//TODO: Fix adorners not being drawn correctly after moving if scale != 1 or being redrawn on scale change
/// <summary>
/// Adds adorner to items in list
/// </summary>
/// <param name="modifiedList">List of item Points</param>
private void RenderAdorner(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.Action == NotifyCollectionChangedAction.Add && selectedItems.Count > 0)
{
ClearAdorner();
Point pos;
var item = Items[0];
if (selectedPos.Count > 1)
{
pos = LerpMath.CalculateAverage(selectedPos);
}
else
{
pos = selectedPos[0];
}
var myAdornerLayer = AdornerLayer.GetAdornerLayer(item);
RenderDragHandles(item, myAdornerLayer, camera.OffsetPosition(pos, true));
for (int i = 0; i < selectedPos.Count; i++)
{
for (int j = 0; j < Items.Count; j++)
{
if (Items[j] is Rectangle)
{
var listItem = Items[j];
Point itemPos = camera.OffsetPosition(new Point(Canvas.GetLeft(listItem), Canvas.GetTop(listItem)));
if (LerpMath.CalculateDelta(selectedPos[i].X, itemPos.X) <= 2.5 && LerpMath.CalculateDelta(selectedPos[i].Y, itemPos.Y) <= 2.5)
{
RenderSelection(listItem, AdornerLayer.GetAdornerLayer(item));
break;
}
}
}
}
}
else
{
ClearAdorner();
}
}
private void HandleSelection(object sender, MouseButtonEventArgs e)
{
//If rectangle hit
if (e.OriginalSource.GetType() == typeof(Rectangle))
{
if (selectedItems.Count > 0 && !_shift)
{
ClearItems();
}
Rectangle rect = (Rectangle)e.OriginalSource;
selectedPos.Add(camera.OffsetPosition(new Point(Canvas.GetLeft(rect), Canvas.GetTop(rect))));
if (rect != null && String.IsNullOrEmpty(rect.Name))
{
var myAdornerLayer = AdornerLayer.GetAdornerLayer(rect);
if (myAdornerLayer != null)
{
if (selectedPos.Count > 1)
{
Point avgPosition = LerpMath.CalculateAverage(selectedPos);
Point offset = LerpMath.CalculateDelta(
modelitems.Item.Curve[selectedItems[0].Item1].Points[selectedItems[0].Item2],
avgPosition,
true
);
}
else
{
RenderSelection(rect, myAdornerLayer);
}
var matches = Regex.Matches(rect.Tag.ToString(), "[0-9]{1,3}");
if (!Keyboard.IsKeyDown(Key.LeftShift) && !Keyboard.IsKeyDown(Key.RightShift))
{
ClearItems();
selectedPos.Add(camera.OffsetPosition(new Point(Canvas.GetLeft(rect), Canvas.GetTop(rect))));
}
selectedItems.Add(new Tuple <int, int>(Convert.ToInt32(matches[0].ToString()), Convert.ToInt32(matches[1].ToString())));
}
}
_shift = false;
}
//Drag selection
else if (_dragDropped && (3 * camera.GetScale) < LerpMath.CalculateDelta(dragOrigin[0], dragEnd[0]) ||
(3 * camera.GetScale) < LerpMath.CalculateDelta(dragOrigin[1], dragEnd[1]))
{
if ((DateTime.Now - _time).Milliseconds > 100)
{
if (!_shift)
{
ClearItems();
}
_shift = false;
for (int j = 0; j < modelitems.Item.Curve.Count; j++)
{
var list = modelitems.Item.Curve[j].Original;
double minX = (dragOrigin[0] < dragEnd[0]) ? dragOrigin[0] : dragEnd[0];
double minY = (dragOrigin[1] < dragEnd[1]) ? dragOrigin[1] : dragEnd[1];
double maxX = (dragOrigin[0] > dragEnd[0]) ? dragOrigin[0] : dragEnd[0];
