/// <summary>
/// Adds a log message about mouse event.
/// </summary>
/// <param name="annotationView">The annotation view.</param>
/// <param name="eventName">The event name.</param>
/// <param name="e">The <see cref="ObjectPropertyChangedEventArgs"/> instance containing the event data.</param>
private void AddMouseEventLogMessage(
AnnotationView annotationView,
string eventName,
MouseEventArgs e)
{
// location in viewer space
PointF locationInViewerSpace = e.Location;
// transformation from annotation space (DIP) to the viewer space
PointFTransform toViewerTransform = annotationView.GetPointTransform(AnnotationViewer, AnnotationViewer.Image);
PointFTransform inverseTransform = toViewerTransform.GetInverseTransform();
// location in annotation space (DIP)
PointF locationInAnnotationSpace = inverseTransform.TransformPoint(locationInViewerSpace);
// location in annotation content space
PointF locationInAnnotationContentSpace;
// matrix from annotation content space to the annotation space (DIP)
using (Matrix fromDipToContentSpace = GdiConverter.Convert(annotationView.GetTransformFromContentToImageSpace()))
{
// DIP space -> annotation content space
fromDipToContentSpace.Invert();
PointF[] points = new PointF[] { locationInAnnotationSpace };
fromDipToContentSpace.TransformPoints(points);
locationInAnnotationContentSpace = points[0];
}
AddLogMessage(string.Format("{0}.{1}: ViewerSpace={2}; ContentSpace={3}",
GetAnnotationInfo(annotationView),
eventName,
locationInViewerSpace,
locationInAnnotationContentSpace));
}
/// <summary>
/// Returns an annotation selection as <see cref="GraphicsPath"/> in annotation content space.
/// </summary>
public override GraphicsPath GetSelectionAsGraphicsPath()
{
GraphicsPath path = new GraphicsPath();
SizeF size = Size;
path.AddRectangle(new RectangleF(-size.Width / 2, -size.Height / 2, size.Width, size.Height));
using (Matrix transform = GdiConverter.Convert(GetTransformFromContentToImageSpace()))
path.Transform(transform);
return(path);
}
