/////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) 2011-2012 Statoil ASA, Ceetron AS
//
//  ResInsight 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 3 of the License, or
//  (at your option) any later version.
//
//  ResInsight 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 at <http://www.gnu.org/licenses/gpl.html>
//  for more details.
//
/////////////////////////////////////////////////////////////////////////////////

#include "RiuCursors.h"

#include <QBitmap>
#include <QtCore/QString>

//==================================================================================================
///
///
///
///
//==================================================================================================

//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
RiuCursors::RiuCursors()
{
    m_cursors[FILTER_BOX] = cursorFromFile( ":/Cursors/curFilterBox.bmp", 10, 10 );
    m_cursors[NORMAL]     = cursorFromFile( ":/Cursors/curNormal.bmp", 10, 10 );
    m_cursors[PAN]        = cursorFromFile( ":/Cursors/curPan.bmp" );
    m_cursors[WALK]       = cursorFromFile( ":/Cursors/curWalk.bmp" );
    m_cursors[ZOOM]       = cursorFromFile( ":/Cursors/curZoom.bmp" );
    m_cursors[ROTATE]     = cursorFromFile( ":/Cursors/curRotate.bmp" );

    m_cursors[PICK]          = cursorFromFile( ":/Cursors/curPick.bmp", 10, 10 );
    m_cursors[PICK_ROTPOINT] = cursorFromFile( ":/Cursors/curPickRotPoint.bmp", 10, 10 );
    m_cursors[PICK_GOTO]     = cursorFromFile( ":/Cursors/curPickGoto.bmp", 10, 10 );
}

//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
QCursor RiuCursors::get( CursorIndex cursorIdx )
{
    // Create our single instance in a local static variable
    static RiuCursors myStaticInstance;

    return myStaticInstance.m_cursors[cursorIdx];
}

//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
QCursor RiuCursors::cursorFromFile( const QString& fileName, int hotspotX, int hotspotY )
{
    QImage image( fileName );
    if ( image.width() == 0 || image.height() == 0 )
    {
        return QCursor();
    }

    // QRgb maskClr = image.pixel(0, 0);
    // QImage imgMask = image.createMaskFromColor(maskClr, Qt::MaskInColor);
    QImage imgMask = image.createHeuristicMask( true );

    QBitmap bmMask = QBitmap::fromImage( imgMask, Qt::ThresholdDither | Qt::AvoidDither );

    QBitmap bitmap = QBitmap::fromImage( image, Qt::ThresholdDither | Qt::AvoidDither );

    return QCursor( bitmap, bmMask, hotspotX, hotspotY );
}