Use \babelfonts only if babel >= 3.15 is available.

[lyx.git] / src / BufferView.h

diff --git a/src/BufferView.h b/src/BufferView.h
index fc40379d66f8276b497039f9552910736dcc9f5f..45928f256ee44f720b28282eef1057d3cd248eaf 100644 (file)
--- a/src/BufferView.h
+++ b/src/BufferView.h
@@ -16,6 +16,7 @@
 #define BUFFER_VIEW_H
 
 #include "DocumentClassPtr.h"
+#include "TexRow.h"
 #include "update_flags.h"
 
 #include "support/strfwd.h"
@@ -40,13 +41,15 @@ class FuncRequest;
 class FuncStatus;
 class Intl;
 class Inset;
-class PainterInfo;
+class Length;
+class MathData;
+class MathRow;
 class ParIterator;
 class ParagraphMetrics;
 class Point;
+class Row;
 class TexRow;
 class Text;
-struct TextEntry;
 class TextMetrics;
 
 enum CursorStatus {
@@ -105,17 +108,31 @@ public:
        /// left margin
        int leftMargin() const;
 
+       /// return the on-screen size of this length
+       /*
+        *  This is a wrapper around Length::inPixels that uses the
+        *  bufferview width as width and the EM value of the default
+        *  document font.
+        */
+       int inPixels(Length const & len) const;
+
+       /** Return the number of pixels equivalent to \c pix pixels at
+        * 100dpi and 100% zoom.
+        */
+       int zoomedPixels(int pix) 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
+       /// Add \p flags to current update flags and trigger an update.
+       /* If this method is invoked several times before the update
+        * actually takes place, the effect is cumulative.
+        * \c Update::FitCursor means first to do a FitCursor, and to
         * force an update if screen position changes.
         * \c Update::Force means to force an update in any case.
-        * \retval true if a screen redraw is needed
         */
        void processUpdateFlags(Update::flags flags);
 
@@ -131,11 +148,6 @@ public:
        int horizScrollOffset(Text const * text,
                              pit_type pit, pos_type pos) const;
 
-       // Returns true if the row of text starting at (pit, pos) was scrolled
-       // at the last draw event.
-       bool hadHorizScrollOffset(Text const * text,
-                              pit_type pit, pos_type pos) const;
-
        /// reset the scrollbar to reflect current view position.
        void updateScrollbar();
        /// return the Scrollbar Parameters.
@@ -164,10 +176,8 @@ public:
 
        /// set the cursor based on the given TeX source row.
        bool setCursorFromRow(int row);
-       ///
-       bool setCursorFromRow(int row, TexRow const & texrow);
        /// set the cursor based on the given start and end TextEntries.
-       bool setCursorFromEntries(TextEntry start, TextEntry end);
+       bool setCursorFromEntries(TexRow::TextEntry start, TexRow::TextEntry end);
 
        /// set cursor to the given inset. Return true if found.
        bool setCursorFromInset(Inset const *);
@@ -240,9 +250,6 @@ public:
        /// \sa WorkArea
        void mouseEventDispatch(FuncRequest const & ev);
 
-       /// access to anchor.
-       pit_type anchor_ref() const;
-
        ///
        CursorStatus cursorStatus(DocIterator const & dit) const;
        /// access to full cursor.
@@ -250,7 +257,7 @@ public:
        /// access to full cursor.
        Cursor const & cursor() const;
        /// sets cursor.
-       /// This will also open all relevant collapsable insets.
+       /// This will also open all relevant collapsible insets.
        void setCursor(DocIterator const &);
        /// set the selection up to dit.
        void setCursorSelectionTo(DocIterator const & dit);
@@ -276,6 +283,10 @@ public:
        /// update the internal \c ViewMetricsInfo.
        void updateMetrics();
 
+       // this is the "nodraw" drawing stage: only set the positions of the
+       // insets in metrics cache.
+       void updatePosCache();
+
        ///
        TextMetrics const & textMetrics(Text const * t) const;
        TextMetrics & textMetrics(Text const * t);
@@ -287,18 +298,22 @@ public:
        ///
        CoordCache const & coordCache() const;
 
+       ///
+       MathRow const & mathRow(MathData const * cell) const;
+       ///
+       void setMathRow(MathData const * cell, MathRow const & mrow);
+
        ///
        Point getPos(DocIterator const & dit) const;
        /// is the paragraph of the cursor visible ?
        bool paragraphVisible(DocIterator const & dit) const;
        /// is the cursor currently visible in the view
        bool cursorInView(Point const & p, int h) const;
-       /// get the position and height of the cursor
-       void cursorPosAndHeight(Point & p, int & h) const;
-
+       /// get the position and height of the caret
+       void caretPosAndHeight(Point & p, int & h) const;
 
        ///
-       void draw(frontend::Painter & pain);
+       void draw(frontend::Painter & pain, bool paint_caret);
 
        /// get this view's keyboard map handler.
        Intl & getIntl();
@@ -330,7 +345,7 @@ public:
        // Insert plain text file (if filename is empty, prompt for one)
        void insertPlaintextFile(support::FileName const & f, bool asParagraph);
        ///
-       void insertLyXFile(support::FileName const & f);
+       void insertLyXFile(support::FileName const & f, bool const ignorelang = false);
        /// save temporary bookmark for jump back navigation
        void bookmarkEditPosition();
        /// Find and return the inset associated with given dialog name.
@@ -354,13 +369,15 @@ private:
        /// Update current paragraph metrics.
        /// \return true if no further update is needed.
        bool singleParUpdate();
+       /// do the work for the public updateMetrics()
+       void updateMetrics(Update::flags & update_flags);
 
        // Set the row on which the cursor lives.
        void setCurrentRowSlice(CursorSlice const & rowSlice);
 
        // Check whether the row where the cursor lives needs to be scrolled.
        // Update the drawing strategy if needed.
-       void checkCursorScrollOffset(PainterInfo & pi);
+       void checkCursorScrollOffset();
 
        /// The minimal size of the document that is visible. Used
        /// when it is allowed to scroll below the document.