/*
 * Olive Community Edition - Non-Linear Video Editor
 * Copyright (C) 2025 Olive CE Team
 *
 * 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 3 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/>.
 */

#ifndef SCROLLINGLABEL_H
#define SCROLLINGLABEL_H

#include <QTimer>
#include <QWidget>

namespace olive
{

class ScrollingLabel : public QWidget {
	Q_OBJECT
public:
	ScrollingLabel(QWidget *parent = nullptr);
	ScrollingLabel(const QStringList &text, QWidget *parent = nullptr);

	void SetText(const QStringList &text);

	void StartAnimating()
	{
		timer_.start();
	}

	void StopAnimating()
	{
		timer_.stop();
	}

protected:
	virtual void paintEvent(QPaintEvent *e) override;

private:
	static void SetOpacityOfScanLine(uchar *scan_line, int width, int channels,
									 double mul);

	static const int kMinLineHeight;

	QStringList text_;

	int text_height_;

	QTimer timer_;

	int animate_;

private slots:
	void AnimationUpdate();
};

}

#endif // SCROLLINGLABEL_H