Code

Merge and cleanup of GSoC C++-ification project.
[inkscape.git] / src / sp-namedview.cpp
index da95a8ab70449d9714719d334d15a3226ad46ee9..59ef4762da6f8433a8d804a942bffb82324e7355 100644 (file)
@@ -1,23 +1,25 @@
-#define __SP_NAMEDVIEW_C__
-
 /*
  * <sodipodi:namedview> implementation
  *
  * Authors:
  *   Lauris Kaplinski <lauris@kaplinski.com>
  *   bulia byak <buliabyak@users.sf.net>
+ *   Jon A. Cruz <jon@joncruz.org>
+ *   Abhishek Sharma
  *
  * Copyright (C) 2006      Johan Engelen <johan@shouraizou.nl>
- * Copyright (C) 1999-2005 Authors
+ * Copyright (C) 1999-2008 Authors
  * Copyright (C) 2000-2001 Ximian, Inc.
  *
  * Released under GNU GPL, read the file 'COPYING' for more information
  */
 
 #include "config.h"
+#include <cstring>
+#include <string>
 
 #include "display/canvas-grid.h"
-#include "display/canvas-axonomgrid.h"
+#include "display/guideline.h"
 #include "helper/units.h"
 #include "svg/svg-color.h"
 #include "xml/repr.h"
 #include "sp-guide.h"
 #include "sp-item-group.h"
 #include "sp-namedview.h"
-#include "prefs-utils.h"
+#include "preferences.h"
 #include "desktop.h"
 #include "conn-avoid-ref.h" // for defaultConnSpacing.
 
-#include "isnan.h" //temp fix for isnan().  include last
+using Inkscape::DocumentUndo;
 
-#define DEFAULTTOLERANCE 0.4
 #define DEFAULTGRIDCOLOR 0x3f3fff25
 #define DEFAULTGRIDEMPCOLOR 0x3f3fff60
 #define DEFAULTGRIDEMPSPACING 5
@@ -52,15 +53,12 @@ static void sp_namedview_release(SPObject *object);
 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value);
 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref);
 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child);
-static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
+static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
 
 static void sp_namedview_setup_guides(SPNamedView * nv);
-
-static void sp_namedview_setup_grid(SPNamedView * nv);
-static void sp_namedview_setup_grid_item(SPNamedView * nv, SPCanvasItem * item);
+static void sp_namedview_show_single_guide(SPGuide* guide, bool show);
 
 static gboolean sp_str_to_bool(const gchar *str);
-static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit);
 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color);
 
 static SPObjectGroupClass * parent_class;
@@ -72,15 +70,15 @@ sp_namedview_get_type()
     if (!namedview_type) {
         GTypeInfo namedview_info = {
             sizeof(SPNamedViewClass),
-            NULL,      /* base_init */
-            NULL,      /* base_finalize */
+            NULL,       /* base_init */
+            NULL,       /* base_finalize */
             (GClassInitFunc) sp_namedview_class_init,
-            NULL,      /* class_finalize */
-            NULL,      /* class_data */
+            NULL,       /* class_finalize */
+            NULL,       /* class_data */
             sizeof(SPNamedView),
-            16,        /* n_preallocs */
+            16, /* n_preallocs */
             (GInstanceInitFunc) sp_namedview_init,
-            NULL,      /* value_table */
+            NULL,       /* value_table */
         };
         namedview_type = g_type_register_static(SP_TYPE_OBJECTGROUP, "SPNamedView", &namedview_info, (GTypeFlags)0);
     }
@@ -108,14 +106,14 @@ static void sp_namedview_class_init(SPNamedViewClass * klass)
 static void sp_namedview_init(SPNamedView *nv)
 {
     nv->editable = TRUE;
-    nv->showgrid = FALSE;
-    nv->gridtype = 0;
     nv->showguides = TRUE;
+    nv->grids_visible = false;
     nv->showborder = TRUE;
     nv->showpageshadow = TRUE;
 
     nv->guides = NULL;
     nv->viewcount = 0;
+    nv->grids = NULL;
 
     nv->default_layer_id = 0;
 
@@ -124,6 +122,94 @@ static void sp_namedview_init(SPNamedView *nv)
     new (&nv->snap_manager) SnapManager(nv);
 }
 
+static void sp_namedview_generate_old_grid(SPNamedView * /*nv*/, SPDocument *document, Inkscape::XML::Node *repr) {
+    bool old_grid_settings_present = false;
+
+    // set old settings
+    const char* gridspacingx    = "1px";
+    const char* gridspacingy    = "1px";
+    const char* gridoriginy     = "0px";
+    const char* gridoriginx     = "0px";
+    const char* gridempspacing  = "5";
+    const char* gridcolor       = "#0000ff";
+    const char* gridempcolor    = "#0000ff";
+    const char* gridopacity     = "0.2";
+    const char* gridempopacity  = "0.4";
+
+    const char* value = NULL;
+    if ((value = repr->attribute("gridoriginx"))) {
+        gridspacingx = value;
+        old_grid_settings_present = true;
+    }
+    if ((value = repr->attribute("gridoriginy"))) {
+        gridoriginy = value;
+        old_grid_settings_present = true;
+    }
+    if ((value = repr->attribute("gridspacingx"))) {
+        gridspacingx = value;
+        old_grid_settings_present = true;
+    }
+    if ((value = repr->attribute("gridspacingy"))) {
+        gridspacingy = value;
+        old_grid_settings_present = true;
+    }
+    if ((value = repr->attribute("gridcolor"))) {
+        gridcolor = value;
+        old_grid_settings_present = true;
+    }
+    if ((value = repr->attribute("gridempcolor"))) {
+        gridempcolor = value;
+        old_grid_settings_present = true;
+    }
+    if ((value = repr->attribute("gridempspacing"))) {
+        gridempspacing = value;
+        old_grid_settings_present = true;
+    }
+    if ((value = repr->attribute("gridopacity"))) {
+        gridopacity = value;
+        old_grid_settings_present = true;
+    }
+    if ((value = repr->attribute("gridempopacity"))) {
+        gridempopacity = value;
+        old_grid_settings_present = true;
+    }
+
+    if (old_grid_settings_present) {
+        // generate new xy grid with the correct settings
+        // first create the child xml node, then hook it to repr. This order is important, to not set off listeners to repr before the new node is complete.
+
+        Inkscape::XML::Document *xml_doc = document->getReprDoc();
+        Inkscape::XML::Node *newnode = xml_doc->createElement("inkscape:grid");
+        newnode->setAttribute("id", "GridFromPre046Settings");
+        newnode->setAttribute("type", Inkscape::CanvasGrid::getSVGName(Inkscape::GRID_RECTANGULAR));
+        newnode->setAttribute("originx", gridoriginx);
+        newnode->setAttribute("originy", gridoriginy);
+        newnode->setAttribute("spacingx", gridspacingx);
+        newnode->setAttribute("spacingy", gridspacingy);
+        newnode->setAttribute("color", gridcolor);
+        newnode->setAttribute("empcolor", gridempcolor);
+        newnode->setAttribute("opacity", gridopacity);
+        newnode->setAttribute("empopacity", gridempopacity);
+        newnode->setAttribute("empspacing", gridempspacing);
+
+        repr->appendChild(newnode);
+        Inkscape::GC::release(newnode);
+
+        // remove all old settings
+        repr->setAttribute("gridoriginx", NULL);
+        repr->setAttribute("gridoriginy", NULL);
+        repr->setAttribute("gridspacingx", NULL);
+        repr->setAttribute("gridspacingy", NULL);
+        repr->setAttribute("gridcolor", NULL);
+        repr->setAttribute("gridempcolor", NULL);
+        repr->setAttribute("gridopacity", NULL);
+        repr->setAttribute("gridempopacity", NULL);
+        repr->setAttribute("gridempspacing", NULL);
+
+//        SPDocumentUndo::done(doc, SP_VERB_DIALOG_NAMEDVIEW, _("Create new grid from pre0.46 grid settings"));
+    }
+}
+
 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
 {
     SPNamedView *nv = (SPNamedView *) object;
@@ -133,65 +219,66 @@ static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape:
         (* ((SPObjectClass *) (parent_class))->build)(object, document, repr);
     }
 
