private void DragSourceContainer_MouseMove(object sender, MouseEventArgs e)
{
var coordinates = Coordinates(e);
if (DragManager.DragCandidate != null &&
DragManager.DragCandidateSponsor == DragSource &&
!DragManager.IsDragging &&
coordinates.Distance(mouseDownCoordinates) > 15)
{
SelectionManager.ClearSelection();
DragSource.StartDrag(DragManager.DragCandidate);
DragManager.MouseMove(e.GetPosition(Designer.Instance.Canvas));
}
}
static void DragSource_PreviewMouseMove(object sender, MouseEventArgs e)
{
if (m_DragInfo != null)
{
Point dragStart = m_DragInfo.DragStartPosition;
Point position = e.GetPosition(null);
if (Math.Abs(position.X - dragStart.X) > SystemParameters.MinimumHorizontalDragDistance ||
Math.Abs(position.Y - dragStart.Y) > SystemParameters.MinimumVerticalDragDistance)
{
IDragSource dragHandler = GetDragHandler(m_DragInfo.VisualSource);
if (dragHandler != null)
{
dragHandler.StartDrag(m_DragInfo);
}
else
{
DefaultDragHandler.StartDrag(m_DragInfo);
}
if (m_DragInfo.Effects != DragDropEffects.None && m_DragInfo.Data != null)
{
DataObject data = new DataObject(m_Format.Name, m_DragInfo.Data);
System.Windows.DragDrop.DoDragDrop(m_DragInfo.VisualSource, data, m_DragInfo.Effects);
m_DragInfo = null;
}
}
}
}
static void DragSource_PreviewMouseMove(object sender, MouseEventArgs e)
{
if (m_DragInfo != null && !m_DragInProgress)
{
Point dragStart = m_DragInfo.DragStartPosition;
Point position = e.GetPosition(null);
if (Math.Abs(position.X - dragStart.X) > SystemParameters.MinimumHorizontalDragDistance ||
Math.Abs(position.Y - dragStart.Y) > SystemParameters.MinimumVerticalDragDistance)
{
IDragSource dragHandler = GetDragHandler(m_DragInfo.VisualSource);
if (dragHandler != null)
{
dragHandler.StartDrag(m_DragInfo);
}
else
{
DefaultDragHandler.StartDrag(m_DragInfo);
}
if (m_DragInfo.Effects != DragDropEffects.None && m_DragInfo.Data != null)
{
DataObject data = new DataObject(DataFormat.Name, m_DragInfo.Data);
// Auch noch die Daten für den File-DragDrop einbauen
StringCollection files = new StringCollection();
if (m_DragInfo.Data is Track)
{
files.Add(((Track)m_DragInfo.Data).Soundfile);
}
if (files.Count > 0 && !string.IsNullOrEmpty(files[0]))
{
data.SetFileDropList(files);
m_DragInfo.Effects = DragDropEffects.Copy;
}
try
{
m_DragInProgress = true;
System.Windows.DragDrop.DoDragDrop(m_DragInfo.VisualSource, data, m_DragInfo.Effects);
}
finally
{
m_DragInProgress = false;
}
m_DragInfo = null;
}
}
}
}
private static void DragSource_PreviewMouseMove(object sender, MouseEventArgs e)
{
if (_dragInfo == null || _dragInProgress)
{
return;
}
Point dragStart = _dragInfo.DragStartPosition;
Point position = e.GetPosition(null);
if (Math.Abs(position.X - dragStart.X) <= SystemParameters.MinimumHorizontalDragDistance &&
Math.Abs(position.Y - dragStart.Y) <= SystemParameters.MinimumVerticalDragDistance)
{
return;
}
IDragSource dragHandler = GetDragHandler(_dragInfo.VisualSource);
if (dragHandler != null)
{
dragHandler.StartDrag(_dragInfo);
}
else
{
DefaultDragHandler.StartDrag(_dragInfo);
}
if (_dragInfo.Effects == DragDropEffects.None || _dragInfo.Data == null)
{
return;
}
var data = new DataObject(DataFormat.Name, _dragInfo.Data);
try
{
_dragInProgress = true;
System.Windows.DragDrop.DoDragDrop(_dragInfo.VisualSource, data, _dragInfo.Effects);
}
finally
{
_dragInProgress = false;
}
_dragInfo = null;
}
static void DragSource_PreviewMouseMove(object sender, MouseEventArgs e)
{
if (m_DragInfo != null && e.LeftButton == MouseButtonState.Pressed)
{
Point dragStart = m_DragInfo.DragStartPosition;
Point position = e.GetPosition(null);
if (Math.Abs(position.X - dragStart.X) > SystemParameters.MinimumHorizontalDragDistance ||
Math.Abs(position.Y - dragStart.Y) > SystemParameters.MinimumVerticalDragDistance)
{
IDragSource dragHandler = GetDragHandler(m_DragInfo.VisualSource);
// drag started
argsSaved = null;
sourceItemTemp = null;
if (dragHandler != null)
{
dragHandler.StartDrag(m_DragInfo);
}
else
{
DefaultDragHandler.StartDrag(m_DragInfo);
}
if (m_DragInfo.Effects != DragDropEffects.None && m_DragInfo.Data != null)
{
DataObject data = new DataObject(m_Format.Name, m_DragInfo.Data);
System.Windows.DragDrop.DoDragDrop(m_DragInfo.VisualSource, data, m_DragInfo.Effects);
m_DragInfo = null;
}
}
}
else
{
m_DragInfo = null;
UIElement element = sender as UIElement;
if (element.IsMouseCaptured)
{
element.ReleaseMouseCapture();
}
}
}
