/// <summary>
/// Event handler for the NodeDoubleClickEvent
/// </summary>
/// <param name="args">Arguments for the event</param>
public void NodeDoubleClickEventHandler(NodeViewModelMouseEventArgs <System.Windows.Input.MouseButtonEventArgs> args)
{
if (NodeDoubleClicked != null)
{
NodeDoubleClicked(this, ScriptableNodeEventArgs.Create(args));
}
}
/// <summary>
/// Event handler for the NodeMouseLeaveEvent
/// </summary>
/// <param name="args">Arguments for the event</param>
public void NodeMouseLeaveEventHandler(NodeViewModelMouseEventArgs <System.Windows.Input.MouseEventArgs> args)
{
if (NodeMouseLeave != null)
{
NodeMouseLeave(this, ScriptableNodeEventArgs.Create(args));
}
}
/// <summary>
/// Handles the MouseLeftButtonDown event
/// </summary>
/// <param name="args">The arguments for the event</param>
public void NodeMouseLeftButtonDownEventHandler(NodeViewModelMouseEventArgs <MouseButtonEventArgs> args)
{
// Turn on node dragging if we are in node selection mode
if (!isPanMode)
{
isLeftButtonDown = true;
dragTargetNode = args.NodeViewModel;
isMouseDownHandled = true;
}
}
/// <summary>
/// Handles the NodeMouseEnter event
/// </summary>
/// <param name="args">The arguments for the event</param>
public void NodeMouseEnterEventHandler(NodeViewModelMouseEventArgs <MouseEventArgs> args)
{
// Positioning of the popup (the horizontal and vertical offsets) are
// handled by a Behavior on the view.
if (args.NodeViewModel.ParentNode != null && args.NodeViewModel.ParentNode.Attributes != null)
{
Show(args.NodeViewModel.ParentNode.Attributes.Select((record) => new KeyValuePair <string, string>(record.Key, record.Value.DisplayValue)));
}
else
{
Show(null);
}
}
/// <summary>
/// Handles the MouseRightButtonDown event for the Node
/// </summary>
/// <param name="args">Arguments for the event</param>
public void NodeMouseRightButtonDownEventHandler(NodeViewModelMouseEventArgs <MouseButtonEventArgs> args)
{
// Ensure that the context menu has not already been initialized
if (nodeContextMenu == null)
{
nodeContextMenu = new ContextMenu();
nodeContextMenu.ItemsSource = nodeMenuItems;
nodeContextMenu.Opening += new RoutedEventHandler(NodeContextMenuOpeningHandler);
nodeContextMenu.Closed += new RoutedEventHandler(NodeContextMenuClosedHandler);
}
// Save the NodeViewModel that the right click was on
targetNodeVM = args.NodeViewModel;
// Open the Node's ContextMenu
nodeContextMenu.OpenPopup(args.MouseArgs.GetPosition(null));
}
/// <summary>
/// Handles the NodeMouseMoveEvent
/// </summary>
/// <param name="args">The arguments for the event</param>
public void NodeMouseMoveEventHandler(NodeViewModelMouseEventArgs <MouseEventArgs> args)
{
// If the left mouse button is down while the mouse is being moved
// we can assume the user is dragging the node and shouldn't show
// the attribute popup
if (this.mouseLeftButtonDown)
{
if (IsOpen)
{
IsOpen = false;
}
else
{
this.openTimer.Stop();
}
}
}
/// <summary>
/// Event handler for the NodeDoubleClickEvent
/// </summary>
/// <param name="args">Arguments for the event</param>
public void NodeDoubleClickEventHandler(NodeViewModelMouseEventArgs<System.Windows.Input.MouseButtonEventArgs> args)
{
if (NodeDoubleClicked != null)
{
NodeDoubleClicked(this, ScriptableNodeEventArgs.Create(args));
