CMake: Consider visual whitespaces format in the highlighter.

src/plugins/cmakeprojectmanager/cmakeeditor.cpp

@@ -109,7 +109,8 @@ void CMakeEditor::setFontSettings(const TextEditor::FontSettings &fs)
         categories << QLatin1String(TextEditor::Constants::C_LABEL)  // variables
                 << QLatin1String(TextEditor::Constants::C_LINK)   // functions
                 << QLatin1String(TextEditor::Constants::C_COMMENT)
-                << QLatin1String(TextEditor::Constants::C_STRING);
+                << QLatin1String(TextEditor::Constants::C_STRING)
+                << QLatin1String(TextEditor::Constants::C_VISUAL_WHITESPACE);
     }
 
     const QVector<QTextCharFormat> formats = fs.toTextCharFormats(categories);

src/plugins/cmakeprojectmanager/cmakehighlighter.cpp

@@ -129,5 +129,7 @@ void CMakeHighlighter::highlightBlock(const QString &text)
     } else {
         setCurrentBlockState(0);
     }
+
+    applyFormatToSpaces(text, m_formats[CMakeVisualWhiteSpaceFormat]);
 }
 

src/plugins/cmakeprojectmanager/cmakehighlighter.h

@@ -50,6 +50,7 @@ public:
         CMakeFunctionFormat,
         CMakeCommentFormat,
         CMakeStringFormat,
+        CMakeVisualWhiteSpaceFormat,
         NumCMakeFormats
     };