John Preston
09fa84d045
Task: 2026/10/01/paint-the-gram-card-background-like-the-ios-card-image-and-cache-it-per-chat
73 lines
1.8 KiB
C++
73 lines
1.8 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 "base/weak_ptr.h"
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#include "ui/effects/animations.h"
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#include "wallet/wallet_card_gradient.h"
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#include <QtCore/QPointer>
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#include <QtCore/QRectF>
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class QWidget;
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namespace Wallet {
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class CardAngle final : public base::has_weak_ptr {
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public:
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CardAngle();
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// Degrees clockwise, following the cursor in the card's active window.
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void track(
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not_null<const void*> card,
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not_null<QWidget*> widget,
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QRectF rect);
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void forget(not_null<const void*> card);
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[[nodiscard]] float64 value(crl::time now) const;
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[[nodiscard]] CardBackground &background();
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private:
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struct Card {
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const void *key = nullptr;
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QPointer<QWidget> widget;
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QRect rect;
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float64 center = 0.;
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};
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[[nodiscard]] float64 progress(crl::time now) const;
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void follow(bool repaint, bool immediate = false);
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void turnTo(float64 target, bool repaint, bool immediate);
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void repaintCards();
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[[nodiscard]] bool pruneCards();
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void cursorEvent(QPointF cursor);
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void windowActivated();
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[[nodiscard]] std::optional<float64> cursorInWindow() const;
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void scheduleFollow();
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void scheduleStop();
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void stopTracking();
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[[nodiscard]] bool windowActive() const;
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void subscribe(not_null<QWidget*> window);
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std::vector<Card> _cards;
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QPointer<QWidget> _window;
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std::optional<float64> _cursor;
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Ui::Animations::Basic _animation;
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CardBackground _background;
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float64 _from = 0.;
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float64 _to = 0.;
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float64 _ramp = 0.;
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float64 _center = 0.;
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rpl::lifetime _tracking;
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bool _followScheduled = false;
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bool _stopScheduled = false;
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bool _shown = false;
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};
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} // namespace Wallet
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