Flat field: Show auto calculated clip control value in ui

rtgui/flatfield.cc

@@ -403,3 +403,21 @@ void FlatField::setShortcutPath(const Glib::ustring& path)
 
     } catch (Glib::Error&) {}
 }
+
+void FlatField::flatFieldAutoClipValueChanged(int n)
+{
+    struct Data {
+        FlatField *me;
+        int n;
+    };
+    const auto func = [](gpointer data) -> gboolean {
+        Data *d = static_cast<Data *>(data);
+        FlatField *me = d->me;
+        me->disableListener();
+        me->flatFieldClipControl->setValue (d->n);
+        me->enableListener();
+        return FALSE;
+    };
+
+    idle_register.add(func, new Data { this, n });
+}

rtgui/flatfield.h

@@ -35,7 +35,7 @@ public:
     // add other info here
 };
 
-class FlatField : public ToolParamBlock, public AdjusterListener, public FoldableToolPanel
+class FlatField : public ToolParamBlock, public AdjusterListener, public FoldableToolPanel, public rtengine::FlatFieldAutoClipListener
 {
 
 protected:
@@ -58,6 +58,7 @@ protected:
     bool b_filter_asCurrent;
     bool israw;
 
+    IdleRegister idle_register;
 public:
 
     FlatField ();
@@ -80,6 +81,7 @@ public:
     {
         ffp = p;
     };
+    void flatFieldAutoClipValueChanged(int n = 0);
 };
 
 #endif

rtgui/toolpanelcoord.cc

@@ -521,6 +521,7 @@ void ToolPanelCoordinator::initImage (rtengine::StagedImageProcessor* ipc_, bool
         ipc->setAutoCamListener (colorappearance);
         ipc->setAutoBWListener (blackwhite);
         ipc->setFrameCountListener (bayerprocess);
+        ipc->setFlatFieldAutoClipListener (flatfield);
         ipc->setAutoWBListener (whitebalance);
         ipc->setAutoColorTonListener (colortoning);
         ipc->setAutoChromaListener (dirpyrdenoise);