-    sp_object_read_attr(object, "inkscape:document-units");
-    sp_object_read_attr(object, "viewonly");
-    sp_object_read_attr(object, "showgrid");
-    sp_object_read_attr(object, "gridtype");
-    sp_object_read_attr(object, "showguides");
-    sp_object_read_attr(object, "gridtolerance");
-    sp_object_read_attr(object, "guidetolerance");
-    sp_object_read_attr(object, "objecttolerance");
-    sp_object_read_attr(object, "inkscape:has_abs_tolerance");
-    sp_object_read_attr(object, "gridoriginx");
-    sp_object_read_attr(object, "gridoriginy");
-    sp_object_read_attr(object, "gridspacingx");
-    sp_object_read_attr(object, "gridspacingy");
-    sp_object_read_attr(object, "gridanglex");
-    sp_object_read_attr(object, "gridanglez");
-    sp_object_read_attr(object, "gridempspacing");
-    sp_object_read_attr(object, "gridcolor");
-    sp_object_read_attr(object, "gridempcolor");
-    sp_object_read_attr(object, "gridopacity");
-    sp_object_read_attr(object, "gridempopacity");
-    sp_object_read_attr(object, "guidecolor");
-    sp_object_read_attr(object, "guideopacity");
-    sp_object_read_attr(object, "guidehicolor");
-    sp_object_read_attr(object, "guidehiopacity");
-    sp_object_read_attr(object, "showborder");
-    sp_object_read_attr(object, "inkscape:showpageshadow");
-    sp_object_read_attr(object, "borderlayer");
-    sp_object_read_attr(object, "bordercolor");
-    sp_object_read_attr(object, "borderopacity");
-    sp_object_read_attr(object, "pagecolor");
-    sp_object_read_attr(object, "inkscape:pageopacity");
-    sp_object_read_attr(object, "inkscape:pageshadow");
-    sp_object_read_attr(object, "inkscape:zoom");
-    sp_object_read_attr(object, "inkscape:cx");
-    sp_object_read_attr(object, "inkscape:cy");
-    sp_object_read_attr(object, "inkscape:window-width");
-    sp_object_read_attr(object, "inkscape:window-height");
-    sp_object_read_attr(object, "inkscape:window-x");
-    sp_object_read_attr(object, "inkscape:window-y");
-    sp_object_read_attr(object, "inkscape:grid-bbox");
-    sp_object_read_attr(object, "inkscape:guide-bbox");
-    sp_object_read_attr(object, "inkscape:object-bbox");
-    sp_object_read_attr(object, "inkscape:grid-points");
-    sp_object_read_attr(object, "inkscape:guide-points");
-    sp_object_read_attr(object, "inkscape:object-points");
-    sp_object_read_attr(object, "inkscape:object-paths");
-    sp_object_read_attr(object, "inkscape:object-nodes");
-    sp_object_read_attr(object, "inkscape:current-layer");
-    sp_object_read_attr(object, "inkscape:connector-spacing");
+    object->readAttr( "inkscape:document-units" );
+    object->readAttr( "units" );
+    object->readAttr( "viewonly" );
+    object->readAttr( "showguides" );
+    object->readAttr( "showgrid" );
+    object->readAttr( "gridtolerance" );
+    object->readAttr( "guidetolerance" );
+    object->readAttr( "objecttolerance" );
+    object->readAttr( "guidecolor" );
+    object->readAttr( "guideopacity" );
+    object->readAttr( "guidehicolor" );
+    object->readAttr( "guidehiopacity" );
+    object->readAttr( "showborder" );
+    object->readAttr( "inkscape:showpageshadow" );
+    object->readAttr( "borderlayer" );
+    object->readAttr( "bordercolor" );
+    object->readAttr( "borderopacity" );
+    object->readAttr( "pagecolor" );
+    object->readAttr( "inkscape:pageopacity" );
+    object->readAttr( "inkscape:pageshadow" );
+    object->readAttr( "inkscape:zoom" );
+    object->readAttr( "inkscape:cx" );
+    object->readAttr( "inkscape:cy" );
+    object->readAttr( "inkscape:window-width" );
+    object->readAttr( "inkscape:window-height" );
+    object->readAttr( "inkscape:window-x" );
+    object->readAttr( "inkscape:window-y" );
+    object->readAttr( "inkscape:window-maximized" );
+    object->readAttr( "inkscape:snap-global" );
+    object->readAttr( "inkscape:snap-bbox" );
+    object->readAttr( "inkscape:snap-nodes" );
+    object->readAttr( "inkscape:snap-from-guide" );
+    object->readAttr( "inkscape:snap-center" );
+    object->readAttr( "inkscape:snap-smooth-nodes" );
+    object->readAttr( "inkscape:snap-midpoints" );
+    object->readAttr( "inkscape:snap-object-midpoints" );
+    object->readAttr( "inkscape:snap-bbox-edge-midpoints" );
+    object->readAttr( "inkscape:snap-bbox-midpoints" );
+    object->readAttr( "inkscape:snap-to-guides" );
+    object->readAttr( "inkscape:snap-grids" );
+    object->readAttr( "inkscape:snap-intersection-paths" );
+    object->readAttr( "inkscape:object-paths" );
+    object->readAttr( "inkscape:object-nodes" );
+    object->readAttr( "inkscape:bbox-paths" );
+    object->readAttr( "inkscape:bbox-nodes" );
+    object->readAttr( "inkscape:snap-page" );
+    object->readAttr( "inkscape:current-layer" );
+    object->readAttr( "inkscape:connector-spacing" );
 
