internal InkCanvasClipboardDataFormats CopySelectedData(IDataObject dataObject)
{
InkCanvasClipboardDataFormats inkCanvasClipboardDataFormats = InkCanvasClipboardDataFormats.None;
InkCanvasSelection inkCanvasSelection = this.InkCanvas.InkCanvasSelection;
StrokeCollection strokeCollection = inkCanvasSelection.SelectedStrokes;
if (strokeCollection.Count > 1)
{
StrokeCollection strokeCollection2 = new StrokeCollection();
StrokeCollection strokes = this.InkCanvas.Strokes;
int num = 0;
while (num < strokes.Count && strokeCollection.Count != strokeCollection2.Count)
{
for (int i = 0; i < strokeCollection.Count; i++)
{
if (strokes[num] == strokeCollection[i])
{
strokeCollection2.Add(strokeCollection[i]);
break;
}
}
num++;
}
strokeCollection = strokeCollection2.Clone();
}
else
{
strokeCollection = strokeCollection.Clone();
}
List <UIElement> list = new List <UIElement>(inkCanvasSelection.SelectedElements);
Rect selectionBounds = inkCanvasSelection.SelectionBounds;
if (strokeCollection.Count != 0 || list.Count != 0)
{
Matrix identity = Matrix.Identity;
identity.OffsetX = -selectionBounds.Left;
identity.OffsetY = -selectionBounds.Top;
if (strokeCollection.Count != 0)
{
inkCanvasSelection.TransformStrokes(strokeCollection, identity);
ClipboardData clipboardData = new ISFClipboardData(strokeCollection);
clipboardData.CopyToDataObject(dataObject);
inkCanvasClipboardDataFormats |= InkCanvasClipboardDataFormats.ISF;
}
if (this.CopySelectionInXAML(dataObject, strokeCollection, list, identity, selectionBounds.Size))
{
inkCanvasClipboardDataFormats |= InkCanvasClipboardDataFormats.XAML;
}
}
return(inkCanvasClipboardDataFormats);
}
/// <summary>
/// The method copies the current selection to the IDataObject if there is any
/// Called by :
/// InkCanvas.CopyToDataObject
/// </summary>
/// <param name="dataObject">The IDataObject instance</param>
/// <returns>true if there is data being copied. Otherwise return false</returns>
internal InkCanvasClipboardDataFormats CopySelectedData(IDataObject dataObject)
{
InkCanvasClipboardDataFormats copiedDataFormat = InkCanvasClipboardDataFormats.None;
InkCanvasSelection inkCanvasSelection = InkCanvas.InkCanvasSelection;
StrokeCollection strokes = inkCanvasSelection.SelectedStrokes;
if (strokes.Count > 1)
{
//
// order the strokes so they are in the correct z-order
// they appear in on the InkCanvas, or else they will be inconsistent
// if copied / pasted
StrokeCollection orderedStrokes = new StrokeCollection();
StrokeCollection inkCanvasStrokes = InkCanvas.Strokes; //cache to avoid multiple property gets
for (int i = 0; i < inkCanvasStrokes.Count && strokes.Count != orderedStrokes.Count; i++)
{
for (int j = 0; j < strokes.Count; j++)
{
if (inkCanvasStrokes[i] == strokes[j])
{
orderedStrokes.Add(strokes[j]);
break;
}
}
}
Debug.Assert(inkCanvasSelection.SelectedStrokes.Count == orderedStrokes.Count);
//Make a copy collection since we will alter the transform before copying the data.
strokes = orderedStrokes.Clone();
}
else
{
//we only have zero or one stroke so we don't need to order, but we
//do need to clone.
strokes = strokes.Clone();
}
List <UIElement> elements = new List <UIElement>(inkCanvasSelection.SelectedElements);
Rect bounds = inkCanvasSelection.SelectionBounds;
// Now copy the selection in the below orders.
if (strokes.Count != 0 || elements.Count != 0)
{
//
// The selection should be translated to the origin (0, 0) related to its bounds.
// Get the translate transform as a relative bounds.
Matrix transform = Matrix.Identity;
transform.OffsetX = -bounds.Left;
transform.OffsetY = -bounds.Top;
// Add ISF data first.
if (strokes.Count != 0)
{
// Transform the strokes first.
inkCanvasSelection.TransformStrokes(strokes, transform);
ClipboardData data = new ISFClipboardData(strokes);
data.CopyToDataObject(dataObject);
copiedDataFormat |= InkCanvasClipboardDataFormats.ISF;
}
// Then add XAML data.
if (CopySelectionInXAML(dataObject, strokes, elements, transform, bounds.Size))
{
// We have to create an InkCanvas as a container and add all the selection to it.
copiedDataFormat |= InkCanvasClipboardDataFormats.XAML;
}
}
else
{
Debug.Assert(false, "CopySelectData: InkCanvas should have a selection!");
}
return(copiedDataFormat);
}
