SYNERGY-1006 - Added template mode for icons on Big Sur and higher

src/gui/src/MainWindow.cpp

@@ -343,10 +343,20 @@ void MainWindow::setIcon(qSynergyState state) const
     QIcon icon;
 
 #ifdef Q_OS_MAC
-    if (isOSXUseDarkIcons())
+    IconsTheme theme = getOSXIconsTheme();
-        icon.addFile(synergyDarkIconFiles[state]);
+    switch(getOSXIconsTheme()) {
-    else
+        case IconsTheme::ICONS_DARK:
-        icon.addFile(synergyLightIconFiles[state]);
+            icon.addFile(synergyDarkIconFiles[state]);
+            break;
+        case IconsTheme::ICONS_LIGHT:
+            icon.addFile(synergyLightIconFiles[state]);
+            break;
+        case IconsTheme::ICONS_TEMPLATE:
+        default:
+            icon.addFile(synergyDarkIconFiles[state]);
+            icon.setIsMask(true);
+            break;
+    }
 #else
     icon.addFile(synergyDefaultIconFiles[state]);
 #endif

src/gui/src/OSXHelpers.h

@@ -19,7 +19,13 @@
 
 #define OSXHELPERS__H
 
+enum IconsTheme {
+    ICONS_DARK,
+    ICONS_LIGHT,
+    ICONS_TEMPLATE
+};
+
 bool isOSXInterfaceStyleDark();
-bool isOSXUseDarkIcons();
+IconsTheme getOSXIconsTheme();
 
 #endif

src/gui/src/OSXHelpers.mm

@@ -30,13 +30,12 @@ isOSXInterfaceStyleDark()
    return (style && [style isKindOfClass:[NSString class]] && NSOrderedSame == [style caseInsensitiveCompare:@"dark"]);
 }
 
-bool
+IconsTheme
-isOSXUseDarkIcons()
+getOSXIconsTheme()
 {
-   if (@available(macOS 11, *)) {
+   if (@available(macOS 11, *))
-      return true;
+      return IconsTheme::ICONS_TEMPLATE;
-   }
+   else if(isOSXInterfaceStyleDark())
-   else {
+      return IconsTheme::ICONS_DARK;
-      return isOSXInterfaceStyleDark();
+   return IconsTheme::ICONS_LIGHT;
-   }
 }