support DnD in native/gtk-quartz implementation (note: multifile DnD requires a patch to GTK that is not in distribution yet, so for now, this works only with 1 file at a time, or it requires my patch/library).

git-svn-id: svn://localhost/ardour2/branches/2.0-ongoing@2319 d708f5d6-7413-0410-9779-e7cbd77b26cf

2 files changed, 49 insertions, 0 deletions

diff --git a/libs/pbd/convert.cc b/libs/pbd/convert.cc
index ff426cfb80..3c27026546 100644
--- a/libs/pbd/convert.cc
+++ b/libs/pbd/convert.cc
@@ -32,6 +32,7 @@
 
 using std::string;
 using std::vector;
+using Glib::ustring;
 
 namespace PBD {
 
@@ -196,6 +197,52 @@ url_decode (string& url)
 	}
 }
 
+void
+url_decode (ustring& url)
+{
+	ustring::iterator last;
+	ustring::iterator next;
+
+	for (ustring::iterator i = url.begin(); i != url.end(); ++i) {
+		if ((*i) == '+') {
+			next = i;
+			++next;
+			url.replace (i, next, 1, ' ');
+		}
+	}
+
+	if (url.length() <= 3) {
+		return;
+	}
+
+	last = url.end();
+
+	--last; /* points at last char */
+	--last; /* points at last char - 1 */
+
+	for (ustring::iterator i = url.begin(); i != last; ) {
+
+		if (*i == '%') {
+
+			next = i;
+
+			url.erase (i);
+			
+			i = next;
+			++next;
+			
+			if (isxdigit (*i) && isxdigit (*next)) {
+				/* replace first digit with char */
+				url.replace (i, next, 1, (gunichar) int_from_hex (*i,*next));
+				++i; /* points at 2nd of 2 digits */
+				url.erase (i);
+			}
+		} else {
+			++i;
+		}
+	}
+}
+
 #if 0
 string
 length2string (const int32_t frames, const float sample_rate)
diff --git a/libs/pbd/pbd/convert.h b/libs/pbd/pbd/convert.h
index 458e4aebe9..83cd285098 100644
--- a/libs/pbd/pbd/convert.h
+++ b/libs/pbd/pbd/convert.h
@@ -24,6 +24,7 @@
 #include <vector>
 #include <sstream>
 #include <iostream>
+#include <glibmm/ustring.h>
 
 namespace PBD {
 
@@ -32,6 +33,7 @@ std::string short_version (std::string, std::string::size_type target_length);
 int    atoi (const std::string&);
 double atof (const std::string&);
 void   url_decode (std::string&);
+void   url_decode (Glib::ustring&);
 
 // std::string length2string (const int32_t frames, const float sample_rate);
 std::string length2string (const int64_t frames, const double sample_rate);