uilayout.h

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#pragma once

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        A.H. Lammertink
 Date:          03/03/2000
________________________________________________________________________

-*/
#include "uibasemod.h"
#include "gendefs.h"

class i_LayoutItem;

enum constraintType 
{ 
    leftOf, rightOf, 
    leftTo, rightTo, 
    leftAlignedBelow, leftAlignedAbove,
    rightAlignedBelow, rightAlignedAbove,
    alignedWith, alignedBelow, alignedAbove,    
    centeredBelow, centeredAbove,       
    centeredLeftOf, centeredRightOf,    
    ensureLeftOf, ensureRightOf,
    ensureBelow,
    leftBorder, rightBorder, topBorder, bottomBorder,
    hCentered,                          
    heightSameAs, widthSameAs,
    stretchedBelow, stretchedAbove,   
    stretchedLeftTo, stretchedRightTo, 
    atSamePosition
};


mExpClass(uiBase) uiConstraint
{
friend class i_LayoutItem;
public:
                        uiConstraint(constraintType,i_LayoutItem* o,int marg);

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

    bool                enabled() const;
    void                disable(bool yn);

protected:
    constraintType      type_;
    i_LayoutItem*       other_;
    int                 margin_;
    bool                enabled_;
};