Merge lp:~inkscape.dev/inkscape/doc_rotate into lp:~inkscape.dev/inkscape/trunk

[Jabiertxof]

Add rotate canvas feature to Inkscape.
It add the option to rotate in 2 ways:
1. from botton left widget
2. with control+middle button or spacebar

[lp:~inkscape.dev/inkscape/doc_rotate]

15175. By Jabiertxof on 2016-11-06

Fix a bug that allow to enter rotate mode with right click

15176. By Jabiertxof on 2016-11-06

Update to trunk

15177. By Jabiertxof on 2016-11-07

Fix some bugs pointed by vlada

15178. By Jabiertxof on 2016-11-07

Update to trunk

15179. By Jabiertxof on 2016-11-07

Fix some bugs

15180. By Jabiertxof <jtx@jtx> on 2017-01-24

fixing to new trunk

15181. By Jabiertxof <jtx@jtx> on 2017-01-24

Update to trunk

[Martin Owens (doctormo)]

The namespace should be saved somewhere instead of re-specified each time:

DOCROTATE = "{http://www.inkscape.org/namespaces/inkscape}document_rotation"

for example.

Everything else looks remarkably good for such a large diff.

review: Approve

[lp:~inkscape.dev/inkscape/doc_rotate]

15182. By Jabiertxof on 2017-01-24

Put namespace as constant

=== modified file 'share/extensions/hpgl_output.py'
--- share/extensions/hpgl_output.py	2016-05-26 09:28:23 +0000
+++ share/extensions/hpgl_output.py	2017-01-24 17:53:20 +0000
@@ -20,6 +20,7 @@
 
 # standard library
 import sys
+from inkex import NSS
 # local libraries
 import hpgl_encoder
 import inkex
@@ -44,10 +45,18 @@
         self.OptionParser.add_option('--precut',        action='store', type='inkbool', dest='precut',        default='TRUE',  help='Use precut')
         self.OptionParser.add_option('--flat',          action='store', type='float',   dest='flat',          default=1.2,     help='Curve flatness')
         self.OptionParser.add_option('--autoAlign',     action='store', type='inkbool', dest='autoAlign',     default='TRUE',  help='Auto align')
+        self.DOCROTATE = "{http://www.inkscape.org/namespaces/inkscape}document_rotation"
 
     def effect(self):
         self.options.debug = False
         # get hpgl data
+        svg = self.document.getroot()
+        xpathStr = '//sodipodi:namedview'
+        nv = svg.xpath(xpathStr, namespaces=NSS)
+        document_rotate = "0"
+        if nv != []:
+            document_rotate = nv[0].get(self.DOCROTATE)
+            nv[0].set(self.DOCROTATE,"0")
         myHpglEncoder = hpgl_encoder.hpglEncoder(self)
         try:
             self.hpgl, debugObject = myHpglEncoder.getHpgl()
@@ -56,9 +65,13 @@
                 # issue error if no paths found
                 inkex.errormsg(_("No paths where found. Please convert all objects you want to save into paths."))
                 self.hpgl = ''
+                if nv != [] and document_rotate:
+                    nv[0].set("inkscape:document_rotation",document_rotate)
                 return
             else:
                 type, value, traceback = sys.exc_info()
+                if nv != [] and document_rotate:
+                    nv[0].set("inkscape:document_rotation",document_rotate)
                 raise ValueError, ("", type, value), traceback
         # convert raw HPGL to HPGL
         hpglInit = 'IN'
@@ -67,6 +80,8 @@
         if self.options.speed > 0:
             hpglInit += ';VS%d' % self.options.speed
         self.hpgl = hpglInit + self.hpgl + ';SP0;PU0,0;IN; '
+        if nv != [] and document_rotate:
+            nv[0].set("inkscape:document_rotation",document_rotate)
 
     def output(self):
         # print to file
 
=== modified file 'share/extensions/synfig_output.py'
--- share/extensions/synfig_output.py	2011-11-25 19:00:24 +0000
+++ share/extensions/synfig_output.py	2017-01-24 17:53:20 +0000
@@ -1046,6 +1046,11 @@
 ###### Main Class #########################################
 class SynfigExport(SynfigPrep):
     def __init__(self):
+        svg = self.document.getroot()
+        xpathStr = '//http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd}:namedview'
+        res = svg.xpath(xpathStr, namespaces=inkex.NSS)
+        self.document_rotate =  res[0].get("inkscape:document_rotation")
+        res[0].set("inkscape:document_rotation","0")
         SynfigPrep.__init__(self)
 
     def effect(self):
@@ -1073,6 +1078,10 @@
             root_canvas.append(layer)
 
         d.get_root_tree().write(sys.stdout)
+        svg = self.document.getroot()
+        xpathStr = '//http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd}:namedview'
+        res = svg.xpath(xpathStr, namespaces=inkex.NSS)
+        res[0].set("inkscape:document_rotation",self.document_rotate)
 
     def convert_node(self, node, d):
         """Convert an SVG node to a list of Synfig layers"""
 
=== modified file 'src/attributes.cpp'
--- src/attributes.cpp	2016-10-19 11:11:05 +0000
+++ src/attributes.cpp	2017-01-24 17:53:20 +0000
@@ -89,6 +89,7 @@
     {SP_ATTR_INKSCAPE_ZOOM, "inkscape:zoom"},
     {SP_ATTR_INKSCAPE_CX, "inkscape:cx"},
     {SP_ATTR_INKSCAPE_CY, "inkscape:cy"},
+    {SP_ATTR_INKSCAPE_DOCUMENT_ROTATION, "inkscape:document-rotation"},
     {SP_ATTR_INKSCAPE_WINDOW_WIDTH, "inkscape:window-width"},
     {SP_ATTR_INKSCAPE_WINDOW_HEIGHT, "inkscape:window-height"},
     {SP_ATTR_INKSCAPE_WINDOW_X, "inkscape:window-x"},
 
=== modified file 'src/attributes.h'
--- src/attributes.h	2016-10-19 11:11:05 +0000
+++ src/attributes.h	2017-01-24 17:53:20 +0000
@@ -97,6 +97,7 @@
     SP_ATTR_INKSCAPE_ZOOM,
     SP_ATTR_INKSCAPE_CX,
     SP_ATTR_INKSCAPE_CY,
+    SP_ATTR_INKSCAPE_DOCUMENT_ROTATION,
     SP_ATTR_INKSCAPE_WINDOW_WIDTH,
     SP_ATTR_INKSCAPE_WINDOW_HEIGHT,
     SP_ATTR_INKSCAPE_WINDOW_X,
 
=== modified file 'src/desktop-events.cpp'
--- src/desktop-events.cpp	2016-08-08 23:57:01 +0000
+++ src/desktop-events.cpp	2017-01-24 17:53:20 +0000
@@ -155,6 +155,10 @@
                     }
                 }
 
+                SPNamedView *namedview = desktop->namedview;
+                if (namedview && namedview->document_rotation) {
+                    normal *= Geom::Rotate(Geom::rad_from_deg(namedview->document_rotation * -1));
+                }
                 guide = sp_guideline_new(desktop->guides, NULL, event_dt, normal);
                 sp_guideline_set_color(SP_GUIDELINE(guide), desktop->namedview->guidehicolor);
 
 
=== modified file 'src/display/canvas-temporary-item-list.h'
--- src/display/canvas-temporary-item-list.h	2014-10-08 02:22:03 +0000
+++ src/display/canvas-temporary-item-list.h	2017-01-24 17:53:20 +0000
@@ -14,6 +14,7 @@
 
 struct SPCanvasItem;
 class SPDesktop;
+class SPViewBox;
 
 namespace Inkscape {
 namespace Display {
 
=== modified file 'src/display/sp-canvas.cpp'
--- src/display/sp-canvas.cpp	2016-12-25 19:26:50 +0000
+++ src/display/sp-canvas.cpp	2017-01-24 17:53:20 +0000
@@ -29,18 +29,24 @@
 #include "helper/sp-marshal.h"
 #include <2geom/rect.h>
 #include <2geom/affine.h>
-#include "display/cairo-utils.h"
 #include "display/sp-canvas.h"
 #include "display/sp-canvas-group.h"
+#include "display/rendermode.h"
+#include "display/cairo-utils.h"
+#include "display/cairo-templates.h"
+#include "display/drawing-context.h"
+#include "display/drawing-item.h"
+#include "display/nr-filter-colormatrix.h"
+#include "display/canvas-arena.h"
 #include "preferences.h"
 #include "inkscape.h"
 #include "sodipodi-ctrlrect.h"
 #include "cms-system.h"
-#include "display/rendermode.h"
-#include "display/cairo-utils.h"
 #include "debug/gdk-event-latency-tracker.h"
 #include "desktop.h"
 #include "color.h"
+#include <iomanip>
+#include <glibmm/i18n.h>
 
 using Inkscape::Debug::GdkEventLatencyTracker;
 
@@ -1888,6 +1894,19 @@
     return SP_CANVAS_GROUP(_root);
 }
 
+gdouble grayscale_value_matrix[20] = {
+   0.21, 0.72, 0.072, 0, 0,
+   0.21, 0.72, 0.072, 0, 0,
+   0.21, 0.72, 0.072, 0, 0,
+   0   , 0   , 0    , 1, 0
+   };
+cairo_surface_t *surface_rotated;
+cairo_surface_t *surface_origin;
+cairo_surface_t *surface_measure;
+double start_angle = 0;
+bool started = false;
+bool rotated = false;
+
 void SPCanvas::scrollTo(double cx, double cy, unsigned int clear, bool is_scrolling)
 {
     GtkAllocation allocation;
@@ -1910,9 +1929,14 @@
     cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
     // Paint the background
     cairo_translate(cr, -ix, -iy);
+    if (rotated) {
+        cairo_translate(cr, dx, dy);
+        rotated = false;
+    }
     cairo_set_source(cr, _background);
     cairo_paint(cr);
     // Copy the old backing store contents
+    
     cairo_set_source_surface(cr, _backing_store, _x0, _y0);
     cairo_rectangle(cr, _x0, _y0, allocation.width, allocation.height);
     cairo_clip(cr);
@@ -1949,6 +1973,271 @@
     addIdle();
 }
 
