diff --git a/src/Mod/Arch/ArchWall.py b/src/Mod/Arch/ArchWall.py
index 316ea0bba6..d03a91241b 100644
--- a/src/Mod/Arch/ArchWall.py
+++ b/src/Mod/Arch/ArchWall.py
@@ -98,17 +98,14 @@ class _CommandWall:
             import DraftTrackers
             self.points = []
             self.tracker = DraftTrackers.boxTracker()
-            FreeCADGui.Snapper.getPoint(callback=self.getPoint)
+            FreeCADGui.Snapper.getPoint(callback=self.getPoint,extradlg=TaskArchWall())
 
-    def getPoint(self,point):
+    def getPoint(self,point,obj):
         "this function is called by the snapper when it has a 3D point"
-        pos = FreeCADGui.ActiveDocument.ActiveView.getCursorPos()
-        exi = FreeCADGui.ActiveDocument.ActiveView.getObjectInfo(pos)
-        if exi:
-            exi = FreeCAD.ActiveDocument.getObject(exi['Object'])
-            if Draft.getType(exi) == "Wall":
-                if not exi in self.existing:
-                    self.existing.append(exi)
+        if obj:
+            if Draft.getType(obj) == "Wall":
+                if not obj in self.existing:
+                    self.existing.append(obj)
         if point == None:
             self.tracker.finalize()
             return
@@ -119,6 +116,8 @@ class _CommandWall:
         elif len(self.points) == 2:
             import Part
             l = Part.Line(self.points[0],self.points[1])
+            self.tracker.finalize()
+            FreeCAD.ActiveDocument.openTransaction("Wall")
             if not self.existing:
                 s = FreeCAD.ActiveDocument.addObject("Sketcher::SketchObject","WallTrace")
                 s.addGeometry(l)
@@ -126,7 +125,7 @@ class _CommandWall:
             else:
                 w = joinWalls(self.existing)
                 w.Base.addGeometry(l)
-            self.tracker.finalize()
+            FreeCAD.ActiveDocument.commitTransaction()
             FreeCAD.ActiveDocument.recompute()
 
     def update(self,point):
@@ -182,6 +181,8 @@ class _Wall(ArchComponent.Component):
                 dvec = fcvec.neg(dvec)
                 w2 = fcgeo.offsetWire(wire,dvec)
                 sh = fcgeo.bind(w1,w2)
+            # fixing self-intersections
+            sh.fix(0.1,0,1)
             if height:
                 norm = Vector(normal).multiply(height)
                 sh = sh.extrude(norm)
@@ -258,4 +259,9 @@ class _ViewProviderWall(ArchComponent.ViewProviderComponent):
     def getIcon(self):          
         return ":/icons/Arch_Wall_Tree.svg"
 
+class TaskArchWall:
+    def __init__(self):
+        from PyQt4 import QtGui
+        self.form = QtGui.QWidget()
+    
 FreeCADGui.addCommand('Arch_Wall',_CommandWall())
diff --git a/src/Mod/Draft/DraftGui.py b/src/Mod/Draft/DraftGui.py
index d6e2159144..8b223c2fa0 100644
--- a/src/Mod/Draft/DraftGui.py
+++ b/src/Mod/Draft/DraftGui.py
@@ -136,7 +136,7 @@ class DraftLineEdit(QtGui.QLineEdit):
             QtGui.QLineEdit.keyPressEvent(self, event)
 
 class DraftTaskPanel:
-    def __init__(self,widget):
+    def __init__(self,widget,extradlg=None):
         self.form = widget
     def getStandardButtons(self):
         return int(QtGui.QDialogButtonBox.Cancel)
@@ -463,7 +463,7 @@ class DraftToolBar:
 # Interface modes
 #---------------------------------------------------------------------------
 
