public AvnDragDropEffects DragEvent(AvnDragEventType type, AvnPoint position,
AvnInputModifiers modifiers,
AvnDragDropEffects effects,
IAvnClipboard clipboard, IntPtr dataObjectHandle)
{
var device = AvaloniaLocator.Current.GetService <IDragDropDevice>();
IDataObject dataObject = null;
if (dataObjectHandle != IntPtr.Zero)
{
dataObject = GCHandle.FromIntPtr(dataObjectHandle).Target as IDataObject;
}
using (var clipboardDataObject = new ClipboardDataObject(clipboard))
{
if (dataObject == null)
{
dataObject = clipboardDataObject;
}
var args = new RawDragEvent(device, (RawDragEventType)type,
_parent._inputRoot, position.ToAvaloniaPoint(), dataObject, (DragDropEffects)effects,
(RawInputModifiers)modifiers);
_parent.Input(args);
return((AvnDragDropEffects)args.Effects);
}
}
public ClipboardEntryLogic(Image ico)
{
_icoAppFrom = (Image)ico.Clone();
ClipboardDataObject = Clipboard.GetDataObject();
_svFormats = ClipboardDataObject.GetFormats(true);
if (_svFormats == null || _svFormats.Length == 0)
{
Thread.Sleep(100);
ClipboardDataObject = Clipboard.GetDataObject();
_svFormats = ClipboardDataObject.GetFormats(true);
}
_desc = "[Clipboard data is not RTF or ASCII Text]";
if (ClipboardDataObject.GetDataPresent(DataFormats.Rtf.ToString())) // Clipboard.ContainsText(TextDataFormat.Rtf) )
{
_dataType = DataFormats.Rtf;
_data = ClipboardDataObject.GetData(DataFormats.Rtf.ToString()); // Clipboard.GetText(TextDataFormat.Rtf);
_icoItemType = 2;
m_RtfBox.Rtf = (string)_data;
_desc = m_RtfBox.Text;
if (_desc.Trim().Length == 0)
{
_desc = "--Rtf Binary--";
}
//if there is 'international' string that cannot be translated
if (_desc.IndexOf("???") >= 0 && ClipboardDataObject.GetDataPresent(DataFormats.UnicodeText.ToString()))
{
UnicodeTextInit(ClipboardDataObject);
}
} //end if
else if (ClipboardDataObject.GetDataPresent(DataFormats.UnicodeText.ToString())) //Clipboard.ContainsText(TextDataFormat.UnicodeText) )
{
UnicodeTextInit(ClipboardDataObject);
} //end else if
else if (ClipboardDataObject.GetDataPresent(DataFormats.Text.ToString())) // Clipboard.ContainsText(TextDataFormat.Text) )
{
_dataType = DataFormats.Text;
_data = ClipboardDataObject.GetData(DataFormats.Text.ToString()); // Clipboard.GetText(TextDataFormat.Text);
_icoItemType = 0;
_desc = (string)_data;
} //end else if
else if (ClipboardDataObject.GetDataPresent(DataFormats.Bitmap.ToString())) // Clipboard.ContainsImage() )
{
_dataType = DataFormats.Bitmap;
_data = ClipboardDataObject.GetData(_dataType); // Clipboard.GetImage();
_icoItemType = 3;
Image bmp = (Image)_data;
if (bmp != null)
{
_desc = "Bitmap: " + bmp.Width + "x" + bmp.Height;
}
else
{
_desc = "Bitmap: Unknown";
}
} //end else if
else if (ClipboardDataObject.GetDataPresent(DataFormats.FileDrop.ToString())) // Clipboard.ContainsFileDropList() )
{
DropEffect flag = DropEffect.DROPEFFECT_NONE;
//MemoryStream streamType = (MemoryStream)Clipboard.GetData("Preferred DropEffect");
MemoryStream streamType = (MemoryStream)ClipboardDataObject.GetData("Preferred DropEffect");
if (streamType != null)
{
flag = (DropEffect)streamType.ReadByte();
}
bool move = flag.HasFlag(DropEffect.DROPEFFECT_MOVE);
bool copy = flag.HasFlag(DropEffect.DROPEFFECT_COPY);
_dataType = DataFormats.FileDrop;
_data = ClipboardDataObject.GetData(DataFormats.FileDrop.ToString()); // Clipboard.GetData(DataFormats.FileDrop);
string[] svFiles = (string[])_data;
_icoItemType = 4;
if (copy)
{
_icoItemType = svFiles.Length == 1 ? 6 : 8;
}
else if (move)
{
_icoItemType = svFiles.Length == 1 ? 7 : 9;
}
_desc = FileDropListDesc(svFiles);
} //end else if
else //Unsupported format or empty
{
_data = null;
_icoItemType = 5;
if (_svFormats.Length > 0)
{
_desc = "--Unsupported format: " + _svFormats[0] + "--";
}
else
{
_desc = "--Empty--";
}
System.Diagnostics.Trace.WriteLine(
"ClipboardEntry::constructor - Unsupported clipboard format",
"ClipboardEntry");
} //end else
} //end constructor
