/*
    QAD - Qt ADvanced

    Ivan Pelipenko peri4ko@yandex.ru, Andrey Bychkov work.a.b@yandex.ru

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser 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 Lesser General Public License for more details.

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

#ifndef ETABWIDGET_H
#define ETABWIDGET_H

#include "qad_application_export.h"

#include <QApplication>
#include <QDebug>
#include <QEvent>
#include <QHBoxLayout>
#include <QLayout>
#include <QMouseEvent>
#include <QPushButton>
#include <QTabBar>
#include <QTabWidget>
#include <QToolButton>


class QAD_APPLICATION_EXPORT ETabWidget: public QTabWidget {
	Q_OBJECT

public:
	explicit ETabWidget(QWidget * parent = 0);

	void retranslate();
	void addTabButton(int role, const QIcon & icon, const QString & toolTip = QString()) { buttons << TabButton(role, icon, toolTip); }
	int addTab(QWidget * page, const QIcon & icon, const QString & label);
	int addTab(QWidget * page, const QString & label) { return addTab(page, QIcon(), label); }
	void setButtonVisible(int role, bool yes);

private:
	bool eventFilter(QObject * o, QEvent * e);
	void tabInserted(int) { emit countChanged(); }
	void tabRemoved(int) { emit countChanged(); }
	void changeEvent(QEvent * e);

	struct QAD_APPLICATION_EXPORT TabButton {
		TabButton(int r, const QIcon & i, const QString & t) {
			role       = r;
			icon       = i;
			visible    = true;
			srcToolTip = t;
			toolTip    = QApplication::translate("MainWindow", t.toUtf8(), 0 /*, QCoreApplication::UnicodeUTF8*/);
		}
		int role;
		bool visible;
		QIcon icon;
		QString srcToolTip;
		QString toolTip;
	};

	QList<TabButton> buttons;

private slots:
	void buttonClicked();

signals:
	void countChanged();
	void tabHovered(int tab);
	void tabButtonClicked(int tab, int role);
};

#endif // ETABWIDGET_H