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

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