protected override void OnMouseUp(MouseButtonEventArgs e)
{
//logger.Info("Entered");
base.OnMouseUp(e);
var window = (MainWindow)Window.GetWindow(this);
if (DragModule == null)
{
return;
}
CanvasModule module = DragModule;
Children.Remove(DragModule);
if (window.TabControl.SelectedItem == null)
{
return;
}
// Modules are only allowed to be dropped on the workflow canvas
// So if it's not being dropped there, let it fall out of scope
var tabController = (TabControl)window.FindName("TabControl");
var wfCanvas = ((WorkflowScrollViewer)tabController.SelectedContent).ChildCanvas;
if (VisualHelper.IsMouseOver(wfCanvas, this))
{
wfCanvas.Children.Add(module);
}
//logger.Info("Leaving");
}
/// <summary>
/// Sets the canvas module position relative to this canvas instance.
/// </summary>
/// <param name="module">The child module to move.</param>
/// <param name="pos">The relative position.</param>
public void SetCanvasModulePos(CanvasModule module, Point pos)
{
Rect viewport = VisualHelper.GetBoundingBox(this);
Rect bbox = VisualHelper.GetBoundingBox(module);
if (bbox.BottomRight.Y + pos.Y > viewport.Bottom)
{
pos.Y = viewport.Bottom - bbox.Bottom;
}
if (bbox.BottomRight.X + pos.X > viewport.Right)
{
pos.X = viewport.Right - bbox.Right;
}
if (pos.Y < 0)
{
pos.Y = 0;
}
if (pos.X < 0)
{
pos.X = 0;
}
// logger.Trace($"Setting Module_Position ({pos.X},{pos.Y}) Module= {module.DisplayName}");
SetLeft(module, pos.X);
SetTop(module, pos.Y);
SetZIndex(module, 1);
}
private void OnConnectedModuleMove(CanvasModule module)
{
foreach (var connection in Connections)
{
if (connection.ContainsModuleVisual(module))
{
RedrawLine(connection);
}
}
}
public void ReadXml(XmlReader reader)
{
if (reader.Name != "WorkflowCanvas")
{
reader.ReadToFollowing("WorkflowCanvas");
}
XmlInProgress = true;
double zoom = double.Parse(reader.GetAttribute("Zoom"));
// CanvasModules
reader.ReadToDescendant("CanvasModules");
var moduleParent = reader.ReadSubtree();
moduleParent.MoveToContent();
XElement xModules = XElement.ReadFrom(moduleParent) as XElement;
int count = int.Parse(xModules.Attribute("Count").Value);
foreach (var xCanvasModule in xModules.XPathSelectElements("//CanvasModule"))
{
logger.Trace("Loading canvas_module {0}", xCanvasModule.Attribute("Name").Value);
CanvasModule module = new CanvasModule();
module.ReadXml(xCanvasModule.CreateReader());
Children.Add(module);
}
reader.Skip();
// Connections
if (reader.IsStartElement("Connections"))
{
count = int.Parse(reader.GetAttribute("Count"));
if (count > 0)
{
reader.ReadStartElement();
for (int i = 0; i < count; i++)
{
AddConnectionFromXml(Connection.ReadXml(reader));
reader.ReadEndElement();
}
reader.Skip();
}
else
{
reader.Skip();
}
}
ScaleTransform scale = LayoutTransform as ScaleTransform;
scale.ScaleX = zoom;
scale.ScaleY = zoom;
}
public bool ContainsModuleVisual(CanvasModule canvasModule)
{
if (Start.Parent == canvasModule)
{
return(true);
}
else if (End.Parent == canvasModule)
{
return(true);
}
return(false);
}
private void OnRemoveCanvasModule(CanvasModule module)
{
module.OnNodeStartConnectionLine -= StartConnection;
// Safe to just disconnect all nodes on the module instead of the
// connection, as it disconnects on both ends anyway.
module.Module.Disconnect();
// Check each connection entry and remove the one that doesn't have
// active connections
PruneDeadConnections();
AdjustModuleDisplayNames();
}
private void OnAddCanvasModule(CanvasModule module)
{
string dataDir = Properties.Settings.Default.data_folder;
if (dataDir.Last() != System.IO.Path.DirectorySeparatorChar)
{
dataDir += System.IO.Path.DirectorySeparatorChar;
}
module.Module.DataDir = dataDir;
ValidateDataFolder();
module.WfCanvas = this;
module.Scroller = Scroller;
module.OnNodeStartConnectionLine += StartConnection;
SetCanvasModulePos(module, Mouse.GetPosition(this));
SetZIndex(module, 1);
if (!XmlInProgress)
{
AdjustModuleDisplayNames();
}
}
private void OnRemoveCanvasModule(CanvasModule module)
{
logger.Info("DragModule=null");
DragModule = null;
}
private void OnAddCanvasModule(CanvasModule module)
{
DragModule = module;
logger.Trace($"Setting DragModule={module.Module.DisplayName}");
//logger.Info("DragModule={0}", module.DisplayName.Text);
}
public RenderNode(CanvasModule parent, Ellipse shape, INode node)
{
Parent = parent;
Visual = shape;
Node = node;
}