/// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
/// <summary>
/// Performs the plot Isolation Object actions required based on the current context
/// </summary>
/// <param name="isoPlotBuilder">A GCode Builder object</param>
/// <param name="stateMachine">the gerber plot state machine</param>
/// <param name="errorString">the error string we return on fail</param>
/// <param name="errorValue">the error value we return on fail, z success, nz fail </param>
/// <returns>an enum value indicating what next action to take</returns>
public override GerberLine.PlotActionEnum PerformPlotIsoStep1Action(IsoPlotBuilder isoPlotBuilder, GerberFileStateMachine stateMachine, ref int errorValue, ref string errorString)
{
// one would think that turning off the contouring would be all that was necessary. However
// contours are complex object and sometime we have to finish off the object usually this
// means fill the existing contour object .
if ((stateMachine.ContourDrawingModeEnabled == true) && (stateMachine.ComplexObjectList_DCode.Count != 0))
{
// process the complex object by drawing in the background
// Get the bounding box
Rectangle boundingRect = stateMachine.GetBoundingRectangleFromComplexObjectList_DCode();
// get a list of builderIDs in the complex object list
List <int> builderIDList = stateMachine.GetListOfIsoPlotBuilderIDsFromComplexObjectList_DCode();
if (builderIDList.Count > 0)
{
if (stateMachine.BackgroundFillModeAccordingToPolarity == GSFillModeEnum.FillMode_BACKGROUND)
{
// Normal Dark polarity. Just fill it in with a backgroundpixel
isoPlotBuilder.BackgroundFillGSRegionComplex(builderIDList, builderIDList[0], boundingRect.X, boundingRect.Y, boundingRect.X + boundingRect.Width, boundingRect.Y + boundingRect.Height, -1);
}
else if (stateMachine.BackgroundFillModeAccordingToPolarity == GSFillModeEnum.FillMode_ERASE)
{
// we have reverse polarity. The object we just drew must be cleaned out and everything underneath it removed
isoPlotBuilder.BackgroundFillGSByBoundaryComplexVert(builderIDList, IsoPlotObject.DEFAULT_ISOPLOTOBJECT_ID, boundingRect.X, boundingRect.Y, boundingRect.X + boundingRect.Width, boundingRect.Y + boundingRect.Height, -1);
}
}
}
// reset, we have processed the complex list
stateMachine.ComplexObjectList_DCode = new List <GerberLine_DCode>();
// disable contour drawing mode
stateMachine.ContourDrawingModeEnabled = false;
return(GerberLine.PlotActionEnum.PlotAction_Continue);
}
