Status message utility function, overlay frame utility function

src/blackgui/overlaymessages.cpp

@@ -383,6 +383,8 @@ namespace BlackGui
         }
 
         this->setModeToHTMLMessage();
+        ui->te_HTMLMessage->setTextColor(QColor(Qt::white)); // hardcoded color
+        ui->te_HTMLMessage->setReadOnly(true);
         ui->te_HTMLMessage->setText(htmlMessage);
         this->display(timeOutMs);
     }

src/blackgui/overlaymessagesframe.h

@@ -156,6 +156,20 @@ namespace BlackGui
             WIDGET::repaint();
         }
 
+        //! \copydoc BlackGui::COverlayMessages::showOverlayMessages
+        void showOverlayHTMLMessageOrMessages(const BlackMisc::CStatusMessageList &messages, bool appendOldMessages = false, int timeOutMs = -1)
+        {
+            if (messages.isEmpty()) { return; }
+            if (messages.size() == 1)
+            {
+                this->showOverlayHTMLMessage(messages.front(), timeOutMs);
+            }
+            else
+            {
+                this->showOverlayMessages(messages, appendOldMessages, timeOutMs);
+            }
+        }
+
         //! \copydoc BlackGui::COverlayMessages::sortOverlayMessages
         void sortOverlayMessages(const BlackMisc::CPropertyIndex &property, Qt::SortOrder order)
         {

src/blackmisc/statusmessagelist.cpp

@@ -87,6 +87,11 @@ namespace BlackMisc
         }
     }
 
+    void CStatusMessageList::addValidationCategory()
+    {
+        this->addCategory(CLogCategory::validation());
+    }
+
     void CStatusMessageList::addCategories(const CLogCategoryList &categories)
     {
         for (auto &msg : *this)

src/blackmisc/statusmessagelist.h

@@ -78,6 +78,9 @@ namespace BlackMisc
         //! Add a category to all messages in the list
         void addCategory(const CLogCategory &category);
 
+        //! Validation category
+        void addValidationCategory();
+
         //! Add some categories to all messages in the list
         void addCategories(const CLogCategoryList &categories);