~centralelyon2010/inkscape/imagelinks2

/** @file
 * @brief Legacy interface to main application
 */
/* Authors:
 *   Lauris Kaplinski <lauris@kaplinski.com>
 *   bulia byak <buliabyak@users.sf.net>
 *
 * Copyright (C) 1999-2005 authors
 * g++ port Copyright (C) 2003 Nathan Hurst
 *
 * Released under GNU GPL, read the file 'COPYING' for more information
 */

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <errno.h>

#include <map>
#include "debug/simple-event.h"
#include "debug/event-tracker.h"

#ifndef WIN32
# define HAS_PROC_SELF_EXE  //to get path of executable
#else

#define _WIN32_IE 0x0400
//#define HAS_SHGetSpecialFolderPath
#define HAS_SHGetSpecialFolderLocation
#define HAS_GetModuleFileName
# include <shlobj.h>
#endif

#include <cstring>
#include <glib/gstdio.h>
#include <glib.h>
#include <glibmm/i18n.h>
#include <gtk/gtk.h>
#include <gtkmm/messagedialog.h>
#include <signal.h>
#include <string>
#include "desktop.h"
#include "desktop-handles.h"
#include "device-manager.h"
#include "document.h"
#include "event-context.h"
#include "extension/db.h"
#include "extension/init.h"
#include "extension/output.h"
#include "extension/system.h"
//#include "helper/sp-marshal.h"
#include "inkscape-private.h"
#include "io/sys.h"
#include "message-stack.h"
#include "preferences.h"
#include "resource-manager.h"
#include "selection.h"
#include "ui/dialog/debug.h"
#include "xml/repr.h"

static Inkscape::Application *inkscape = NULL;

/* Backbones of configuration xml data */
#include "menus-skeleton.h"

enum {
    MODIFY_SELECTION, // global: one of selections modified
    CHANGE_SELECTION, // global: one of selections changed
    CHANGE_SUBSELECTION, // global: one of subselections (text selection, gradient handle, etc) changed
    SET_SELECTION, // global: one of selections set
    SET_EVENTCONTEXT, // tool switched
    ACTIVATE_DESKTOP, // some desktop got focus
    DEACTIVATE_DESKTOP, // some desktop lost focus
    SHUTDOWN_SIGNAL, // inkscape is quitting
    DIALOGS_HIDE, // user pressed F12
    DIALOGS_UNHIDE, // user pressed F12
    EXTERNAL_CHANGE, // a document was changed by some external means (undo or XML editor); this
                     // may not be reflected by a selection change and thus needs a separate signal
    LAST_SIGNAL
};

#define DESKTOP_IS_ACTIVE(d) ((d) == inkscape->desktops->data)


/*################################
# FORWARD DECLARATIONS
################################*/

static void inkscape_class_init (Inkscape::ApplicationClass *klass);
static void inkscape_init (SPObject *object);
static void inkscape_dispose (GObject *object);

static void inkscape_activate_desktop_private (Inkscape::Application *inkscape, SPDesktop *desktop);
static void inkscape_deactivate_desktop_private (Inkscape::Application *inkscape, SPDesktop *desktop);

struct Inkscape::Application {
    GObject object;
    Inkscape::XML::Document *menus;
    std::map<SPDocument *, int> document_set;
    GSList *desktops;
    gchar *argv0;
    gboolean dialogs_toggle;
    gboolean use_gui;         // may want to consider a virtual function
                              // for overriding things like the warning dlg's
    guint mapalt;
    guint trackalt;
};

struct Inkscape::ApplicationClass {
    GObjectClass object_class;

    /* Signals */
    void (* change_selection) (Inkscape::Application * inkscape, Inkscape::Selection * selection);
    void (* change_subselection) (Inkscape::Application * inkscape, SPDesktop *desktop);
    void (* modify_selection) (Inkscape::Application * inkscape, Inkscape::Selection * selection, guint flags);
    void (* set_selection) (Inkscape::Application * inkscape, Inkscape::Selection * selection);
    void (* set_eventcontext) (Inkscape::Application * inkscape, SPEventContext * eventcontext);
    void (* activate_desktop) (Inkscape::Application * inkscape, SPDesktop * desktop);
    void (* deactivate_desktop) (Inkscape::Application * inkscape, SPDesktop * desktop);
    void (* destroy_document) (Inkscape::Application *inkscape, SPDocument *doc);
    void (* color_set) (Inkscape::Application *inkscape, SPColor *color, double opacity);
    void (* shut_down) (Inkscape::Application *inkscape);
    void (* dialogs_hide) (Inkscape::Application *inkscape);
    void (* dialogs_unhide) (Inkscape::Application *inkscape);
    void (* external_change) (Inkscape::Application *inkscape);
};

static GObjectClass * parent_class;
static guint inkscape_signals[LAST_SIGNAL] = {0};

static void (* segv_handler) (int) = SIG_DFL;
static void (* abrt_handler) (int) = SIG_DFL;
static void (* fpe_handler)  (int) = SIG_DFL;
static void (* ill_handler)  (int) = SIG_DFL;
#ifndef WIN32
static void (* bus_handler)  (int) = SIG_DFL;
#endif

#define INKSCAPE_PROFILE_DIR "inkscape"
#define INKSCAPE_PROFILE_DIR_047DEV "Inkscape"
#define INKSCAPE_LEGACY_PROFILE_DIR ".inkscape"
#define MENUS_FILE "menus.xml"


/**
 *  Retrieves the GType for the Inkscape Application object.
 */
GType
inkscape_get_type (void)
{
    static GType type = 0;
    if (!type) {
        GTypeInfo info = {
            sizeof (Inkscape::ApplicationClass),
            NULL, NULL,
            (GClassInitFunc) inkscape_class_init,
            NULL, NULL,
            sizeof (Inkscape::Application),
            4,
            (GInstanceInitFunc) inkscape_init,
            NULL
        };
        type = g_type_register_static (G_TYPE_OBJECT, "Inkscape_Application", &info, (GTypeFlags)0);
    }
    return type;
}


