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