     /* Construct guideline list */
-
-    for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
+    for (SPObject *o = SP_OBJECT(og)->firstChild() ; o; o = o->getNext() ) {
         if (SP_IS_GUIDE(o)) {
             SPGuide * g = SP_GUIDE(o);
             nv->guides = g_slist_prepend(nv->guides, g);
             g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
         }
     }
+
+    // backwards compatibility with grid settings (pre 0.46)
+    sp_namedview_generate_old_grid(nv, document, repr);
 }
 
 static void sp_namedview_release(SPObject *object)
@@ -203,9 +290,11 @@ static void sp_namedview_release(SPObject *object)
         namedview->guides = NULL;
     }
 
-    while (namedview->gridviews) {
-        gtk_object_unref(GTK_OBJECT(namedview->gridviews->data));
-        namedview->gridviews = g_slist_remove(namedview->gridviews, namedview->gridviews->data);
+    // delete grids:
+    while ( namedview->grids ) {
+        Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)namedview->grids->data; // get first entry
+        delete gr;
+        namedview->grids = g_slist_remove_link(namedview->grids, namedview->grids); // deletes first entry
     }
 
     if (((SPObjectClass *) parent_class)->release) {
@@ -218,27 +307,15 @@ static void sp_namedview_release(SPObject *object)
 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)
 {
     SPNamedView *nv = SP_NAMEDVIEW(object);
+    // TODO investigate why we grab this and then never use it
     SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);
 
