public static void AddRectangleHandles(GoObject myObject, RectangleF rect, PointF center, float angle, GoSelection sel, GoObject selectedObj) { GoView view = sel.View; bool flag = view?.CanResizeObjects() ?? true; bool flag2 = view?.CanReshapeObjects() ?? true; if (myObject.CanResize() && flag) { float x = rect.X; float x2 = rect.X + rect.Width / 2f; float x3 = rect.X + rect.Width; float y = rect.Y; float y2 = rect.Y + rect.Height / 2f; float y3 = rect.Y + rect.Height; double num = (double)angle * Math.PI / 180.0; double cosine = Math.Cos(num); double sine = Math.Sin(num); SetResizeCursor(sel.CreateResizeHandle(myObject, selectedObj, RotatePoint(new PointF(x, y), center, cosine, sine), 2, filled: true), angle); SetResizeCursor(sel.CreateResizeHandle(myObject, selectedObj, RotatePoint(new PointF(x3, y), center, cosine, sine), 4, filled: true), angle); SetResizeCursor(sel.CreateResizeHandle(myObject, selectedObj, RotatePoint(new PointF(x3, y3), center, cosine, sine), 8, filled: true), angle); SetResizeCursor(sel.CreateResizeHandle(myObject, selectedObj, RotatePoint(new PointF(x, y3), center, cosine, sine), 16, filled: true), angle); if (myObject.CanReshape() && flag2) { SetResizeCursor(sel.CreateResizeHandle(myObject, selectedObj, RotatePoint(new PointF(x2, y), center, cosine, sine), 32, filled: true), angle); SetResizeCursor(sel.CreateResizeHandle(myObject, selectedObj, RotatePoint(new PointF(x3, y2), center, cosine, sine), 64, filled: true), angle); SetResizeCursor(sel.CreateResizeHandle(myObject, selectedObj, RotatePoint(new PointF(x2, y3), center, cosine, sine), 128, filled: true), angle); SetResizeCursor(sel.CreateResizeHandle(myObject, selectedObj, RotatePoint(new PointF(x, y2), center, cosine, sine), 256, filled: true), angle); } } }
/// <summary> /// Return the appropriate resize cursor name for the handle ID's corresponding to /// the standard spots, but return null if the object cannot be resized. /// </summary> /// <param name="view"></param> /// <returns> /// null if <see cref="M:Northwoods.Go.GoView.CanResizeObjects" /> is false or if /// <see cref="P:Northwoods.Go.GoHandle.GoObject" />.<c>CanResize</c> and <see cref="P:Northwoods.Go.GoHandle.GoObject" />.<c>CanReshape</c> are both false; /// otherwise the value of <see cref="P:Northwoods.Go.GoHandle.CursorName" /> if it is non-null; /// finally a cursor name depending on the <see cref="P:Northwoods.Go.GoHandle.HandleID" />, /// such as "se-resize" for <see cref="P:Northwoods.Go.GoHandle.GoObject" />.<c>BottomRight</c> or /// "hand" for <see cref="F:Northwoods.Go.GoLink.RelinkableToHandle" />, or "move" /// for most other handles, or finally null if the <see cref="P:Northwoods.Go.GoHandle.HandleID" /> /// is <see cref="P:Northwoods.Go.GoHandle.GoObject" />.<c>NoHandle</c>. /// </returns> public override string GetCursorName(GoView view) { GoObject handledObject = HandledObject; if (handledObject == null || (view != null && !view.CanResizeObjects()) || (!handledObject.CanResize() && !handledObject.CanReshape())) { return(null); } string text = CursorName; if (text == null) { text = GetCursorNameForHandleID(HandleID); } return(text); }