mousecursor.h

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#pragma once

/*+
________________________________________________________________________

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

-*/

#include "generalmod.h"
#include "bufstring.h"
#include "ptrman.h"

namespace OD { class RGBImage; }

mExpClass(General) MouseCursor
{
public:
    virtual             ~MouseCursor();
    enum Shape          { Arrow, UpArrow, Cross, Wait, Ibeam,
                          SizeVer, SizeHor, SizeBDiag, SizeFDiag, SizeAll,
                          Blank, SplitV, SplitH, PointingHand, Forbidden,
                          WhatsThis, Busy, OpenHand, ClosedHand,
                          Last = ClosedHand, Bitmap = 24, NotSet,
                          //Custom cursors
                          GreenArrow, Rotator
                        };

                        MouseCursor();
                        MouseCursor( Shape s );

    bool                operator==(const MouseCursor&) const;
    bool                operator!=(const MouseCursor&) const;

    Shape               shape_;

    BufferString        filename_;
    OD::RGBImage*       image_;
    
    int                 hotx_;
    int                 hoty_;
};


mExpClass(General) MouseCursorManager
{
public:

    virtual     ~MouseCursorManager()                                   {}

    static void setOverride(MouseCursor::Shape,bool replace=false);
    static void setOverride(const MouseCursor&,bool replace=false);
    static void setOverride(const char* filenm,int hotx=-1, int hoty=-1,
                            bool replace=false);        
    static void restoreOverride();


    static MouseCursorManager*          mgr();
    static void                         setMgr(MouseCursorManager*);

protected:
    virtual void setOverrideShape(MouseCursor::Shape,bool replace)      = 0;
    virtual void setOverrideCursor(const MouseCursor&,bool replace)     = 0;
    virtual void setOverrideFile(const char* filenm,
                                 int hotx,int hoty, bool replace)       = 0;    
    virtual void restoreInternal()                                      = 0;


    static MouseCursorManager*          mgr_;
};


mExpClass(General) MouseCursorChanger
{
public:
                MouseCursorChanger(const char* fnm, int hotx, int hoty);
                MouseCursorChanger(MouseCursor::Shape cs);
                ~MouseCursorChanger();

    void        restore();

protected:
    bool        active_;
};