988 lines
29 KiB
C++
988 lines
29 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "statistics/view/stack_linear_chart_view.h"
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#include "data/data_statistics.h"
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#include "statistics/chart_lines_filter_controller.h"
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#include "statistics/point_details_widget.h"
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#include "statistics/view/stack_chart_common.h"
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#include "ui/effects/animation_value_f.h"
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#include "ui/painter.h"
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#include "ui/rect.h"
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#include "styles/style_statistics.h"
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#include <QtCore/QtMath>
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namespace Statistic {
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namespace {
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constexpr auto kCircleSizeRatio = 0.42;
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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 kRightBottom = short(1);
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constexpr auto kLeftBottom = short(2);
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constexpr auto kLeftTop = short(3);
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[[nodiscard]] short QuarterForPoint(const QRect &r, const QPointF &p) {
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if (p.x() >= r.center().x() && p.y() <= r.center().y()) {
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return kRightTop;
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} else if (p.x() >= r.center().x() && p.y() >= r.center().y()) {
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return kRightBottom;
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} else if (p.x() < r.center().x() && p.y() >= r.center().y()) {
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return kLeftBottom;
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} else {
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return kLeftTop;
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}
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}
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inline float64 InterpolationRatio(float64 from, float64 to, float64 result) {
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return (result - from) / (to - from);
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};
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[[nodiscard]] Limits FindAdditionalZoomedOutXIndices(const PaintContext &c) {
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constexpr auto kOffset = int(1);
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auto &xPercentage = c.chartData.xPercentage;
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auto leftResult = 0.;
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{
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auto i = std::max(int(c.xIndices.min) - kOffset, 0);
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if (xPercentage[i] > c.xPercentageLimits.min) {
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while (true) {
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i--;
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if (i < 0) {
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leftResult = 0;
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break;
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} else if (!(xPercentage[i] > c.xPercentageLimits.min)) {
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leftResult = i;
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break;
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}
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}
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} else {
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leftResult = i;
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}
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}
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{
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const auto lastIndex = float64(xPercentage.size() - 1);
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auto i = std::min(lastIndex, float64(c.xIndices.max) + kOffset);
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if (xPercentage[i] < c.xPercentageLimits.max) {
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while (true) {
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i++;
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if (i > lastIndex) {
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return { leftResult, lastIndex };
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} else if (!(xPercentage[i] < c.xPercentageLimits.max)) {
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return { leftResult, i };
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}
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}
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} else {
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return { leftResult, i };
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}
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}
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}
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} // namespace
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StackLinearChartView::StackLinearChartView() {
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_piePartAnimation.init([=] { AbstractChartView::update(); });
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}
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StackLinearChartView::~StackLinearChartView() = default;
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void StackLinearChartView::paint(QPainter &p, const PaintContext &c) {
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if (!_transition.progress && !c.footer) {
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prepareZoom(c, TransitionStep::ZoomedOut);
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}
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if (_transition.pendingPrepareToZoomIn) {
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_transition.pendingPrepareToZoomIn = false;
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prepareZoom(c, TransitionStep::PrepareToZoomIn);
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}
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StackLinearChartView::paintChartOrZoomAnimation(p, c);
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}
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void StackLinearChartView::prepareZoom(
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const PaintContext &c,
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TransitionStep step) {
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if (step == TransitionStep::ZoomedOut) {
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_transition.zoomedOutXIndicesAdditional
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= FindAdditionalZoomedOutXIndices(c);
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_transition.zoomedOutXIndices = c.xIndices;
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_transition.zoomedOutXPercentage = c.xPercentageLimits;
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} else if (step == TransitionStep::PrepareToZoomIn) {
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const auto &[zoomedStart, zoomedEnd] =
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_transition.zoomedOutXIndices;
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_transition.lines = std::vector<Transition::TransitionLine>(
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c.chartData.lines.size(),
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Transition::TransitionLine());
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const auto xPercentageLimits = _transition.zoomedOutXPercentage;
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const auto &linesFilter = linesFilterController();
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for (auto j = 0; j < 2; j++) {
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const auto i = int((j == 1) ? zoomedEnd : zoomedStart);
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auto stackOffset = 0;
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auto sum = 0.;
