128 lines
2.8 KiB
C++
128 lines
2.8 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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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 LinesFilterController;
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struct PaintContext final {
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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 ▭
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bool footer = false;
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};
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struct CachedSelectedPoints final {
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[[nodiscard]] bool isSame(int x, const PaintContext &c) const;
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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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class DoubleLineRatios final : std::pair<float64, float64> {
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public:
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DoubleLineRatios(bool isDouble);
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operator bool() const {
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return first > 0;
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}
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void init(const Data::StatisticalChart &chartData);
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[[nodiscard]] float64 ratio(int lineId) const;
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};
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class AbstractChartView {
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public:
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virtual ~AbstractChartView() = default;
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virtual void paint(QPainter &p, const PaintContext &c) = 0;
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virtual 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) = 0;
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[[nodiscard]] virtual 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) = 0;
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struct HeightLimits final {
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Limits full;
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Limits ranged;
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};
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[[nodiscard]] virtual HeightLimits heightLimits(
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Data::StatisticalChart &chartData,
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Limits xIndices) = 0;
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struct LocalZoomResult final {
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bool hasZoom = false;
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Limits limitIndices;
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Limits range;
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};
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struct LocalZoomArgs final {
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enum class Type {
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Prepare,
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SkipCalculation,
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CheckAvailability,
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Process,
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SaveZoomFromFooter,
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};
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const Data::StatisticalChart &chartData;
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Type type;
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float64 progress = 0.;
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int xIndex = 0;
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};
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virtual LocalZoomResult maybeLocalZoom(const LocalZoomArgs &args) {
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return {};
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}
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virtual void handleMouseMove(
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const Data::StatisticalChart &chartData,
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const QRect &rect,
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const QPoint &p) {
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}
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void setUpdateCallback(Fn<void()> callback);
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void update();
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void setLinesFilterController(std::shared_ptr<LinesFilterController> c);
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protected:
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using LinesFilterControllerPtr = std::shared_ptr<LinesFilterController>;
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[[nodiscard]] LinesFilterControllerPtr linesFilterController() const;
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private:
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LinesFilterControllerPtr _linesFilterController;
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Fn<void()> _updateCallback;
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};
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AbstractChartView::HeightLimits DefaultHeightLimits(
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const DoubleLineRatios &ratios,
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const std::shared_ptr<LinesFilterController> &linesFilter,
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Data::StatisticalChart &chartData,
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Limits xIndices);
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} // namespace Statistic
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