tdesktop/Telegram/SourceFiles/statistics/point_details_widget.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 "statistics/point_details_widget.h"
#include "ui/cached_round_corners.h"
#include "ui/effects/ripple_animation.h"
#include "ui/painter.h"
#include "ui/rect.h"
#include "ui/widgets/shadow.h"
#include "styles/style_layers.h"
#include "styles/style_statistics.h"
namespace Statistic {
namespace {
[[nodiscard]] QString FormatTimestamp(
float64 timestamp,
const QString &longFormat,
const QString &shortFormat) {
const auto dateTime = QDateTime::fromSecsSinceEpoch(timestamp / 1000);
if (dateTime.toUTC().time().hour() || dateTime.toUTC().time().minute()) {
return QLocale().toString(dateTime, longFormat);
} else {
return QLocale().toString(dateTime.date(), shortFormat);
}
}
} // namespace
void PaintDetails(
QPainter &p,
const Data::StatisticalChart::Line &line,
int absoluteValue,
const QRect &rect) {
auto name = Ui::Text::String(
st::statisticsDetailsPopupStyle,
line.name);
auto value = Ui::Text::String(
st::statisticsDetailsPopupStyle,
QString("%L1").arg(absoluteValue));
const auto nameWidth = name.maxWidth();
const auto valueWidth = value.maxWidth();
const auto width = valueWidth
+ rect::m::sum::h(st::statisticsDetailsPopupMargins)
+ rect::m::sum::h(st::statisticsDetailsPopupPadding)
+ st::statisticsDetailsPopupPadding.left() // Between strings.
+ nameWidth;
const auto height = st::statisticsDetailsPopupStyle.font->height
+ rect::m::sum::v(st::statisticsDetailsPopupMargins)
+ rect::m::sum::v(st::statisticsDetailsPopupPadding);
const auto fullRect = QRect(
rect.x() + rect.width() - width,
rect.y(),
width,
height);
const auto innerRect = fullRect - st::statisticsDetailsPopupPadding;
const auto textRect = innerRect - st::statisticsDetailsPopupMargins;
Ui::Shadow::paint(p, innerRect, rect.width(), st::boxRoundShadow);
Ui::FillRoundRect(p, innerRect, st::boxBg, Ui::BoxCorners);
const auto lineY = textRect.y();
const auto valueContext = Ui::Text::PaintContext{
.position = QPoint(rect::right(textRect) - valueWidth, lineY),
};
const auto nameContext = Ui::Text::PaintContext{
.position = QPoint(textRect.x(), lineY),
.outerWidth = textRect.width() - valueWidth,
.availableWidth = textRect.width(),
};
p.setPen(st::boxTextFg);
name.draw(p, nameContext);
p.setPen(line.color);
value.draw(p, valueContext);
}
PointDetailsWidget::PointDetailsWidget(
not_null<Ui::RpWidget*> parent,
const Data::StatisticalChart &chartData,
float64 maxAbsoluteValue,
bool zoomEnabled)
: Ui::RippleButton(parent, st::defaultRippleAnimation)
, _zoomEnabled(zoomEnabled)
, _chartData(chartData)
, _textStyle(st::statisticsDetailsPopupStyle)
, _headerStyle(st::statisticsDetailsPopupHeaderStyle)
, _longFormat(u"ddd, MMM d hh:mm"_q)
, _shortFormat(u"ddd, MMM d"_q) {
if (zoomEnabled) {
rpl::single(rpl::empty_value()) | rpl::then(
style::PaletteChanged()
) | rpl::start_with_next([=] {
const auto w = st::statisticsDetailsArrowShift;
const auto stroke = style::ConvertScaleExact(
st::statisticsDetailsArrowStroke);
_arrow = QImage(
QSize(w + stroke, w * 2 + stroke) * style::DevicePixelRatio(),
QImage::Format_ARGB32_Premultiplied);
_arrow.fill(Qt::transparent);
{
auto p = QPainter(&_arrow);
const auto hq = PainterHighQualityEnabler(p);
const auto s = stroke / 2.;
p.setPen(QPen(st::windowSubTextFg, stroke));
p.drawLine(QLineF(s, s, w, w + s));
p.drawLine(QLineF(s, s + w * 2, w, w + s));
}
}, lifetime());
}
const auto calculatedWidth = [&]{
const auto maxValueText = Ui::Text::String(
_textStyle,
QString("%L1").arg(maxAbsoluteValue));
const auto maxValueTextWidth = maxValueText.maxWidth();
auto maxNameTextWidth = 0;
for (const auto &dataLine : _chartData.lines) {
const auto maxNameText = Ui::Text::String(
_textStyle,
dataLine.name);
maxNameTextWidth = std::max(
maxNameText.maxWidth(),
maxNameTextWidth);
}
{
const auto maxHeaderText = Ui::Text::String(
_headerStyle,
FormatTimestamp(
_chartData.x.front(),
_longFormat,
_shortFormat));
maxNameTextWidth = std::max(
maxHeaderText.maxWidth()
+ st::statisticsDetailsPopupPadding.left(),
maxNameTextWidth);
}
return maxValueTextWidth
+ rect::m::sum::h(st::statisticsDetailsPopupMargins)
+ rect::m::sum::h(st::statisticsDetailsPopupPadding)
+ st::statisticsDetailsPopupPadding.left() // Between strings.
