private void replace(bool newByOld)
{
// iterate on all the layers
for (int i = 0; i < mBrickLayerList.Count; ++i)
{
// get the layer and the list of brick pair to replace
LayerBrick currentLayer = mBrickLayerList[i];
List <BrickPair> currentPairList = mBrickPairList[i];
// clear the selection (we will select the replaced brick for updating the connectivity)
currentLayer.clearSelection();
if (currentPairList.Count > 0)
{
// iterate on all the brick pair
foreach (BrickPair brickPair in currentPairList)
{
// get the old and new brick
Layer.LayerItem oldOne = brickPair.mOldBrick;
Layer.LayerItem newOne = brickPair.mNewBrick;
// reverse them if needed
if (newByOld)
{
oldOne = brickPair.mNewBrick;
newOne = brickPair.mOldBrick;
}
// replace the old brick with the new one in the current layer
replaceOneItem(currentLayer, oldOne, newOne);
// add the brick in the selection for updating connectivity later
currentLayer.addObjectInSelection(newOne);
}
// update the connectivity of the whole layer after replacement
currentLayer.updateFullBrickConnectivityForSelectedBricksOnly();
// clear the selection again (it was only use for fast connectivity update)
currentLayer.clearSelection();
}
// If the current layer is the one which has the selection
// reselect all the new brick
if (currentLayer == mLayerWhereToSelectTheReplacedBricks)
{
foreach (BrickPair brickPair in mReplacedBricksToSelect)
{
if (newByOld)
{
currentLayer.addObjectInSelection(brickPair.mOldBrick);
}
else
{
currentLayer.addObjectInSelection(brickPair.mNewBrick);
}
}
}
}
}
public override void redo()
{
// clear the selection to reselect the parts of the group
mBrickLayer.clearSelection();
// add all the part of the group in the same order as in the group
int insertIndex = mInsertIndex;
foreach (Layer.LayerItem item in mBricksInTheGroup)
{
mBrickLayer.addBrick(item as LayerBrick.Brick, insertIndex);
// update the connectivity of each brick, in order to also create connections
// between bricks inside the same group, otherwise if we update the connectivity of
// the selection, the connectivity inside the selection will not change
mBrickLayer.updateFullBrickConnectivityForOneBrick(item as LayerBrick.Brick);
// select the brick (in order to select the whole group at the end
mBrickLayer.addObjectInSelection(item);
// increase the index if it is valid
if (insertIndex != -1)
{
insertIndex++;
}
}
// set the prefered index after the adding,
// because the connection of the brick will move automatically the the active connection
setActiveConnectionIndex(mNextPreferedActiveConnectionIndex);
// notify the part list view (after actually adding the brick because the total map size need to be recomputed)
MainForm.Instance.NotifyPartListForBrickAdded(mBrickLayer, mGroup, false);
}
public override void redo()
{
// special case for easy editing: if the group of brick has connection points and is connected
// to bricks not deleted we select the connected brick,
// such as the user can press several times on the del button to delete a full line of track.
LayerBrick.Brick nextBrickToSelect = null;
int nextActiveConnectionPointIndex = -1;
foreach (Layer.LayerItem item in mBricks)
{
LayerBrick.Brick brick = item as LayerBrick.Brick;
if (brick.HasConnectionPoint)
{
foreach (LayerBrick.Brick.ConnectionPoint connexion in brick.ConnectionPoints)
{
if (!connexion.IsFree && !mBricks.Contains(connexion.ConnectionLink.mMyBrick))
{
nextBrickToSelect = connexion.ConnectionLink.mMyBrick;
nextActiveConnectionPointIndex = connexion.ConnectionLink.Index;
break;
}
}
}
if (nextBrickToSelect != null)
{
break;
}
}
// remove the specified brick from the list of the layer,
// but do not delete it, also memorise its last position
mBrickIndex.Clear();
foreach (Layer.LayerItem obj in mBricks)
{
mBrickIndex.Add(mBrickLayer.removeBrick(obj as LayerBrick.Brick));
}
// don't need to update the connectivity of the bricks because we do it specifically for the brick removed
// mBrickLayer.updateBrickConnectivityOfSelection(false);
// check if we have to select a brick
if (nextBrickToSelect != null)
{
mBrickLayer.clearSelection();
mBrickLayer.addObjectInSelection(nextBrickToSelect);
// set also the active connection point
if (nextActiveConnectionPointIndex >= 0)
{
nextBrickToSelect.ActiveConnectionPointIndex = nextActiveConnectionPointIndex;
}
}
// notify the part list view (after actually deleting the brick because the total map size need to be recomputed)
foreach (Layer.LayerItem item in mBricksForNotification)
{
MainForm.Instance.NotifyPartListForBrickRemoved(mBrickLayer, item, false);
}
}