Pipette and "On Preview Widgets" branch. See issue 227

The pipette part is already working quite nice but need to be finished. The widgets part needs more work...

rtengine/rtetest.cc

@@ -0,0 +1,70 @@
+/*
+ *  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/>.
+ */
+#include "rtengine.h"
+#include <iostream> 
+//#include <giomm.h>
+#include <helpers.h>
+
+class PListener : public rtengine::ProgressListener {
+    
+    public:
+        void setProgressStr (Glib::ustring str) {
+            std::cout << str << std::endl;
+        }
+        void setProgress (double p) {
+            std::cout << p << std::endl;
+        }
+};
+
+int main (int argc, char* argv[]) {
+
+    if (argc<4) {
+        std::cout << "Usage: rtcmd <infile> <paramfile> <outfile>" << std::endl;
+        exit(1);
+    }
+
+    rtengine::Settings s;
+    s.demosaicMethod = "hphd";
+    s.colorCorrectionSteps = 2;
+    s.iccDirectory = "";
+    s.colorimetricIntent = 1;
+    s.monitorProfile = "";
+
+    Glib::thread_init ();
+    rtengine::init (s,"");
+    PListener pl;
+
+    rtengine::InitialImage* ii;
+    int errorCode;
+    ii = rtengine::InitialImage::load (argv[1], true, errorCode, &pl);
+    if (!ii)
+        ii = rtengine::InitialImage::load (argv[1], false, errorCode, &pl);
+    if (!ii) {
+        std::cout << "Input file not supported." << std::endl;
+        exit(2);
+    }
+
+    rtengine::procparams::ProcParams params;
+    params.load (argv[2]);
+
+    rtengine::ProcessingJob* job = ProcessingJob::create (ii, params);
+    rtengine::IImage16* res = rtengine::processImage (job, errorCode, &pl);
+    res->saveToFile (argv[3]);
+}
+