/////////////////////////////////////////////////////////////////////////////
-// Name: hash.cpp
+// Name: src/common/hash.cpp
// Purpose: wxHashTable implementation
// Author: Julian Smart
// Modified by: VZ at 25.02.00: type safe hashes with WX_DECLARE_HASH()
// Created: 01/02/97
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
-// Licence: wxWidgets licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// headers
// ----------------------------------------------------------------------------
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "hash.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
#ifndef WX_PRECOMP
-#include "wx/list.h"
+ #include "wx/hash.h"
+ #include "wx/object.h"
#endif
-#include "wx/hash.h"
-
-#if wxUSE_OLD_HASH_TABLE
-
-#include <string.h>
-#include <stdarg.h>
-
-// ----------------------------------------------------------------------------
-// wxWin macros
-// ----------------------------------------------------------------------------
-
-IMPLEMENT_DYNAMIC_CLASS(wxHashTable, wxObject)
-
-// ============================================================================
-// implementation
-// ============================================================================
-
-// ----------------------------------------------------------------------------
-// wxHashTablleBase for working with "void *" data
-// ----------------------------------------------------------------------------
-
-wxHashTableBase::wxHashTableBase()
-{
- m_deleteContents = FALSE;
- m_hashTable = (wxListBase **)NULL;
- m_hashSize = 0;
- m_count = 0;
- m_keyType = wxKEY_NONE;
-}
-
-void wxHashTableBase::Create(wxKeyType keyType, size_t size)
-{
- Destroy();
-
- m_hashSize = size;
- m_keyType = keyType;
- m_hashTable = new wxListBase *[size];
- for ( size_t n = 0; n < m_hashSize; n++ )
- {
- m_hashTable[n] = (wxListBase *) NULL;
- }
-}
-
-void wxHashTableBase::Destroy()
-{
- if ( m_hashTable )
- {
- for ( size_t n = 0; n < m_hashSize; n++ )
- {
- delete m_hashTable[n];
- }
-
- delete [] m_hashTable;
-
- m_hashTable = (wxListBase **)NULL;
-
- m_count = 0;
- }
-}
-
-void wxHashTableBase::DeleteContents(bool flag)
-{
- m_deleteContents = flag;
- for ( size_t n = 0; n < m_hashSize; n++ )
- {
- if ( m_hashTable[n] )
- {
- m_hashTable[n]->DeleteContents(flag);
- }
- }
-}
-
-wxNodeBase *wxHashTableBase::GetNode(long key, long value) const
-{
- size_t slot = (size_t)abs((int)(key % (long)m_hashSize));
-
- wxNodeBase *node;
- if ( m_hashTable[slot] )
- {
- node = m_hashTable[slot]->Find(wxListKey(value));
- }
- else
- {
- node = (wxNodeBase *)NULL;
- }
-
- return node;
-}
-
-#if WXWIN_COMPATIBILITY_2_4
-
-// ----------------------------------------------------------------------------
-// wxHashTableLong
-// ----------------------------------------------------------------------------
-
-wxHashTableLong::~wxHashTableLong()
-{
- Destroy();
-}
-
-void wxHashTableLong::Init(size_t size)
-{
- m_hashSize = size;
- m_values = new wxArrayLong *[size];
- m_keys = new wxArrayLong *[size];
-
- for ( size_t n = 0; n < m_hashSize; n++ )
- {
- m_values[n] =
- m_keys[n] = (wxArrayLong *)NULL;
- }
-
- m_count = 0;
-}
-
-void wxHashTableLong::Create(size_t size)
-{
- Init(size);
-}
-
-void wxHashTableLong::Destroy()
-{
- for ( size_t n = 0; n < m_hashSize; n++ )
- {
- delete m_values[n];
- delete m_keys[n];
- }
-
- delete [] m_values;
- delete [] m_keys;
- m_hashSize = 0;
- m_count = 0;
-}
-