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auto drawingLinesCount = 0;
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for (const auto &line : c.chartData.lines) {
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if (!linesFilter->isEnabled(line.id)) {
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continue;
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}
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if (line.y[i] > 0) {
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sum += line.y[i] * linesFilter->alpha(line.id);
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drawingLinesCount++;
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}
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}
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for (auto k = 0; k < c.chartData.lines.size(); k++) {
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auto &linePoint = (j
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? _transition.lines[k].end
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: _transition.lines[k].start);
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const auto &line = c.chartData.lines[k];
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if (!linesFilter->isEnabled(line.id)) {
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continue;
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}
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const auto yPercentage = (drawingLinesCount == 1)
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? (line.y[i] ? linesFilter->alpha(line.id) : 0)
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: (sum
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? (line.y[i] * linesFilter->alpha(line.id) / sum)
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: 0);
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const auto xPoint = c.rect.width()
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* ((c.chartData.xPercentage[i] - xPercentageLimits.min)
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/ (xPercentageLimits.max - xPercentageLimits.min));
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const auto height = yPercentage * c.rect.height();
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const auto yPoint = rect::bottom(c.rect)
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- height
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- stackOffset;
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linePoint = { xPoint, yPoint };
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stackOffset += height;
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}
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}
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savePieTextParts(c);
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applyParts(_transition.textParts);
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}
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}
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void StackLinearChartView::applyParts(const std::vector<PiePartData> &parts) {
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for (auto k = 0; k < parts.size(); k++) {
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_transition.lines[k].angle = parts[k].stackedAngle;
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}
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}
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void StackLinearChartView::saveZoomRange(const PaintContext &c) {
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_transition.zoomedInRangeXIndices = FindStackXIndicesFromRawXPercentages(
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c.chartData,
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c.xPercentageLimits,
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_transition.zoomedInLimitXIndices);
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_transition.zoomedInRange = {
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c.chartData.xPercentage[_transition.zoomedInRangeXIndices.min],
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c.chartData.xPercentage[_transition.zoomedInRangeXIndices.max],
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};
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}
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void StackLinearChartView::savePieTextParts(const PaintContext &c) {
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_transition.textParts = partsPercentage(
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c.chartData,
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_transition.zoomedInRangeXIndices);
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}
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auto StackLinearChartView::partsPercentage(
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const Data::StatisticalChart &chartData,
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const Limits &xIndices) -> std::vector<PiePartData> {
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auto result = std::vector<PiePartData>();
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result.reserve(chartData.lines.size());
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auto sums = std::vector<float64>();
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sums.reserve(chartData.lines.size());
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auto totalSum = 0.;
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const auto &linesFilter = linesFilterController();
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for (const auto &line : chartData.lines) {
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auto sum = 0;
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for (auto i = xIndices.min; i <= xIndices.max; i++) {
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sum += line.y[i];
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}
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sum *= linesFilter->alpha(line.id);
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totalSum += sum;
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sums.push_back(sum);
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}
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auto stackedPercentage = 0.;
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auto sumPercDiffs = 0.;
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auto maxPercDiff = 0.;
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auto minPercDiff = 0.;
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auto maxPercDiffIndex = int(-1);
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auto minPercDiffIndex = int(-1);
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auto roundedPercentagesSum = 0.;
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_pieHasSinglePart = false;
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for (auto k = 0; k < sums.size(); k++) {
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const auto rawPercentage = sums[k] / totalSum;
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const auto rounded = 0.01 * std::round(rawPercentage * 100.);
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roundedPercentagesSum += rounded;
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const auto diff = rawPercentage - rounded;
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sumPercDiffs += diff;
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const auto diffAbs = std::abs(diff);
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if (maxPercDiff < diffAbs) {
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maxPercDiff = diffAbs;
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maxPercDiffIndex = k;
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}
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if (minPercDiff < diffAbs) {
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minPercDiff = diffAbs;
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minPercDiffIndex = k;
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}
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stackedPercentage += rounded;
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result.push_back({ rounded, stackedPercentage * 360. - 180. });
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_pieHasSinglePart |= (rounded == 1.);
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}
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{
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const auto index = (roundedPercentagesSum > 1.)
