tdesktop/Telegram/SourceFiles/window/section_widget.cpp

326 lines
8.9 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 "window/section_widget.h"
#include "mainwidget.h"
#include "ui/ui_utility.h"
#include "ui/chat/chat_theme.h"
#include "data/data_peer.h"
#include "data/data_changes.h"
#include "data/data_session.h"
#include "data/data_cloud_themes.h"
#include "main/main_session.h"
#include "window/section_memento.h"
#include "window/window_slide_animation.h"
#include "window/window_session_controller.h"
#include "window/themes/window_theme.h"
#include <rpl/range.h>
namespace Window {
namespace {
[[nodiscard]] rpl::producer<QString> PeerThemeEmojiValue(
not_null<PeerData*> peer) {
return peer->session().changes().peerFlagsValue(
peer,
Data::PeerUpdate::Flag::ChatThemeEmoji
) | rpl::map([=] {
return peer->themeEmoji();
});
}
[[nodiscard]] auto MaybeChatThemeDataValueFromPeer(
not_null<PeerData*> peer)
-> rpl::producer<std::optional<Data::CloudTheme>> {
return PeerThemeEmojiValue(
peer
) | rpl::map([=](const QString &emoji)
-> rpl::producer<std::optional<Data::CloudTheme>> {
return peer->owner().cloudThemes().themeForEmojiValue(emoji);
}) | rpl::flatten_latest();
}
struct ResolvedTheme {
std::optional<Data::CloudTheme> theme;
bool dark = false;
};
[[nodiscard]] auto MaybeCloudThemeValueFromPeer(
not_null<PeerData*> peer)
-> rpl::producer<ResolvedTheme> {
return rpl::combine(
MaybeChatThemeDataValueFromPeer(peer),
Theme::IsThemeDarkValue() | rpl::distinct_until_changed()
) | rpl::map([](std::optional<Data::CloudTheme> theme, bool night) {
return ResolvedTheme{ std::move(theme), night };
});
}
} // namespace
AbstractSectionWidget::AbstractSectionWidget(
QWidget *parent,
not_null<SessionController*> controller,
rpl::producer<PeerData*> peerForBackground)
: RpWidget(parent)
, _controller(controller) {
std::move(
peerForBackground
) | rpl::map([=](PeerData *peer) -> rpl::producer<> {
if (!peer) {
return rpl::single(rpl::empty) | rpl::then(
controller->defaultChatTheme()->repaintBackgroundRequests()
);
}
return ChatThemeValueFromPeer(
controller,
peer
) | rpl::map([](const std::shared_ptr<Ui::ChatTheme> &theme) {
return rpl::single(rpl::empty) | rpl::then(
theme->repaintBackgroundRequests()
);
}) | rpl::flatten_latest();
}) | rpl::flatten_latest() | rpl::start_with_next([=] {
update();
}, lifetime());
}
Main::Session &AbstractSectionWidget::session() const {
return _controller->session();
}
SectionWidget::SectionWidget(
QWidget *parent,
not_null<Window::SessionController*> controller,
rpl::producer<PeerData*> peerForBackground)
: AbstractSectionWidget(parent, controller, std::move(peerForBackground)) {
}
SectionWidget::SectionWidget(
QWidget *parent,
not_null<Window::SessionController*> controller,
not_null<PeerData*> peerForBackground)
: AbstractSectionWidget(
parent,
controller,
rpl::single(peerForBackground.get())) {
}
void SectionWidget::setGeometryWithTopMoved(
const QRect &newGeometry,
int topDelta) {
_topDelta = topDelta;
bool willBeResized = (size() != newGeometry.size());
if (geometry() != newGeometry) {
auto weak = Ui::MakeWeak(this);
setGeometry(newGeometry);
if (!weak) {
return;
}
}
if (!willBeResized) {
resizeEvent(nullptr);
}
_topDelta = 0;
}
void SectionWidget::showAnimated(
SlideDirection direction,
const SectionSlideParams &params) {
if (_showAnimation) return;
showChildren();
auto myContentCache = grabForShowAnimation(params);
hideChildren();
showAnimatedHook(params);
_showAnimation = std::make_unique<SlideAnimation>();
_showAnimation->setDirection(direction);
_showAnimation->setRepaintCallback([this] { update(); });
_showAnimation->setFinishedCallback([this] { showFinished(); });
_showAnimation->setPixmaps(
params.oldContentCache,
myContentCache);
_showAnimation->setTopBarShadow(params.withTopBarShadow);
_showAnimation->setWithFade(params.withFade);
_showAnimation->setTopSkip(params.topSkip);
_showAnimation->start();
show();
}
std::shared_ptr<SectionMemento> SectionWidget::createMemento() {
return nullptr;
}
void SectionWidget::showFast() {
show();
showFinished();
}
QPixmap SectionWidget::grabForShowAnimation(
const SectionSlideParams &params) {
return Ui::GrabWidget(this);
}
void SectionWidget::PaintBackground(
not_null<Window::SessionController*> controller,
not_null<Ui::ChatTheme*> theme,
not_null<QWidget*> widget,
QRect clip) {
Painter p(widget);
const auto &background = theme->background();
if (background.colorForFill) {
p.fillRect(clip, *background.colorForFill);
return;
}
const auto &gradient = background.gradientForFill;
const auto fill = QSize(widget->width(), controller->content()->height());
auto fromy = controller->content()->backgroundFromY();
auto state = theme->backgroundState(fill);
const auto paintCache = [&](const Ui::CachedBackground &cache) {
const auto to = QRect(
QPoint(cache.x, fromy + cache.y),
cache.pixmap.size() / cIntRetinaFactor());
if (cache.waitingForNegativePattern) {
// While we wait for pattern being loaded we paint just gradient.
