89 lines
2.1 KiB
C++
89 lines
2.1 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 "data/data_statistics.h"
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#include "statistics/chart_horizontal_lines_data.h"
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#include "statistics/statistics_common.h"
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#include "ui/effects/animation_value.h"
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#include "ui/effects/animations.h"
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#include "ui/rp_widget.h"
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namespace Statistic {
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class ChartWidget : public Ui::RpWidget {
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public:
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ChartWidget(not_null<Ui::RpWidget*> parent);
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void setChartData(Data::StatisticalChart chartData);
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void addHorizontalLine(Limits newHeight, bool animated);
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protected:
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void paintEvent(QPaintEvent *e) override;
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private:
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class Footer;
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class ChartAnimationController final {
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public:
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ChartAnimationController(Fn<void()> &&updateCallback);
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void setXPercentageLimits(
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Data::StatisticalChart &chartData,
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Limits xPercentageLimits,
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crl::time now);
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void start();
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void finish();
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void resetAlpha();
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void tick(
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crl::time now,
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std::vector<ChartHorizontalLinesData> &horizontalLines);
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[[nodiscard]] Limits currentXLimits() const;
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[[nodiscard]] Limits currentHeightLimits() const;
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[[nodiscard]] Limits finalHeightLimits() const;
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[[nodiscard]] rpl::producer<> heightAnimationStarts() const;
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private:
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Ui::Animations::Basic _animation;
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crl::time _lastUserInteracted = 0;
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crl::time _alphaAnimationStartedAt = 0;
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bool _heightAnimationStarted = false;
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anim::value _animationValueXMin;
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anim::value _animationValueXMax;
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anim::value _animationValueHeightMin;
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anim::value _animationValueHeightMax;
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anim::value _animValueYAlpha;
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Limits _finalHeightLimits;
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float _dtHeightSpeed = 0.;
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Limits _dtCurrent;
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rpl::event_stream<> _heightAnimationStarts;
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};
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std::unique_ptr<Footer> _footer;
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Data::StatisticalChart _chartData;
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bool _useMinHeight = false;
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ChartAnimationController _animationController;
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crl::time _lastHeightLimitsChanged = 0;
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std::vector<ChartHorizontalLinesData> _horizontalLines;
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};
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} // namespace Statistic
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