/**
 *  Initializes the inkscape class, registering all of its signal handlers
 *  and virtual functions
 */
static void
inkscape_class_init (Inkscape::ApplicationClass * klass)
{
    GObjectClass * object_class;

    object_class = (GObjectClass *) klass;

    parent_class = (GObjectClass *)g_type_class_peek_parent (klass);

    inkscape_signals[MODIFY_SELECTION] = g_signal_new ("modify_selection",
                               G_TYPE_FROM_CLASS (klass),
                               G_SIGNAL_RUN_FIRST,
                               G_STRUCT_OFFSET (Inkscape::ApplicationClass, modify_selection),
                               NULL, NULL,
                               gtk_marshal_VOID__POINTER_UINT,
                               G_TYPE_NONE, 2,
                               G_TYPE_POINTER, G_TYPE_UINT);
    inkscape_signals[CHANGE_SELECTION] = g_signal_new ("change_selection",
                               G_TYPE_FROM_CLASS (klass),
                               G_SIGNAL_RUN_FIRST,
                               G_STRUCT_OFFSET (Inkscape::ApplicationClass, change_selection),
                               NULL, NULL,
                               g_cclosure_marshal_VOID__POINTER,
                               G_TYPE_NONE, 1,
                               G_TYPE_POINTER);
    inkscape_signals[CHANGE_SUBSELECTION] = g_signal_new ("change_subselection",
                               G_TYPE_FROM_CLASS (klass),
                               G_SIGNAL_RUN_FIRST,
                               G_STRUCT_OFFSET (Inkscape::ApplicationClass, change_subselection),
                               NULL, NULL,
                               g_cclosure_marshal_VOID__POINTER,
                               G_TYPE_NONE, 1,
                               G_TYPE_POINTER);
    inkscape_signals[SET_SELECTION] =    g_signal_new ("set_selection",
                               G_TYPE_FROM_CLASS (klass),
                               G_SIGNAL_RUN_FIRST,
                               G_STRUCT_OFFSET (Inkscape::ApplicationClass, set_selection),
                               NULL, NULL,
                               g_cclosure_marshal_VOID__POINTER,
                               G_TYPE_NONE, 1,
                               G_TYPE_POINTER);
    inkscape_signals[SET_EVENTCONTEXT] = g_signal_new ("set_eventcontext",
                               G_TYPE_FROM_CLASS (klass),
                               G_SIGNAL_RUN_FIRST,
                               G_STRUCT_OFFSET (Inkscape::ApplicationClass, set_eventcontext),
                               NULL, NULL,
                               g_cclosure_marshal_VOID__POINTER,
                               G_TYPE_NONE, 1,
                               G_TYPE_POINTER);
    inkscape_signals[ACTIVATE_DESKTOP] = g_signal_new ("activate_desktop",
                               G_TYPE_FROM_CLASS (klass),
                               G_SIGNAL_RUN_FIRST,
                               G_STRUCT_OFFSET (Inkscape::ApplicationClass, activate_desktop),
                               NULL, NULL,
                               g_cclosure_marshal_VOID__POINTER,
                               G_TYPE_NONE, 1,
                               G_TYPE_POINTER);
    inkscape_signals[DEACTIVATE_DESKTOP] = g_signal_new ("deactivate_desktop",
                               G_TYPE_FROM_CLASS (klass),
                               G_SIGNAL_RUN_FIRST,
                               G_STRUCT_OFFSET (Inkscape::ApplicationClass, deactivate_desktop),
                               NULL, NULL,
                               g_cclosure_marshal_VOID__POINTER,
                               G_TYPE_NONE, 1,
                               G_TYPE_POINTER);
    inkscape_signals[SHUTDOWN_SIGNAL] =        g_signal_new ("shut_down",
                               G_TYPE_FROM_CLASS (klass),
                               G_SIGNAL_RUN_FIRST,
                               G_STRUCT_OFFSET (Inkscape::ApplicationClass, shut_down),
                               NULL, NULL,
                               g_cclosure_marshal_VOID__VOID,
                               G_TYPE_NONE, 0);
    inkscape_signals[DIALOGS_HIDE] =        g_signal_new ("dialogs_hide",
                               G_TYPE_FROM_CLASS (klass),
                               G_SIGNAL_RUN_FIRST,
                               G_STRUCT_OFFSET (Inkscape::ApplicationClass, dialogs_hide),
                               NULL, NULL,
                               g_cclosure_marshal_VOID__VOID,
                               G_TYPE_NONE, 0);
    inkscape_signals[DIALOGS_UNHIDE] =        g_signal_new ("dialogs_unhide",
                               G_TYPE_FROM_CLASS (klass),
                               G_SIGNAL_RUN_FIRST,
                               G_STRUCT_OFFSET (Inkscape::ApplicationClass, dialogs_unhide),
                               NULL, NULL,
                               g_cclosure_marshal_VOID__VOID,
                               G_TYPE_NONE, 0);
    inkscape_signals[EXTERNAL_CHANGE] =   g_signal_new ("external_change",
                               G_TYPE_FROM_CLASS (klass),
                               G_SIGNAL_RUN_FIRST,
                               G_STRUCT_OFFSET (Inkscape::ApplicationClass, external_change),
                               NULL, NULL,
                               g_cclosure_marshal_VOID__VOID,
                               G_TYPE_NONE, 0);

    object_class->dispose = inkscape_dispose;

    klass->activate_desktop = inkscape_activate_desktop_private;
    klass->deactivate_desktop = inkscape_deactivate_desktop_private;
}

#ifdef WIN32
typedef int uid_t;
#define getuid() 0
#endif

/**
 * static gint inkscape_autosave(gpointer);
 *
 * Callback passed to g_timeout_add_seconds()
 * Responsible for autosaving all open documents
 */
static gint inkscape_autosave(gpointer)
{
    if (inkscape->document_set.empty()) { // nothing to autosave
        return TRUE;
    }
    Inkscape::Preferences *prefs = Inkscape::Preferences::get();

    // Use UID for separating autosave-documents between users if directory is multiuser
    uid_t uid = getuid();

    Glib::ustring autosave_dir;
    {
        Glib::ustring tmp = prefs->getString("/options/autosave/path");
        if (!tmp.empty()) {
            autosave_dir = tmp;
        } else {
            autosave_dir = Glib::get_tmp_dir();
        }
    }

