forgot these...

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8924 a592a061-630c-0410-9148-cb99ea01b6c8

src/coordcache.C

@@ -0,0 +1,24 @@
+
+#include "coordcache.h"
+#include "debug.h"
+
+CoordCache theCoords;
+
+// just a helper to be able to set a breakpoint
+void lyxbreaker(void const * data, const char * hint, int size)
+{
+	lyxerr << "break on pointer: " << data << " hint: " << hint 
+		<< " size: " << size << std::endl;
+}
+
+
+void CoordCache::clear() 
+{
+	lyxerr << "CoordCache: removing " << arrays_.data_.size()
+		<< " arrays" << std::endl;
+	lyxerr << "CoordCache: removing " << insets_.data_.size()
+		<< " insets" << std::endl;
+	arrays_.clear();
+	insets_.clear();
+}
+

src/coordcache.h

@@ -0,0 +1,91 @@
+#ifndef COORDCACHE_H
+#define COORDCACHE_H
+
+#include "mathed/math_data.h"
+#include "insets/insetbase.h"
+#include "lyxtext.h"
+
+#include <boost/assert.hpp>
+
+#include <map>
+
+void lyxbreaker(void const * data, const char * hint, int size);
+
+struct Point {
+	Point()
+		: 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);
+	}	
+
+	int x_, y_;
+};
+
+
+template <class T> class CoordCacheBase {
+public:
+	void clear()
+	{
+		data_.clear();
+	}
+
+	void add(T const * thing, int x, int y)
+	{
+		data_[thing] = Point(x, y);
+	}
+
+	int x(T const * thing) const
+	{
+		check(thing, "x");
+		return data_.find(thing)->second.x_;
+	}
+
+	int y(T const * thing) const
+	{
+		check(thing, "y");
+		return data_.find(thing)->second.y_;
+	}
+
+	Point xy(T const * thing) const
+	{
+		check(thing, "xy");
+		return data_.find(thing)->second;
+	}
+
+	bool has(T const * thing) const
+	{
+		return data_.find(thing) != data_.end();
+	}
+
+private:
+	friend class CoordCache;
+
+	void check(T const * thing, char const * hint) const
+	{
+		if (!has(thing)) {
+			lyxbreaker(thing, hint, data_.size());
+			BOOST_ASSERT(false);
+		}
+	}
+
+	std::map<T const *, Point> data_;
+};
+
+
+class CoordCache {
+public:
+	void clear();
+
+	CoordCacheBase<MathArray> arrays_;
+	CoordCacheBase<InsetBase> insets_;
+};
+
+extern CoordCache theCoords;
+
+#endif