/// <summary>
/// Clear the contents
/// </summary>
internal override void Clear()
{
_elements.Clear();
var element = new FreeElement();
element.OnCSUnitsPerPixelChanged(this.CSUnitsPerPixel);
_elements.Add(element);
base.Clear();
}
/// <summary>
/// End the measuring
/// </summary>
internal override void EndMeasuring()
{
base.EndMeasuring();
ActiveCollection.FinalizeElements();
CreateFeatureGeometry();
var element = new FreeElement();
element.OnCSUnitsPerPixelChanged(this.CSUnitsPerPixel);
_elements.Add(element);
}
public bool InitWriteReadList(HandleElement eleHandle, FreeElement eleFree)
{
if (eleHandle == null || eleFree == null)
{
Trace.Assert(false, "InitWriteReadList input param error.");
return(false);
}
elementHandle = eleHandle;
elementFree = eleFree;
visitorGuard = new object();
if (visitorGuard == null)
{
return(false);
}
elementListA = new List <TYPE>();
if (elementListA == null)
{
visitorGuard = null;
return(false);
}
elementListB = new List <TYPE>();
if (elementListB == null)
{
visitorGuard = null;
elementListA = null;
return(false);
}
writeElementList = elementListA;
readElementList = elementListB;
return(true);
}
/// <summary>
/// Closes the measurer
/// </summary>
internal override void CloseMeasurer()
{
if (Coordinates.Count == 0)
{
// No Coordinates; so not drawing; clear everything
Clear();
}
else if (Coordinates.Count <= 2)
{
if (_elements.Count > 1)
{
Coordinates.Clear();
LastCoordinate = null;
LastMouseCoordinate = null;
_elements.RemoveAt(_elements.Count - 1);
var element = new FreeElement();
element.OnCSUnitsPerPixelChanged(this.CSUnitsPerPixel);
_elements.Add(element);
CreateFeatureGeometry();
}
else
{
Clear();
}
}
else
{
ActiveCollection.Close();
EndMeasuring();
Coordinates.Clear();
LastCoordinate = null;
LastMouseCoordinate = null;
}
}
private void SetCapacity(int cap)
{
FreeElement[] new_array = new FreeElement[cap];
Array.Copy(_data, 0, new_array, 0, Capacity);
_data = new_array;
}
