private static object CoerceCursorHeight(DependencyObject d, object value)
{
TiledImageControl tic = (TiledImageControl)d;
int cursorHeight = (int)value;
if (cursorHeight < 0)
{
cursorHeight = 0;
}
if (cursorHeight > (tic.Source?.PixelHeight ?? 0))
{
cursorHeight = tic.Source?.PixelHeight ?? 0;
}
return(cursorHeight);
}
private static object CoerceCursorWidth(DependencyObject d, object value)
{
TiledImageControl tic = (TiledImageControl)d;
int cursorWidth = (int)value;
if (cursorWidth < 0)
{
cursorWidth = 0;
}
if (cursorWidth > (tic.Source?.PixelWidth ?? 0))
{
cursorWidth = tic.Source?.PixelWidth ?? 0;
}
return(cursorWidth);
}
private static object CoerceCursorY(DependencyObject d, object value)
{
TiledImageControl tic = (TiledImageControl)d;
int cursorY = (int)value;
if (cursorY < 0)
{
cursorY = 0;
}
int div = tic.CursorHeight > 0 ? (tic.Source?.PixelHeight ?? 0) / tic.CursorHeight : 0;
if ((cursorY + 1) * tic.CursorHeight >= (tic.Source?.PixelHeight ?? 0))
{
cursorY = div - 1; // Maximum CursorY can be
}
return(cursorY);
}
private static object CoerceCursorX(DependencyObject d, object value)
{
TiledImageControl tic = (TiledImageControl)d;
int cursorX = (int)value;
if (cursorX < 0)
{
cursorX = 0;
}
int div = tic.CursorWidth > 0 ? (tic.Source?.PixelWidth ?? 0) / tic.CursorWidth : 0;
if ((cursorX + 1) * tic.CursorWidth >= (tic.Source?.PixelWidth ?? 0))
{
cursorX = div - 1; // Maximum CursorX can be
}
return(cursorX);
}