Reapplied Hombres patch (revision c006f93a5f) as it got lost on the way.

rtgui/shcselector.h

@@ -0,0 +1,62 @@
+/*
+ *  This file is part of RawTherapee.
+ *
+ *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
+ *
+ *  RawTherapee 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 3 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  RawTherapee is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _SHCSELECTOR_
+#define _SHCSELECTOR_
+
+#include <gtkmm.h>
+
+class SHCListener {
+    public:
+        virtual void shcChanged () {}
+};
+
+class SHCSelector : public Gtk::DrawingArea {  
+
+  protected:
+
+    Glib::RefPtr<Gdk::GC> gc_;
+    Glib::RefPtr<Gdk::Pixmap> backBuffer;
+
+    int movingPosition;
+    double tmpX, tmpPos;
+
+    double positions[3];
+    double wslider;
+    
+    SHCListener* cl;
+
+  public:
+         
+    SHCSelector();
+
+    void setSHCListener (SHCListener* l) { cl = l;; }
+
+    void setPositions (double spos, double cpos, double hpos);
+    void getPositions (double& spos, double& cpos, double& hpos);
+    void on_realize();
+    bool on_expose_event(GdkEventExpose* event);
+    bool on_button_press_event (GdkEventButton* event);
+    bool on_button_release_event (GdkEventButton* event);
+    bool on_motion_notify_event (GdkEventMotion* event);
+    void styleChanged (const Glib::RefPtr<Gtk::Style>& style);
+    void reset ();
+};
+
+#endif
+