X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FBufferView.h;h=d41826067128c4e037a6a2cb891e863a54a095e1;hb=4a75fe0310ac64a079edab0c07d8f8eebaf519c0;hp=a79c7bbb62e6b9da5c663fcb7bdfbdc8995362ab;hpb=833f0bab524dca79aa99a602c8424972e95b04fb;p=lyx.git

diff --git a/src/BufferView.h b/src/BufferView.h
index a79c7bbb62..d418260671 100644
--- a/src/BufferView.h
+++ b/src/BufferView.h
@@ -36,7 +36,6 @@ class FuncRequest;
 class FuncStatus;
 class Intl;
 class Inset;
-class Menu;
 class ParIterator;
 class ParagraphMetrics;
 class Point;
@@ -52,6 +51,9 @@ enum CursorStatus {
 /// Scrollbar Parameters.
 struct ScrollbarParameters
 {
+	ScrollbarParameters()
+		: min(0), max(0), position(0), single_step(1), page_step(1)
+	{}
 	/// Minimum scrollbar position in pixels.
 	int min;
 	/// Maximum scrollbar position in pixels.
@@ -96,6 +98,12 @@ public:
 	/// left margin
 	int leftMargin() const;
 
+	/// \return true if the BufferView is at the top of the document.
+	bool isTopScreen() const;
+
+	/// \return true if the BufferView is at the bottom of the document.
+	bool isBottomScreen() const;
+
 	/// perform pending metrics updates.
 	/** \c Update::FitCursor means first to do a FitCursor, and to
 	 * force an update if screen position changes.
@@ -136,6 +144,9 @@ public:
 	/// set the cursor based on the given TeX source row.
 	void setCursorFromRow(int row);
 
+	/// set cursor to the given inset. Return true if found.
+	bool setCursorFromInset(Inset const *);
+
 	/// Ensure that the BufferView cursor is visible.
 	/// This method will automatically scroll and update the BufferView
 	/// if needed.
@@ -147,11 +158,11 @@ public:
 	/// LFUN_SCROLL Helper.
 	void lfunScroll(FuncRequest const & cmd);
 	/// scroll down document by the given number of pixels.
-	void scrollDown(int pixels);
+	int scrollDown(int pixels);
 	/// scroll up document by the given number of pixels.
-	void scrollUp(int pixels);
+	int scrollUp(int pixels);
 	/// scroll document by the given number of pixels.
-	void scroll(int pixels);
+	int scroll(int pixels);
 	/// Scroll the view by a number of pixels.
 	void scrollDocView(int pixels);
 	/// Set the cursor position based on the scrollbar one.