pickfileradio.h

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/*
 *  pickfileradio.h  -  radio button with an associated file picker
 *  Program:  kalarm
 *  Copyright © 2005,2009 by David Jarvie <djarvie@kde.org>
 *
 *  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, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

#ifndef PICKFILERADIO_H
#define PICKFILERADIO_H

#include "radiobutton.h"

class QPushButton;
class ButtonGroup;
class LineEdit;

class PickFileRadio : public RadioButton
{
        Q_OBJECT
    public:
        PickFileRadio(QPushButton* button, LineEdit* edit, const QString& text, ButtonGroup* group, QWidget* parent);
        PickFileRadio(const QString& text, ButtonGroup* group, QWidget* parent);
        void            init(QPushButton* button, LineEdit* edit = 0);
        virtual void    setReadOnly(bool readOnly);
        virtual QString pickFile() = 0;
        void            setFile(const QString& file);
        QString         file() const;
        LineEdit*       fileEdit() const    { return mEdit; }
        QPushButton*    pushButton() const  { return mButton; }

    public slots:
        virtual void    setEnabled(bool);

    signals:
        void          fileChanged();   // emitted whenever the selected file changes

    private slots:
        void          slotSelectionChanged(QAbstractButton*);
        QString       slotPickFile();
        void          setLastButton();

    private:
        bool          pickFileIfNone();

        ButtonGroup*     mGroup;         // button group which radio button is in
        LineEdit*        mEdit;          // file name edit box, or null if none
        QPushButton*     mButton;        // push button to pick a file
        QString          mFile;          // saved file name (if mEdit is null)
        QAbstractButton* mLastButton;    // previous radio button selected
        bool             mRevertButton;  // true to revert to the previous radio button selection
};

#endif // PICKFILERADIO_H

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