Support PeerData::isVerifyCodes() peer type.

Telegram/SourceFiles/ui/dynamic_thumbnails.cpp

@@ -157,6 +157,19 @@ private:
 
 };
 
+class VerifyCodesUserpic final : public DynamicImage {
+public:
+	std::shared_ptr<DynamicImage> clone() override;
+
+	QImage image(int size) override;
+	void subscribeToUpdates(Fn<void()> callback) override;
+
+private:
+	QImage _frame;
+	int _paletteVersion = 0;
+
+};
+
 class HiddenAuthorUserpic final : public DynamicImage {
 public:
 	std::shared_ptr<DynamicImage> clone() override;
@@ -495,6 +508,37 @@ void RepliesUserpic::subscribeToUpdates(Fn<void()> callback) {
 	}
 }
 
+std::shared_ptr<DynamicImage> VerifyCodesUserpic::clone() {
+	return std::make_shared<VerifyCodesUserpic>();
+}
+
+QImage VerifyCodesUserpic::image(int size) {
+	const auto good = (_frame.width() == size * _frame.devicePixelRatio());
+	const auto paletteVersion = style::PaletteVersion();
+	if (!good || _paletteVersion != paletteVersion) {
+		_paletteVersion = paletteVersion;
+
+		const auto ratio = style::DevicePixelRatio();
+		if (!good) {
+			_frame = QImage(
+				QSize(size, size) * ratio,
+				QImage::Format_ARGB32_Premultiplied);
+			_frame.setDevicePixelRatio(ratio);
+		}
+		_frame.fill(Qt::transparent);
+
+		auto p = Painter(&_frame);
+		Ui::EmptyUserpic::PaintVerifyCodes(p, 0, 0, size, size);
+	}
+	return _frame;
+}
+
+void VerifyCodesUserpic::subscribeToUpdates(Fn<void()> callback) {
+	if (!callback) {
+		_frame = {};
+	}
+}
+
 std::shared_ptr<DynamicImage> HiddenAuthorUserpic::clone() {
 	return std::make_shared<HiddenAuthorUserpic>();
 }
@@ -623,6 +667,10 @@ std::shared_ptr<DynamicImage> MakeRepliesThumbnail() {
 	return std::make_shared<RepliesUserpic>();
 }
 
+std::shared_ptr<DynamicImage> MakeVerifyCodesThumbnail() {
+	return std::make_shared<VerifyCodesUserpic>();
+}
+
 std::shared_ptr<DynamicImage> MakeHiddenAuthorThumbnail() {
 	return std::make_shared<HiddenAuthorUserpic>();
 }