+// -*- C++ -*-
+/* \file coordcache.h
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author André Pönitz
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
#ifndef COORDCACHE_H
#define COORDCACHE_H
-class InsetBase;
-class LyXText;
-class MathArray;
-class Paragraph;
+// It seems that MacOSX define the check macro.
+#undef check
#include "support/types.h"
-#include <boost/assert.hpp>
-
#include <map>
+namespace lyx {
-// All positions cached in this cache are only valid between subsequent
-// updated. (x,y) == (0,0) is the upper left screen corner, x increases
-// to the right, y increases downwords.
+class InsetBase;
+class LyXText;
+class MathArray;
+class Paragraph;
void lyxbreaker(void const * data, const char * hint, int size);
-void lyxaborter(int x, int y);
class Point {
public:
: x_(0), y_(0)
{}
- Point(int x, int y) : x_(x), y_(y)
- {
- BOOST_ASSERT(x > -3000);
- BOOST_ASSERT(x < 4000);
- BOOST_ASSERT(y > -3000);
- BOOST_ASSERT(y < 4000);
- }
+ Point(int x, int y);
int x_, y_;
};
-
template <class T> class CoordCacheBase {
public:
void clear()
data_.clear();
}
+ bool const empty() const
+ {
+ return data_.empty();
+ }
+
void add(T const * thing, int x, int y)
{
data_[thing] = Point(x, y);
typedef std::map<T const *, Point> cache_type;
cache_type data_;
-};
+public:
+ cache_type const & getData() const { return data_; }
+};
+/**
+ * A global cache that allows us to come from a paragraph in a document
+ * to a position point on the screen.
+ * All points cached in this cache are only valid between subsequent
+ * updates. (x,y) == (0,0) is the upper left screen corner, x increases
+ * to the right, y increases downwords.
+ * The cache is built in BufferView::updateMetrics which is called
+ * from BufferView::update. The individual points are added
+ * while we paint them. See for instance paintPar in RowPainter.C.
+ */
class CoordCache {
public:
void clear();
- Point get(LyXText const *, lyx::pit_type);
+ Point get(LyXText const *, pit_type) const;
+
+ /// A map from paragraph index number to screen point
+ typedef std::map<pit_type, Point> InnerParPosCache;
+ /// A map from a LyXText to the map of paragraphs to screen points
+ typedef std::map<LyXText const *, InnerParPosCache> ParPosCache;
+ /// A map from a CursorSlice to screen points
+ typedef std::map<LyXText const *, InnerParPosCache> SliceCache;
+
+ /// A map from MathArray to position on the screen
+ CoordCacheBase<MathArray> & arrays() { return arrays_; }
+ CoordCacheBase<MathArray> const & getArrays() const { return arrays_; }
+ /// A map from insets to positions on the screen
+ CoordCacheBase<InsetBase> & insets() { return insets_; }
+ CoordCacheBase<InsetBase> const & getInsets() const { return insets_; }
+ /// A map from (LyXText, paragraph) pair to screen positions
+ ParPosCache & parPos() { return pars_; }
+ ParPosCache const & getParPos() const { return pars_; }
+ ///
+ SliceCache & slice(bool boundary)
+ {
+ return boundary ? slices1_ : slices0_;
+ }
+ SliceCache const & getSlice(bool boundary) const
+ {
+ return boundary ? slices1_ : slices0_;
+ }
+ /// Dump the contents of the cache to lyxerr in debugging form
+ void dump() const;
+private:
+ /// MathArrays
CoordCacheBase<MathArray> arrays_;
-
- // all insets
+ // All insets
CoordCacheBase<InsetBase> insets_;
-
- // paragraph grouped by owning text
- typedef std::map<lyx::pit_type, Point> InnerParPosCache;
- typedef std::map<LyXText const *, InnerParPosCache> ParPosCache;
+ /// Paragraph grouped by owning text
ParPosCache pars_;
+ /// Used with boundary == 0
+ SliceCache slices0_;
+ /// Used with boundary == 1
+ SliceCache slices1_;
};
-extern CoordCache theCoords;
+} // namespace lyx
#endif