+void SPCanvas::startRotateTo(double angle)
+{
+    if (!_backing_store || started) {
+        return; 
+    }
+    start_angle = angle;
+    started = true;
+    GtkAllocation allocation;
+    gtk_widget_get_allocation(&_widget, &allocation);
+    int half_w = allocation.width/2;
+    int half_h = allocation.height/2;
+    int half_min = std::min(half_w,half_h);
+    
+    cairo_surface_t *new_backing_store = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, allocation.width, allocation.height);
+    cairo_t *cr = cairo_create(new_backing_store);
+    cairo_arc(cr, half_w, half_h, half_min-15, 0, 2*M_PI);
+    cairo_fill(cr);
+    cairo_set_operator(cr, CAIRO_OPERATOR_IN);
+    cairo_set_source_surface(cr, _backing_store, 0, 0);
+    cairo_paint(cr);
+    cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
+    cairo_arc(cr, half_w, half_h, half_min-16, 0, 2*M_PI);
+    cairo_set_source_rgba (cr, 1, 1, 1, 0.5);
+    cairo_stroke(cr);
+    cairo_destroy(cr);
+    surface_rotated = new_backing_store;
+    
+    cairo_surface_t *new_backing_store_measure = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, allocation.width, allocation.height);
+    cr = cairo_create(new_backing_store_measure);
+    cairo_arc(cr, half_w, half_h, half_min-15, 0, 2*M_PI);
+    cairo_set_source_rgba (cr, 1, 1, 1, 0.2);
+    cairo_fill(cr);
+    cairo_translate(cr, half_w, half_h);
+    cairo_select_font_face(cr, "sans-serif", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
+    cairo_set_font_size(cr, 10.0);
+    for (gint x = 0; x < 360 ; x++){
+        gint ang = 360 - x ;//+ 90;
+        if (ang > 180) {
+            ang -= 360;
+        }
+        double rot = (-180.0 + x)*(M_PI/180.);
+        double dist = half_min-9;
+        gint inverse = 1;
+        if((x) < 91 || (x) > 270) {
+            inverse = -1;
+        }
+        if(x%10 == 0) {
+            cairo_rotate(cr, -rot);
+            cairo_text_extents_t extents;
+            std::string s = std::to_string(ang) + "º";
+            cairo_text_extents(cr, s.c_str(), &extents);
+            //std::cout << extents.width/2 << "extents.x_bearing\n";
+            cairo_translate(cr, (extents.width/2) * inverse * -1, (dist + ((extents.height/2)* inverse)));
+            if((x) < 91 || (x) > 270) {
+                cairo_rotate(cr, 180*(M_PI/180.0));
+            }
+            cairo_text_path(cr, s.c_str());
+            if((x) < 91 || (x) > 270) {
+                cairo_rotate(cr, -180*(M_PI/180.0));
+            }
+            cairo_translate(cr, (extents.width/2) * inverse , (dist + ((extents.height/2)* inverse)) * -1);
+            cairo_set_source_rgba (cr, 1, 1, 1, 1);
+            cairo_fill(cr);
+            cairo_rotate(cr, rot);
+        }
+        cairo_rotate(cr, x*(M_PI/180.));
+        if(x%5 == 0) {
+            cairo_move_to(cr, 0, half_min-30); 
+            cairo_line_to(cr, 0, half_min-17);
+        } else { 
+            cairo_move_to(cr, 0, half_min-20);
+            cairo_line_to(cr, 0, half_min-15); 
+        }
+        cairo_line_to(cr, 0, half_min-15);
+        cairo_set_source_rgba (cr, 0, 0, 0, 0.4);
+        cairo_set_line_width (cr,1);
+        cairo_stroke(cr);
+        cairo_rotate(cr, -x*(M_PI/180.));
+    }
+    cairo_set_operator(cr, CAIRO_OPERATOR_CLEAR);
+    cairo_translate(cr, -half_w, -half_h);
+    cairo_arc(cr, half_w, half_h, half_min-30, 0, 2*M_PI);
+    cairo_set_source_rgba (cr, 1, 1, 1, 1);
+    cairo_fill(cr);
+    cairo_translate(cr, half_w, half_h);
+    cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
+    cairo_rotate(cr, start_angle*(M_PI/180.));
+    cairo_move_to(cr, 0, 0); 
+    cairo_line_to(cr, 0, (half_min-17) * -1);
+    cairo_set_source_rgba (cr, 1, 1, 1, 0.25);
+    cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND); 
+    cairo_set_line_width (cr,5);
+    cairo_stroke(cr);
+    cairo_move_to(cr, 0, 0); 
+    cairo_line_to(cr, 0, (half_min-17) * -1);
+    cairo_set_source_rgba (cr, 1, 0, 0, 0.9);
+    cairo_set_line_width (cr,1);
+    cairo_stroke(cr);
+    cairo_rotate(cr, -start_angle*(M_PI/180.));
+    cairo_destroy(cr);
+    surface_measure = new_backing_store_measure;
+
+    cairo_surface_t *new_backing_store_grey = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, allocation.width, allocation.height);
+    cr = cairo_create(new_backing_store_grey);
+    cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
+    cairo_set_source_surface(cr, _backing_store, 0, 0);
+    cairo_paint(cr);
+    Inkscape::Filters::FilterColorMatrix::ColorMatrixMatrix _grayscale_colormatrix = std::vector<gdouble> (grayscale_value_matrix, grayscale_value_matrix + 20);
+    cairo_surface_t *out = ink_cairo_surface_create_identical(new_backing_store_grey);
+    ink_cairo_surface_filter(new_backing_store_grey, out, _grayscale_colormatrix);
+    cairo_set_source_surface(cr, out, 0, 0);
+    cairo_surface_destroy(out);
+    cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
+    cairo_paint(cr);
+    cairo_destroy(cr);
+    surface_origin  = new_backing_store_grey;
+}
+
+bool SPCanvas::endRotateTo()
+{
+    if (!_backing_store || !started) {
+        return false; 
+    }
+    started = false;
+    surface_rotated = NULL;
+    surface_origin  = NULL;
+    gtk_widget_queue_draw(GTK_WIDGET(this));
+    dirtyAll();
+    addIdle();
+    rotated = true;
+    return true;
+}
+
+void SPCanvas::clearRotateTo()
+{
+    if (!started) {
+        return; 
+    }
+    gtk_widget_queue_draw(GTK_WIDGET(this));
+    dirtyAll();
+    addIdle();
+}
+
+void SPCanvas::rotateTo(double angle)
+{
+    if (!_backing_store || !started) {
+        return; 
+    }
+    GtkAllocation allocation;
+    gtk_widget_get_allocation(&_widget, &allocation);
+    int half_w = allocation.width/2;
+    int half_h = allocation.height/2;
+    int half_min = std::min(half_w,half_h);
+    cairo_surface_t *new_backing_store = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, allocation.width, allocation.height);
+    cairo_t *cr = cairo_create(new_backing_store);
+    cairo_set_source_surface(cr, surface_origin, 0, 0);
+    cairo_paint(cr);
+    cairo_set_source_rgba (cr, 0, 0, 0, 0.5);
+    cairo_paint(cr);
+    cairo_pattern_t *source_pattern;
+    cairo_matrix_t matrix;
+    source_pattern = cairo_pattern_create_for_surface (surface_rotated);
+    cairo_matrix_init_identity (&matrix);
+    cairo_matrix_translate (&matrix, allocation.width/2.0, allocation.height/2.0);
+    cairo_matrix_rotate (&matrix, Geom::rad_from_deg(angle - start_angle) * -1);
+    cairo_matrix_translate (&matrix, -allocation.width/2.0, -allocation.height/2.0);
+    cairo_pattern_set_matrix (source_pattern, &matrix);
+    cairo_set_source(cr, source_pattern);
+    cairo_paint(cr);
+    cairo_set_source_surface(cr, surface_measure, 0, 0);
+    cairo_paint(cr);
+    cairo_translate(cr, half_w, half_h);
+    cairo_rotate(cr, angle*(M_PI/180.));
+    cairo_move_to(cr, 0, 0); 
+    cairo_line_to(cr, 0, (half_min-17) * -1);
+    cairo_set_source_rgba (cr, 1, 1, 1, 0.25);
+    cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND); 
+    cairo_set_line_width (cr,5);
+    cairo_stroke(cr);
+    cairo_move_to(cr, 0, 0); 
+    cairo_line_to(cr, 0, (half_min-17) * -1);
+    cairo_set_source_rgba (cr, 1, 1, 1, 0.9);
+    cairo_set_line_width (cr,1);
+    cairo_stroke(cr);
+    cairo_move_to(cr, 0, 0); 
+    cairo_line_to(cr, 0, (half_min-17) * -1);
+    cairo_set_source_rgba (cr, 1, 0, 0, 0.9);
+    const double dashed[] = {6.0, 3.0};
+    int len  = sizeof(dashed) / sizeof(dashed[0]);
+    cairo_set_dash(cr, dashed, len, 1);
+    cairo_stroke(cr);
+    cairo_translate(cr, -half_w, -half_h);
+    cairo_set_source_rgba (cr, 1, 1, 1, 0.25);
+    cairo_arc(cr, half_w, half_h, 7, 0, 2*M_PI);
+    cairo_fill(cr);
+    cairo_set_source_rgba (cr, 1, 0, 0, 0.7);
+    cairo_arc(cr, half_w, half_h, 5, 0, 2*M_PI);
+    cairo_fill(cr);
+    cairo_translate(cr, half_w, half_h);
+    cairo_rotate(cr, -angle*(M_PI/180.));
+    cairo_select_font_face(cr, "sans-serif", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
+    cairo_set_font_size(cr, 15.0);
+    cairo_text_extents_t extents;
+    std::ostringstream s;
+    s << _("Original angle ") << std::fixed << std::setprecision(2) << start_angle << "º";
+    cairo_text_extents(cr, s.str().c_str(), &extents);
+    cairo_translate(cr, half_w - extents.width -15 ,-half_h + 25);
+    cairo_set_source_rgba (cr, 1, 1, 1, 1);
+    cairo_text_path(cr, s.str().c_str());
+    cairo_fill(cr);
+    cairo_translate(cr, (half_w - extents.width -15) *-1 ,(-half_h + 25) *-1);
+    s.str("");
+    s << _("New angle ") << std::fixed << std::setprecision(2) << angle << "º";
+    cairo_text_extents(cr, s.str().c_str(), &extents);
+    cairo_translate(cr, half_w - extents.width -15 ,-half_h + 45);
+    cairo_text_path(cr, s.str().c_str());
+    cairo_fill(cr);
+    cairo_translate(cr, (half_w - extents.width -15) *-1 ,(-half_h + 45) *-1);
+    s.str("");
+    s << _("Gap ") << std::fixed << std::setprecision(2) << std::abs(start_angle-angle) << "º";
+    cairo_text_extents(cr, s.str().c_str(), &extents);
+    cairo_translate(cr, half_w - extents.width -15 ,-half_h + 65);
+    cairo_text_path(cr, s.str().c_str());
+    cairo_fill(cr);
+    cairo_translate(cr, (half_w - extents.width -15) *-1 ,(-half_h + 65) *-1);
+    cairo_translate(cr, -half_w + 10 ,-half_h + 25);
+    s.str("");
+    cairo_set_font_size(cr, 12.0);
+    s << _("Normal mode, 1º round step");
+    cairo_text_path(cr, s.str().c_str());
+    cairo_fill(cr);
+    cairo_translate(cr, (-half_w +10) * -1 ,(-half_h + 25) * -1);
+    cairo_translate(cr, -half_w + 10 ,-half_h + 40);
+    s.str("");
+    s << _("+ALT, Fractional degrees");
+    cairo_text_path(cr, s.str().c_str());
+    cairo_fill(cr);
+    cairo_translate(cr, (-half_w + 10) * -1 ,(-half_h + 40) * -1);
+    cairo_translate(cr, -half_w + 10 ,-half_h + 55);
+    s.str("");
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    s << _("+CTRL, ") << 180.0/prefs->getInt("/options/rotationsnapsperpi/value", 12) << _("º round step");
+    cairo_text_path(cr, s.str().c_str());
+    cairo_fill(cr);
+    cairo_translate(cr, (-half_w + 10) * -1 ,(-half_h + 55) * -1);
+    cairo_translate(cr, -half_w + 10 ,-half_h + 70);
+    s.str("");
+    s << _("+SHIFT, Reset");
+    cairo_text_path(cr, s.str().c_str());
+    cairo_fill(cr);
+    cairo_translate(cr, (-half_w + 10) * -1 ,(-half_h + 70) * -1);
+    cairo_translate(cr, -half_w + 10 ,-half_h + 85);
+    s.str("");
+    s << _("+CTRL+SHIFT, 0º");
+    cairo_text_path(cr, s.str().c_str());
+    cairo_fill(cr);
+    //cairo_translate(cr, (-half_w + 10) * -1 ,(-half_h + 60) * -1);
+    cairo_destroy(cr);
+    cairo_surface_destroy(_backing_store);
+    _backing_store = new_backing_store;
+    cairo_pattern_destroy (source_pattern);
+    gtk_widget_queue_draw(GTK_WIDGET(this));
+    addIdle();
+}
+
 void SPCanvas::updateNow()
 {
     if (_need_update) {
 
=== modified file 'src/display/sp-canvas.h'
--- src/display/sp-canvas.h	2016-08-12 04:11:03 +0000
+++ src/display/sp-canvas.h	2017-01-24 17:53:20 +0000
@@ -72,7 +72,10 @@
 struct SPCanvas {
     /// Scrolls canvas to specific position (cx and cy are measured in screen pixels).
     void scrollTo(double cx, double cy, unsigned int clear, bool is_scrolling = false);
-
+    void startRotateTo(double angle);
+    void rotateTo(double angle);
+    bool endRotateTo();
+    void clearRotateTo();
     /// Synchronously updates the canvas if necessary.
     void updateNow();
 
 
=== modified file 'src/document-undo.cpp'
--- src/document-undo.cpp	2017-01-24 00:02:46 +0000
+++ src/document-undo.cpp	2017-01-24 17:53:20 +0000
@@ -240,49 +240,52 @@
 
 gboolean Inkscape::DocumentUndo::undo(SPDocument *doc)
 {
-	using Inkscape::Debug::EventTracker;
-	using Inkscape::Debug::SimpleEvent;
-
-	gboolean ret;
-
-	EventTracker<SimpleEvent<Inkscape::Debug::Event::DOCUMENT> > tracker("undo");
-
-	g_assert (doc != NULL);
-	g_assert (doc->priv != NULL);
-	g_assert (doc->priv->sensitive);
-
-	doc->priv->sensitive = FALSE;
+    using Inkscape::Debug::EventTracker;
+    using Inkscape::Debug::SimpleEvent;
+
+    gboolean ret;
+
+    EventTracker<SimpleEvent<Inkscape::Debug::Event::DOCUMENT> > tracker("undo");
+
+    g_assert (doc != NULL);
+    g_assert (doc->priv != NULL);
+    g_assert (doc->priv->sensitive);
+
+    doc->priv->sensitive = FALSE;
         doc->priv->seeking = true;
 
-	doc->actionkey.clear();
-
-	finish_incomplete_transaction(*doc);
-
-	if (! doc->priv->undo.empty()) {
-		Inkscape::Event *log = doc->priv->undo.back();
-		doc->priv->undo.pop_back();
-		sp_repr_undo_log (log->event);
-		perform_document_update(*doc);
-
-		doc->priv->redo.push_back(log);
+    doc->actionkey.clear();
+
+    finish_incomplete_transaction(*doc);
+
+    if (! doc->priv->undo.empty()) {
+	    Inkscape::Event *log = doc->priv->undo.back();
+	    doc->priv->undo.pop_back();
+	    sp_repr_undo_log (log->event);
+	    perform_document_update(*doc);
+
+	    doc->priv->redo.push_back(log);
 
                 doc->setModifiedSinceSave();
                 doc->priv->undoStackObservers.notifyUndoEvent(log);
 
-		ret = TRUE;
-	} else {
-		ret = FALSE;
-	}
-
-	sp_repr_begin_transaction (doc->rdoc);
-
-	doc->priv->sensitive = TRUE;
+	    ret = TRUE;
+    } else {
+	    ret = FALSE;
+    }
+
+    sp_repr_begin_transaction (doc->rdoc);
+
+    doc->priv->sensitive = TRUE;
         doc->priv->seeking = false;
 
-	if (ret)
-		INKSCAPE.external_change();
+    if (ret) INKSCAPE.external_change();
 
-	return ret;
+    SPObject *updated = doc->getRoot();
+    if (updated) {
+        updated->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
+    }
+    return ret;
 }
 
 gboolean Inkscape::DocumentUndo::redo(SPDocument *doc)
 
=== modified file 'src/document.cpp'
--- src/document.cpp	2016-11-28 22:07:00 +0000
+++ src/document.cpp	2017-01-24 17:53:20 +0000
@@ -386,6 +386,7 @@
         if (!bordercolor.empty()) {
             rnew->setAttribute("bordercolor", bordercolor.data());
         }
+        sp_repr_set_svg_double(rnew, "inkscape:document-rotation", 0.);
         sp_repr_set_svg_double(rnew, "borderopacity",
             prefs->getDouble("/template/base/borderopacity", 1.0));
         sp_repr_set_svg_double(rnew, "objecttolerance",
@@ -407,6 +408,11 @@
         rroot->addChild(rnew, NULL);
         // clean up
         Inkscape::GC::release(rnew);
+    } else {
+        Inkscape::XML::Node *nv_repr = sp_item_group_get_child_by_name(document->root, NULL, "sodipodi:namedview")->getRepr();
+        if (!nv_repr->attribute("inkscape:document-rotation")) {
+            sp_repr_set_svg_double(nv_repr, "inkscape:document-rotation", 0.);
+        }
     }
 
     // Defs
 
=== modified file 'src/extension/internal/cairo-png-out.cpp'
--- src/extension/internal/cairo-png-out.cpp	2014-03-27 01:33:44 +0000
+++ src/extension/internal/cairo-png-out.cpp	2017-01-24 17:53:20 +0000
@@ -53,11 +53,10 @@
 {
     CairoRenderer *renderer;
     CairoRenderContext *ctx;
-
+    doc->getRoot()->c2p = doc->getRoot()->rotation.inverse() * doc->getRoot()->c2p;
     doc->ensureUpToDate();
 
