Added initial appear animation of text to pie chart.
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788eb014d4
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@ -21,6 +21,7 @@ namespace {
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constexpr auto kAlphaDuration = float64(200);
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constexpr auto kAlphaDuration = float64(200);
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constexpr auto kCircleSizeRatio = 0.42;
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constexpr auto kCircleSizeRatio = 0.42;
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constexpr auto kMinTextScaleRatio = 0.3;
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constexpr auto kMinTextScaleRatio = 0.3;
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constexpr auto kPieAngleOffset = 90;
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constexpr auto kRightTop = short(0);
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constexpr auto kRightTop = short(0);
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constexpr auto kRightBottom = short(1);
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constexpr auto kRightBottom = short(1);
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@ -142,16 +143,15 @@ void StackLinearChartView::paint(
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const Limits &heightLimits,
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const Limits &heightLimits,
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const QRect &rect,
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const QRect &rect,
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bool footer) {
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bool footer) {
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const auto context = PaintContext{
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chartData,
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xPercentageLimits,
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heightLimits,
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rect,
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footer
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};
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if (_transitionProgress == 1) {
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if (_transitionProgress == 1) {
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return paintZoomed(
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return paintZoomed(p, context);
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p,
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{
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chartData,
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xPercentageLimits,
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heightLimits,
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rect,
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footer
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});
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}
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}
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const auto &[localStart, localEnd] = _lastPaintedXIndices;
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const auto &[localStart, localEnd] = _lastPaintedXIndices;
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_skipPoints = std::vector<bool>(chartData.lines.size(), false);
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_skipPoints = std::vector<bool>(chartData.lines.size(), false);
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@ -398,6 +398,17 @@ void StackLinearChartView::paint(
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p.fillPath(paths[k], line.color);
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p.fillPath(paths[k], line.color);
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}
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}
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p.setOpacity(1.);
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p.setOpacity(1.);
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{
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constexpr auto kAlphaTextPart = 0.6;
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const auto progress = std::clamp(
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(_transitionProgress - kAlphaTextPart) / (1. - kAlphaTextPart),
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0.,
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1.);
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if (progress > 0) {
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auto o = ScopedPainterOpacity(p, progress);
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paintPieText(p, context);
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}
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}
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// Fix ugly outline.
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// Fix ugly outline.
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if (!footer || !_transitionProgress) {
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if (!footer || !_transitionProgress) {
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@ -411,7 +422,6 @@ void StackLinearChartView::paintZoomed(QPainter &p, const PaintContext &c) {
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if (c.footer) {
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if (c.footer) {
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return;
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return;
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}
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}
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const auto &chartData = c.chartData;
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const auto center = QPointF(c.rect.center());
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const auto center = QPointF(c.rect.center());
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const auto side = (c.rect.width() / 2.) * kCircleSizeRatio;
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const auto side = (c.rect.width() / 2.) * kCircleSizeRatio;
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const auto rectF = QRectF(
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const auto rectF = QRectF(
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@ -419,24 +429,36 @@ void StackLinearChartView::paintZoomed(QPainter &p, const PaintContext &c) {
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center + QPointF(side, side));
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center + QPointF(side, side));
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auto hq = PainterHighQualityEnabler(p);
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auto hq = PainterHighQualityEnabler(p);
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constexpr auto kOffset = 90;
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for (auto k = 0; k < c.chartData.lines.size(); k++) {
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for (auto k = 0; k < chartData.lines.size(); k++) {
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const auto previous = k
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const auto previous = k
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? _cachedTransition.lines[k - 1].angle
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? _cachedTransition.lines[k - 1].angle
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: -180;
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: -180;
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const auto now = _cachedTransition.lines[k].angle;
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const auto now = _cachedTransition.lines[k].angle;
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p.setBrush(chartData.lines[k].color);
