src/extension/init.cpp

   1 /*
   2  * This is what gets executed to initialize all of the modules.  For
   3  * the internal modules this invovles executing their initialization
   4  * functions, for external ones it involves reading their .spmodule
   5  * files and bringing them into Sodipodi.
   6  *
   7  * Authors:
   8  *   Ted Gould <ted@gould.cx>
   9  *
  10  * Copyright (C) 2002-2004 Authors
  11  *
  12  * Released under GNU GPL, read the file 'COPYING' for more information
  13  */
  14
  15 #ifdef HAVE_CONFIG_H
  16 # include "config.h"
  17 #endif
  18 #include "path-prefix.h"
  19
  20
  21 #include "inkscape.h"
  22 #include <glibmm/ustring.h>
  23 #include <glibmm/i18n.h>
  24
  25 #include "system.h"
  26 #include "db.h"
  27 #include "internal/svgz.h"
  28 #ifdef WIN32
  29 # include "internal/win32.h"
  30 # include "internal/emf-win32-inout.h"
  31 # include "internal/emf-win32-print.h"
  32 #endif
  33 #ifdef HAVE_CAIRO_PDF
  34 # include "internal/cairo-renderer-pdf-out.h"
  35 # include "internal/cairo-png-out.h"
  36 # include "internal/cairo-ps-out.h"
  37 #endif
  38 #ifdef HAVE_POPPLER
  39 # include "internal/pdfinput/pdf-input.h"
  40 #endif
  41 #ifdef HAVE_POPPLER_GLIB
  42 # include "internal/pdf-input-cairo.h"
  43 #endif
  44 #include "internal/pov-out.h"
  45 #include "internal/javafx-out.h"
  46 #include "internal/odf.h"
  47 #include "internal/latex-pstricks-out.h"
  48 #include "internal/latex-pstricks.h"
  49 #include "internal/gdkpixbuf-input.h"
  50 #include "internal/bluredge.h"
  51 #include "internal/gimpgrad.h"
  52 #include "internal/grid.h"
  53 #ifdef WITH_LIBWPG
  54 #include "internal/wpg-input.h"
  55 #endif
  56 #include "preferences.h"
  57 #include "io/sys.h"
  58
  59 #ifdef WITH_IMAGE_MAGICK
  60 #include "internal/bitmap/adaptiveThreshold.h"
  61 #include "internal/bitmap/addNoise.h"
  62 #include "internal/bitmap/blur.h"
  63 #include "internal/bitmap/channel.h"
  64 #include "internal/bitmap/charcoal.h"
  65 #include "internal/bitmap/colorize.h"
  66 #include "internal/bitmap/contrast.h"
  67 #include "internal/bitmap/cycleColormap.h"
  68 #include "internal/bitmap/despeckle.h"
  69 #include "internal/bitmap/edge.h"
  70 #include "internal/bitmap/emboss.h"
  71 #include "internal/bitmap/enhance.h"
  72 #include "internal/bitmap/equalize.h"
  73 #include "internal/bitmap/gaussianBlur.h"
  74 #include "internal/bitmap/implode.h"
  75 #include "internal/bitmap/level.h"
  76 #include "internal/bitmap/levelChannel.h"
  77 #include "internal/bitmap/medianFilter.h"
  78 #include "internal/bitmap/modulate.h"
  79 #include "internal/bitmap/negate.h"
  80 #include "internal/bitmap/normalize.h"
  81 #include "internal/bitmap/oilPaint.h"
  82 #include "internal/bitmap/opacity.h"
  83 #include "internal/bitmap/raise.h"
  84 #include "internal/bitmap/reduceNoise.h"
  85 #include "internal/bitmap/sample.h"
  86 #include "internal/bitmap/shade.h"
  87 #include "internal/bitmap/sharpen.h"
  88 #include "internal/bitmap/solarize.h"
  89 #include "internal/bitmap/spread.h"
  90 #include "internal/bitmap/swirl.h"
  91 //#include "internal/bitmap/threshold.h"
  92 #include "internal/bitmap/unsharpmask.h"
  93 #include "internal/bitmap/wave.h"
  94 #endif /* WITH_IMAGE_MAGICK */
  95
  96 #include "internal/filter/filter.h"
  97
  98 extern gboolean inkscape_app_use_gui( Inkscape::Application const *app );
  99
 100 namespace Inkscape {
 101 namespace Extension {
 102
 103 /** This is the extention that all files are that are pulled from
 104     the extension directory and parsed */
 105 #define SP_MODULE_EXTENSION  "inx"
 106
 107 static void build_module_from_dir(gchar const *dirname);
 108 static void check_extensions();
 109
 110 /**
 111  * \return    none
 112  * \brief     Examines the given string preference and checks to see
 113  *            that at least one of the registered extensions matches
 114  *            it.  If not, a default is assigned.
 115  * \param     pref_path        Preference path to update
 116  * \param     pref_default     Default string to set
 117  * \param     extension_family List of extensions to search
 118  */
 119 static void
 120 update_pref(Glib::ustring const &pref_path,
 121             gchar const *pref_default) // , GSList *extension_family)
 122 {
 123     Glib::ustring pref = Inkscape::Preferences::get()->getString(pref_path);
 124     /*
 125     gboolean missing=TRUE;
 126     for (GSList *list = extension_family; list; list = g_slist_next(list)) {
 127         g_assert( list->data );
 128
 129         Inkscape::Extension *extension;
 130         extension = reinterpret_cast<Inkscape::Extension *>(list->data);
 131
 132         if (!strcmp(extension->get_id(),pref)) missing=FALSE;
 133     }
 134     */
 135     if (!Inkscape::Extension::db.get( pref.data() ) /*missing*/) {
 136         Inkscape::Preferences::get()->setString(pref_path, pref_default);
 137     }
 138 }
 139
 140 /**
 141  * Invokes the init routines for internal modules.
 142  *
 143  * This should be a list of all the internal modules that need to initialized.  This is just a
 144  * convinent place to put them.  Also, this function calls build_module_from_dir to parse the
 145  * Inkscape extensions directory.
 146  */
 147 void
 148 init()
 149 {
 150     /* TODO: Change to Internal */
 151     Internal::Svg::init();
 152     Internal::Svgz::init();
 153
 154 #ifdef HAVE_CAIRO_PDF
 155     //g_print ("Using CairoRendererPdfOutput: new pdf exporter\n");
 156     Internal::CairoRendererPdfOutput::init();
 157     Internal::CairoRendererOutput::init();
 158
 159     Internal::CairoPsOutput::init();
 160     Internal::CairoEpsOutput::init();
 161 #endif
 162 #ifdef HAVE_POPPLER
 163     Internal::PdfInput::init();
 164 #endif
 165 #ifdef HAVE_POPPLER_GLIB
 166     if (0) {
 167     Internal::PdfInputCairo::init();
 168     }
 169 #endif
 170 #ifdef WIN32
 171     Internal::PrintWin32::init();
 172     Internal::PrintEmfWin32::init();
 173     Internal::EmfWin32::init();
 174 #endif
 175     Internal::PovOutput::init();
 176     Internal::JavaFXOutput::init();
 177     Internal::OdfOutput::init();
 178     Internal::PrintLatex::init();
 179     Internal::LatexOutput::init();
 180 #ifdef WITH_LIBWPG
 181     Internal::WpgInput::init();
 182 #endif
 183
 184     /* Effects */
 185     Internal::BlurEdge::init();
 186     Internal::GimpGrad::init();
 187     Internal::Grid::init();
 188
 189     /* Raster Effects */
 190 #ifdef WITH_IMAGE_MAGICK
 191     Internal::Bitmap::AdaptiveThreshold::init();
 192     Internal::Bitmap::AddNoise::init();
 193     Internal::Bitmap::Blur::init();
 194     Internal::Bitmap::Channel::init();
 195     Internal::Bitmap::Charcoal::init();
 196     Internal::Bitmap::Colorize::init();
 197     Internal::Bitmap::Contrast::init();
 198     Internal::Bitmap::CycleColormap::init();
 199     Internal::Bitmap::Edge::init();
 200     Internal::Bitmap::Despeckle::init();
 201     Internal::Bitmap::Emboss::init();
 202     Internal::Bitmap::Enhance::init();
 203     Internal::Bitmap::Equalize::init();
 204     Internal::Bitmap::GaussianBlur::init();
 205     Internal::Bitmap::Implode::init();
 206     Internal::Bitmap::Level::init();
 207     Internal::Bitmap::LevelChannel::init();
 208     Internal::Bitmap::MedianFilter::init();
 209     Internal::Bitmap::Modulate::init();
 210     Internal::Bitmap::Negate::init();
 211     Internal::Bitmap::Normalize::init();
 212     Internal::Bitmap::OilPaint::init();
 213     Internal::Bitmap::Opacity::init();
 214     Internal::Bitmap::Raise::init();
 215     Internal::Bitmap::ReduceNoise::init();
 216     Internal::Bitmap::Sample::init();
 217     Internal::Bitmap::Shade::init();
 218     Internal::Bitmap::Sharpen::init();
 219     Internal::Bitmap::Solarize::init();
 220     Internal::Bitmap::Spread::init();
 221     Internal::Bitmap::Swirl::init();
 222     //Internal::Bitmap::Threshold::init();
 223     Internal::Bitmap::Unsharpmask::init();
 224     Internal::Bitmap::Wave::init();
 225 #endif /* WITH_IMAGE_MAGICK */
 226
 227         Internal::Filter::Filter::filters_all();
 228
 229     /* Load search path for extensions */
 230     if (Inkscape::Extension::Extension::search_path.size() == 0)
 231     {
 232         Inkscape::Extension::Extension::search_path.push_back(profile_path("extensions"));
 233
 234         Inkscape::Extension::Extension::search_path.push_back(g_strdup(INKSCAPE_EXTENSIONDIR));
 235
 236     }
 237
 238     for (unsigned int i=0; i<Inkscape::Extension::Extension::search_path.size(); i++) {
 239         build_module_from_dir(Inkscape::Extension::Extension::search_path[i]);
 240     }
 241
 242     /* this is at the very end because it has several catch-alls
 243      * that are possibly over-ridden by other extensions (such as
 244      * svgz)
 245      */
 246     Internal::GdkpixbufInput::init();
 247
 248     /* now we need to check and make sure everyone is happy */
 249     check_extensions();
 250
 251     /* This is a hack to deal with updating saved outdated module
 252      * names in the prefs...
 253      */
 254     update_pref("/dialogs/save_as/default",
 255                 SP_MODULE_KEY_OUTPUT_SVG_INKSCAPE
 256                 // Inkscape::Extension::db.get_output_list()
 257         );
 258 }
 259
 260 /**
 261  * \return    none
 262  * \brief     This function parses a directory for files of SP_MODULE_EXTENSION
 263  *            type and loads them.
 264  * \param     dirname  The directory that should be searched for modules
 265  *
 266  * Here is just a basic function that moves through a directory.  It looks at every entry, and
 267  * compares its filename with SP_MODULE_EXTENSION.  Of those that pass, build_from_file is called
 268  * with their filenames.
 269  */
 270 static void
 271 build_module_from_dir(gchar const *dirname)
 272 {
 273     if (!dirname) {
 274         g_warning(_("Null external module directory name.  Modules will not be loaded."));
 275         return;
 276     }
 277
 278     if (!Glib::file_test(std::string(dirname), Glib::FILE_TEST_EXISTS | Glib::FILE_TEST_IS_DIR)) {
 279         return;
 280     }
 281
 282     //# Hopefully doing this the Glib way is portable
 283
 284     GError *err;
 285     GDir *directory = g_dir_open(dirname, 0, &err);
 286     if (!directory) {
 287         gchar *safeDir = Inkscape::IO::sanitizeString(dirname);
 288         g_warning(_("Modules directory (%s) is unavailable.  External modules in that directory will not be loaded."), safeDir);
 289         g_free(safeDir);
 290         return;
 291     }
 292
 293     gchar *filename;
 294     while ((filename = (gchar *)g_dir_read_name(directory)) != NULL) {
 295         if (strlen(filename) < strlen(SP_MODULE_EXTENSION)) {
 296             continue;
 297         }
 298
 299         if (strcmp(SP_MODULE_EXTENSION, filename + (strlen(filename) - strlen(SP_MODULE_EXTENSION)))) {
 300             continue;
 301         }
 302
 303         gchar *pathname = g_build_filename(dirname, filename, NULL);
 304         build_from_file(pathname);
 305         g_free(pathname);
 306     }
 307
 308     g_dir_close(directory);
 309
 310         return;
 311 }
 312
 313
 314 static void
 315 check_extensions_internal(Extension *in_plug, gpointer in_data)
 316 {
 317     int *count = (int *)in_data;
 318
 319     if (in_plug == NULL) return;
 320     if (!in_plug->deactivated() && !in_plug->check()) {
 321          in_plug->deactivate();
 322         (*count)++;
 323     }
 324 }
 325
 326 static void
 327 check_extensions()
 328 {
 329     int count = 1;
 330     bool anyfail = false;
 331     // int pass = 0;
 332
 333     Inkscape::Extension::Extension::error_file_open();
 334     while (count != 0) {
 335         count = 0;
 336         db.foreach(check_extensions_internal, (gpointer)&count);
 337         if (count != 0) anyfail = true;
 338     }
 339     Inkscape::Extension::Extension::error_file_close();
 340 }
 341
 342 } } /* namespace Inkscape::Extension */
 343
 344
 345 /*
 346   Local Variables:
 347   mode:c++
 348   c-file-style:"stroustrup"
 349   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 350   indent-tabs-mode:nil
 351   fill-column:99
 352   End:
 353 */
 354 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :