protected override void OnThumbDragCompleted(DragCompletedEventArgs e)
{
base.OnThumbDragCompleted(e);
if (_initialCornerRadius == Value)
{
return;
}
CompositeCommand cmds = new CompositeCommand();
// Create undoable command for widgets
foreach (RoundedRecWidgetViewModel item in _infoItems)
{
item.PropertyMementos.SetPropertyNewValue("CornerRadius", item.CornerRadius);
PropertyChangeCommand cmd = new PropertyChangeCommand(item, item.PropertyMementos);
cmds.AddCommand(cmd);
}
// Push to undo stack
if (cmds.Count > 0)
{
DesignerCanvas designerCanvas = VisualTreeHelper.GetParent(VisualTreeHelper.GetParent(VisualTreeHelper.GetParent(this.designerItem))) as DesignerCanvas;
ISupportUndo pageVMUndo = designerCanvas.DataContext as ISupportUndo;
pageVMUndo.UndoManager.Push(cmds);
}
}
private void PushUndoStack()
{
// Undo/Redo
ISupportUndo pageVMUndo = designerCanvas.DataContext as ISupportUndo;
IGroupOperation pageVMGroup = designerCanvas.DataContext as IGroupOperation;
if (pageVMUndo == null)
{
return;
}
CompositeCommand cmds = new CompositeCommand();
IPagePropertyData Page = designerCanvas.DataContext as IPagePropertyData;
bool bHasGroup = Page.GetSelectedwidgets().Any(a => a.IsGroup);
// Create undoable command for widgets
foreach (WidgetViewModBase item in _infoItems)
{
item.PropertyMementos.SetPropertyNewValue("Left", item.Raw_Left);
item.PropertyMementos.SetPropertyNewValue("Top", item.Raw_Top);
if (item.WidgetType == WidgetType.Toast && item.Top != 0)
{
item.PropertyMementos.SetPropertyNewValue("DisplayPosition", ToastDisplayPosition.UserSetting);
}
PropertyChangeCommand cmd = new PropertyChangeCommand(item, item.PropertyMementos);
cmds.AddCommand(cmd);
}
// Create undoable command for groups
if (pageVMGroup != null)
{
List <Guid> groupGuids = _groups.Select(x => x.WidgetID).ToList();
if (designerItem.ParentID != Guid.Empty)
{
groupGuids.Add(designerItem.ParentID);
}
if (groupGuids.Count > 0)
{
UpdateGroupCommand cmd = new UpdateGroupCommand(pageVMGroup, groupGuids);
cmds.AddCommand(cmd);
}
}
// Push to undo stack
if (cmds.Count > 0)
{
List <IWidgetPropertyData> allSelects = _selectionService.GetSelectedWidgets();
cmds.AddCommand(new SelectCommand(pageVMGroup, allSelects));
cmds.DeselectAllWidgetsFirst();
pageVMUndo.UndoManager.Push(cmds);
}
}
/// <summary>
/// Binds a business object to the BindingSource.
/// </summary>
/// <param name="objectToBind">
/// Business object.
/// </param>
public void Bind(object objectToBind)
{
ISupportUndo root = objectToBind as ISupportUndo;
if (root != null)
{
root.BeginEdit();
}
_source.DataSource = objectToBind;
SetEvents(true);
ResetBindings(false);
}
/// <summary>
/// Applies changes to the business object.
/// </summary>
public void Apply()
{
SetEvents(false);
ISupportUndo root = _source.DataSource as ISupportUndo;
Unbind(false);
EndEdit();
if (root != null)
{
root.ApplyEdit();
}
}
public MoveThumb()
{
DragStarted += MoveThumb_DragStarted;
DragDelta += MoveThumb_DragDelta;
DragCompleted += new DragCompletedEventHandler(this.MoveThumb_DragCompleted);
ISelectionService selectionService = ServiceLocator.Current.GetInstance <SelectionServiceProvider>();
ISupportUndo pageVM = selectionService.GetCurrentPage() as ISupportUndo;
if (pageVM != null)
{
pageUndoManager = pageVM.UndoManager;
}
}
/// <summary>
/// Cancels changes to the business object.
