/// <inheritdoc/>
public override void StartInteraction(DiagramInteractionEventArguments interaction)
{
PreviousMouseLocation = interaction.MousePosition;
_resizingNodes = interaction.Diagram.Nodes.Where(n => n.IsSelected).ToArray();
_undoResizeCommand = new ResizeNodesToCurrentSizeCommand(_resizingNodes);
_undoPositionAdjustmentCommand = new MoveNodesToCurrentPositionCommand(_resizingNodes);
interaction.Diagram.ShowSnapGrid = true;
}
/// <inheritdoc/>
public override void StartInteraction(DiagramInteractionEventArguments interaction)
{
var diagram = interaction.Diagram;
var mousePosition = interaction.MousePosition;
RiftStartDiagramPoint = diagram.GetDiagramPointFromViewPoint(mousePosition);
Mode = RiftMode.None;
X = mousePosition.X;
Y = mousePosition.Y;
RiftWidth = 0;
RiftHeight = 0;
_undoRiftCommand = new MoveNodesToCurrentPositionCommand(_nodesBeingRifted);
}
/// <inheritdoc/>
public override void StopInteraction(DiagramInteractionEventArguments interaction)
{
if (!interaction.IsCtrlKeyPressed)
{
foreach (var node in _resizingNodes)
{
node.X = interaction.Diagram.SnapToGrid(node.X);
node.Y = interaction.Diagram.SnapToGrid(node.Y);
node.Width = interaction.Diagram.SnapToGrid(node.Width);
node.Height = interaction.Diagram.SnapToGrid(node.Height);
}
}
interaction.Diagram.ShowSnapGrid = false;
Mouse.SetCursor(Cursors.Arrow);
var resizeCommand = new ResizeNodesToCurrentSizeCommand(_resizingNodes);
var positionAdjustmentCommand = new MoveNodesToCurrentPositionCommand(_resizingNodes);
_transactor.Transact(resizeCommand, _undoResizeCommand);
_transactor.Transact(positionAdjustmentCommand, _undoPositionAdjustmentCommand);
}
/// <inheritdoc/>
public override void StopInteraction(DiagramInteractionEventArguments interaction)
{
Mode = RiftMode.None;
_lastRiftDeltaX = 0;
_lastRiftDeltaY = 0;
if (_nodesBeingRifted == null)
{
return;
}
if (!interaction.IsCtrlKeyPressed)
{
foreach (var node in _nodesBeingRifted)
{
node.X = interaction.Diagram.SnapToGrid(node.X);
node.Y = interaction.Diagram.SnapToGrid(node.Y);
}
}
var doRiftCommand = new MoveNodesToCurrentPositionCommand(_nodesBeingRifted);
_transactor.Transact(doRiftCommand, _undoRiftCommand, null);
_nodesBeingRifted = null;
}
