/******************************************************************************
    Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.com>

    This program 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 2 of the License, or
    (at your option) any later version.

    This program 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.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/

#pragma once

#include <QApplication>
#include <QMessageBox>
#include <QWidget>
#include <QThread>
#include <obs.hpp>

#include <functional>
#include <memory>
#include <vector>

#define QT_UTF8(str) QString::fromUtf8(str)
#define QT_TO_UTF8(str) str.toUtf8().constData()

class QDataStream;
class QWidget;
class QLayout;
class QString;
struct gs_window;

class OBSMessageBox {
public:
	static QMessageBox::StandardButton question(
			QWidget *parent,
			const QString &title,
			const QString &text,
			QMessageBox::StandardButtons buttons = QMessageBox::StandardButtons( QMessageBox::Yes | QMessageBox::No ),
			QMessageBox::StandardButton defaultButton = QMessageBox::NoButton);
	static void information(
			QWidget *parent,
			const QString &title,
			const QString &text);
};

void OBSErrorBox(QWidget *parent, const char *msg, ...);

void QTToGSWindow(WId windowId, gs_window &gswindow);

uint32_t TranslateQtKeyboardEventModifiers(Qt::KeyboardModifiers mods);

QDataStream &operator<<(QDataStream &out,
		const std::vector<std::shared_ptr<OBSSignal>> &signal_vec);
QDataStream &operator>>(QDataStream &in,
		std::vector<std::shared_ptr<OBSSignal>> &signal_vec);
QDataStream &operator<<(QDataStream &out, const OBSScene &scene);
QDataStream &operator>>(QDataStream &in, OBSScene &scene);
QDataStream &operator<<(QDataStream &out, const OBSSceneItem &si);
QDataStream &operator>>(QDataStream &in, OBSSceneItem &si);

QThread *CreateQThread(std::function<void()> func);

void ExecuteFuncSafeBlock(std::function<void()> func);
void ExecuteFuncSafeBlockMsgBox(
		std::function<void()> func,
		const QString &title,
		const QString &text);

/* allows executing without message boxes if starting up, otherwise with a
 * message box */
void EnableThreadedMessageBoxes(bool enable);
void ExecThreadedWithoutBlocking(
		std::function<void()> func,
		const QString &title,
		const QString &text);

class SignalBlocker {
	QWidget *widget;
	bool blocked;

public:
	inline explicit SignalBlocker(QWidget *widget_) : widget(widget_)
	{
		blocked = widget->blockSignals(true);
	}

	inline ~SignalBlocker()
	{
		widget->blockSignals(blocked);
	}
};

void DeleteLayout(QLayout *layout);

static inline Qt::ConnectionType WaitConnection()
{
	return QThread::currentThread() == qApp->thread()
		? Qt::DirectConnection
		: Qt::BlockingQueuedConnection;
}