* Licence details can be found in the file COPYING.
*
* \author Asger Alstrup
- * \author Lars Gullik Bjønnes
+ * \author Lars Gullik Bjønnes
* \author John Levon
- * \author André Pönitz
- * \author Jürgen Vigna
+ * \author André Pönitz
+ * \author Jürgen Vigna
* \author Abdelrazak Younes
*
* Full author contact details are available in file CREDITS.
#ifndef PARAGRAPH_METRICS_H
#define PARAGRAPH_METRICS_H
-#include "Paragraph.h"
+#include "Dimension.h"
+#include "Row.h"
+
+#include <map>
+#include <vector>
namespace lyx {
+/**
+ * Each paragraph is broken up into a number of rows on the screen.
+ * This is a list of such on-screen rows, ordered from the top row
+ * downwards.
+ */
+typedef std::vector<Row> RowList;
+
+class Buffer;
+class BufferView;
+class BufferParams;
+class Font;
+class Inset;
+class Paragraph;
class MetricsInfo;
class PainterInfo;
-/// Helper class for Paragraph Metrics.
-class ParagraphMetrics {
+/// Helper class for paragraph metrics.
+class ParagraphMetrics {
public:
/// Default constructor (only here for STL containers).
- ParagraphMetrics(): par_(0) {};
+ ParagraphMetrics() : position_(0), par_(0) {}
/// The only useful constructor.
- ParagraphMetrics(Paragraph const & par);
+ explicit ParagraphMetrics(Paragraph const & par);
/// Copy operator.
- /// Important note: We don't copy \c row_change_status_ and
- /// \c row_signature_ because those are updated externally with
- /// \c updateRowChangeStatus() in TextMetrics::redoParagraph().
ParagraphMetrics & operator=(ParagraphMetrics const &);
+ void reset(Paragraph const & par);
+
///
Row & getRow(pos_type pos, bool boundary);
///
Dimension const & dim() const { return dim_; }
Dimension & dim() { return dim_; }
/// total height of paragraph
- unsigned int height() const { return dim_.height(); }
+ int height() const { return dim_.height(); }
/// total width of paragraph, may differ from workwidth
- unsigned int width() const { return dim_.width(); }
+ int width() const { return dim_.width(); }
/// ascend of paragraph above baseline
- unsigned int ascent() const { return dim_.ascent(); }
+ int ascent() const { return dim_.ascent(); }
/// descend of paragraph below baseline
- unsigned int descent() const { return dim_.descent(); }
+ int descent() const { return dim_.descent(); }
/// Text updates the rows using this access point
RowList & rows() { return rows_; }
/// The painter and others use this
RowList const & rows() const { return rows_; }
- /// The painter and others use this
- std::vector<bool> const & rowChangeStatus() const
- { return row_change_status_; }
- ///
- void updateRowChangeStatus();
///
- int rightMargin(Buffer const & buffer) const;
+ int rightMargin(BufferView const & bv) const;
/// dump some information to lyxerr
void dump() const;
-private:
///
- size_type calculateRowSignature(Row const &);
+ bool hfillExpansion(Row const & row, pos_type pos) const;
+
+ ///
+ size_t computeRowSignature(Row const &, BufferParams const & bparams) const;
+
///
- mutable RowList rows_;
+ int position() const { return position_; }
+ void setPosition(int position);
+
+private:
///
- RowSignature row_signature_;
+ int position_;
///
- std::vector<bool> row_change_status_;
+ mutable RowList rows_;
/// cached dimensions of paragraph
Dimension dim_;
///