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? maxPercDiffIndex
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: minPercDiffIndex;
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if (index >= 0) {
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result[index].roundedPercentage += sumPercDiffs;
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const auto angleShrink = (sumPercDiffs) * 360.;
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for (auto i = index; i < result.size(); i++) {
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result[i].stackedAngle += angleShrink;
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}
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}
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}
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return result;
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}
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void StackLinearChartView::paintChartOrZoomAnimation(
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QPainter &p,
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const PaintContext &c) {
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if (_transition.progress == 1.) {
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if (c.footer) {
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paintZoomedFooter(p, c);
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} else {
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paintZoomed(p, c);
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}
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return p.setOpacity(0.);
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}
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const auto &linesFilter = linesFilterController();
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const auto hasTransitionAnimation = _transition.progress && !c.footer;
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const auto &[localStart, localEnd] = c.footer
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? Limits{ 0., float64(c.chartData.xPercentage.size() - 1) }
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: _transition.zoomedOutXIndicesAdditional;
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_skipPoints = std::vector<bool>(c.chartData.lines.size(), false);
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auto paths = std::vector<QPainterPath>(
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c.chartData.lines.size(),
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QPainterPath());
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const auto center = QPointF(c.rect.center());
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const auto rotate = [&](float64 ang, const QPointF &p) {
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return QTransform()
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.translate(center.x(), center.y())
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.rotate(ang)
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.translate(-center.x(), -center.y())
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.map(p);
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};
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const auto xPercentageLimits = !c.footer
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? _transition.zoomedOutXPercentage
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: Limits{
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c.chartData.xPercentage[localStart],
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c.chartData.xPercentage[localEnd],
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};
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auto straightLineProgress = 0.;
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auto hasEmptyPoint = false;
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auto ovalPath = QPainterPath();
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if (hasTransitionAnimation) {
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constexpr auto kStraightLinePart = 0.6;
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straightLineProgress = std::clamp(
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_transition.progress / kStraightLinePart,
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0.,
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1.);
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auto rectPath = QPainterPath();
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rectPath.addRect(c.rect);
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const auto r = anim::interpolateF(
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1.,
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kCircleSizeRatio,
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_transition.progress);
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const auto per = anim::interpolateF(0., 100., _transition.progress);
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const auto side = (c.rect.width() / 2.) * r;
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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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ovalPath.addRoundedRect(rectF, per, per, Qt::RelativeSize);
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ovalPath = ovalPath.intersected(rectPath);
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}
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for (auto i = localStart; i <= localEnd; i++) {
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auto stackOffset = 0.;
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auto sum = 0.;
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auto lastEnabled = int(0);
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auto drawingLinesCount = int(0);
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const auto xPoint = c.rect.width()
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* ((c.chartData.xPercentage[i] - xPercentageLimits.min)
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/ (xPercentageLimits.max - xPercentageLimits.min));
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for (auto k = 0; k < c.chartData.lines.size(); k++) {
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const auto &line = c.chartData.lines[k];
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if (!linesFilter->isEnabled(line.id)) {
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continue;
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}
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if (line.y[i] > 0) {
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sum += line.y[i] * linesFilter->alpha(line.id);
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drawingLinesCount++;
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}
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lastEnabled = k;
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}
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for (auto k = 0; k < c.chartData.lines.size(); k++) {
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const auto &line = c.chartData.lines[k];
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const auto isLastLine = (k == lastEnabled);
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const auto &transitionLine = _transition.lines[k];
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if (!linesFilter->isEnabled(line.id)) {
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continue;
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}
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const auto &y = line.y;
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const auto lineAlpha = linesFilter->alpha(line.id);
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auto &chartPath = paths[k];
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const auto yPercentage = (drawingLinesCount == 1)
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? float64(y[i] ? lineAlpha : 0.)
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: float64(sum ? (y[i] * lineAlpha / sum) : 0.);
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if (!yPercentage && isLastLine) {
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hasEmptyPoint = true;
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}
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const auto height = yPercentage * c.rect.height();
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const auto yPoint = rect::bottom(c.rect) - height - stackOffset;
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// startFromY[k] = yPoint;
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auto angle = 0.;
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auto resultPoint = QPointF(xPoint, yPoint);
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auto pointZero = QPointF(xPoint, c.rect.y() + c.rect.height());
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// if (i == localEnd) {
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// endXPoint = xPoint;
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// } else if (i == localStart) {
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// startXPoint = xPoint;
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// }
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if (hasTransitionAnimation && !isLastLine) {
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const auto point1 = (resultPoint.x() < center.x())
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? transitionLine.start
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: transitionLine.end;
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const auto diff = center - point1;
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const auto yTo = point1.y()
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+ diff.y() * (resultPoint.x() - point1.x()) / diff.x();
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const auto yToResult = yTo * straightLineProgress;
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const auto revProgress = (1. - straightLineProgress);
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resultPoint.setY(resultPoint.y() * revProgress + yToResult);
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pointZero.setY(pointZero.y() * revProgress + yToResult);
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{
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const auto angleK = diff.y() / float64(diff.x());
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angle = (angleK > 0)
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? (-std::atan(angleK)) * (180. / M_PI)
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: (std::atan(std::abs(angleK))) * (180. / M_PI);
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angle -= 90;
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}
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if (resultPoint.x() >= center.x()) {
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const auto resultAngle = _transition.progress * angle;
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const auto rotated = rotate(resultAngle, resultPoint);
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resultPoint = QPointF(
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std::max(rotated.x(), center.x()),
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rotated.y());
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pointZero = QPointF(
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std::max(pointZero.x(), center.x()),
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rotate(resultAngle, pointZero).y());
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} else {
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const auto &xLimits = xPercentageLimits;
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const auto isNextXPointAfterCenter = false
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|| center.x() < (c.rect.width() * ((i == localEnd)
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? 1.
