hotkeywidget.h
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hotkeywidget.h
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	/*
	* Copyright (C) 2016 Christian Kaiser
	*
	* 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 library; if not, write to the Free Software
	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*
	*/
	#ifndef HOTKEYWIDGET_H
	#define HOTKEYWIDGET_H

	#include <QPushButton>

	class HotkeyWidget : public QPushButton
	{
	Q_OBJECT

	public:
	HotkeyWidget(QWidget *parent = 0);

	void setHotkey(const QString &hotkey);
	QString hotkey() const;

	signals:
	void invalidHotkeyError();

	private:
	void setHotkeyText();
	void showError();

	private slots:
	void hideError();

	protected:
	// Event overrides:
	bool event(QEvent *event);
	void keyPressEvent(QKeyEvent *event);

	private:
	QKeySequence mHotkey;
	bool mShowingError;
	bool mKeyboardFocus;
	QString mDefaultStyleSheet;

	bool isValid(int key) const;
	bool isModifier(int key) const;
	};

	#endif // HOTKEYWIDGET_H