/// <summary>
/// create BeamSystemParam's subclass according to LayoutMethod
/// </summary>
/// <param name="layoutType">LayoutMethod</param>
/// <returns>created BeamSystemParam's subclass</returns>
public static BeamSystemParam CreateInstance(LayoutMethod layoutType)
{
BeamSystemParam param = null;
switch (layoutType)
{
case LayoutMethod.ClearSpacing:
param = new ClearSpacingParam();
break;
case LayoutMethod.FixedDistance:
param = new FixedDistanceParam();
break;
case LayoutMethod.FixedNumber:
param = new FixedNumberParam();
break;
case LayoutMethod.MaximumSpacing:
param = new MaximumSpacingParam();
break;
default:
break;
}
// it is absolutely impossible unless layoutType is wrong
Debug.Assert(null != param);
return(param);
}
/// <summary>
/// clone BeamSystemParam to one of its subclass according to LayoutMethod
/// </summary>
/// <param name="layoutType">LayoutMethod</param>
/// <returns>cloned BeamSystemParam's subclass</returns>
public BeamSystemParam CloneInstance(LayoutMethod layoutType)
{
// create a BeamSystemParam instance and set its properties
BeamSystemParam param = CreateInstance(layoutType);
param.m_fixedSpacing = m_fixedSpacing;
param.m_justifyType = m_justifyType;
param.m_numberOfLines = m_numberOfLines;
param.m_beamType = m_beamType;
return param;
}
/// <summary>
/// layout rule of beam system has changed
/// </summary>
/// <param name="layoutMethod">changed method</param>
private void LayoutRuleChanged(ref LayoutMethod layoutMethod)
{
// create BeamSystemParams instance according to changed LayoutMethod
m_param = m_param.CloneInstance(layoutMethod);
// raise DataUpdated event
OnParamsUpdated(new EventArgs());
// rebind delegate
m_param.LayoutRuleChanged += new LayoutRuleChangedHandler(LayoutRuleChanged);
}
/// <summary>
/// constructor
/// if precondition in current Revit project isn't enough,
/// ErrorMessageException will be throw out
/// </summary>
/// <param name="commandData">data from Revit</param>
public BeamSystemData(ExternalCommandData commandData)
{
// initialize members
m_commandData = commandData;
PrepareData();
InitializeProfile(m_beams);
m_param = BeamSystemParam.CreateInstance(LayoutMethod.ClearSpacing);
List <FamilySymbol> beamTypes = new List <FamilySymbol>(m_beamTypes.Values);
m_param.BeamType = beamTypes[0];
m_param.LayoutRuleChanged += new LayoutRuleChangedHandler(LayoutRuleChanged);
}
/// <summary>
/// constructor
/// if precondition in current Revit project isn't enough,
/// ErrorMessageException will be throw out
/// </summary>
/// <param name="commandData">data from Revit</param>
public BeamSystemData(ExternalCommandData commandData)
{
// initialize members
m_commandData = commandData;
PrepareData();
InitializeProfile(m_beams);
m_param = BeamSystemParam.CreateInstance(LayoutMethod.ClearSpacing);
List<FamilySymbol> beamTypes = new List<FamilySymbol>(m_beamTypes.Values);
m_param.BeamType = beamTypes[0];
m_param.LayoutRuleChanged += new LayoutRuleChangedHandler(LayoutRuleChanged);
}
/// <summary>
/// layout rule of beam system has changed
/// </summary>
/// <param name="layoutMethod">changed method</param>
private void LayoutRuleChanged(ref LayoutMethod layoutMethod)
{
// create BeamSystemParams instance according to changed LayoutMethod
m_param = m_param.CloneInstance(layoutMethod);
// raise DataUpdated event
OnParamsUpdated(new EventArgs());
// rebind delegate
m_param.LayoutRuleChanged += new LayoutRuleChangedHandler(LayoutRuleChanged);
}