QSize ServiceCheck::getSize() const {
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const auto inner = QRect(0, 0, _st.diameter, _st.diameter);
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return inner.marginsAdded(_st.margin).size();
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}
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void ServiceCheck::paint(
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QPainter &p,
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int left,
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int top,
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int outerWidth) {
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Frames().paintFrame(
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p,
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left + _st.margin.left(),
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top + _st.margin.top(),
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&_st,
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currentAnimationValue());
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}
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QImage ServiceCheck::prepareRippleMask() const {
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return QImage();
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}
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bool ServiceCheck::checkRippleStartPosition(QPoint position) const {
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return false;
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}
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void SetupBackground(not_null<Checkbox*> checkbox, Fn<QColor()> bg) {
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checkbox->paintRequest(
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) | rpl::map(
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bg ? bg : [] { return st::msgServiceBg->c; }
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) | rpl::filter([=](const QColor &color) {
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return color.alpha() > 0;
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}) | rpl::start_with_next([=](const QColor &color) {
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auto p = QPainter(checkbox);
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PainterHighQualityEnabler hq(p);
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p.setPen(Qt::NoPen);
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p.setBrush(color);
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const auto radius = checkbox->height() / 2.;
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p.drawRoundedRect(checkbox->rect(), radius, radius);
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}, checkbox->lifetime());
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}
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} // namespace
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[[nodiscard]] object_ptr<Checkbox> MakeChatServiceCheckbox(
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QWidget *parent,
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const QString &text,
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const style::Checkbox &st,
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const style::ServiceCheck &stCheck,
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bool checked,
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Fn<QColor()> bg) {
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auto result = object_ptr<Checkbox>(
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parent,
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text,
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st,
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std::make_unique<ServiceCheck>(stCheck, checked));
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SetupBackground(result.data(), std::move(bg));
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return result;
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}
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} // namespace Ui
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