tdesktop/Telegram/SourceFiles/ui/boxes/auto_delete_settings.cpp

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/*
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 "ui/boxes/auto_delete_settings.h"
#include "ui/widgets/checkbox.h"
#include "lang/lang_keys.h"
#include "styles/style_chat.h"
#include "styles/style_layers.h"
namespace Ui {
namespace {
object_ptr<Ui::RpWidget> CreateSliderForTTL(
not_null<QWidget*> parent,
std::vector<QString> labels,
int dashedAfterIndex,
int selected,
Fn<void(int)> callback) {
Expects(labels.size() > 1);
Expects(selected >= 0 && selected < labels.size());
Expects(dashedAfterIndex >= 0 && dashedAfterIndex < labels.size());
struct State {
std::vector<int> points;
std::vector<QString> labels;
int selected = 0;
};
static const auto st = &st::defaultSliderForTTL;
const auto height = st->font->height + st->skip + st->chosenSize;
const auto count = int(labels.size());
auto result = object_ptr<Ui::FixedHeightWidget>(parent.get(), height);
const auto raw = result.data();
const auto slider = Ui::CreateChild<Ui::FixedHeightWidget>(
raw,
st->chosenSize);
slider->setCursor(style::cur_pointer);
slider->move(0, height - slider->height());
auto &lifetime = raw->lifetime();
const auto state = lifetime.make_state<State>(State{
.labels = std::move(labels),
.selected = selected
});
state->points.resize(count, 0);
raw->widthValue(
) | rpl::start_with_next([=](int width) {
for (auto i = 0; i != count; ++i) {
state->points[i] = (width * i) / (count - 1);
}
slider->resize(width, slider->height());
}, lifetime);
raw->paintRequest(
) | rpl::start_with_next([=] {
auto p = QPainter(raw);
p.setFont(st->font);
for (auto i = 0; i != count; ++i) {
// Label
p.setPen(st->textFg);
const auto &text = state->labels[i];
const auto textWidth = st->font->width(text);
const auto shift = (i == count - 1)
? textWidth
: (i > 0)
? (textWidth / 2)
: 0;
const auto x = state->points[i] - shift;
const auto y = st->font->ascent;
p.drawText(x, y, text);
}
}, lifetime);
slider->paintRequest(
) | rpl::start_with_next([=] {
auto p = QPainter(slider);
auto hq = PainterHighQualityEnabler(p);
p.setFont(st->font);
for (auto i = 0; i != count; ++i) {
const auto middle = (st->chosenSize / 2.);
// Point
const auto size = (i == state->selected)
? st->chosenSize
: st->pointSize;
const auto pointfg = (i <= state->selected)
? st->activeFg
: st->inactiveFg;
const auto shift = (i == count - 1)
? float64(size)
: (i > 0)
? (size / 2.)
: 0.;
const auto pointx = state->points[i] - shift;
const auto pointy = middle - (size / 2.);
p.setPen(Qt::NoPen);
p.setBrush(pointfg);
p.drawEllipse(QRectF{ pointx, pointy, size * 1., size * 1. });
// Line
if (i + 1 == count) {
break;
}
const auto nextSize = (i + 1 == state->selected)
? st->chosenSize
: st->pointSize;
const auto nextShift = (i + 1 == count - 1)
? float64(nextSize)
: (nextSize / 2.);
const auto &linefg = (i + 1 <= state->selected)
? st->activeFg
: st->inactiveFg;
const auto from = pointx + size + st->stroke * 1.5;
const auto till = state->points[i + 1] - nextShift - st->stroke * 1.5;
auto pen = linefg->p;
pen.setWidthF(st->stroke);
if (i >= dashedAfterIndex) {
// Try to fill the line with exact number of dash segments.
// UPD Doesn't work so well because it changes when clicking.