-void wxHashTableLong::Put(long key, long value)
-{
- wxCHECK_RET( m_hashSize, _T("must call Create() first") );
-
- size_t slot = (size_t)abs((int)(key % (long)m_hashSize));
-
- if ( !m_keys[slot] )
- {
- m_keys[slot] = new wxArrayLong;
- m_values[slot] = new wxArrayLong;
- }
-
- m_keys[slot]->Add(key);
- m_values[slot]->Add(value);
-
- m_count++;
-}
-
-long wxHashTableLong::Get(long key) const
-{
- wxCHECK_MSG( m_hashSize, wxNOT_FOUND, _T("must call Create() first") );
-
- size_t slot = (size_t)abs((int)(key % (long)m_hashSize));
-
- wxArrayLong *keys = m_keys[slot];
- if ( keys )
- {
- size_t count = keys->GetCount();
- for ( size_t n = 0; n < count; n++ )
- {
- if ( keys->Item(n) == key )
- {
- return m_values[slot]->Item(n);
- }
- }
- }
-
- return wxNOT_FOUND;
-}
-
-long wxHashTableLong::Delete(long key)
-{
- wxCHECK_MSG( m_hashSize, wxNOT_FOUND, _T("must call Create() first") );
-
- size_t slot = (size_t)abs((int)(key % (long)m_hashSize));
-
- wxArrayLong *keys = m_keys[slot];
- if ( keys )
- {
- size_t count = keys->GetCount();
- for ( size_t n = 0; n < count; n++ )
- {
- if ( keys->Item(n) == key )
- {
- long val = m_values[slot]->Item(n);
-
- keys->RemoveAt(n);
- m_values[slot]->RemoveAt(n);
-
- m_count--;
-
- return val;
- }
- }
- }
-
- return wxNOT_FOUND;
-}
-
-// ----------------------------------------------------------------------------
-// wxStringHashTable: more efficient than storing strings in a list
-// ----------------------------------------------------------------------------
-
-wxStringHashTable::wxStringHashTable(size_t sizeTable)
-{
- m_keys = new wxArrayLong *[sizeTable];
- m_values = new wxArrayString *[sizeTable];
-
- m_hashSize = sizeTable;
- for ( size_t n = 0; n < m_hashSize; n++ )
- {
- m_values[n] = (wxArrayString *)NULL;
- m_keys[n] = (wxArrayLong *)NULL;
- }
-}
-
-wxStringHashTable::~wxStringHashTable()
-{
- Destroy();
-}
-
-void wxStringHashTable::Destroy()
-{
- for ( size_t n = 0; n < m_hashSize; n++ )
- {
- delete m_values[n];
- delete m_keys[n];
- }
-
- delete [] m_values;
- delete [] m_keys;
- m_hashSize = 0;
-}
-
-void wxStringHashTable::Put(long key, const wxString& value)
-{
- wxCHECK_RET( m_hashSize, _T("must call Create() first") );
-
- size_t slot = (size_t)abs((int)(key % (long)m_hashSize));
-
- if ( !m_keys[slot] )
- {
- m_keys[slot] = new wxArrayLong;
- m_values[slot] = new wxArrayString;
- }
-
- m_keys[slot]->Add(key);
- m_values[slot]->Add(value);
-}
-
-wxString wxStringHashTable::Get(long key, bool *wasFound) const
-{
- wxCHECK_MSG( m_hashSize, _T(""), _T("must call Create() first") );
-
- size_t slot = (size_t)abs((int)(key % (long)m_hashSize));
-
- wxArrayLong *keys = m_keys[slot];
- if ( keys )
- {
- size_t count = keys->GetCount();
- for ( size_t n = 0; n < count; n++ )
- {
- if ( keys->Item(n) == key )
- {
- if ( wasFound )
- *wasFound = TRUE;
-
- return m_values[slot]->Item(n);
- }
- }
- }
-
- if ( wasFound )
- *wasFound = FALSE;
-
- return _T("");
-}
-
-bool wxStringHashTable::Delete(long key) const
-{
- wxCHECK_MSG( m_hashSize, FALSE, _T("must call Create() first") );
-
- size_t slot = (size_t)abs((int)(key % (long)m_hashSize));
-
- wxArrayLong *keys = m_keys[slot];
- if ( keys )
- {
- size_t count = keys->GetCount();
- for ( size_t n = 0; n < count; n++ )
- {
- if ( keys->Item(n) == key )
- {
- keys->RemoveAt(n);
- m_values[slot]->RemoveAt(n);
- return TRUE;
- }
- }
- }
-
- return FALSE;
-}
-
-#endif // WXWIN_COMPATIBILITY_2_4
-
-// ----------------------------------------------------------------------------
-// old not type safe wxHashTable
-// ----------------------------------------------------------------------------
-
-wxHashTable::wxHashTable (int the_key_type, int size)
-{
- n = 0;
- hash_table = (wxList**) NULL;
- Create(the_key_type, size);
- m_count = 0;
- m_deleteContents = FALSE;
-/*
- n = size;
- current_position = -1;
- current_node = (wxNode *) NULL;
-
- key_type = the_key_type;
- hash_table = new wxList *[size];
- int i;
- for (i = 0; i < size; i++)
- hash_table[i] = (wxList *) NULL;
-*/
-}
-
-wxHashTable::~wxHashTable ()
-{
- Destroy();
-}
-
-void wxHashTable::Destroy()
-{
- if (!hash_table) return;
- int i;
- for (i = 0; i < n; i++)
- if (hash_table[i])
- delete hash_table[i];
- delete[] hash_table;
- hash_table = NULL;
-}
-
-bool wxHashTable::Create(int the_key_type, int size)
-{
- Destroy();
-
- n = size;
- current_position = -1;
- current_node = (wxNode *) NULL;
-
- key_type = the_key_type;
- hash_table = new wxList *[size];
- int i;
- for (i = 0; i < size; i++)
- hash_table[i] = (wxList *) NULL;
- return TRUE;
-}
-
-
-void wxHashTable::DoCopy(const wxHashTable& table)
-{
- n = table.n;
- m_count = table.m_count;
- current_position = table.current_position;
- current_node = NULL; // doesn't matter - Next() will reconstruct it
- key_type = table.key_type;
-
- hash_table = new wxList *[n];
- for (int i = 0; i < n; i++) {
- if (table.hash_table[i] == NULL)
- hash_table[i] = NULL;
- else {
- hash_table[i] = new wxList(key_type);
- *(hash_table[i]) = *(table.hash_table[i]);
- }
- }
-}
-
-void wxHashTable::Put (long key, long value, wxObject * object)
-{
- // Should NEVER be
- long k = (long) key;
-
- int position = (int) (k % n);
- if (position < 0) position = -position;
-
- if (!hash_table[position])
- {
- hash_table[position] = new wxList (wxKEY_INTEGER);
- if (m_deleteContents) hash_table[position]->DeleteContents(TRUE);
- }
-
- hash_table[position]->Append (value, object);
- m_count++;
-}
-
-void wxHashTable::Put (long key, const wxChar *value, wxObject * object)
-{
- // Should NEVER be
- long k = (long) key;
-
- int position = (int) (k % n);
- if (position < 0) position = -position;
-
- if (!hash_table[position])
- {
- hash_table[position] = new wxList (wxKEY_STRING);
- if (m_deleteContents) hash_table[position]->DeleteContents(TRUE);
- }
-
- hash_table[position]->Append (value, object);
- m_count++;
-}
-
-void wxHashTable::Put (long key, wxObject * object)
-{
- // Should NEVER be
- long k = (long) key;
-
- int position = (int) (k % n);
- if (position < 0) position = -position;
-
- if (!hash_table[position])
- {
- hash_table[position] = new wxList (wxKEY_INTEGER);
- if (m_deleteContents) hash_table[position]->DeleteContents(TRUE);
- }
-
- hash_table[position]->Append (k, object);
- m_count++;
-}
-
-void wxHashTable::Put (const wxChar *key, wxObject * object)
-{
- int position = (int) (MakeKey (key) % n);
- if (position < 0) position = -position;
-
- if (!hash_table[position])
- {
- hash_table[position] = new wxList (wxKEY_STRING);
- if (m_deleteContents) hash_table[position]->DeleteContents(TRUE);
- }
-
- hash_table[position]->Append (key, object);
- m_count++;
-}
-
-wxObject *wxHashTable::Get (long key, long value) const
-{
- // Should NEVER be
- long k = (long) key;
-
- int position = (int) (k % n);
- if (position < 0) position = -position;
-
- if (!hash_table[position])
- return (wxObject *) NULL;
- else
- {
