/// <summary>
/// Sets the new rectangle of an object in pixels.
/// </summary>
/// <param name="rect">The new rectangle of an object in pixels.</param>
protected override void SetRect(Rectangle rect)
{
VintasoftImage image = _imageViewer.Image;
if (image != null)
{
// get transform from control to the device independent pixels (DIP)
AffineMatrix matrix = _imageViewer.GetTransformFromControlToDip();
// convert location to the DIP
PointF locationInDip = PointFAffineTransform.TransformPoint(matrix, rect.Location);
if (HideContentOnTransform)
{
// if comment control content is visible
if (!_isCommentControlContentHidden)
{
// hide comment control content
UpdateCommentControlContentVisibility(false);
_isCommentControlContentHidden = true;
}
}
// update comment bounding box
CommentControl.Comment.BoundingBox = new RectangleF(locationInDip, rect.Size);
}
}
/// <summary>
/// Returns center point of image viewer in coordinate space of specified image.
/// </summary>
/// <param name="image">An image.</param>
/// <returns>
/// Center point of image viewer in coordinate space of specified image.
/// </returns>
private PointF GetCenterPoint(VintasoftImage image)
{
// get old visible point
PointF centerPoint = new PointF(ImageViewer.ClientSize.Width / 2.0f, ImageViewer.ClientSize.Height / 2.0f);
// get transform from image space to viewer space
AffineMatrix pointTransfrom = ImageViewer.GetTransformFromControlToImage(image);
// transform the point
return(PointFAffineTransform.TransformPoint(pointTransfrom, centerPoint));
}