private void LoadPixels()
{
if (mCharBuf == null)
{
throw new EhllapiExcp("LoadPixels failed. PresentationSpace buffer is empty.");
}
mPixels = new LinkedList <PresentationSpacePixel>();
DisplayLocation loc = new DisplayLocation(1, 1);
// loop for every character in the character buffer.
for (int ix = 0; ix < mCharBuf.Length; ix = ix + mPixelSx)
{
// create a pixel from the char and color byte buffers.
PresentationSpacePixel pixel = null;
if (mPixelSx == 2)
{
pixel =
new PresentationSpacePixel(
mCharBuf[ix],
new CharAttrByte(mCharBuf[ix + 1]),
new ColorAttrByte(mColorBuf[ix + 1]));
}
else
{
pixel = new PresentationSpacePixel(mCharBuf[ix]);
}
pixel.DisplayLocation = loc;
mPixels.AddLast(pixel);
// advance to the next display location in the presentation space.
loc = Dim.IncDisplayLocation(loc);
}
}
public PresentationSpaceField(
out LinkedListNode <PresentationSpacePixel> OutEndPixelNode,
PresentationSpace InPs,
LinkedListNode <PresentationSpacePixel> InPixelNode)
{
PresentationSpacePixel pixel = InPixelNode.Value;
mPs = InPs;
mLocation = pixel.DisplayLocation;
this.FieldAttribute = new FieldAttribute(pixel.Byte1);
// store the character attributes found in the first character pixel.
if (pixel.CharAttrByte != null)
{
mCharAttrByte = pixel.CharAttrByte;
}
// length runs from pixel after the attribute pixel to the next
// attribute pixel.
mLength = 0;
StringBuilder sb = new StringBuilder();
LinkedListNode <PresentationSpacePixel> node = InPixelNode;
LinkedListNode <PresentationSpacePixel> endNode = InPixelNode;
while (true)
{
node = node.Next;
if (node == null)
{
break;
}
pixel = node.Value;
if (pixel.IsFieldAttribute == true)
{
break;
}
endNode = node;
++mLength;
sb.Append(pixel.CharValue);
if (sb.Length == 1)
{
if (pixel.ColorAttrByte != null)
{
mColorAttrByte = pixel.ColorAttrByte;
}
}
}
mText = sb.ToString( );
OutEndPixelNode = endNode;
}