/// <summary> /// Add new object to draw DrawArea.Control. /// Function is called when user left-clicks draw area, /// and one of ToolObject-derived tools is active. /// </summary> /// <param name="control"></param> /// <param name="o"></param> protected void AddNewObject(MapControl control, DrawObject o) { control.Objects.UnselectAll(); control.Add(o); control.SetDirty(); }
/// <summary> /// Mouse is moved. /// None button is pressed, or left button is pressed. /// </summary> /// <param name="control"></param> /// <param name="e"></param> public override void OnMouseMove(MapControl control, MouseEventArgs e) { Point point = new Point(e.X, e.Y); Point oldPoint = lastPoint; wasMove = true; // set cursor when mouse button is not pressed if (e.Button == MouseButtons.None) { Cursor cursor = null; for (int i = 0; i < control.Objects.Count; i++) { int n = control.Objects[i].HitTest(point); if (n > 0) { cursor = control.Objects[i].GetHandleCursor(n); break; } else if (n == 0) { cursor = Cursors.Hand; break; } } if (cursor == null) { cursor = Cursors.Default; } control.Cursor = cursor; return; } if (e.Button != MouseButtons.Left) { return; } /// Left button is pressed // Find difference between previous and current position int dx = e.X - lastPoint.X; int dy = e.Y - lastPoint.Y; lastPoint.X = e.X; lastPoint.Y = e.Y; // resize if (selectMode == SelectionMode.Size) { if (resizedObject != null) { resizedObject.MoveHandleTo(point, resizedObjectHandle); control.Refresh(); control.SetDirty(); } } // move if (selectMode == SelectionMode.Move) { foreach (DrawObject o in control.Objects.Selection) { o.Move(dx, dy); } control.Cursor = Cursors.Hand; control.Refresh(); control.SetDirty(); } if (selectMode == SelectionMode.NetSelection) { // Remove old selection rectangle ControlPaint.DrawReversibleFrame( control.RectangleToScreen(DrawRectangle.GetNormalizedRectangle(startPoint, oldPoint)), Color.Black, FrameStyle.Dashed); // Draw new selection rectangle ControlPaint.DrawReversibleFrame( control.RectangleToScreen(DrawRectangle.GetNormalizedRectangle(startPoint, point)), Color.Black, FrameStyle.Dashed); return; } }