public async Task <CommandResult> InvokeAsync()
{
if (Clipboard.ContainsData(PlotClipboardData.Format))
{
var source = PlotClipboardData.Parse((string)Clipboard.GetData(PlotClipboardData.Format));
if (source != null)
{
try {
if (VisualComponent.Device == null)
{
await InteractiveWorkflow.Plots.NewDeviceAsync(VisualComponent.InstanceId);
}
Debug.Assert(VisualComponent.Device != null);
await InteractiveWorkflow.Plots.CopyOrMovePlotFromAsync(source.DeviceId, source.PlotId, VisualComponent.Device, source.Cut);
// If it's a move, clear the clipboard as we don't want
// the user to try to paste it again
if (source.Cut)
{
Clipboard.Clear();
}
} catch (RPlotManagerException ex) {
InteractiveWorkflow.Shell.ShowErrorMessage(ex.Message);
} catch (OperationCanceledException) {
}
}
}
return(CommandResult.Executed);
}
private void UserControl_Drop(object sender, DragEventArgs e)
{
var source = PlotClipboardData.Parse((string)e.Data.GetData(PlotClipboardData.Format));
if (source != null)
{
bool isMove = (e.KeyStates & DragDropKeyStates.ShiftKey) != 0;
try {
Model?.CopyPlotFromAsync(source.DeviceId, source.PlotId, isMove).DoNotWait();
} catch (RPlotManagerException ex) {
MessageBox.Show(ex.Message, string.Empty, MessageBoxButton.OK, MessageBoxImage.Error);
} catch (OperationCanceledException) {
}
e.Handled = true;
}
}
private void UserControl_DragEnter(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(PlotClipboardData.Format))
{
var source = PlotClipboardData.Parse((string)e.Data.GetData(PlotClipboardData.Format));
if (source != null)
{
var targetDeviceId = Model?.Device?.DeviceId;
if (targetDeviceId != source.DeviceId)
{
bool isMove = (e.KeyStates & DragDropKeyStates.ShiftKey) != 0;
e.Effects = isMove ? DragDropEffects.Move : DragDropEffects.Copy;
e.Handled = true;
return;
}
}
}
e.Effects = DragDropEffects.None;
e.Handled = true;
}