    GDir *autosave_dir_ptr = g_dir_open(autosave_dir.c_str(), 0, NULL);
    if( !autosave_dir_ptr ){
        g_warning("Cannot open autosave directory!");
        return TRUE;
    }

    time_t sptime = time(NULL);
    struct tm *sptm = localtime(&sptime);
    gchar sptstr[256];
    strftime(sptstr, 256, "%Y_%m_%d_%H_%M_%S", sptm);

    gint autosave_max = prefs->getInt("/options/autosave/max", 10);

    gint docnum = 0;

    SP_ACTIVE_DESKTOP->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Autosaving documents..."));
    for (std::map<SPDocument*,int>::iterator iter = inkscape->document_set.begin();
          iter != inkscape->document_set.end();
          ++iter) {

        SPDocument *doc = iter->first;

        ++docnum;

        Inkscape::XML::Node *repr = doc->getReprRoot();
        // g_debug("Document %d: \"%s\" %s", docnum, doc ? doc->getName() : "(null)", doc ? (doc->isModifiedSinceSave() ? "(dirty)" : "(clean)") : "(null)");

        if (doc->isModifiedSinceSave()) {
            gchar *oldest_autosave = 0;
            const gchar  *filename = 0;
            struct stat sb;
            time_t min_time = 0;
            gint count = 0;

            // Look for previous autosaves
            gchar* baseName = g_strdup_printf( "inkscape-autosave-%d", uid );
            g_dir_rewind(autosave_dir_ptr);
            while( (filename = g_dir_read_name(autosave_dir_ptr)) != NULL ){
                if ( strncmp(filename, baseName, strlen(baseName)) == 0 ){
                    gchar* full_path = g_build_filename( autosave_dir.c_str(), filename, NULL );
                    if ( g_stat(full_path, &sb) != -1 ) {
                        if ( difftime(sb.st_ctime, min_time) < 0 || min_time == 0 ){
                            min_time = sb.st_ctime;
                            if ( oldest_autosave ) {
                                g_free(oldest_autosave);
                            }
                            oldest_autosave = g_strdup(full_path);
                        }
                        count ++;
                    }
                    g_free(full_path);
                }
            }

            // g_debug("%d previous autosaves exists. Max = %d", count, autosave_max);

            // Have we reached the limit for number of autosaves?
            if ( count >= autosave_max ){
                // Remove the oldest file
                if ( oldest_autosave ) {
                    unlink(oldest_autosave);
                }
            }

            if ( oldest_autosave ) {
                g_free(oldest_autosave);
                oldest_autosave = 0;
            }


            // Set the filename we will actually save to
            g_free(baseName);
            baseName = g_strdup_printf("inkscape-autosave-%d-%s-%03d.svg", uid, sptstr, docnum);
            gchar* full_path = g_build_filename(autosave_dir.c_str(), baseName, NULL);
            g_free(baseName);
            baseName = 0;

            // g_debug("Filename: %s", full_path);

            // Try to save the file
            FILE *file = Inkscape::IO::fopen_utf8name(full_path, "w");
            gchar *errortext = 0;
            if (file) {
                try{
                    sp_repr_save_stream(repr->document(), file, SP_SVG_NS_URI);
                } catch (Inkscape::Extension::Output::no_extension_found &e) {
                    errortext = g_strdup(_("Autosave failed! Could not find inkscape extension to save document."));
                } catch (Inkscape::Extension::Output::save_failed &e) {
                    gchar *safeUri = Inkscape::IO::sanitizeString(full_path);
                    errortext = g_strdup_printf(_("Autosave failed! File %s could not be saved."), safeUri);
                    g_free(safeUri);
                }
                fclose(file);
            }
            else {
                gchar *safeUri = Inkscape::IO::sanitizeString(full_path);
                errortext = g_strdup_printf(_("Autosave failed! File %s could not be saved."), safeUri);
                g_free(safeUri);
            }

            if (errortext) {
                SP_ACTIVE_DESKTOP->messageStack()->flash(Inkscape::ERROR_MESSAGE, errortext);
                g_warning("%s", errortext);
                g_free(errortext);
            }

            g_free(full_path);
        }
    }
    g_dir_close(autosave_dir_ptr);

    SP_ACTIVE_DESKTOP->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Autosave complete."));

    return TRUE;
}

void inkscape_autosave_init()
{
    static guint32 autosave_timeout_id = 0;
    Inkscape::Preferences *prefs = Inkscape::Preferences::get();

    // Turn off any previously initiated timeouts
    if ( autosave_timeout_id ) {
        g_source_remove(autosave_timeout_id);
        autosave_timeout_id = 0;
    }

    // g_debug("options.autosave.enable = %d", prefs->getBool("/options/autosave/enable", true));
    // Is autosave enabled?
    if (!prefs->getBool("/options/autosave/enable", true)){
        autosave_timeout_id = 0;
    } else {
        // Turn on autosave
        guint32 timeout = prefs->getInt("/options/autosave/interval", 10) * 60;
        // g_debug("options.autosave.interval = %d", prefs->getInt("/options/autosave/interval", 10));
        autosave_timeout_id = g_timeout_add_seconds(timeout, inkscape_autosave, NULL);
    }
}


static void
inkscape_init (SPObject * object)
{
    if (!inkscape) {
        inkscape = (Inkscape::Application *) object;
    } else {
        g_assert_not_reached ();
    }

    new (&inkscape->document_set) std::map<SPDocument *, int>();

    inkscape->menus = sp_repr_read_mem (_(menus_skeleton), MENUS_SKELETON_SIZE, NULL);
    inkscape->desktops = NULL;
    inkscape->dialogs_toggle = TRUE;
    inkscape->mapalt = GDK_MOD1_MASK;
    inkscape->trackalt = FALSE;
}

static void
inkscape_dispose (GObject *object)
{
    Inkscape::Application *inkscape = (Inkscape::Application *) object;

    g_assert (!inkscape->desktops);

    Inkscape::Preferences::unload();

    if (inkscape->menus) {
        /* fixme: This is not the best place */
        Inkscape::GC::release(inkscape->menus);
        inkscape->menus = NULL;
    }

    inkscape->document_set.~map();