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p.setBrush(c.chartData.lines[k].color);
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p.setPen(Qt::NoPen);
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p.setPen(Qt::NoPen);
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p.drawPie(rectF, -(previous + kOffset) * 16, -(now - previous) * 16);
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p.drawPie(
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rectF,
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-(previous + kPieAngleOffset) * 16,
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-(now - previous) * 16);
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}
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}
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paintPieText(p, c);
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}
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void StackLinearChartView::paintPieText(QPainter &p, const PaintContext &c) {
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const auto center = QPointF(c.rect.center());
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const auto side = (c.rect.width() / 2.) * kCircleSizeRatio;
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const auto rectF = QRectF(
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center - QPointF(side, side),
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center + QPointF(side, side));
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const auto &font = st::statisticsPieChartFont;
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const auto &font = st::statisticsPieChartFont;
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const auto maxScale = side / (font->height * 2);
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const auto maxScale = side / (font->height * 2);
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const auto minScale = maxScale * kMinTextScaleRatio;
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const auto minScale = maxScale * kMinTextScaleRatio;
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p.setBrush(Qt::NoBrush);
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p.setBrush(Qt::NoBrush);
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p.setPen(st::premiumButtonFg);
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p.setPen(st::premiumButtonFg);
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p.setFont(font);
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p.setFont(font);
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for (auto k = 0; k < chartData.lines.size(); k++) {
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const auto opacity = p.opacity();
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for (auto k = 0; k < c.chartData.lines.size(); k++) {
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const auto previous = k
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const auto previous = k
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? _cachedTransition.lines[k - 1].angle
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? _cachedTransition.lines[k - 1].angle
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: -180;
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: -180;
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@ -444,9 +466,9 @@ void StackLinearChartView::paintZoomed(QPainter &p, const PaintContext &c) {
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const auto percentage = (now - previous) / 360.;
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const auto percentage = (now - previous) / 360.;
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const auto rText = side * std::sqrt(1. - percentage);
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const auto rText = side * std::sqrt(1. - percentage);
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const auto textAngle = (previous + kOffset) + (now - previous) / 2.;
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const auto textAngle = (previous + kPieAngleOffset)
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+ (now - previous) / 2.;
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const auto textRadians = textAngle * M_PI / 180.;
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const auto textRadians = textAngle * M_PI / 180.;
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const auto scale = (minScale) + percentage * (maxScale - minScale);
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const auto scale = (minScale) + percentage * (maxScale - minScale);
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const auto text = QString::number(std::round(percentage * 100))
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const auto text = QString::number(std::round(percentage * 100))
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+ u"%"_q;
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+ u"%"_q;
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@ -460,12 +482,12 @@ void StackLinearChartView::paintZoomed(QPainter &p, const PaintContext &c) {
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const auto textRect = QRectF(
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const auto textRect = QRectF(
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textRectCenter - QPointF(textXShift, textYShift),
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textRectCenter - QPointF(textXShift, textYShift),
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textRectCenter + QPointF(textXShift, textYShift));
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textRectCenter + QPointF(textXShift, textYShift));
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p.setOpacity(alpha(chartData.lines[k].id));
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p.setTransform(
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p.setTransform(
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QTransform()
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QTransform()
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.translate(textRectCenter.x(), textRectCenter.y())
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.translate(textRectCenter.x(), textRectCenter.y())
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.scale(scale, scale)
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.scale(scale, scale)
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.translate(-textRectCenter.x(), -textRectCenter.y()));
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.translate(-textRectCenter.x(), -textRectCenter.y()));
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p.setOpacity(opacity * alpha(c.chartData.lines[k].id));
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p.drawText(textRect, text, style::al_center);
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p.drawText(textRect, text, style::al_center);
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}
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}
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p.resetTransform();
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p.resetTransform();
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@ -79,6 +79,7 @@ private:
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bool footer);
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bool footer);
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void paintZoomed(QPainter &p, const PaintContext &context);
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void paintZoomed(QPainter &p, const PaintContext &context);
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void paintPieText(QPainter &p, const PaintContext &context);
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struct SelectedPoints final {
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struct SelectedPoints final {
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int lastXIndex = -1;
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int lastXIndex = -1;
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