     switch (key) {
-       case SP_ATTR_VIEWONLY:
+    case SP_ATTR_VIEWONLY:
             nv->editable = (!value);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_SHOWGRID:
-            nv->showgrid = sp_str_to_bool(value);
-            sp_namedview_setup_grid(nv);
-            /* Disable grid snaps if the grid is turned off */
-            nv->snap_manager.grid.setEnabled(nv->showgrid);
-            nv->snap_manager.axonomgrid.setEnabled(nv->showgrid);
-            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-            break;
-       case SP_ATTR_GRIDTYPE:
-            nv->gridtype = sp_str_to_bool(value);
-            sp_namedview_setup_grid(nv);
-            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-            break;
-       case SP_ATTR_SHOWGUIDES:
+    case SP_ATTR_SHOWGUIDES:
             if (!value) { // show guides if not specified, for backwards compatibility
                 nv->showguides = TRUE;
             } else {
@@ -247,113 +324,27 @@ static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *va
             sp_namedview_setup_guides(nv);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_GRIDTOLERANCE:
-            nv->gridtoleranceunit = &px;
-            nv->gridtolerance = DEFAULTTOLERANCE;
-            if (value) {
-                sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
-            }
-            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-            break;
-       case SP_ATTR_GUIDETOLERANCE:
-            nv->guidetoleranceunit = &px;
-            nv->guidetolerance = DEFAULTTOLERANCE;
-            if (value) {
-                sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
-            }
-            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-            break;
-        case SP_ATTR_OBJECTTOLERANCE:
-            nv->objecttoleranceunit = &px;
-            nv->objecttolerance = DEFAULTTOLERANCE;
-            if (value) {
-                sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
-            }
-            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-            break;
-       case SP_ATTR_ABS_TOLERANCE:
-             if (!value)
-                 nv->has_abs_tolerance = true;
-             else
-                 nv->has_abs_tolerance = (sp_str_to_bool (value) == TRUE);
-             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-             break;
-       case SP_ATTR_GRIDORIGINX:
-       case SP_ATTR_GRIDORIGINY:
-       {
-            unsigned const d = (key == SP_ATTR_GRIDORIGINY);
-            nv->gridunit = nv->doc_units;
-            nv->gridorigin[d] = 0.0;
-            if (value) {
-                sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridorigin[d], &nv->gridunit);
-            }
-            nv->gridorigin[d] = sp_units_get_pixels(nv->gridorigin[d], *(nv->gridunit));
-            sp_namedview_setup_grid(nv);
-            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-            break;
-       }
-       case SP_ATTR_GRIDSPACINGX:
-       case SP_ATTR_GRIDSPACINGY:
-       {
-            unsigned const d = (key == SP_ATTR_GRIDSPACINGY);
-            nv->gridunit = nv->doc_units;
-            nv->gridspacing[d] = 1.0;
-            if (value) {
-                sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridspacing[d], &nv->gridunit);
-            }
-            nv->gridspacing[d] = sp_units_get_pixels(nv->gridspacing[d], *(nv->gridunit));
-            sp_namedview_setup_grid(nv);
-            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-            break;
-       }
-       case SP_ATTR_GRIDANGLEX:
-       case SP_ATTR_GRIDANGLEZ:
-       {
-            unsigned const d = (key == SP_ATTR_GRIDANGLEZ); // 0=X  1=Z
-            nv->gridangle[d] = 30; // 30 deg default
-            if (value) {
-                nv->gridangle[d] = g_ascii_strtod(value, NULL);
-            }
-            sp_namedview_setup_grid(nv);
-            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-            break;
-       }
-       case SP_ATTR_GRIDCOLOR:
-            nv->gridcolor = (nv->gridcolor & 0xff) | (DEFAULTGRIDCOLOR & 0xffffff00);
-            if (value) {
-                nv->gridcolor = (nv->gridcolor & 0xff) | sp_svg_read_color(value, nv->gridcolor);
-            }
-            sp_namedview_setup_grid(nv);
-            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-            break;
-       case SP_ATTR_GRIDEMPCOLOR:
-            nv->gridempcolor = (nv->gridempcolor & 0xff) | (DEFAULTGRIDEMPCOLOR & 0xffffff00);
-            if (value) {
-                nv->gridempcolor = (nv->gridempcolor & 0xff) | sp_svg_read_color(value, nv->gridempcolor);
+    case SP_ATTR_SHOWGRIDS:
+            if (!value) { // don't show grids if not specified, for backwards compatibility
+                nv->grids_visible = false;
+            } else {
+                nv->grids_visible = sp_str_to_bool(value);
             }
-            sp_namedview_setup_grid(nv);
-            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-            break;
-       case SP_ATTR_GRIDOPACITY:
-            nv->gridcolor = (nv->gridcolor & 0xffffff00) | (DEFAULTGRIDCOLOR & 0xff);
-            sp_nv_read_opacity(value, &nv->gridcolor);
-            sp_namedview_setup_grid(nv);
-            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-            break;
-       case SP_ATTR_GRIDEMPOPACITY:
-            nv->gridempcolor = (nv->gridempcolor & 0xffffff00) | (DEFAULTGRIDEMPCOLOR & 0xff);
-            sp_nv_read_opacity(value, &nv->gridempcolor);
-            sp_namedview_setup_grid(nv);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_GRIDEMPSPACING:
-            nv->gridempspacing = DEFAULTGRIDEMPSPACING;
-            if (value != NULL)
-                nv->gridempspacing = atoi(value);
-            sp_namedview_setup_grid(nv);
-            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-            break;
-       case SP_ATTR_GUIDECOLOR:
+    case SP_ATTR_GRIDTOLERANCE:
+        nv->snap_manager.snapprefs.setGridTolerance(value ? g_ascii_strtod(value, NULL) : 10000);
+        object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+        break;
+    case SP_ATTR_GUIDETOLERANCE:
+        nv->snap_manager.snapprefs.setGuideTolerance(value ? g_ascii_strtod(value, NULL) : 20);
+        object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+        break;
+    case SP_ATTR_OBJECTTOLERANCE:
+        nv->snap_manager.snapprefs.setObjectTolerance(value ? g_ascii_strtod(value, NULL) : 20);
+        object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+        break;
+    case SP_ATTR_GUIDECOLOR:
             nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
             if (value) {
                 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
@@ -363,7 +354,7 @@ static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *va
             }
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_GUIDEOPACITY:
+    case SP_ATTR_GUIDEOPACITY:
             nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
             sp_nv_read_opacity(value, &nv->guidecolor);
             for (GSList *l = nv->guides; l != NULL; l = l->next) {
@@ -371,7 +362,7 @@ static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *va
             }
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_GUIDEHICOLOR:
+    case SP_ATTR_GUIDEHICOLOR:
             nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
             if (value) {
                 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
@@ -381,7 +372,7 @@ static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *va
             }
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_GUIDEHIOPACITY:
+    case SP_ATTR_GUIDEHIOPACITY:
             nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
             sp_nv_read_opacity(value, &nv->guidehicolor);
             for (GSList *l = nv->guides; l != NULL; l = l->next) {
@@ -389,119 +380,161 @@ static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *va
             }
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_SHOWBORDER:
+    case SP_ATTR_SHOWBORDER:
             nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_BORDERLAYER:
+    case SP_ATTR_BORDERLAYER:
             nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
             if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_BORDERCOLOR:
+    case SP_ATTR_BORDERCOLOR:
             nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
             if (value) {
                 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
             }
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_BORDEROPACITY:
+    case SP_ATTR_BORDEROPACITY:
             nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
             sp_nv_read_opacity(value, &nv->bordercolor);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_PAGECOLOR:
+    case SP_ATTR_PAGECOLOR:
             nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
             if (value) {
                 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
             }
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_PAGEOPACITY:
+    case SP_ATTR_INKSCAPE_PAGEOPACITY:
             nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
             sp_nv_read_opacity(value, &nv->pagecolor);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_PAGESHADOW:
+    case SP_ATTR_INKSCAPE_PAGESHADOW:
             nv->pageshadow = value? atoi(value) : 2; // 2 is the default
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-        case SP_ATTR_SHOWPAGESHADOW:
+    case SP_ATTR_SHOWPAGESHADOW:
             nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_ZOOM:
+    case SP_ATTR_INKSCAPE_ZOOM:
             nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_CX:
+    case SP_ATTR_INKSCAPE_CX:
             nv->cx = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_CY:
+    case SP_ATTR_INKSCAPE_CY:
             nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
+    case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
             nv->window_width = value? atoi(value) : -1; // -1 means not set
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
+    case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
             nv->window_height = value ? atoi(value) : -1; // -1 means not set
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_WINDOW_X:
-            nv->window_x = value ? atoi(value) : -1; // -1 means not set
+    case SP_ATTR_INKSCAPE_WINDOW_X:
+            nv->window_x = value ? atoi(value) : 0;
+            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            break;
+    case SP_ATTR_INKSCAPE_WINDOW_Y:
+            nv->window_y = value ? atoi(value) : 0;
+            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            break;
+    case SP_ATTR_INKSCAPE_WINDOW_MAXIMIZED:
+        nv->window_maximized = value ? atoi(value) : 0;
+        object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+        break;
+    case SP_ATTR_INKSCAPE_SNAP_GLOBAL:
+            nv->snap_manager.snapprefs.setSnapEnabledGlobally(value ? sp_str_to_bool(value) : TRUE);
+            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            break;
+    case SP_ATTR_INKSCAPE_SNAP_BBOX:
+            nv->snap_manager.snapprefs.setSnapModeBBox(value ? sp_str_to_bool(value) : FALSE);
+            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            break;
+    case SP_ATTR_INKSCAPE_SNAP_NODES:
+            nv->snap_manager.snapprefs.setSnapModeNode(value ? sp_str_to_bool(value) : TRUE);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_WINDOW_Y:
-            nv->window_y = value ? atoi(value) : -1; // -1 means not set
+    case SP_ATTR_INKSCAPE_SNAP_CENTER:
+            nv->snap_manager.snapprefs.setIncludeItemCenter(value ? sp_str_to_bool(value) : FALSE);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_GRID_BBOX:
-            nv->snap_manager.grid.setSnapTo(Inkscape::Snapper::BBOX_POINT, value ? sp_str_to_bool(value) : TRUE);
-            nv->snap_manager.axonomgrid.setSnapTo(Inkscape::Snapper::BBOX_POINT, value ? sp_str_to_bool(value) : TRUE);
+    case SP_ATTR_INKSCAPE_SNAP_GRIDS:
+        nv->snap_manager.snapprefs.setSnapToGrids(value ? sp_str_to_bool(value) : TRUE);
+        object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+        break;
+    case SP_ATTR_INKSCAPE_SNAP_TO_GUIDES:
+        nv->snap_manager.snapprefs.setSnapToGuides(value ? sp_str_to_bool(value) : TRUE);
+        object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+        break;
+    case SP_ATTR_INKSCAPE_SNAP_SMOOTH_NODES:
+            nv->snap_manager.snapprefs.setSnapSmoothNodes(value ? sp_str_to_bool(value) : FALSE);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_GRID_POINTS:
-            nv->snap_manager.grid.setSnapTo(Inkscape::Snapper::SNAP_POINT, value ? sp_str_to_bool(value) : FALSE);
-            nv->snap_manager.axonomgrid.setSnapTo(Inkscape::Snapper::SNAP_POINT, value ? sp_str_to_bool(value) : FALSE);
+    case SP_ATTR_INKSCAPE_SNAP_LINE_MIDPOINTS:
+            nv->snap_manager.snapprefs.setSnapLineMidpoints(value ? sp_str_to_bool(value) : FALSE);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_GUIDE_BBOX:
-            nv->snap_manager.guide.setSnapTo(Inkscape::Snapper::BBOX_POINT, value ? sp_str_to_bool(value) : TRUE);
+    case SP_ATTR_INKSCAPE_SNAP_OBJECT_MIDPOINTS:
+        nv->snap_manager.snapprefs.setSnapObjectMidpoints(value ? sp_str_to_bool(value) : FALSE);
+        object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+        break;
+    case SP_ATTR_INKSCAPE_SNAP_BBOX_EDGE_MIDPOINTS:
+        nv->snap_manager.snapprefs.setSnapBBoxEdgeMidpoints(value ? sp_str_to_bool(value) : FALSE);
+        object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+        break;
+    case SP_ATTR_INKSCAPE_SNAP_BBOX_MIDPOINTS:
+        nv->snap_manager.snapprefs.setSnapBBoxMidpoints(value ? sp_str_to_bool(value) : FALSE);
+        object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+        break;
+    case SP_ATTR_INKSCAPE_SNAP_FROM_GUIDE:
+            nv->snap_manager.snapprefs.setSnapModeGuide(value ? sp_str_to_bool(value) : TRUE);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_GUIDE_POINTS:
-            nv->snap_manager.guide.setSnapTo(Inkscape::Snapper::SNAP_POINT, value ? sp_str_to_bool(value) : FALSE);
+    case SP_ATTR_INKSCAPE_SNAP_INTERS_PATHS:
+            nv->snap_manager.snapprefs.setSnapIntersectionCS(value ? sp_str_to_bool(value) : FALSE);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-        case SP_ATTR_INKSCAPE_OBJECT_BBOX:
-            nv->snap_manager.object.setSnapTo(Inkscape::Snapper::BBOX_POINT, (value) ? sp_str_to_bool(value) : FALSE);
+    case SP_ATTR_INKSCAPE_OBJECT_PATHS:
+            nv->snap_manager.snapprefs.setSnapToItemPath(value ? sp_str_to_bool(value) : FALSE);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-        case SP_ATTR_INKSCAPE_OBJECT_POINTS:
-            nv->snap_manager.object.setSnapTo(Inkscape::Snapper::SNAP_POINT, (value) ? sp_str_to_bool(value) : FALSE);
+    case SP_ATTR_INKSCAPE_OBJECT_NODES:
+            nv->snap_manager.snapprefs.setSnapToItemNode(value ? sp_str_to_bool(value) : FALSE);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-        case SP_ATTR_INKSCAPE_OBJECT_PATHS:
-            nv->snap_manager.object.setSnapToPaths(value ? sp_str_to_bool(value) : TRUE);
+    case SP_ATTR_INKSCAPE_BBOX_PATHS:
+            nv->snap_manager.snapprefs.setSnapToBBoxPath(value ? sp_str_to_bool(value) : FALSE);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-        case SP_ATTR_INKSCAPE_OBJECT_NODES:
-            nv->snap_manager.object.setSnapToNodes(value ? sp_str_to_bool(value) : TRUE);
+    case SP_ATTR_INKSCAPE_BBOX_NODES:
+            nv->snap_manager.snapprefs.setSnapToBBoxNode(value ? sp_str_to_bool(value) : FALSE);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_CURRENT_LAYER:
+    case SP_ATTR_INKSCAPE_SNAP_PAGE:
+            nv->snap_manager.snapprefs.setSnapToPageBorder(value ? sp_str_to_bool(value) : FALSE);
+            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            break;
+    case SP_ATTR_INKSCAPE_CURRENT_LAYER:
             nv->default_layer_id = value ? g_quark_from_string(value) : 0;
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
+    case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
             nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :
                     defaultConnSpacing;
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
+    case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
             /* The default unit if the document doesn't override this: e.g. for files saved as
              * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
              * earlier.
@@ -541,8 +574,32 @@ static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *va
             nv->doc_units = new_unit;
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
-       }
-       default:
+    }
+    case SP_ATTR_UNITS: {
+            SPUnit const *new_unit = NULL;
+
+            if (value) {
+                SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
+                if ( req_unit == NULL ) {
+                    g_warning("Unrecognized unit `%s'", value);
+                    /* fixme: Document errors should be reported in the status bar or
+                     * the like (e.g. as per
+                     * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
+                     * should be only for programmer errors. */
+                } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
+                            req_unit->base == SP_UNIT_DEVICE     ) {
+                    new_unit = req_unit;
+                } else {
+                    g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
+                              value);
+                    /* fixme: Don't use g_log (see above). */
+                }
+            }
+            nv->units = new_unit;
+            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            break;
+    }
+    default:
             if (((SPObjectClass *) (parent_class))->set) {
                 ((SPObjectClass *) (parent_class))->set(object, key, value);
             }
@@ -550,6 +607,47 @@ static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *va
     }
 }
 
