79 lines
2.3 KiB
C++
79 lines
2.3 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/chart_line_view_context.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 "ui/painter.h"
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#include "styles/style_boxes.h"
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#include "styles/style_statistics.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 &xIndices,
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const Limits &xPercentageLimits,
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const Limits &heightLimits,
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const QRect &rect,
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const ChartLineViewContext &lineViewContext,
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DetailsPaintContext &detailsPaintContext) {
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const auto currentMinHeight = rect.y(); //
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const auto currentMaxHeight = rect.height() + rect.y(); //
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for (const auto &line : chartData.lines) {
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p.setOpacity(lineViewContext.alpha(line.id));
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if (!p.opacity()) {
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continue;
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}
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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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auto first = true;
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auto chartPath = QPainterPath();
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const auto localStart = std::max(0, int(xIndices.min));
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const auto localEnd = std::min(
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int(chartData.xPercentage.size() - 1),
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int(xIndices.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 = rect.width()
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* ((chartData.xPercentage[i] - xPercentageLimits.min)
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/ (xPercentageLimits.max - xPercentageLimits.min));
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const auto yPercentage = (line.y[i] - heightLimits.min)
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/ float64(heightLimits.max - heightLimits.min);
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const auto yPoint = rect.y() + (1. - yPercentage) * rect.height();
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if (i == detailsPaintContext.xIndex) {
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detailsPaintContext.dots.push_back({
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QPointF(xPoint, yPoint),
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line.color,
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});
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}
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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(QPen(line.color, st::statisticsChartLineWidth));
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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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p.setOpacity(1.);
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}
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} // namespace Statistic
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