/// <summary>
/// The Copy Constructor
/// </summary>
/// <param name="rhs">The <see cref="LineItem"/> object from which to copy</param>
public FilledLineItem(FilledLineItem rhs)
: base(rhs)
{
_symbol = new Symbol(rhs.Symbol);
_line = new FilledLine(rhs.FilledLine);
LowerPoints = rhs.LowerPoints;
}
public override void CloseCurve(GraphPane pane, CurveItem curve, PointF[] arrPoints, int count, double yMin, System.Drawing.Drawing2D.GraphicsPath path)
{
if (pane.LineType == LineType.Stack)
{
throw new NotSupportedException("Filled lines cannot be stacked");
}
FilledLineItem filledCurve = curve as FilledLineItem;
if (filledCurve == null)
{
throw new ArgumentException("Curve was of the wrong type. Expected FilledLineItem but was " + curve.GetType(), "curve");
}
// Build another points array consisting of the low points (It gets these from the LowerPoints property of the curve)
PointF[] arrPoints2;
int count2;
BuildLowPointsArray(pane, curve, out arrPoints2, out count2);
// Add the new points to the GraphicsPath
float tension = _isSmooth ? _smoothTension : 0f;
path.AddCurve(arrPoints2, 0, count2 - 2, tension);
}
/// <summary>
/// Draw this <see cref="CurveItem"/> to the specified <see cref="Graphics"/>
/// device as a symbol at each defined point. The routine
/// only draws the symbols; the lines are draw by the
/// <see cref="Line.DrawCurve"/> method. This method
/// is normally only called by the Draw method of the
/// <see cref="CurveItem"/> object
/// </summary>
/// <param name="g">
/// A graphic device object to be drawn into. This is normally e.Graphics from the
/// PaintEventArgs argument to the Paint() method.
/// </param>
/// <param name="pane">
/// A reference to the <see cref="GraphPane"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="curve">A <see cref="LineItem"/> representing this
/// curve.</param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and
/// passed down by the parent <see cref="GraphPane"/> object using the
/// <see cref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
/// font sizes, etc. according to the actual size of the graph.
/// </param>
/// <param name="isSelected">Indicates that the <see cref="Symbol" /> should be drawn
/// with attributes from the <see cref="Selection" /> class.
/// </param>
public void Draw(IGraphics g, GraphPane pane, LineItem curve, float scaleFactor,
bool isSelected)
{
Symbol source = this;
if (isSelected)
{
source = Selection.Symbol;
}
//int tmpX, tmpY;
int minX = (int)pane.Chart.Rect.Left;
int maxX = (int)pane.Chart.Rect.Right;
int minY = (int)pane.Chart.Rect.Top;
int maxY = (int)pane.Chart.Rect.Bottom;
// (Dale-a-b) we'll set an element to true when it has been drawn
bool[,] isPixelDrawn = new bool[maxX + 1, maxY + 1];
//double curX, curY, lowVal;
DrawPoints(pane, maxX, maxY, curve, curve.Points, g, source, scaleFactor, minX, minY, isPixelDrawn);
// Need to check if this is a "Filled" line item, if it is, it may have lower points, in which case the lower points need to be output as well
FilledLineItem filledLineItem = curve as FilledLineItem;
if (filledLineItem != null)
{
DrawPoints(pane, maxX, maxY, curve, filledLineItem.LowerPoints, g, source, scaleFactor, minX, minY, isPixelDrawn);
}
}
protected override IPointList GetPointsForLowPointsArray(CurveItem curve)
{
FilledLineItem filledCurve = curve as FilledLineItem;
if (filledCurve == null)
{
throw new ArgumentException("Curve was of the wrong type. Expected FilledLineItem but was " + curve.GetType(), "curve");
}
return(filledCurve.LowerPoints);
}
/// <summary>
/// The Copy Constructor
/// </summary>
/// <param name="rhs">The <see cref="LineItem"/> object from which to copy</param>
public FilledLineItem(FilledLineItem rhs)
: base(rhs)
{
_symbol = new Symbol( rhs.Symbol );
_line = new FilledLine( rhs.FilledLine );
LowerPoints = rhs.LowerPoints;
}