}
}
/// <summary>
/// Handles the MouseRightButtonDown event for the Node
/// </summary>
/// <param name="args">Arguments for the event</param>
public void NodeMouseRightButtonDownEventHandler(NodeViewModelMouseEventArgs<MouseButtonEventArgs> args)
{
// Ensure that the context menu has not already been initialized
if (nodeContextMenu == null)
{
nodeContextMenu = new ContextMenu();
nodeContextMenu.ItemsSource = nodeMenuItems;
nodeContextMenu.Opening += new RoutedEventHandler(NodeContextMenuOpeningHandler);
nodeContextMenu.Closed += new RoutedEventHandler(NodeContextMenuClosedHandler);
}
// Save the NodeViewModel that the right click was on
targetNodeVM = args.NodeViewModel;
// Open the Node's ContextMenu
nodeContextMenu.OpenPopup(args.MouseArgs.GetPosition(null));
}
public void OnNodeMouseMove(NodeViewModelMouseEventArgs <MouseEventArgs> eventArgs)
{
Events.Add(string.Format("NodeMoved - {0}", eventArgs.NodeViewModel.ParentNode.ID));
}
public void OnNodeMouseLeftButtonDown(NodeViewModelMouseEventArgs <MouseButtonEventArgs> eventArgs)
{
Events.Add(string.Format("NodeMouseLeftButtonDown - {0}", eventArgs.NodeViewModel.ParentNode.ID));
}
public void OnNodeMouseMove(NodeViewModelMouseEventArgs<MouseEventArgs> eventArgs)
{
Events.Add(string.Format("NodeMoved - {0}", eventArgs.NodeViewModel.ParentNode.ID));
}
/// <summary>
/// Handles the NodeMouseLeftButtonUp event
/// </summary>
/// <param name="args">The arguments for the event</param>
public void NodeMouseLeftButtonUpEventHandler(NodeViewModelMouseEventArgs <MouseButtonEventArgs> args)
{
// Update the flag that indicates the state of the left
// mouse button on the node
this.mouseLeftButtonDown = false;
}
/// <summary>
/// Event handler to handle when a node is clicked
/// </summary>
/// <param name="eventArgs">Any event arguments that might be passed</param>
public void OnNodeMouseLeftButtonUp(NodeViewModelMouseEventArgs<MouseButtonEventArgs> eventArgs)
{
Events.Add(string.Format("NodeMouseLeftButtonUp - {0}", eventArgs.NodeViewModel.ParentNode.ID));
}
/// <summary>
/// Handles the NodeDoubleClick event
/// </summary>
/// <param name="args">The arguments for the event</param>
public void NodeDoubleClickEventHandler(NodeViewModelMouseEventArgs<MouseButtonEventArgs> args)
{
CollapseOrExpandNode(args.NodeViewModel);
}
/// <summary>
/// Handles the NodeMouseLeftButtonUp event
/// </summary>
/// <param name="args">The arguments for the event</param>
public void NodeMouseLeftButtonUpEventHandler(NodeViewModelMouseEventArgs<MouseButtonEventArgs> args)
{
// Update the flag that indicates the state of the left
// mouse button on the node
this.mouseLeftButtonDown = false;
}
/// <summary>
/// Handles the NodeMouseLeave event
/// </summary>
/// <param name="args">The arguments for the event</param>
public void NodeMouseLeaveEventHandler(NodeViewModelMouseEventArgs<MouseEventArgs> args)
{
Close();
}
/// <summary>
/// Handles the NodeMouseEnter event
/// </summary>
/// <param name="args">The arguments for the event</param>
public void NodeMouseEnterEventHandler(NodeViewModelMouseEventArgs<MouseEventArgs> args)
{
// Positioning of the popup (the horizontal and vertical offsets) are
// handled by a Behavior on the view.
