moving trunk for module inkscape

(bzr r1)

1 files changed, 44 insertions, 0 deletions

diff --git a/src/line-snapper.h b/src/line-snapper.h
new file mode 100644
index 000000000..581466d33
--- /dev/null
+++ b/src/line-snapper.h
@@ -0,0 +1,44 @@
+#ifndef SEEN_LINE_SNAPPER_H
+#define SEEN_LINE_SNAPPER_H
+
+/**
+ *    \file src/line-snapper.h
+ *    \brief Superclass for snappers to horizontal and vertical lines.
+ *
+ *    Authors:
+ *      Carl Hetherington <inkscape@carlh.net>
+ *
+ *    Released under GNU GPL, read the file 'COPYING' for more information.
+ */
+
+#include "snapper.h"
+
+namespace Inkscape
+{
+
+class LineSnapper : public Snapper
+{
+public:
+  LineSnapper(SPNamedView const *nv, NR::Coord const d);
+
+protected:
+  typedef std::list<std::pair<NR::Dim2, NR::Coord> > LineList;
+
+private:
+  SnappedPoint _doFreeSnap(NR::Point const &p,
+			   std::list<SPItem const *> const &it) const;
+  
+  SnappedPoint _doConstrainedSnap(NR::Point const &p,
+				  NR::Point const &c,
+				  std::list<SPItem const *> const &it) const;
+  
+  /**
+   *  \param p Point that we are trying to snap.
+   *  \return List of lines that we should try snapping to.
+   */
+  virtual LineList _getSnapLines(NR::Point const &p) const = 0;
+};
+
+}
+
+#endif /* !SEEN_LINE_SNAPPER_H */