Add compatibility to load the recent list of paths from the recent list of files from old aseprite.ini files.

src/base/recent_items.h

@@ -24,6 +24,7 @@ public:
   const_iterator begin() { return m_items.begin(); }
   const_iterator end() { return m_items.end(); }
 
+  bool empty() const { return m_items.empty(); }
   size_t size() const { return m_items.size(); }
   size_t limit() const { return m_limit; }
 

src/recent_files.cpp

@@ -26,6 +26,7 @@
 
 #include <cstdio>
 #include <cstring>
+#include <set>
 
 RecentFiles::RecentFiles()
   : m_files(16)
@@ -48,6 +49,25 @@ RecentFiles::RecentFiles()
     if (path && *path)
       m_paths.addItem(path);
   }
+
+  // Create recent list of paths from filenames (for backward
+  // compatibility with previous versions of ASEPRITE).
+  if (m_paths.empty()) {
+    std::set<std::string> included;
+
+    // For each recent file...
+    const_iterator it = files_begin();
+    const_iterator end = files_end();
+    for (; it != end; ++it) {
+      base::string path = base::get_file_path(*it);
+
+      // Check if the path was not already included in the list
+      if (included.find(path) == included.end()) {
+        included.insert(path);
+        m_paths.addItem(path);
+      }
+    }
+  }
 }
 
 RecentFiles::~RecentFiles()

src/recent_files.h

@@ -20,13 +20,12 @@
 #define RECENT_FILES_H_INCLUDED
 
 #include "base/recent_items.h"
-
-#include <string>
+#include "base/string.h"
 
 class RecentFiles
 {
 public:
-  typedef base::RecentItems<std::string> List;
+  typedef base::RecentItems<base::string> List;
   typedef List::iterator iterator;
   typedef List::const_iterator const_iterator;