* 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"
namespace lyx {
-class MetricsInfo;
-class PainterInfo;
+class BufferView;
+class Paragraph;
-/// 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() {}
/// 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 &);
- ///
- Row & getRow(pos_type pos, bool boundary);
+ void reset(Paragraph const & par);
+
///
Row const & getRow(pos_type pos, bool boundary) const;
///
size_t pos2row(pos_type pos) const;
- /// BufferView::redoParagraph updates this
+ /// TextMetrics::redoParagraph updates this
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(); }
- /// LyXText updates the rows using this access point
+ 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(BufferView const & bv) const;
///
- int rightMargin(Buffer const & buffer) const;
+ Paragraph const & par() const { return *par_; }
/// dump some information to lyxerr
void dump() const;
-private:
///
- size_type calculateRowSignature(Row const &);
+ bool hfillExpansion(Row const & row, pos_type pos) const;
+
+ /// The vertical position of the baseline of the first line of the paragraph
+ int position() const;
+ void setPosition(int position);
+ /// Set position to unknown
+ void resetPosition();
+ /// Return true when the position of the paragraph is known
+ bool hasPosition() const;
+ /// The vertical position of the top of the paragraph
+ int top() const { return position_ - dim_.ascent(); }
+ /// The vertical position of the bottom of the paragraph
+ int bottom() const { return position_ + dim_.descent(); }
+ ///
+ int id() const { return id_; }
+
+private:
///
- mutable RowList rows_;
+ int position_ = 0;
///
- RowSignature row_signature_;
+ int id_ = -1;
///
- std::vector<bool> row_change_status_;
+ mutable RowList rows_;
/// cached dimensions of paragraph
Dimension dim_;
///
- Paragraph const * par_;
+ Paragraph const * par_ = nullptr;
};
} // namespace lyx