def _compute_best_text_path(self): text_path_a = TextPath(self._input_line_string, self._layout) text_path_a.side = self._side text_path_a.alignment = self._alignment text_path_a.start_offset = self._start_offset text_path_a.vertical_offset = self._vertical_offset text_path_a.layout_engine_class = self._layout_engine_class text_path_b = TextPath(self._input_line_string, self._layout) text_path_b.side = self._side.flipped text_path_b.alignment = self._alignment text_path_b.start_offset = self._start_offset text_path_b.vertical_offset = self._vertical_offset text_path_b.layout_engine_class = self._layout_engine_class baseline_a = text_path_a.compute_baseline() baseline_b = text_path_b.compute_baseline() ltr_length_a = line_string_helper.left_to_right_length(baseline_a) ltr_length_b = line_string_helper.left_to_right_length(baseline_b) if ltr_length_a > ltr_length_b: self._text_path = text_path_a else: self._text_path = text_path_b
def test_side(self): surface, cairo_context = self._create_real_surface('side.svg') layout = pangocairocffi.create_layout(cairo_context) layout.set_markup('Hi from Παν語') line_string = LineString([[10, 30], [50, 30], [90, 70]]) text_path = TextPath(line_string, layout) text_path.draw(cairo_context) debug.draw_line_string(cairo_context, line_string) cairo_context.stroke() line_string = translate(line_string, 0, 20) text_path = TextPath(line_string, layout) text_path.side = Side.RIGHT text_path.draw(cairo_context) debug.draw_line_string(cairo_context, line_string) cairo_context.stroke() surface.finish()
def test_setters_getters(self): surface, cairo_context = self._create_void_surface() layout = pangocairocffi.create_layout(cairo_context) layout.set_markup('Hi from Παν語') line_string = LineString([[0, 0], [600, 0]]) text_path = TextPath(line_string, layout) assert isinstance(text_path.side, Side) assert isinstance(text_path.alignment, Alignment) assert isinstance(text_path.start_offset, float) assert isinstance(text_path.vertical_offset, float) text_path.side = Side.RIGHT text_path.alignment = Alignment.RIGHT text_path.start_offset = 12 text_path.vertical_offset = 34 assert isinstance(text_path.side, Side) assert isinstance(text_path.alignment, Alignment) assert isinstance(text_path.start_offset, float) assert isinstance(text_path.vertical_offset, float) text_path.layout_engine_class = Svg