+/**
+* add a grid item from SVG-repr. Check if this namedview already has a gridobject for this one! If desktop=null, add grid-canvasitem to all desktops of this namedview,
+* otherwise only add it to the specified desktop.
+*/
+static Inkscape::CanvasGrid*
+sp_namedview_add_grid(SPNamedView *nv, Inkscape::XML::Node *repr, SPDesktop *desktop) {
+    Inkscape::CanvasGrid* grid = NULL;
+    //check if namedview already has an object for this grid
+    for (GSList *l = nv->grids; l != NULL; l = l->next) {
+        Inkscape::CanvasGrid* g = (Inkscape::CanvasGrid*) l->data;
+        if (repr == g->repr) {
+            grid = g;
+            break;
+        }
+    }
+
+    if (!grid) {
+        //create grid object
+        Inkscape::GridType gridtype = Inkscape::CanvasGrid::getGridTypeFromSVGName(repr->attribute("type"));
+        if (!nv->document) {
+            g_warning("sp_namedview_add_grid - how come doc is null here?!");
+            return NULL;
+        }
+        grid = Inkscape::CanvasGrid::NewGrid(nv, repr, nv->document, gridtype);
+        nv->grids = g_slist_append(nv->grids, grid);
+    }
+
+    if (!desktop) {
+        //add canvasitem to all desktops
+        for (GSList *l = nv->views; l != NULL; l = l->next) {
+            SPDesktop *dt = static_cast<SPDesktop*>(l->data);
+            grid->createCanvasItem(dt);
+        }
+    } else {
+        //add canvasitem only for specified desktop
+        grid->createCanvasItem(desktop);
+    }
+
+    return grid;
+}
+
 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
 {
     SPNamedView *nv = (SPNamedView *) object;
@@ -558,29 +656,24 @@ static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *chil
         (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
     }
 
-    const gchar *id = child->attribute("id");
-    SPObject *no = object->document->getObjectById(id);
-    g_assert(SP_IS_OBJECT(no));
-
-    if (SP_IS_GUIDE(no)) {
-        SPGuide *g = (SPGuide *) no;
-        nv->guides = g_slist_prepend(nv->guides, g);
-        g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
-        if (nv->editable) {
-            for (GSList *l = nv->views; l != NULL; l = l->next) {
-                sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
-                if (static_cast<SPDesktop*>(l->data)->guides_active)
-                    sp_guide_sensitize(g,
-                                       sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),
-                                       TRUE);
-                if (nv->showguides) {
-                    for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
-                        sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
-                    }
-                } else {
-                    for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
-                        sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
-                    }
+    if (!strcmp(child->name(), "inkscape:grid")) {
+        sp_namedview_add_grid(nv, child, NULL);
+    } else {
+        SPObject *no = object->document->getObjectByRepr(child);
+        if ( !SP_IS_OBJECT(no) )
+            return;
+
+        if (SP_IS_GUIDE(no)) {
+            SPGuide *g = (SPGuide *) no;
+            nv->guides = g_slist_prepend(nv->guides, g);
+            g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
+            if (nv->editable) {
+                for (GSList *l = nv->views; l != NULL; l = l->next) {
+                    g->SPGuide::showSPGuide(static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
+                    if (static_cast<SPDesktop*>(l->data)->guides_active)
+                        g->sensitize(sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),
+                                           TRUE);
+                    sp_namedview_show_single_guide(SP_GUIDE(g), nv->showguides);
                 }
             }
         }
@@ -591,15 +684,26 @@ static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *chi
 {
     SPNamedView *nv = (SPNamedView *) object;
 
