From b27e8dea731293c4f8a02aef587f93d2f59d7486 Mon Sep 17 00:00:00 2001
From: Davide Punzo <punzodavide@hotmail.it>
Date: Thu, 25 Apr 2024 10:54:32 +0200
Subject: [PATCH] ENH: Example how to use dynamic properties and stylesheets

---
 .../ctkDICOMVisualBrowserMain.cpp             | 45 +++++++++++++++++++
 .../Widgets/ctkDICOMVisualBrowserWidget.cpp   | 13 ++++++
 2 files changed, 58 insertions(+)

diff --git a/Applications/ctkDICOMVisualBrowser/ctkDICOMVisualBrowserMain.cpp b/Applications/ctkDICOMVisualBrowser/ctkDICOMVisualBrowserMain.cpp
index 419f10fda2..aaf7a26610 100644
--- a/Applications/ctkDICOMVisualBrowser/ctkDICOMVisualBrowserMain.cpp
+++ b/Applications/ctkDICOMVisualBrowser/ctkDICOMVisualBrowserMain.cpp
@@ -118,5 +118,50 @@ int main(int argc, char** argv)
   mainWidget.show();
   DICOMVisualBrowser.onShowPatients();
 
+  // CTK should define these styles in files like ctkLightStyle.qss
+  QString barebonesLightStyleExample =
+    R""""(
+      ctkSearchBox[warning=true]
+      {
+        background-color: #9c9c27;
+      }
+
+      ctkCheckableComboBox[warning=true]
+      {
+        background-color: #9c9c27;
+      }
+
+      ctkComboBox[warning=true]
+      {
+        background-color: #9c9c27;
+      }
+    )"""";
+
+  QString barebonesDarkStyleExample =
+    R""""(
+      QWidget
+      {
+        background-color: #333333;
+        color: #ffffff;
+      }
+
+      ctkSearchBox[warning=true]
+      {
+        background-color: #9c9c27;
+      }
+
+      ctkCheckableComboBox[warning=true]
+      {
+        background-color: #9c9c27;
+      }
+
+      ctkComboBox[warning=true]
+      {
+        background-color: #9c9c27;
+      }
+    )"""";
+
+  app.setStyleSheet(barebonesLightStyleExample);
+
   return app.exec();
 }
diff --git a/Libs/DICOM/Widgets/ctkDICOMVisualBrowserWidget.cpp b/Libs/DICOM/Widgets/ctkDICOMVisualBrowserWidget.cpp
index 3022e0e461..204302095c 100644
--- a/Libs/DICOM/Widgets/ctkDICOMVisualBrowserWidget.cpp
+++ b/Libs/DICOM/Widgets/ctkDICOMVisualBrowserWidget.cpp
@@ -889,6 +889,7 @@ void ctkDICOMVisualBrowserWidgetPrivate::setBackgroundColorToWidget(QColor color
     return;
   }
 
+  // This will be applied if no styleSheet has been set on the widget
   QPalette pal = widget->palette();
   QComboBox* comboBox = qobject_cast<QComboBox*>(widget);
   if (comboBox)
@@ -900,6 +901,18 @@ void ctkDICOMVisualBrowserWidgetPrivate::setBackgroundColorToWidget(QColor color
     pal.setColor(widget->backgroundRole(), color);
   }
   widget->setPalette(pal);
+
+  // If the widget has a styleSheet, the styleSheet will overrride the palette
+  if (ctkDICOMVisualBrowserWidgetWarningColor == color)
+  {
+    widget->setProperty("warning", true);
+  }
+  else
+  {
+    widget->setProperty("warning", false);
+  }
+  widget->style()->unpolish(widget);
+  widget->style()->polish(widget);
 }
 
 //----------------------------------------------------------------------------