Add uca-info tool to print current prop values

2 files changed, 123 insertions, 2 deletions

diff --git a/bin/tools/CMakeLists.txt b/bin/tools/CMakeLists.txt
index 634b7a6..977af28 100644
--- a/bin/tools/CMakeLists.txt
+++ b/bin/tools/CMakeLists.txt
@@ -19,14 +19,14 @@ configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config.h.in
 include_directories(${CMAKE_CURRENT_BINARY_DIR}
                     ${CMAKE_CURRENT_SOURCE_DIR})
 
-set(BINARIES "benchmark" "gen-doc" "grab")
+set(BINARIES "benchmark" "gen-doc" "grab" "info")
 
 foreach (BINARY ${BINARIES})
     add_executable(uca-${BINARY} ${BINARY}.c common.c)
     target_link_libraries(uca-${BINARY} ${libs})
 endforeach ()
 
-install(TARGETS uca-benchmark uca-grab uca-gen-doc
+install(TARGETS uca-benchmark uca-grab uca-gen-doc uca-info
         RUNTIME DESTINATION ${UCA_BINDIR}
         COMPONENT executables)
 #}}}
diff --git a/bin/tools/info.c b/bin/tools/info.c
new file mode 100644
index 0000000..b2ac0c8
--- /dev/null
+++ b/bin/tools/info.c
@@ -0,0 +1,121 @@
+/* Copyright (C) 2012 Matthias Vogelgesang <matthias.vogelgesang@kit.edu>
+   (Karlsruhe Institute of Technology)
+
+   This library is free software; you can redistribute it and/or modify it
+   under the terms of the GNU Lesser General Public License as published by the
+   Free Software Foundation; either version 2.1 of the License, or (at your
+   option) any later version.
+
+   This library 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 Lesser General Public License for more
+   details.
+
+   You should have received a copy of the GNU Lesser General Public License along
+   with this library; if not, write to the Free Software Foundation, Inc., 51
+   Franklin St, Fifth Floor, Boston, MA 02110, USA */
+
+#include <glib-object.h>
+#include "uca-plugin-manager.h"
+#include "uca-camera.h"
+
+
+static void
+print_usage (void)
+{
+    GList *types;
+    UcaPluginManager *manager;
+
+    manager = uca_plugin_manager_new ();
+    g_print ("Usage: uca-info [ ");
+    types = uca_plugin_manager_get_available_cameras (manager);
+
+    if (types == NULL) {
+        g_print ("] -- no camera plugin found\n");
+        return;
+    }
+
+    for (GList *it = g_list_first (types); it != NULL; it = g_list_next (it)) {
+        gchar *name = (gchar *) it->data;
+        if (g_list_next (it) == NULL)
+            g_print ("%s ]\n", name);
+        else
+            g_print ("%s, ", name);
+    }
+}
+
+static const gchar *
+get_flags_description (GParamSpec *pspec)
+{
+    static const gchar *descriptions[] = { "", "RO", "WO", "RW", "" };
+
+    if (pspec->flags >= 3)
+        return descriptions[3];
+
+    return descriptions[pspec->flags];
+}
+
+static void
+print_properties (UcaCamera *camera)
+{
+    GObjectClass *oclass;
+    GParamSpec **pspecs;
+    guint n_props;
+
+    oclass = G_OBJECT_GET_CLASS (camera);
+    pspecs = g_object_class_list_properties (oclass, &n_props);
+
+    for (guint i = 0; i < n_props; i++) {
+        GParamSpec *pspec;
+        GValue value= { 0, { { 0 } } };
+        gchar *value_string;
+        const gchar *name;
+
+        pspec = pspecs[i];
+        name = g_param_spec_get_name (pspec);
+        g_value_init (&value, pspec->value_type);
+
+        g_object_get_property (G_OBJECT (camera), name, &value);
+        value_string = g_strdup_value_contents (&value);
+
+        g_print (" %s | %-26s | %s\n", get_flags_description (pspec), name, value_string);
+
+        g_free (value_string);
+        g_value_unset (&value);
+    }
+
+    g_free (pspecs);
+}
+
+int main(int argc, char *argv[])
+{
+    UcaPluginManager *manager;
+    UcaCamera *camera;
+    gchar *name;
+    GError *error = NULL;
+
+#if !(GLIB_CHECK_VERSION (2, 36, 0))
+    g_type_init();
+#endif
+    manager = uca_plugin_manager_new ();
+
+    if (argc < 2) {
+        name = g_strdup ("Basic camera");
+        camera = g_object_new (UCA_TYPE_CAMERA, NULL);
+    }
+    else {
+        name = argv[1];
+        camera = uca_plugin_manager_get_camera (manager, name, &error, NULL);
+    }
+
+    if (camera == NULL) {
+        g_print("Error during initialization: %s\n", error->message);
+        print_usage();
+        return 1;
+    }
+
+    print_properties (camera);
+
+    g_object_unref (camera);
+    g_object_unref (manager);
+}