public void CalcRectArea()
{
startTextArea = WhitodoText.TranslatePoint(new Point(0, 0), this);
endTextArea.X = startTextArea.X + WhitodoText.Width;
endTextArea.Y = startTextArea.Y + WhitodoText.Height;
startControlArea = RedButton.TranslatePoint(new Point(0, 0), this);
endControlArea = WhitodoButton.TranslatePoint(new Point(0, 0), this);
endControlArea.X += WhitodoButton.Width;
endControlArea.Y += WhitodoButton.Height;
/* DEBUG INFO
* string x = "startTextArea=" + startTextArea.X.ToString() + "," + startTextArea.Y.ToString();
* x += "\nendTextArea=" + endTextArea.X.ToString() + "," + endTextArea.Y.ToString();
* x += "\nstartControlArea=" + startControlArea.X.ToString() + "," + startControlArea.Y.ToString();
* x += "\nendControlArea=" + endControlArea.X.ToString() + "," + endControlArea.Y.ToString();
* System.Windows.MessageBox.Show(x);
*/
}