if (args.NodeViewModel.ParentNode != null && args.NodeViewModel.ParentNode.Attributes != null)
{
Show(args.NodeViewModel.ParentNode.Attributes.Select((record) => new KeyValuePair<string, string>(record.Key, record.Value.DisplayValue)));
}
else
{
Show(null);
}
}
/// <summary>
/// Raises the NodeMouseMove event
/// </summary>
/// <param name="e">The event arguments</param>
protected virtual void OnNodeMouseMove(NodeViewModelMouseEventArgs <MouseEventArgs> args)
{
this.eventAggregator.GetEvent <NodeMouseMoveEvent>().Publish(args);
}
/// <summary>
/// Event handler for the NodeMouseLeaveEvent
/// </summary>
/// <param name="args">Arguments for the event</param>
public void NodeMouseLeaveEventHandler(NodeViewModelMouseEventArgs<System.Windows.Input.MouseEventArgs> args)
{
if (NodeMouseLeave != null)
{
NodeMouseLeave(this, ScriptableNodeEventArgs.Create(args));
}
}
/// <summary>
/// Raises the NodeMouseMove event
/// </summary>
/// <param name="e">The event arguments</param>
protected virtual void OnNodeMouseMove(NodeViewModelMouseEventArgs<MouseEventArgs> args)
{
this.eventAggregator.GetEvent<NodeMouseMoveEvent>().Publish(args);
}
/// <summary>
/// Handles the NodeDoubleClick event
/// </summary>
/// <param name="args">The arguments for the event</param>
public void NodeDoubleClickEventHandler(NodeViewModelMouseEventArgs <MouseButtonEventArgs> args)
{
CollapseOrExpandNode(args.NodeViewModel);
}
/// <summary>
/// Handles the MouseLeftButtonUp event
/// </summary>
/// <param name="args">The arguments for the event</param>
public void NodeMouseLeftButtonUpEventHandler(NodeViewModelMouseEventArgs <MouseButtonEventArgs> args)
{
// Only allow node manipulation if we are not in pan mode
if (!isPanMode)
{
NodeSelector nodeSelector = GraphManager.Instance.DefaultGraphComponentsInstance.NodeSelector;
// Check if we were dragging the node
if (isNodeDragging)
{
// Turn off node dragging
isNodeDragging = false;
dragTargetNode = null;
}
else
{
// Check if any nodes are currently selected
if (nodeSelector.AreAnyNodesSelected)
{
// Check if Control is pressed
if ((Keyboard.Modifiers & ModifierKeys.Alt) > 0)
{
nodeSelector.InvertSelection();
}
else
{
// Check if multiple nodes are selected
if (nodeSelector.AreMultipleNodesSelected)
{
// Check if target node is already selected
if (nodeSelector.SelectedNodes.Contains(args.NodeViewModel))
{
// Check if Control is pressed
if ((Keyboard.Modifiers & ModifierKeys.Control) > 0)
{
nodeSelector.Unselect(args.NodeViewModel);
return;
}
else
{
nodeSelector.UnselectAll();
}
}
else // Target node is not selected
{
// Check if Control is pressed
if ((Keyboard.Modifiers & ModifierKeys.Control) == 0)
{
nodeSelector.UnselectAll();
}
}
}
else // Only one node is selected
{
// Check if the target node is already selected
if (nodeSelector.SelectedNode.Equals(args.NodeViewModel))
{
nodeSelector.Unselect(nodeSelector.SelectedNode);
return;
}
else // Target node is not selected
{
// Check if Control is pressed
if ((Keyboard.Modifiers & ModifierKeys.Control) == 0)
{
nodeSelector.Unselect(nodeSelector.SelectedNode);
}
}
}
}
}
// Set the SELECTED state of the clicked node
nodeSelector.Select(args.NodeViewModel);
}
}
}
/// <summary>
/// Handles the NodeMouseMoveEvent
/// </summary>
/// <param name="args">The arguments for the event</param>
public void NodeMouseMoveEventHandler(NodeViewModelMouseEventArgs<MouseEventArgs> args)
{
// If the left mouse button is down while the mouse is being moved
// we can assume the user is dragging the node and shouldn't show
// the attribute popup
if (this.mouseLeftButtonDown)
if (IsOpen)
IsOpen = false;
else
this.openTimer.Stop();
}
/// <summary>
/// Handles the NodeMouseLeave event
/// </summary>
/// <param name="args">The arguments for the event</param>
public void NodeMouseLeaveEventHandler(NodeViewModelMouseEventArgs <MouseEventArgs> args)
{
Close();
}
