public override void MouseDownHandler(object sender, MouseButtonEventArgs e)
{
if (e.ChangedButton == MouseButton.Left)
{
if (e.OriginalSource is FrameworkElement element)
{
if (element.Parent is NodeBubble bubble)
{
this.ClickCount++;
if (this.ClickCount == 1)
{
this.StartNode = bubble;
this.PhantomArrow.StartPoint = bubble.Position;
MainWindow.Current.MyCanvas.Children.Add(this.PhantomArrow);
}
else
{
if (bubble != this.StartNode)
{
this.EndNode = bubble;
}
}
}
}
// TODO: use status bar to show this info.
}
}
public override void MouseDownHandler(object sender, MouseButtonEventArgs e)
{
if (e.ChangedButton == MouseButton.Left)
{
if (e.OriginalSource is FrameworkElement element)
{
if (element.Parent is NodeBubble bubble)
{
this.BubbleToMove = bubble;
}
}
}
}
public override void MouseUpHandler(object sender, MouseButtonEventArgs e)
{
if (e.ChangedButton == MouseButton.Left)
{
if (this.ClickCount >= 2)
{
if (this.StartNode != null && this.EndNode != null)
{
if (!MainWindow.Current.Arrows.ContainsKeys(this.StartNode.NodeID, this.EndNode.NodeID))
{
var link = new FlowLink
{
From = this.StartNode.NodeID,
To = this.EndNode.NodeID,
Label = string.Empty
};
var arrow = new BezierLink
{
StartPoint = this.StartNode.Position,
EndPoint = this.EndNode.Position,
StartOffset = DataManager.NodeSize / 2,
EndOffset = DataManager.NodeSize / 2,
Tag = (link.From, link.To)
};
Canvas.SetZIndex(arrow, 100);
arrow.ReadyControl();
MainWindow.Current.MyCanvas.Children.Add(arrow);
MainWindow.Current.Arrows.Add(link.From, link.To, arrow);
DataManager.CurrentDocument.LinksStore.Add(link.From, link.To, link);
}
this.ClickCount = 0;
this.StartNode = null;
this.EndNode = null;
MainWindow.Current.MyCanvas.Children.Remove(this.PhantomArrow);
}
}
}
}
public override void MouseDownHandler(object sender, MouseButtonEventArgs e)
{
if (e.ChangedButton == MouseButton.Left)
{
var clickPoint = e.GetPosition(MainWindow.Current.MyCanvas);
if (MainWindow.Current.GridToggleSwitch.IsChecked == true)
{
clickPoint = MainWindow.Current.GridLines.Snap(clickPoint);
}
var node = new FlowNode
{
ID = Guid.NewGuid(),
Name = "New node",
Metadata = new FlowElementMetadata
{
Left = clickPoint.X,
Top = clickPoint.Y
},
Properties = new JObject
{
{ "role", string.Empty },
{ "user", string.Empty }
}
};
var bubble = new NodeBubble
{
NodeID = node.ID,
Text = node.Name,
Position = clickPoint
};
Canvas.SetZIndex(bubble, 100);
bubble.ReadyControl();
MainWindow.Current.MyCanvas.Children.Add(bubble);
MainWindow.Current.Bubbles.Add(node.ID, bubble);
DataManager.CurrentDocument.NodesStore.Add(node.ID, node);
}
}
public override void MouseUpHandler(object sender, MouseButtonEventArgs e)
{
if (e.ChangedButton == MouseButton.Left)
{
if (this.BubbleToMove != null)
{
if (MainWindow.Current.GridToggleSwitch.IsChecked == true)
{
this.BubbleToMove.Position = MainWindow.Current.GridLines.Snap(this.BubbleToMove.Position);
this.BubbleToMove.ReadyControl();
this.UpdateAllLinks(this.BubbleToMove.Position);
}
var node = DataManager.CurrentDocument.NodesStore[this.BubbleToMove.NodeID];
node.Metadata.Left = this.BubbleToMove.Position.X;
node.Metadata.Top = this.BubbleToMove.Position.Y;
}
this.BubbleToMove = null;
}
}
