remove redundant methods, implement assignment operator for widget

modules/viz/include/opencv2/viz/types.hpp

@@ -119,6 +119,9 @@ namespace temp_viz
     public:
         Widget();
         Widget(const Widget &other);
+        Widget& operator =(const Widget &other);
+        
+        void copyTo(Widget &dst);
         
         void setColor(const Color &color);
         void setPose(const Affine3f &pose);
@@ -134,6 +137,6 @@ namespace temp_viz
     class LineWidget : public Widget
     {
     public:
-        LineWidget(const Point3f &pt1, const Point3f &pt2, const Color &color);
+        LineWidget(const Point3f &pt1, const Point3f &pt2, const Color &color = Color(255,255,255));
     };
 }

modules/viz/src/types.cpp

@@ -75,17 +75,6 @@ public:
         return Affine3f(matrix_cv);
     }
     
-    void setActorMapperInput(const vtkSmartPointer<vtkDataSet> &data)
-    {   
-        vtkSmartPointer<vtkDataSetMapper> mapper = reinterpret_cast<vtkDataSetMapper*>(actor->GetMapper ());
-        if (mapper == 0)
-        {
-            mapper = vtkSmartPointer<vtkDataSetMapper>::New ();
-            actor->SetMapper(mapper);
-        }
-        mapper->SetInput (data);
-    }
-    
 protected:
     
     vtkSmartPointer<vtkMatrix4x4> convertToVtkMatrix (const cv::Matx44f &m) const
@@ -115,6 +104,18 @@ temp_viz::Widget::Widget(const Widget &other)
     impl_ = other.impl_;
 }
 
+temp_viz::Widget& temp_viz::Widget::operator =(const Widget &other)
+{
+    if (this != &other)
+        impl_ = other.impl_;
+    return *this;
+}
+
+void temp_viz::Widget::copyTo(Widget &dst)
+{
+    // TODO Deep copy the data if there is any
+}
+
 void temp_viz::Widget::setColor(const Color &color)
 {
     impl_->setColor(color);

modules/viz/test/test_viz3d.cpp

@@ -97,6 +97,8 @@ TEST(Viz_viz3d, accuracy)
     temp_viz::LineWidget lw(cv::Point3f(0.0,0.0,0.0), cv::Point3f(1.0,1.0,1.0), temp_viz::Color(0,255,0));
     v.showWidget("line", lw);
     
+    temp_viz::LineWidget lw2 = lw;
+    
     while(!v.wasStopped())
     {
         // Creating new point cloud with id cloud1
@@ -112,7 +114,7 @@ TEST(Viz_viz3d, accuracy)
         v.setShapePose("circle1", cloudPosition);
         v.setShapePose("sphere1", cloudPosition);
         v.setShapePose("arrow1", cloudPosition);
-        lw.setColor(temp_viz::Color(col_blue, col_green, col_red));
+        lw2.setColor(temp_viz::Color(col_blue, col_green, col_red));
         
         angle_x += 0.1f;
         angle_y -= 0.1f;