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67 lines
1.5 KiB
C++
67 lines
1.5 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/segment_tree.h"
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#include "statistics/statistics_common.h"
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#include "statistics/statistics_types.h"
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#include "statistics/view/abstract_chart_view.h"
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#include "ui/effects/animation_value.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 BarChartView final : public AbstractChartView {
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public:
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BarChartView(bool isStack);
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~BarChartView() 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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void paintChartAndSelected(QPainter &p, const PaintContext &c);
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struct {
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Limits full;
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std::vector<ChartValue> ySum;
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SegmentTree ySumSegmentTree;
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} _cachedHeightLimits;
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const bool _isStack;
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DoubleLineRatios _cachedLineRatios; // Non-stack.
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Limits _lastPaintedXIndices;
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int _lastSelectedXIndex = -1;
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float64 _lastSelectedXProgress = 0;
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CachedSelectedPoints _selectedPoints; // Non-stack.
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};
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} // namespace Statistic
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