support for iPhone callbacks

[wxWidgets.git] / interface / wx / buffer.h

diff --git a/interface/wx/buffer.h b/interface/wx/buffer.h
index 3d5287b6c7270730e13ade1ffe04a03162ec5ca3..724cadc11588dfb54456d66be11e1eae6892a7a7 100644 (file)
--- a/interface/wx/buffer.h
+++ b/interface/wx/buffer.h
@@ -3,7 +3,7 @@
 // Purpose:     interface of wxMemoryBuffer
 // Author:      wxWidgets team
 // RCS-ID:      $Id$
-// Licence:     wxWindows license
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 
@@ -74,7 +74,7 @@ public:
         @param len If specified, length of the string, otherwise the string
                    is considered to be NUL-terminated.
      */
-    static const wxScopedCharTypeBuffer CreateOwned(const CharType *str, size_t len = wxNO_LEN);
+    static const wxScopedCharTypeBuffer CreateOwned(CharType *str, size_t len = wxNO_LEN);
 
     /**
         Copy constructor.
@@ -178,7 +178,7 @@ public:
     wxCharTypeBuffer(const wxScopedCharTypeBuffer<T>& src);
 
     /**
-        Assigns @a str to this buffer and takes ownership of it (i.e. the
+        Assigns @a str to this buffer and takes ownership of it (i.e.\ the
         buffer becomes "owned").
      */
     wxCharTypeBuffer& operator=(const CharType *str);
@@ -200,8 +200,27 @@ public:
 
         Can only be called on buffers that don't share data with another
         buffer (i.e. reference count of the data is 1).
+
+        @see shrink()
      */
     bool extend(size_t len);
+
+    /**
+        Shrinks the buffer to have size @a len and NUL-terminates the string
+        at this length.
+
+        Can only be called on buffers that don't share data with another
+        buffer (i.e. reference count of the data is 1).
+
+        @param len Length to shrink to. Must not be larger than current length.
+
+        @note The string is not reallocated to take less memory.
+
+        @since 2.9.0
+
+        @see extend()
+     */
+    bool shrink(size_t len);
 };
 
 /**
@@ -268,9 +287,9 @@ public:
         Create a new buffer.
 
         @param size
-            size of the new buffer.
+            size of the new buffer, 1KiB by default.
     */
-    wxMemoryBuffer(size_t size = DefBufSize);
+    wxMemoryBuffer(size_t size = 1024);
 
     /**
         Append a single byte to the buffer.
@@ -280,6 +299,27 @@ public:
     */
     void AppendByte(char data);
 
+    /**
+        Single call to append a data block to the buffer.
+
+        @param data
+            Pointer to block to append to the buffer.
+        @param len
+            Length of data to append.
+    */
+    void AppendData(const void *data, size_t len);
+
+    /**
+        Clear the buffer contents.
+
+        The buffer won't contain any data after this method is called.
+
+        @see IsEmpty()
+
+        @since 2.9.4
+     */
+    void Clear();
+
     /**
         Ensure that the buffer is big enough and return a pointer to the start
         of the empty space in the buffer. This pointer can be used to directly
@@ -314,6 +354,15 @@ public:
     */
     void* GetWriteBuf(size_t sizeNeeded);
 
+    /**
+        Returns true if the buffer contains no data.
+
+        @see Clear()
+
+        @since 2.9.4
+     */
+    bool IsEmpty() const;
+
     /**
         Ensures the buffer has at least @a size bytes available.
     */