histogram: implemented color management

app/widget/viewer/viewer.cpp

@@ -68,6 +68,7 @@ ViewerWidget::ViewerWidget(QWidget *parent) :
   connect(main_widget, &ViewerGLWidget::LoadedBuffer, this, &ViewerWidget::LoadedBuffer);
   connect(main_widget, &ViewerGLWidget::LoadedTexture, this, &ViewerWidget::LoadedTexture);
   connect(main_widget, &ViewerGLWidget::DrewManagedTexture, this, &ViewerWidget::DrewManagedTexture);
+  connect(main_widget, &ViewerGLWidget::ColorProcessorChanged, this, &ViewerWidget::ColorProcessorChanged);
   connect(sizer_, &ViewerSizer::RequestMatrix, main_widget, &ViewerGLWidget::SetMatrix);
   sizer_->SetWidget(main_widget);
   gl_widgets_.append(main_widget);

app/widget/viewer/viewer.h

@@ -159,6 +159,11 @@ signals:
    */
   void RequestScopePanel(ScopePanel::Type type);
 
+  /**
+   * @brief Wrapper for ViewerGLWidget::ColorProcessorChanged()
+   */
+  void ColorProcessorChanged(ColorProcessorPtr processor);
+
 protected:
   virtual void TimebaseChangedEvent(const rational &) override;
   virtual void TimeChangedEvent(const int64_t &) override;

app/widget/viewer/viewerglwidget.cpp

@@ -489,6 +489,9 @@ void ViewerGLWidget::SetupColorProcessor()
   } else {
     color_service_ = nullptr;
   }
+
+  qDebug() << "Emitting" << std::static_pointer_cast<ColorProcessor>(color_service_).get();
+  emit ColorProcessorChanged(std::static_pointer_cast<ColorProcessor>(color_service_));
 }
 
 void ViewerGLWidget::ContextCleanup()

app/widget/viewer/viewerglwidget.h

@@ -189,6 +189,11 @@ signals:
    */
   void DrewManagedTexture(OpenGLTexture* texture);
 
+  /**
+   * @brief Emitted when the color processor changes
+   */
+  void ColorProcessorChanged(ColorProcessorPtr processor);
+
 protected:
   /**
    * @brief Override the mouse press event simply to emit the DragStarted() signal