void CRoundRect::DrawRoundRect(CDC *pDC,REAL left,REAL top,REAL right,REAL bottom,REAL fWidth,REAL fHeight)
{
REAL w = right - left;
REAL h = bottom - top;
if ((fWidth<0 && w>0) ||(fWidth>0 && w<0))
fWidth = 0;
else if (abs(fWidth) > abs(w))
fWidth = w;
if ((fHeight<0 && h>0) ||(fHeight>0 && h<0))
fHeight = 0;
else if (abs(fHeight) > abs(h))
fHeight = h;
REAL cx = fWidth/2;
REAL cy = fHeight/2;
if (fWidth==0.0 || fHeight==0.0)
{
DrawRect(pDC,left,top,right,bottom);
}
else
{
exchange_if_less(REAL,right,left);
exchange_if_less(REAL,bottom,top);
absx(cx);absx(cy);
absx(fWidth);absx(fHeight);
pDC->RoundRect((int)left,(int)top,(int)right,(int)bottom,(int)fWidth,(int)fHeight);
}
}
void CRoundRect::DrawRoundRectXY(CDC *pDC,REAL left,REAL top,REAL right,REAL bottom,REAL fXEllipse,REAL fYEllipse)
{
if (CRectF(left,top,right,bottom).IsRectEmpty())
return;
REAL w = right - left;
REAL h = bottom - top;
REAL fWidth = (REAL)(fXEllipse*w);
REAL fHeight = (REAL)(fYEllipse*h);
if ((fWidth<0 && w>0) ||(fWidth>0 && w<0))
fWidth = 0;
else if (abs(fWidth) > abs(w))
fWidth = w;
if ((fHeight<0 && h>0) ||(fHeight>0 && h<0))
fHeight = 0;
else if (abs(fHeight) > abs(h))
fHeight = h;
if (fWidth==0.0 || fHeight==0.0)
{
DrawRect(pDC,left,top,right,bottom);
}
else
{
exchange_if_less(REAL,right,left);
exchange_if_less(REAL,bottom,top);
absx(fWidth);absx(fHeight);
pDC->RoundRect((int)left,(int)top,(int)right,(int)bottom,(int)fWidth,(int)fHeight);
}
}
static
fixed iLog2( fixed p_Base )
{
fixed w = 0;
fixed y = 0;
fixed z = 0;
int num = 1;
int dec = 0;
if( p_Base == 1 )
return 0;
for( dec=0 ; absx( p_Base ) >= 2 ; ++dec )
p_Base /= XLN_E;
p_Base -= 1;
z = p_Base;
y = p_Base;
w = 1;
while( y != y + w )
y += ( w = ( z = 0 - ( z * p_Base ) ) / ( num += 1 ) );
return y + dec;
}
static
fixed ipow( fixed p_Base, fixed p_Power )
{
if( p_Base < 0 && p_Power%2 != 0 )
return - iExp2( (p_Power * iLog2( -p_Base )) );
else
return iExp2( (p_Power * iLog2(absx( p_Base ))) );
}
int gAction::xToFrame_b() {
return (absx() + w()) * parent->zoom;
}