// But in case of negative patter opacity we just fill-black.
p.fillRect(to, Qt::black);
} else if (cache.area == fill) {
p.drawPixmap(to, cache.pixmap);
} else {
const auto sx = fill.width() / float64(cache.area.width());
const auto sy = fill.height() / float64(cache.area.height());
const auto round = [](float64 value) -> int {
return (value >= 0.)
? int(std::ceil(value))
: int(std::floor(value));
};
const auto sto = QPoint(round(to.x() * sx), round(to.y() * sy));
p.drawPixmap(
sto.x(),
sto.y(),
round((to.x() + to.width()) * sx) - sto.x(),
round((to.y() + to.height()) * sy) - sto.y(),
cache.pixmap);
}
};
const auto hasNow = !state.now.pixmap.isNull();
const auto goodNow = hasNow && (state.now.area == fill);
const auto useCache = goodNow || !gradient.isNull();
if (useCache) {
if (state.shown < 1. && !gradient.isNull()) {
paintCache(state.was);
p.setOpacity(state.shown);
}
paintCache(state.now);
return;
}
const auto &prepared = background.prepared;
if (prepared.isNull()) {
return;
} else if (background.isPattern) {
const auto w = prepared.width() * fill.height() / prepared.height();
const auto cx = qCeil(fill.width() / float64(w));
const auto cols = (cx / 2) * 2 + 1;
const auto xshift = (fill.width() - w * cols) / 2;
for (auto i = 0; i != cols; ++i) {
p.drawImage(
QRect(xshift + i * w, 0, w, fill.height()),
prepared,
QRect(QPoint(), prepared.size()));
}
} else if (background.tile) {
const auto &tiled = background.preparedForTiled;
const auto left = clip.left();
const auto top = clip.top();
const auto right = clip.left() + clip.width();
const auto bottom = clip.top() + clip.height();
const auto w = tiled.width() / cRetinaFactor();
const auto h = tiled.height() / cRetinaFactor();
const auto sx = qFloor(left / w);
const auto sy = qFloor((top - fromy) / h);
const auto cx = qCeil(right / w);
const auto cy = qCeil((bottom - fromy) / h);
for (auto i = sx; i < cx; ++i) {
for (auto j = sy; j < cy; ++j) {
p.drawImage(QPointF(i * w, fromy + j * h), tiled);
}
}
} else {
const auto hq = PainterHighQualityEnabler(p);
const auto rects = Ui::ComputeChatBackgroundRects(
fill,
prepared.size());
auto to = rects.to;
to.moveTop(to.top() + fromy);
p.drawImage(to, prepared, rects.from);
}
}
void SectionWidget::paintEvent(QPaintEvent *e) {
if (_showAnimation) {
Painter p(this);
_showAnimation->paintContents(p);
}
}
bool SectionWidget::animatingShow() const {
return (_showAnimation != nullptr);
}
void SectionWidget::showFinished() {
_showAnimation.reset();
if (isHidden()) return;
showChildren();
showFinishedHook();
setInnerFocus();
}
rpl::producer<int> SectionWidget::desiredHeight() const {
return rpl::single(height());
}
SectionWidget::~SectionWidget() = default;
auto ChatThemeValueFromPeer(
not_null<SessionController*> controller,
not_null<PeerData*> peer)
-> rpl::producer<std::shared_ptr<Ui::ChatTheme>> {
auto cloud = MaybeCloudThemeValueFromPeer(
peer
) | rpl::map([=](ResolvedTheme resolved)
-> rpl::producer<std::shared_ptr<Ui::ChatTheme>> {
return resolved.theme
? controller->cachedChatThemeValue(
*resolved.theme,
(resolved.dark
? Data::CloudThemeType::Dark
: Data::CloudThemeType::Light))
: rpl::single(controller->defaultChatTheme());
}) | rpl::flatten_latest(
) | rpl::distinct_until_changed();
return rpl::combine(
std::move(cloud),
controller->peerThemeOverrideValue()
) | rpl::map([=](
std::shared_ptr<Ui::ChatTheme> &&cloud,
PeerThemeOverride &&overriden) {
return (overriden.peer == peer.get())
? std::move(overriden.theme)
: std::move(cloud);
});
}
} // namespace Window