+ maxNameTextWidth;
}();
sizeValue(
) | rpl::start_with_next([=](const QSize &s) {
const auto fullRect = s.isNull()
? Rect(Size(calculatedWidth))
: Rect(s);
_innerRect = fullRect - st::statisticsDetailsPopupPadding;
_textRect = _innerRect - st::statisticsDetailsPopupMargins;
}, lifetime());
resize(calculatedWidth, height());
resizeHeight();
}
void PointDetailsWidget::setLineAlpha(int lineId, float64 alpha) {
for (auto &line : _lines) {
if (line.id == lineId) {
line.alpha = alpha;
}
}
update();
resizeHeight();
}
void PointDetailsWidget::resizeHeight() {
resize(
width(),
lineYAt(_chartData.lines.size())
+ st::statisticsDetailsPopupMargins.bottom());
}
int PointDetailsWidget::xIndex() const {
return _xIndex;
}
void PointDetailsWidget::setXIndex(int xIndex) {
_xIndex = xIndex;
if (xIndex < 0) {
return;
}
_header.setText(
_headerStyle,
FormatTimestamp(_chartData.x[xIndex], _longFormat, _shortFormat));
_lines.clear();
_lines.reserve(_chartData.lines.size());
auto hasPositiveValues = false;
for (const auto &dataLine : _chartData.lines) {
auto textLine = Line();
textLine.id = dataLine.id;
textLine.name.setText(_textStyle, dataLine.name);
textLine.value.setText(
_textStyle,
QString("%L1").arg(dataLine.y[xIndex]));
hasPositiveValues |= (dataLine.y[xIndex] > 0);
textLine.valueColor = QColor(dataLine.color);
_lines.push_back(std::move(textLine));
}
const auto clickable = _zoomEnabled && hasPositiveValues;
setAttribute(
Qt::WA_TransparentForMouseEvents,
!clickable);
}
void PointDetailsWidget::setAlpha(float64 alpha) {
_alpha = alpha;
update();
}
float64 PointDetailsWidget::alpha() const {
return _alpha;
}
int PointDetailsWidget::lineYAt(int index) const {
auto linesHeight = 0.;
for (auto i = 0; i < index; i++) {
const auto alpha = (i >= _lines.size()) ? 1. : _lines[i].alpha;
linesHeight += alpha
* (_textStyle.font->height
+ st::statisticsDetailsPopupMidLineSpace);
}
return _textRect.y()
+ _headerStyle.font->height
+ st::statisticsDetailsPopupMargins.bottom() / 2
+ std::ceil(linesHeight);
}
void PointDetailsWidget::paintEvent(QPaintEvent *e) {
auto p = QPainter(this);
p.setOpacity(_alpha);
const auto fullRect = rect();
Ui::Shadow::paint(p, _innerRect, width(), st::boxRoundShadow);
Ui::FillRoundRect(p, _innerRect, st::boxBg, Ui::BoxCorners);
Ui::RippleButton::paintRipple(p, _innerRect.topLeft());
p.setPen(st::boxTextFg);
const auto headerContext = Ui::Text::PaintContext{
.position = _textRect.topLeft(),
.availableWidth = _textRect.width(),
};
_header.draw(p, headerContext);
for (auto i = 0; i < _lines.size(); i++) {
const auto &line = _lines[i];
const auto lineY = lineYAt(i);
const auto valueWidth = line.value.maxWidth();
const auto valueContext = Ui::Text::PaintContext{
.position = QPoint(rect::right(_textRect) - valueWidth, lineY),
.outerWidth = _textRect.width(),
.availableWidth = valueWidth,
};
const auto nameContext = Ui::Text::PaintContext{
.position = QPoint(_textRect.x(), lineY),
.outerWidth = _textRect.width(),
.availableWidth = _textRect.width() - valueWidth,
};
p.setOpacity(line.alpha * line.alpha * _alpha);
p.setPen(st::boxTextFg);
line.name.draw(p, nameContext);
p.setPen(line.valueColor);
line.value.draw(p, valueContext);
}
if (_zoomEnabled) {
const auto s = _arrow.size() / style::DevicePixelRatio();
const auto x = rect::right(_textRect) - s.width();
const auto y = _textRect.y()
+ (_headerStyle.font->height - s.height()) / 2.;
p.drawImage(x, y, _arrow);
}
}
QPoint PointDetailsWidget::prepareRippleStartPosition() const {
return mapFromGlobal(QCursor::pos()) - _innerRect.topLeft();
}
QImage PointDetailsWidget::prepareRippleMask() const {
return Ui::RippleAnimation::RoundRectMask(
_innerRect.size(),
st::boxRadius);
}
} // namespace Statistic