#!/usr/bin/env python # coding=utf-8 # # Copyright (C) 2010 Craig Marshall, craig9 [at] gmail.com # # 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 # """ This script finds all fonts in the current drawing that match the specified find font, and replaces them with the specified replacement font. It can also replace all fonts indiscriminately, and list all fonts currently being used. """ import inkex from inkex.localization import inkex_gettext as _ text_tags = [ "{http://www.w3.org/2000/svg}tspan", "{http://www.w3.org/2000/svg}text", "{http://www.w3.org/2000/svg}flowRoot", "{http://www.w3.org/2000/svg}flowPara", "{http://www.w3.org/2000/svg}flowSpan", ] font_attributes = ["font-family", "-inkscape-font-specification"] def set_font(node, new_font, style=None): """ Sets the font attribute in the style attribute of node, using the font name stored in new_font. If the style dict is open already, it can be passed in, otherwise it will be optned anyway. Returns a dirty boolean flag """ dirty = False if not style: style = node.style if style: for att in font_attributes: if att in style: style[att] = new_font node.style = style dirty = True return dirty def find_replace_font(node, find, replace): """ Searches the relevant font attributes/styles of node for find, and replaces them with replace. Returns a dirty boolean flag """ dirty = False style = node.style if style: for att in font_attributes: if style(att).strip().lower() == find: set_font(node, replace, style) dirty = True return dirty def is_styled_text(node): """ Returns true if the tag in question is a "styled" element that can hold text. """ return node.tag in text_tags and "style" in node.attrib def is_text(node): """ Returns true if the tag in question is an element that can hold text. """ return node.tag in text_tags def get_fonts(node): """ Given a node, returns a list containing all the fonts that the node is using. """ fonts = [] s = node.style if not s: return fonts for a in font_attributes: if a in s: fonts.append(s[a]) return fonts def report_replacements(num): """ Sends a message to the end user showing success of failure of the font replacement """ if num == 0: inkex.errormsg( _( "Couldn't find anything using that font, please ensure the spelling " "and spacing is correct." ) ) def report_findings(findings): """ Tells the user which fonts were found, if any """ if len(findings) == 0: inkex.errormsg(_("Didn't find any fonts in this document/selection.")) else: if len(findings) == 1: inkex.errormsg(_("Found the following font only: %s") % findings[0]) else: inkex.errormsg(_("Found the following fonts:\n%s") % "\n".join(findings)) class ReplaceFont(inkex.EffectExtension): """ Replaces all instances of one font with another """ def add_arguments(self, pars): pars.add_argument("--fr_find") pars.add_argument("--fr_replace") pars.add_argument("--r_replace") pars.add_argument("--action") pars.add_argument("--scope") def find_child_text_items(self, node): """ Recursive method for appending all text-type elements to self.selected_items """ if is_text(node): yield node for child in node: for textchild in self.find_child_text_items(child): yield textchild def relevant_items(self, scope): """ Depending on the scope, returns all text elements, or all selected text elements including nested children """ items = [] to_return = [] selected = self.svg if scope == "selection_only": selected = self.svg.selection.values() for item in selected: items.extend(self.find_child_text_items(item)) if not items: return inkex.errormsg(_("There was nothing selected")) return items def find_replace(self, nodes, find, replace): """ Walks through nodes, replacing fonts as it goes according to find and replace """ replacements = 0 for node in nodes: if find_replace_font(node, find, replace): replacements += 1 report_replacements(replacements) def replace_all(self, nodes, replace): """ Walks through nodes, setting fonts indiscriminately. """ replacements = 0 for node in nodes: if set_font(node, replace): replacements += 1 report_replacements(replacements) def list_all(self, nodes): """ Walks through nodes, building a list of all fonts found, then reports to the user with that list """ fonts_found = [] for node in nodes: for f in get_fonts(node): if not f in fonts_found: fonts_found.append(f) report_findings(sorted(fonts_found)) def effect(self): if not self.options.action: return inkex.errormsg(_("Nothing to do, no action specified.")) action = self.options.action.strip( '"' ) # TODO Is this a bug? (Extra " characters) scope = self.options.scope relevant_items = self.relevant_items(scope) if action == "find_replace": find = self.options.fr_find if find is None or find == "": return inkex.errormsg( _("Please enter a search string in the find box.") ) find = find.strip().lower() replace = self.options.fr_replace if replace is None or replace == "": return inkex.errormsg( _("Please enter a replacement font in the replace with box.") ) self.find_replace(relevant_items, find, replace) elif action == "replace_all": replace = self.options.r_replace if replace is None or replace == "": return inkex.errormsg( _("Please enter a replacement font in the replace all box.") ) self.replace_all(relevant_items, replace) elif action == "list_only": self.list_all(relevant_items) if __name__ == "__main__": ReplaceFont().run()