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: ((c.chartData.xPercentage[i + 1] - xLimits.min)
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/ (xLimits.max - xLimits.min))));
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if (isNextXPointAfterCenter) {
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pointZero = resultPoint = QPointF()
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+ center * straightLineProgress
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+ resultPoint * revProgress;
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} else {
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const auto resultAngle = _transition.progress * angle
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+ _transition.progress * transitionLine.angle;
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resultPoint = rotate(resultAngle, resultPoint);
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pointZero = rotate(resultAngle, pointZero);
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}
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}
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}
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if (i == localStart) {
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const auto bottomLeft = QPointF(c.rect.x(), rect::bottom(c.rect));
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const auto local = (hasTransitionAnimation && !isLastLine)
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? rotate(
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_transition.progress * angle
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+ _transition.progress * transitionLine.angle,
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bottomLeft - QPointF(center.x(), 0))
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: bottomLeft;
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chartPath.setFillRule(Qt::WindingFill);
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chartPath.moveTo(local);
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_skipPoints[k] = false;
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}
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const auto yRatio = 1. - (isLastLine ? _transition.progress : 0.);
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if ((!yPercentage)
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&& (i > 0 && (y[i - 1] == 0))
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&& (i < localEnd && (y[i + 1] == 0))
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&& (!hasTransitionAnimation)) {
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if (!_skipPoints[k]) {
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chartPath.lineTo(pointZero.x(), pointZero.y() * yRatio);
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}
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_skipPoints[k] = true;
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} else {
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if (_skipPoints[k]) {
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chartPath.lineTo(pointZero.x(), pointZero.y() * yRatio);
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}
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chartPath.lineTo(resultPoint.x(), resultPoint.y() * yRatio);
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_skipPoints[k] = false;
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}
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if (i == localEnd) {
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if (hasTransitionAnimation && !isLastLine) {
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{
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const auto diff = center - transitionLine.start;
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const auto angleK = diff.y() / diff.x();
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angle = (angleK > 0)
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? ((-std::atan(angleK)) * (180. / M_PI))
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: ((std::atan(std::abs(angleK))) * (180. / M_PI));
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angle -= 90;
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}
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const auto local = rotate(
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_transition.progress * angle
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+ _transition.progress * transitionLine.angle,
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transitionLine.start);
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const auto ending = true
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&& (std::abs(resultPoint.x() - local.x()) < 0.001)
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&& ((local.y() < center.y()
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&& resultPoint.y() < center.y())
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|| (local.y() > center.y()
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&& resultPoint.y() > center.y()));
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const auto endQuarter = (!ending)
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? QuarterForPoint(c.rect, resultPoint)
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: kRightTop;
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const auto startQuarter = (!ending)
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? QuarterForPoint(c.rect, local)
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: (transitionLine.angle == -180.)
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? kRightTop
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: kLeftTop;
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for (auto q = endQuarter; q <= startQuarter; q++) {
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chartPath.lineTo(
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(q == kLeftTop || q == kLeftBottom)
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? c.rect.x()
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: rect::right(c.rect),
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(q == kLeftTop || q == kRightTop)
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? c.rect.y()
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: rect::right(c.rect));
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}
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} else {
|
|
chartPath.lineTo(rect::right(c.rect), rect::bottom(c.rect));
|
|
}
|
|
}
|
|
|
|
stackOffset += height;
|
|
}
|
|
}
|
|
|
|
auto hq = PainterHighQualityEnabler(p);
|
|
|
|
p.fillRect(c.rect + QMargins(0, 0, 0, st::lineWidth), st::boxBg);
|
|
if (!ovalPath.isEmpty()) {
|
|
p.setClipPath(ovalPath);
|
|
}
|
|
|
|
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()) {
|
|
continue;
|
|
}
|
|
const auto &line = c.chartData.lines[k];
|
|
p.setOpacity(linesFilter->alpha(line.id) * opacity);
|
|
p.setPen(Qt::NoPen);
|
|
p.fillPath(paths[k], line.color);
|
|
}
|
|
p.setOpacity(opacity);
|
|
if (!c.footer) {
|
|
constexpr auto kAlphaTextPart = 0.6;
|
|
const auto progress = std::clamp(
|
|
(_transition.progress - kAlphaTextPart) / (1. - kAlphaTextPart),
|
|
0.,
|
|
1.);
|
|
if (progress > 0) {
|
|
auto o = ScopedPainterOpacity(p, progress);
|
|
paintPieText(p, c);
|
|
}
|
|
} else if (_transition.progress) {
|
|
paintZoomedFooter(p, c);
|
|
}
|
|
|
|
// Fix ugly outline.
