Add some logging to the system font finder.

diff --git a/src/lib/font_config.cc b/src/lib/font_config.cc
index 5c9eebb3fb752f7d2cc4fbc104235d9f71d6bbc7..40b9770c76062069af9ece55c5bd7fe30b7a6d3c 100644 (file)
--- a/src/lib/font_config.cc
+++ b/src/lib/font_config.cc
@@ -20,6 +20,7 @@
 
 
 #include "dcpomatic_assert.h"
+#include "dcpomatic_log.h"
 #include "font_config.h"
 #include <fontconfig/fontconfig.h>
 #include <boost/filesystem.hpp>
@@ -91,24 +92,35 @@ FontConfig::system_font_with_name(string name)
 {
        optional<boost::filesystem::path> path;
 
+       LOG_GENERAL("Searching system for font %1", name);
        auto pattern = FcNameParse(reinterpret_cast<FcChar8 const*>(name.c_str()));
        auto object_set = FcObjectSetBuild(FC_FILE, nullptr);
        auto font_set = FcFontList(_config, pattern, object_set);
        if (font_set) {
+               LOG_GENERAL("%1 candidate fonts found", font_set->nfont);
                for (int i = 0; i < font_set->nfont; ++i) {
                        auto font = font_set->fonts[i];
                        FcChar8* file;
                        if (FcPatternGetString(font, FC_FILE, 0, &file) == FcResultMatch) {
                                path = boost::filesystem::path(reinterpret_cast<char*>(file));
+                               LOG_GENERAL("Found %1", *path);
                                break;
                        }
                }
                FcFontSetDestroy(font_set);
+       } else {
+               LOG_GENERAL_NC("No candidate fonts found");
        }
 
        FcObjectSetDestroy(object_set);
        FcPatternDestroy(pattern);
 
+       if (path) {
+               LOG_GENERAL("Searched system for font %1, found %2", name, *path);
+       } else {
+               LOG_GENERAL("Searched system for font %1; nothing found", name);
+       }
+
        return path;
 }