-    GSList **ref = &nv->guides;
-    for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
-        if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
-            *ref = iter->next;
-            iter->next = NULL;
-            g_slist_free_1(iter);
-            break;
+    if (!strcmp(child->name(), "inkscape:grid")) {
+        for ( GSList *iter = nv->grids ; iter ; iter = iter->next ) {
+            Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)iter->data;
+            if ( gr->repr == child ) {
+                delete gr;
+                nv->grids = g_slist_remove_link(nv->grids, iter);
+                break;
+            }
+        }
+    } else {
+        GSList **ref = &nv->guides;
+        for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
+            if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
+                *ref = iter->next;
+                iter->next = NULL;
+                g_slist_free_1(iter);
+                break;
+            }
+            ref = &iter->next;
         }
-        ref = &iter->next;
     }
 
     if (((SPObjectClass *) (parent_class))->remove_child) {
@@ -607,7 +711,7 @@ static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *chi
     }
 }
 
-static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
+static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags)
 {
     if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
          repr != SP_OBJECT_REPR(object) )
@@ -615,7 +719,7 @@ static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::
         if (repr) {
             repr->mergeFrom(SP_OBJECT_REPR(object), "id");
         } else {
-            repr = SP_OBJECT_REPR(object)->duplicate();
+             repr = SP_OBJECT_REPR(object)->duplicate(doc);
         }
     }
 
@@ -625,56 +729,72 @@ static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::
 void SPNamedView::show(SPDesktop *desktop)
 {
     for (GSList *l = guides; l != NULL; l = l->next) {
-        sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
+        SP_GUIDE(l->data)->showSPGuide( desktop->guides, (GCallback) sp_dt_guide_event);
         if (desktop->guides_active) {
-            sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(desktop), TRUE);
-        }
-        if (showguides) {
-            for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
-                sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
-            }
-        } else {
-            for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
-                sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
-            }
+            SP_GUIDE(l->data)->sensitize(sp_desktop_canvas(desktop), TRUE);
         }
+        sp_namedview_show_single_guide(SP_GUIDE(l->data), showguides);
     }
 
     views = g_slist_prepend(views, desktop);
 
-    SPCanvasItem * item = sp_canvas_item_new(sp_desktop_grid(desktop), SP_TYPE_CGRID, NULL);
-    // since we're keeping a copy, we need to bump up the ref count
-    gtk_object_ref(GTK_OBJECT(item));
-    gridviews = g_slist_prepend(gridviews, item);
+    // generate grids specified in SVG:
+    Inkscape::XML::Node *repr = SP_OBJECT_REPR(this);
+    if (repr) {
+        for (Inkscape::XML::Node * child = repr->firstChild() ; child != NULL; child = child->next() ) {
+            if (!strcmp(child->name(), "inkscape:grid")) {
+                sp_namedview_add_grid(this, child, desktop);
+            }
+        }
+    }
 
-    item = sp_canvas_item_new(sp_desktop_grid(desktop), SP_TYPE_CAXONOMGRID, NULL);
-    // since we're keeping a copy, we need to bump up the ref count
-    gtk_object_ref(GTK_OBJECT(item));
-    gridviews = g_slist_prepend(gridviews, item);
+    desktop->showGrids(grids_visible, false);
+}
+
+#define MIN_ONSCREEN_DISTANCE 50
 
-    sp_namedview_setup_grid(this);
+void SPNamedView::writeNewGrid(SPDocument *document,int gridtype)
+{
+    g_assert(this->getRepr() != NULL);
+    Inkscape::CanvasGrid::writeNewGridToRepr(this->getRepr(),document,static_cast<Inkscape::GridType>(gridtype));
 }
 
 /*
- * Restores window geometry from the document settings
+ * Restores window geometry from the document settings or defaults in prefs
  */
 void sp_namedview_window_from_document(SPDesktop *desktop)
 {
     SPNamedView *nv = desktop->namedview;
-    gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
-
-    // restore window size and position
-    if (save_geometry) {
-        if (nv->window_width != -1 && nv->window_height != -1)
-            desktop->setWindowSize(nv->window_width, nv->window_height);
-        if (nv->window_x != -1 && nv->window_y != -1)
-            desktop->setWindowPosition(NR::Point(nv->window_x, nv->window_y));
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    bool geometry_from_file = prefs->getBool("/options/savewindowgeometry/value");
+
+    // restore window size and position stored with the document
+    if (geometry_from_file) {
+        if (nv->window_maximized) {
+            Gtk::Window *win = desktop->getToplevel();
+            if (win){
+                win->maximize();
+            }
+        } else {
+            gint w = MIN(gdk_screen_width(), nv->window_width);
+            gint h = MIN(gdk_screen_height(), nv->window_height);
+            // prevent the window from moving off the screen to the right or to the bottom
+            gint x = MIN(gdk_screen_width() - MIN_ONSCREEN_DISTANCE, nv->window_x);
+            gint y = MIN(gdk_screen_height() - MIN_ONSCREEN_DISTANCE, nv->window_y);
+            // prevent the window from moving off the screen to the left or to the top
+            x = MAX(MIN_ONSCREEN_DISTANCE - nv->window_width, x);
+            y = MAX(MIN_ONSCREEN_DISTANCE - nv->window_height, y);
+            if (w>0 && h>0) {
+                desktop->setWindowSize(w, h);
+                desktop->setWindowPosition(Geom::Point(x, y));
+            }
+        }
     }
 
     // restore zoom and view
-    if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !isNaN(nv->zoom)
-        && nv->cx != HUGE_VAL && !isNaN(nv->cx)
-        && nv->cy != HUGE_VAL && !isNaN(nv->cy)) {
+    if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !IS_NAN(nv->zoom)
+        && nv->cx != HUGE_VAL && !IS_NAN(nv->cx)
+        && nv->cy != HUGE_VAL && !IS_NAN(nv->cy)) {
         desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
     } else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page
         desktop->zoom_page();
@@ -685,9 +805,24 @@ void sp_namedview_window_from_document(SPDesktop *desktop)
         g_list_free(desktop->zooms_past);
         desktop->zooms_past = NULL;
     }
+}
+
+bool SPNamedView::getSnapGlobal() const
+{
+    return this->snap_manager.snapprefs.getSnapEnabledGlobally();
+}
 
+void SPNamedView::setSnapGlobal(bool v)
+{
+    g_assert(this->getRepr() != NULL);
+    sp_repr_set_boolean(this->getRepr(), "inkscape:snap-global", v);
+}
+
+void sp_namedview_update_layers_from_document (SPDesktop *desktop)
+{
     SPObject *layer = NULL;
     SPDocument *document = desktop->doc();
+    SPNamedView *nv = desktop->namedview;
     if ( nv->default_layer_id != 0 ) {
         layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
     }
@@ -697,8 +832,7 @@ void sp_namedview_window_from_document(SPDesktop *desktop)
     }
     // if that didn't work out, look for the topmost layer
     if (!layer) {
-        SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
-        for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
+        for ( SPObject *iter = document->getRoot()->firstChild(); iter ; iter = iter->getNext() ) {
             if (desktop->isLayer(iter)) {
                 layer = iter;
             }
@@ -714,31 +848,33 @@ void sp_namedview_window_from_document(SPDesktop *desktop)
 
 void sp_namedview_document_from_window(SPDesktop *desktop)
 {
-    gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    bool save_geometry_in_file = prefs->getBool("/options/savewindowgeometry/value", 0);
     Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
-    NR::Rect const r = desktop->get_display_area();
+    Geom::Rect const r = desktop->get_display_area();
 
     // saving window geometry is not undoable
-    bool saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
-    sp_document_set_undo_sensitive(sp_desktop_document(desktop), false);
+    bool saved = DocumentUndo::getUndoSensitive(sp_desktop_document(desktop));
+    DocumentUndo::setUndoSensitive(sp_desktop_document(desktop), false);
 
     sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
-    sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[NR::X]);
-    sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[NR::Y]);
+    sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[Geom::X]);
+    sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[Geom::Y]);
 
-    if (save_geometry) {
+    if (save_geometry_in_file) {
         gint w, h, x, y;
         desktop->getWindowGeometry(x, y, w, h);
         sp_repr_set_int(view, "inkscape:window-width", w);
         sp_repr_set_int(view, "inkscape:window-height", h);
         sp_repr_set_int(view, "inkscape:window-x", x);
         sp_repr_set_int(view, "inkscape:window-y", y);
+        sp_repr_set_int(view, "inkscape:window-maximized", desktop->is_maximized());
     }
 
-    view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
+    view->setAttribute("inkscape:current-layer", desktop->currentLayer()->getId());
 
     // restore undoability
-    sp_document_set_undo_sensitive(sp_desktop_document(desktop), saved);
+    DocumentUndo::setUndoSensitive(sp_desktop_document(desktop), saved);
 }
 
 void SPNamedView::hide(SPDesktop const *desktop)
@@ -747,19 +883,10 @@ void SPNamedView::hide(SPDesktop const *desktop)
     g_assert(g_slist_find(views, desktop));
 
     for (GSList *l = guides; l != NULL; l = l->next) {
-        sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));
+        SP_GUIDE(l->data)->hideSPGuide(sp_desktop_canvas(desktop));
     }
 
     views = g_slist_remove(views, desktop);
-
-    GSList *l;
-    for (l = gridviews; l != NULL; l = l->next) {
-        if (SP_CANVAS_ITEM(l->data)->canvas == sp_desktop_canvas(desktop)) {
-            sp_canvas_item_hide(SP_CANVAS_ITEM(l->data));
-            gtk_object_unref(GTK_OBJECT(l->data));
-            gridviews = g_slist_remove(gridviews, l->data);
-        }
-    }
 }
 
 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
@@ -770,21 +897,26 @@ void SPNamedView::activateGuides(gpointer desktop, gboolean active)
     SPDesktop *dt = static_cast<SPDesktop*>(desktop);
 
     for (GSList *l = guides; l != NULL; l = l->next) {
-        sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);
+        SP_GUIDE(l->data)->sensitize( sp_desktop_canvas(dt), active);
     }
 }
 
 static void sp_namedview_setup_guides(SPNamedView *nv)
 {
     for (GSList *l = nv->guides; l != NULL; l = l->next) {
-        if (nv->showguides) {
-            for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
-                sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
-            }
+        sp_namedview_show_single_guide(SP_GUIDE(l->data), nv->showguides);
+    }
+}
+
+static void sp_namedview_show_single_guide(SPGuide* guide, bool show)
+{
+    for (GSList *v = guide->views; v != NULL; v = v->next) {
+        if (show) {
+            sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
+            sp_canvas_item_show(SP_CANVAS_ITEM(SP_GUIDELINE(v->data)->origin));
         } else {
-            for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
-                sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
-            }
+            sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
+            sp_canvas_item_hide(SP_CANVAS_ITEM(SP_GUIDELINE(v->data)->origin));
         }
     }
 }
@@ -799,86 +931,38 @@ void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
         v = !v;
     }
 
-    bool saved = sp_document_get_undo_sensitive(doc);
-    sp_document_set_undo_sensitive(doc, false);
-
+    bool saved = DocumentUndo::getUndoSensitive(doc);
+    DocumentUndo::setUndoSensitive(doc, false);
     sp_repr_set_boolean(repr, "showguides", v);
+    DocumentUndo::setUndoSensitive(doc, saved);
 
-    doc->rroot->setAttribute("sodipodi:modified", "true");
-    sp_document_set_undo_sensitive(doc, saved);
+    doc->setModifiedSinceSave();
 }
 
-void sp_namedview_toggle_grid(SPDocument *doc, Inkscape::XML::Node *repr)
+void sp_namedview_show_grids(SPNamedView * namedview, bool show, bool dirty_document)
 {
-    unsigned int v;
-    sp_repr_get_boolean(repr, "showgrid", &v);
-    v = !v;
+    namedview->grids_visible = show;
 
-    bool saved = sp_document_get_undo_sensitive(doc);
-    sp_document_set_undo_sensitive(doc, false);
+    SPDocument *doc = SP_OBJECT_DOCUMENT (namedview);
+    Inkscape::XML::Node *repr = SP_OBJECT_REPR(namedview);
 
-    sp_repr_set_boolean(repr, "showgrid", v);
+    bool saved = DocumentUndo::getUndoSensitive(doc);
+    DocumentUndo::setUndoSensitive(doc, false);
+    sp_repr_set_boolean(repr, "showgrid", namedview->grids_visible);
+    DocumentUndo::setUndoSensitive(doc, saved);
 
-    doc->rroot->setAttribute("sodipodi:modified", "true");
-    sp_document_set_undo_sensitive(doc, saved);
-}
-
-void sp_namedview_set_gridtype(bool type, SPDocument *doc, Inkscape::XML::Node *repr)
-{
-    bool saved = sp_document_get_undo_sensitive(doc);
-    sp_document_set_undo_sensitive(doc, false);
-
-    sp_repr_set_boolean(repr, "showgrid", type);
-
-    doc->rroot->setAttribute("sodipodi:modified", "true");
-    sp_document_set_undo_sensitive(doc, saved);
-}
-
-static void sp_namedview_setup_grid(SPNamedView *nv)
-{
-    for (GSList *l = nv->gridviews; l != NULL; l = l->next) {
-        sp_namedview_setup_grid_item(nv, SP_CANVAS_ITEM(l->data));
+    /* we don't want the document to get dirty on startup; that's when
+       we call this function with dirty_document = false */
+    if (dirty_document) {
+        doc->setModifiedSinceSave();
     }
 }
 