|
|
if (!c.footer || !_transition.progress) {
|
|
p.setBrush(Qt::transparent);
|
|
p.setPen(st::boxBg);
|
|
p.drawPath(ovalPath);
|
|
}
|
|
|
|
if (!ovalPath.isEmpty()) {
|
|
p.setClipRect(c.rect, Qt::NoClip);
|
|
}
|
|
p.setOpacity(1. - _transition.progress);
|
|
}
|
|
|
|
void StackLinearChartView::paintZoomed(QPainter &p, const PaintContext &c) {
|
|
if (c.footer) {
|
|
return;
|
|
}
|
|
|
|
saveZoomRange(c);
|
|
const auto parts = partsPercentage(
|
|
c.chartData,
|
|
_transition.zoomedInRangeXIndices);
|
|
applyParts(parts);
|
|
|
|
p.fillRect(c.rect + QMargins(0, 0, 0, st::lineWidth), st::boxBg);
|
|
const auto center = QPointF(c.rect.center());
|
|
const auto side = (c.rect.width() / 2.) * kCircleSizeRatio;
|
|
const auto rectF = QRectF(
|
|
center - QPointF(side, side),
|
|
center + QPointF(side, side));
|
|
|
|
auto hq = PainterHighQualityEnabler(p);
|
|
auto selectedLineIndex = -1;
|
|
const auto skipTranslation = skipSelectedTranslation();
|
|
for (auto k = 0; k < c.chartData.lines.size(); k++) {
|
|
const auto previous = k
|
|
? parts[k - 1].stackedAngle
|
|
: -180;
|
|
const auto now = parts[k].stackedAngle;
|
|
|
|
const auto &line = c.chartData.lines[k];
|
|
p.setBrush(line.color);
|
|
p.setPen(Qt::NoPen);
|
|
const auto textAngle = (previous + kPieAngleOffset)
|
|
+ (now - previous) / 2.;
|
|
const auto partOffset = skipTranslation
|
|
? QPointF()
|
|
: _piePartController.offset(line.id, textAngle);
|
|
p.translate(partOffset);
|
|
p.drawPie(
|
|
rectF,
|
|
-(previous + kPieAngleOffset) * 16,
|
|
-(now - previous) * 16);
|
|
p.translate(-partOffset);
|
|
if (_piePartController.selected() == line.id) {
|
|
selectedLineIndex = k;
|
|
}
|
|
}
|
|
if (_piePartController.isFinished()) {
|
|
_piePartAnimation.stop();
|
|
}
|
|
paintPieText(p, c);
|
|
|
|
if (selectedLineIndex >= 0) {
|
|
const auto &[zoomedStart, zoomedEnd] =
|
|
_transition.zoomedInRangeXIndices;
|
|
const auto &line = c.chartData.lines[selectedLineIndex];
|
|
auto sum = 0;
|
|
for (auto i = zoomedStart; i <= zoomedEnd; i++) {
|
|
sum += line.y[i];
|
|
}
|
|
sum *= linesFilterController()->alpha(line.id);
|
|
if (sum > 0) {
|
|
PaintDetails(p, line, sum, c.rect);
|
|
}
|
|
}
|
|
}
|
|
|
|
void StackLinearChartView::paintZoomedFooter(
|
|
QPainter &p,
|
|
const PaintContext &c) {
|
|
if (!c.footer) {
|
|
return;
|
|
}
|
|
auto o = ScopedPainterOpacity(p, _transition.progress);
|
|
auto hq = PainterHighQualityEnabler(p);
|
|
const auto &[zoomedStart, zoomedEnd] = _transition.zoomedInLimitXIndices;
|
|
const auto sideW = st::statisticsChartFooterSideWidth;
|
|
const auto width = c.rect.width() - sideW * 2.;
|
|
const auto leftStart = c.rect.x() + sideW;
|
|
const auto &xPercentage = c.chartData.xPercentage;
|
|
auto previousX = leftStart;
|
|
// Read FindStackXIndicesFromRawXPercentages.
