uigeom.h

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#ifndef uigeom_h
#define uigeom_h

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        A.H. Lammertink
 Date:          01/02/2000
 RCS:           $Id$
________________________________________________________________________

-*/

#include "uibasemod.h"
#include "oduicommon.h"
#include "geometry.h"
#include "enums.h"

typedef Geom::Point2D<int> uiPoint;
typedef Geom::Point2D<double> uiWorldPoint;
typedef Geom::PosRectangle<double> uiWorldRect;


mExpClass(uiBase) uiSize : public Geom::Size2D<int>
{
public:
                        uiSize( const Geom::Size2D<int>& a )
                            :  Geom::Size2D<int>( a )                   {}
                        uiSize( int wdt=0 , int hgt=0 )
                            : Geom::Size2D<int>(wdt,hgt)                {}

    inline int          hNrPics() const         { return width_; }
    inline int          vNrPics() const         { return height_; }
    inline void         setHNrPics( int np )    { width_ = mMAX(np,1); }
    inline void         setVNrPics( int np )    { height_ = mMAX(np,1); }
};


mExpClass(uiBase) uiRect  : public Geom::PixRectangle<int>
{
public:

    enum Side           { Left, Right, Top, Bottom };
                        mDeclareEnumUtils(Side)
    static inline bool  isHor( Side s )                 { return s > Right; }
    static uiRect::Side across(uiRect::Side);
    static uiRect::Side clockWise(uiRect::Side);

    inline              uiRect( int l = 0 , int t = 0, int r = 0 , int b = 0 );
    inline              uiRect( const uiPoint& tl, const uiPoint& br );
    inline              uiRect( const uiPoint& tl, const uiSize& sz );
    inline              uiRect( const Geom::PixRectangle<int>& );
    inline uiSize       getPixelSize() const;

    inline uiRect       selectArea( const uiRect& other ) const;
    inline bool         topToAtLeast( int ref );
    inline void         topTo( int ref );
    inline bool         bottomToAtLeast( int ref );
    inline void         bottomTo( int ref );
    inline bool         leftToAtLeast( int ref );
    inline void         leftTo( int ref );
    inline void         rightTo( int ref );
    inline bool         rightToAtLeast( int ref );
    inline void         expandTo( const uiRect& oth );
    inline int          hNrPics() const;
    inline int          vNrPics() const;
    inline void         setHNrPics( int np );
    inline void         setVNrPics( int np );

    int                 get(Side) const;
    void                set(Side,int);
};


mExpClass(uiBase) uiBorder
{
public:
                        uiBorder( int i=0 )     : lt_(i,i), rb_(i,i)    {}
                        uiBorder( int l, int t, int r, int b )
                                : lt_(l,t), rb_(r,b)    {}
    bool                operator ==( const uiBorder& b ) const
                        { return lt_ == b.lt_ && rb_ == b.rb_; }
    bool                operator !=( const uiBorder& b ) const
                        { return !(*this == b); }

    int                 left() const            { return lt_.width(); }
    int                 right() const           { return rb_.width(); }
    int                 top() const             { return lt_.height(); }
    int                 bottom() const          { return rb_.height(); }
    void                setLeft( int i )        { lt_.setWidth(i); }
    void                setRight( int i )       { rb_.setWidth(i); }
    void                setTop( int i )         { lt_.setHeight(i); }
    void                setBottom( int i )      { rb_.setHeight(i); }
    int                 get(uiRect::Side) const;
    void                set(uiRect::Side,int);

    uiSize              lt_;
    uiSize              rb_;

    inline uiPoint      drawPt(const uiPoint& relpt) const;
    inline uiPoint      relPt(const uiPoint& drawpt) const;
    inline uiRect       getRect(const uiSize&,int extrapix=0) const;
    inline uiRect       getRect(const uiRect&,int extrapix=0) const;
    uiBorder&           operator +=( const uiBorder& b )
                        { lt_ += b.lt_; rb_ += b.rb_; return *this; }
};


inline uiRect::uiRect( int l, int t, int r, int b )
    : Geom::PixRectangle<int>( l, t, r, b )
{}


inline uiRect::uiRect( const uiPoint& tl, const uiPoint& br )
    : Geom::PixRectangle<int>( tl, br )
{}


inline uiRect::uiRect( const uiPoint& tl, const uiSize& sz )
    : Geom::PixRectangle<int>( tl, sz )
{}


inline uiRect::uiRect( const Geom::PixRectangle<int>& pr )
    : Geom::PixRectangle<int>( pr )
{}


inline uiSize uiRect::getPixelSize() const
{ return uiSize( hNrPics(),vNrPics() ); }


inline uiRect uiRect::selectArea( const uiRect& other ) const
{
    int hOffset = other.left() - left();
    int vOffset = other.top() - top();
    return uiRect( hOffset, vOffset,
                   other.width(), other.height() );
}


