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

111 lines
2.3 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
namespace Data {
struct StatisticalChart;
} // namespace Data
namespace Statistic {
struct Limits;
class LinesFilterController;
struct PaintContext final {
const Data::StatisticalChart &chartData;
const Limits &xIndices;
const Limits &xPercentageLimits;
const Limits &heightLimits;
const QRect ▭
bool footer = false;
};
class AbstractChartView {
public:
virtual ~AbstractChartView() = default;
virtual void paint(QPainter &p, const PaintContext &c) = 0;
virtual void paintSelectedXIndex(
QPainter &p,
const PaintContext &c,
int selectedXIndex,
float64 progress) = 0;
[[nodiscard]] virtual int findXIndexByPosition(
const Data::StatisticalChart &chartData,
const Limits &xPercentageLimits,
const QRect &rect,
float64 x) = 0;
struct HeightLimits final {
Limits full;
Limits ranged;
};
[[nodiscard]] virtual HeightLimits heightLimits(
Data::StatisticalChart &chartData,
Limits xIndices) = 0;
struct LocalZoomResult final {
bool hasZoom = false;
Limits limitIndices;
Limits range;
};
struct LocalZoomArgs final {
enum class Type {
Prepare,
SkipCalculation,
CheckAvailability,
Process,
SaveZoomFromFooter,
};
const Data::StatisticalChart &chartData;
Type type;
float64 progress = 0.;
int xIndex = 0;
};
virtual LocalZoomResult maybeLocalZoom(const LocalZoomArgs &args) {
return {};
}
virtual void handleMouseMove(
const Data::StatisticalChart &chartData,
const QRect &rect,
const QPoint &p) {
}
void setUpdateCallback(Fn<void()> callback) {
_updateCallback = std::move(callback);
}
void update() {
if (_updateCallback) {
_updateCallback();
}
}
void setLinesFilterController(std::shared_ptr<LinesFilterController> c) {
_linesFilterController = std::move(c);
}
protected:
using LinesFilterControllerPtr = std::shared_ptr<LinesFilterController>;
[[nodiscard]] LinesFilterControllerPtr linesFilterController() {
return _linesFilterController;
}
private:
LinesFilterControllerPtr _linesFilterController;
Fn<void()> _updateCallback;
};
} // namespace Statistic