tdesktop/Telegram/SourceFiles/window/themes/window_theme_preview.h

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org

Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.

Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#pragma once

#include "window/themes/window_theme.h"

namespace Window {
namespace Theme {

struct CurrentData {
	int32 backgroundId = 0;
	QImage backgroundImage;
	bool backgroundTiled = false;
};

std::unique_ptr<Preview> GeneratePreview(
	const QString &filepath,
	CurrentData &&data);

int DefaultPreviewTitleHeight();
void DefaultPreviewWindowFramePaint(
	QImage &preview,
	const style::palette &palette,
	QRect body,
	int outerWidth);

} // namespace Theme
} // namespace Window