inline bool uiRect::topToAtLeast( int ref )
{
    int shift = ref - top();
    if ( shift > 0 )
    {
        setTop( top() + shift );
        setBottom( bottom() + shift);
        return true;
    }
    return false;
}


inline void uiRect::topTo( int ref )
{
    int shift = ref - top();
    setTop( top() + shift );
    setBottom( bottom() + shift);
}


inline bool uiRect::bottomToAtLeast( int ref )
{
    int shift = ref - bottom();
    if ( shift > 0 )
    {
        setTop( top() + shift );
        setBottom( bottom() + shift);
    }
    return false;
}


inline void uiRect::bottomTo( int ref )
{
    int shift = ref - bottom();
    setTop( top() + shift );
    setBottom( bottom() + shift);
}


inline bool uiRect::leftToAtLeast( int ref )
{
    int shift = ref - left();
    if ( shift > 0 )
    {
        setLeft( left() + shift );
        setRight( right() + shift );
        return true;
    }
    return false;
}

inline void uiRect::leftTo( int ref )
{
    int shift = ref - left();
    setLeft( left() + shift );
    setRight( right() + shift );
}


inline void uiRect::rightTo( int ref )
{
    int shift = ref - right();
    setLeft( left() + shift );
    setRight( right() + shift );
}


inline bool uiRect::rightToAtLeast( int ref )
{
    int shift = ref - right();
    if ( shift > 0 )
    {
        setLeft( left() + shift );
        setRight( right() + shift );
        return true;
    }
    return false;
}


inline void uiRect::expandTo( const uiRect& oth )
{
    sortCorners();
    topleft_.x = mMIN( topleft_.x, oth.topleft_.x );
    topleft_.y = mMIN( topleft_.y, oth.topleft_.y );
    bottomright_.x = mMAX( bottomright_.x,
                           oth.bottomright_.x );
    bottomright_.y = mMAX( bottomright_.y,
                           oth.bottomright_.y );
}


inline int uiRect::hNrPics() const              { return width() + 1; }


inline int uiRect::vNrPics() const              { return height()+ 1; }


inline void uiRect::setHNrPics( int np )
{ setRight( left() + mMAX( 1, np ) - 1 ); }


inline void uiRect::setVNrPics( int np )
{ setBottom( top() + mMAX( 1, np ) - 1 ); }


inline uiRect::Side uiRect::across( uiRect::Side s )
{ return uiRect::isHor(s) ? (s == uiRect::Top ? uiRect::Bottom :uiRect::Top)
                          : (s == uiRect::Left ? uiRect::Right : uiRect::Left); }
inline uiRect::Side uiRect::clockWise( uiRect::Side s )
{ return uiRect::isHor(s) ? (s == uiRect::Top ? uiRect::Left :uiRect::Right)
                          : (s == uiRect::Left ? uiRect::Bottom : uiRect::Top);}

#define mUIGeomImplSideFns(clss) \
inline int clss::get( uiRect::Side s ) const \
{ return uiRect::isHor(s) ? (s == uiRect::Top ?  top()  : bottom()) \
                          : (s == uiRect::Left ? left() : right() ); } \
inline void clss::set( uiRect::Side s, int i ) \
{ uiRect::isHor(s) ? (s == uiRect::Top ? setTop(i) : setBottom(i)) \
                   : (s == uiRect::Left ? setLeft(i) : setRight(i)); }

mUIGeomImplSideFns(uiRect)
mUIGeomImplSideFns(uiBorder)


inline uiPoint uiBorder::drawPt( const uiPoint& relpt ) const
{
    return uiPoint( relpt.x+lt_.width(), relpt.y+lt_.height());
}


inline uiPoint uiBorder::relPt( const uiPoint& dpt ) const
{
    return uiPoint( dpt.x-lt_.width(), dpt.y-lt_.height() );
}


inline uiRect uiBorder::getRect( const uiSize& sz, int extr ) const
{
    return uiRect( lt_.width()+extr, lt_.height()+extr,
                   sz.width()-rb_.width()-2*extr,
                   sz.height()-rb_.height()-2*extr );
}


inline uiRect uiBorder::getRect( const uiRect& rect, int extr ) const
{
    return uiRect( rect.left()+lt_.width()+extr,rect.top()+lt_.height()+extr,
                   rect.right()-rb_.width()-2*extr,
                   rect.bottom()-rb_.height()-2*extr );
}

#define mGoldenRatio 1.618034f

inline int GetGoldenMajor( int inp )
{
    const float val = inp * mGoldenRatio;
    return inp > 0 ? (int)(val+.5f) : (int)(val - .5f);
}

static const float cGoldenRatio = 1.618034f;
inline int GetGoldenMinor( int inp )
{
    const float val = inp / mGoldenRatio;
    return inp > 0 ? (int)(val+.5f) : (int)(val - .5f);
}


#endif