public override void ProcessInteraction(DiagramInteractionEventArguments interaction)
{
if (interaction.Type == InteractionType.KeyUp)
{
_shouldStopInteraction = true;
}
}
public override void ProcessInteraction(DiagramInteractionEventArguments interaction)
{
if (interaction.ViewModelUnderMouse is Wire wire)
{
wire.DisconnectWire();
interaction.Diagram.RemoveWire(wire);
}
}
/// <summary>
/// Adds a node to the diagram interactively, allowing the user to move the mouse and click to choose the final position for the node.
/// </summary>
/// <param name="node">The node to add.</param>
public void AddNodeInteractively(Node node)
{
AddNode(node);
var interaction = new DiagramInteractionEventArguments(InteractionType.NodeInserted);
DiagramInteractionManager.HandleDiagramInput(interaction, this);
}
/// <inheritdoc/>
public override bool ShouldStartInteraction(DiagramInteractionEventArguments interaction)
{
return(interaction.Type == InteractionType.KeyDown &&
!interaction.IsAltKeyPressed &&
!interaction.IsShiftKeyPressed &&
interaction.IsCtrlKeyPressed &&
interaction.Key == System.Windows.Input.Key.Left);
}
private void KeyInputHandler(KeyEventArgs e, InteractionType type)
{
var interaction = new DiagramInteractionEventArguments(type)
{
Key = e.Key
};
DiagramInteractionManager.HandleDiagramInput(interaction, this);
}
private void KeyInputHandler(IInputElement sender, KeyEventArgs e, InteractionType type)
{
var mousePosition = Mouse.GetPosition(sender);
var interaction = new DiagramInteractionEventArguments(type)
{
MousePosition = mousePosition,
Key = e.Key
};
DiagramInteractionManager.HandleDiagramInput(interaction, this);
}
public override void StartInteraction(DiagramInteractionEventArguments interaction)
{
if (interaction.ViewModelUnderMouse is IMouseEnterLeaveReaction reaction)
{
if (reaction != ReactionMouseIsCurrentlyIn)
{
ReactionMouseIsCurrentlyIn?.MouseLeft();
ReactionMouseIsCurrentlyIn = reaction;
ReactionMouseIsCurrentlyIn.MouseEntered();
}
}
}
public void AddNode(Node node)
{
if (node.Model == null)
{
throw new InvalidOperationException("Can not add a node to the diagram before it has been initialized");
}
Model.AddNode(node.Model);
AddNodeViewModel(node);
var interaction = new DiagramInteractionEventArguments(InteractionType.NodeInserted);
DiagramInteractionManager.HandleDiagramInput(interaction, this);
}
private void MouseInputHandler(object sender, MouseEventArgs e, InteractionType interactionType)
{
var relativeMousePosition = e.GetPosition((IInputElement)sender);
var interaction = new DiagramInteractionEventArguments(interactionType)
{
MousePosition = relativeMousePosition
};
if (e is MouseWheelEventArgs mouseWheelEventArguments)
{
interaction.MouseWheelDelta = mouseWheelEventArguments.Delta;
}
DiagramInteractionManager.HandleDiagramInput(interaction, this);
}
public override void ProcessInteraction(DiagramInteractionEventArguments interaction)
{
var diagram = interaction.Diagram;
var mousePosition = interaction.MousePosition;
var diagramStartX = diagram.GetDiagramPointFromViewPointX(mousePosition.X);
var diagramStartY = diagram.GetDiagramPointFromViewPointY(mousePosition.Y);
var zoom = interaction.MouseWheelDelta > 0 ? 1.0 + ZoomAmount : 1.0 - ZoomAmount;
var newZoom = diagram.Zoom * zoom;
SetZoom(diagram, newZoom);
var diagramEndX = diagram.GetDiagramPointFromViewPointX(mousePosition.X);
var diagramEndY = diagram.GetDiagramPointFromViewPointY(mousePosition.Y);
diagram.PanX -= diagramStartX - diagramEndX;
diagram.PanY -= diagramStartY - diagramEndY;
}
/// <inheritdoc/>
public override void ProcessInteraction(DiagramInteractionEventArguments interaction)
{
}
public override void StartInteraction(DiagramInteractionEventArguments interaction)
{
X = (interaction.Diagram.ViewWidth / 2) - 250;
Y = (interaction.Diagram.ViewHeight / 2) - 200;
_shouldStopInteraction = false;
}
public override bool ShouldStartInteraction(DiagramInteractionEventArguments interaction)
{
return(interaction.Type == InteractionType.KeyDown && interaction.Key == System.Windows.Input.Key.Oem2);
}
/// <inheritdoc/>
public override void ProcessInteraction(DiagramInteractionEventArguments interaction)
{
interaction.Diagram.RequestClose();
}
/// <inheritdoc/>
public override bool ShouldStopInteraction(DiagramInteractionEventArguments interaction)
{
return(true);
}
/// <inheritdoc/>
public override bool ShouldStopInteraction(DiagramInteractionEventArguments interaction)
{
return(interaction.Type == InteractionType.MouseMoved);
}
/// <inheritdoc/>
public override void StopInteraction(DiagramInteractionEventArguments interaction)
{
}
public override bool ShouldStartInteraction(DiagramInteractionEventArguments interaction)
{
return(interaction.Type == InteractionType.LeftMouseDown &&
interaction.IsCtrlKeyPressed &&
interaction.ViewModelUnderMouse is Wire wire);
}