public static XElement ToXElement(this PresentationSpaceField Field, XName Name)
{
if (Field == null)
{
return(new XElement(Name, null));
}
else
{
string fldText = "";
int textLx = 0;
if (Field.Text != null)
{
textLx = Field.Text.Length;
fldText = Field.Text.TrimEnd(new char[] { ' ' });
}
XElement xe = new XElement(Name,
Field.Location.ToXElement("Location"),
new XElement("Text", fldText),
new XElement("Lx", textLx),
Field.FieldAttribute.ToXElement("FldAttr")
);
return(xe);
}
}
public static bool TextContains(
this PresentationSpaceField Field, string Text)
{
if (Field == null)
{
return(false);
}
else if (Field.Text.Contains(Text))
{
return(true);
}
else
{
return(false);
}
}
private void LoadFields()
{
mFields = new LinkedList <PresentationSpaceField>();
LinkedListNode <PresentationSpacePixel> node = Pixels.First;
while (node != null)
{
if (node.Value.IsFieldAttribute == true)
{
LinkedListNode <PresentationSpacePixel> endNode = null;
PresentationSpaceField fld =
new PresentationSpaceField(out endNode, this, node);
mFields.AddLast(fld);
node = endNode; // the end node of this just loaded field.
}
node = node.Next;
}
}
public static PresentationSpaceField PresentationSpaceFieldOrDefault(
this XElement Elem, XNamespace ns, PresentationSpaceField Default = null)
{
if (Elem == null)
{
return(Default);
}
else
{
var loc = Elem.Element(ns + "Location").DisplayLocationOrDefault(ns, null);
var fldText = Elem.Element(ns + "Text").StringOrDefault();
var lx = Elem.Element(ns + "Lx").IntOrDefault(0).Value;
var fldAttr = Elem.Element(ns + "FldAttr").FieldAttributeOrDefault(null);
// pad the text to its original size.
fldText.PadRight(lx, ' ');
return(new PresentationSpaceField(fldAttr, loc, fldText));
}
}
/// <summary>
/// get the DrawContext of a control from its OnRender method.
/// </summary>
/// <param name="DrawContext"></param>
public void DrawText(DrawingContext DrawContext)
{
double emSize = 12;
var formattedText = new FormattedText(
this.Text,
CultureInfo.GetCultureInfo("en-us"),
System.Windows.FlowDirection.LeftToRight,
new Typeface("Lucida Console"),
emSize,
System.Windows.Media.Brushes.Black);
var charSx = PresentationSpaceField.CalcCharSize(emSize);
// advance the fld location past the attribute byte.
var psDim = new PresentationSpaceDim(24, 80);
var loc = psDim.IncDisplayLocation(this.Location);
double y = (loc.Row - 1) * charSx.Height;
double x = (loc.Column - 1) * charSx.Width;
// Draw the formatted text string to the DrawingContext of the control.
DrawContext.DrawText(formattedText, new System.Windows.Point(x, y));
}
