//=========================================================================
//=========================================================================
-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;
+ <<" o="<<o<<" s="<<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)
{
{
bbwx::Slider::Pointer slider = bbwx::Slider::New("slider");
slider->bbSetInputWinDialog(true); // mandatory
+ // Add the observer
slider->bbAddOutputObserver( "Out", &CallbackFunction );
slider->bbExecute();
}
//=========================================================================
+// SECOND EXAMPLE : MEMBER METHOD CALLED WHEN SLIDER IS RELEASED
class ClassWithTwoSliders
{
public:
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,
bbtk::IOStatus s )
{
std::cout << "== 'OnSlider' called with p="<<p->bbGetName()
- <<" o="<<o<<" s="<<bbtk::GetIOStatusString(s)<<std::endl;
+ <<" o="<<o<<" s="<<s/*bbtk::GetIOStatusString(s)*/<<std::endl;
if ((p==mSlider1) && (o=="Out"))
{