    G_OBJECT_CLASS (parent_class)->dispose (object);

    gtk_main_quit ();
}


void
inkscape_ref (void)
{
    if (inkscape)
        g_object_ref (G_OBJECT (inkscape));
}


void
inkscape_unref (void)
{
    if (inkscape)
        g_object_unref (G_OBJECT (inkscape));
}

/* returns the mask of the keyboard modifier to map to Alt, zero if no mapping */
/* Needs to be a guint because gdktypes.h does not define a 'no-modifier' value */
guint
inkscape_mapalt() {
    return inkscape->mapalt;
}

/* Sets the keyboard modifer to map to Alt. Zero switches off mapping, as does '1', which is the default */
void inkscape_mapalt(guint maskvalue)
{
    if(maskvalue<2 || maskvalue> 5 ){  /* MOD5 is the highest defined in gdktypes.h */
        inkscape->mapalt=0;
    }else{
        inkscape->mapalt=(GDK_MOD1_MASK << (maskvalue-1));
    }
}

guint
inkscape_trackalt() {
    return inkscape->trackalt;
}

void inkscape_trackalt(guint trackvalue)
{
    inkscape->trackalt = trackvalue;
}


static void
inkscape_activate_desktop_private (Inkscape::Application */*inkscape*/, SPDesktop *desktop)
{
    desktop->set_active (true);
}


static void
inkscape_deactivate_desktop_private (Inkscape::Application */*inkscape*/, SPDesktop *desktop)
{
    desktop->set_active (false);
}


/* fixme: This is EVIL, and belongs to main after all */

#define SP_INDENT 8


static bool crashIsHappening = false;

bool inkscapeIsCrashing()
{
    return crashIsHappening;
}

static void
inkscape_crash_handler (int /*signum*/)
{
    using Inkscape::Debug::SimpleEvent;
    using Inkscape::Debug::EventTracker;
    using Inkscape::Debug::Logger;

    static gint recursion = FALSE;

    /*
     * reset all signal handlers: any further crashes should just be allowed
     * to crash normally.
     * */
    signal (SIGSEGV, segv_handler );
    signal (SIGABRT, abrt_handler );
    signal (SIGFPE,  fpe_handler  );
    signal (SIGILL,  ill_handler  );
#ifndef WIN32
    signal (SIGBUS,  bus_handler  );
#endif

    /* Stop bizarre loops */
    if (recursion) {
        abort ();
    }
    recursion = TRUE;

    crashIsHappening = true;

    EventTracker<SimpleEvent<Inkscape::Debug::Event::CORE> > tracker("crash");
    tracker.set<SimpleEvent<> >("emergency-save");

    fprintf(stderr, "\nEmergency save activated!\n");

    time_t sptime = time (NULL);
    struct tm *sptm = localtime (&sptime);
    gchar sptstr[256];
    strftime (sptstr, 256, "%Y_%m_%d_%H_%M_%S", sptm);

    gint count = 0;
    gchar *curdir = g_get_current_dir(); // This one needs to be freed explicitly
    gchar *inkscapedir = g_path_get_dirname(INKSCAPE->argv0); // Needs to be freed
    GSList *savednames = NULL;
    GSList *failednames = NULL;
    for (std::map<SPDocument*,int>::iterator iter = inkscape->document_set.begin();
          iter != inkscape->document_set.end();
          ++iter) {
        SPDocument *doc = iter->first;
        Inkscape::XML::Node *repr;
        repr = doc->getReprRoot();
        if (doc->isModifiedSinceSave()) {
            const gchar *docname;

            /* originally, the document name was retrieved from
             * the sodipod:docname attribute */
            docname = doc->getName();
            if (docname) {
                /* Removes an emergency save suffix if present: /(.*)\.[0-9_]*\.[0-9_]*\.[~\.]*$/\1/ */
                const char* d0 = strrchr ((char*)docname, '.');
                if (d0 && (d0 > docname)) {
                    const char* d = d0;
                    unsigned int dots = 0;
                    while ((isdigit (*d) || *d=='_' || *d=='.') && d>docname && dots<2) {
                        d -= 1;
                        if (*d=='.') dots++;
                    }
                    if (*d=='.' && d>docname && dots==2) {
                        char n[64];
                        size_t len = MIN (d - docname, 63);
                        memcpy (n, docname, len);
                        n[len] = '\0';
                        docname = n;
                    }
                }
            }
            if (!docname || !*docname) docname = "emergency";

            // Emergency filename
            char c[1024];
            g_snprintf (c, 1024, "%.256s.%s.%d.svg", docname, sptstr, count);

            // Find a location
            const char* locations[] = {
                doc->getBase(),
                g_get_home_dir(),
                g_get_tmp_dir(),
                curdir,
                inkscapedir
            };
            FILE *file = 0;
            for(size_t i=0; i<sizeof(locations)/sizeof(*locations); i++) {
                if (!locations[i]) continue; // It seems to be okay, but just in case
                gchar * filename = g_build_filename(locations[i], c, NULL);
                Inkscape::IO::dump_fopen_call(filename, "E");
                file = Inkscape::IO::fopen_utf8name(filename, "w");
                if (file) {
                    g_snprintf (c, 1024, "%s", filename); // we want the complete path to be stored in c (for reporting purposes)
                    break;
                }
            }

            // Save
            if (file) {
                sp_repr_save_stream (repr->document(), file, SP_SVG_NS_URI);
                savednames = g_slist_prepend (savednames, g_strdup (c));
                fclose (file);
            } else {
                failednames = g_slist_prepend (failednames, (doc->getName()) ? g_strdup(doc->getName()) : g_strdup (_("Untitled document")));
            }
            count++;
        }
    }
    g_free(curdir);
    g_free(inkscapedir);

    savednames = g_slist_reverse (savednames);
    failednames = g_slist_reverse (failednames);
    if (savednames) {
        fprintf (stderr, "\nEmergency save document locations:\n");
        for (GSList *l = savednames; l != NULL; l = l->next) {
            fprintf (stderr, "  %s\n", (gchar *) l->data);
        }
    }
    if (failednames) {
        fprintf (stderr, "\nFailed to do emergency save for documents:\n");
        for (GSList *l = failednames; l != NULL; l = l->next) {
            fprintf (stderr, "  %s\n", (gchar *) l->data);
        }
    }

