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Diffstat (limited to 'share/extensions/image_attributes.py')
| -rwxr-xr-x | share/extensions/image_attributes.py | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/share/extensions/image_attributes.py b/share/extensions/image_attributes.py new file mode 100755 index 000000000..ddd5a8b87 --- /dev/null +++ b/share/extensions/image_attributes.py @@ -0,0 +1,169 @@ +#!/usr/bin/env python +''' +image_attributes.py - adjust image attributes which don't have global +GUI options yet + +Tool for Inkscape 0.91 to adjust rendering of drawings with linked +or embedded bitmap images created with older versions of Inkscape +or third-party applications. + +Copyright (C) 2015, ~suv <suv-sf@users.sf.net> + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +''' + +# local library +import inkex +import simplestyle + +try: + inkex.localize() +except: + import gettext + _ = gettext.gettext + + +class SetAttrImage(inkex.Effect): + def __init__(self): + inkex.Effect.__init__(self) + # main options + self.OptionParser.add_option("--fix_scaling", + action="store", type="inkbool", + dest="fix_scaling", default=True, + help="") + self.OptionParser.add_option("--fix_rendering", + action="store", type="inkbool", + dest="fix_rendering", default=False, + help="") + self.OptionParser.add_option("--aspect_ratio", + action="store", type="string", + dest="aspect_ratio", default="none", + help="Value for attribute 'preserveAspectRatio'") + self.OptionParser.add_option("--aspect_clip", + action="store", type="string", + dest="aspect_clip", default="unset", + help="optional 'meetOrSlice' value") + self.OptionParser.add_option("--aspect_ratio_scope", + action="store", type="string", + dest="aspect_ratio_scope", default="selected_only", + help="scope within which to edit 'preserveAspectRatio' attribute") + self.OptionParser.add_option("--image_rendering", + action="store", type="string", + dest="image_rendering", default="unset", + help="Value for attribute 'image-rendering'") + self.OptionParser.add_option("--image_rendering_scope", + action="store", type="string", + dest="image_rendering_scope", default="selected_only", + help="scope within which to edit 'image-rendering' attribute") + # tabs + self.OptionParser.add_option("--tab_main", + action="store", type="string", + dest="tab_main") + + # core method + + def change_attribute(self, node, attribute): + for key, value in attribute.items(): + if key == 'preserveAspectRatio': + # set presentation attribute + if value != "unset": + node.set(key, str(value)) + else: + if node.get(key): + del node.attrib[key] + elif key == 'image-rendering': + node_style = simplestyle.parseStyle(node.get('style')) + if key not in node_style: + # set presentation attribute + if value != "unset": + node.set(key, str(value)) + else: + if node.get(key): + del node.attrib[key] + else: + # set style property + if value != "unset": + node_style[key] = str(value) + else: + del node_style[key] + node.set('style', simplestyle.formatStyle(node_style)) + else: + pass + + def change_all_images(self, node, attribute): + path = 'descendant-or-self::svg:image' + for img in node.xpath(path, namespaces=inkex.NSS): + self.change_attribute(img, attribute) + + # methods called via dispatcher + + def change_selected_only(self, selected, attribute): + if selected: + for node_id, node in selected.iteritems(): + if node.tag == inkex.addNS('image', 'svg'): + self.change_attribute(node, attribute) + + def change_in_selection(self, selected, attribute): + if selected: + for node_id, node in selected.iteritems(): + self.change_all_images(node, attribute) + + def change_in_document(self, selected, attribute): + self.change_all_images(self.document.getroot(), attribute) + + def change_on_parent_group(self, selected, attribute): + if selected: + for node_id, node in selected.iteritems(): + self.change_attribute(node.getparent(), attribute) + + def change_on_root_only(self, selected, attribute): + self.change_attribute(self.document.getroot(), attribute) + + # main + + def effect(self): + attr_val = [] + attr_dict = {} + cmd_scope = None + if self.options.tab_main == '"tab_basic"': + cmd_scope = "in_document" + attr_dict['preserveAspectRatio'] = ("none" if self.options.fix_scaling else "unset") + attr_dict['image-rendering'] = ("optimizeSpeed" if self.options.fix_rendering else "unset") + elif self.options.tab_main == '"tab_aspectRatio"': + attr_val = [self.options.aspect_ratio] + if self.options.aspect_clip != "unset": + attr_val.append(self.options.aspect_clip) + attr_dict['preserveAspectRatio'] = ' '.join(attr_val) + cmd_scope = self.options.aspect_ratio_scope + elif self.options.tab_main == '"tab_image_rendering"': + attr_dict['image-rendering'] = self.options.image_rendering + cmd_scope = self.options.image_rendering_scope + else: # help tab + pass + # dispatcher + if cmd_scope is not None: + try: + change_cmd = getattr(self, 'change_{0}'.format(cmd_scope)) + change_cmd(self.selected, attr_dict) + except AttributeError: + inkex.errormsg('Scope "{0}" not supported'.format(cmd_scope)) + + +if __name__ == '__main__': + e = SetAttrImage() + e.affect() + + +# vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 fileencoding=utf-8 textwidth=99 |