Adding xmpprint sample

samples/CMakeLists.txt

@@ -36,6 +36,7 @@ SET( SAMPLES addmoddel.cpp
              write2-test.cpp
              xmpparse.cpp
              xmpparser-test.cpp
+             xmpprint.cpp
              xmpsample.cpp
    )
 

samples/Makefile

@@ -80,6 +80,7 @@ BINSRC = addmoddel.cpp        \
          write2-test.cpp      \
          xmpparse.cpp         \
          xmpparser-test.cpp   \
+         xmpprint.cpp         \
          xmpsample.cpp
 
 # Samples that need special treatment during compilation or linking

samples/xmpprint.cpp

@@ -0,0 +1,69 @@
+// ***************************************************************** -*- C++ -*-
+// xmpprint.cpp, $Rev$
+// Read an XMP from a video or graphic file, parse it and print 
+// all (known) properties.
+// ========================================================================
+// Linux standalone compilation : 
+//      g++ -o xmprint xmprint.cpp `pkg-config --cflags --libs exiv2`
+// ========================================================================
+
+#include <exiv2/exiv2.hpp>
+
+#include <string>
+#include <iostream>
+#include <iomanip>
+#include <cassert>
+
+int main(int argc, char** argv)
+{
+try 
+  {
+    if (argc != 2) 
+      {
+        std::cout << "Usage: " << argv[0] << " file\n";
+        return 1;
+      }
+
+    Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(argv[1]);
+    assert (image.get() != 0);
+    image->readMetadata();
+
+    Exiv2::XmpData &xmpData = image->xmpData();
+    if (xmpData.empty()) {
+        std::string error(argv[1]);
+        error += ": No XMP data found in the file";
+        throw Exiv2::Error(1, error);
+    }
+    if (xmpData.empty()) 
+      {
+        std::string error(argv[1]);
+        error += ": No XMP properties found in the XMP packet";
+        throw Exiv2::Error(1, error);
+      }
+
+    for (Exiv2::XmpData::const_iterator md = xmpData.begin();
+         md != xmpData.end(); ++md) 
+      {
+        std::cout << std::setfill(' ') << std::left
+                  << std::setw(44)
+                  << md->key() << " "
+                  << std::setw(9) << std::setfill(' ') << std::left
+                  << md->typeName() << " "
+                  << std::dec << std::setw(3)
+                  << std::setfill(' ') << std::right
+                  << md->count() << "  "
+                  << std::dec << md->value()
+                  << std::endl;
+      }
+
+    Exiv2::XmpParser::terminate();
+
+    return 0;
+  }
+catch (Exiv2::AnyError& e) 
+  {
+    std::cout << "Caught Exiv2 exception '" << e << "'\n";
+    return -1;
+  }
+}
+