public void moveRight()
{
BoxDrawing selectedBox = getSelectedBox();
if (selectedBox == null)
{
logs.Add("Selected Box is null");
return;
}
double left = selectedBox.left;
double right = selectedBox.getRight();
double width = window.canvas.Width;
if (Double.IsNaN(left) || Double.IsNaN(right) || Double.IsNaN(width))
{
logs.Add("Could not move right");
return;
}
// check if we've hit the right side of the screen
if (right >= width)
{
return;
}
selectedBox.left++;
boxes[selected] = selectedBox;
}
// check intersection, adjacency and containment
private bool intersection()
{
bool result = false;
if (boxes.Count < 2)
{
logs.Add("Not enough objects.");
return(false);
}
BoxDrawing selectedBox = getSelectedBox();
BoxDrawing staticBox = getStaticBox();
if (selectedBox == null || staticBox == null)
{
logs.Add("Could not retrieve boxes.");
return(false);
}
double t1 = selectedBox.top;
double t2 = staticBox.top;
double l1 = selectedBox.left;
double l2 = staticBox.left;
double r1 = selectedBox.getRight();
double r2 = staticBox.getRight();
double b1 = selectedBox.getBottom();
double b2 = staticBox.getBottom();
if (Double.IsNaN(t1) || Double.IsNaN(t2) || Double.IsNaN(l1) || Double.IsNaN(l2) ||
Double.IsNaN(r1) || Double.IsNaN(r2) || Double.IsNaN(b1) || Double.IsNaN(b2))
{
logs.Add("Could not calculate intersection");
return(false);
}
if (!(l2 > r1 || r2 < l1 || t2 > b1 || b2 < t1))
{
result = true;
}
return(result);
}
private bool adjacency()
{
bool result = false;
if (boxes.Count < 2)
{
logs.Add("There aren't enough boxes to compute adjacency");
return(false);
}
BoxDrawing selectedBox = getSelectedBox();
BoxDrawing staticBox = getStaticBox();
if (selectedBox == null || staticBox == null)
{
logs.Add("Could not get boxes for computing adjacency");
return(false);
}
double hDiff1 = selectedBox.top - staticBox.getBottom();
double hDiff2 = staticBox.top - selectedBox.getBottom();
double wDiff1 = selectedBox.left - staticBox.getRight();
double wDiff2 = staticBox.left - selectedBox.getRight();
if (Double.IsNaN(hDiff1) || Double.IsNaN(hDiff2) || Double.IsNaN(wDiff1) || Double.IsNaN(wDiff2))
{
logs.Add("Could not compute adjacency");
return(false);
}
if ((hDiff1 > -1 && hDiff1 < 2 && hDiff2 < 0 && wDiff1 < 1 && wDiff2 < 1) ||
(hDiff2 > -1 && hDiff2 < 2 && hDiff1 < 0 && wDiff1 < 1 && wDiff2 < 1) ||
(wDiff1 > -1 && wDiff1 < 2 && wDiff2 < 0 && hDiff1 < 1 && hDiff2 < 1) ||
(wDiff2 > -1 && wDiff2 < 2 && wDiff1 < 0 && hDiff1 < 1 && hDiff2 < 1))
{
result = true;
}
return(result);
}
private bool containment()
{
bool result = false;
if (boxes.Count < 2)
{
logs.Add("Not enough objects.");
return(false);
}
BoxDrawing selectedBox = getSelectedBox();
BoxDrawing staticBox = getStaticBox();
if (selectedBox == null || staticBox == null)
{
logs.Add("Could not retrieve boxes.");
return(false);
}
double tDiff = selectedBox.top - staticBox.top;
double bDiff = staticBox.getBottom() - selectedBox.getBottom();
double lDiff = selectedBox.left - staticBox.left;
double rDiff = staticBox.getRight() - selectedBox.getRight();
if (Double.IsNaN(tDiff) || Double.IsNaN(bDiff) || Double.IsNaN(lDiff) || Double.IsNaN(rDiff))
{
logs.Add("Could not calculate containment");
return(false);
}
if ((tDiff > -1 && bDiff > -1 && lDiff > -1 && rDiff > -1) ||
(tDiff < 1 && bDiff < 1 && lDiff < 1 && rDiff < 1))
{
result = true;
}
return(result);
}