protected InteractiveHeaderedItem PrepareGroup(string title, IDrawableRectangle content)
{
#region Prepare Group Container
DrawableItemsStack headerPlus = new DrawableItemsStack();
DrawableItemsStack headerMinus = new DrawableItemsStack();
headerPlus.OrientationAxis = Axis.X;
headerMinus.OrientationAxis = Axis.X;
#endregion
#region Create Header
TextSegment titleSegment = new TextSegment(Graphics, title, GroupTitleFont, true);
PlusShape plus = new PlusShape();
plus.Border = 3;
headerPlus.Add(plus);
headerPlus.Add(titleSegment);
MinusShape minus = new MinusShape();
minus.Border = 3;
headerMinus.Add(minus);
headerMinus.Add(titleSegment);
DrawableItemsStack headerCollapsed = new DrawableItemsStack();
DrawableItemsStack headerExpanded = new DrawableItemsStack();
headerCollapsed.OrientationAxis = Axis.Z;
headerExpanded.OrientationAxis = Axis.Z;
headerCollapsed.Add(new DrawableRectangle(InnerTitlesBackground, null));
headerCollapsed.Add(headerPlus);
headerExpanded.Add(new DrawableRectangle(InnerTitlesBackground, null));
headerExpanded.Add(headerMinus);
#endregion
InteractiveHeaderedItem tg = new InteractiveHeaderedItem(headerCollapsed, headerExpanded, content);
tg.HeaderClicked += delegate { tg.Collapsed = !tg.Collapsed; };
IMouseInteractable interactive = content as IMouseInteractable;
if (interactive != null)
{
tg.ContentClicked += delegate(object sender, PointF pos) { interactive.HandleMouseClick(pos); }
}
;
tg.RedrawNeeded += HandleRedraw;
return(tg);
}
private IMouseInteractable GetMouseInteractionSource(Vector2 mousePosition)
{
IMouseInteractable source = null;
foreach (var socket in _canvas.GetSockets())
{
source = socket.Editor().IsMouseOver(mousePosition);
if (source != null)
{
return(source);
}
}
foreach (Node node in _canvas.Graph.NodeList)
{
source = node.Editor().IsMouseOver(mousePosition);
if (source != null)
{
return(source);
}
}
foreach (var edge in _canvas.Graph.Editor().Edges)
{
source = edge.Editor().IsMouseOver(mousePosition);
if (source != null)
{
return(source);
}
}
foreach (var @group in _canvas.Graph.GroupList)
{
source = @group.Editor().IsMouseOver(mousePosition);
if (source != null)
{
return(source);
}
}
return(null);
}
private void SetMouseInteractionSource()
{
_interactionSource = GetMouseInteractionSource(_mousePosition);
}
private void ProcessMouseEvents(Event currentEvent)
{
// set isInCanvas, mousePos
SetupMouseInfo();
if (!_isMouseInCanvas)
{
return;
}
switch (currentEvent.type)
{
// *********************************** Mouse Down
case EventType.MouseDown:
FollowMachineInspector.CloseAll();
// get interaction source
_interactionSource = GetMouseInteractionSource(_mousePosition);
if (_interactionSource == null)
{
if (currentEvent.button == 0)
{
_interactionSource = _canvas.BoxSelection;
}
else
{
_canvas.CreationMenu.Show(_mousePosition);
}
}
if (currentEvent.clickCount < 2)
{
_interactionSource?.MouseDown(_mousePosition, currentEvent);
}
else
{
_interactionSource?.DoubleClick(_mousePosition, currentEvent);
}
Event.current.Use();
break;
// *********************************** Mouse Drag
case EventType.MouseDrag:
_interactionSource?.MouseDrag(
currentEvent.delta / _canvas.Zoom,
_mousePosition,
currentEvent);
break;
// *********************************** Mouse Up
case EventType.MouseUp:
if (_interactionSource != null)
{
_interactionSource.MouseUp(_mousePosition, currentEvent);
_interactionSource = null;
}
break;
// *********************************** Mouse Move
case EventType.MouseMove:
// exit if mouse not in canvas
if (!_isMouseInCanvas)
{
return;
}
var source = GetMouseInteractionSource(_mousePosition);
if (source != _interactionSource)
{
source?.MouseEnter(_mousePosition, currentEvent);
_interactionSource?.MouseExit(_mousePosition, currentEvent);
_interactionSource = source;
}
source?.MouseMove(_mousePosition, currentEvent);
break;
// ******************************* Drag and drop
case EventType.DragUpdated:
if (_isMouseInCanvas)
{
_canvas.DropNode.Update(_mousePosition);
}
break;
case EventType.DragPerform:
if (_isMouseInCanvas)
{
_canvas.DropNode.Perform(_mousePosition);
}
break;
}
}