private void control_DragDrop(object sender, DragEventArgs e)
{
SetMousePosition(e);
IInstancingContext instancingContext = AdaptedControl.ContextAs <IInstancingContext>();
if (instancingContext != null &&
instancingContext.CanInsert(e.Data))
{
try
{
m_isDropping = true;
string name = "Drag and Drop".Localize();
ITransactionContext transactionContext = AdaptedControl.ContextAs <ITransactionContext>();
transactionContext.DoTransaction(
delegate
{
instancingContext.Insert(e.Data);
if (m_statusService != null)
{
m_statusService.ShowStatus(name);
}
}, name);
AdaptedControl.Focus();
}
finally
{
m_isDropping = false;
}
}
}
/// <summary>
/// Called on drag and drop event
/// </summary>
/// <param name="e">Event args</param>
protected virtual void OnDragDrop(DragEventArgs e)
{
IInstancingContext instancingContext = m_rootAssetFolder.As <IInstancingContext>();
IEnumerable <object> converted = ApplicationUtil.Convert(e.Data, instancingContext, m_dataObjectConverters);
ApplicationUtil.Drop(converted, instancingContext, m_statusService);
}
private void Delete(string commandName)
{
OnDeleting(EventArgs.Empty);
IInstancingContext instancingContext = m_contextRegistry.GetActiveContext <IInstancingContext>();
if (instancingContext != null &&
instancingContext.CanDelete())
{
ITransactionContext transactionContext = instancingContext.As <ITransactionContext>();
transactionContext.DoTransaction(
delegate
{
instancingContext.Delete();
ISelectionContext selectionContext = instancingContext.As <ISelectionContext>();
if (selectionContext != null)
{
selectionContext.Clear();
}
}, commandName);
}
OnDeleted(EventArgs.Empty);
}
/// <summary>
/// Returns whether the active context can paste from the clipboard</summary>
/// <returns>True iff the active context can paste from the clipboard</returns>
public bool CanPaste()
{
IInstancingContext instancingContext = m_contextRegistry.GetActiveContext <IInstancingContext>();
return
(instancingContext != null &&
instancingContext.CanInsert(Clipboard));
}
private void thumbnailControl_DragDrop(object sender, DragEventArgs e)
{
m_lastHit = m_currentAssetFolder;
IInstancingContext instancingContext = m_rootAssetFolder.As <IInstancingContext>();
IEnumerable <object> converted = ApplicationUtil.Convert(e.Data, instancingContext, m_dataObjectConverters);
ApplicationUtil.Drop(converted, instancingContext, m_statusService);
}
/// <summary>
/// Returns a value indicating if the active context can delete the selection</summary>
/// <returns>True iff the active context can delete the selection</returns>
public bool CanDelete()
{
IInstancingContext instancingContext = m_contextRegistry.GetActiveContext <IInstancingContext>();
return
(instancingContext != null &&
instancingContext.CanDelete());
}
/// <summary>
/// Called on dragging mouse over event
/// </summary>
/// <param name="e">Event args</param>
protected virtual void OnDragOver(DragEventArgs e)
{
e.Effect = DragDropEffects.None;
IInstancingContext instancingContext = m_rootAssetFolder.As <IInstancingContext>();
IEnumerable converted = ApplicationUtil.Convert(e.Data, instancingContext, m_dataObjectConverters);
if (converted != null)
{
e.Effect = DragDropEffects.Move;
}
}
private void thumbnailControl_DragOver(object sender, DragEventArgs e)
{
e.Effect = DragDropEffects.None;
m_lastHit = m_currentAssetFolder;
IInstancingContext instancingContext = m_rootAssetFolder.As <IInstancingContext>();
IEnumerable converted = ApplicationUtil.Convert(e.Data, instancingContext, m_dataObjectConverters);
if (converted != null)
{
e.Effect = DragDropEffects.Move;
}
}
private void control_DragOver(object sender, DragEventArgs e)
{
SetMousePosition(e);
e.Effect = DragDropEffects.None;
IInstancingContext instancingContext = AdaptedControl.ContextAs <IInstancingContext>();
if (instancingContext != null &&
instancingContext.CanInsert(e.Data))
{
OnDragOver(e);
}
}
/// <summary>
/// Paste's the clipboard into the active context</summary>
public void Paste()
{
IInstancingContext instancingContext = m_contextRegistry.GetActiveContext <IInstancingContext>();
if (instancingContext != null &&
instancingContext.CanInsert(Clipboard))
{
ITransactionContext transactionContext = instancingContext.As <ITransactionContext>();
transactionContext.DoTransaction(
delegate
{
instancingContext.Insert(Clipboard);
}, CommandInfo.EditPaste.MenuText);
OnPasted(EventArgs.Empty);
}
}
/// <summary>
/// Copies the active context's selection to the clipboard</summary>
public void Copy()
{
IInstancingContext instancingContext = m_contextRegistry.GetActiveContext <IInstancingContext>();
if (instancingContext != null &&
instancingContext.CanCopy())
{
object rawObject = instancingContext.Copy();
IDataObject dataObject = rawObject as IDataObject ?? new DataObject(rawObject);