double maxY = (dragOrigin[1] > dragEnd[1]) ? dragOrigin[1] : dragEnd[1];
for (int i = 0; i < _Canvas.Children.Count; i++)
{
if (_Canvas.Children[i] is Rectangle)
{
Rectangle rect = (Rectangle)_Canvas.Children[i];
if ((minX - 3) < Canvas.GetLeft(rect) && (maxX + 3) > Canvas.GetLeft(rect))
{
if ((minY - 3) < Canvas.GetTop(rect) && (maxY + 3) > Canvas.GetTop(rect))
{
var matches = Regex.Matches(rect.Tag.ToString(), "[0-9]{1,3}");
Tuple <int, int> curvePointNr = new Tuple <int, int>(Convert.ToInt32(matches[0].ToString()), Convert.ToInt32(matches[1].ToString()));
bool exists = false;
if (selectedItems.IndexOf(curvePointNr) != -1)
{
exists = true;
}
if (!exists)
{
selectedPos.Add(camera.OffsetPosition(new Point(Canvas.GetLeft(rect), Canvas.GetTop(rect))));
selectedItems.Add(curvePointNr);
dragOrigin[0] = Canvas.GetLeft(rect);
dragOrigin[1] = Canvas.GetTop(rect);
var myAdornerLayer = AdornerLayer.GetAdornerLayer(rect);
RenderSelection(rect, myAdornerLayer);
}
}
}
}
}
}
}
}
//Remove selection
else
{
ClearItems();
draggedItem = null;
}
}
public override void OnMouseDown(object sender, MouseButtonEventArgs e)
{
CheckModifier();
switch (GraphView_ToolHandler.ActiveTool)
{
//Select tool
case 0:
//Toolhandle
if (e.ChangedButton == MouseButton.Left && e.OriginalSource.GetType() == typeof(ToolAdorner))
{
ToolAdorner rect = (ToolAdorner)e.OriginalSource;
if (Regex.IsMatch(rect.Name, "(left)?(right)?(top)?(bottom)?"))
{
dragDirection = (rect.Name == "left" || rect.Name == "right") ? dragDirection = 1 : dragDirection = 2;
if (selectedPos.Count > 1)
{
Point origin = LerpMath.CalculateAverage(selectedPos);
dragOrigin[0] = origin.X;
dragOrigin[1] = origin.Y;
}
else
{
dragOrigin[0] = e.GetPosition(_Canvas).X;
dragOrigin[1] = e.GetPosition(_Canvas).Y;
}
draggedItem = rect;
return;
}
return;
}
//Drag select
if (e.ChangedButton == MouseButton.Left && !(e.OriginalSource.GetType() == typeof(Rectangle) &&
!(e.OriginalSource.GetType() == typeof(ToolAdorner))))
{
_DragSelection = true;
_time = DateTime.Now;
dragOrigin[0] = e.GetPosition(_Canvas).X;
dragOrigin[1] = e.GetPosition(_Canvas).Y;
return;
}
//move camera
if (_alt && e.ChangedButton == MouseButton.Middle)
{
_alt = false;
oldPosition = Mouse.GetPosition(Application.Current.MainWindow);
return;
}
//drag move
if (e.ChangedButton == MouseButton.Middle && selectedItems.Count > 0)
{
dragOrigin[2] = Mouse.GetPosition(Application.Current.MainWindow).X;
dragOrigin[3] = Mouse.GetPosition(Application.Current.MainWindow).Y;
MiddleMouseUsed = true;
return;
}
break;
//Insert Point Tool
case 1:
if (e.ChangedButton == MouseButton.Left)
{
Point pos = camera.OffsetPosition(e.GetPosition(_Canvas));
CurveGraphModel model = ModelItems;
// TODO: Need to find ways to separate curves from each other
//BezierCurve curve = model.Item.Curve;
//curve.InsertPoint(pos);
//Add(model);
}
break;
default:
break;
}
}