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Telegram/SourceFiles/calls/calls_panel_background.h

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+// This file is part of Desktop App Toolkit,
+// a set of libraries for developing nice desktop applications.
+//
+// For license and copyright information please follow this link:
+// https://github.com/desktop-app/legal/blob/master/LEGAL
+//
+#pragma once
+
+#include "data/data_peer_colors.h"
+
+class DocumentData;
+class PeerData;
+
+namespace Data {
+class CustomEmoji;
+} // namespace Data
+
+namespace Ui {
+namespace Text {
+class CustomEmoji;
+} // namespace Text
+} // namespace Ui
+
+namespace Calls {
+
+class PanelBackground final {
+public:
+	explicit PanelBackground(
+		not_null<PeerData*> peer,
+		Fn<void()> updateCallback);
+
+	void paint(
+		QPainter &p,
+		QSize widgetSize,
+		int bodyTop,
+		int photoTop,
+		int photoSize,
+		const QRegion &region);
+
+	[[nodiscard]] rpl::lifetime &lifetime();
+
+	[[nodiscard]] std::optional<QColor> textColorOverride(
+		const style::color &defaultColor) const;
+
+private:
+	void updateBrush(
+		QSize widgetSize,
+		QPoint center,
+		float64 radius,
+		const std::vector<QColor> &colors);
+	void renderPattern(const QRect &rect, DocumentId emojiId);
+	void updateColors();
+	void updateEmojiId();
+	[[nodiscard]] std::optional<QColor> edgeColor() const;
+
+	const not_null<PeerData*> _peer;
+	const Fn<void()> _updateCallback;
+
+	QBrush _brush;
+	QSize _brushSize;
+
+	std::optional<Data::ColorProfileSet> _colors;
+
+	std::unique_ptr<Ui::Text::CustomEmoji> _emoji;
+	base::flat_map<float64, QImage> _cache;
+	QImage _cachedImage;
+	QRect _cachedRect;
+	DocumentId _cachedEmojiId = 0;
+	DocumentId _currentEmojiId = 0;
+
+	rpl::lifetime _lifetime;
+
+};
+
+} // namespace Calls