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Diffstat (limited to 'src/extension/internal/wpg-input.cpp')
| -rw-r--r-- | src/extension/internal/wpg-input.cpp | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/src/extension/internal/wpg-input.cpp b/src/extension/internal/wpg-input.cpp new file mode 100644 index 0000000..5e6f381 --- /dev/null +++ b/src/extension/internal/wpg-input.cpp @@ -0,0 +1,157 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * This file came from libwpg as a source, their utility wpg2svg + * specifically. It has been modified to work as an Inkscape extension. + * The Inkscape extension code is covered by this copyright, but the + * rest is covered by the one below. + * + * Authors: + * Ted Gould <ted@gould.cx> + * Abhishek Sharma + * + * Copyright (C) 2006 Authors + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + * + */ + +/* libwpg + * Copyright (C) 2006 Ariya Hidayat (ariya@kde.org) + * Copyright (C) 2005 Fridrich Strba (fridrich.strba@bluewin.ch) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * For further information visit http://libwpg.sourceforge.net + */ + +/* "This product is not manufactured, approved, or supported by + * Corel Corporation or Corel Corporation Limited." + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" // only include where actually required! +#endif + +#include <cstdio> + +#ifdef WITH_LIBWPG + +#include "wpg-input.h" +#include "extension/system.h" +#include "extension/input.h" +#include "document.h" +#include "object/sp-root.h" +#include "util/units.h" +#include <cstring> + +#include "libwpg/libwpg.h" +#include <librevenge-stream/librevenge-stream.h> + +using librevenge::RVNGString; +using librevenge::RVNGFileStream; +using librevenge::RVNGInputStream; + +using namespace libwpg; + +namespace Inkscape { +namespace Extension { +namespace Internal { + + +SPDocument *WpgInput::open(Inkscape::Extension::Input * /*mod*/, const gchar * uri) +{ + #ifdef _WIN32 + // RVNGFileStream uses fopen() internally which unfortunately only uses ANSI encoding on Windows + // therefore attempt to convert uri to the system codepage + // even if this is not possible the alternate short (8.3) file name will be used if available + gchar * converted_uri = g_win32_locale_filename_from_utf8(uri); + RVNGInputStream* input = new RVNGFileStream(converted_uri); + g_free(converted_uri); + #else + RVNGInputStream* input = new RVNGFileStream(uri); + #endif + + if (input->isStructured()) { + RVNGInputStream* olestream = input->getSubStreamByName("PerfectOffice_MAIN"); + + if (olestream) { + delete input; + input = olestream; + } + } + + if (!WPGraphics::isSupported(input)) { + //! \todo Dialog here + // fprintf(stderr, "ERROR: Unsupported file format (unsupported version) or file is encrypted!\n"); + // printf("I'm giving up not supported\n"); + delete input; + return nullptr; + } + + librevenge::RVNGStringVector vec; + librevenge::RVNGSVGDrawingGenerator generator(vec, ""); + + if (!libwpg::WPGraphics::parse(input, &generator) || vec.empty() || vec[0].empty()) { + delete input; + return nullptr; + } + + RVNGString output("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n"); + output.append(vec[0]); + + //printf("I've got a doc: \n%s", painter.document.c_str()); + + SPDocument * doc = SPDocument::createNewDocFromMem(output.cstr(), strlen(output.cstr()), TRUE); + + // Set viewBox if it doesn't exist + if (doc && !doc->getRoot()->viewBox_set) { + doc->setViewBox(Geom::Rect::from_xywh(0, 0, doc->getWidth().value(doc->getDisplayUnit()), doc->getHeight().value(doc->getDisplayUnit()))); + } + + delete input; + return doc; +} + +#include "clear-n_.h" + +void WpgInput::init() { + // clang-format off + Inkscape::Extension::build_from_mem( + "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n" + "<name>" N_("WPG Input") "</name>\n" + "<id>org.inkscape.input.wpg</id>\n" + "<input>\n" + "<extension>.wpg</extension>\n" + "<mimetype>image/x-wpg</mimetype>\n" + "<filetypename>" N_("WordPerfect Graphics (*.wpg)") "</filetypename>\n" + "<filetypetooltip>" N_("Vector graphics format used by Corel WordPerfect") "</filetypetooltip>\n" + "</input>\n" + "</inkscape-extension>", new WpgInput()); + // clang-format on +} // init + +} } } /* namespace Inkscape, Extension, Implementation */ +#endif /* WITH_LIBWPG */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 : |