public override void Undo(Layers list)
{
if (this.prepareHitProject != null)
{
prepareHitProject.ApplyProperties(prepareHitProject.OldProperties);
}
}
public override void Undo(Layers list)
{
// Delete from list all objects kept in cloneList
int n = list[list.ActiveLayerIndex].Graphics.Count;
for (int i = n - 1; i >= 0; i--)
{
bool toDelete = false;
DrawObject objectToDelete = list[list.ActiveLayerIndex].Graphics[i];
foreach (DrawObject o in cloneList)
{
if (objectToDelete.ID ==
o.ID)
{
toDelete = true;
break;
}
}
if (toDelete)
{
list[list.ActiveLayerIndex].Graphics.RemoveAt(i);
}
}
}
public override void Undo(Layers list)
{
// Add all objects from clone list to list -
// opposite to DeleteAll
foreach (DrawObject o in cloneList)
{
list[list.ActiveLayerIndex].Graphics.Add(o);
}
}
public override void Undo(Layers list)
{
list[list.ActiveLayerIndex].Graphics.UnselectAll();
// Add all objects from cloneList to list.
foreach (DrawObject o in cloneList)
{
list[list.ActiveLayerIndex].Graphics.Add(o);
}
}
public override void Redo(Layers list)
{
list[list.ActiveLayerIndex].Graphics.UnselectAll();
// Add all objects from cloneList to list.
for (int i = cloneList.Count - 1; i >= 0; i--)
{
list[list.ActiveLayerIndex].Graphics.Add(cloneList[i]);
}
}
private List<DrawObject> cloneList; // contains selected items which are deleted
#endregion Fields
#region Constructors
// Create this command BEFORE applying Delete All function.
public CommandPaste(Layers list)
{
cloneList = new List<DrawObject>();
// Make clone of the list selection.
foreach (DrawObject o in list[list.ActiveLayerIndex].Graphics.Selection)
{
cloneList.Add(o.Clone());
}
}
public LayerDialog(Layers _layers)
{
InitializeComponent();
for (int i = 0; i < _layers.Count; i++)
{
LayerEdit le = new LayerEdit();
le.LayerName = _layers[i].LayerName;
le.LayerVisible = _layers[i].IsVisible;
le.LayerActive = _layers[i].IsActive;
layerList.Add(le);
}
SetDataGrid();
}
// Create this command BEFORE applying Delete All function.
public CommandDeleteAll(Layers list)
{
cloneList = new List<DrawObject>();
// Make clone of the whole list.
// Add objects in reverse order because GraphicsList.Add
// insert every object to the beginning.
int n = list[list.ActiveLayerIndex].Graphics.Count;
for (int i = n - 1; i >= 0; i--)
{
cloneList.Add(list[list.ActiveLayerIndex].Graphics[i].Clone());
}
}
public UndoManager(Layers layerList)
{
layers = layerList;
ClearHistory();
}
public override void Undo(Layers list)
{
// Replace all objects in the list with objects from listBefore
ReplaceObjects(list[activeLayer].Graphics, listBefore);
}
public override void Redo(Layers list)
{
// Replace all objects in the list with objects from listAfter
ReplaceObjects(list[activeLayer].Graphics, listAfter);
}
// Call this function AFTER operation.
public void NewState(Layers layerList)
{
// Keep objects state after operation.
FillList(layerList[activeLayer].Graphics, ref listAfter);
}
// Create this command BEFORE operation.
public CommandChangeState(Layers layerList)
{
// Keep objects state before operation.
activeLayer = layerList.ActiveLayerIndex;
FillList(layerList[activeLayer].Graphics, ref listBefore);
}
public override void Redo(Layers list)
{
// Clear list - make DeleteAll again
list[list.ActiveLayerIndex].Graphics.Clear();
}
/// <summary>
/// Undo last Add command
/// </summary>
/// <param name="list">Layers collection</param>
public override void Undo(Layers list)
{
list[list.ActiveLayerIndex].Graphics.DeleteLastAddedObject();
}
/// <summary>
/// Redo last Add command
/// </summary>
/// <param name="list">Layers collection</param>
public override void Redo(Layers list)
{
list[list.ActiveLayerIndex].Graphics.UnselectAll();
list[list.ActiveLayerIndex].Graphics.Add(drawObject);
}
// This function is used to make Undo operation. // It makes action opposite to the original command. //public abstract void Undo(GraphicsList list); public abstract void Undo(Layers list);
// This command is used to make Redo operation. // It makes original command again. //public abstract void Redo(GraphicsList list); public abstract void Redo(Layers list);
