/// <summary>
/// Paints the annotation object on the specified graphics.
/// </summary>
/// <param name="graphics">
/// A <see cref="ChartGraphics"/>
/// </param>
/// <param name="chart">
/// Reference to the <see cref="ChartService"/> control that owns the annotation.
/// </param>
override internal void Paint(ChartService chart, ChartGraphics graphics)
{
// Get annotation position in relative coordinates
GetRelativePosition(out SKPoint firstPoint, out SKSize size, out _);
SKPoint secondPoint = new(firstPoint.X + size.Width, firstPoint.Y + size.Height);
// Create selection rectangle
SKRect selectionRect = new(firstPoint.X, firstPoint.Y, secondPoint.X, secondPoint.Y);
// Get text position
SKRect rectanglePosition = new(selectionRect.Left, selectionRect.Top, selectionRect.Right, selectionRect.Bottom);
if (rectanglePosition.Width < 0 || rectanglePosition.Height < 0)
{
rectanglePosition = rectanglePosition.Standardized;
}
// Check if position is valid
if (float.IsNaN(rectanglePosition.Left) ||
float.IsNaN(rectanglePosition.Top) ||
float.IsNaN(rectanglePosition.Right) ||
float.IsNaN(rectanglePosition.Bottom))
{
return;
}
if (Common.ProcessModePaint)
{
// Do not draw border if size is less that 10 pixels
SKRect absRectanglePosition = graphics.GetAbsoluteRectangle(rectanglePosition);
if (absRectanglePosition.Width > 30f &&
absRectanglePosition.Height > 30f)
{
// Draw rectangle
graphics.Draw3DBorderRel(
_borderSkin,
rectanglePosition,
BackColor,
BackHatchStyle,
String.Empty,
ChartImageWrapMode.Scaled,
SKColor.Empty,
ChartImageAlignmentStyle.Center,
BackGradientStyle,
BackSecondaryColor,
LineColor,
LineWidth,
LineDashStyle);
}
}
// Call base class to paint text, selection handles and process hot regions
base.Paint(chart, graphics);
}