private void MouseDownObject(MouseButtonEventArgs e)
{
if (focusedObject != TargetObject(e))
{
focusedObject = TargetObject(e);
OnPropertyChanged("ClassName");
if (State != EMainViewModel.AddingLine)
{
Message = focusedObject.ToString() + " was selected.";
}
return;
}
if (focusedObject is IShape)
{
var shape = focusedObject as IShape;
if (shape is Dot && (shape as Dot).attachedClass != null)
{
return;
}
initialMousePosition = RelativeMousePosition();
initialObjectPosition = new Point(shape.X, shape.Y);
e.MouseDevice.Target.CaptureMouse();
State = EMainViewModel.MovingObject;
}
}
private void AddArrow()
{
State = EMainViewModel.AddingLine;
addingLineType = ELine.Arrow;
focusedObject = null;
Message = "Select first dot.";
}
private void MouseLeftButtonUp(MouseButtonEventArgs e)
{
// Point p = e.GetPosition(Application.Current.MainWindow.FindName("MainCanvas") as Grid);
Point p = RelativeMousePosition();
if (State == EMainViewModel.AddingDot)
{
e.Handled = true;
State = EMainViewModel.Null;
if (!MouseInCanvas())
{
return;
}
// TODO Break line by dropping dot on line. Needs its own Command class.
//var visualElement = TargetObject(e);
//if (visualElement is Line)
//{
// var line = visualElement as Line;
// AddAndExecute(new AddDotCommand(Dots, new Dot() { CanvasCenterX = p.X, CanvasCenterY = p.Y }));
// var dot = Dots.Last();
// if (line.Style == ELine.Dashed)
// AddAndExecute(new AddLineCommand(Lines, new Line() { From = line.From, To = dot, Style = ELine.Dashed }));
// else
// AddAndExecute(new AddLineCommand(Lines, new Line() { From = line.From, To = dot, Style = ELine.Solid }));
// AddAndExecute(new AddLineCommand(Lines, new Line() { From = dot, To = line.To, Style = line.Style }));
// AddAndExecute(new RemoveLineCommand(Lines, line));
//}
//else
AddAndExecute(new AddDotCommand(Dots, new Dot()
{
CanvasCenterX = p.X, CanvasCenterY = p.Y
}));
Message = "Dot added.";
}
else if (State == EMainViewModel.AddingClass)
{
e.Handled = true;
State = EMainViewModel.Null;
if (!MouseInCanvas())
{
return;
}
AddAndExecute(new AddClassCommand(Classes, new Class()
{
CanvasCenterX = p.X, CanvasCenterY = p.Y, Style = addingClassType, Name = "Unnamed " + addingClassType
}, Dots));
Message = addingClassType + " was added.";
}
else if (State == EMainViewModel.AddingLine && !(TargetObject(e) is Dot) && MouseInCanvas())
{
e.Handled = true;
focusedObject = null;
State = EMainViewModel.Null;
Message = "Adding line failed.";
}
}
private void MouseUpObject(MouseButtonEventArgs e)
{
var shape = focusedObject as IShape;
var mousePosition = RelativeMousePosition();
if (State == EMainViewModel.AddingLine)
{
if (focusedObject is Dot)
{
if (addingLineFrom == null)
{
addingLineFrom = focusedObject as Dot;
Message = "Select second dot.";
return;
}
else if (addingLineFrom != focusedObject as Dot)
{
AddAndExecute(new AddLineCommand(Lines, new Line()
{
From = addingLineFrom, To = focusedObject as Dot, Style = addingLineType
}));
Message = "Line added.";
}
}
focusedObject = null;
addingLineFrom = null;
e.Handled = true;
State = EMainViewModel.Null;
}
else if (Mouse.Captured != null && State == EMainViewModel.MovingObject)
{
shape.X = initialObjectPosition.X;
shape.Y = initialObjectPosition.Y;
e.MouseDevice.Target.ReleaseMouseCapture();
State = EMainViewModel.Null;
if (MouseInCanvas())
{
AddAndExecute(new MoveShapeCommand(shape, mousePosition.X - initialMousePosition.X, mousePosition.Y - initialMousePosition.Y));
}
else
{
shape.OnMoveEnd();
Message = "Shape was out of bounds.";
}
}
}
private void DragAndDropEnumeration()
{
State = EMainViewModel.AddingClass;
addingClassType = EClass.Enumeration;
Message = "Drag enumeration into canvas.";
}
private void DragAndDropAbstract()
{
State = EMainViewModel.AddingClass;
addingClassType = EClass.Abstract;
Message = "Drag abstract into canvas.";
}
private void DragAndDropInterface()
{
State = EMainViewModel.AddingClass;
addingClassType = EClass.Interface;
Message = "Drag interface into canvas.";
}
private void DragAndDropClass()
{
State = EMainViewModel.AddingClass;
addingClassType = EClass.Class;
Message = "Drag class into canvas.";
}
private void DragAndDropDot()
{
State = EMainViewModel.AddingDot;
Message = "Drag dot into canvas.";
}