    // do not save the preferences since they can be in a corrupted state
    Inkscape::Preferences::unload(false);

    fprintf (stderr, "Emergency save completed. Inkscape will close now.\n");
    fprintf (stderr, "If you can reproduce this crash, please file a bug at www.inkscape.org\n");
    fprintf (stderr, "with a detailed description of the steps leading to the crash, so we can fix it.\n");

    /* Show nice dialog box */

    char const *istr = _("Inkscape encountered an internal error and will close now.\n");
    char const *sstr = _("Automatic backups of unsaved documents were done to the following locations:\n");
    char const *fstr = _("Automatic backup of the following documents failed:\n");
    gint nllen = strlen ("\n");
    gint len = strlen (istr) + strlen (sstr) + strlen (fstr);
    for (GSList *l = savednames; l != NULL; l = l->next) {
        len = len + SP_INDENT + strlen ((gchar *) l->data) + nllen;
    }
    for (GSList *l = failednames; l != NULL; l = l->next) {
        len = len + SP_INDENT + strlen ((gchar *) l->data) + nllen;
    }
    len += 1;
    gchar *b = g_new (gchar, len);
    gint pos = 0;
    len = strlen (istr);
    memcpy (b + pos, istr, len);
    pos += len;
    if (savednames) {
        len = strlen (sstr);
        memcpy (b + pos, sstr, len);
        pos += len;
        for (GSList *l = savednames; l != NULL; l = l->next) {
            memset (b + pos, ' ', SP_INDENT);
            pos += SP_INDENT;
            len = strlen ((gchar *) l->data);
            memcpy (b + pos, l->data, len);
            pos += len;
            memcpy (b + pos, "\n", nllen);
            pos += nllen;
        }
    }
    if (failednames) {
        len = strlen (fstr);
        memcpy (b + pos, fstr, len);
        pos += len;
        for (GSList *l = failednames; l != NULL; l = l->next) {
            memset (b + pos, ' ', SP_INDENT);
            pos += SP_INDENT;
            len = strlen ((gchar *) l->data);
            memcpy (b + pos, l->data, len);
            pos += len;
            memcpy (b + pos, "\n", nllen);
            pos += nllen;
        }
    }
    *(b + pos) = '\0';

    if ( inkscape_get_instance() && inkscape_use_gui() ) {
        GtkWidget *msgbox = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, "%s", b);
        gtk_dialog_run (GTK_DIALOG (msgbox));
        gtk_widget_destroy (msgbox);
    }
    else
    {
        g_message( "Error: %s", b );
    }
    g_free (b);

    tracker.clear();
    Logger::shutdown();

    /* on exit, allow restored signal handler to take over and crash us */
}


class InkErrorHandler : public Inkscape::ErrorReporter {
public:
    InkErrorHandler(bool useGui) : Inkscape::ErrorReporter(),
                                   _useGui(useGui)
    {}
    virtual ~InkErrorHandler() {}

    virtual void handleError( Glib::ustring const& primary, Glib::ustring const& secondary ) const
    {
        if (_useGui) {
            Gtk::MessageDialog err(primary, false, Gtk::MESSAGE_WARNING, Gtk::BUTTONS_OK, true);
            err.set_secondary_text(secondary);
            err.run();
        } else {
            g_message("%s", primary.data());
            g_message("%s", secondary.data());
        }
    }

private:
    bool _useGui;
};

void
inkscape_application_init (const gchar *argv0, gboolean use_gui)
{
    inkscape = (Inkscape::Application *)g_object_new (SP_TYPE_INKSCAPE, NULL);
    /* fixme: load application defaults */

    segv_handler = signal (SIGSEGV, inkscape_crash_handler);
    abrt_handler = signal (SIGABRT, inkscape_crash_handler);
    fpe_handler  = signal (SIGFPE,  inkscape_crash_handler);
    ill_handler  = signal (SIGILL,  inkscape_crash_handler);
#ifndef WIN32
    bus_handler  = signal (SIGBUS,  inkscape_crash_handler);
#endif

    inkscape->use_gui = use_gui;
    inkscape->argv0 = g_strdup(argv0);

    /* Load the preferences and menus */
    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
    InkErrorHandler* handler = new InkErrorHandler(use_gui);
    prefs->setErrorHandler(handler);
    {
        Glib::ustring msg;
        Glib::ustring secondary;
        if (prefs->getLastError( msg, secondary )) {
            handler->handleError(msg, secondary);
        }
    }

    if (use_gui) {
        inkscape_load_menus(inkscape);
        Inkscape::DeviceManager::getManager().loadConfig();
    }
    Inkscape::ResourceManager::getManager();

    /* set language for user interface according setting in preferences */
    Glib::ustring ui_language = prefs->getString("/ui/language");
    if(!ui_language.empty())
    {
        setenv("LANGUAGE", ui_language, 1);
    }

    /* DebugDialog redirection.  On Linux, default to OFF, on Win32, default to ON.
     * Use only if use_gui is enabled
     */
#ifdef WIN32
#define DEFAULT_LOG_REDIRECT true
#else
#define DEFAULT_LOG_REDIRECT false
#endif

    if (use_gui == TRUE && prefs->getBool("/dialogs/debug/redirect", DEFAULT_LOG_REDIRECT))
    {
        Inkscape::UI::Dialog::DebugDialog::getInstance()->captureLogMessages();
    }

    /* Check for global remapping of Alt key */
    if (use_gui)
    {
        inkscape_mapalt(guint(prefs->getInt("/options/mapalt/value", 0)));
        inkscape_trackalt(guint(prefs->getInt("/options/trackalt/value", 0)));
    }