- wxNode *node = hash_table[position]->Find (value);
- if (node)
- return node->GetData ();
- else
- return (wxObject *) NULL;
- }
-}
-
-wxObject *wxHashTable::Get (long key, const wxChar *value) const
-{
- // Should NEVER be
- long k = (long) key;
-
- int position = (int) (k % n);
- if (position < 0) position = -position;
-
- if (!hash_table[position])
- return (wxObject *) NULL;
- else
- {
- wxNode *node = hash_table[position]->Find (value);
- if (node)
- return node->GetData ();
- else
- return (wxObject *) NULL;
- }
-}
-
-wxObject *wxHashTable::Get (long key) const
-{
- // Should NEVER be
- long k = (long) key;
-
- int position = (int) (k % n);
- if (position < 0) position = -position;
-
- if (!hash_table[position])
- return (wxObject *) NULL;
- else
- {
- wxNode *node = hash_table[position]->Find (k);
- return node ? node->GetData () : (wxObject*)NULL;
- }
-}
-
-wxObject *wxHashTable::Get (const wxChar *key) const
-{
- int position = (int) (MakeKey (key) % n);
- if (position < 0) position = -position;
-
- if (!hash_table[position])
- return (wxObject *) NULL;
- else
- {
- wxNode *node = hash_table[position]->Find (key);
- return node ? node->GetData () : (wxObject*)NULL;
- }
-}
-
-wxObject *wxHashTable::Delete (long key)
-{
- // Should NEVER be
- long k = (long) key;
-
- int position = (int) (k % n);
- if (position < 0) position = -position;
-
- if (!hash_table[position])
- return (wxObject *) NULL;
- else
- {
- wxNode *node = hash_table[position]->Find (k);
- if (node)
- {
- wxObject *data = node->GetData ();
- delete node;
- m_count--;
- return data;
- }
- else
- return (wxObject *) NULL;
- }
-}
-
-wxObject *wxHashTable::Delete (const wxChar *key)
-{
- int position = (int) (MakeKey (key) % n);
- if (position < 0) position = -position;
-
- if (!hash_table[position])
- return (wxObject *) NULL;
- else
- {
- wxNode *node = hash_table[position]->Find (key);
- if (node)
- {
- wxObject *data = node->GetData ();
- delete node;
- m_count--;
- return data;
- }
- else
- return (wxObject *) NULL;
- }
-}
-
-wxObject *wxHashTable::Delete (long key, int value)
-{
- // Should NEVER be
- long k = (long) key;
-
- int position = (int) (k % n);
- if (position < 0) position = -position;
-
- if (!hash_table[position])
- return (wxObject *) NULL;
- else
- {
- wxNode *node = hash_table[position]->Find (value);
- if (node)
- {
- wxObject *data = node->GetData ();
- delete node;
- m_count--;
- return data;
- }
- else
- return (wxObject *) NULL;
- }
-}
-
-wxObject *wxHashTable::Delete (long key, const wxChar *value)
-{
- int position = (int) (key % n);
- if (position < 0) position = -position;
-
- if (!hash_table[position])
- return (wxObject *) NULL;
- else
- {
- wxNode *node = hash_table[position]->Find (value);
- if (node)
- {
- wxObject *data = node->GetData ();
- delete node;
- m_count--;
- return data;
- }
- else
- return (wxObject *) NULL;
- }
-}
-
-long wxHashTable::MakeKey (const wxChar *string) const
-{
- long int_key = 0;
-
- while (*string)
- int_key += (wxUChar) *string++;
-
- return int_key;
-}
-
-void wxHashTable::BeginFind ()
-{
- current_position = -1;
- current_node = (wxNode *) NULL;
-}
-
-wxHashTable::Node* wxHashTable::Next ()
-{
- wxNode *found = (wxNode *) NULL;
- bool end = FALSE;
- while (!end && !found)
- {
- if (!current_node)
- {
- current_position++;
- if (current_position >= n)
- {
- current_position = -1;
- current_node = (wxNode *) NULL;
- end = TRUE;
- }
- else
- {
