bool NVOverlay::HandlePotentialMapClick(float RawMouseX, float RawMouseY)
{
float FracMouseX, FracMouseY;
FracMouseX = (RawMouseX + 1.0f) * .5f;
FracMouseY = (RawMouseY + 1.0f) * .5f;
if(GetMapOn())
{
// these coords increase towards the right and up
unsigned long int ClickPseudoCoordX, ClickPseudoCoordY;
ClickPseudoCoordX = (unsigned long int)(FracMouseX * (float)NVW_NVOVERLAY_PSEUDO_SCREENSIZE_X);
ClickPseudoCoordY = (unsigned long int)(FracMouseY * (float)NVW_NVOVERLAY_PSEUDO_SCREENSIZE_Y);
if(ClickPseudoCoordX > MapLeft && ClickPseudoCoordX < MapRight && ClickPseudoCoordY > MapBot && ClickPseudoCoordY < MapTop)
{
// translate into image-fraction units
float ImageFracX, ImageFracY;
// these units also increase to the right and up
ImageFracX = ((float)ClickPseudoCoordX - (float)MapLeft) / (float)(MapRight - MapLeft);
ImageFracY = ((float)ClickPseudoCoordY - (float)MapBot) / (float)(MapTop - MapBot);
// figure out the new spatial position represented by these map fractional coordinates
double SpatialX, SpatialY;
SpatialX = ((1.0f - ImageFracX) * MasterScene.GetCoordXRange()) + MasterScene.GetCoordXMin(); // Lon increases to left so must be inverted by 1.0 -
SpatialY = (ImageFracY * MasterScene.GetCoordYRange()) + MasterScene.GetCoordYMin();
PM->JumpTo(SpatialX, SpatialY);
return(true);
} // if
} // if
return(false);
} // NVOverlay::HandlePotentialMapClick
