private void UpdateParagraphItemization(int firstParagraphToItemize)
{
currentLayoutRightToLeft = desiredLayoutRightToLeft;
// Remove cached script paragraphs. They will be reitemized on demand.
scriptParagraphCache.RemoveScriptParagraphsStartingFrom(firstParagraphToItemize);
// Create embedded object hosts.
Paragraph* paragraphZero = document.GetParagraphZero();
Paragraph* startParagraph = paragraphZero + firstParagraphToItemize;
Paragraph* endParagraph = paragraphZero + document.ParagraphCount;
Run* runZero = document.GetRunZero();
for (Paragraph* paragraph = startParagraph; paragraph != endParagraph; paragraph++)
{
Run* startRun = runZero + paragraph->RunIndex;
Run* endRun = startRun + paragraph->RunCount;
int charIndex = paragraph->CharIndex;
for (Run* run = startRun; run != endRun; run++)
{
switch (run->RunKind)
{
case RunKind.Object:
{
EmbeddedObjectHost embeddedObjectHost;
if (!embeddedObjectHosts.TryGetValue(charIndex, out embeddedObjectHost))
{
EmbeddedObject embeddedObject = document.LookupObject(run->ObjectIndex);
embeddedObjectHost = new EmbeddedObjectHost(embeddedObject, charIndex,
parentControl,
document.LookupStyle(startRun->StyleIndex),
document.LookupStyle(run->StyleIndex));
embeddedObjectHosts.Add(charIndex, embeddedObjectHost);
pendingEmbeddedObjectHostsToCreate.Enqueue(embeddedObjectHost);
}
break;
}
default:
break;
}
charIndex += run->CharCount;
}
}
}
private Rectangle GetDrawingBoundsOfEmbeddedObject(EmbeddedObjectHost embeddedObjectHost, Point layoutOrigin)
{
Rectangle embeddedObjectHostLayoutBounds = embeddedObjectHost.LayoutBounds;
int x = currentLayoutRightToLeft
? currentLayoutWidth - embeddedObjectHostLayoutBounds.Right + layoutOrigin.X
: embeddedObjectHostLayoutBounds.X + layoutOrigin.X;
int y = embeddedObjectHostLayoutBounds.Y + layoutOrigin.Y;
return new Rectangle(x, y, embeddedObjectHostLayoutBounds.Width, embeddedObjectHostLayoutBounds.Height);
}