 /* Start */
-
     SPItem *base = doc->getRoot();
     Inkscape::Drawing drawing;
     unsigned dkey = SPItem::display_key_new(1);
@@ -77,6 +76,7 @@
     renderer->destroyContext(ctx);
 
     base->invoke_hide(dkey);
+    doc->getRoot()->c2p *= doc->getRoot()->rotation;
 /* end */
     delete renderer;
 
 
=== modified file 'src/extension/internal/cairo-ps-out.cpp'
--- src/extension/internal/cairo-ps-out.cpp	2016-06-11 17:25:23 +0000
+++ src/extension/internal/cairo-ps-out.cpp	2017-01-24 17:53:20 +0000
@@ -68,6 +68,7 @@
 ps_print_document_to_file(SPDocument *doc, gchar const *filename, unsigned int level, bool texttopath, bool omittext,
                           bool filtertobitmap, int resolution, const gchar * const exportId, bool exportDrawing, bool exportCanvas, float bleedmargin_px, bool eps = false)
 {
+    doc->getRoot()->c2p = doc->getRoot()->rotation.inverse() * doc->getRoot()->c2p;
     doc->ensureUpToDate();
 
     SPItem *base = NULL;
@@ -84,9 +85,10 @@
         pageBoundingBox = !exportDrawing;
     }
 
-    if (!base)
+    if (!base) {
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         return false;
-
+    }
     Inkscape::Drawing drawing;
     unsigned dkey = SPItem::display_key_new(1);
     base->invoke_show(drawing, dkey, SP_ITEM_SHOW_DISPLAY);
@@ -115,6 +117,7 @@
 
     renderer->destroyContext(ctx);
     delete renderer;
+    doc->getRoot()->c2p *= doc->getRoot()->rotation;
 
     return ret;
 }
 
=== modified file 'src/extension/internal/cairo-renderer-pdf-out.cpp'
--- src/extension/internal/cairo-renderer-pdf-out.cpp	2016-06-11 17:25:23 +0000
+++ src/extension/internal/cairo-renderer-pdf-out.cpp	2017-01-24 17:53:20 +0000
@@ -61,6 +61,7 @@
                             bool texttopath, bool omittext, bool filtertobitmap, int resolution,
                             const gchar * const exportId, bool exportDrawing, bool exportCanvas, float bleedmargin_px)
 {
+    doc->getRoot()->c2p = doc->getRoot()->rotation.inverse() * doc->getRoot()->c2p;
     doc->ensureUpToDate();
 
 /* Start */
@@ -80,6 +81,7 @@
     }
 
     if (!base) {
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         return false;
     }
     
@@ -112,7 +114,7 @@
 
     renderer->destroyContext(ctx);
     delete renderer;
-
+    doc->getRoot()->c2p *= doc->getRoot()->rotation;
     return ret;
 }
 
 
=== modified file 'src/extension/internal/emf-inout.cpp'
--- src/extension/internal/emf-inout.cpp	2016-06-11 17:25:23 +0000
+++ src/extension/internal/emf-inout.cpp	2017-01-24 17:53:20 +0000
@@ -94,7 +94,7 @@
     const gchar *oldconst;
     gchar *oldoutput;
     unsigned int ret;
-
+    doc->getRoot()->c2p = doc->getRoot()->rotation.inverse() * doc->getRoot()->c2p;
     doc->ensureUpToDate();
 
     mod = Inkscape::Extension::get_print(PRINT_EMF);
@@ -114,6 +114,7 @@
     /* Print document */
     ret = mod->begin(doc);
     if (ret) {
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         g_free(oldoutput);
         throw Inkscape::Extension::Output::save_failed();
     }
@@ -127,7 +128,7 @@
 
     mod->set_param_string("destination", oldoutput);
     g_free(oldoutput);
-
+    doc->getRoot()->c2p *= doc->getRoot()->rotation;
     return;
 }
 
 
=== modified file 'src/extension/internal/javafx-out.cpp'
--- src/extension/internal/javafx-out.cpp	2016-07-14 11:17:21 +0000
+++ src/extension/internal/javafx-out.cpp	2017-01-24 17:53:20 +0000
@@ -843,7 +843,8 @@
 bool JavaFXOutput::saveDocument(SPDocument *doc, gchar const *filename_utf8)
 {
     reset();
-
+    doc->getRoot()->c2p = doc->getRoot()->rotation.inverse() * doc->getRoot()->c2p;
+    doc->ensureUpToDate();
 
     name = Glib::path_get_basename(filename_utf8);
     int pos = name.find('.');
@@ -856,12 +857,14 @@
     //# Lets do the curves first, to get the stats
 
     if (!doTree(doc)) {
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         return false;
     }
     String curveBuf = outbuf;
     outbuf.clear();
 
     if (!doHeader()) {
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         return false;
     }
 
@@ -875,6 +878,7 @@
     doBody(doc, doc->getRoot());
 
     if (!doTail()) {
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         return false;
     }
 
@@ -884,6 +888,7 @@
     FILE *f = Inkscape::IO::fopen_utf8name(filename_utf8, "w");
     if (!f)
         {
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         err("Could open JavaFX file '%s' for writing", filename_utf8);
         return false;
         }
@@ -894,7 +899,7 @@
         }
 
     fclose(f);
-
+    doc->getRoot()->c2p *= doc->getRoot()->rotation;
     return true;
 }
 
 
=== modified file 'src/extension/internal/latex-pstricks-out.cpp'
--- src/extension/internal/latex-pstricks-out.cpp	2012-04-18 07:02:24 +0000
+++ src/extension/internal/latex-pstricks-out.cpp	2017-01-24 17:53:20 +0000
@@ -49,6 +49,7 @@
 void LatexOutput::save(Inkscape::Extension::Output * /*mod2*/, SPDocument *doc, gchar const *filename)
 {
     SPPrintContext context;
+    doc->getRoot()->c2p = doc->getRoot()->rotation.inverse() * doc->getRoot()->c2p;
     doc->ensureUpToDate();
 
     Inkscape::Extension::Print *mod = Inkscape::Extension::get_print(SP_MODULE_KEY_PRINT_LATEX);
@@ -76,6 +77,7 @@
 
     mod->set_param_string("destination", oldoutput);
     g_free(oldoutput);
+    doc->getRoot()->c2p *= doc->getRoot()->rotation;
 }
 
 #include "clear-n_.h"
 
=== modified file 'src/extension/internal/odf.cpp'
--- src/extension/internal/odf.cpp	2016-08-17 07:39:43 +0000
+++ src/extension/internal/odf.cpp	2017-01-24 17:53:20 +0000
@@ -72,6 +72,7 @@
 #include "sp-path.h"
 #include "sp-text.h"
 #include "sp-flowtext.h"
+#include "sp-root.h"
 #include "svg/svg.h"
 #include "text-editing.h"
 #include "util/units.h"
@@ -2095,7 +2096,8 @@
 void OdfOutput::save(Inkscape::Extension::Output */*mod*/, SPDocument *doc, gchar const *filename)
 {
     reset();
-
+    doc->getRoot()->c2p = doc->getRoot()->rotation.inverse() * doc->getRoot()->c2p;
+    doc->ensureUpToDate();
     documentUri = Inkscape::URI(filename);
 
     ZipFile zf;
@@ -2104,25 +2106,30 @@
     if (!writeManifest(zf))
         {
         g_warning("Failed to write manifest");
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         return;
         }
 
     if (!writeContent(zf, doc->rroot))
         {
         g_warning("Failed to write content");
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         return;
         }
 
     if (!writeMeta(zf))
         {
         g_warning("Failed to write metafile");
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         return;
         }
 
     if (!zf.writeFile(filename))
         {
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         return;
         }
+    doc->getRoot()->c2p *= doc->getRoot()->rotation;
 }
 
 
 
=== modified file 'src/extension/internal/pov-out.cpp'
--- src/extension/internal/pov-out.cpp	2016-07-14 11:17:21 +0000
+++ src/extension/internal/pov-out.cpp	2017-01-24 17:53:20 +0000
@@ -616,11 +616,13 @@
 void PovOutput::saveDocument(SPDocument *doc, gchar const *filename_utf8)
 {
     reset();
-
+    doc->getRoot()->c2p = doc->getRoot()->rotation.inverse() * doc->getRoot()->c2p;
+    doc->ensureUpToDate();
     //###### SAVE IN POV FORMAT TO BUFFER
     //# Lets do the curves first, to get the stats
     if (!doTree(doc))
         {
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         err("Could not output curves for %s", filename_utf8);
         return;
         }
@@ -630,6 +632,7 @@
 
     if (!doHeader())
         {
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         err("Could not write header for %s", filename_utf8);
         return;
         }
@@ -638,6 +641,7 @@
 
     if (!doTail())
         {
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         err("Could not write footer for %s", filename_utf8);
         return;
         }
@@ -648,9 +652,11 @@
     //###### WRITE TO FILE
     Inkscape::IO::dump_fopen_call(filename_utf8, "L");
     FILE *f = Inkscape::IO::fopen_utf8name(filename_utf8, "w");
-    if (!f)
+    if (!f){
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         return;
-
+    }
+    
     for (String::iterator iter = outbuf.begin() ; iter!=outbuf.end(); ++iter)
         {
         int ch = *iter;
@@ -658,6 +664,7 @@
         }
 
     fclose(f);
+    doc->getRoot()->c2p *= doc->getRoot()->rotation;
 }
 
 
 
=== modified file 'src/extension/internal/wmf-inout.cpp'
--- src/extension/internal/wmf-inout.cpp	2016-06-11 17:25:23 +0000
+++ src/extension/internal/wmf-inout.cpp	2017-01-24 17:53:20 +0000
@@ -95,7 +95,7 @@
     SPPrintContext context;
     const gchar *oldconst;
     gchar *oldoutput;
-
+    doc->getRoot()->c2p = doc->getRoot()->rotation.inverse() * doc->getRoot()->c2p;
     doc->ensureUpToDate();
 
     mod = Inkscape::Extension::get_print(PRINT_WMF);
@@ -115,6 +115,7 @@
     /* Print document */
     if (mod->begin(doc)) {
         g_free(oldoutput);
+        doc->getRoot()->c2p *= doc->getRoot()->rotation;
         throw Inkscape::Extension::Output::save_failed();
     }
     mod->base->invoke_print(&context);
@@ -127,7 +128,7 @@
 
     mod->set_param_string("destination", oldoutput);
     g_free(oldoutput);
-
+    doc->getRoot()->c2p *= doc->getRoot()->rotation;
     return;
 }
 
@@ -135,6 +136,8 @@
 void
 Wmf::save(Inkscape::Extension::Output *mod, SPDocument *doc, gchar const *filename)
 {
+    doc->getRoot()->c2p = doc->getRoot()->rotation.inverse() * doc->getRoot()->c2p;
+    doc->ensureUpToDate();
     Inkscape::Extension::Extension * ext;
 
     ext = Inkscape::Extension::db.get(PRINT_WMF);
 
=== modified file 'src/file.cpp'
--- src/file.cpp	2017-01-24 00:39:06 +0000
+++ src/file.cpp	2017-01-24 17:53:20 +0000
@@ -293,10 +293,12 @@
                   bool replace_empty)
 {
     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
+    Inkscape::Display::TemporaryItem *page_border_rotated = NULL;
     if (desktop) {
         desktop->setWaitingCursor();
+        page_border_rotated = sp_document_namedview(desktop->getDocument(), NULL)->page_border_rotated;
     }
-
+    
     SPDocument *doc = NULL;
     bool cancelled = false;
     try {
@@ -315,7 +317,6 @@
     }
 
     if (doc) {
-
         SPDocument *existing = desktop ? desktop->getDocument() : NULL;
 
         if (existing && existing->virgin && replace_empty) {
@@ -323,6 +324,7 @@
             doc->ensureUpToDate(); // TODO this will trigger broken link warnings, etc.
             desktop->change_document(doc);
             doc->emitResizedSignal(doc->getWidth().value("px"), doc->getHeight().value("px"));
+            desktop->remove_temporary_canvasitem(page_border_rotated);
         } else {
             // create a whole new desktop and window
             SPViewWidget *dtw = sp_desktop_widget_new(sp_document_namedview(doc, NULL)); // TODO this will trigger broken link warnings, etc.
 
