Remove cached var from RenderPreview. Changes elsewhere to suit.

[lyx.git] / src / lyxrow.h

diff --git a/src/lyxrow.h b/src/lyxrow.h
index 4909a3dcddea1b3feeb268c327488518e41ce32a..d855d77e30942f745ed2698a2a20ac98c2084cfb 100644 (file)
--- a/src/lyxrow.h
+++ b/src/lyxrow.h
@@ -1,43 +1,98 @@
 // -*- C++ -*-
-/* This file is part of
- * ====================================================== 
- * 
- *           LyX, The Document Processor
- *      
- *           Copyright 1995 Matthias Ettrich
- *           Copyright 1995-2000 The LyX Team.
+/**
+ * \file lyxrow.h
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
  *
- * ====================================================== */
+ * \author Matthias Ettrich
+ * \author Lars Gullik Bjønnes
+ *
+ * Full author contact details are available in file CREDITS.
+ *
+ * Metrics for an on-screen text row.
+ */
 
 #ifndef LYXROW_H
 #define LYXROW_H
 
-#include "lyxparagraph.h"
+#include "support/types.h"
 
 ///
-struct Row {
+class Row {
+public:
+       ///
+       Row();
+       ///
+       Row(lyx::pos_type pos);
+       ///
+       void pos(lyx::pos_type p);
+       ///
+       lyx::pos_type pos() const;
+       ///
+       void endpos(lyx::pos_type p);
+       ///
+       lyx::pos_type endpos() const;
+       ///
+       void height(unsigned int h) { height_ = h; }
        ///
-       LyXParagraph * par;
+       unsigned int height() const { return height_; }
        ///
-       LyXParagraph::size_type pos;
-       /** what is missing to a full row can be negative.
-         Needed for hfills, flushright, block etc. */
-       mutable int fill;
+       void width(unsigned int w);
        ///
-       unsigned short  height;
+       unsigned int width() const;
        ///
-       unsigned short ascent_of_text;
+       void ascent_of_text(unsigned int a);
        ///
-       unsigned int  baseline;
+       unsigned int ascent_of_text() const;
        ///
-       Row()
-               : par(0), pos(0), fill(0), height(0),
-                 ascent_of_text(0), baseline(0), next(0), previous(0)
-               {}
+       void top_of_text(unsigned int top);
        ///
-       Row * next;
+       unsigned int top_of_text() const;
        ///
-       Row * previous;
+       void baseline(unsigned int b);
+       ///
+       unsigned int baseline() const;
+       /// return true if this row is the start of a paragraph
+       bool isParStart() const;
+       /// return the cached y position
+       unsigned int y_offset() const { return y_offset_; }
+       /// cache the y position
+       void y_offset(unsigned int newy) { y_offset_ = newy; }
+       /// current debugging only
+       void dump(const char * = "") const;
+
+private:
+       /// first pos covered by this row
+       lyx::pos_type pos_;
+       /// one behind last pos covered by this row
+       lyx::pos_type end_;
+       ///
+       unsigned int height_;
+       ///
+       unsigned int width_;
+       /// cached y position
+       unsigned int y_offset_;
+       /// ascent from baseline including prelude space
+       unsigned short ascent_of_text_;
+       /// the top of the real text in the row
+       unsigned int top_of_text_;
+       ///
+       unsigned int baseline_;
 };
 
+
+class RowMetrics {
+public:
+       RowMetrics();
+       /// width of a separator (i.e. space)
+       double separator;
+       /// width of hfills in the body
+       double hfill;
+       /// width of hfills in the label
+       double label_hfill;
+       /// the x position of the row
+       double x;
+};
+
+
 #endif