1 files changed, 34 insertions, 0 deletions
diff --git a/src/texteditor.h b/src/texteditor.h
index af542341..0ae39c60 100644
--- a/src/texteditor.h
+++ b/src/texteditor.h
@@ -23,6 +23,8 @@ private:
 };
 
 
+// mostly from https://doc.qt.io/qt-5/qtwidgets-widgets-codeeditor-example.html
+//
 class TextEditorLineNumbers : public QWidget
 {
 public:
@@ -38,12 +40,37 @@ private:
 
   void updateAreaWidth();
   void updateArea(const QRect &rect, int dy);
+  void highlightCurrentLine();
+};
+
+
+class TextEditorHighlighter : public QSyntaxHighlighter
+{
+public:
+  TextEditorHighlighter(QTextDocument* doc);
+
+  QColor backgroundColor();
+  void setBackgroundColor(const QColor& c);
+
+  QColor textColor();
+  void setTextColor(const QColor& c);
+
+protected:
+  void highlightBlock(const QString& text) override;
+
+private:
+  QColor m_background, m_text;
+
+  void changed();
 };
 
 
 class TextEditor : public QPlainTextEdit
 {
   Q_OBJECT
+  Q_PROPERTY(QString textColor READ textColor WRITE setTextColor)
+  Q_PROPERTY(QString backgroundColor READ backgroundColor WRITE setBackgroundColor)
+
   friend class TextEditorLineNumbers;
 
 public:
@@ -62,6 +89,12 @@ public:
 
   bool dirty() const;
 
+  QString textColor() const;
+  void setTextColor(const QString& s);
+
+  QString backgroundColor() const;
+  void setBackgroundColor(const QString& s);
+
 signals:
   void modified(bool b);
   void wordWrapChanged(bool b);
@@ -72,6 +105,7 @@ protected:
 private:
   TextEditorToolbar m_toolbar;
   TextEditorLineNumbers* m_lineNumbers;
+  TextEditorHighlighter* m_highlighter;
   QString m_filename;
   QString m_encoding;
   bool m_dirty;