-static void sp_namedview_setup_grid_item(SPNamedView *nv, SPCanvasItem *item)
-{
-    bool btype = SP_IS_CAXONOMGRID(GTK_OBJECT(item));
-
-    if ( nv->showgrid && (nv->gridtype == btype) ) {
-        sp_canvas_item_show(item);
-    } else {
-        sp_canvas_item_hide(item);
-    }
-    
-    sp_canvas_item_set((GtkObject *) item,
-                       "color", nv->gridcolor,
-                       "originx", nv->gridorigin[NR::X],
-                       "originy", nv->gridorigin[NR::Y],
-                       "spacingy", nv->gridspacing[NR::Y],
-                       "empcolor", nv->gridempcolor,
-                       "empspacing", nv->gridempspacing,
-                       NULL);
-    if (!btype){
-        // CGRID
-        sp_canvas_item_set((GtkObject *) item,
-                           "spacingx", nv->gridspacing[NR::X],
-                           NULL);
-    } else {
-        // CAXONOMGRID
-        sp_canvas_item_set((GtkObject *) item,
-                           "anglex", nv->gridangle[0],
-                           "anglez", nv->gridangle[1],
-                           NULL);
-    }
-}
-
-
 gchar const *SPNamedView::getName() const
 {
     SPException ex;
     SP_EXCEPTION_INIT(&ex);
-    return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
+    return SP_OBJECT(this)->getAttribute("id", &ex);
 }
 
 guint SPNamedView::getViewCount()
@@ -907,58 +991,6 @@ static gboolean sp_str_to_bool(const gchar *str)
     return FALSE;
 }
 
-/* fixme: Collect all these length parsing methods and think common sane API */
-
-static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
-{
-    if (!str) {
-        return FALSE;
-    }
-
-    gchar *u;
-    gdouble v = g_ascii_strtod(str, &u);
-    if (!u) {
-        return FALSE;
-    }
-    while (isspace(*u)) {
-        u += 1;
-    }
-
-    if (!*u) {
-        /* No unit specified - keep default */
-        *val = v;
-        return TRUE;
-    }
-
-    if (base & SP_UNIT_DEVICE) {
-        if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
-            *unit = &sp_unit_get_by_id(SP_UNIT_PX);
-            *val = v;
-            return TRUE;
-        }
-    }
-
-    if (base & SP_UNIT_ABSOLUTE) {
-        if (!strncmp(u, "pt", 2)) {
-            *unit = &sp_unit_get_by_id(SP_UNIT_PT);
-        } else if (!strncmp(u, "mm", 2)) {
-            *unit = &sp_unit_get_by_id(SP_UNIT_MM);
-        } else if (!strncmp(u, "cm", 2)) {
-            *unit = &sp_unit_get_by_id(SP_UNIT_CM);
-        } else if (!strncmp(u, "m", 1)) {
-            *unit = &sp_unit_get_by_id(SP_UNIT_M);
-        } else if (!strncmp(u, "in", 2)) {
-            *unit = &sp_unit_get_by_id(SP_UNIT_IN);
-        } else {
-            return FALSE;
-        }
-        *val = v;
-        return TRUE;
-    }
-
-    return FALSE;
-}
-
 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
 {
     if (!str) {
@@ -966,7 +998,7 @@ static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
     }
 
     gchar *u;
-    gdouble v = strtod(str, &u);
+    gdouble v = g_ascii_strtod(str, &u);
     if (!u) {
         return FALSE;
     }
@@ -988,13 +1020,54 @@ SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
         return (SPNamedView *) nv;
     }
 
-    while (nv && strcmp(nv->id, id)) {
+    while (nv && strcmp(nv->getId(), id)) {
         nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
     }
 
     return (SPNamedView *) nv;
 }
 
+void SPNamedView::setGuides(bool v)
+{
+    g_assert(this->getRepr() != NULL);
+    sp_repr_set_boolean(this->getRepr(), "showguides", v);
+    sp_repr_set_boolean(this->getRepr(), "inkscape:guide-bbox", v);
+}
+
+/**
+ * Gets page fitting margin information from the namedview node in the XML.
+ * \param nv_repr reference to this document's namedview
+ * \param key the same key used by the RegisteredScalarUnit in
+ *        ui/widget/page-sizer.cpp
+ * \param margin_units units for the margin
+ * \param return_units units to return the result in
+ * \param width width in px (for percentage margins)
+ * \param height height in px (for percentage margins)
+ * \param use_width true if the this key is left or right margins, false
+ *        otherwise.  Used for percentage margins.
+ * \return the margin size in px, else 0.0 if anything is invalid.
+ */
+double SPNamedView::getMarginLength(gchar const * const key,
+                             SPUnit const * const margin_units,
+                             SPUnit const * const return_units,
+                             double const width,
+                             double const height,
+                             bool const use_width)
+{
+    double value;
+    if(!this->storeAsDouble(key,&value)) {
+        return 0.0;
+    }
+    if (margin_units == &sp_unit_get_by_id (SP_UNIT_PERCENT)) {
+        return (use_width)? width * value : height * value; 
+    }
+    if (!sp_convert_distance (&value, margin_units, return_units)) {
+        return 0.0;
+    }
+    return value;
+}
+
+
 /**
  * Returns namedview's default metric.
  */
@@ -1007,6 +1080,38 @@ SPMetric SPNamedView::getDefaultMetric() const
     }
 }
 
+/**
+ * Returns the first grid it could find that isEnabled(). Returns NULL, if none is enabled
+ */
+Inkscape::CanvasGrid * sp_namedview_get_first_enabled_grid(SPNamedView *namedview)
+{
+    for (GSList const * l = namedview->grids; l != NULL; l = l->next) {
+        Inkscape::CanvasGrid * grid = (Inkscape::CanvasGrid*) l->data;
+        if (grid->isEnabled())
+            return grid;
+    }
+
+    return NULL;
+}
+
+void SPNamedView::translateGuides(Geom::Translate const &tr) {
+    for (GSList *l = guides; l != NULL; l = l->next) {
+        SPGuide &guide = *SP_GUIDE(l->data);
+        Geom::Point point_on_line = guide.point_on_line;
+        point_on_line[0] += tr[0];
+        point_on_line[1] += tr[1];
+        sp_guide_moveto(guide, point_on_line, true);
+    }
+}
+
+void SPNamedView::scrollAllDesktops(double dx, double dy, bool is_scrolling) {
+        for(GSList *l = views; l; l = l->next) {
+            SPDesktop *desktop = static_cast<SPDesktop *>(l->data);
+            desktop->scroll_world_in_svg_coords(dx, dy, is_scrolling);
+        }
+}
+
+
 /*
   Local Variables:
   mode:c++
@@ -1016,4 +1121,4 @@ SPMetric SPNamedView::getDefaultMetric() const
   fill-column:99
   End:
 */
-// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :