// It seems that MacOSX define the check macro.
#undef check
+#include "Dimension.h"
+
#include "support/types.h"
#include <map>
void lyxbreaker(void const * data, const char * hint, int size);
-class Point {
-public:
- Point()
- : x_(0), y_(0)
- {}
+struct Geometry {
+ Point pos;
+ Dimension dim;
+
+ bool covers(int x, int y) const
+ {
+ return x >= pos.x_
+ && x <= pos.x_ + dim.wid
+ && y >= pos.y_ - dim.asc
+ && y <= pos.y_ + dim.des;
+ }
+
+ int squareDistance(int x, int y) const
+ {
+ int xx = 0;
+ int yy = 0;
+
+ if (x < pos.x_)
+ xx = pos.x_ - x;
+ else if (x > pos.x_ + dim.wid)
+ xx = x - pos.x_ - dim.wid;
- Point(int x, int y);
+ if (y < pos.y_ - dim.asc)
+ yy = pos.y_ - dim.asc - y;
+ else if (y > pos.y_ + dim.des)
+ yy = y - pos.y_ - dim.des;
- int x_, y_;
+ // Optimisation: We avoid to compute the sqrt on purpose.
+ return xx*xx + yy*yy;
+ }
};
+
template <class T> class CoordCacheBase {
public:
void clear()
void add(T const * thing, int x, int y)
{
- data_[thing] = Point(x, y);
+ data_[thing].pos = Point(x, y);
+ }
+
+ void add(T const * thing, Dimension const & dim)
+ {
+ data_[thing].dim = dim;
+ }
+
+ Geometry const & geometry(T const * thing) const
+ {
+ check(thing, "geometry");
+ return data_.find(thing)->second;
+ }
+
+ Dimension const & dim(T const * thing) const
+ {
+ check(thing, "dim");
+ return data_.find(thing)->second.dim;
}
int x(T const * thing) const
{
check(thing, "x");
- return data_.find(thing)->second.x_;
+ return data_.find(thing)->second.pos.x_;
}
int y(T const * thing) const
{
check(thing, "y");
- return data_.find(thing)->second.y_;
+ return data_.find(thing)->second.pos.y_;
}
Point xy(T const * thing) const
{
check(thing, "xy");
- return data_.find(thing)->second;
+ return data_.find(thing)->second.pos;
}
bool has(T const * thing) const
return data_.find(thing) != data_.end();
}
-// T * find(int x, int y) const
-// {
-// T *
-// cache_type iter
-// }
+ bool covers(T const * thing, int x, int y) const
+ {
+ typename cache_type::const_iterator it = data_.find(thing);
+ return it != data_.end() && it->second.covers(x, y);
+ }
+
+ int squareDistance(T const * thing, int x, int y) const
+ {
+ typename cache_type::const_iterator it = data_.find(thing);
+ if (it == data_.end())
+ return 1000000;
+ return it->second.squareDistance(x, y);
+ }
private:
friend class CoordCache;
lyxbreaker(thing, hint, data_.size());
}
- typedef std::map<T const *, Point> cache_type;
+ typedef std::map<T const *, Geometry> cache_type;
cache_type data_;
public:
};
/**
- * A global cache that allows us to come from a paragraph in a document
- * to a position point on the screen.
+ * A BufferView dependent cache that allows us to come from an inset in
+ * a document to a position point and dimension 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.
+ * The dimension part is built in BufferView::updateMetrics() and the
+ * diverse Inset::metrics() calls.
+ * The individual points are added at drawing time in
+ * BufferView::updateMetrics(). The math inset position are cached in
+ * the diverse InsetMathXXX::draw() calls and the in-text inset position
+ * are cached in RowPainter::paintInset().
+ * FIXME: For mathed, it would be nice if the insets did not saves their
+ * position themselves. That should be the duty of the containing math
+ * array.
*/
class CoordCache {
public:
void clear();
- /// A map from paragraph index number to screen point
- typedef std::map<pit_type, Point> InnerParPosCache;
- /// A map from a CursorSlice to screen points
- typedef std::map<Text const *, InnerParPosCache> SliceCache;
-
/// A map from MathData to position on the screen
CoordCacheBase<MathData> & arrays() { return arrays_; }
CoordCacheBase<MathData> const & getArrays() const { return arrays_; }
/// A map from insets to positions on the screen
CoordCacheBase<Inset> & insets() { return insets_; }
CoordCacheBase<Inset> const & getInsets() const { return insets_; }
- ///
- 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;
CoordCacheBase<MathData> arrays_;
// All insets
CoordCacheBase<Inset> insets_;
- /// Used with boundary == 0
- SliceCache slices0_;
- /// Used with boundary == 1
- SliceCache slices1_;
};
} // namespace lyx