void VisualCanvas_MouseMove(object sender, System.Windows.Input.MouseEventArgs e)
{
if (e.LeftButton == MouseButtonState.Released || NewCanvasItem == null)
{
return;
}
if (IsDragStart)
{
CurrentMousePoint = e.GetPosition(sender as IInputElement);
Debug.WriteLine(CurrentMousePoint);
var x = Math.Min(CurrentMousePoint.X, StartMousePoint.X);
var y = Math.Min(CurrentMousePoint.Y, StartMousePoint.Y);
var width = Math.Max(CurrentMousePoint.X, StartMousePoint.X) - x;
var height = Math.Max(CurrentMousePoint.Y, StartMousePoint.Y) - y;
NewCanvasItem.SetCurrentValue(FrameworkElement.WidthProperty, width);
NewCanvasItem.SetCurrentValue(FrameworkElement.HeightProperty, height);
Canvas.SetLeft(NewCanvasItem, x);
Canvas.SetTop(NewCanvasItem, y);
IEditableCollectionViewAddNewItem items = this.Items;
items.CommitEdit();
}
}
void VisualCanvas_MouseLeftButtonUp(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
if (IsDragStart)
{
IsDragStart = false;
if (MinItemWidth != Double.NaN && (Double)NewCanvasItem.GetValue(FrameworkElement.WidthProperty) < MinItemWidth)
{
NewCanvasItem.SetCurrentValue(FrameworkElement.WidthProperty, MinItemWidth);
}
if (MinItemHeight != Double.NaN && (Double)NewCanvasItem.GetValue(FrameworkElement.HeightProperty) < MinItemHeight)
{
NewCanvasItem.SetCurrentValue(FrameworkElement.HeightProperty, MinItemHeight);
}
IEditableCollectionViewAddNewItem items = this.Items;
items.CommitEdit();
NewItem = null;
NewCanvasItem = null;
e.Handled = true;
Mouse.Capture(this, CaptureMode.None);
}
}
