CTShape ct = CTShape.Factory.newInstance();
CTShapeNonVisual nvSpPr = ct.addNewNvSpPr();
CTNonVisualDrawingProps cnv = nvSpPr.addNewCNvPr();
cnv.setName("TextBox " + shapeId);
cnv.setId(shapeId + 1);
nvSpPr.addNewCNvSpPr().setTxBox(true);
nvSpPr.addNewNvPr();
CTShapeProperties spPr = ct.addNewSpPr();
CTPresetGeometry2D prst = spPr.addNewPrstGeom();
prst.setPrst(STShapeType.RECT);
prst.addNewAvLst();