|
|
const auto offset = (xPercentage[zoomedEnd] == 1.) ? 0 : 1;
|
|
for (auto i = zoomedStart; i <= zoomedEnd; i++) {
|
|
auto sum = 0.;
|
|
auto lastEnabledId = int(0);
|
|
for (const auto &line : c.chartData.lines) {
|
|
if (!linesFilterController()->isEnabled(line.id)) {
|
|
continue;
|
|
}
|
|
sum += line.y[i] * linesFilterController()->alpha(line.id);
|
|
lastEnabledId = line.id;
|
|
}
|
|
|
|
const auto columnMargins = QMarginsF(
|
|
(i == zoomedStart) ? sideW : 0,
|
|
0,
|
|
(i == zoomedEnd - offset) ? sideW : 0,
|
|
0);
|
|
|
|
const auto next = std::clamp(i + offset, zoomedStart, zoomedEnd);
|
|
const auto xPointPercentage =
|
|
(xPercentage[next] - xPercentage[zoomedStart])
|
|
/ (xPercentage[zoomedEnd] - xPercentage[zoomedStart]);
|
|
const auto xPoint = leftStart + width * xPointPercentage;
|
|
|
|
auto stack = 0.;
|
|
for (auto k = int(c.chartData.lines.size() - 1); k >= 0; k--) {
|
|
const auto &line = c.chartData.lines[k];
|
|
if (!linesFilterController()->isEnabled(line.id)) {
|
|
continue;
|
|
}
|
|
const auto visibleHeight = c.rect.height() * (line.y[i] / sum);
|
|
const auto height = (line.id == lastEnabledId)
|
|
? c.rect.height()
|
|
: visibleHeight;
|
|
|
|
const auto column = columnMargins + QRectF(
|
|
previousX,
|
|
stack,
|
|
xPoint - previousX,
|
|
height);
|
|
|
|
p.setPen(Qt::NoPen);
|
|
p.fillRect(column, line.color);
|
|
stack += visibleHeight;
|
|
}
|
|
previousX = xPoint;
|
|
}
|
|
}
|
|
|
|
void StackLinearChartView::paintPieText(QPainter &p, const PaintContext &c) {
|
|
constexpr auto kMinPercentage = 0.03;
|
|
if (_transition.progress == 1.) {
|
|
savePieTextParts(c);
|
|
}
|
|
const auto &parts = _transition.textParts;
|
|
|
|
const auto center = QPointF(c.rect.center());
|
|
const auto side = (c.rect.width() / 2.) * kCircleSizeRatio;
|
|
const auto rectF = QRectF(
|
|
center - QPointF(side, side),
|
|
center + QPointF(side, side));
|
|
const auto &font = st::statisticsPieChartFont;
|
|
const auto maxScale = side / (font->height * 2);
|
|
const auto minScale = maxScale * kMinTextScaleRatio;
|
|
p.setBrush(Qt::NoBrush);
|
|
p.setPen(st::premiumButtonFg);
|
|
p.setFont(font);
|
|
const auto opacity = p.opacity();
|
|
const auto skipTranslation = skipSelectedTranslation();
|
|
for (auto k = 0; k < c.chartData.lines.size(); k++) {
|
|
const auto previous = k
|
|
? parts[k - 1].stackedAngle
|
|
: -180;
|
|
const auto now = parts[k].stackedAngle;
|
|
const auto percentage = parts[k].roundedPercentage;
|
|
if (percentage <= kMinPercentage) {
|
|
continue;
|
|
}
|
|
|
|
const auto rText = side * std::sqrt(1. - percentage);
|
|
const auto textAngle = (previous + kPieAngleOffset)
|
|
+ (now - previous) / 2.;
|
|
const auto textRadians = textAngle * M_PI / 180.;
|
|
const auto scale = (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;
|
|
const auto textXShift = textW / 2.;
|
|
const auto textYShift = textW / 2.;
|
|
const auto textRectCenter = rectF.center() + QPointF(
|
|
(rText - textXShift * (1. - scale)) * std::cos(textRadians),
|
|
(rText - textYShift * (1. - scale)) * std::sin(textRadians));
|
|
const auto textRect = QRectF(
|
|
textRectCenter - QPointF(textXShift, textYShift),
|
|
textRectCenter + QPointF(textXShift, textYShift));
|
|
const auto partOffset = skipTranslation
|
|
? QPointF()
|
|
: _piePartController.offset(c.chartData.lines[k].id, textAngle);
|
|
p.setTransform(
|
|
QTransform()
|
|
.translate(
|
|
textRectCenter.x() + partOffset.x(),
|
|
textRectCenter.y() + partOffset.y())
|
|
.scale(scale, scale)
|
|
.translate(-textRectCenter.x(), -textRectCenter.y()));
|
|
p.setOpacity(opacity
|
|
* linesFilterController()->alpha(c.chartData.lines[k].id));
|
|
p.drawText(textRect, text, style::al_center);
|
|
}
|
|
p.resetTransform();
|
|
}
|
|
|
|
bool StackLinearChartView::PiePartController::set(int id) {
|
|
if (_selected != id) {
|
|
update(_selected);
|
|
_selected = id;
|
|
