/// <summary>
/// Applies <paramref name="operation"/> to <paramref name="item"/> and returns
/// an <see cref="UndoableCommand"/> that can undo and redo the operation.
/// </summary>
/// <returns>
/// An <see cref="UndoableCommand"/> if application of <paramref name="operation"/>
/// resulted in a change to the internal state of <paramref name="item"/>, otherwise null.
/// </returns>
/// <remarks>
/// <para>
/// The default implementation takes the <see cref="MemorableUndoableCommand"/> returned
/// by the base method and wraps it in a <see cref="DrawableUndoableCommand"/>.
/// </para>
/// <para>
/// Inheritors can override this method to do any additional processing and/or to
/// modify the resulting command, if necessary.
/// </para>
/// </remarks>
protected override UndoableCommand Apply(IUndoableOperation <T> operation, T item)
{
UndoableCommand command = base.Apply(operation, item);
if (command != null)
{
item.Draw();
DrawableUndoableCommand drawableCommand = new DrawableUndoableCommand(item);
drawableCommand.Enqueue(command);
command = drawableCommand;
}
return(command);
}
public void SubGrid(ImageDisplayFormat displayFormat)
{
if (RootImageBox.SelectedTile == null)
{
return;
}
var printViewTile = RootImageBox.SelectedTile as PrintViewTile;
var memorableCommand = new MemorableUndoableCommand(RootImageBox)
{
BeginState = RootImageBox.CreateMemento()
};
List <PrintViewTile> selectTiles;
if (RootImageBox.DisplaySet != null && RootImageBox.DisplaySet.PresentationImages.Count != 0)
{
selectTiles = new List <PrintViewTile>();
foreach (var selectPresentationImage in RootImageBox.SelectPresentationImages)
{
if (selectPresentationImage.Tile == null)
{
continue;
}
var tile = selectPresentationImage.Tile as PrintViewTile;
if (!selectTiles.Contains(tile) && !tile.isSubTile)
{
selectTiles.Add(tile);
}
}
if (!selectTiles.Contains(printViewTile) && !printViewTile.isSubTile)
{
selectTiles.Add(printViewTile);
}
}
else
{
selectTiles = new List <PrintViewTile>();
foreach (var selectTile in RootImageBox.SelectTiles)
{
if (!selectTiles.Contains(selectTile) && !selectTile.isSubTile)
{
selectTiles.Add(selectTile);
}
}
}
if (selectTiles.Count == 0)
{
return;
}
foreach (var tile in selectTiles)
{
TileCollection collection = SetTileGridFactory(displayFormat);
if (collection == null)
{
continue;
}
SubGridFactory(displayFormat, ref collection, tile);
int index = RootImageBox.Tiles.IndexOf(tile);
RootImageBox.Tiles.Remove(tile);
for (int i = collection.Count - 1; i >= 0; i--)
{
var item = collection[i] as PrintViewTile;
item.isSubTile = true;
item.ParentPrintViewTile = tile;
RootImageBox.Tiles.Insert(index, item);
tile.SubTiles.Add(item);
}
}
EventsHelper.Fire(_layoutCompletedEvent, this, EventArgs.Empty);
this.RootImageBox.TopLeftPresentationImageIndex = 0;
this.RootImageBox.Draw();
ClearSelectTiles();
this.RootImageBox.SelectDefaultTile();
memorableCommand.EndState = RootImageBox.CreateMemento();
var historyCommand = new DrawableUndoableCommand(RootImageBox)
{
Name = "RootImageBoxSubGrid"
};
historyCommand.Enqueue(memorableCommand);
CommandHistory.AddCommand(historyCommand);
PropertyValueChanged();
}
public void MergerGrid()
{
if (RootImageBox.SelectedTile == null)
{
return;
}
var printViewTile = RootImageBox.SelectedTile as PrintViewTile;
var memorableCommand = new MemorableUndoableCommand(RootImageBox)
{
BeginState = RootImageBox.CreateMemento()
};
List <PrintViewTile> selectTiles;
if (RootImageBox.DisplaySet != null && RootImageBox.DisplaySet.PresentationImages.Count != 0)
{
selectTiles = new List <PrintViewTile>();
foreach (var selectPresentationImage in RootImageBox.SelectPresentationImages)
{
if (selectPresentationImage.Tile == null)
{
continue;
}
var tile = selectPresentationImage.Tile as PrintViewTile;
if (!selectTiles.Contains(tile))
{
selectTiles.Add(tile);
}
}
if (!selectTiles.Contains(printViewTile))
{
selectTiles.Add(printViewTile);
}
}
else
{
selectTiles = new List <PrintViewTile>();
foreach (var selectTile in RootImageBox.SelectTiles)
{
if (!selectTiles.Contains(selectTile))
{
selectTiles.Add(selectTile);
}
}
}
if (selectTiles.Count <= 1)
{
return;
}
//合并单元格
//并集合
var mycell = RectangleF.Union(selectTiles[0].NormalizedRectangle, selectTiles[1].NormalizedRectangle);
for (int i = 2; i < selectTiles.Count; i++)
{
mycell = RectangleF.Union(mycell, selectTiles[i].NormalizedRectangle);
}
//移出与合并之后相交的单元格
var intersecTiles = new List <ITile>();
foreach (var tile in RootImageBox.Tiles)
{
if (mycell.IntersectsWith(tile.NormalizedRectangle))
{
intersecTiles.Add(tile);
}
}
if (intersecTiles.Count == 0)
{
return;
}
//确定单元格的位置
int index = RootImageBox.Tiles.IndexOf(intersecTiles[0]);
if (index == -1)
{
return;
}
var mergerResult = new PrintViewTile();
mergerResult.NormalizedRectangle = mycell;
RootImageBox.Tiles.Insert(index, mergerResult);
//移出相交的单元格
foreach (var item in intersecTiles)
{
RootImageBox.Tiles.Remove(item);
}
EventsHelper.Fire(_layoutCompletedEvent, this, EventArgs.Empty);
this.RootImageBox.TopLeftPresentationImageIndex = 0;
this.RootImageBox.Draw();
ClearSelectTiles();
this.RootImageBox.SelectDefaultTile();
memorableCommand.EndState = RootImageBox.CreateMemento();
var historyCommand = new DrawableUndoableCommand(RootImageBox)
{
Name = "RootImageBoxMergerGrid"
};
historyCommand.Enqueue(memorableCommand);
CommandHistory.AddCommand(historyCommand);
PropertyValueChanged();
}