public int UpdateUI()
{
//return 0;
//Debug.WriteLine("UpdateUI");
if (this.mFullyActive && (this.m_document != null) && (this.container.mDesignMode == true))
{
try
{
HTMLDocument thisdoc = (HTMLDocument)m_document;
//we need IDisplayServices to get the caret position
IDisplayServices ds = (IDisplayServices)thisdoc;
if (ds == null)
{
return(HRESULT.S_OK);
}
IHTMLCaret caret;
int iRetVal = ds.GetCaret(out caret);
if (caret == null)
{
return(HRESULT.S_OK);
}
win32POINT pt = new win32POINT();
caret.GetLocation(out pt, true);
IHTMLDocument2 htmldoc = (IHTMLDocument2)this.m_document;
IHTMLElement el = htmldoc.ElementFromPoint(pt.x, pt.y);
if (el == null)
{
return(HRESULT.S_OK);
}
container.mcurrentElement = el;
container.InvokeUpdateUI(el);
}
catch (Exception e)
{
Debug.WriteLine(e.Message + e.StackTrace);
}
}
//should always return S_OK unless error
return(HRESULT.S_OK);
}
private static Bitmap GetElementPreviewImage(IHTMLDocument3 doc3, IHTMLElement element, int snapshotWidth, int snapshotHeight)
{
try
{
// @RIBBON TODO: Need to make this work for RTL as well.
IDisplayServices displayServices = ((IDisplayServices)doc3);
element.scrollIntoView(true);
tagPOINT offset = new tagPOINT();
offset.x = 0;
offset.y = 0;
displayServices.TransformPoint(ref offset, _COORD_SYSTEM.COORD_SYSTEM_CONTENT, _COORD_SYSTEM.COORD_SYSTEM_GLOBAL, element);
using (Bitmap snapshotAfter = HtmlScreenCaptureCore.TakeSnapshot((IViewObject)doc3, snapshotWidth, snapshotHeight))
{
//snapshotAfter.Save(@"c:\temp\snapshot" + element.id + ".bmp");
Rectangle elementRect;
elementRect = new Rectangle(Math.Max(2, offset.x), 2, Math.Min(element.offsetWidth, element.offsetParent.offsetWidth), element.offsetHeight);
if (element.offsetWidth <= 0 || element.offsetHeight <= 0)
{
return(null);
}
Bitmap cropped = ImageHelper2.CropBitmap(snapshotAfter, elementRect);
//cropped.Save(@"c:\temp\snapshot" + element.id + ".cropped.bmp");
return(cropped);
}
}
catch (Exception ex)
{
Trace.Fail("Failed to get element preview image for id " + element.id + ": " + ex);
return(null);
}
}