update(_selected);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void StackLinearChartView::PiePartController::update(int id) {
|
|
if (id >= 0) {
|
|
const auto was = _startedAt[id];
|
|
const auto p = (crl::now() - was) / st::slideWrapDuration;
|
|
const auto progress = ((p > 0) && (p < 1)) ? (1. - p) : 0.;
|
|
_startedAt[id] = crl::now() - (st::slideWrapDuration * progress);
|
|
}
|
|
}
|
|
|
|
float64 StackLinearChartView::PiePartController::progress(int id) const {
|
|
const auto it = _startedAt.find(id);
|
|
if (it == end(_startedAt)) {
|
|
return 0.;
|
|
}
|
|
const auto at = it->second;
|
|
const auto show = (_selected == id);
|
|
const auto progress = std::clamp(
|
|
(crl::now() - at) / float64(st::slideWrapDuration),
|
|
0.,
|
|
1.);
|
|
return std::clamp(show ? progress : (1. - progress), 0., 1.);
|
|
}
|
|
|
|
QPointF StackLinearChartView::PiePartController::offset(
|
|
LineId id,
|
|
float64 angle) const {
|
|
const auto offset = st::statisticsPieChartPartOffset * progress(id);
|
|
const auto radians = angle * M_PI / 180.;
|
|
return { std::cos(radians) * offset, std::sin(radians) * offset };
|
|
}
|
|
|
|
auto StackLinearChartView::PiePartController::selected() const -> LineId {
|
|
return _selected;
|
|
}
|
|
|
|
bool StackLinearChartView::PiePartController::isFinished() const {
|
|
for (const auto &[id, _] : _startedAt) {
|
|
const auto p = progress(id);
|
|
if (p > 0 && p < 1) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void StackLinearChartView::handleMouseMove(
|
|
const Data::StatisticalChart &chartData,
|
|
const QRect &rect,
|
|
const QPoint &p) {
|
|
if (_transition.progress < 1) {
|
|
return;
|
|
}
|
|
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;
|
|
}();
|
|
for (auto k = 0; k < chartData.lines.size(); k++) {
|
|
const auto previous = k
|
|
? _transition.lines[k - 1].angle
|
|
: -180;
|
|
const auto now = _transition.lines[k].angle;
|
|
if (angle > previous && angle <= now) {
|
|
const auto id = p.isNull()
|
|
? -1
|
|
: chartData.lines[k].id;
|
|
if (_piePartController.set(id)) {
|
|
if (!_piePartAnimation.animating()) {
|
|
_piePartAnimation.start();
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool StackLinearChartView::skipSelectedTranslation() const {
|
|
return _pieHasSinglePart;
|
|
}
|
|
|
|
void StackLinearChartView::paintSelectedXIndex(
|
|
QPainter &p,
|
|
const PaintContext &c,
|
|
int selectedXIndex,
|
|
float64 progress) {
|
|
if ((selectedXIndex < 0) || c.footer) {
|
|
return;
|
|
}
|
|
const auto &[localStart, localEnd] = _transition.zoomedOutXIndices;
|
|
const auto xPercentageLimits = _transition.zoomedOutXPercentage;
|
|
p.setBrush(st::boxBg);
|
|
const auto r = st::statisticsDetailsDotRadius;
|
|
const auto i = selectedXIndex;
|
|
const auto isSameToken = (_selectedPoints.lastXIndex == selectedXIndex)
|
|
&& (_selectedPoints.lastHeightLimits.min == c.heightLimits.min)
|
|
&& (_selectedPoints.lastHeightLimits.max == c.heightLimits.max)
|
|
&& (_selectedPoints.lastXLimits.min == xPercentageLimits.min)
|
|
&& (_selectedPoints.lastXLimits.max == xPercentageLimits.max);
|
|
{
|
|
const auto useCache = isSameToken;
|
|
if (!useCache) {
|
|
// Calculate.
|
|
const auto xPoint = c.rect.width()
|
|
* ((c.chartData.xPercentage[i] - xPercentageLimits.min)
|
|
/ (xPercentageLimits.max - xPercentageLimits.min));
|
|
_selectedPoints.xPoint = xPoint;
|
|
}
|
|
|
|
{
|
|
[[maybe_unused]] const auto o = ScopedPainterOpacity(
|
|
p,
|
|
p.opacity() * progress);
|
|
const auto lineRect = QRectF(
|
|
_selectedPoints.xPoint - (st::lineWidth / 2.),
|
|
c.rect.y(),
|
|
st::lineWidth,
|
|
c.rect.height());
|
|
p.fillRect(lineRect, st::windowSubTextFg);
|
|
}
|
|
}
|
|
_selectedPoints.lastXIndex = selectedXIndex;
|
|
_selectedPoints.lastHeightLimits = c.heightLimits;
|
|
_selectedPoints.lastXLimits = xPercentageLimits;
|
|
}
|
|
|
|
int StackLinearChartView::findXIndexByPosition(
|
|
const Data::StatisticalChart &chartData,
|
|
const Limits &xPercentageLimits,
|
|
const QRect &rect,
