Method checkChatBackground

Telegram/SourceFiles/mainwidget.cpp:1241–1265

}

void MainWidget::checkChatBackground() {
	if (!_background || _background->generating) {
		return;
	}
	const auto &media = _background->dataMedia;
	Assert(media != nullptr);
	if (!media->loaded()) {
		return;
	}

	const auto document = _background->data.document();
	Assert(document != nullptr);

	const auto generateCallback = [=](QImage &&image) {
		const auto background = base::take(_background);
		const auto ready = image.isNull()
			? Data::DefaultWallPaper()
			: background->data;
		setReadyChatBackground(ready, std::move(image));
	};
	_background->generating = Data::ReadBackgroundImageAsync(
		media.get(),
		Ui::PreprocessBackgroundImage,
		generateCallback);
}

Image *MainWidget::newBackgroundThumb() {
	return !_background