private void Form1_MouseDown(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { using (Teigha.GraphicsSystem.View pView = helperDevice.ActiveView) { ClearSelection(); selRect = new RectFram(toEyeToWorld(e.X, e.Y)); pView.Add(selRect); startSelPoint = new Point2d(e.X, e.Y); Invalidate(); selRect.setValue(toEyeToWorld(e.X + _SelectRegion, e.Y + _SelectRegion)); pView.Select( new Point2dCollection(new Point2d[] { startSelPoint, new Point2d(e.X + _SelectRegion, e.Y + _SelectRegion) }), new SR(selected, database.CurrentSpaceId), startSelPoint.X < e.X ? Teigha.GraphicsSystem.SelectionMode.Window : Teigha.GraphicsSystem.SelectionMode.Crossing); pView.Erase(selRect); selRect = null; gripManager.updateSelection(selected); helperDevice.Invalidate(); Invalidate(); } } else if (e.Button == MouseButtons.Right) { _IsMoving = true; startSelPoint = new Point2d(e.X, e.Y); } }
private void Form1_MouseDown(object sender, MouseEventArgs e) { switch (mouseMode) { case Mode.Quiescent: { if (gripManager.OnMouseDown(e.X, e.Y)) { mouseMode = Mode.DragDrop; } else { using (Teigha.GraphicsSystem.View pView = helperDevice.ActiveView) { selRect = new RectFram(toEyeToWorld(e.X, e.Y)); pView.Add(selRect); startSelPoint = new Point2d(e.X, e.Y); Invalidate(); mouseMode = Mode.Selection; } } break; } case Mode.Selection: { using (Teigha.GraphicsSystem.View pView = helperDevice.ActiveView) { pView.Select(new Point2dCollection(new Point2d[] { startSelPoint, new Point2d(e.X, e.Y) }), new SR(selected, database.CurrentSpaceId), startSelPoint.X < e.X ? Teigha.GraphicsSystem.SelectionMode.Window : Teigha.GraphicsSystem.SelectionMode.Crossing); pView.Erase(selRect); selRect = null; gripManager.updateSelection(selected); helperDevice.Invalidate(); Invalidate(); } mouseMode = Mode.Quiescent; break; } case Mode.DragDrop: { using (Teigha.GraphicsSystem.View pView = helperDevice.ActiveView) { gripManager.DragFinal(toEyeToWorld(e.X, e.Y), true); helperDevice.Model.Invalidate(InvalidationHint.kInvalidateAll); Invalidate(); } mouseMode = Mode.Quiescent; break; } default: break; } }