/// </summary>
/// <param name="businessObject"></param>
public void Cancel(object businessObject)
{
SetEvents(false);
ISupportUndo root = _source.DataSource as ISupportUndo;
Unbind(true);
if (root != null)
{
root.CancelEdit();
}
Bind(businessObject);
}
/// <summary>
/// Executes the next UNDO operation.
/// </summary>
/// <returns>True if an undo was executed</returns>
public bool Undo()
{
if (CanUndo)
{
ISupportUndo undo = null;
lock (_lock)
{
if (_undoOperations.Count > 0)
{
_isUndoingOperation = true;
undo = _undoOperations.First.Value;
_undoOperations.RemoveFirst();
}
}
if (undo != null)
{
try
{
undo.Undo();
if (undo.CanRedo)
{
lock (_lock)
{
_redoOperations.AddFirst(undo);
while (_redoOperations.Count > _maxSupportedOperations)
{
_redoOperations.RemoveLast();
}
}
}
return(true);
}
finally
{
lock (_lock)
{
_isUndoingOperation = false;
}
}
}
}
return(false);
}
/// <summary>
/// Adds a new undo operation to the stack.
/// </summary>
/// <param name="undoOp">operation</param>
/// <param name="noInsertIfInUndoOperation">True if the insertion should not occur if in an UNDO operation</param>
/// <returns>True if undo operation was added to stack</returns>
public bool Add(ISupportUndo undoOp, bool noInsertIfInUndoOperation = true)
{
if (undoOp == null)
{
throw new ArgumentNullException("undoOp");
}
if (noInsertIfInUndoOperation && _isUndoingOperation)
{
return(false);
}
lock (_lock)
{
_undoOperations.AddFirst(undoOp);
while (_undoOperations.Count > MaxSupportedOperations)
{
_undoOperations.RemoveLast();
}
}
return(true);
}
private void RotateThumb_DragCompleted(object sender, DragCompletedEventArgs e)
{
if (_infoItems.Count <= 0)
{
return;
}
// Undo/Redo
ISupportUndo pageVMUndo = canvas.DataContext as ISupportUndo;
IGroupOperation pageVMGroup = canvas.DataContext as IGroupOperation;
if (pageVMUndo == null)
{
return;
}
CompositeCommand cmds = new CompositeCommand();
// Create undoable command for widgets
foreach (WidgetViewModBase item in _infoItems)
{
item.PropertyMementos.SetPropertyNewValue("RotateAngle", item.RotateAngle);
if (this.designerItem.IsGroup)
{
item.PropertyMementos.SetPropertyNewValue("Left", item.Raw_Left);
item.PropertyMementos.SetPropertyNewValue("Top", item.Raw_Top);
}
PropertyChangeCommand cmd = new PropertyChangeCommand(item, item.PropertyMementos);
cmds.AddCommand(cmd);
}
// Create undoable command for groups
if (pageVMGroup != null)
{
List <Guid> groupGuids = new List <Guid>();
if (designerItem.ParentID != Guid.Empty)
{
groupGuids.Add(designerItem.ParentID);
UpdateGroupCommand cmd = new UpdateGroupCommand(pageVMGroup, groupGuids);
cmds.AddCommand(cmd);
}
if (this.designerItem.IsGroup)
{
groupGuids.Add((designerItem.DataContext as GroupViewModel).WidgetID);
UpdateGroupCommand cmd = new UpdateGroupCommand(pageVMGroup, groupGuids);
cmds.AddCommand(cmd);
}
}
// Push to undo stack
if (cmds.Count > 0)
{
List <IWidgetPropertyData> allSelects = _selectionService.GetSelectedWidgets();
cmds.AddCommand(new SelectCommand(pageVMGroup, allSelects));
cmds.DeselectAllWidgetsFirst();
pageVMUndo.UndoManager.Push(cmds);
}
}
/// <summary>
/// Adds a new undo operation to the collection
/// </summary>
/// <param name="operation">Operation</param>
public void Add(ISupportUndo operation)
{
_undoStack.Add(operation);
}
