/// <summary>
/// Handles the mouse up event.
/// </summary>
/// <param name="position">Mouse position.</param>
/// <param name="e">MouseEventArgs as provided by the view.</param>
/// <returns>The next mouse state handler that should handle mouse events.</returns>
public override void OnMouseUp(PointD2D position, MouseButtonEventArgs e)
{
base.OnMouseUp(position, e);
if (e.LeftButton == MouseButtonState.Released && null != _rectangleSelectionArea_GraphCoordinates)
{
_grac.FindGraphObjectInRootLayerRectangle(_rectangleSelectionArea_GraphCoordinates.Value, out var foundObjects);
AddSelectedObjectsFromRectangularSelection(foundObjects);
(_grac.ViewObject as IGraphView).ReleaseCaptureMouseOnCanvas();
_rectangleSelectionArea_GraphCoordinates = null;
_grac.RenderOverlay();
}
else if (ActiveGrip != null)
{
bool bRefresh = _wereObjectsMoved; // repaint the graph when objects were really moved
bool bRepaint = false;
_wereObjectsMoved = false;
_grac.Doc.Resume(ref _graphDocumentChangedSuppressor);
bool chooseNextLevel = ActiveGrip.Deactivate();
ActiveGrip = null;
if (chooseNextLevel && null != SingleSelectedHitTestObject)
{
DisplayedGripLevel = SingleSelectedHitTestObject.GetNextGripLevel(DisplayedGripLevel);
bRepaint = true;
}
_grac.RenderOverlay();
}
}
/// <summary>
/// Handles the mouse move event.
/// </summary>
/// <param name="position">Mouse position.</param>
/// <param name="e">MouseEventArgs as provided by the view.</param>
/// <returns>The next mouse state handler that should handle mouse events.</returns>
public override void OnMouseMove(PointD2D position, MouseEventArgs e)
{
base.OnMouseMove(position, e);
if (null != ActiveGrip)
{
PointD2D graphCoord = _grac.ConvertMouseToRootLayerCoordinates(position);
ActiveGrip.MoveGrip(graphCoord);
_wereObjectsMoved = true;
_grac.RenderOverlay();
}
else if (e.LeftButton == MouseButtonState.Pressed)
{
var diffPos = position - _positionLastMouseDownInMouseCoordinates;
var oldRect = _rectangleSelectionArea_GraphCoordinates;
if (null != _rectangleSelectionArea_GraphCoordinates ||
Math.Abs(diffPos.X) >= System.Windows.SystemParameters.MinimumHorizontalDragDistance ||
Math.Abs(diffPos.Y) >= System.Windows.SystemParameters.MinimumHorizontalDragDistance)
{
if (null == _rectangleSelectionArea_GraphCoordinates)
{
(_grac.ViewObject as IGraphView).CaptureMouseOnCanvas();
}
var pt1 = _grac.ConvertMouseToRootLayerCoordinates(_positionLastMouseDownInMouseCoordinates);
var rect = new RectangleD2D(pt1, PointD2D.Empty);
rect.ExpandToInclude(_grac.ConvertMouseToRootLayerCoordinates(position));
_rectangleSelectionArea_GraphCoordinates = rect;
}
if (null != _rectangleSelectionArea_GraphCoordinates)
{
_grac.RenderOverlay();
}
}
}
/// <summary>
/// Handles the mouse up event.
/// </summary>
/// <param name="position">Mouse position.</param>
/// <param name="e">MouseEventArgs as provided by the view.</param>
/// <returns>The next mouse state handler that should handle mouse events.</returns>
public override void OnMouseUp(PointD2D position, MouseButtonEventArgs e)
{
base.OnMouseUp(position, e);
if (e.LeftButton == MouseButtonState.Released && null != _rectangleSelectionArea_GraphCoordinates)
{
List<IHitTestObject> foundObjects;
_grac.FindGraphObjectInRootLayerRectangle(_rectangleSelectionArea_GraphCoordinates.Value, out foundObjects);
AddSelectedObjectsFromRectangularSelection(foundObjects);
_grac.ReleaseMouseCapture();
_rectangleSelectionArea_GraphCoordinates = null;
_grac.RenderOverlay();
}
else if (ActiveGrip != null)
{
bool bRefresh = _wereObjectsMoved; // repaint the graph when objects were really moved
bool bRepaint = false;
_wereObjectsMoved = false;
_grac.Doc.Resume(ref _graphDocumentChangedSuppressor);
bool chooseNextLevel = ActiveGrip.Deactivate();
ActiveGrip = null;
if (chooseNextLevel && null != SingleSelectedHitTestObject)
{
DisplayedGripLevel = SingleSelectedHitTestObject.GetNextGripLevel(DisplayedGripLevel);
bRepaint = true;
}
_grac.RenderOverlay();
}
}
/// <summary>
/// Handles the mouse move event.
/// </summary>
/// <param name="position">Mouse position.</param>
/// <param name="e">MouseEventArgs as provided by the view.</param>
/// <returns>The next mouse state handler that should handle mouse events.</returns>
public override void OnMouseMove(PointD2D position, MouseEventArgs e)
{
base.OnMouseMove(position, e);
if (null != ActiveGrip)
{
PointD2D graphCoord = _grac.ConvertMouseToRootLayerCoordinates(position);
ActiveGrip.MoveGrip(graphCoord);
_wereObjectsMoved = true;
_grac.RenderOverlay();
}
else if (e.LeftButton == MouseButtonState.Pressed)
{
var diffPos = position - _positionLastMouseDownInMouseCoordinates;
var oldRect = _rectangleSelectionArea_GraphCoordinates;
if (null != _rectangleSelectionArea_GraphCoordinates ||
Math.Abs(diffPos.X) >= System.Windows.SystemParameters.MinimumHorizontalDragDistance ||
Math.Abs(diffPos.Y) >= System.Windows.SystemParameters.MinimumHorizontalDragDistance)
{
if (null == _rectangleSelectionArea_GraphCoordinates)
{
_grac.CaptureMouse();
}
var pt1 = _grac.ConvertMouseToRootLayerCoordinates(_positionLastMouseDownInMouseCoordinates);
var rect = new RectangleD2D(pt1, PointD2D.Empty);
rect.ExpandToInclude(_grac.ConvertMouseToRootLayerCoordinates(position));
_rectangleSelectionArea_GraphCoordinates = rect;
}
if (null != _rectangleSelectionArea_GraphCoordinates)
_grac.RenderOverlay();
}
}
