visrgbatexturechannel2rgba.h

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#pragma once

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        K. Tingdahl
 Date:          Oct 2008
________________________________________________________________________


-*/

#include "vistexturechannel2rgba.h"

namespace osgGeo { class RGBALayerProcess; }


namespace visBase
{

mExpClass(visBase) RGBATextureChannel2RGBA : public TextureChannel2RGBA
{
public:
    static RGBATextureChannel2RGBA*     create()
                                mCreateDataObj(RGBATextureChannel2RGBA);

    const ColTab::Sequence&     getSequence(int ch) const;
    void                        getChannelName(int,uiString&) const;

    void                        swapChannels(int ch0,int ch1);

    void                        setEnabled(int ch,bool yn);
    bool                        isEnabled(int ch) const;

    void                        setTransparency(unsigned char);
    unsigned char               getTransparency() const;

    void                        applyUndefPerChannel(bool);
    bool                        isUndefPerChannel() const;

    int                         maxNrChannels() const   { return 4; }
    int                         minNrChannels() const   { return 4; }

protected:

                                ~RGBATextureChannel2RGBA();

    void                        notifyChannelInsert(int ch);

    BoolTypeSet                 enabled_;
    unsigned char               proctransparency_;

    osgGeo::RGBALayerProcess*   proc_;
};


}; //namespace