mseekbar.cpp

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/***************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (directui@nokia.com)
**
** This file is part of libmeegotouch.
**
** If you have questions regarding the use of this file, please contact
** Nokia at directui@nokia.com.
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation
** and appearing in the file LICENSE.LGPL included in the packaging
** of this file.
**
****************************************************************************/

#include "mseekbar.h"
#include "mslider_p.h"
#include "mtheme.h"

#include "mwidgetcreator.h"
M_REGISTER_WIDGET(MSeekBar)

MSeekBar::MSeekBar(QGraphicsItem *parent, MSeekBarModel *model) :
    MSlider(new MSliderPrivate, model == NULL ? new MSeekBarModel : model, parent)
{
}

// Sets the minimum of the active area. Does not have to depend on actual range.
void MSeekBar::setLoadedContentMinimum(int minimum)
{
    int mMinimum = model()->loadedContentMin();
    int mMaximum = model()->loadedContentMax();

    // the maximum will be at least the minimum
    if (minimum > mMaximum) {
        mMaximum = minimum;
        model()->setLoadedContentMax(mMaximum);
    }

    if (minimum != mMinimum) {
        mMinimum = minimum;
        model()->setLoadedContentMin(mMinimum);
    }

    if ((model()->value() < model()->loadedContentMin()) ||
            (model()->value() > model()->loadedContentMax()))
        emit outOfLoadedContentRange();
}

// Sets the maximum of the active area. Does not have to depend on actual range.
void MSeekBar::setLoadedContentMaximum(int maximum)
{
    int mMinimum = model()->loadedContentMin();
    int mMaximum = model()->loadedContentMax();

    // the minimum will be at most the minimum
    if (maximum < mMinimum) {
        mMinimum = maximum;
        model()->setLoadedContentMin(mMinimum);
    }

    if (maximum != mMaximum) {
        mMaximum = maximum;
        model()->setLoadedContentMax(mMaximum);
    }

    if ((model()->value() < model()->loadedContentMin()) ||
            (model()->value() > model()->loadedContentMax()))
        emit outOfLoadedContentRange();
}

void MSeekBar::setLoadedContentRange(int minimum, int maximum)
{
    setLoadedContentMaximum(maximum);
    // If maximum < minimum, both will be set to minimum
    setLoadedContentMinimum(minimum);

    if ((model()->value() < model()->loadedContentMin()) ||
            (model()->value() > model()->loadedContentMax()))
        emit outOfLoadedContentRange();
}

void MSeekBar::setValue(int value)
{
    MSlider::setValue(value);

    if ((value < model()->loadedContentMin()) ||
            (value > model()->loadedContentMax()))
        emit outOfLoadedContentRange();
}

int MSeekBar::loadedContentMinimum() const
{
    return model()->loadedContentMin();
}

int MSeekBar::loadedContentMaximum() const
{
    return model()->loadedContentMax();
}