Use kCGBlendModeExclusion for wxCOMPOSITION_XOR operation.

[wxWidgets.git] / include / wx / fswatcher.h

diff --git a/include/wx/fswatcher.h b/include/wx/fswatcher.h
index 959bcf8a8ac2bac5e8d8868a580687c6102dde2f..30656714ef6683b92d126f81106a436a8b6b8408 100644 (file)
--- a/include/wx/fswatcher.h
+++ b/include/wx/fswatcher.h
@@ -196,12 +196,16 @@ class wxFSWatchInfo
 {
 public:
     wxFSWatchInfo() :
-        m_events(-1), m_type(wxFSWPath_None)
+        m_events(-1), m_type(wxFSWPath_None), m_refcount(-1)
     {
     }
 
-    wxFSWatchInfo(const wxString& path, int events, wxFSWPathType type) :
-        m_path(path), m_events(events), m_type(type)
+    wxFSWatchInfo(const wxString& path,
+                  int events,
+                  wxFSWPathType type,
+                  const wxString& filespec = wxString()) :
+        m_path(path), m_filespec(filespec), m_events(events), m_type(type),
+        m_refcount(1)
     {
     }
 
@@ -210,6 +214,8 @@ public:
         return m_path;
     }
 
+    const wxString& GetFilespec() const { return m_filespec; }
+
     int GetFlags() const
     {
         return m_events;
@@ -220,10 +226,27 @@ public:
         return m_type;
     }
 
+    // Reference counting of watch entries is used to avoid watching the same
+    // file system path multiple times (this can happen even accidentally, e.g.
+    // when you have a recursive watch and then decide to watch some file or
+    // directory under it separately).
+    int IncRef()
+    {
+        return ++m_refcount;
+    }
+
+    int DecRef()
+    {
+        wxASSERT_MSG( m_refcount > 0, wxS("Trying to decrement a zero count") );
+        return --m_refcount;
+    }
+
 protected:
     wxString m_path;
+    wxString m_filespec;      // For tree watches, holds any filespec to apply
     int m_events;
     wxFSWPathType m_type;
+    int m_refcount;
 };
 
 WX_DECLARE_STRING_HASH_MAP(wxFSWatchInfo, wxFSWatchInfoMap);
@@ -260,7 +283,7 @@ public:
      * of particular type.
      */
     virtual bool AddTree(const wxFileName& path, int events = wxFSW_EVENT_ALL,
-                         const wxString& filter = wxEmptyString);
+                         const wxString& filespec = wxEmptyString);
 
     /**
      * Removes path from the list of watched paths.
@@ -305,6 +328,14 @@ public:
             m_owner = handler;
     }
 
+
+    // This is a semi-private function used by wxWidgets itself only.
+    //
+    // Delegates the real work of adding the path to wxFSWatcherImpl::Add() and
+    // updates m_watches if the new path was successfully added.
+    bool AddAny(const wxFileName& path, int events, wxFSWPathType type,
+                const wxString& filespec = wxString());
+
 protected:
 
     static wxString GetCanonicalPath(const wxFileName& path)
@@ -320,10 +351,6 @@ protected:
         return path_copy.GetFullPath();
     }
 
-    // Delegates the real work of adding the path to wxFSWatcherImpl::Add() and
-    // updates m_watches if the new path was successfully added.
-    bool DoAdd(const wxFileName& path, int events, wxFSWPathType type);
-
 
     wxFSWatchInfoMap m_watches;        // path=>wxFSWatchInfo map
     wxFSWatcherImpl* m_service;     // file system events service