private void Rec_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
NewCanvas temp = sender as NewCanvas;
// Clone selected item
DraggedItem = temp.Clone();
// Add event handler
DraggedItem.MouseLeftButtonUp += new MouseButtonEventHandler(Rec_MouseLeftButtonUp);
DraggedItem.MouseMove += new System.Windows.Input.MouseEventHandler(Rec_MouseMove);
// Add to parent element
//Console.WriteLine(DraggedItem.Parent);
// Move clone to RootCanvas
// Group_Basic.Children.Add(DraggedItem);
var canvas = temp.Parent as Canvas;
//var grid = canvas.Parent as Border;
RecPos.X = (Double)DraggedItem.GetValue(Canvas.LeftProperty) +
(Double)canvas.Parent.GetValue(Canvas.LeftProperty) + (Double)Canvas1.GetValue(Canvas.LeftProperty);
RecPos.Y = (Double)DraggedItem.GetValue(Canvas.TopProperty) +
(Double)canvas.Parent.GetValue(Canvas.TopProperty) + (Double)Canvas1.GetValue(Canvas.TopProperty) + Define.YPosOffset_OnDragging;
DraggedItem.SetValue(Canvas.TopProperty, RecPos.Y);
DraggedItem.SetValue(Canvas.LeftProperty, RecPos.X);
//Console.WriteLine("(x, y) = (" + RecPos.X + ", " + RecPos.Y + ")");
RootCanvas.Children.Add(DraggedItem);
// drag setup
MousePos = e.GetPosition(null);
PosDelta.X = RecPos.X - MousePos.X;
PosDelta.Y = RecPos.Y - MousePos.Y;
IsDragging = true;
// Update log
Console.WriteLine(DateTime.Now.ToString() + " : Start dragging <" + DraggedItem.Name + ">");
}
private void Rec_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
if (!IsDragging)
{
return;
}
// Get the position on Canvas2
DraggedItem.SetValue(Canvas.LeftProperty, (Double)DraggedItem.GetValue(Canvas.LeftProperty) -
(Double)Canvas2.GetValue(Canvas.LeftProperty));
DraggedItem.SetValue(Canvas.TopProperty, (Double)DraggedItem.GetValue(Canvas.TopProperty) -
(Double)Canvas2.GetValue(Canvas.TopProperty));
// Item is on Canvas2 or not
if ((Double)DraggedItem.GetValue(Canvas.LeftProperty) > 0 &&
(Double)DraggedItem.GetValue(Canvas.TopProperty) > 0)
{
IsInArea = true;
}
else
{
IsInArea = false;
}
// Position is legal or not
if (IsInArea && (IsEmpty || IsAnchored))
{
// Add to Canvas2
if (IsEmpty)
{
IsEmpty = false;
DraggedItem.AnchorPointType = Anchors.AnchorType_FirstBlock;
}
else
{
DraggedItem.AnchorPointType = AnchorIndex;
}
RootCanvas.Children.Remove(DraggedItem);
Canvas2.Children.Add(DraggedItem);
Console.WriteLine(DateTime.Now.ToString() + " : Move <" + DraggedItem.Name + "> to <Canvas2>");
NewCanvasList.Add(DraggedItem);
Console.WriteLine(DateTime.Now.ToString() + " : Add <" + DraggedItem.Name + "> to List");
// If is not anchored at the right anchor point
if (AnchorIndex != (Define.AnchorNum - 1))
{
// Update anchor point
Anchor[1].X = (Double)DraggedItem.GetValue(Canvas.LeftProperty) +
(Double)Canvas2.GetValue(Canvas.LeftProperty);
Anchor[1].Y = (Double)DraggedItem.GetValue(Canvas.TopProperty) +
(Double)Canvas2.GetValue(Canvas.TopProperty) + DraggedItem.Height + Anchors.VerticalMargin;
Anchor[0].X = Anchor[1].X - Anchors.Indent;
Anchor[0].Y = Anchor[1].Y;
Anchor[2].X = Anchor[1].X + Anchors.Indent;
Anchor[2].Y = Anchor[1].Y;
Anchor[3].X = (Double)DraggedItem.GetValue(Canvas.LeftProperty) +
(Double)Canvas2.GetValue(Canvas.LeftProperty) + DraggedItem.Width + Anchors.HorizontalMargin;
Anchor[3].Y = (Double)DraggedItem.GetValue(Canvas.TopProperty) +
(Double)Canvas2.GetValue(Canvas.TopProperty);
Console.WriteLine(DateTime.Now.ToString() + " : Update anchor points");
}
}
else
{
// Delete illegal item
Console.WriteLine(DateTime.Now.ToString() + " : Illegal placement. Delete <" + DraggedItem.Name + ">");
RootCanvas.Children.Remove(DraggedItem);
DraggedItem = null;
}
IsDragging = false;
// Update log
Console.WriteLine(DateTime.Now.ToString() + " : Finish dragging");
}
