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Slightly refactored code for statistical charts.

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This commit is contained in:
23rd
2023-09-29 17:21:53 +03:00
committed by John Preston
parent af0e11a1aa
commit cb4c629178
7 changed files with 41 additions and 66 deletions
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42
Telegram/SourceFiles/statistics/view/stack_linear_chart_view.cpp
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@@ -218,7 +218,7 @@ auto StackLinearChartView::partsPercentage(
_pieHasSinglePart = false;
for (auto k = 0; k < sums.size(); k++) {
const auto rawPercentage = sums[k] / totalSum;
const auto rawPercentage = totalSum ? (sums[k] / totalSum) : 0.;
const auto rounded = 0.01 * std::round(rawPercentage * 100.);
roundedPercentagesSum += rounded;
const auto diff = rawPercentage - rounded;
@@ -342,13 +342,16 @@ void StackLinearChartView::paintChartOrZoomAnimation(
for (auto k = 0; k < c.chartData.lines.size(); k++) {
const auto &line = c.chartData.lines[k];
const auto isLastLine = (k == lastEnabled);
const auto &transitionLine = hasTransitionAnimation
? _transition.lines[k]
: Transition::TransitionLine();
const auto lineAlpha = linesFilter->alpha(line.id);
if (isLastLine && (lineAlpha < 1.)) {
hasEmptyPoint = true;
}
if (!lineAlpha) {
continue;
}
const auto &transitionLine = hasTransitionAnimation
? _transition.lines[k]
: Transition::TransitionLine();
const auto &y = line.y;
auto &chartPath = paths[k];
@@ -357,7 +360,7 @@ void StackLinearChartView::paintChartOrZoomAnimation(
? float64(y[i] ? lineAlpha : 0.)
: float64(sum ? (y[i] * lineAlpha / sum) : 0.);
if (!yPercentage && isLastLine) {
if (isLastLine && !yPercentage) {
hasEmptyPoint = true;
}
const auto height = yPercentage * c.rect.height();
@@ -425,7 +428,9 @@ void StackLinearChartView::paintChartOrZoomAnimation(
}
if (i == localStart) {
const auto bottomLeft = QPointF(c.rect.x(), rect::bottom(c.rect));
const auto bottomLeft = QPointF(
c.rect.x(),
rect::bottom(c.rect));
const auto local = (hasTransitionAnimation && !isLastLine)
? rotate(
_transition.progress * angle
@@ -495,7 +500,9 @@ void StackLinearChartView::paintChartOrZoomAnimation(
: rect::right(c.rect));
}
} else {
chartPath.lineTo(rect::right(c.rect), rect::bottom(c.rect));
chartPath.lineTo(
rect::right(c.rect),
rect::bottom(c.rect));
}
}
@@ -510,6 +517,10 @@ void StackLinearChartView::paintChartOrZoomAnimation(
p.setClipPath(ovalPath);
}
if (hasEmptyPoint) {
p.fillRect(c.rect, st::boxDividerBg);
}
const auto opacity = c.footer ? (1. - _transition.progress) : 1.;
for (auto k = int(c.chartData.lines.size() - 1); k >= 0; k--) {
if (paths[k].isEmpty()) {
@@ -708,10 +719,13 @@ void StackLinearChartView::paintPieText(QPainter &p, const PaintContext &c) {
}
const auto rText = side * std::sqrt(1. - percentage);
const auto textAngle = (previous + kPieAngleOffset)
+ (now - previous) / 2.;
const auto textAngle = (now == previous)
? 0.
: ((previous + kPieAngleOffset) + (now - previous) / 2.);
const auto textRadians = textAngle * M_PI / 180.;
const auto scale = (minScale) + percentage * (maxScale - minScale);
const auto scale = (maxScale == minScale)
? 0.
: (minScale) + percentage * (maxScale - minScale);
const auto text = QString::number(int(percentage * 100)) + u"%"_q;
const auto textW = font->width(text);
const auto textH = font->height;
@@ -753,7 +767,7 @@ bool StackLinearChartView::PiePartController::set(int id) {
void StackLinearChartView::PiePartController::update(int id) {
if (id >= 0) {
const auto was = _startedAt[id];
const auto p = (crl::now() - was) / st::slideWrapDuration;
const auto p = (crl::now() - was) / float64(st::slideWrapDuration);
const auto progress = ((p > 0) && (p < 1)) ? (1. - p) : 0.;
_startedAt[id] = crl::now() - (st::slideWrapDuration * progress);
}
@@ -804,10 +818,8 @@ void StackLinearChartView::handleMouseMove(
}
const auto center = rect.center();
const auto theta = std::atan2(center.y() - p.y(), (center.x() - p.x()));
const auto angle = [&] {
const auto a = theta * (180. / M_PI) + 90.;
return (a > 180.) ? (a - 360.) : a;
}();
const auto rawAngle = theta * (180. / M_PI) + 90.;
const auto angle = (rawAngle > 180.) ? (rawAngle - 360.) : rawAngle;
for (auto k = 0; k < chartData.lines.size(); k++) {
const auto previous = k
? _transition.lines[k - 1].angle