=== modified file 'src/print.cpp'
--- src/print.cpp	2012-02-27 23:49:20 +0000
+++ src/print.cpp	2017-01-24 17:53:20 +0000
@@ -79,6 +79,7 @@
 void
 sp_print_document(Gtk::Window& parentWindow, SPDocument *doc)
 {
+    doc->getRoot()->c2p = doc->getRoot()->rotation.inverse() * doc->getRoot()->c2p;
     doc->ensureUpToDate();
 
     // Build arena
@@ -88,6 +89,7 @@
     Inkscape::UI::Dialog::Print printop(doc,base);
     Gtk::PrintOperationResult res = printop.run(Gtk::PRINT_OPERATION_ACTION_PRINT_DIALOG, parentWindow);
     (void)res; // TODO handle this
+    doc->getRoot()->c2p *= doc->getRoot()->rotation;
 }
 
 void sp_print_document_to_file(SPDocument *doc, gchar const *filename)
 
=== modified file 'src/sp-namedview.cpp'
--- src/sp-namedview.cpp	2016-08-03 14:56:48 +0000
+++ src/sp-namedview.cpp	2017-01-24 17:53:20 +0000
@@ -19,7 +19,12 @@
 #include "event-log.h"
 #include <2geom/transforms.h>
 
+#include "display/sp-canvas-group.h"
+#include "display/canvas-bpath.h"
+#include "display/canvas-temporary-item.h"
+#include "display/canvas-temporary-item-list.h"
 #include "display/canvas-grid.h"
+#include "display/curve.h"
 #include "util/units.h"
 #include "svg/svg-color.h"
 #include "xml/repr.h"
@@ -29,12 +34,15 @@
 #include "desktop-events.h"
 
 #include "sp-guide.h"
+#include "sp-root.h"
 #include "sp-item-group.h"
 #include "sp-namedview.h"
 #include "preferences.h"
 #include "desktop.h"
+#include "selection.h"
+#include "object-set.h"
+#include "inkscape.h"
 #include "conn-avoid-ref.h" // for defaultConnSpacing.
-#include "sp-root.h"
 #include <gtkmm/window.h>
 
 using Inkscape::DocumentUndo;
@@ -72,6 +80,7 @@
     this->pagecolor = 0;
     this->cx = 0;
     this->pageshadow = 0;
+    this->document_rotation = 0;
     this->window_width = 0;
     this->window_height = 0;
     this->window_maximized = 0;
@@ -92,9 +101,13 @@
     this->default_layer_id = 0;
 
     this->connector_spacing = defaultConnSpacing;
+    this->page_border_rotated = NULL;
 }
 
 SPNamedView::~SPNamedView() {
+    if(!this->getViewList().empty()) { // >0 Desktops
+        this->getViewList()[0]->remove_temporary_canvasitem(this->page_border_rotated);
+    }
 }
 
 static void sp_namedview_generate_old_grid(SPNamedView * /*nv*/, SPDocument *document, Inkscape::XML::Node *repr) {
@@ -212,6 +225,7 @@
     this->readAttr( "inkscape:zoom" );
     this->readAttr( "inkscape:cx" );
     this->readAttr( "inkscape:cy" );
+    this->readAttr( "inkscape:document-rotation" );
     this->readAttr( "inkscape:window-width" );
     this->readAttr( "inkscape:window-height" );
     this->readAttr( "inkscape:window-x" );
@@ -409,6 +423,11 @@
             this->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
             this->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
+    case SP_ATTR_INKSCAPE_DOCUMENT_ROTATION:
+            this->document_rotation = value ? g_ascii_strtod(value, NULL) : 0; 
+            sp_namedview_set_document_rotation(this);
+            this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            break;
     case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
             this->window_width = value? atoi(value) : -1; // -1 means not set
             this->requestModified(SP_OBJECT_MODIFIED_FLAG);
@@ -939,6 +958,81 @@
     }
 }
 
+void sp_namedview_doc_rotate_guides(SPNamedView *nv)
+{
+    bool saved = DocumentUndo::getUndoSensitive(nv->document);
+    DocumentUndo::setUndoSensitive(nv->document, false);
+    SPRoot * root = nv->document->getRoot();
+    Geom::Point page_center = root->viewBox.midpoint() * root->vbt;
+    Geom::Affine rot = Geom::identity();
+    rot *= Geom::Translate(page_center).inverse(); 
+    rot *= Geom::Rotate(Geom::rad_from_deg((nv->document_rotation - root->get_rotation()) * -1));
+    rot *=  Geom::Translate(page_center);
+    for(std::vector<SPGuide *>::iterator it=nv->guides.begin();it!=nv->guides.end();++it ) {
+        Geom::Point const on_line = (*it)->getPoint() * rot ;
+        (*it)->moveto(on_line, true);
+        Geom::Affine rot_normal_affine = Geom::Rotate(Geom::rad_from_deg((nv->document_rotation - root->get_rotation()) * -1));
+        Geom::Point const rot_normal = (*it)->getNormal() * rot_normal_affine;
+        (*it)->set_normal(rot_normal, true);
+    }
+    DocumentUndo::setUndoSensitive(nv->document, saved);
+    nv->document->setModifiedSinceSave();
+}
+
+void sp_namedview_set_document_rotation(SPNamedView *nv)
+{
+    if ( nv->document->getRoot()->get_rotation() == nv->document_rotation) return;
+    if(!nv->getViewList().empty()) { // >0 Desktops
+        SPDesktop *desktop = nv->getViewList()[0]; 
+        desktop->remove_temporary_canvasitem(nv->page_border_rotated);
+        SPRoot * root = nv->document->getRoot();
+        SPCurve *c = new SPCurve();
+        c->moveto(root->viewBox.min());
+        c->lineto(Geom::Point(root->viewBox.max()[Geom::X],root->viewBox.min()[Geom::Y]));
+        c->lineto(Geom::Point(root->viewBox.max()[Geom::X],root->viewBox.max()[Geom::Y]));
+        c->lineto(Geom::Point(root->viewBox.min()[Geom::X],root->viewBox.max()[Geom::Y]));
+        c->closepath();
+        Geom::Point page_center = root->viewBox.midpoint();
+        Geom::PathVector const box = c->get_pathvector();
+        Geom::Affine rot = Geom::identity();
+        rot *= Geom::Translate(page_center).inverse(); 
+        rot *= Geom::Rotate(Geom::rad_from_deg(nv->document_rotation * -1));
+        rot *=  Geom::Translate(page_center);
+        if (nv->document_rotation) {
+            SPCanvasItem *canvas_border = sp_canvas_bpath_new(desktop->getTempGroup(), c, true);
+            sp_canvas_bpath_set_stroke(SP_CANVAS_BPATH(canvas_border), 0xFF00009A, 1.0, SP_STROKE_LINEJOIN_MITER, SP_STROKE_LINECAP_BUTT);
+            sp_canvas_bpath_set_fill(SP_CANVAS_BPATH(canvas_border), 0, SP_WIND_RULE_NONZERO);
+            sp_canvas_item_affine_absolute(canvas_border, rot * root->vbt);
+            nv->page_border_rotated = desktop->add_temporary_canvasitem(canvas_border, 0); 
+        }
+        sp_namedview_doc_rotate_guides(nv);
+        nv->document->getRoot()->set_rotation(nv->document_rotation);
+        c->unref();
+    }
+    if (nv->document_rotation) {
+        nv->showborder = FALSE;
+    } else {
+        Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+        nv->showborder = prefs->getBool("/template/base/showborder", 1.0);
+    }
+   
+    SPDesktop * desktop = SP_ACTIVE_DESKTOP;
+    if (desktop) {
+//TODO: Remove knots of shapes on selected items
+//        Inkscape::Selection * sel = desktop->getSelection();
+//        std::vector<SPItem*> il(sel->items().begin(), sel->items().end());
+//        for (std::vector<SPItem*>::const_iterator l = il.begin(); l != il.end(); l++){
+//            SPItem *item = *l;
+//            sel->remove(item->getRepr());
+//            sel->add(item->getRepr());
+//        }
+        SPObject *updated = desktop->getDocument()->getRoot();
+        if (updated) {
+            updated->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
+        }
+    }
+}
+
 static void sp_namedview_show_single_guide(SPGuide* guide, bool show)
 {
     if (show) {
@@ -953,6 +1047,8 @@
     guide->set_locked(locked, true);
 }
 
+
+
 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
 {
     unsigned int v;
 
=== modified file 'src/sp-namedview.h'
--- src/sp-namedview.h	2016-06-08 08:35:36 +0000
+++ src/sp-namedview.h	2017-01-24 17:53:20 +0000
@@ -21,6 +21,7 @@
 #include "snap.h"
 #include "document.h"
 #include "util/units.h"
+#include "display/sp-canvas.h"
 #include <vector>
 
 namespace Inkscape {
@@ -28,6 +29,9 @@
     namespace Util {
         class Unit;
     }
+    namespace Display {
+        class TemporaryItem;
+    }
 }
 
 typedef unsigned int guint32;
@@ -38,7 +42,7 @@
     SP_BORDER_LAYER_TOP
 };
 
-class SPNamedView : public SPObjectGroup {
+class SPNamedView : public SPObjectGroup{
 public:
 	SPNamedView();
 	virtual ~SPNamedView();
@@ -54,6 +58,7 @@
     double zoom;
     double cx;
     double cy;
+    double document_rotation;
     int window_width;
     int window_height;
     int window_x;
@@ -66,7 +71,7 @@
 
     Inkscape::Util::Unit const *display_units;   // Units used for the UI (*not* the same as units of SVG coordinates)
     Inkscape::Util::Unit const *page_size_units; // Only used in "Custom size" part of Document Properties dialog 
-    
+    Inkscape::Display::TemporaryItem *page_border_rotated;
     GQuark default_layer_id;
 
     double connector_spacing;
@@ -121,7 +126,7 @@
 void sp_namedview_window_from_document(SPDesktop *desktop);
 void sp_namedview_document_from_window(SPDesktop *desktop);
 void sp_namedview_update_layers_from_document (SPDesktop *desktop);
-
+void sp_namedview_set_document_rotation(SPNamedView *nv);
 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr);
 void sp_namedview_guides_toggle_lock(SPDocument *doc, Inkscape::XML::Node *repr);
 void sp_namedview_show_grids(SPNamedView *namedview, bool show, bool dirty_document);
 
=== modified file 'src/ui/dialog/export.cpp'
--- src/ui/dialog/export.cpp	2017-01-04 23:08:02 +0000
+++ src/ui/dialog/export.cpp	2017-01-24 17:53:20 +0000
@@ -978,7 +978,9 @@
 
     SPNamedView *nv = desktop->getNamedView();
     SPDocument *doc = desktop->getDocument();
-
+    Geom::Affine rot = doc->getRoot()->c2p;
+    doc->getRoot()->c2p = doc->getRoot()->rotation.inverse() * doc->getRoot()->c2p;
+    doc->ensureUpToDate();
     bool exportSuccessful = false;
 
     bool hide = hide_export.get_active ();
@@ -1003,6 +1005,7 @@
 
         if (num < 1) {
             desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("No items selected."));
+            doc->getRoot()->c2p *= doc->getRoot()->rotation;
             return;
         }
 
@@ -1094,6 +1097,7 @@
         if (filename.empty()) {
             desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("You have to enter a filename."));
             sp_ui_error_dialog(_("You have to enter a filename"));
+            doc->getRoot()->c2p *= doc->getRoot()->rotation;
             return;
         }
 
@@ -1110,6 +1114,7 @@
         if (!((x1 > x0) && (y1 > y0) && (width > 0) && (height > 0))) {
             desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("The chosen area to be exported is invalid."));
             sp_ui_error_dialog(_("The chosen area to be exported is invalid"));
+            doc->getRoot()->c2p *= doc->getRoot()->rotation;
             return;
         }
 
@@ -1132,6 +1137,7 @@
 
             g_free(safeDir);
             g_free(error);
+            doc->getRoot()->c2p *= doc->getRoot()->rotation;
             return;
         }
 
@@ -1281,6 +1287,7 @@
             }
         }
     }
+    doc->getRoot()->c2p *= doc->getRoot()->rotation;
 } // end of sp_export_export_clicked()
 
 /// Called when Browse button is clicked
 
=== modified file 'src/ui/tools/tool-base.cpp'
--- src/ui/tools/tool-base.cpp	2016-08-09 09:33:34 +0000
+++ src/ui/tools/tool-base.cpp	2017-01-24 17:53:20 +0000
@@ -94,6 +94,7 @@
     , _grdrag(NULL)
     , shape_editor(NULL)
     , space_panning(false)
+    , rotating_mode(false)
     , _delayed_snap_event(NULL)
     , _dse_callback_in_process(false)
     , desktop(NULL)
@@ -327,99 +328,130 @@
     static unsigned int panning = 0;
     static unsigned int panning_cursor = 0;
     static unsigned int zoom_rb = 0;
+    static double angle = 0;
 
     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 
     /// @todo REmove redundant /value in preference keys
     tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);
     bool allow_panning = prefs->getBool("/options/spacebarpans/value");
+    int rotation_snap = 180.0/prefs->getInt("/options/rotationsnapsperpi/value", 12);
     gint ret = FALSE;
 
     switch (event->type) {
-    case GDK_2BUTTON_PRESS:
-        if (panning) {
-            panning = 0;
-            sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), event->button.time);
-            ret = TRUE;
-        } else {
-            /* sp_desktop_dialog(); */
-        }
-        break;
-
-    case GDK_BUTTON_PRESS:
-        // save drag origin
-        xp = (gint) event->button.x;
-        yp = (gint) event->button.y;
-        within_tolerance = true;
-
-        button_w = Geom::Point(event->button.x, event->button.y);
-
-        switch (event->button.button) {
-        case 1:
-            if (this->space_panning) {
-                // When starting panning, make sure there are no snap events pending because these might disable the panning again
-                if (_uses_snap) {
-                    sp_event_context_discard_delayed_snap_event(this);
-                }
-                panning = 1;
-
-                sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
-                        GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK
-                                | GDK_POINTER_MOTION_MASK
-                                | GDK_POINTER_MOTION_HINT_MASK, NULL,
-                        event->button.time - 1);
-
-                ret = TRUE;
-            }
-            break;
-
-        case 2:
-            if (event->button.state & GDK_SHIFT_MASK) {
-                zoom_rb = 2;
-            } else {
-                // When starting panning, make sure there are no snap events pending because these might disable the panning again
-                if (_uses_snap) {
-                    sp_event_context_discard_delayed_snap_event(this);
-                }
-                panning = 2;
-
-                sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
-                        GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK
-                                | GDK_POINTER_MOTION_HINT_MASK, NULL,
-                        event->button.time - 1);
-
-            }
-
-            ret = TRUE;
-            break;
-
-        case 3:
-            if ((event->button.state & GDK_SHIFT_MASK) || (event->button.state & GDK_CONTROL_MASK)) {
-                // When starting panning, make sure there are no snap events pending because these might disable the panning again
-                if (_uses_snap) {
-                    sp_event_context_discard_delayed_snap_event(this);
-                }
-                panning = 3;
-
-                sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
-                        GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK
-                                | GDK_POINTER_MOTION_HINT_MASK, NULL,
-                        event->button.time);
-
-                ret = TRUE;
-            } else {
-                sp_event_root_menu_popup(desktop, NULL, event);
-            }
-            break;
-
-        default:
-            break;
-        }
-        break;
-
-    case GDK_MOTION_NOTIFY:
-        if (panning) {
-            if (panning == 4 && !xp && !yp ) {
+        case GDK_2BUTTON_PRESS:
+            if (panning) {
+                panning = 0;
+                sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), event->button.time);
+                ret = TRUE;
+            } else {
+                /* sp_desktop_dialog(); */
+            }
+            break;
+
+        case GDK_BUTTON_PRESS:
+            // save drag origin
+            xp = (gint) event->button.x;
+            yp = (gint) event->button.y;
+            within_tolerance = true;
+
+            button_w = Geom::Point(event->button.x, event->button.y);
+            switch (event->button.button) {
+            case 1:
+                if (this->space_panning) {
+                    // When starting panning, make sure there are no snap events pending because these might disable the panning again
+                    if (_uses_snap) {
+                        sp_event_context_discard_delayed_snap_event(this);
+                    }
+                    panning = 1;
+
+                    sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
+                            GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK
+                                    | GDK_POINTER_MOTION_MASK
+                                    | GDK_POINTER_MOTION_HINT_MASK, NULL,
+                            event->button.time - 1);
+
+                    ret = TRUE;
+                }
+                desktop->canvas->clearRotateTo();
+                this->rotating_mode = false;
+                break;
+
+            case 2:
+                if (event->button.state & GDK_CONTROL_MASK) {
+                    sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), event->button.time);
+                    desktop->canvas->startRotateTo(desktop->namedview->document_rotation);
+                    this->rotating_mode = true;
+                    this->message_context->set(Inkscape::INFORMATION_MESSAGE,
+                            _("<b>MMB + mouse move</b> to rotate canvas, use modifiers on screen to change snaps"));
+                } else {
+                    if (event->button.state & GDK_SHIFT_MASK) {
+                        zoom_rb = 2;
+                    } else {
+                        // When starting panning, make sure there are no snap events pending because these might disable the panning again
+                        if (_uses_snap) {
+                            sp_event_context_discard_delayed_snap_event(this);
+                        }
+                        panning = 2;
+
+                        sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
+                                GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK
+                                        | GDK_POINTER_MOTION_HINT_MASK, NULL,
+                                event->button.time - 1);
+                    }
+                    ret = TRUE;
+                }
+                ret = TRUE;
+                break;
+
+            case 3:
+                if ((event->button.state & GDK_SHIFT_MASK) || (event->button.state & GDK_CONTROL_MASK)) {
+                    // When starting panning, make sure there are no snap events pending because these might disable the panning again
+                    if (_uses_snap) {
+                        sp_event_context_discard_delayed_snap_event(this);
+                    }
+                    panning = 3;
+
+                    sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
+                            GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK
+                                    | GDK_POINTER_MOTION_HINT_MASK, NULL,
+                            event->button.time);
+
+                    ret = TRUE;
+                } else if( !this->space_panning) {
+                    sp_event_root_menu_popup(desktop, NULL, event);
+                }
+                ret = TRUE;
+                desktop->canvas->clearRotateTo();
+                this->rotating_mode = false;
+                break;
+
+            default:
+                break;
+            }
+            break;
+
+        case GDK_MOTION_NOTIFY:
+            if (this->rotating_mode) {
+                button_w = Geom::Point(event->motion.x, event->motion.y);
+                Geom::Point const motion_dt(desktop->doc2dt(desktop->w2d(button_w)));
+                Geom::Rect view = desktop->get_display_area();
+                Geom::Point view_center = desktop->doc2dt(view.midpoint());
+                Geom::Ray center_ray(motion_dt, view_center);
+                angle = Geom::deg_from_rad(center_ray.angle()) - 90;
+                if (event->motion.state & GDK_SHIFT_MASK && event->motion.state & GDK_CONTROL_MASK) {
+                    angle = 0;
+                } else if(event->motion.state & GDK_CONTROL_MASK) {
+                    angle = floor(angle/rotation_snap) * rotation_snap;
+                } else if (event->motion.state & GDK_SHIFT_MASK) {
+                    angle = desktop->namedview->document_rotation;
+                } else if (event->motion.state & GDK_MOD1_MASK) {
+                    //Decimal raw angle
+                } else {
+                    angle = floor(angle);
+                }
+                desktop->canvas->rotateTo(angle);
+            } else if (panning == 4 && !xp && !yp ) {
                 // <Space> + mouse panning started, save location and grab canvas
                 xp = event->motion.x;
                 yp = event->motion.y;
@@ -431,401 +463,465 @@
                                 | GDK_POINTER_MOTION_HINT_MASK, NULL,
                         event->motion.time - 1);
             }
-
-            if ((panning == 2 && !(event->motion.state & GDK_BUTTON2_MASK))
-                    || (panning == 1 && !(event->motion.state & GDK_BUTTON1_MASK))
-                    || (panning == 3 && !(event->motion.state & GDK_BUTTON3_MASK))) {
-                /* Gdk seems to lose button release for us sometimes :-( */
-                panning = 0;
-                sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), event->button.time);
-                ret = TRUE;
-            } else {
+            if (panning && !this->rotating_mode) {
+                if ((panning == 2 && !(event->motion.state & GDK_BUTTON2_MASK))
+                        || (panning == 1 && !(event->motion.state & GDK_BUTTON1_MASK))
+                        || (panning == 3 && !(event->motion.state & GDK_BUTTON3_MASK))) {
+                    /* Gdk seems to lose button release for us sometimes :-( */
+                    panning = 0;
+                    sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), event->button.time);
+                    ret = TRUE;
+                } else {
+                    if (within_tolerance && (abs((gint) event->motion.x - xp)
+                            < tolerance) && (abs((gint) event->motion.y - yp)
+                            < tolerance)) {
+                        // do not drag if we're within tolerance from origin
+                        break;
+                    }
+
+                    // Once the user has moved farther than tolerance from
+                    // the original location (indicating they intend to move
+                    // the object, not click), then always process the motion
+                    // notify coordinates as given (no snapping back to origin)
+                    within_tolerance = false;
+
+                    // gobble subsequent motion events to prevent "sticking"
+                    // when scrolling is slow
+                    gobble_motion_events(panning == 2 ? GDK_BUTTON2_MASK : (panning
+                            == 1 ? GDK_BUTTON1_MASK : GDK_BUTTON3_MASK));
+
+                    if (panning_cursor == 0) {
+                        panning_cursor = 1;
+                        this->sp_event_context_set_cursor(GDK_FLEUR);
+                    }
+
+                    Geom::Point const motion_w(event->motion.x, event->motion.y);
+                    Geom::Point const moved_w(motion_w - button_w);
+                    this->desktop->scroll_world(moved_w, true); // we're still scrolling, do not redraw
+                    ret = TRUE;
+                }
+            } else if (zoom_rb) {
+                Geom::Point const motion_w(event->motion.x, event->motion.y);
+                Geom::Point const motion_dt(desktop->w2d(motion_w));
+
                 if (within_tolerance && (abs((gint) event->motion.x - xp)
                         < tolerance) && (abs((gint) event->motion.y - yp)
                         < tolerance)) {
-                    // do not drag if we're within tolerance from origin
-                    break;
+                    break; // do not drag if we're within tolerance from origin
                 }
 
-                // Once the user has moved farther than tolerance from
-                // the original location (indicating they intend to move
-                // the object, not click), then always process the motion
-                // notify coordinates as given (no snapping back to origin)
+                // Once the user has moved farther than tolerance from the original location
+                // (indicating they intend to move the object, not click), then always process the
+                // motion notify coordinates as given (no snapping back to origin)
                 within_tolerance = false;
 
-                // gobble subsequent motion events to prevent "sticking"
-                // when scrolling is slow
-                gobble_motion_events(panning == 2 ? GDK_BUTTON2_MASK : (panning
-                        == 1 ? GDK_BUTTON1_MASK : GDK_BUTTON3_MASK));
-
-                if (panning_cursor == 0) {
-                    panning_cursor = 1;
-                    this->sp_event_context_set_cursor(GDK_FLEUR);
-                }
-
-                Geom::Point const motion_w(event->motion.x, event->motion.y);
-                Geom::Point const moved_w(motion_w - button_w);
-                this->desktop->scroll_world(moved_w, true); // we're still scrolling, do not redraw
+                if (Inkscape::Rubberband::get(desktop)->is_started()) {
+                    Inkscape::Rubberband::get(desktop)->move(motion_dt);
+                } else {
+                    Inkscape::Rubberband::get(desktop)->start(desktop, motion_dt);
+                }
+
+                if (zoom_rb == 2) {
+                    gobble_motion_events(GDK_BUTTON2_MASK);
+                }
+            }
+            break;
+
+        case GDK_BUTTON_RELEASE:
+            if (this->rotating_mode && event->button.button == 2) {
+                desktop->canvas->clearRotateTo();
+                this->rotating_mode = false;
                 ret = TRUE;
-            }
-        } else if (zoom_rb) {
-            Geom::Point const motion_w(event->motion.x, event->motion.y);
-            Geom::Point const motion_dt(desktop->w2d(motion_w));
-
-            if (within_tolerance && (abs((gint) event->motion.x - xp)
-                    < tolerance) && (abs((gint) event->motion.y - yp)
-                    < tolerance)) {
-                break; // do not drag if we're within tolerance from origin
-            }
-
-            // Once the user has moved farther than tolerance from the original location
-            // (indicating they intend to move the object, not click), then always process the
-            // motion notify coordinates as given (no snapping back to origin)
-            within_tolerance = false;
-
-            if (Inkscape::Rubberband::get(desktop)->is_started()) {
-                Inkscape::Rubberband::get(desktop)->move(motion_dt);
+                if (desktop->canvas->endRotateTo()) {
+                    sp_repr_set_svg_double(desktop->namedview->getRepr(), "inkscape:document-rotation", angle);
+                }
             } else {
-                Inkscape::Rubberband::get(desktop)->start(desktop, motion_dt);
-            }
-
-            if (zoom_rb == 2) {
-                gobble_motion_events(GDK_BUTTON2_MASK);
-            }
-        }
-        break;
-
-    case GDK_BUTTON_RELEASE:
-        xp = yp = 0;
-
-        if (panning_cursor == 1) {
-            panning_cursor = 0;
-            GtkWidget *w = GTK_WIDGET(this->desktop->getCanvas());
-            gdk_window_set_cursor(gtk_widget_get_window (w), this->cursor);
-        }
-
-        if (within_tolerance && (panning || zoom_rb)) {
-            zoom_rb = 0;
+                xp = yp = 0;
+                if (panning_cursor == 1) {
+                    panning_cursor = 0;
+                    GtkWidget *w = GTK_WIDGET(this->desktop->getCanvas());
+                    gdk_window_set_cursor(gtk_widget_get_window (w), this->cursor);
+                }
+
+                if (within_tolerance && (panning || zoom_rb)) {
+                    zoom_rb = 0;
+
+                    if (panning) {
+                        panning = 0;
+                        sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
+                                event->button.time);
+                    }
+
+                    Geom::Point const event_w(event->button.x, event->button.y);
+                    Geom::Point const event_dt(desktop->w2d(event_w));
+
+                    double const zoom_inc = prefs->getDoubleLimited(
+                            "/options/zoomincrement/value", M_SQRT2, 1.01, 10);
+
+                    desktop->zoom_relative_keep_point(event_dt, (event->button.state
+                            & GDK_SHIFT_MASK) ? 1 / zoom_inc : zoom_inc);
+
+                    desktop->updateNow();
+                    ret = TRUE;
+                } else if (panning == event->button.button) {
+                    panning = 0;
+                    sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
+                            event->button.time);
+
+                    // in slow complex drawings, some of the motion events are lost;
+                    // to make up for this, we scroll it once again to the button-up event coordinates
+                    // (i.e. canvas will always get scrolled all the way to the mouse release point,
+                    // even if few intermediate steps were visible)
+                    Geom::Point const motion_w(event->button.x, event->button.y);
+                    Geom::Point const moved_w(motion_w - button_w);
+
+                    this->desktop->scroll_world(moved_w);
+                    desktop->updateNow();
+                    ret = TRUE;
+                } else if (zoom_rb == event->button.button) {
+                    zoom_rb = 0;
+
+                    Geom::OptRect const b = Inkscape::Rubberband::get(desktop)->getRectangle();
+                    Inkscape::Rubberband::get(desktop)->stop();
+
+                    if (b && !within_tolerance) {
+                        desktop->set_display_area(*b, 10);
+                    }
+
+                    ret = TRUE;
+                }
+                if (this->rotating_mode && event->button.button != 3) {
+                    desktop->canvas->clearRotateTo();
+                    this->rotating_mode = false;
+                    ret = TRUE;
+                    desktop->canvas->endRotateTo();
+                }
+            }
+            break;
+
+        case GDK_KEY_PRESS: {
+            double const acceleration = prefs->getDoubleLimited(
+                    "/options/scrollingacceleration/value", 0, 0, 6);
+            int const key_scroll = prefs->getIntLimited("/options/keyscroll/value",
+                    10, 0, 1000);
+
+            if (this->rotating_mode && 
+                get_group0_keyval(&event->key) != GDK_KEY_space &&
+                get_group0_keyval(&event->key) != GDK_KEY_Shift_L &&
+                get_group0_keyval(&event->key) != GDK_KEY_Shift_R &&
+                get_group0_keyval(&event->key) != GDK_KEY_Control_L &&
+                get_group0_keyval(&event->key) != GDK_KEY_Control_R &&
+                get_group0_keyval(&event->key) != GDK_KEY_Alt_L &&
+                get_group0_keyval(&event->key) != GDK_KEY_Alt_R ) 
+            {
+                desktop->canvas->clearRotateTo();
+                this->rotating_mode = false;
+                ret = TRUE;
+                desktop->canvas->endRotateTo();
+                break;
+            }
+
+            switch (get_group0_keyval(&event->key)) {
+            // GDK insists on stealing these keys (F1 for no idea what, tab for cycling widgets
+            // in the editing window). So we resteal them back and run our regular shortcut
+            // invoker on them.
+            unsigned int shortcut;
+            case GDK_KEY_Tab:
+            case GDK_KEY_ISO_Left_Tab:
+            case GDK_KEY_F1:
+                shortcut = get_group0_keyval(&event->key);
+
+                if (event->key.state & GDK_SHIFT_MASK) {
+                    shortcut |= SP_SHORTCUT_SHIFT_MASK;
+                }
+
+                if (event->key.state & GDK_CONTROL_MASK) {
+                    shortcut |= SP_SHORTCUT_CONTROL_MASK;
+                }
+
+                if (event->key.state & GDK_MOD1_MASK) {
+                    shortcut |= SP_SHORTCUT_ALT_MASK;
+                }
+
+                ret = sp_shortcut_invoke(shortcut, desktop);
+                break;
+
+            case GDK_KEY_Q:
+            case GDK_KEY_q:
+                if (desktop->quick_zoomed()) {
+                    ret = TRUE;
+                }
+                if (!MOD__SHIFT(event) && !MOD__CTRL(event) && !MOD__ALT(event)) {
+                    desktop->zoom_quick(true);
+                    ret = TRUE;
+                }
+                break;
+
+            case GDK_KEY_W:
+            case GDK_KEY_w:
+            case GDK_KEY_F4:
+                /* Close view */
+                if (MOD__CTRL_ONLY(event)) {
+                    sp_ui_close_view(NULL);
+                    ret = TRUE;
+                }
+                break;
+
+            case GDK_KEY_Left: // Ctrl Left
+            case GDK_KEY_KP_Left:
+            case GDK_KEY_KP_4:
+                if (MOD__CTRL_ONLY(event)) {
+                    int i = (int) floor(key_scroll * accelerate_scroll(event,
+                            acceleration, desktop->getCanvas()));
+
+                    gobble_key_events(get_group0_keyval(&event->key), GDK_CONTROL_MASK);
+                    this->desktop->scroll_world(i, 0);
+                    ret = TRUE;
+                }
+                break;
+
+            case GDK_KEY_Up: // Ctrl Up
+            case GDK_KEY_KP_Up:
+            case GDK_KEY_KP_8:
+                if (MOD__CTRL_ONLY(event)) {
+                    int i = (int) floor(key_scroll * accelerate_scroll(event,
+                            acceleration, desktop->getCanvas()));
+
+                    gobble_key_events(get_group0_keyval(&event->key), GDK_CONTROL_MASK);
+                    this->desktop->scroll_world(0, i);
+                    ret = TRUE;
+                }
+                break;
+
+            case GDK_KEY_Right: // Ctrl Right
+            case GDK_KEY_KP_Right:
+            case GDK_KEY_KP_6:
+                if (MOD__CTRL_ONLY(event)) {
+                    int i = (int) floor(key_scroll * accelerate_scroll(event,
+                            acceleration, desktop->getCanvas()));
+
+                    gobble_key_events(get_group0_keyval(&event->key), GDK_CONTROL_MASK);
+                    this->desktop->scroll_world(-i, 0);
+                    ret = TRUE;
+                }
+                break;
+
+            case GDK_KEY_Down: // Ctrl Down
+            case GDK_KEY_KP_Down:
+            case GDK_KEY_KP_2:
+                if (MOD__CTRL_ONLY(event)) {
+                    int i = (int) floor(key_scroll * accelerate_scroll(event,
+                            acceleration, desktop->getCanvas()));
+
+                    gobble_key_events(get_group0_keyval(&event->key), GDK_CONTROL_MASK);
+                    this->desktop->scroll_world(0, -i);
+                    ret = TRUE;
+                }
+                break;
+
+            case GDK_KEY_Menu:
+                sp_event_root_menu_popup(desktop, NULL, event);
+                ret = TRUE;
+                break;
+
+            case GDK_KEY_F10:
+                if (MOD__SHIFT_ONLY(event)) {
+                    sp_event_root_menu_popup(desktop, NULL, event);
+                    ret = TRUE;
+                }
+                break;
+
+            case GDK_KEY_space:
+                if (event->key.state & GDK_CONTROL_MASK) {
+                    sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), event->button.time);
+                    desktop->canvas->startRotateTo(desktop->namedview->document_rotation);
+                    this->rotating_mode = true;
+                    this->message_context->set(Inkscape::INFORMATION_MESSAGE,
+                            _("<b>Space+mouse move</b> to rotate canvas, use modifiers on screen to change snaps"));
+                } else {
+                    within_tolerance = true;
+                    xp = yp = 0;
+                    if (!allow_panning) break;
+                    panning = 4;
+                    this->space_panning = true;
+                    this->message_context->set(Inkscape::INFORMATION_MESSAGE,
+                            _("<b>Space+mouse move</b> to pan canvas"));
+                }
+                ret = TRUE;
+                break;
+
+            case GDK_KEY_z:
+            case GDK_KEY_Z:
+                if (MOD__ALT_ONLY(event)) {
+                    desktop->zoom_grab_focus();
+                    ret = TRUE;
+                }
+                break;
+
+            default:
+                break;
+                }
+            }
+            break;
+
+        case GDK_KEY_RELEASE:
+            if (this->rotating_mode && 
+                get_group0_keyval(&event->key) != GDK_KEY_space &&
+                get_group0_keyval(&event->key) != GDK_KEY_Shift_L &&
+                get_group0_keyval(&event->key) != GDK_KEY_Shift_R &&
+                get_group0_keyval(&event->key) != GDK_KEY_Control_L &&
+                get_group0_keyval(&event->key) != GDK_KEY_Control_R &&
+                get_group0_keyval(&event->key) != GDK_KEY_Alt_L &&
+                get_group0_keyval(&event->key) != GDK_KEY_Alt_R ) 
+            {
+                desktop->canvas->clearRotateTo();
+                this->rotating_mode = false;
+                ret = TRUE;
+                desktop->canvas->endRotateTo();
+                break;
+            }
+
+            // Stop panning on any key release
+            if (this->space_panning) {
+                this->space_panning = false;
+                this->message_context->clear();
+            }
 
