tdesktop/Telegram/SourceFiles/statistics/view/linear_chart_view.h

96 lines
2.2 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#pragma once
#include "statistics/statistics_common.h"
#include "statistics/view/abstract_chart_view.h"
namespace Data {
struct StatisticalChart;
} // namespace Data
namespace Statistic {
struct Limits;
class LinearChartView final : public AbstractChartView {
public:
LinearChartView(bool isDouble);
~LinearChartView() override final;
void paint(QPainter &p, const PaintContext &c) override;
void paintSelectedXIndex(
QPainter &p,
const PaintContext &c,
int selectedXIndex,
float64 progress) override;
int findXIndexByPosition(
const Data::StatisticalChart &chartData,
const Limits &xPercentageLimits,
const QRect &rect,
float64 x) override;
[[nodiscard]] HeightLimits heightLimits(
Data::StatisticalChart &chartData,
Limits xIndices) override;
private:
DoubleLineRatios _cachedLineRatios;
[[nodiscard]] float64 lineRatio() const;
struct CacheToken final {
explicit CacheToken() = default;
explicit CacheToken(
Limits xIndices,
Limits xPercentageLimits,
Limits heightLimits,
QSize rectSize)
: xIndices(std::move(xIndices))
, xPercentageLimits(std::move(xPercentageLimits))
, heightLimits(std::move(heightLimits))
, rectSize(std::move(rectSize)) {
}
bool operator==(const CacheToken &other) const {
return (rectSize == other.rectSize)
&& (xIndices.min == other.xIndices.min)
&& (xIndices.max == other.xIndices.max)
&& (xPercentageLimits.min == other.xPercentageLimits.min)
&& (xPercentageLimits.max == other.xPercentageLimits.max)
&& (heightLimits.min == other.heightLimits.min)
&& (heightLimits.max == other.heightLimits.max);
}
bool operator!=(const CacheToken &other) const {
return !(*this == other);
}
Limits xIndices;
Limits xPercentageLimits;
Limits heightLimits;
QSize rectSize;
};
struct Cache final {
QImage image;
CacheToken lastToken;
bool hq = false;
};
base::flat_map<int, Cache> _mainCaches;
base::flat_map<int, Cache> _footerCaches;
CachedSelectedPoints _selectedPoints;
};
} // namespace Statistic