//const auto length = till - from;
//const auto offSegmentsCount = int(std::round(
// (length - st->dashOn) / (st->dashOn + st->dashOff)));
//const auto onSegmentsCount = offSegmentsCount + 1;
//const auto idealLength = offSegmentsCount * st->dashOff
// + onSegmentsCount * st->dashOn;
//const auto multiplier = length / float64(idealLength);
const auto multiplier = 1.;
auto dashPattern = QVector<qreal>{
st->dashOn * multiplier / st->stroke,
st->dashOff * multiplier / st->stroke
};
pen.setDashPattern(dashPattern);
}
pen.setCapStyle(Qt::RoundCap);
p.setPen(pen);
p.setBrush(Qt::NoBrush);
p.drawLine(QPointF(from, middle), QPointF(till, middle));
}
}, lifetime);
slider->events(
) | rpl::filter([=](not_null<QEvent*> e) {
return (e->type() == QEvent::MouseButtonPress)
&& (static_cast<QMouseEvent*>(e.get())->button()
== Qt::LeftButton)
&& (state->points[1] > 0);
}) | rpl::map([=](not_null<QEvent*> e) {
return rpl::single(
static_cast<QMouseEvent*>(e.get())->pos()
) | rpl::then(slider->events(
) | rpl::take_while([=](not_null<QEvent*> e) {
return (e->type() != QEvent::MouseButtonRelease)
|| (static_cast<QMouseEvent*>(e.get())->button()
!= Qt::LeftButton);
}) | rpl::filter([=](not_null<QEvent*> e) {
return (e->type() == QEvent::MouseMove);
}) | rpl::map([=](not_null<QEvent*> e) {
return static_cast<QMouseEvent*>(e.get())->pos();
}));
}) | rpl::flatten_latest(
) | rpl::start_with_next([=](QPoint position) {
state->selected = std::clamp(
(position.x() + (state->points[1] / 2)) / state->points[1],
0,
count - 1);
slider->update();
callback(state->selected);
}, lifetime);
return result;
}
} // namespace
void AutoDeleteSettingsBox(
not_null<Ui::GenericBox*> box,
TimeId ttlPeriod,
rpl::producer<QString> about,
Fn<void(TimeId)> callback) {
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box->setTitle(tr::lng_manage_messages_ttl_title());
struct State {
TimeId period = 0;
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};
const auto state = box->lifetime().make_state<State>(State{
.period = ttlPeriod,
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});
const auto options = std::vector<QString>{
tr::lng_manage_messages_ttl_never(tr::now),
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//u"5 seconds"_q, AssertIsDebug()
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tr::lng_manage_messages_ttl_after1(tr::now),
tr::lng_manage_messages_ttl_after2(tr::now),
};
const auto periodToIndex = [&](TimeId period) {
return !period
? 0
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//: (period == 5) AssertIsDebug()
//? 1 AssertIsDebug()
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: (period < 3 * 86400)
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? 1
: 2;
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};
const auto indexToPeriod = [&](int index) {
return !index
? 0
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//: (index == 1) AssertIsDebug()
//? 5 AssertIsDebug()
: (index == 1)
? 86400
: 7 * 86400;
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};
const auto sliderCallback = [=](int index) {
state->period = indexToPeriod(index);
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};
const auto slider = box->addRow(
CreateSliderForTTL(
box,
options | ranges::to_vector,
options.size() - 1,
periodToIndex(ttlPeriod),
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sliderCallback),
{
st::boxRowPadding.left(),
0,
st::boxRowPadding.right(),
st::boxMediumSkip });
const auto description = box->addRow(
object_ptr<Ui::DividerLabel>(
box,
object_ptr<Ui::FlatLabel>(
box,
std::move(about),
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st::boxDividerLabel),
st::ttlDividerLabelPadding),
style::margins());
box->addButton(tr::lng_settings_save(), [=] {
const auto period = state->period;
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box->closeBox();
callback(period);
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});
box->addButton(tr::lng_cancel(), [=] { box->closeBox(); });
}
} // namespace Ui