moving trunk for module inkscape

(bzr r1)

1 files changed, 243 insertions, 0 deletions

diff --git a/src/extension/init.cpp b/src/extension/init.cpp
new file mode 100644
index 000000000..c913def61
--- /dev/null
+++ b/src/extension/init.cpp
@@ -0,0 +1,243 @@
+/*
+ * This is what gets executed to initialize all of the modules.  For
+ * the internal modules this invovles executing their initialization
+ * functions, for external ones it involves reading their .spmodule
+ * files and bringing them into Sodipodi.
+ *
+ * Authors:
+ *   Ted Gould <ted@gould.cx>
+ *
+ * Copyright (C) 2002-2004 Authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+#include "path-prefix.h"
+
+
+#include "inkscape.h"
+#include <glibmm/i18n.h>
+
+#include "system.h"
+#include "db.h"
+#include "internal/svgz.h"
+#include "internal/ps.h"
+#ifdef WITH_GNOME_PRINT
+# include "internal/gnome.h"
+#endif
+#ifdef WIN32
+# include "internal/win32.h"
+#endif
+#include "internal/ps-out.h"
+#include "internal/pov-out.h"
+#include "internal/latex-pstricks-out.h"
+#include "internal/latex-pstricks.h"
+#include "internal/eps-out.h"
+#include "internal/gdkpixbuf-input.h"
+#include "internal/bluredge.h"
+#include "internal/gimpgrad.h"
+#include "internal/grid.h"
+#include "prefs-utils.h"
+#include "io/sys.h"
+
+extern gboolean inkscape_app_use_gui( Inkscape::Application const *app );
+
+namespace Inkscape {
+namespace Extension {
+
+/** This is the extention that all files are that are pulled from
+    the extension directory and parsed */
+#define SP_MODULE_EXTENSION  "inx"
+
+static void build_module_from_dir(gchar const *dirname);
+static void check_extensions();
+
+/**
+ * \return    none
+ * \brief     Examines the given string preference and checks to see
+ *            that at least one of the registered extensions matches
+ *            it.  If not, a default is assigned.
+ * \param     pref_path        Preference path to load
+ * \param     pref_attr        Attribute to load from the preference
+ * \param     pref_default     Default string to set
+ * \param     extension_family List of extensions to search
+ */
+static void
+update_pref(gchar const *pref_path, gchar const *pref_attr,
+            gchar const *pref_default) // , GSList *extension_family)
+{
+    gchar const *pref = prefs_get_string_attribute(pref_path,pref_attr);
+    /*
+    gboolean missing=TRUE;
+    for (GSList *list = extension_family; list; list = g_slist_next(list)) {
+	g_assert( list->data );
+
+	Inkscape::Extension *extension;
+       	extension = reinterpret_cast<Inkscape::Extension *>(list->data);
+
+        if (!strcmp(extension->get_id(),pref)) missing=FALSE;
+    }
+    */
+    if (!Inkscape::Extension::db.get( pref ) /*missing*/) {
+        prefs_set_string_attribute(pref_path, pref_attr, pref_default);
+    }
+}
+
+/**
+ * Invokes the init routines for internal modules.
+ *
+ * This should be a list of all the internal modules that need to initialized.  This is just a
+ * convinent place to put them.  Also, this function calls build_module_from_dir to parse the
+ * Inkscape extensions directory.
+ */
+void
+init()
+{
+    /* TODO: Change to Internal */
+    Internal::Svg::init();
+    Internal::Svgz::init();
+    Internal::PsOutput::init();
+    Internal::EpsOutput::init();
+    Internal::PrintPS::init();
+#ifdef WITH_GNOME_PRINT
+    Internal::PrintGNOME::init();
+#endif
+#ifdef WIN32
+    Internal::PrintWin32::init();
+#endif
+    Internal::PovOutput::init();
+    Internal::PrintLatex::init();
+    Internal::LatexOutput::init();
+
+    /* Effects */
+    Internal::BlurEdge::init();
+    Internal::GimpGrad::init();
+    Internal::Grid::init();
+    
+    /* Load search path for extensions */
+    if (Inkscape::Extension::Extension::search_path.size() == 0)
+    {
+	Inkscape::Extension::Extension::search_path.push_back(profile_path("extensions"));
+	Inkscape::Extension::Extension::search_path.push_back(g_strdup(INKSCAPE_EXTENSIONDIR));
+    }
+
+    for (unsigned int i=0; i<Inkscape::Extension::Extension::search_path.size(); i++) {
+        build_module_from_dir(Inkscape::Extension::Extension::search_path[i]);
+    }
+
+    /* this is at the very end because it has several catch-alls
+     * that are possibly over-ridden by other extensions (such as
+     * svgz)
+     */
+    Internal::GdkpixbufInput::init();
+
+    /* now we need to check and make sure everyone is happy */
+    check_extensions();
+
+    /* This is a hack to deal with updating saved outdated module
+     * names in the prefs...
+     */
+    update_pref("dialogs.save_as", "default",
+                SP_MODULE_KEY_OUTPUT_SVG_INKSCAPE
+                // Inkscape::Extension::db.get_output_list()
+        );
+}
+
+/**
+ * \return    none
+ * \brief     This function parses a directory for files of SP_MODULE_EXTENSION
+ *            type and loads them.
+ * \param     dirname  The directory that should be searched for modules
+ *
+ * Here is just a basic function that moves through a directory.  It looks at every entry, and
+ * compares its filename with SP_MODULE_EXTENSION.  Of those that pass, build_from_file is called
+ * with their filenames.
+ */
+static void
+build_module_from_dir(gchar const *dirname)
+{
+    if (!dirname) {
+        g_warning(_("Null external module directory name.  Modules will not be loaded."));
+        return;
+    }
+
+    if (!Glib::file_test(std::string(dirname), Glib::FILE_TEST_EXISTS | Glib::FILE_TEST_IS_DIR)) {
+        return;
+    }
+
+    //# Hopefully doing this the Glib way is portable
+        
+    GError *err;
+    GDir *directory = g_dir_open(dirname, 0, &err);
+    if (!directory) {
+        gchar *safeDir = Inkscape::IO::sanitizeString(dirname);
+        g_warning(_("Modules directory (%s) is unavailable.  External modules in that directory will not be loaded."), safeDir);
+        g_free(safeDir);
+        return;
+    }
+
+    gchar *filename;
+    while ((filename = (gchar *)g_dir_read_name(directory)) != NULL) {
+
+        if (strlen(filename) < strlen(SP_MODULE_EXTENSION)) {
+            continue;
+        }
+
+        if (strcmp(SP_MODULE_EXTENSION, filename + (strlen(filename) - strlen(SP_MODULE_EXTENSION)))) {
+            continue;
+        }
+
+        gchar *pathname = g_strdup_printf("%s/%s", dirname, filename);
+        build_from_file(pathname);
+        g_free(pathname);
+    }
+
+    g_dir_close(directory);
+}
+
+
+static void
+check_extensions_internal(Extension *in_plug, gpointer in_data)
+{
+    int *count = (int *)in_data;
+
+    if (in_plug == NULL) return;
+    if (!in_plug->deactivated() && !in_plug->check()) {
+         in_plug->deactivate();
+        (*count)++;
+    }
+}
+
+static void
+check_extensions()
+{
+    int count = 1;
+    bool anyfail = false;
+    // int pass = 0;
+
+    Inkscape::Extension::Extension::error_file_open();
+    while (count != 0) {
+        // printf("Check extensions pass %d\n", pass++);
+        count = 0;
+        db.foreach(check_extensions_internal, (gpointer)&count);
+        if (count != 0) anyfail = true;
+    }
+    Inkscape::Extension::Extension::error_file_close();
+}
+
+} } /* namespace Inkscape::Extension */
+
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :