X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=samples%2FSampleOutputObserver%2FbbtkSampleOutputObserver.cxx;fp=samples%2FSampleOutputObserver%2FbbtkSampleOutputObserver.cxx;h=71ccbd8975b216473a18b3be332ae95993edfb84;hb=e86c3848d48592893231e57fbf513d5d666be0ca;hp=67c40751fd24d000d21ef9be7e7214bcefa1a51c;hpb=a12deb460d12294cc8f3ef4e489b5b28640d0178;p=bbtk.git

diff --git a/samples/SampleOutputObserver/bbtkSampleOutputObserver.cxx b/samples/SampleOutputObserver/bbtkSampleOutputObserver.cxx
index 67c4075..71ccbd8 100644
--- a/samples/SampleOutputObserver/bbtkSampleOutputObserver.cxx
+++ b/samples/SampleOutputObserver/bbtkSampleOutputObserver.cxx
@@ -6,12 +6,15 @@
 //=========================================================================
 
 //=========================================================================
-void CallbackFunction ( bbtk::BlackBox::Pointer p, 
-			const std::string& o, 
-			bbtk::IOStatus s)
+// FIRST EXAMPLE USING A FUNCTION AS CALLBACK
+void CallbackFunction ( bbtk::BlackBox::Pointer p,  // The black box which changed 
+			const std::string& o, // The output which changed
+			bbtk::IOStatus s) // The new status of the output
 {
   std::cout << "== Callback function called with p="<<p->bbGetName()
 	    <<" o="<<o<<" s="<<bbtk::GetIOStatusString(s)<<std::endl;
+
+  // Cast the black box pointer into Slider pointer
   bbwx::Slider::Pointer slider = boost::dynamic_pointer_cast<bbwx::Slider>(p);
   if (slider)
     {
@@ -30,6 +33,7 @@ void SliderCallback()
     {
       bbwx::Slider::Pointer slider = bbwx::Slider::New("slider");
       slider->bbSetInputWinDialog(true);  // mandatory
+      // Add the observer 
       slider->bbAddOutputObserver( "Out", &CallbackFunction );
       slider->bbExecute();
     }
@@ -42,6 +46,7 @@ void SliderCallback()
 
 
 //=========================================================================
+// SECOND EXAMPLE : MEMBER METHOD CALLED WHEN SLIDER IS RELEASED
 class ClassWithTwoSliders
 {
 public:
@@ -66,6 +71,9 @@ ClassWithTwoSliders::ClassWithTwoSliders()
   try
     {
       mSlider1 = bbwx::Slider::New("slider1");
+      // Add the observer method
+      // As it is not a FREEHAND function we must use the macro 
+      // BBTK_MAKE_OUTPUT_OBSERVER which takes the object and the method to call
       mSlider1->bbAddOutputObserver("Out", 
 				    BBTK_MAKE_OUTPUT_OBSERVER
 				    (this,