106 lines
3.0 KiB
C++
106 lines
3.0 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/linear_chart_view.h"
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#include "data/data_statistics.h"
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#include "statistics/statistics_common.h"
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#include "ui/effects/animation_value_f.h"
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#include "styles/style_boxes.h"
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namespace Statistic {
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void PaintLinearChartView(
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QPainter &p,
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const Data::StatisticalChart &chartData,
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const Limits &xPercentageLimitsWas,
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const Limits &xPercentageLimitsNow,
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const Limits &xPercentageLimitsNowY,
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float64 progress,
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const QRect &rect) {
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const auto offset = 0;
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const auto currentMinHeight = rect.y(); //
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const auto currentMaxHeight = rect.height() + rect.y(); //
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const auto xPercentageLimits = xPercentageLimitsNow;
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for (const auto &line : chartData.lines) {
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const auto additionalP = (chartData.xPercentage.size() < 2)
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? 0.
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: (chartData.xPercentage.front() * rect.width());
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const auto additionalPoints = 0;
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auto first = true;
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auto chartPath = QPainterPath();
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const auto startXIndex = chartData.findStartIndex(
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xPercentageLimits.min);
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const auto endXIndex = chartData.findEndIndex(
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startXIndex,
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xPercentageLimits.max);
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const auto localStart = std::max(0, startXIndex - additionalPoints);
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const auto localEnd = std::min(
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int(chartData.xPercentage.size() - 1),
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endXIndex + additionalPoints);
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auto minY = std::numeric_limits<float64>::max();
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auto maxY = 0.;
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auto minYIndex = 0;
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auto maxYIndex = 0;
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const auto tempXPercentage = Limits{
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.min = *ranges::lower_bound(
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chartData.xPercentage,
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anim::interpolateF(xPercentageLimitsWas.min, xPercentageLimitsNow.min, progress)),
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.max = *ranges::lower_bound(
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chartData.xPercentage,
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anim::interpolateF(xPercentageLimitsWas.max, xPercentageLimitsNow.max, progress)),
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};
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for (auto i = 0; i < chartData.xPercentage.size(); i++) {
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if (chartData.xPercentage[i] == tempXPercentage.min) {
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minYIndex = i;
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}
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if (chartData.xPercentage[i] == tempXPercentage.max) {
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maxYIndex = i;
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}
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}
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for (auto i = minYIndex; i < maxYIndex; i++) {
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if (line.y[i] > maxY) {
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maxY = line.y[i];
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}
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if (line.y[i] < minY) {
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minY = line.y[i];
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}
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}
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minY = xPercentageLimitsNowY.min;
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maxY = xPercentageLimitsNowY.max;
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for (auto i = localStart; i <= localEnd; i++) {
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if (line.y[i] < 0) {
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continue;
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}
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const auto xPoint = ((chartData.xPercentage[i] - xPercentageLimits.min) / (xPercentageLimits.max - xPercentageLimits.min)) * rect.width()
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- offset;
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const auto yPercentage = (line.y[i] - minY)
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/ float64(maxY - minY);
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const auto yPoint = rect.y() + (1. - yPercentage) * rect.height();
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if (first) {
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first = false;
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chartPath.moveTo(xPoint, yPoint);
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}
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chartPath.lineTo(xPoint, yPoint);
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}
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p.setPen(line.color);
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p.setBrush(Qt::NoBrush);
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p.drawPath(chartPath);
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}
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p.setPen(st::boxTextFg);
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}
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} // namespace Statistic
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