public void StartDrag(IDragInfo dragInfo)
{
_projectBrowseControl._controller.AvailableItems_StartDrag(dragInfo.SourceItems, out var data, out var canCopy, out var canMove);
dragInfo.Effects = GuiHelper.ConvertCopyMoveToDragDropEffect(canCopy, canMove);
dragInfo.Data = data;
}
public void StartDrag(IDragInfo dragInfo)
{
var result = _parentControl.AvailableItems_StartDrag?.Invoke(dragInfo.SourceItems);
if (null != result)
{
dragInfo.Effects = GuiHelper.ConvertCopyMoveToDragDropEffect(result.Value.CanCopy, result.Value.CanMove);
dragInfo.Data = result.Value.Data;
}
}
public void Drop(IDropInfo dropInfo)
{
_projectBrowseControl._controller.ListView_Drop(
dropInfo.Data is System.Windows.IDataObject ? GuiHelper.ToAltaxo((System.Windows.IDataObject)dropInfo.Data) : dropInfo.Data,
dropInfo.KeyStates.HasFlag(DragDropKeyStates.ControlKey),
dropInfo.KeyStates.HasFlag(DragDropKeyStates.ShiftKey),
out var isCopy, out var isMove);
dropInfo.Effects = GuiHelper.ConvertCopyMoveToDragDropEffect(isCopy, isMove); // it is important to get back the resulting effect to dropInfo, because dropInfo informs the drag handler about the resulting effect, which can e.g. delete the items after a move operation
}
public void StartDrag(IDragInfo dragInfo)
{
_projectBrowseControl._controller.FolderTree_StartDrag(out var dao, out var canCopy, out var canMove);
dragInfo.Effects = GuiHelper.ConvertCopyMoveToDragDropEffect(canCopy, canMove);
if (null != dao)
{
dragInfo.DataObject = GuiHelper.ToWpf(dao);
}
}
public void StartDrag(IDragInfo dragInfo)
{
GuiHelper.SynchronizeSelectionFromGui(_parentControl._guiCurrentItems);
var result = _parentControl.CurrentItems_StartDrag?.Invoke(dragInfo.SourceItems);
if (null != result)
{
dragInfo.Effects = GuiHelper.ConvertCopyMoveToDragDropEffect(result.Value.CanCopy, result.Value.CanMove);
dragInfo.Data = result.Value.Data;
}
}
protected bool CanAcceptData(IDropInfo dropInfo, out System.Windows.DragDropEffects resultingEffect)
{
_projectBrowseControl._controller.ListView_DropCanAcceptData(
dropInfo.Data is System.Windows.IDataObject ? GuiHelper.ToAltaxo((System.Windows.IDataObject)dropInfo.Data) : dropInfo.Data,
dropInfo.KeyStates.HasFlag(DragDropKeyStates.ControlKey),
dropInfo.KeyStates.HasFlag(DragDropKeyStates.ShiftKey),
out var canCopy, out var canMove);
resultingEffect = GuiHelper.ConvertCopyMoveToDragDropEffect(canCopy, canMove);
return(canCopy | canMove);
}
protected bool CanAcceptData(IDropInfo dropInfo, out System.Windows.DragDropEffects resultingEffect, out Type adornerType)
{
_projectBrowseControl._controller.PlotItems_DropCanAcceptData(
dropInfo.Data is System.Windows.IDataObject ? GuiHelper.ToAltaxo((System.Windows.IDataObject)dropInfo.Data) : dropInfo.Data,
dropInfo.TargetItem as Altaxo.Collections.NGTreeNode,
GuiHelper.ToAltaxo(dropInfo.InsertPosition),
dropInfo.KeyStates.HasFlag(DragDropKeyStates.ControlKey),
dropInfo.KeyStates.HasFlag(DragDropKeyStates.ShiftKey),
out var canCopy, out var canMove, out var itemIsSwallowingData);
resultingEffect = GuiHelper.ConvertCopyMoveToDragDropEffect(canCopy, canMove);
adornerType = itemIsSwallowingData ? DropTargetAdorners.Highlight : DropTargetAdorners.Insert;
return(canCopy | canMove);
}
public void Drop(IDropInfo dropInfo)
{
var result = _parentControl.CurrentItems_Drop?.Invoke(
dropInfo.Data is System.Windows.IDataObject ? GuiHelper.ToAltaxo((System.Windows.IDataObject)dropInfo.Data) : dropInfo.Data,
dropInfo.TargetItem,
GuiHelper.ToAltaxo(dropInfo.InsertPosition),
dropInfo.KeyStates.HasFlag(DragDropKeyStates.ControlKey),
dropInfo.KeyStates.HasFlag(DragDropKeyStates.ShiftKey)
);
if (null != result)
{
dropInfo.Effects = GuiHelper.ConvertCopyMoveToDragDropEffect(result.Value.IsCopy, result.Value.IsMove); // it is important to get back the resulting effect to dropInfo, because dropInfo informs the drag handler about the resulting effect, which can e.g. delete the items after a move operation
}
}
protected bool CanAcceptData(IDropInfo dropInfo, out DragDropEffects resultingEffect, out Type adornerType)
{
var result = _parentControl.CurrentItems_DropCanAcceptData?.Invoke(
dropInfo.Data is System.Windows.IDataObject ? GuiHelper.ToAltaxo((System.Windows.IDataObject)dropInfo.Data) : dropInfo.Data,
dropInfo.TargetItem,
GuiHelper.ToAltaxo(dropInfo.InsertPosition),
dropInfo.KeyStates.HasFlag(DragDropKeyStates.ControlKey),
dropInfo.KeyStates.HasFlag(DragDropKeyStates.ShiftKey));
if (null != result)
{
resultingEffect = GuiHelper.ConvertCopyMoveToDragDropEffect(result.Value.CanCopy, result.Value.CanMove);
adornerType = result.Value.ItemIsSwallowingData ? DropTargetAdorners.Highlight : DropTargetAdorners.Insert;
return(result.Value.CanCopy | result.Value.CanMove);
}
else
{
resultingEffect = DragDropEffects.None;
adornerType = null;
return(false);
}
}