QCodeEdit blockselection almost works, without copypaste and with bad visual

libs/widgets/qcodeedit.h

@@ -147,23 +147,33 @@ private:
 	QMap<int, ACClass> ac_classes;
 	QStringList cursor_scope;
 	ACEntry link_entry, help_entry;
+	QTextCursor block_start_cursor;
 	int prev_lc, auto_comp_pl, timer_parse, timer_blink, cur_search_ind, pos_press, pos_el_press;
 	int cursor_width;
 	bool spaces_, _ignore_focus_out, _first, _destructor, _replacing;
-	bool word_complete, help_visible, cursor_state;
+	bool word_complete, help_visible, cursor_state, block_sel_state;
 	
 	bool eventFilter(QObject * o, QEvent * e) override;
 	void showEvent(QShowEvent * ) override;
 	void timerEvent(QTimerEvent * ) override;
 	void leaveEvent(QEvent * ) override;
 	void changeEvent(QEvent * e) override;
+	bool codeKeyEvent(QKeyEvent * ke);
 	void highlightBrackets();
 	void applyExtraSelection();
 	void clearSearch();
 	void moveToSearch();
 	int searchIndFromCursor();
+	QRect cursorRect(QRect * line = 0);
+	QRect blockSelectionRect();
 	void repaintCursor();
 	void drawCursor();
+	bool hasBlockSelection() const;
+	void startBlockSelection();
+	void cancelBlockSelection();
+	void switchBlockSelection(QKeyEvent * ke = 0);
+	bool removeBlockSelection(bool is_del);
+	void insertBlockSelection(QString text);
 	ACEntry findEntryOnCursor(QTextCursor tc, int arg = -1, ACClass * acc = 0, QPair<QStringList, QString> * scope = 0);
 
 private slots: