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#include <lib/gdi/erect.h>
#include <lib/base/eerror.h>
/*****************************************************************************
eRect member functions
*****************************************************************************/
eRect::eRect( const ePoint &topLeft, const ePoint &bottomRight )
{
x1 = topLeft.x();
y1 = topLeft.y();
x2 = bottomRight.x();
y2 = bottomRight.y();
}
eRect eRect::normalize() const
{
eRect r;
if ( x2 < x1 ) { // swap bad x values
r.x1 = x2;
r.x2 = x1;
} else {
r.x1 = x1;
r.x2 = x2;
}
if ( y2 < y1 ) { // swap bad y values
r.y1 = y2;
r.y2 = y1;
} else {
r.y1 = y1;
r.y2 = y2;
}
return r;
}
void eRect::rect( int *x, int *y, int *w, int *h ) const
{
*x = x1;
*y = y1;
*w = x2-x1;
*h = y2-y1;
}
void eRect::coords( int *xp1, int *yp1, int *xp2, int *yp2 ) const
{
*xp1 = x1;
*yp1 = y1;
*xp2 = x2;
*yp2 = y2;
}
void eRect::moveTopLeft( const ePoint &p )
{
x2 += (p.x() - x1);
y2 += (p.y() - y1);
x1 = p.x();
y1 = p.y();
}
void eRect::moveBottomRight( const ePoint &p )
{
x1 += (p.x() - x2);
y1 += (p.y() - y2);
x2 = p.x();
y2 = p.y();
}
void eRect::moveTopRight( const ePoint &p )
{
x1 += (p.x() - x2);
y2 += (p.y() - y1);
x2 = p.x();
y1 = p.y();
}
void eRect::moveBottomLeft( const ePoint &p )
{
x2 += (p.x() - x1);
y1 += (p.y() - y2);
x1 = p.x();
y2 = p.y();
}
void eRect::moveCenter( const ePoint &p )
{
int w = x2 - x1;
int h = y2 - y1;
x1 = (p.x() - w/2);
y1 = (p.y() - h/2);
x2 = x1 + w;
y2 = y1 + h;
}
void eRect::setRect( int x, int y, int w, int h )
{
x1 = x;
y1 = y;
x2 = (x+w);
y2 = (y+h);
}
void eRect::setCoords( int xp1, int yp1, int xp2, int yp2 )
{
x1 = xp1;
y1 = yp1;
x2 = xp2;
y2 = yp2;
}
void eRect::setWidth( int w )
{
x2 = x1 + w;
}
void eRect::setHeight( int h )
{
y2 = y1 + h;
}
void eRect::setSize( const eSize &s )
{
x2 = s.width() +x1;
y2 = s.height()+y1;
}
bool eRect::contains( const ePoint &p) const
{
return p.x() >= x1 && p.x() < x2 &&
p.y() >= y1 && p.y() < y2;
}
bool eRect::contains( const eRect &r) const
{
return r.x1 >= x1 &&
r.x2 <= x2 &&
r.y1 >= y1 &&
r.y2 <= y2;
}
eRect& eRect::operator|=(const eRect &r)
{
*this = *this | r;
return *this;
}
eRect& eRect::operator&=(const eRect &r)
{
*this = *this & r;
return *this;
}
eRect eRect::operator|(const eRect &r) const
{
if ( valid() ) {
if ( r.valid() ) {
eRect tmp;
tmp.setLeft( MIN( x1, r.x1 ) );
tmp.setRight( MAX( x2, r.x2 ) );
tmp.setTop( MIN( y1, r.y1 ) );
tmp.setBottom( MAX( y2, r.y2 ) );
return tmp;
} else {
return *this;
}
} else {
return r;
}
}
eRect eRect::unite( const eRect &r ) const
{
return *this | r;
}
eRect eRect::operator&( const eRect &r ) const
{
eRect tmp;
tmp.x1 = MAX( x1, r.x1 );
tmp.x2 = MIN( x2, r.x2 );
tmp.y1 = MAX( y1, r.y1 );
tmp.y2 = MIN( y2, r.y2 );
return tmp;
}
eRect eRect::intersect( const eRect &r ) const
{
return *this & r;
}
bool eRect::intersects( const eRect &r ) const
{
return ( MAX( x1, r.x1 ) < MIN( x2, r.x2 ) &&
MAX( y1, r.y1 ) < MIN( y2, r.y2 ) );
}
bool operator==( const eRect &r1, const eRect &r2 )
{
return r1.x1==r2.x1 && r1.x2==r2.x2 && r1.y1==r2.y1 && r1.y2==r2.y2;
}
bool operator!=( const eRect &r1, const eRect &r2 )
{
return r1.x1!=r2.x1 || r1.x2!=r2.x2 || r1.y1!=r2.y1 || r1.y2!=r2.y2;
}
void eRect::scale(int x_n, int x_d, int y_n, int y_d)
{
ASSERT(x_d); ASSERT(y_d);
x1 *= x_n; x1 /= x_d;
x2 *= x_n; x2 /= x_d;
y1 *= y_n; y1 /= y_d;
y2 *= y_n; y2 /= y_d;
}
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