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// DasherViewSquare.inl
//
/////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2001-2002 David Ward
//
/////////////////////////////////////////////////////////////////////////////
namespace Dasher {
inline const void CDasherViewSquare::screen2dasher(int *mousex, int *mousey)
{
int dashery=*mousey;
double x=1.0*(CanvasX-*mousex)/CanvasX;
dashery*=DasherModel().DasherY();
dashery/=CanvasY;
if (DasherModel().Dimensions()==false) {
if (dashery>m_Y2)
dashery= (dashery-m_Y2)*m_Y1 + m_Y2;
else if (dashery<m_Y3)
dashery= (dashery-m_Y3)*m_Y1+m_Y3;
}
x=ixmap(x)*DasherModel().DasherY();
if (DasherModel().Dimensions()==true) {
double distx, disty;
distx=2048-x;
disty=DasherModel().DasherY()/2-dashery;
if (disty>1500) {
dashery=548+(548-dashery);
disty=1298-dashery;
if(disty<-750) {
x=2048;
dashery=2048;
} else {
x=2048+pow(pow(750,2)-pow(disty,2),0.5)*10;
}
*mousex=int(x);
*mousey=dashery;
return;
}
else if (disty <-1500) {
dashery=3548+(3548-dashery);
disty=2798-dashery;
if(disty>750) {
x=2048;
dashery=2048;
} else {
x=2048+pow(pow(750,2)-pow(disty,2),0.5)*10;
}
*mousex=int(x);
*mousey=dashery;
return;
} else {
x=pow(pow(1500,2)-pow(disty,2),0.5);
}
x=2048-x;
}
*mousex=int(x);
*mousey=dashery;
}
inline const int CDasherViewSquare::dasherx2screen(const myint sx)
{
double x=1.0*sx/(DasherModel().DasherY());
x=xmap(x);
// return CanvasX-int(x*CanvasY);
return CanvasX-int(x*CanvasX);
}
inline const int CDasherViewSquare::dashery2screen(myint y)
{
if (y > m_Y2 )
y= m_Y2 + (y-m_Y2)/m_Y1;
else if (y<m_Y3)
y= m_Y3+ (y-m_Y3 )/m_Y1;
// y*=CanvasY*Screen().GetFontSize();
y*=CanvasY;
y/=DasherModel().DasherY();
// y-=(CanvasY*Screen().GetFontSize()-CanvasY)/2;
return int(y);
}
inline void CDasherViewSquare::Crosshair(myint sx)
{
CDasherScreen::point crosshair[2];
crosshair[0].x = dasherx2screen(sx);
crosshair[0].y = 0;
crosshair[1].x = crosshair[0].x;
crosshair[1].y = CanvasY;
MapScreen(&crosshair[0].x, &crosshair[0].y);
MapScreen(&crosshair[1].x, &crosshair[1].y);
Screen().Polyline(crosshair,2);
crosshair[0].x = dasherx2screen(12*sx/14);
crosshair[0].y = CanvasY/2;
crosshair[1].x = dasherx2screen(17*sx/14);
crosshair[1].y = CanvasY/2;
MapScreen(&crosshair[0].x, &crosshair[0].y);
MapScreen(&crosshair[1].x, &crosshair[1].y);
Screen().Polyline(crosshair,2);
}
inline double CDasherViewSquare::ixmap(double x)
// invert x non-linearity
{
if (x<m_dXmpb*m_dXmpc)
return x/m_dXmpc;
else
return m_dXmpb-m_dXmpa + m_dXmpa * exp( (x/m_dXmpc - m_dXmpb) / m_dXmpa);
}
inline double CDasherViewSquare::xmap(double x)
// x non-linearity
{
if (x<m_dXmpb)
return m_dXmpc*x;
else
return m_dXmpc*(m_dXmpa*log((x+m_dXmpa-m_dXmpb)/m_dXmpa) +m_dXmpb);
}
} // namespace Dasher
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