Add SCI_SCROLLVERTICAL API.

1 files changed, 7 insertions, 1 deletions

diff --git a/src/Editor.h b/src/Editor.h
index 46879cdc4..f8bc18970 100644
--- a/src/Editor.h
+++ b/src/Editor.h
@@ -283,6 +283,12 @@ protected:	// ScintillaBase subclass needs access to much of Editor
 	// Wrapping support
 	WrapPending wrapPending;
 	ActionDuration durationWrapOneByte;
+	bool insideWrapScroll;
+	struct LineDocSub {
+		Scintilla::Line lineDoc = 0;
+		Scintilla::Line subLine = 0;
+	};
+	std::optional<LineDocSub> scrollToAfterWrap;
 
 	bool convertPastes;
 
@@ -417,7 +423,7 @@ protected:	// ScintillaBase subclass needs access to much of Editor
 	Sci::Position FormatRange(Scintilla::Message iMessage, Scintilla::uptr_t wParam, Scintilla::sptr_t lParam);
 	long TextWidth(Scintilla::uptr_t style, const char *text);
 
-	virtual void SetVerticalScrollPos() = 0;
+	virtual void SetVerticalScrollPos();
 	virtual void SetHorizontalScrollPos() = 0;
 	virtual bool ModifyScrollBars(Sci::Line nMax, Sci::Line nPage) = 0;
 	virtual void ReconfigureScrollBars();