OnCopying(EventArgs.Empty);
Clipboard = dataObject;
OnCopied(EventArgs.Empty);
}
}
/// <summary>
/// Perform the actual insertion</summary>
/// <param name="context">Must implement IHierarchicalInsertionContext and/or
/// IInstancingContext to succeed</param>
/// <param name="parent">Optional. Parent object to which the new child is added. Can be null
/// if the context supports it.</param>
/// <param name="child">New child object to be inserted into the specified parent</param>
private static void DoInsert(object context, object parent, object child)
{
IHierarchicalInsertionContext hierarchicalInsertionContext = context.As <IHierarchicalInsertionContext>();
if (hierarchicalInsertionContext != null)
{
hierarchicalInsertionContext.Insert(parent, child);
}
else
{
IInstancingContext instancingContext = context.As <IInstancingContext>();
if (instancingContext != null)
{
instancingContext.Insert(child);
}
}
}
/// <summary>
/// Gets tags for context menu (right click) commands</summary>
/// <param name="context">Context containing target object</param>
/// <param name="clicked">Right clicked object, or null if none</param>
IEnumerable <object> IContextMenuCommandProvider.GetCommands(object context, object clicked)
{
ISelectionContext selectionContext = context.As <ISelectionContext>();
IInstancingContext instancingContext = context.As <IInstancingContext>();
if ((selectionContext != null) && (instancingContext != null))
{
return(new object[]
{
StandardCommand.EditCut,
StandardCommand.EditCopy,
StandardCommand.EditPaste,
StandardCommand.EditDelete
});
}
return(EmptyEnumerable <object> .Instance);
}
private void listView_DragDrop(object sender, DragEventArgs e)
{
IInstancingContext context = m_eventSequenceContext;
if (context.CanInsert(e.Data))
{
ITransactionContext transactionContext = context as ITransactionContext;
transactionContext.DoTransaction(delegate
{
context.Insert(e.Data);
}, "Drag and Drop".Localize());
if (m_statusService != null)
{
m_statusService.ShowStatus("Drag and Drop".Localize());
}
}
}
/// <summary>
/// Indicates if the specified child can be inserted into the specified parent object</summary>
/// <param name="context">Must implement IHierarchicalInsertionContext and/or
/// IInstancingContext to succeed</param>
/// <param name="parent">Optional. Parent object we want to insert into. Can be null if the
/// context supports it.</param>
/// <param name="child">Child object to be inserted into the specified parent</param>
/// <returns>True iff the child can be inserted into the parent (or the context supports
/// parent-less insertion)</returns>
/// <remarks>The context must implement IHierarchicalInsertionContext and/or IInstancingContext
/// to allow insertion. If the context implements both, IHierarchicalInsertionContext is preferred and
/// any insertion logic in the IInstancingContext implementation is ignored!</remarks>
public static bool CanInsert(object context, object parent, object child)
{
IHierarchicalInsertionContext hierarchicalInsertionContext = context.As <IHierarchicalInsertionContext>();
if (hierarchicalInsertionContext != null)
{
return(hierarchicalInsertionContext.CanInsert(parent, child));
}
else
{
IInstancingContext instancingContext = context.As <IInstancingContext>();
if (instancingContext != null)
{
return(instancingContext.CanInsert(child));
}
}
return(false);
}
private void resourcesListView_DragDrop(object sender, DragEventArgs e)
{
if (m_event != null)
{
IInstancingContext context = m_event.Cast <IInstancingContext>();
if (context.CanInsert(e.Data))
{
ITransactionContext transactionContext = context as ITransactionContext;
TransactionContexts.DoTransaction(transactionContext,
delegate
{
context.Insert(e.Data);
},
Localizer.Localize("Drag and Drop"));
if (m_statusService != null)
{
m_statusService.ShowStatus(Localizer.Localize("Drag and Drop"));
}
}
}
}
/// <summary>
/// Checks whether the client can do the command, if it handles it</summary>
/// <param name="commandTag">Command to be done</param>
/// <returns>True iff client can do the command</returns>
bool ICommandClient.CanDoCommand(object commandTag)
{
bool canDo = false;
IInstancingContext instancingContext = m_contextRegistry.GetActiveContext <IInstancingContext>();
switch ((StandardCommand)commandTag)
{
case StandardCommand.EditCut:
canDo =
instancingContext != null &&
instancingContext.CanCopy() &&
instancingContext.CanDelete();
break;
case StandardCommand.EditDelete:
canDo =
instancingContext != null &&
instancingContext.CanDelete();
break;
case StandardCommand.EditCopy:
canDo =
instancingContext != null &&
instancingContext.CanCopy();
break;
case StandardCommand.EditPaste:
canDo =
instancingContext != null &&
CanPaste();
break;
}
return(canDo);
}