             if (panning) {
                 panning = 0;
+                xp = yp = 0;
+
                 sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
-                        event->button.time);
-            }
-
-            Geom::Point const event_w(event->button.x, event->button.y);
-            Geom::Point const event_dt(desktop->w2d(event_w));
-
-            double const zoom_inc = prefs->getDoubleLimited(
-                    "/options/zoomincrement/value", M_SQRT2, 1.01, 10);
-
-            desktop->zoom_relative_keep_point(event_dt, (event->button.state
-                    & GDK_SHIFT_MASK) ? 1 / zoom_inc : zoom_inc);
-
-            desktop->updateNow();
-            ret = TRUE;
-        } else if (panning == event->button.button) {
-            panning = 0;
-            sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
-                    event->button.time);
-
-            // in slow complex drawings, some of the motion events are lost;
-            // to make up for this, we scroll it once again to the button-up event coordinates
-            // (i.e. canvas will always get scrolled all the way to the mouse release point,
-            // even if few intermediate steps were visible)
-            Geom::Point const motion_w(event->button.x, event->button.y);
-            Geom::Point const moved_w(motion_w - button_w);
-
-            this->desktop->scroll_world(moved_w);
-            desktop->updateNow();
-            ret = TRUE;
-        } else if (zoom_rb == event->button.button) {
-            zoom_rb = 0;
-
-            Geom::OptRect const b = Inkscape::Rubberband::get(desktop)->getRectangle();
-            Inkscape::Rubberband::get(desktop)->stop();
-
-            if (b && !within_tolerance) {
-                desktop->set_display_area(*b, 10);
-            }
-
-            ret = TRUE;
-        }
-        break;
-
-    case GDK_KEY_PRESS: {
-        double const acceleration = prefs->getDoubleLimited(
-                "/options/scrollingacceleration/value", 0, 0, 6);
-        int const key_scroll = prefs->getIntLimited("/options/keyscroll/value",
-                10, 0, 1000);
-
-        switch (get_group0_keyval(&event->key)) {
-        // GDK insists on stealing these keys (F1 for no idea what, tab for cycling widgets
-        // in the editing window). So we resteal them back and run our regular shortcut
-        // invoker on them.
-        unsigned int shortcut;
-        case GDK_KEY_Tab:
-        case GDK_KEY_ISO_Left_Tab:
-        case GDK_KEY_F1:
-            shortcut = get_group0_keyval(&event->key);
-
-            if (event->key.state & GDK_SHIFT_MASK) {
-                shortcut |= SP_SHORTCUT_SHIFT_MASK;
-            }
-
-            if (event->key.state & GDK_CONTROL_MASK) {
-                shortcut |= SP_SHORTCUT_CONTROL_MASK;
-            }
-
-            if (event->key.state & GDK_MOD1_MASK) {
-                shortcut |= SP_SHORTCUT_ALT_MASK;
-            }
-
-            ret = sp_shortcut_invoke(shortcut, desktop);
-            break;
-
-        case GDK_KEY_Q:
-        case GDK_KEY_q:
-            if (desktop->quick_zoomed()) {
-                ret = TRUE;
-            }
-            if (!MOD__SHIFT(event) && !MOD__CTRL(event) && !MOD__ALT(event)) {
-                desktop->zoom_quick(true);
-                ret = TRUE;
-            }
-            break;
-
-        case GDK_KEY_W:
-        case GDK_KEY_w:
-        case GDK_KEY_F4:
-            /* Close view */
-            if (MOD__CTRL_ONLY(event)) {
-                sp_ui_close_view(NULL);
-                ret = TRUE;
-            }
-            break;
-
-        case GDK_KEY_Left: // Ctrl Left
-        case GDK_KEY_KP_Left:
-        case GDK_KEY_KP_4:
-            if (MOD__CTRL_ONLY(event)) {
-                int i = (int) floor(key_scroll * accelerate_scroll(event,
-                        acceleration, desktop->getCanvas()));
-
-                gobble_key_events(get_group0_keyval(&event->key), GDK_CONTROL_MASK);
-                this->desktop->scroll_world(i, 0);
-                ret = TRUE;
-            }
-            break;
-
-        case GDK_KEY_Up: // Ctrl Up
-        case GDK_KEY_KP_Up:
-        case GDK_KEY_KP_8:
-            if (MOD__CTRL_ONLY(event)) {
-                int i = (int) floor(key_scroll * accelerate_scroll(event,
-                        acceleration, desktop->getCanvas()));
-
-                gobble_key_events(get_group0_keyval(&event->key), GDK_CONTROL_MASK);
-                this->desktop->scroll_world(0, i);
-                ret = TRUE;
-            }
-            break;
-
-        case GDK_KEY_Right: // Ctrl Right
-        case GDK_KEY_KP_Right:
-        case GDK_KEY_KP_6:
-            if (MOD__CTRL_ONLY(event)) {
-                int i = (int) floor(key_scroll * accelerate_scroll(event,
-                        acceleration, desktop->getCanvas()));
-
-                gobble_key_events(get_group0_keyval(&event->key), GDK_CONTROL_MASK);
-                this->desktop->scroll_world(-i, 0);
-                ret = TRUE;
-            }
-            break;
-
-        case GDK_KEY_Down: // Ctrl Down
-        case GDK_KEY_KP_Down:
-        case GDK_KEY_KP_2:
-            if (MOD__CTRL_ONLY(event)) {
-                int i = (int) floor(key_scroll * accelerate_scroll(event,
-                        acceleration, desktop->getCanvas()));
-
-                gobble_key_events(get_group0_keyval(&event->key), GDK_CONTROL_MASK);
-                this->desktop->scroll_world(0, -i);
-                ret = TRUE;
-            }
-            break;
-
-        case GDK_KEY_Menu:
-            sp_event_root_menu_popup(desktop, NULL, event);
-            ret = TRUE;
-            break;
-
-        case GDK_KEY_F10:
-            if (MOD__SHIFT_ONLY(event)) {
-                sp_event_root_menu_popup(desktop, NULL, event);
-                ret = TRUE;
-            }
-            break;
-
-        case GDK_KEY_space:
-            within_tolerance = true;
-            xp = yp = 0;
-            if (!allow_panning) break;
-            panning = 4;
-            this->space_panning = true;
-            this->message_context->set(Inkscape::INFORMATION_MESSAGE,
-                    _("<b>Space+mouse move</b> to pan canvas"));
-
-            ret = TRUE;
-            break;
-
-        case GDK_KEY_z:
-        case GDK_KEY_Z:
-            if (MOD__ALT_ONLY(event)) {
-                desktop->zoom_grab_focus();
-                ret = TRUE;
-            }
-            break;
-
-        default:
-            break;
-            }
-        }
-        break;
-
-    case GDK_KEY_RELEASE:
-        // Stop panning on any key release
-        if (this->space_panning) {
-            this->space_panning = false;
-            this->message_context->clear();
-        }
-
-        if (panning) {
-            panning = 0;
-            xp = yp = 0;
-
-            sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
-                    event->key.time);
-
-            desktop->updateNow();
-        }
-
-        if (panning_cursor == 1) {
-            panning_cursor = 0;
-            GtkWidget *w = GTK_WIDGET(this->desktop->getCanvas());
-            gdk_window_set_cursor(gtk_widget_get_window (w), this->cursor);
-        }
-
-        switch (get_group0_keyval(&event->key)) {
-        case GDK_KEY_space:
-            if (within_tolerance) {
-                // Space was pressed, but not panned
-                sp_toggle_selector(desktop);
-
-                // Be careful, sp_toggle_selector will delete ourselves.
-                // Thus, make sure we return immediately.
-                return true;
-            }
-
-            break;
-
-        case GDK_KEY_Q:
-        case GDK_KEY_q:
-            if (desktop->quick_zoomed()) {
-                desktop->zoom_quick(false);
-                ret = TRUE;
-            }
-            break;
-
-        default:
-            break;
-        }
-        break;
-
-    case GDK_SCROLL: {
-        bool ctrl = (event->scroll.state & GDK_CONTROL_MASK);
-        bool wheelzooms = prefs->getBool("/options/wheelzooms/value");
-
-        int const wheel_scroll = prefs->getIntLimited(
-                "/options/wheelscroll/value", 40, 0, 1000);
-
-        // Size of smooth-scrolls (only used in GTK+ 3)
-        gdouble delta_x = 0;
-        gdouble delta_y = 0;
-
-        /* shift + wheel, pan left--right */
-        if (event->scroll.state & GDK_SHIFT_MASK) {
-            switch (event->scroll.direction) {
-            case GDK_SCROLL_UP:
-                desktop->scroll_world(wheel_scroll, 0);
-                break;
-
-            case GDK_SCROLL_DOWN:
-                desktop->scroll_world(-wheel_scroll, 0);
-                break;
-
-            default:
-                break;
-            }
-
-            /* ctrl + wheel, zoom in--out */
-        } else if ((ctrl && !wheelzooms) || (!ctrl && wheelzooms)) {
-            double rel_zoom;
-            double const zoom_inc = prefs->getDoubleLimited(
-                    "/options/zoomincrement/value", M_SQRT2, 1.01, 10);
-
-            switch (event->scroll.direction) {
-            case GDK_SCROLL_UP:
-                rel_zoom = zoom_inc;
-                break;
-
-            case GDK_SCROLL_DOWN:
-                rel_zoom = 1 / zoom_inc;
-                break;
-
-            default:
-                rel_zoom = 0.0;
-                break;
-            }
-
-            if (rel_zoom != 0.0) {
-                Geom::Point const scroll_dt = desktop->point();
-                desktop->zoom_relative_keep_point(scroll_dt, rel_zoom);
-            }
-
-            /* no modifier, pan up--down (left--right on multiwheel mice?) */
-        } else {
-            switch (event->scroll.direction) {
-            case GDK_SCROLL_UP:
-                desktop->scroll_world(0, wheel_scroll);
-                break;
-
-            case GDK_SCROLL_DOWN:
-                desktop->scroll_world(0, -wheel_scroll);
-                break;
-
-            case GDK_SCROLL_LEFT:
-                desktop->scroll_world(wheel_scroll, 0);
-                break;
-
-            case GDK_SCROLL_RIGHT:
-                desktop->scroll_world(-wheel_scroll, 0);
-                break;
-
-            case GDK_SCROLL_SMOOTH:
-                gdk_event_get_scroll_deltas(event, &delta_x, &delta_y);
-                desktop->scroll_world(delta_x, delta_y);
-                break;
-            }
-        }
-        break;
-    }
-    default:
-        break;
-    }
-
+                        event->key.time);
+
+                desktop->updateNow();
+            }
+
+            if (panning_cursor == 1) {
+                panning_cursor = 0;
+                GtkWidget *w = GTK_WIDGET(this->desktop->getCanvas());
+                gdk_window_set_cursor(gtk_widget_get_window (w), this->cursor);
+            }
+
+            switch (get_group0_keyval(&event->key)) {
+            case GDK_KEY_space:
+                if (this->rotating_mode) {
+                    desktop->canvas->clearRotateTo();
+                    this->rotating_mode = false;
+                    ret = TRUE;
+                    if (desktop->canvas->endRotateTo()) {
+                        sp_repr_set_svg_double(desktop->namedview->getRepr(), "inkscape:document-rotation", angle);
+                    }
+                }
+                if (within_tolerance) {
+                    // Space was pressed, but not panned
+                    sp_toggle_selector(desktop);
+
+                    // Be careful, sp_toggle_selector will delete ourselves.
+                    // Thus, make sure we return immediately.
+                    return true;
+                }
+                break;
+
+            case GDK_KEY_Q:
+            case GDK_KEY_q:
+                if (desktop->quick_zoomed()) {
+                    desktop->zoom_quick(false);
+                    ret = TRUE;
+                }
+                break;
+
+            default:
+                break;
+            }
+            break;
+
+        case GDK_SCROLL: {
+            if (this->rotating_mode) {
+                desktop->canvas->clearRotateTo();
+                this->rotating_mode = false;
+                desktop->canvas->endRotateTo();
+            }
+            bool ctrl = (event->scroll.state & GDK_CONTROL_MASK);
+            bool wheelzooms = prefs->getBool("/options/wheelzooms/value");
+
+            int const wheel_scroll = prefs->getIntLimited(
+                    "/options/wheelscroll/value", 40, 0, 1000);
+
+            // Size of smooth-scrolls (only used in GTK+ 3)
+            gdouble delta_x = 0;
+            gdouble delta_y = 0;
+
+            /* shift + wheel, pan left--right */
+            if (event->scroll.state & GDK_SHIFT_MASK) {
+                switch (event->scroll.direction) {
+                case GDK_SCROLL_UP:
+                    desktop->scroll_world(wheel_scroll, 0);
+                    break;
+
+                case GDK_SCROLL_DOWN:
+                    desktop->scroll_world(-wheel_scroll, 0);
+                    break;
+
+                default:
+                    break;
+                }
+
+                /* ctrl + wheel, zoom in--out */
+            } else if ((ctrl && !wheelzooms) || (!ctrl && wheelzooms)) {
+                double rel_zoom;
+                double const zoom_inc = prefs->getDoubleLimited(
+                        "/options/zoomincrement/value", M_SQRT2, 1.01, 10);
+
+                switch (event->scroll.direction) {
+                case GDK_SCROLL_UP:
+                    rel_zoom = zoom_inc;
+                    break;
+
+                case GDK_SCROLL_DOWN:
+                    rel_zoom = 1 / zoom_inc;
+                    break;
+
+                default:
+                    rel_zoom = 0.0;
+                    break;
+                }
+
+                if (rel_zoom != 0.0) {
+                    Geom::Point const scroll_dt = desktop->point();
+                    desktop->zoom_relative_keep_point(scroll_dt, rel_zoom);
+                }
+
+                /* no modifier, pan up--down (left--right on multiwheel mice?) */
+            } else {
+                switch (event->scroll.direction) {
+                case GDK_SCROLL_UP:
+                    desktop->scroll_world(0, wheel_scroll);
+                    break;
+
+                case GDK_SCROLL_DOWN:
+                    desktop->scroll_world(0, -wheel_scroll);
+                    break;
+
+                case GDK_SCROLL_LEFT:
+                    desktop->scroll_world(wheel_scroll, 0);
+                    break;
+
+                case GDK_SCROLL_RIGHT:
+                    desktop->scroll_world(-wheel_scroll, 0);
+                    break;
+
+                case GDK_SCROLL_SMOOTH:
+                    gdk_event_get_scroll_deltas(event, &delta_x, &delta_y);
+                    desktop->scroll_world(delta_x, delta_y);
+                    break;
+                }
+            }
+            break;
+        }
+        default:
+            break;
+    }
     return ret;
 }
 
 
=== modified file 'src/ui/tools/tool-base.h'
--- src/ui/tools/tool-base.h	2015-07-24 19:38:06 +0000
+++ src/ui/tools/tool-base.h	2017-01-24 17:53:20 +0000
@@ -176,6 +176,7 @@
     ShapeEditor* shape_editor;
 
     bool space_panning;
+    bool rotating_mode;
 
     DelayedSnapEvent *_delayed_snap_event;
     bool _dse_callback_in_process;
 
=== modified file 'src/viewbox.cpp'
--- src/viewbox.cpp	2016-08-03 13:29:38 +0000
+++ src/viewbox.cpp	2017-01-24 17:53:20 +0000
@@ -17,6 +17,8 @@
 #include "viewbox.h"
 #include "enums.h"
 #include "sp-item.h"
+#include "inkscape.h"
+#include "desktop.h"
 
 SPViewBox::SPViewBox()
     : viewBox_set(false)
@@ -25,6 +27,11 @@
     , aspect_align(SP_ASPECT_XMID_YMID) // Default per spec
     , aspect_clip(SP_ASPECT_MEET)
     , c2p(Geom::identity())
+    , vbt(Geom::identity())
+    , rotation(Geom::identity())
+    , angle(0)
+    , previous_angle(0)
+    , rotated(false)
 {
 }
 
@@ -159,6 +166,16 @@
   }
 }
 
+double SPViewBox::get_rotation() {
+    return this->angle;
+}
+
+void SPViewBox::set_rotation(double angle_val) {
+    this->previous_angle = this->angle;
+    this->angle = angle_val;
+    this->rotated = true;
+}
+
 // Apply scaling from viewbox
 void SPViewBox::apply_viewbox(const Geom::Rect& in, double scale_none) {
 
@@ -222,22 +239,41 @@
           break;
       }
     }
-
     /* Viewbox transform from scale and position */
-    Geom::Affine q;
-    q[0] = scale_x;
-    q[1] = 0.0;
-    q[2] = 0.0;
-    q[3] = scale_y;
-    q[4] = x - scale_x * this->viewBox.left();
-    q[5] = y - scale_y * this->viewBox.top();
-
-    // std::cout << "  q\n" << q << std::endl;
-
-    /* Append viewbox transformation */
-    this->c2p = q * this->c2p;
+    vbt = Geom::identity();
+    vbt[0] = scale_x;
+    vbt[1] = 0.0;
+    vbt[2] = 0.0;
+    vbt[3] = scale_y;
+    vbt[4] = x - scale_x * this->viewBox.left();
+    vbt[5] = y - scale_y * this->viewBox.top();
+    /* Append viewbox and turn transformation */
+    Geom::Point page_center = this->viewBox.midpoint();
+    SPDesktop * desktop = SP_ACTIVE_DESKTOP;
+    if (this->angle > 0.0 || this->angle < 0.0 ) { //!0
+        if (desktop) {
+            rotation = Geom::Translate(page_center).inverse() * Geom::Rotate(Geom::rad_from_deg(angle)) * Geom::Translate(page_center);
+            this->c2p = rotation * vbt * this->c2p;
+        } else {
+            this->c2p = vbt * this->c2p;
+        }
+    } else {
+        this->c2p = vbt * this->c2p;
+    }
+    if (desktop && this->rotated) {
+        Geom::Rect view = desktop->get_display_area();
+        Geom::Point view_center = desktop->doc2dt(view.midpoint());
+        Geom::Affine center_rotation = Geom::identity();
+        center_rotation *= Geom::Translate(page_center * vbt).inverse();
+        center_rotation *= Geom::Rotate(Geom::rad_from_deg(this->angle - this->previous_angle));
+        center_rotation *= Geom::Translate(page_center * vbt);
+        view_center = desktop->dt2doc(view_center * center_rotation);
+        desktop->zoom_relative(view_center[Geom::X], view_center[Geom::Y], 1.0);
+        this->rotated = false;
+    }
 }
 
+
 SPItemCtx SPViewBox::get_rctx(const SPItemCtx* ictx, double scale_none) {
 
   /* Create copy of item context */
 
=== modified file 'src/viewbox.h'
--- src/viewbox.h	2015-02-12 16:17:54 +0000
+++ src/viewbox.h	2017-01-24 17:53:20 +0000
@@ -36,7 +36,14 @@
 
   /* Child to parent additional transform */
   Geom::Affine c2p;
+  Geom::Affine vbt;
+  Geom::Affine rotation;
+  double angle;
+  double previous_angle;
+  bool rotated;
 
+  double get_rotation();
+  void set_rotation(double angle_val);
   void set_viewBox(const gchar* value);
   void set_preserveAspectRatio(const gchar* value);
 
 
=== modified file 'src/widgets/desktop-widget.cpp'
--- src/widgets/desktop-widget.cpp	2016-11-11 20:04:49 +0000
+++ src/widgets/desktop-widget.cpp	2017-01-24 17:53:20 +0000
@@ -54,7 +54,7 @@
 #include "ui/uxmanager.h"
 #include "util/ege-appear-time-tracker.h"
 #include "sp-root.h"
-
+#include "attributes.h"
 // We're in the "widgets" directory, so no need to explicitly prefix these:
 #include "button.h"
 #include "gimp/ruler.h"
@@ -62,11 +62,11 @@
 #include "spw-utilities.h"
 #include "toolbox.h"
 #include "widget-sizes.h"
-
 #include "verbs.h"
 #include <gtkmm/cssprovider.h>
 #include <gtkmm/paned.h>
 #include <gtkmm/messagedialog.h>
+#include <iomanip>
 
 #if defined (SOLARIS) && (SOLARIS == 8)
 #include "round.h"
@@ -105,8 +105,20 @@
 static void cms_adjust_toggled( GtkWidget *button, gpointer data );
 #endif // defined(HAVE_LIBLCMS1) || defined(HAVE_LIBLCMS2)
 static void cms_adjust_set_sensitive( SPDesktopWidget *dtw, bool enabled );
+static void sp_desktop_widget_rotate_document(GtkSpinButton *spin, SPDesktopWidget *dtw);
 static void sp_desktop_widget_adjustment_value_changed (GtkAdjustment *adj, SPDesktopWidget *dtw);
 
