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Telegram/SourceFiles/ui/top_background_gradient.h

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+/*
+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 UniqueGift;
+struct UniqueGiftBackdrop;
+} // namespace Data
+
+namespace Ui::Text {
+class CustomEmoji;
+} // namespace Ui::Text
+
+class PeerData;
+
+namespace Ui {
+
+struct PatternPoint {
+	QPointF position;
+	float64 scale = 1.;
+	float64 opacity = 1.;
+};
+
+[[nodiscard]] QImage CreateTopBgGradient(
+	QSize size,
+	const Data::UniqueGift &gift);
+
+[[nodiscard]] QImage CreateTopBgGradient(
+	QSize size,
+	const Data::UniqueGiftBackdrop &backdrop);
+
+[[nodiscard]] QImage CreateTopBgGradient(
+	QSize size,
+	QColor centerColor,
+	QColor edgeColor,
+	bool rounded = true,
+	QPoint offset = QPoint());
+
+[[nodiscard]] QImage CreateTopBgGradient(
+	QSize size,
+	not_null<PeerData*> peer,
+	QPoint offset = QPoint());
+
+[[nodiscard]] const std::vector<PatternPoint> &PatternBgPoints();
+[[nodiscard]] const std::vector<PatternPoint> &PatternBgPointsSmall();
+
+void PaintBgPoints(
+	QPainter &p,
+	const std::vector<PatternPoint> &points,
+	base::flat_map<float64, QImage> &cache,
+	not_null<Ui::Text::CustomEmoji*> emoji,
+	const Data::UniqueGift &gift,
+	const QRect &rect,
+	float64 shown = 1.);
+
+void PaintBgPoints(
+	QPainter &p,
+	const std::vector<PatternPoint> &points,
+	base::flat_map<float64, QImage> &cache,
+	not_null<Ui::Text::CustomEmoji*> emoji,
+	const Data::UniqueGiftBackdrop &backdrop,
+	const QRect &rect,
+	float64 shown = 1.);
+
+void PaintBgPoints(
+	QPainter &p,
+	const std::vector<PatternPoint> &points,
+	base::flat_map<float64, QImage> &cache,
+	not_null<Ui::Text::CustomEmoji*> emoji,
+	const QColor &patternColor,
+	const QRect &rect,
+	float64 shown = 1.);
+
+} // namespace Ui