compilation fix

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

diff --git a/include/wx/hash.h b/include/wx/hash.h
index cf10d040c8abef6f38db0b73b08d754fbcd2da2c..5ac029b01e4e50bba0c9c9a15c9a922579bbeb94 100644 (file)
--- a/include/wx/hash.h
+++ b/include/wx/hash.h
@@ -12,7 +12,7 @@
 #ifndef _WX_HASH_H__
 #define _WX_HASH_H__
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(__APPLE__)
 #pragma interface "hash.h"
 #endif
 
@@ -34,7 +34,7 @@
 // pointers to objects
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxHashTableBase : public wxObject
+class WXDLLIMPEXP_BASE wxHashTableBase : public wxObject
 {
 public:
     wxHashTableBase();
@@ -69,17 +69,20 @@ protected:
 
 private:
     // no copy ctor/assignment operator (yet)
-    DECLARE_NO_COPY_CLASS(wxHashTableBase);
+    DECLARE_NO_COPY_CLASS(wxHashTableBase)
 };
 
+#if WXWIN_COMPATIBILITY_2_4
+
 // ----------------------------------------------------------------------------
 // a hash table which stores longs
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxHashTableLong : public wxObject
+class WXDLLIMPEXP_BASE wxHashTableLong : public wxObject
 {
 public:
-    wxHashTableLong(size_t size = wxHASH_SIZE_DEFAULT) { Init(size); }
+    wxHashTableLong(size_t size = wxHASH_SIZE_DEFAULT)
+        { Init(size); }
     virtual ~wxHashTableLong();
 
     void Create(size_t size = wxHASH_SIZE_DEFAULT);
@@ -106,14 +109,49 @@ private:
     size_t m_count;
 
     // not implemented yet
-    DECLARE_NO_COPY_CLASS(wxHashTableLong);
+    DECLARE_NO_COPY_CLASS(wxHashTableLong)
 };
 
+// ----------------------------------------------------------------------------
+// wxStringHashTable: a hash table which indexes strings with longs
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxStringHashTable : public wxObject
+{
+public:
+    wxStringHashTable(size_t sizeTable = wxHASH_SIZE_DEFAULT);
+    virtual ~wxStringHashTable();
+
+    // add a string associated with this key to the table
+    void Put(long key, const wxString& value);
+
+    // get the string from the key: if not found, an empty string is returned
+    // and the wasFound is set to FALSE if not NULL
+    wxString Get(long key, bool *wasFound = NULL) const;
+
+    // remove the item, returning TRUE if the item was found and deleted
+    bool Delete(long key) const;
+
+    // clean up
+    void Destroy();
+
+private:
+    wxArrayLong **m_keys;
+    wxArrayString **m_values;
+
+    // the size of array above
+    size_t m_hashSize;
+
+    DECLARE_NO_COPY_CLASS(wxStringHashTable)
+};
+
+#endif
+
 // ----------------------------------------------------------------------------
 // for compatibility only
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxHashTable : public wxObject
+class WXDLLIMPEXP_BASE wxHashTable : public wxObject
 {
 public:
     int n;
@@ -128,7 +166,8 @@ public:
     ~wxHashTable();
 
     // copy ctor and assignment operator
-    wxHashTable(const wxHashTable& table) { DoCopy(table); }
+    wxHashTable(const wxHashTable& table) : wxObject()
+        { DoCopy(table); }
     wxHashTable& operator=(const wxHashTable& table)
         { Clear(); DoCopy(table); return *this; }
 
@@ -200,8 +239,8 @@ private:
 
 // defines a new type safe hash table which stores the elements of type eltype
 // in lists of class listclass
-#define WX_DECLARE_HASH(eltype, listclass, hashclass)                          \
-    class WXDLLEXPORT hashclass : public wxHashTableBase                       \
+#define _WX_DECLARE_HASH(eltype, listclass, hashclass, classexp)               \
+    classexp hashclass : public wxHashTableBase                                \
     {                                                                          \
     public:                                                                    \
         hashclass(wxKeyType keyType = wxKEY_INTEGER,                           \
@@ -244,7 +283,7 @@ private:
     protected:                                                                 \
         void DoPut(long key, long value, eltype *data)                         \
         {                                                                      \
-            size_t slot = (size_t)abs(key % m_hashSize);                       \
+            size_t slot = (size_t)abs((int)(key % (long)m_hashSize));          \
                                                                                \
             if ( !m_hashTable[slot] )                                          \
             {                                                                  \
@@ -258,5 +297,35 @@ private:
         }                                                                      \
     }
 
+// this macro is to be used in the user code
+#define WX_DECLARE_HASH(el, list, hash) \
+    _WX_DECLARE_HASH(el, list, hash, class)
+
+// and this one does exactly the same thing but should be used inside the
+// library
+#define WX_DECLARE_EXPORTED_HASH(el, list, hash)  \
+    _WX_DECLARE_HASH(el, list, hash, class WXDLLEXPORT)
+
+#define WX_DECLARE_USER_EXPORTED_HASH(el, list, hash, usergoo)  \
+    _WX_DECLARE_HASH(el, list, hash, class usergoo)
+
+// delete all hash elements
+//
+// NB: the class declaration of the hash elements must be visible from the
+//     place where you use this macro, otherwise the proper destructor may not
+//     be called (a decent compiler should give a warning about it, but don't
+//     count on it)!
+#define WX_CLEAR_HASH_TABLE(array)                                           \
+    {                                                                        \
+        (array).BeginFind();                                                 \
+        wxNode* it = (array).Next();                                         \
+        while( it )                                                          \
+        {                                                                    \
+            delete it->GetData();                                            \
+            it = (array).Next();                                             \
+        }                                                                    \
+        (array).Clear();                                                     \
+    }
+
 #endif
     // _WX_HASH_H__