104 lines
2.4 KiB
C++
104 lines
2.4 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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#pragma once
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#include "statistics/statistics_common.h"
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#include "statistics/view/abstract_chart_view.h"
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namespace Data {
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struct StatisticalChart;
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} // namespace Data
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namespace Statistic {
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struct Limits;
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class LinearChartView final : public AbstractChartView {
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public:
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using CachedLineRatios = std::pair<float64, float64>;
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LinearChartView(bool isDouble);
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~LinearChartView() override final;
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void paint(QPainter &p, const PaintContext &c) override;
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void paintSelectedXIndex(
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QPainter &p,
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const PaintContext &c,
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int selectedXIndex,
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float64 progress) override;
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int findXIndexByPosition(
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const Data::StatisticalChart &chartData,
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const Limits &xPercentageLimits,
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const QRect &rect,
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float64 x) override;
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[[nodiscard]] HeightLimits heightLimits(
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Data::StatisticalChart &chartData,
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Limits xIndices) override;
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private:
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CachedLineRatios _cachedLineRatios;
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[[nodiscard]] float64 lineRatio() const;
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struct CacheToken final {
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explicit CacheToken() = default;
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explicit CacheToken(
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Limits xIndices,
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Limits xPercentageLimits,
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Limits heightLimits,
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QSize rectSize)
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: xIndices(std::move(xIndices))
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, xPercentageLimits(std::move(xPercentageLimits))
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, heightLimits(std::move(heightLimits))
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, rectSize(std::move(rectSize)) {
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}
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bool operator==(const CacheToken &other) const {
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return (rectSize == other.rectSize)
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&& (xIndices.min == other.xIndices.min)
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&& (xIndices.max == other.xIndices.max)
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&& (xPercentageLimits.min == other.xPercentageLimits.min)
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&& (xPercentageLimits.max == other.xPercentageLimits.max)
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&& (heightLimits.min == other.heightLimits.min)
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&& (heightLimits.max == other.heightLimits.max);
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}
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bool operator!=(const CacheToken &other) const {
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return !(*this == other);
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}
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Limits xIndices;
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Limits xPercentageLimits;
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Limits heightLimits;
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QSize rectSize;
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};
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struct Cache final {
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QImage image;
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CacheToken lastToken;
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bool hq = false;
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};
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base::flat_map<int, Cache> _mainCaches;
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base::flat_map<int, Cache> _footerCaches;
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struct SelectedPoints final {
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int lastXIndex = -1;
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Limits lastHeightLimits;
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Limits lastXLimits;
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base::flat_map<int, QPointF> points;
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};
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SelectedPoints _selectedPoints;
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};
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} // namespace Statistic
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