CPlusPlus: Add a property icon

Properties have been so useful in Qt for Years, and they will
continue being so. Properties deserve a proper icon.

Change-Id: Ifd19c97470a48a033bbe4017855f7b150befb365
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>
Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>

src/libs/cplusplus/Icons.cpp

@@ -107,6 +107,8 @@ Icons::IconType Icons::iconTypeForSymbol(const Symbol *symbol)
         return NamespaceIconType;
     } else if (symbol->isTypenameArgument()) {
         return ClassIconType;
+    } else if (symbol->isQtPropertyDeclaration() || symbol->isObjCPropertyDeclaration()) {
+        return PropertyIconType;
     } else if (symbol->isUsingNamespaceDirective() ||
                symbol->isUsingDeclaration()) {
         // TODO: Might be nice to have a different icons for these things
@@ -136,6 +138,10 @@ QIcon Icons::iconForType(IconType type)
         QLatin1String(":/codemodel/images/signal.png"), Theme::IconsCodeModelFunctionColor};
     static const IconMaskAndColor slotIcon {
         QLatin1String(":/codemodel/images/slot.png"), Theme::IconsCodeModelFunctionColor};
+    static const IconMaskAndColor propertyIcon {
+        QLatin1String(":/codemodel/images/property.png"), Theme::IconsCodeModelOverlayForegroundColor};
+    static const IconMaskAndColor propertyBackgroundIcon {
+        QLatin1String(":/codemodel/images/propertybackground.png"), Theme::IconsCodeModelOverlayBackgroundColor};
     static const IconMaskAndColor protectedIcon {
         QLatin1String(":/codemodel/images/protected.png"), Theme::IconsCodeModelOverlayForegroundColor};
     static const IconMaskAndColor protectedBackgroundIcon {
@@ -291,6 +297,12 @@ QIcon Icons::iconForType(IconType type)
         }, Icon::Tint).icon());
         return icon;
     }
+    case PropertyIconType: {
+        const static QIcon icon(Icon({
+            variableIcon, propertyBackgroundIcon, propertyIcon
+        }, Icon::Tint).icon());
+        return icon;
+    }
     default:
         break;
     }

src/libs/cplusplus/Icons.h

@@ -65,6 +65,7 @@ public:
         SlotPrivateIconType,
         KeywordIconType,
         MacroIconType,
+        PropertyIconType,
         UnknownIconType
     };
 

src/libs/cplusplus/cplusplus.qrc

@@ -18,6 +18,10 @@
         <file>images/private@2x.png</file>
         <file>images/privatebackground.png</file>
         <file>images/privatebackground@2x.png</file>
+        <file>images/property.png</file>
+        <file>images/property@2x.png</file>
+        <file>images/propertybackground.png</file>
+        <file>images/propertybackground@2x.png</file>
         <file>images/protected.png</file>
         <file>images/protected@2x.png</file>
         <file>images/protectedbackground.png</file>