TextEditor: Add declaration format description

Change-Id: Ibea12f324308a07d7e549d60a1b1c5767659efb3
Reviewed-by: David Schulz <david.schulz@theqtcompany.com>

src/plugins/texteditor/fontsettingspage.h

@@ -57,6 +57,7 @@ public:
         ShowBackgroundControl = 0x2,
         ShowFontControls = 0x4,
         ShowUnderlineControl = 0x8,
+        ShowFontAndUnderlineControls = ShowFontControls | ShowUnderlineControl,
         AllControls = 0xF,
         AllControlsExceptUnderline = AllControls & ~ShowUnderlineControl,
     };

src/plugins/texteditor/texteditorconstants.cpp

@@ -99,6 +99,7 @@ const char *nameForStyle(TextStyle style)
     case C_WARNING:             return "Warning";
     case C_WARNING_CONTEXT:     return "WarningContext";
 
+    case C_DECLARATION: return "Declaration";
 
     case C_LAST_STYLE_SENTINEL: return "LastStyleSentinel";
     }

src/plugins/texteditor/texteditorconstants.h

@@ -98,6 +98,8 @@ enum TextStyle : quint8 {
     C_ERROR,
     C_ERROR_CONTEXT,
 
+    C_DECLARATION,
+
     C_LAST_STYLE_SENTINEL
 };
 

src/plugins/texteditor/texteditorsettings.cpp

@@ -305,7 +305,10 @@ TextEditorSettings::TextEditorSettings(QObject *parent)
                              QColor(255, 190, 0),
                              QTextCharFormat::DotLine,
                              FormatDescription::ShowUnderlineControl);
-
+    formatDescr.emplace_back(C_DECLARATION,
+                             tr("Declaration"),
+                             tr("Declaration of a function, variable, and so on."),
+                             FormatDescription::ShowFontAndUnderlineControls);
 
     d->m_fontSettingsPage = new FontSettingsPage(formatDescr,
                                                    Constants::TEXT_EDITOR_FONT_SETTINGS,