-    def taskUi(self,title):
+    def taskUi(self,title,extradlg=None):
         if self.taskmode:
             self.isTaskOn = True
             todo.delay(FreeCADGui.Control.closeDialog,None)
@@ -472,7 +472,7 @@ class DraftToolBar:
             self.layout = QtGui.QVBoxLayout(self.baseWidget)
             self.setupToolBar(task=True)
             self.retranslateUi(self.baseWidget)
-            self.panel = DraftTaskPanel(self.baseWidget)
+            self.panel = DraftTaskPanel(self.baseWidget,extradlg)
             todo.delay(FreeCADGui.Control.showDialog,self.panel)
         else:
             self.setTitle(title)  
@@ -510,9 +510,9 @@ class DraftToolBar:
         self.labelx.setText(translate("draft", "Center X"))
         self.continueCmd.show()
 
-    def pointUi(self,title=translate("draft","Point"),cancel=None):
+    def pointUi(self,title=translate("draft","Point"),cancel=None,extradlg=None):
         if cancel: self.cancel = cancel
-        self.taskUi(title)
+        self.taskUi(title,extradlg)
         self.xValue.setEnabled(True)
         self.yValue.setEnabled(True)
         self.labelx.setText(translate("draft", "X"))
@@ -536,6 +536,7 @@ class DraftToolBar:
 
     def offUi(self):
         todo.delay(FreeCADGui.Control.closeDialog,None)
+        self.cancel = None
         if self.taskmode:
             self.isTaskOn = False
             self.baseWidget = QtGui.QWidget()
diff --git a/src/Mod/Draft/DraftSnap.py b/src/Mod/Draft/DraftSnap.py
index 87b8f45f6b..7742926a49 100644
--- a/src/Mod/Draft/DraftSnap.py
+++ b/src/Mod/Draft/DraftSnap.py
@@ -68,6 +68,7 @@ class Snapper:
         self.grid = None
         self.constrainLine = None
         self.trackLine = None
+        self.lastSnappedObject = None
         
         # the snapmarker has "dot","circle" and "square" available styles
         self.mk = {'passive':'circle',
@@ -175,6 +176,8 @@ class Snapper:
             obj = FreeCAD.ActiveDocument.getObject(info['Object'])
             if not obj:
                 return cstr(point)
+
+            self.lastSnappedObject = obj
                 
             if hasattr(obj.ViewObject,"Selectable"):
                 if not obj.ViewObject.Selectable:
@@ -531,6 +534,7 @@ class Snapper:
             for v in self.views:
                 v.unsetCursor()
             self.views = []
+            self.cursorMode = None
         else:
             if mode != self.cursorMode:
                 if not self.views:
@@ -559,11 +563,9 @@ class Snapper:
             self.extLine.off()
         if self.grid:
             self.grid.off()
-        if self.constrainLine:
-            self.constrainLine.off()
+        self.unconstrain()
         self.radius = 0
         self.setCursor()
-        self.cursorMode = None
 
     def constrain(self,point,basepoint=None,axis=None):
         '''constrain(point,basepoint=None,axis=None: Returns a
@@ -627,11 +629,12 @@ class Snapper:
         if self.constrainLine:
             self.constrainLine.off()
 
-    def getPoint(self,last=None,callback=None,movecallback=None):
+    def getPoint(self,last=None,callback=None,movecallback=None,extradlg=None):
         
-        """getPoint([last],[callback],[movecallback]) : gets a 3D point from the screen. You
-        can provide an existing point, in that case additional snap options and a tracker
-        are available. You can also pass a function as callback, which will get called
+        """getPoint([last],[callback],[movecallback],[extradlg]) : gets a 3D point
+        from the screen. You can provide an existing point, in that case additional
+        snap options and a tracker are available.
+        You can also pass a function as callback, which will get called
         with the resulting point as argument, when a point is clicked, and optionally
         another callback which gets called when the mouse is moved.
 
@@ -642,7 +645,12 @@ class Snapper:
         def cb(point):
             if point:
                 print "got a 3D point: ",point
-        FreeCADGui.Snapper.getPoint(callback=cb)"""
+        FreeCADGui.Snapper.getPoint(callback=cb)
+
+        If the callback function accepts more than one argument, it will also receive
+        the last snapped object.Finally, a task dialog can be passed as extradlg."""
+
+        import inspect
         
         self.pt = None
         self.ui = FreeCADGui.draftToolBar
@@ -673,12 +681,16 @@ class Snapper:
                 if event.getState() == coin.SoMouseButtonEvent.DOWN:
                     self.view.removeEventCallbackPivy(coin.SoMouseButtonEvent.getClassTypeId(),self.callbackClick)
                     self.view.removeEventCallbackPivy(coin.SoLocation2Event.getClassTypeId(),self.callbackMove)
+                    obj = FreeCADGui.Snapper.lastSnappedObject
                     FreeCADGui.Snapper.off()
                     self.ui.offUi()
                     if self.trackLine:
                         self.trackLine.off()
                     if callback:
-                        callback(self.pt)
+                        if len(inspect.getargspec(callback).args) > 2:
+                            callback(self.pt,obj)
+                        else:
+                            callback(self.pt)
                     self.pt = None
 
         def cancel():
@@ -692,7 +704,7 @@ class Snapper:
                 callback(None)
             
         # adding 2 callback functions
-        self.ui.pointUi(cancel=cancel)
+        self.ui.pointUi(cancel=cancel,extradlg=extradlg)
         self.callbackClick = self.view.addEventCallbackPivy(coin.SoMouseButtonEvent.getClassTypeId(),click)
         self.callbackMove = self.view.addEventCallbackPivy(coin.SoLocation2Event.getClassTypeId(),move)            
 
diff --git a/src/Mod/Draft/DraftTools.py b/src/Mod/Draft/DraftTools.py
index 65bbd96c48..a74f4d733e 100644
--- a/src/Mod/Draft/DraftTools.py
+++ b/src/Mod/Draft/DraftTools.py
@@ -476,7 +476,7 @@ class Line(Creator):
             if self.isWire:
                 msg(translate("draft", "Pick next point, or (F)inish or (C)lose:\n"))
         else:
-            currentshape = self.obj.Shape
+            currentshape = self.obj.Shape.copy()
             last = self.node[len(self.node)-2]
             newseg = Part.Line(last,point).toShape()
             newshape=currentshape.fuse(newseg)
diff --git a/src/Mod/Draft/draftlibs/fcgeo.py b/src/Mod/Draft/draftlibs/fcgeo.py
index 275f9a0dee..a2844af079 100755
--- a/src/Mod/Draft/draftlibs/fcgeo.py
+++ b/src/Mod/Draft/draftlibs/fcgeo.py
@@ -959,9 +959,19 @@ def getTangent(edge,frompoint=None):
 def bind(w1,w2):
         '''bind(wire1,wire2): binds 2 wires by their endpoints and
         returns a face'''
-        w3 = Part.Line(w1.Vertexes[0].Point,w2.Vertexes[0].Point).toShape()
-        w4 = Part.Line(w1.Vertexes[-1].Point,w2.Vertexes[-1].Point).toShape()
-        return Part.Face(Part.Wire(w1.Edges+[w3]+w2.Edges+[w4]))
+        if w1.isClosed() and w2.isClosed():
+                d1 = w1.BoundBox.DiagonalLength
+                d2 = w2.BoundBox.DiagonalLength
+                if d1 > d2:
+                        #w2.reverse()
+                        return Part.Face([w1,w2])
+                else:
+                        #w1.reverse()
+                        return Part.Face([w2,w1])
+        else:
+                w3 = Part.Line(w1.Vertexes[0].Point,w2.Vertexes[0].Point).toShape()
+                w4 = Part.Line(w1.Vertexes[-1].Point,w2.Vertexes[-1].Point).toShape()
+                return Part.Face(Part.Wire(w1.Edges+[w3]+w2.Edges+[w4]))
 
 def cleanFaces(shape):
         "removes inner edges from coplanar faces"