/*
 * Copyright (c) 2007 Gustavo Pichorim Boiko <gustavo.boiko@kdemail.net>
 * Copyright (c) 2007 Harry Bock <hbock@providence.edu>
 * 
 *  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 __OUTPUTCONFIG_H__
#define __OUTPUTCONFIG_H__

#include <QWidget>
#include <QTextStream>
#include <QTimer>
#include "ui_outputconfigbase.h"
#include "randr.h"
#include "randroutput.h"

class RandROutput;

class OutputConfig;
typedef QList<OutputConfig*> OutputConfigList;

class OutputConfig : public QWidget, public Ui::OutputConfigBase 
{
    Q_OBJECT
public:
    OutputConfig(QWidget *parent, RandROutput *output, OutputConfigList preceding, bool unified);
    ~OutputConfig();
    
    /** Enumeration describing two related outputs (i.e. VGA LeftOf TMDS) */
    enum Relation {
        Absolute = -1,
        SameAs = 0,
        LeftOf = 1,
        RightOf,
        Over,
        Under
    };
    // NOTE: I'd love to have used Above and Below but Xlib already defines them
    // and that confuses GCC.

    bool isActive() const;
    QPoint position(void) const;
    QSize resolution(void) const;
    QRect rect() const;
    float refreshRate(void) const;
    int rotation(void) const;
    
    static QString positionName(Relation position);
    RandROutput *output(void) const;

    bool hasPendingChanges( const QPoint& normalizePos ) const;
    void setUnifyOutput(bool unified);
public slots:
    void load();
    void updateSizeList(void);

protected slots:
    void setConfigDirty(void);
    
    void updatePositionList(void);
    void updatePositionListDelayed(void);
    void updateRotationList(void);
    void updateRateList(void);
    void updateRateList(int resolutionIndex);
    
    void positionComboChanged(int item);	
    void outputChanged(RROutput output, int changed);

signals:
    void updateView();
    void optionChanged();
    void connectedChanged(bool);

private:
    static bool isRelativeTo(QRect rect, QRect to, Relation rel);
    bool m_changed;
    bool m_unified;
    QPoint m_pos;
    QTimer updatePositionListTimer;
    
    RandROutput *m_output;
    // List of configs shown before this one. Relative positions may be given only
    // relative to these in order to avoid cycles.
    OutputConfigList precedingOutputConfigs;
};

#endif // __OUTPUTCONFIG_H__