+static gint sp_dtw_rotation_input (GtkSpinButton *spin, gdouble *new_val, gpointer data);
+static bool sp_dtw_rotation_output (GtkSpinButton *spin, gpointer data);
+static void sp_dtw_rotation_populate_popup (GtkEntry *entry, GtkMenu *menu, gpointer data);
+static void sp_dtw_rotate_minus_180 (GtkMenuItem *item, SPDesktopWidget * data);
+static void sp_dtw_rotate_minus_135 (GtkMenuItem *item, SPDesktopWidget * data);
+static void sp_dtw_rotate_minus_90 (GtkMenuItem *item, SPDesktopWidget * data);
+static void sp_dtw_rotate_minus_45 (GtkMenuItem *item, SPDesktopWidget * data);
+static void sp_dtw_rotate_0 (GtkMenuItem *item, SPDesktopWidget * data);
+static void sp_dtw_rotate_45 (GtkMenuItem *item, SPDesktopWidget * data);
+static void sp_dtw_rotate_90 (GtkMenuItem *item, SPDesktopWidget * data);
+static void sp_dtw_rotate_135 (GtkMenuItem *item, SPDesktopWidget * data);
 static gdouble sp_dtw_zoom_value_to_display (gdouble value);
 static gdouble sp_dtw_zoom_display_to_value (gdouble value);
 static gint sp_dtw_zoom_input (GtkSpinButton *spin, gdouble *new_val, gpointer data);
@@ -593,6 +605,34 @@
     g_signal_connect (G_OBJECT (dtw->zoom_status), "key-press-event", G_CALLBACK (spinbutton_keypress), dtw->zoom_status);
     dtw->zoom_update = g_signal_connect (G_OBJECT (dtw->zoom_status), "value_changed", G_CALLBACK (sp_dtw_zoom_value_changed), dtw);
     dtw->zoom_update = g_signal_connect (G_OBJECT (dtw->zoom_status), "populate_popup", G_CALLBACK (sp_dtw_zoom_populate_popup), dtw);
+    auto css_provider_spinbutton = Gtk::CssProvider::create();
+    css_provider_spinbutton->load_from_data("* { padding-left: 2; padding-right: 2; padding-top: 0; padding-bottom: 0;}");
+    auto zoomstat = Glib::wrap(dtw->zoom_status);
+    zoomstat->set_name("ZoomStatus");
+    auto context_zoom = zoomstat->get_style_context();
+    context_zoom->add_provider(css_provider_spinbutton, GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+    
+    // Rotate status spinbutton
+    dtw->rotation_status = gtk_spin_button_new_with_range (-360.0,360.0, 1.0);
+    gtk_widget_set_tooltip_text (dtw->rotation_status, _("Rotation"));
+    gtk_widget_set_size_request (dtw->rotation_status, STATUS_ROTATION_WIDTH, -1);
+    gtk_entry_set_width_chars (GTK_ENTRY (dtw->rotation_status), 7);
+    gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (dtw->rotation_status), FALSE);
+    gtk_spin_button_set_digits (GTK_SPIN_BUTTON (dtw->rotation_status), 2);
+    gtk_spin_button_set_update_policy (GTK_SPIN_BUTTON (dtw->rotation_status), GTK_UPDATE_ALWAYS);
+    g_signal_connect (G_OBJECT (dtw->rotation_status), "input", G_CALLBACK (sp_dtw_rotation_input), dtw);
+    g_signal_connect (G_OBJECT (dtw->rotation_status), "output", G_CALLBACK (sp_dtw_rotation_output), dtw);
+    g_object_set_data (G_OBJECT (dtw->rotation_status), "dtw", dtw->canvas);
+    g_signal_connect (G_OBJECT (dtw->rotation_status), "focus-in-event", G_CALLBACK (spinbutton_focus_in), dtw->rotation_status);
+    g_signal_connect (G_OBJECT (dtw->rotation_status), "key-press-event", G_CALLBACK (spinbutton_keypress), dtw->rotation_status);
+    dtw->rotation_update = g_signal_connect (G_OBJECT (dtw->rotation_status), "value_changed", G_CALLBACK (sp_desktop_widget_rotate_document), dtw);
+    dtw->rotation_update = g_signal_connect (G_OBJECT (dtw->rotation_status), "populate_popup", G_CALLBACK (sp_dtw_rotation_populate_popup), dtw);
+
+    auto rotstat = Glib::wrap(dtw->rotation_status);
+    rotstat->set_name("RotationStatus");
+    auto context_rotation = rotstat->get_style_context();
+    context_rotation->add_provider(css_provider_spinbutton, GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+
 
     // Cursor coordinates
     dtw->coord_status = gtk_grid_new();
@@ -619,12 +659,16 @@
 
     auto label_z = gtk_label_new(_("Z:"));
     gtk_widget_set_name(label_z, "ZLabel");
+    auto label_r = gtk_label_new(_("R:"));
+    gtk_widget_set_name(label_r, "RLabel");
     gtk_widget_set_halign(dtw->coord_status_x, GTK_ALIGN_END);
     gtk_widget_set_halign(dtw->coord_status_y, GTK_ALIGN_END);
     gtk_grid_attach(GTK_GRID(dtw->coord_status), dtw->coord_status_x, 2, 0, 1, 1);
     gtk_grid_attach(GTK_GRID(dtw->coord_status), dtw->coord_status_y, 2, 1, 1, 1);
     gtk_grid_attach(GTK_GRID(dtw->coord_status), label_z, 3, 0, 1, 2);
+    gtk_grid_attach(GTK_GRID(dtw->coord_status), label_r, 5, 0, 1, 2);
     gtk_grid_attach(GTK_GRID(dtw->coord_status), dtw->zoom_status, 4, 0, 1, 2);
+    gtk_grid_attach(GTK_GRID(dtw->coord_status), dtw->rotation_status, 6, 0, 1, 2);
 
     sp_set_font_size_smaller (dtw->coord_status);
 
@@ -692,6 +736,11 @@
         g_signal_handlers_disconnect_matched (G_OBJECT (dtw->zoom_status), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, dtw->zoom_status);
         g_signal_handlers_disconnect_by_func (G_OBJECT (dtw->zoom_status), (gpointer) G_CALLBACK (sp_dtw_zoom_value_changed), dtw);
         g_signal_handlers_disconnect_by_func (G_OBJECT (dtw->zoom_status), (gpointer) G_CALLBACK (sp_dtw_zoom_populate_popup), dtw);
+        g_signal_handlers_disconnect_by_func(G_OBJECT (dtw->rotation_status), (gpointer) G_CALLBACK(sp_dtw_rotation_input), dtw);
+        g_signal_handlers_disconnect_by_func(G_OBJECT (dtw->rotation_status), (gpointer) G_CALLBACK(sp_dtw_rotation_output), dtw);
+        g_signal_handlers_disconnect_matched (G_OBJECT (dtw->rotation_status), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, dtw->rotation_status);
+        g_signal_handlers_disconnect_by_func (G_OBJECT (dtw->rotation_status), (gpointer) G_CALLBACK (sp_desktop_widget_rotate_document), dtw);
+        g_signal_handlers_disconnect_by_func (G_OBJECT (dtw->rotation_status), (gpointer) G_CALLBACK (sp_dtw_rotation_populate_popup), dtw);
         g_signal_handlers_disconnect_by_func (G_OBJECT (dtw->canvas), (gpointer) G_CALLBACK (sp_desktop_widget_event), dtw);
         g_signal_handlers_disconnect_by_func (G_OBJECT (dtw->canvas_tbl), (gpointer) G_CALLBACK (canvas_tbl_size_allocate), dtw);
 
@@ -1423,7 +1472,7 @@
     } else {
         gtk_widget_show_all (dtw->menubar);
     }
-
+    
     if (!prefs->getBool(pref_root + "commands/state", true)) {
         gtk_widget_hide (dtw->commands_toolbox);
     } else {
@@ -1629,10 +1678,11 @@
     dtw->menubar = sp_ui_main_menubar (dtw->desktop);
     gtk_widget_set_name(dtw->menubar, "MenuBar");
     gtk_widget_show_all (dtw->menubar);
-    gtk_box_pack_start (GTK_BOX (dtw->vbox), dtw->menubar, FALSE, FALSE, 0);
-
+    SPNamedView *nv = dtw->desktop->namedview;
+    gtk_box_pack_start (GTK_BOX (dtw->vbox), dtw->menubar, TRUE, TRUE, 0);
     dtw->layoutWidgets();
-
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON (dtw->rotation_status), namedview->document_rotation);
+    sp_namedview_set_document_rotation(namedview);
     std::vector<GtkWidget *> toolboxes;
     toolboxes.push_back(dtw->tool_toolbox);
     toolboxes.push_back(dtw->aux_toolbox);
@@ -1672,6 +1722,8 @@
 void SPDesktopWidget::namedviewModified(SPObject *obj, guint flags)
 {
     SPNamedView *nv=SP_NAMEDVIEW(obj);
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(this->rotation_status), desktop->namedview->document_rotation);
+    sp_namedview_set_document_rotation(nv);
 
     if (flags & SP_OBJECT_MODIFIED_FLAG) {
         this->dt2r = 1. / nv->display_units->factor;
@@ -1723,6 +1775,18 @@
 }
 
 static void
+sp_desktop_widget_rotate_document(GtkSpinButton *spin, SPDesktopWidget *dtw)
+{
+    SPNamedView *nv = dtw->desktop->namedview;
+    double value = gtk_spin_button_get_value (spin);
+    if (!dtw->desktop->getDocument()->getRoot()->rotated && value != nv->document_rotation) {
+        sp_repr_set_svg_double(nv->getRepr(), "inkscape:document-rotation", value);
+    }
+    spinbutton_defocus (GTK_WIDGET(spin));
+}
+
+
+static void
 sp_desktop_widget_adjustment_value_changed (GtkAdjustment */*adj*/, SPDesktopWidget *dtw)
 {
     if (dtw->update)
@@ -1802,6 +1866,34 @@
     return TRUE;
 }
 
+static gint
+sp_dtw_rotation_input (GtkSpinButton *spin, gdouble *new_val, gpointer /*data*/)
+{
+    gdouble new_scrolled = gtk_spin_button_get_value (spin);
+    const gchar *b = gtk_entry_get_text (GTK_ENTRY (spin));
+    gdouble new_typed = atof (b);
+
+    if (new_scrolled == new_typed) { // the new value is set by scrolling
+        *new_val = new_scrolled;
+    } else { // the new value is typed in
+        *new_val = new_typed;
+    }
+
+    return TRUE;
+}
+
+static bool
+sp_dtw_rotation_output (GtkSpinButton *spin, gpointer /*data*/)
+{
+    gchar b[64];
+    double val = gtk_spin_button_get_value (spin);
+    std::ostringstream s;
+    s.imbue(std::locale(""));;
+    s << std::fixed << std::setprecision(2) << val << "º";
+    gtk_entry_set_text (GTK_ENTRY (spin), s.str().c_str());
+    return TRUE;
+}
+
 static void
 sp_dtw_zoom_value_changed (GtkSpinButton *spin, gpointer data)
 {
@@ -1940,6 +2032,110 @@
     gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
 }
 
+
+static void
+sp_dtw_rotation_populate_popup (GtkEntry */*entry*/, GtkMenu *menu, gpointer data)
+{
+    GList *children, *iter;
+    GtkWidget *item;
+    SPDesktopWidget *dtw = static_cast<SPDesktopWidget*>(data);
+    children = gtk_container_get_children (GTK_CONTAINER (menu));
+    for ( iter = children ; iter ; iter = g_list_next (iter)) {
+        gtk_container_remove (GTK_CONTAINER (menu), GTK_WIDGET (iter->data));
+    }
+    g_list_free (children);
+
+    item = gtk_menu_item_new_with_label ("-180º");
+    g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_rotate_minus_180), dtw);
+    gtk_widget_show (item);
+    gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
+    
+    item = gtk_menu_item_new_with_label ("-135º");
+    g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_rotate_minus_135), dtw);
+    gtk_widget_show (item);
+    gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
+    
+    item = gtk_menu_item_new_with_label ("-90º");
+    g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_rotate_minus_90), dtw);
+    gtk_widget_show (item);
+    gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
+    
+    item = gtk_menu_item_new_with_label ("-45º");
+    g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_rotate_minus_45), dtw);
+    gtk_widget_show (item);
+    gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
+    
+    item = gtk_menu_item_new_with_label ("0º");
+    g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_rotate_0), dtw);
+    gtk_widget_show (item);
+    gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
+    
+    item = gtk_menu_item_new_with_label ("45º");
+    g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_rotate_45), dtw);
+    gtk_widget_show (item);
+    gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
+    
+    
+    item = gtk_menu_item_new_with_label ("90º");
+    g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_rotate_90), dtw);
+    gtk_widget_show (item);
+    gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
+    
+    
+    item = gtk_menu_item_new_with_label ("135º");
+    g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_rotate_135), dtw);
+    gtk_widget_show (item);
+    gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
+}
+
+static void
+sp_dtw_rotate_minus_180 (GtkMenuItem */*item*/, SPDesktopWidget * data)
+{
+       gtk_spin_button_set_value (GTK_SPIN_BUTTON((data)->rotation_status),-180);
+}
+
+static void
+sp_dtw_rotate_minus_135 (GtkMenuItem */*item*/, SPDesktopWidget * data)
+{
+       gtk_spin_button_set_value (GTK_SPIN_BUTTON((data)->rotation_status), -135);
+}
+
+static void
+sp_dtw_rotate_minus_90 (GtkMenuItem */*item*/, SPDesktopWidget * data)
+{
+       gtk_spin_button_set_value (GTK_SPIN_BUTTON((data)->rotation_status), -90);
+}
+
+static void
+sp_dtw_rotate_minus_45 (GtkMenuItem */*item*/, SPDesktopWidget * data)
+{
+       gtk_spin_button_set_value (GTK_SPIN_BUTTON((data)->rotation_status), -45);
+}
+
+static void
+sp_dtw_rotate_0 (GtkMenuItem */*item*/,SPDesktopWidget * data)
+{
+       gtk_spin_button_set_value (GTK_SPIN_BUTTON((data)->rotation_status), 0);
+}
+
+static void
+sp_dtw_rotate_45 (GtkMenuItem */*item*/, SPDesktopWidget * data)
+{
+       gtk_spin_button_set_value (GTK_SPIN_BUTTON((data)->rotation_status), 45);
+}
+
+static void
+sp_dtw_rotate_90 (GtkMenuItem */*item*/, SPDesktopWidget * data)
+{
+       gtk_spin_button_set_value (GTK_SPIN_BUTTON((data)->rotation_status), 90);
+}
+
+static void
+sp_dtw_rotate_135 (GtkMenuItem */*item*/, SPDesktopWidget * data)
+{
+       gtk_spin_button_set_value (GTK_SPIN_BUTTON((data)->rotation_status), 135);
+}
+
 static void
 sp_dtw_zoom_menu_handler (SPDesktop *dt, gdouble factor)
 {
 
=== modified file 'src/widgets/desktop-widget.h'
--- src/widgets/desktop-widget.h	2015-12-09 15:13:54 +0000
+++ src/widgets/desktop-widget.h	2017-01-24 17:53:20 +0000
@@ -78,7 +78,7 @@
 
     GtkWidget *hbox;
 
-    GtkWidget *menubar, *statusbar;
+    GtkWidget *menubar, *statusbar, *rotatebar;
 
     Inkscape::UI::Dialogs::SwatchesPanel *panels;
 
@@ -97,7 +97,9 @@
     GtkWidget *select_status;
     GtkWidget *select_status_eventbox;
     GtkWidget *zoom_status;
+    GtkWidget *rotation_status;
     gulong zoom_update;
+    gulong rotation_update;
 
     Inkscape::UI::Widget::Dock *dock;
 
 
=== modified file 'src/widgets/widget-sizes.h'
--- src/widgets/widget-sizes.h	2014-03-27 01:33:44 +0000
+++ src/widgets/widget-sizes.h	2017-01-24 17:53:20 +0000
@@ -28,6 +28,7 @@
 #define STATUS_BAR_FONT_SIZE 10000
 
 #define STATUS_ZOOM_WIDTH 57
+#define STATUS_ROTATION_WIDTH 57
 
 #define SELECTED_STYLE_SB_WIDTH 48
 #define SELECTED_STYLE_WIDTH 190