    /* Initialize the extensions */
    Inkscape::Extension::init();

    inkscape_autosave_init();

    return;
}

/**
 *  Returns the current Inkscape::Application global object
 */
Inkscape::Application *
inkscape_get_instance()
{
        return inkscape;
}

gboolean inkscape_use_gui()
{
    return inkscape_get_instance()->use_gui;
}

/**
 *  Menus management
 *
 */
bool inkscape_load_menus( Inkscape::Application * inkscape )
{
    gchar *fn = profile_path(MENUS_FILE);
    gchar *menus_xml = 0;
    gsize len = 0;

    if ( inkscape != inkscape_get_instance() ) {
        g_warning("BAD BAD BAD THINGS");
    }

    if ( g_file_get_contents(fn, &menus_xml, &len, NULL) ) {
        // load the menus_xml file
        inkscape->menus = sp_repr_read_mem(menus_xml, len, NULL);

        g_free(menus_xml);
        menus_xml = 0;
    }
    g_free(fn);
    fn = 0;

    if ( !inkscape->menus ) {
        inkscape->menus = sp_repr_read_mem(menus_skeleton, MENUS_SKELETON_SIZE, NULL);
    }

    return (inkscape->menus != 0);
}


void
inkscape_selection_modified (Inkscape::Selection *selection, guint flags)
{
    g_return_if_fail (selection != NULL);

    if (DESKTOP_IS_ACTIVE (selection->desktop())) {
        g_signal_emit (G_OBJECT (inkscape), inkscape_signals[MODIFY_SELECTION], 0, selection, flags);
    }
}


void
inkscape_selection_changed (Inkscape::Selection * selection)
{
    g_return_if_fail (selection != NULL);

    if (DESKTOP_IS_ACTIVE (selection->desktop())) {
        g_signal_emit (G_OBJECT (inkscape), inkscape_signals[CHANGE_SELECTION], 0, selection);
    }
}

void
inkscape_subselection_changed (SPDesktop *desktop)
{
    g_return_if_fail (desktop != NULL);

    if (DESKTOP_IS_ACTIVE (desktop)) {
        g_signal_emit (G_OBJECT (inkscape), inkscape_signals[CHANGE_SUBSELECTION], 0, desktop);
    }
}


void
inkscape_selection_set (Inkscape::Selection * selection)
{
    g_return_if_fail (selection != NULL);

    if (DESKTOP_IS_ACTIVE (selection->desktop())) {
        g_signal_emit (G_OBJECT (inkscape), inkscape_signals[SET_SELECTION], 0, selection);
        g_signal_emit (G_OBJECT (inkscape), inkscape_signals[CHANGE_SELECTION], 0, selection);
    }
}


void
inkscape_eventcontext_set (SPEventContext * eventcontext)
{
    g_return_if_fail (eventcontext != NULL);
    g_return_if_fail (SP_IS_EVENT_CONTEXT (eventcontext));

    if (DESKTOP_IS_ACTIVE (eventcontext->desktop)) {
        g_signal_emit (G_OBJECT (inkscape), inkscape_signals[SET_EVENTCONTEXT], 0, eventcontext);
    }
}


void
inkscape_add_desktop (SPDesktop * desktop)
{
    g_return_if_fail (desktop != NULL);
    g_return_if_fail (inkscape != NULL);

    g_assert (!g_slist_find (inkscape->desktops, desktop));

    inkscape->desktops = g_slist_prepend (inkscape->desktops, desktop);

    g_signal_emit (G_OBJECT (inkscape), inkscape_signals[ACTIVATE_DESKTOP], 0, desktop);
    g_signal_emit (G_OBJECT (inkscape), inkscape_signals[SET_EVENTCONTEXT], 0, sp_desktop_event_context (desktop));
    g_signal_emit (G_OBJECT (inkscape), inkscape_signals[SET_SELECTION], 0, sp_desktop_selection (desktop));
    g_signal_emit (G_OBJECT (inkscape), inkscape_signals[CHANGE_SELECTION], 0, sp_desktop_selection (desktop));
}



void
inkscape_remove_desktop (SPDesktop * desktop)
{
    g_return_if_fail (desktop != NULL);
    g_return_if_fail (inkscape != NULL);

    g_assert (g_slist_find (inkscape->desktops, desktop));

    if (DESKTOP_IS_ACTIVE (desktop)) {
        g_signal_emit (G_OBJECT (inkscape), inkscape_signals[DEACTIVATE_DESKTOP], 0, desktop);
        if (inkscape->desktops->next != NULL) {
            SPDesktop * new_desktop = (SPDesktop *) inkscape->desktops->next->data;
            inkscape->desktops = g_slist_remove (inkscape->desktops, new_desktop);
            inkscape->desktops = g_slist_prepend (inkscape->desktops, new_desktop);
            g_signal_emit (G_OBJECT (inkscape), inkscape_signals[ACTIVATE_DESKTOP], 0, new_desktop);
            g_signal_emit (G_OBJECT (inkscape), inkscape_signals[SET_EVENTCONTEXT], 0, sp_desktop_event_context (new_desktop));
            g_signal_emit (G_OBJECT (inkscape), inkscape_signals[SET_SELECTION], 0, sp_desktop_selection (new_desktop));
            g_signal_emit (G_OBJECT (inkscape), inkscape_signals[CHANGE_SELECTION], 0, sp_desktop_selection (new_desktop));
        } else {
            g_signal_emit (G_OBJECT (inkscape), inkscape_signals[SET_EVENTCONTEXT], 0, NULL);
            if (sp_desktop_selection(desktop))
                sp_desktop_selection(desktop)->clear();
        }
    }

    inkscape->desktops = g_slist_remove (inkscape->desktops, desktop);

    // if this was the last desktop, shut down the program
    if (inkscape->desktops == NULL) {
        inkscape_exit (inkscape);
    }
}



void
inkscape_activate_desktop (SPDesktop * desktop)
{
    g_return_if_fail (desktop != NULL);
    g_return_if_fail (inkscape != NULL);

    if (DESKTOP_IS_ACTIVE (desktop)) {
        return;
    }

    g_assert (g_slist_find (inkscape->desktops, desktop));

    SPDesktop *current = (SPDesktop *) inkscape->desktops->data;

    g_signal_emit (G_OBJECT (inkscape), inkscape_signals[DEACTIVATE_DESKTOP], 0, current);

    inkscape->desktops = g_slist_remove (inkscape->desktops, desktop);
    inkscape->desktops = g_slist_prepend (inkscape->desktops, desktop);

    g_signal_emit (G_OBJECT (inkscape), inkscape_signals[ACTIVATE_DESKTOP], 0, desktop);
    g_signal_emit (G_OBJECT (inkscape), inkscape_signals[SET_EVENTCONTEXT], 0, sp_desktop_event_context (desktop));
    g_signal_emit (G_OBJECT (inkscape), inkscape_signals[SET_SELECTION], 0, sp_desktop_selection (desktop));
    g_signal_emit (G_OBJECT (inkscape), inkscape_signals[CHANGE_SELECTION], 0, sp_desktop_selection (desktop));
}


/**
 *  Resends ACTIVATE_DESKTOP for current desktop; needed when a new desktop has got its window that dialogs will transientize to
 */
void
inkscape_reactivate_desktop (SPDesktop * desktop)
{
    g_return_if_fail (desktop != NULL);
    g_return_if_fail (inkscape != NULL);

    if (DESKTOP_IS_ACTIVE (desktop))
        g_signal_emit (G_OBJECT (inkscape), inkscape_signals[ACTIVATE_DESKTOP], 0, desktop);
}



SPDesktop *
inkscape_find_desktop_by_dkey (unsigned int dkey)
{
    for (GSList *r = inkscape->desktops; r; r = r->next) {
        if (((SPDesktop *) r->data)->dkey == dkey)
            return ((SPDesktop *) r->data);
    }
    return NULL;
}




unsigned int
inkscape_maximum_dkey()
{
    unsigned int dkey = 0;

    for (GSList *r = inkscape->desktops; r; r = r->next) {
        if (((SPDesktop *) r->data)->dkey > dkey)
            dkey = ((SPDesktop *) r->data)->dkey;
    }

    return dkey;
}



SPDesktop *
inkscape_next_desktop ()
{
    SPDesktop *d = NULL;
    unsigned int dkey_current = ((SPDesktop *) inkscape->desktops->data)->dkey;

    if (dkey_current < inkscape_maximum_dkey()) {
        // find next existing
        for (unsigned int i = dkey_current + 1; i <= inkscape_maximum_dkey(); i++) {
            d = inkscape_find_desktop_by_dkey (i);
            if (d) {
                break;
            }
        }
    } else {
        // find first existing
        for (unsigned int i = 0; i <= inkscape_maximum_dkey(); i++) {
            d = inkscape_find_desktop_by_dkey (i);
            if (d) {
                break;
            }
        }
    }

    g_assert (d);

    return d;
}



SPDesktop *
inkscape_prev_desktop ()
{
    SPDesktop *d = NULL;
    unsigned int dkey_current = ((SPDesktop *) inkscape->desktops->data)->dkey;

    if (dkey_current > 0) {
        // find prev existing
        for (signed int i = dkey_current - 1; i >= 0; i--) {
            d = inkscape_find_desktop_by_dkey (i);
            if (d) {
                break;
            }
        }
    }
    if (!d) {
        // find last existing
        d = inkscape_find_desktop_by_dkey (inkscape_maximum_dkey());
    }

    g_assert (d);

    return d;
}



void
inkscape_switch_desktops_next ()
{
    inkscape_next_desktop()->presentWindow();
}



void
inkscape_switch_desktops_prev ()
{
    inkscape_prev_desktop()->presentWindow();
}



void
inkscape_dialogs_hide ()
{
    g_signal_emit (G_OBJECT (inkscape), inkscape_signals[DIALOGS_HIDE], 0);
    inkscape->dialogs_toggle = FALSE;
}



void
inkscape_dialogs_unhide ()
{
    g_signal_emit (G_OBJECT (inkscape), inkscape_signals[DIALOGS_UNHIDE], 0);
    inkscape->dialogs_toggle = TRUE;
}



void
inkscape_dialogs_toggle ()
{
    if (inkscape->dialogs_toggle) {
        inkscape_dialogs_hide ();
    } else {
        inkscape_dialogs_unhide ();
    }
}

void
inkscape_external_change ()
{
    g_return_if_fail (inkscape != NULL);

    g_signal_emit (G_OBJECT (inkscape), inkscape_signals[EXTERNAL_CHANGE], 0);
}

/**
 * fixme: These need probably signals too
 */
void
inkscape_add_document (SPDocument *document)
{
    g_return_if_fail (document != NULL);

    // try to insert the pair into the list
    if (!(inkscape->document_set.insert(std::make_pair(document, 1)).second)) {
        //insert failed, this key (document) is already in the list
        for (std::map<SPDocument*,int>::iterator iter = inkscape->document_set.begin();
               iter != inkscape->document_set.end();
               ++iter) {
            if (iter->first == document) {
                // found this document in list, increase its count
                iter->second ++;
            }
       }
    }
}


// returns true if this was last reference to this document, so you can delete it
bool
inkscape_remove_document (SPDocument *document)
{
    g_return_val_if_fail (document != NULL, false);

    for (std::map<SPDocument*,int>::iterator iter = inkscape->document_set.begin();
              iter != inkscape->document_set.end();
              ++iter) {
        if (iter->first == document) {
            // found this document in list, decrease its count
            iter->second --;
            if (iter->second < 1) {
                // this was the last one, remove the pair from list
                inkscape->document_set.erase (iter);
                return true;
            } else {
                return false;
            }
        }
    }

    return false;
}

SPDesktop *
inkscape_active_desktop (void)
{
    if (inkscape->desktops == NULL) {
        return NULL;
    }

    return (SPDesktop *) inkscape->desktops->data;
}

SPDocument *
inkscape_active_document (void)
{
    if (SP_ACTIVE_DESKTOP) {
        return sp_desktop_document (SP_ACTIVE_DESKTOP);
    }

    return NULL;
}

bool inkscape_is_sole_desktop_for_document(SPDesktop const &desktop) {
    SPDocument const* document = desktop.doc();
    if (!document) {
        return false;
    }
    for ( GSList *iter = inkscape->desktops ; iter ; iter = iter->next ) {
        SPDesktop *other_desktop=(SPDesktop *)iter->data;
        SPDocument *other_document=other_desktop->doc();
        if ( other_document == document && other_desktop != &desktop ) {
            return false;
        }
    }
    return true;
}

SPEventContext *
inkscape_active_event_context (void)
{
    if (SP_ACTIVE_DESKTOP) {
        return sp_desktop_event_context (SP_ACTIVE_DESKTOP);
    }

    return NULL;
}



/*#####################
# HELPERS
#####################*/

void
inkscape_refresh_display (Inkscape::Application *inkscape)
{
    for (GSList *l = inkscape->desktops; l != NULL; l = l->next) {
        (static_cast<Inkscape::UI::View::View*>(l->data))->requestRedraw();
    }
}


/**
 *  Handler for Inkscape's Exit verb.  This emits the shutdown signal,
 *  saves the preferences if appropriate, and quits.
 */
void
inkscape_exit (Inkscape::Application */*inkscape*/)
{
    g_assert (INKSCAPE);

    //emit shutdown signal so that dialogs could remember layout
    g_signal_emit (G_OBJECT (INKSCAPE), inkscape_signals[SHUTDOWN_SIGNAL], 0);

    Inkscape::Preferences::unload();
    gtk_main_quit ();
}

char *
homedir_path(const char *filename)
{
    static const gchar *homedir = NULL;
    if (!homedir) {
        homedir = g_get_home_dir();
    }
    if (!homedir) {
        homedir = g_path_get_dirname(INKSCAPE->argv0);
    }
    return g_build_filename(homedir, filename, NULL);
}


/**
 * Get, or guess, or decide the location where the preferences.xml
 * file should be located.
 */
gchar *
profile_path(const char *filename)
{
    static const gchar *prefdir = NULL;


    if (!prefdir) {
        // First check for a custom environment variable for a "portable app"
        gchar const *val = g_getenv("INKSCAPE_PORTABLE_PROFILE_DIR");
        if (val) {
            prefdir = g_strdup(val);
        }

#ifdef HAS_SHGetSpecialFolderLocation
        // prefer c:\Documents and Settings\UserName\Application Data\ to
        // c:\Documents and Settings\userName\;
        if (!prefdir) {
            ITEMIDLIST *pidl = 0;
            if ( SHGetSpecialFolderLocation( NULL, CSIDL_APPDATA, &pidl ) == NOERROR ) {
                gchar * utf8Path = NULL;

                {
                    wchar_t pathBuf[MAX_PATH+1];
                    g_assert(sizeof(wchar_t) == sizeof(gunichar2));

                    if ( SHGetPathFromIDListW( pidl, pathBuf ) ) {
                        utf8Path = g_utf16_to_utf8( (gunichar2*)(&pathBuf[0]), -1, NULL, NULL, NULL );
                    }
                }

                if ( utf8Path ) {
                    if (!g_utf8_validate(utf8Path, -1, NULL)) {
                        g_warning( "SHGetPathFromIDListW() resulted in invalid UTF-8");
                        g_free( utf8Path );
                        utf8Path = 0;
                    } else {
                        prefdir = utf8Path;
                    }
                }


                /* not compiling yet...

                // Remember to free the list pointer
                IMalloc * imalloc = 0;
                if ( SHGetMalloc(&imalloc) == NOERROR) {
                    imalloc->lpVtbl->Free( imalloc, pidl );
                    imalloc->lpVtbl->Release( imalloc );
                }
                */
            }

            if (prefdir) {
                prefdir = g_build_filename(prefdir, INKSCAPE_PROFILE_DIR, NULL);
            }
        }
#endif
        if (!prefdir) {
            prefdir = g_build_filename(g_get_user_config_dir(), INKSCAPE_PROFILE_DIR, NULL);
            gchar * legacyDir = homedir_path(INKSCAPE_LEGACY_PROFILE_DIR);
            gchar * dev47Dir = g_build_filename(g_get_user_config_dir(), INKSCAPE_PROFILE_DIR_047DEV, NULL);

            bool needsMigration = ( !Inkscape::IO::file_test( prefdir, G_FILE_TEST_EXISTS ) && Inkscape::IO::file_test( legacyDir, G_FILE_TEST_EXISTS ) );
            if (needsMigration) {
                // TODO here is a point to hook in preference migration
                g_warning("Preferences need to be migrated from 0.46 or older %s to %s", legacyDir, prefdir);
                Inkscape::Preferences::migrate( legacyDir, prefdir );
            }

            bool needsRenameWarning = ( !Inkscape::IO::file_test( prefdir, G_FILE_TEST_EXISTS ) && Inkscape::IO::file_test( dev47Dir, G_FILE_TEST_EXISTS ) );
            if (needsRenameWarning) {
                g_warning("Preferences need to be copied from  %s to %s", legacyDir, prefdir);
            }

            g_free(legacyDir);
            legacyDir = 0;
            g_free(dev47Dir);
            dev47Dir = 0;
            // In case the XDG user config dir of the moment does not yet exist...
            int mode = S_IRWXU;
#ifdef S_IRGRP
            mode |= S_IRGRP;
#endif
#ifdef S_IXGRP
            mode |= S_IXGRP;
#endif
#ifdef S_IXOTH
            mode |= S_IXOTH;
#endif
            if ( g_mkdir_with_parents(prefdir, mode) == -1 ) {
                int problem = errno;
                g_warning("Unable to create profile directory (%s) (%d)", g_strerror(problem), problem);
            } else {
                gchar const *userDirs[] = {"keys", "templates", "icons", "extensions", "palettes", NULL};
                for (gchar const** name = userDirs; *name; ++name) {
                    gchar *dir = g_build_filename(prefdir, *name, NULL);
                    g_mkdir_with_parents(dir, mode);
                    g_free(dir);
                }
            }
        }
    }
    return g_build_filename(prefdir, filename, NULL);
}

Inkscape::XML::Node *
inkscape_get_menus (Inkscape::Application * inkscape)
{
    Inkscape::XML::Node *repr = inkscape->menus->root();
    g_assert (!(strcmp (repr->name(), "inkscape")));
    return repr->firstChild();
}

void
inkscape_get_all_desktops(std::list< SPDesktop* >& listbuf)
{
    for(GSList* l = inkscape->desktops; l != NULL; l = l->next) {
        listbuf.push_back(static_cast< SPDesktop* >(l->data));
    }
}

/*
  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: expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :