comparison layer/ImageRegionFinder.h @ 283:86a112b5b319

* Make it possible to "measure" a feature on the spectrogram by double-
  clicking in measure mode
* Make shift-click-drag (for zoom to region) work in measure mode as well
  as navigate mode.  It would be nice to be able to shift-doubleclick to
  zoom on a feature directly using a combination of these last two features,
  but that isn't possible yet.
* Make Del delete the measurement under the mouse pointer.

+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2007 QMUL.
+    
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#ifndef _IMAGE_REGION_FINDER_H_
+#define _IMAGE_REGION_FINDER_H_
+
+#include <QColor>
+#include <QRect>
+
+class QImage;
+
+class ImageRegionFinder
+{
+public:
+    ImageRegionFinder();
+    virtual ~ImageRegionFinder();
+
+    QRect findRegionExtents(QImage *image, QPoint origin) const;
+
+protected:
+    bool similar(QRgb a, QRgb b) const;
+};
+
+#endif
+