- if (hash_table[current_position])
- {
- current_node = hash_table[current_position]->GetFirst ();
- found = current_node;
- }
- }
- }
- else
- {
- current_node = current_node->GetNext ();
- found = current_node;
- }
- }
- return found;
-}
-
-void wxHashTable::DeleteContents (bool flag)
-{
- int i;
- m_deleteContents = flag;
- for (i = 0; i < n; i++)
- {
- if (hash_table[i])
- hash_table[i]->DeleteContents (flag);
- }
-}
-
-void wxHashTable::Clear ()
-{
- int i;
- if (hash_table)
- {
- for (i = 0; i < n; i++)
- {
- if (hash_table[i])
- hash_table[i]->Clear ();
- }
- }
- m_count = 0;
-}
-
-#else // if !wxUSE_OLD_HASH_TABLE
-
wxHashTableBase_Node::wxHashTableBase_Node( long key, void* value,
wxHashTableBase* table )
: m_value( value ), m_hashPtr( table )
m_key.integer = key;
}
-wxHashTableBase_Node::wxHashTableBase_Node( const wxChar* key, void* value,
+wxHashTableBase_Node::wxHashTableBase_Node( const wxString& key, void* value,
wxHashTableBase* table )
: m_value( value ), m_hashPtr( table )
{
- m_key.string = wxStrcpy( new wxChar[wxStrlen( key ) + 1], key );
+ m_key.string = new wxString(key);
}
wxHashTableBase_Node::~wxHashTableBase_Node()
{
size_t bucket = ( m_keyType == wxKEY_INTEGER ?
node->m_key.integer :
- MakeKey( node->m_key.string ) ) % m_size;
+ MakeKey( *node->m_key.string ) ) % m_size;
if( node->GetNext() == node )
{
Node* prev = start;
for( curr = prev->GetNext(); curr != node;
- prev = curr, curr = curr->GetNext() );
+ prev = curr, curr = curr->GetNext() ) ;
DoUnlinkNode( bucket, node, prev );
}
node->m_hashPtr = NULL;
if( m_keyType == wxKEY_STRING )
- delete[] node->m_key.string;
+ delete node->m_key.string;
if( m_deleteContents )
DoDeleteContents( node );
}
{
Clear();
- delete[] m_table;
-
- m_table = NULL;
+ wxDELETEA(m_table);
m_size = 0;
}
DoInsertNode( bucket, node );
}
-void wxHashTableBase::DoPut( const wxChar* key, long hash, void* data )
+void wxHashTableBase::DoPut( const wxString& key, long hash, void* data )
{
wxASSERT( m_keyType == wxKEY_STRING );
return NULL;
}
-void* wxHashTableBase::DoGet( const wxChar* key, long hash ) const
+void* wxHashTableBase::DoGet( const wxString& key, long hash ) const
{
wxASSERT( m_keyType == wxKEY_STRING );
do
{
- if( wxStrcmp( curr->m_key.string, key ) == 0 )
+ if( *curr->m_key.string == key )
return curr->m_value;
curr = curr->GetNext();
return NULL;
}
-void* wxHashTableBase::DoDelete( const wxChar* key, long hash )
+void* wxHashTableBase::DoDelete( const wxString& key, long hash )
{
wxASSERT( m_keyType == wxKEY_STRING );
do
{
- if( wxStrcmp( curr->m_key.string, key ) == 0 )
+ if( *curr->m_key.string == key )
{
void* retval = curr->m_value;
curr->m_value = NULL;
return NULL;
}
-long wxHashTableBase::MakeKey( const wxChar *str )
+long wxHashTableBase::MakeKey( const wxString& str )
{
long int_key = 0;
- while( *str )
- int_key += (wxUChar)*str++;
+ const wxStringCharType *p = str.wx_str();
+ while( *p )
+ int_key += *p++;
return int_key;
}
-//
+// ----------------------------------------------------------------------------
+// wxHashTable
+// ----------------------------------------------------------------------------
wxHashTable::wxHashTable( const wxHashTable& table )
+ : wxHashTableBase()
{
DoCopy( table );
}
{
Create( m_keyType, m_size );
- wxASSERT( false );
+ wxFAIL;
}
void wxHashTable::DoDeleteContents( wxHashTableBase_Node* node )
return m_curr;
}
-#endif // !wxUSE_OLD_HASH_TABLE
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