X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flibr2c2%2Fblockiter.h;fp=source%2Flibr2c2%2Fblockiter.h;h=5c235a54eb2a05be726755a529b73a17ed19ce17;hb=1ff06c5bc46a677fa389ef86c6b26664368f1653;hp=0000000000000000000000000000000000000000;hpb=9b05c573a38639827697fe393d55b7c76f5bde45;p=r2c2.git

diff --git a/source/libr2c2/blockiter.h b/source/libr2c2/blockiter.h
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+/* $Id$
+
+This file is part of R²C²
+Copyright © 2010  Mikkosoft Productions, Mikko Rasa
+Distributed under the GPL
+*/
+
+#ifndef LIBR2C2_BLOCKITER_H_
+#define LIBR2C2_BLOCKITER_H_
+
+namespace R2C2 {
+
+class Block;
+class Route;
+class TrackIter;
+
+/**
+An iterator for traversing blocks.
+*/
+class BlockIter
+{
+private:
+	Block *_block;
+	unsigned _entry;
+
+public:
+	BlockIter();
+	BlockIter(Block *, unsigned);
+
+	Block *block() const { return _block; }
+	unsigned entry() const { return _entry; }
+	TrackIter track_iter() const;
+	const Block::Endpoint &endpoint() const;
+
+private:
+	int get_exit(const Route *) const;
+public:
+	BlockIter next(const Route * = 0) const;
+	BlockIter reverse(const Route * = 0) const;
+	BlockIter flip() const;
+
+	Block &operator*() const;
+	Block *operator->() const { return _block; }
+	bool operator==(const BlockIter &) const;
+	bool operator!=(const BlockIter &other) const { return !(*this==other); }
+	operator bool() const { return _block!=0; }
+};
+
+} // namespace R2C2
+
+#endif