|
|
float64 x) {
|
|
if (_transition.progress == 1.) {
|
|
return -1;
|
|
} else if (x < rect.x()) {
|
|
return 0;
|
|
} else if (x > (rect.x() + rect.width())) {
|
|
return chartData.xPercentage.size() - 1;
|
|
}
|
|
const auto pointerRatio = std::clamp(
|
|
(x - rect.x()) / rect.width(),
|
|
0.,
|
|
1.);
|
|
const auto &[localStart, localEnd] = _transition.zoomedOutXIndices;
|
|
const auto rawXPercentage = anim::interpolateF(
|
|
_transition.zoomedOutXPercentage.min,
|
|
_transition.zoomedOutXPercentage.max,
|
|
pointerRatio);
|
|
const auto it = ranges::lower_bound(
|
|
chartData.xPercentage,
|
|
rawXPercentage);
|
|
const auto left = rawXPercentage - (*(it - 1));
|
|
const auto right = (*it) - rawXPercentage;
|
|
const auto nearestXPercentageIt = ((right) > (left)) ? (it - 1) : it;
|
|
return std::clamp(
|
|
std::distance(begin(chartData.xPercentage), nearestXPercentageIt),
|
|
long(localStart),
|
|
long(localEnd));
|
|
}
|
|
|
|
AbstractChartView::HeightLimits StackLinearChartView::heightLimits(
|
|
Data::StatisticalChart &chartData,
|
|
Limits xIndices) {
|
|
constexpr auto kMaxStackLinear = 100.;
|
|
return {
|
|
.full = { 0, kMaxStackLinear },
|
|
.ranged = { 0., kMaxStackLinear },
|
|
};
|
|
}
|
|
|
|
auto StackLinearChartView::maybeLocalZoom(
|
|
const LocalZoomArgs &args) -> LocalZoomResult {
|
|
// 8 days.
|
|
constexpr auto kLimitLength = int(8);
|
|
// 1 day in middle of limits.
|
|
constexpr auto kRangeLength = int(0);
|
|
constexpr auto kLeftSide = int(kLimitLength / 2 + kRangeLength);
|
|
constexpr auto kRightSide = int(kLimitLength / 2);
|
|
|
|
_transition.progress = args.progress;
|
|
if (args.type == LocalZoomArgs::Type::SkipCalculation) {
|
|
return { true, _transition.zoomedInLimit, _transition.zoomedInRange };
|
|
} else if (args.type == LocalZoomArgs::Type::CheckAvailability) {
|
|
return { .hasZoom = true };
|
|
} else if (args.type == LocalZoomArgs::Type::Prepare) {
|
|
_transition.pendingPrepareToZoomIn = true;
|
|
}
|
|
const auto xIndex = args.xIndex;
|
|
const auto &xPercentage = args.chartData.xPercentage;
|
|
const auto backIndex = (xPercentage.size() - 1);
|
|
const auto localRangeIndex = (xIndex == backIndex)
|
|
? (backIndex - kRangeLength)
|
|
: xIndex;
|
|
_transition.zoomedInRange = {
|
|
xPercentage[localRangeIndex],
|
|
xPercentage[localRangeIndex + kRangeLength],
|
|
};
|
|
_transition.zoomedInRangeXIndices = {
|
|
float64(localRangeIndex),
|
|
float64(localRangeIndex + kRangeLength),
|
|
};
|
|
_transition.zoomedInLimitXIndices = (xIndex < kLeftSide)
|
|
? Limits{ 0, kLimitLength + kRangeLength }
|
|
: (xIndex > (backIndex - kRightSide - kRangeLength))
|
|
? Limits{ float64(backIndex - kLimitLength), float64(backIndex) }
|
|
: Limits{ float64(xIndex - kLeftSide), float64(xIndex + kRightSide) };
|
|
_transition.zoomedInLimit = {
|
|
anim::interpolateF(
|
|
0.,
|
|
xPercentage[_transition.zoomedInLimitXIndices.min],
|
|
args.progress),
|
|
anim::interpolateF(
|
|
1.,
|
|
xPercentage[_transition.zoomedInLimitXIndices.max],
|
|
args.progress),
|
|
};
|
|
const auto oneDay = std::abs(xPercentage[localRangeIndex]
|
|
- xPercentage[localRangeIndex + ((xIndex == backIndex) ? -1 : 1)]);
|
|
// Read FindStackXIndicesFromRawXPercentages.
|
|
const auto offset = (_transition.zoomedInLimitXIndices.max == backIndex)
|
|
? -oneDay
|
|
: 0.;
|
|
const auto resultRange = Limits{
|
|
InterpolationRatio(
|
|
_transition.zoomedInLimit.min,
|
|
_transition.zoomedInLimit.max,
|
|
_transition.zoomedInRange.min + oneDay * 0.25 + offset),
|
|
InterpolationRatio(
|
|
_transition.zoomedInLimit.min,
|
|
_transition.zoomedInLimit.max,
|
|
_transition.zoomedInRange.max + oneDay * 0.75 + offset),
|
|
};
|
|
return { true, _transition.zoomedInLimitXIndices, resultRange };
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}
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} // namespace Statistic
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