import os import xml.etree.ElementTree as etree from lib import util def get_inkscape_layers(svg_path): document = etree.parse(svg_path) def iter_layers(): nodes = document.findall( '{http://www.w3.org/2000/svg}g[@{http://www.inkscape.org/namespaces/inkscape}groupmode="layer"]') for i in nodes: inkscape_name = i.get('{http://www.inkscape.org/namespaces/inkscape}label').strip() if inkscape_name.endswith(']'): export_name, args = inkscape_name[:-1].rsplit('[', 1) export_name = export_name.strip() args = args.strip() use_paths = 'p' in args else: use_paths = False export_name = inkscape_name yield Layer(inkscape_name, export_name, use_paths) return list(iter_layers()) def _inkscape(svg_path, verbs): def iter_args(): yield os.environ['INKSCAPE'] for i in verbs: yield '--verb' yield i yield svg_path util.command(list(iter_args())) class Layer(object): def __init__(self, inkscape_name, export_name, use_paths): self.inkscape_name = inkscape_name self.export_name = export_name self.use_paths = use_paths class InkscapeCommandLine(object): def __init__(self, path): self._path = path self._layers = get_inkscape_layers(path) self._current_layer_index = None self._verbs = [] def apply_to_document(self, *verb): self._verbs.extend(verb) def apply_to_layer(self, layer, *verb): self._go_to_layer(layer) self.apply_to_document(*verb) def select_all_in_layer(self, layer): self.apply_to_layer(layer, 'EditSelectAll') def apply_to_layer_content(self, layer, *verbs): self.select_all_in_layer(layer) self.apply_to_document(*verbs) def _go_to_layer(self, layer, with_selection = False): if self._current_layer_index is None: # Initialize to a known state. self._current_layer_index = len(self._layers) - 1 self._go_to_layer(self._layers[0]) target_index = self._layers.index(layer) while True: if self._current_layer_index < target_index: self.apply_to_document('LayerMoveToNext' if with_selection else 'LayerNext') self._current_layer_index += 1 elif self._current_layer_index > target_index: self.apply_to_document('LayerMoveToPrev' if with_selection else 'LayerPrev') self._current_layer_index -= 1 else: break def duplicate_layer(self, layer): self.apply_to_layer(layer, 'LayerDuplicate') # Inkscape 0.91 places a duplicated layer above (after) the selected one and selects the new layer. new_layer = Layer(layer.inkscape_name + ' copy', layer.export_name, layer.use_paths) self._current_layer_index += 1 self._layers.insert(self._current_layer_index, new_layer) return new_layer def delete_layer(self, layer): self.apply_to_layer(layer, 'LayerDelete') # Inkscape 0.91 selects the layer above (after) the deleted layer. del self._layers[self._current_layer_index] def clear_layer(self, layer): self.select_all_in_layer(layer) self.apply_to_document('EditDelete') def move_content(self, source_layer, target_layer): self.select_all_in_layer(source_layer) self._go_to_layer(target_layer, True) def run(self): _inkscape(self._path, self._verbs) @property def layers(self): return list(self._layers)