extending calculation of visible region

[wxWidgets.git] / src / msw / registry.cpp

diff --git a/src/msw/registry.cpp b/src/msw/registry.cpp
index 4d3dc28b9b10f47c45c4031709ba32ede17dcfdb..72515030b03c476f2f708a74b1183a5aa8a6c992 100644 (file)
--- a/src/msw/registry.cpp
+++ b/src/msw/registry.cpp
@@ -6,13 +6,13 @@
 // Created:     03.04.98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
 // Created:     03.04.98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>

-// Licence:     wxWindows license
+// Licence:     wxWindows licence

 // TODO:        - parsing of registry key names
 //              - support of other (than REG_SZ/REG_DWORD) registry types
 //              - add high level functions (RegisterOleServer, ...)
 ///////////////////////////////////////////////////////////////////////////////
 
 // TODO:        - parsing of registry key names
 //              - support of other (than REG_SZ/REG_DWORD) registry types
 //              - add high level functions (RegisterOleServer, ...)
 ///////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

 #pragma implementation "registry.h"
 #endif
 
 #pragma implementation "registry.h"
 #endif
 


@@ -36,7 +36,13 @@
 #define   WIN32_LEAN_AND_MEAN
 */
 
 #define   WIN32_LEAN_AND_MEAN
 */
 

-#include  <windows.h>
+#include  "wx/msw/wrapwin.h"
+
+#ifdef __WXWINCE__
+#include "wx/msw/private.h"
+#include <winbase.h>
+#include <winreg.h>
+#endif

 
 // other std headers
 #include  <stdlib.h>      // for _MAX_PATH
 
 // other std headers
 #include  <stdlib.h>      // for _MAX_PATH


@@ -71,10 +77,12 @@ aStdKeys[] =
   { HKEY_CURRENT_USER,      wxT("HKEY_CURRENT_USER"),      wxT("HKCU") },
   { HKEY_LOCAL_MACHINE,     wxT("HKEY_LOCAL_MACHINE"),     wxT("HKLM") },
   { HKEY_USERS,             wxT("HKEY_USERS"),             wxT("HKU")  }, // short name?
   { HKEY_CURRENT_USER,      wxT("HKEY_CURRENT_USER"),      wxT("HKCU") },
   { HKEY_LOCAL_MACHINE,     wxT("HKEY_LOCAL_MACHINE"),     wxT("HKLM") },
   { HKEY_USERS,             wxT("HKEY_USERS"),             wxT("HKU")  }, // short name?

+#ifndef __WXWINCE__

   { HKEY_PERFORMANCE_DATA,  wxT("HKEY_PERFORMANCE_DATA"),  wxT("HKPD") },
   { HKEY_PERFORMANCE_DATA,  wxT("HKEY_PERFORMANCE_DATA"),  wxT("HKPD") },

-#if     WINVER >= 0x0400
+#endif
+#if WINVER >= 0x0400 && !defined(__WXWINCE__)

   { HKEY_CURRENT_CONFIG,    wxT("HKEY_CURRENT_CONFIG"),    wxT("HKCC") },
   { HKEY_CURRENT_CONFIG,    wxT("HKEY_CURRENT_CONFIG"),    wxT("HKCC") },

-#ifndef __GNUWIN32__
+#if !defined(__GNUWIN32__) && !defined(__WXWINCE__)

   { HKEY_DYN_DATA,          wxT("HKEY_DYN_DATA"),          wxT("HKDD") }, // short name?
 #endif  //GNUWIN32
 #endif  //WINVER >= 4.0
   { HKEY_DYN_DATA,          wxT("HKEY_DYN_DATA"),          wxT("HKDD") }, // short name?
 #endif  //GNUWIN32
 #endif  //WINVER >= 4.0


@@ -86,7 +94,7 @@ aStdKeys[] =
 
 // useful for Windows programmers: makes somewhat more clear all these zeroes
 // being passed to Windows APIs
 
 // useful for Windows programmers: makes somewhat more clear all these zeroes
 // being passed to Windows APIs

-#define   RESERVED        (NULL)
+#define   RESERVED        (0)

 
 // ----------------------------------------------------------------------------
 // macros
 
 // ----------------------------------------------------------------------------
 // macros


@@ -127,7 +135,7 @@ const size_t wxRegKey::nStdKeys = WXSIZEOF(aStdKeys);
 const wxChar *wxRegKey::GetStdKeyName(size_t key)
 {
   // return empty string if key is invalid
 const wxChar *wxRegKey::GetStdKeyName(size_t key)
 {
   // return empty string if key is invalid

-  wxCHECK_MSG( key < nStdKeys, wxT(""), wxT("invalid key in wxRegKey::GetStdKeyName") );
+  wxCHECK_MSG( key < nStdKeys, wxEmptyString, wxT("invalid key in wxRegKey::GetStdKeyName") );

 
   return aStdKeys[key].szName;
 }
 
   return aStdKeys[key].szName;
 }


@@ -135,7 +143,7 @@ const wxChar *wxRegKey::GetStdKeyName(size_t key)
 const wxChar *wxRegKey::GetStdKeyShortName(size_t key)
 {
   // return empty string if key is invalid
 const wxChar *wxRegKey::GetStdKeyShortName(size_t key)
 {
   // return empty string if key is invalid

-  wxCHECK( key < nStdKeys, wxT("") );
+  wxCHECK( key < nStdKeys, wxEmptyString );

 
   return aStdKeys[key].szShortName;
 }
 
   return aStdKeys[key].szShortName;
 }


@@ -313,7 +321,7 @@ bool wxRegKey::GetKeyInfo(size_t *pnSubKeys,
                           size_t *pnValues,
                           size_t *pnMaxValueLen) const
 {
                           size_t *pnValues,
                           size_t *pnMaxValueLen) const
 {

-#if defined(__WIN32__) && !defined(__TWIN32__)
+#if defined(__WIN32__)

 
     // old gcc headers incorrectly prototype RegQueryInfoKey()
 #if defined(__GNUWIN32_OLD__) && !defined(__CYGWIN10__)
 
     // old gcc headers incorrectly prototype RegQueryInfoKey()
 #if defined(__GNUWIN32_OLD__) && !defined(__CYGWIN10__)


@@ -366,38 +374,56 @@ bool wxRegKey::GetKeyInfo(size_t *pnSubKeys,
 // ----------------------------------------------------------------------------
 
 // opens key (it's not an error to call Open() on an already opened key)
 // ----------------------------------------------------------------------------
 
 // opens key (it's not an error to call Open() on an already opened key)

-bool wxRegKey::Open()
+bool wxRegKey::Open(AccessMode mode)

 {
 {

-  if ( IsOpened() )
-    return TRUE;
+    if ( IsOpened() )
+        return TRUE;
+
+    HKEY tmpKey;
+    m_dwLastError = ::RegOpenKeyEx
+                    (
+                        (HKEY) m_hRootKey,
+                        m_strKey,
+                        RESERVED,
+                        mode == Read ? KEY_READ : KEY_ALL_ACCESS,
+                        &tmpKey
+                    );
+
+    if ( m_dwLastError != ERROR_SUCCESS )
+    {
+        wxLogSysError(m_dwLastError, _("Can't open registry key '%s'"),
+                      GetName().c_str());
+        return FALSE;
+    }

 
 

-  HKEY tmpKey;
-  m_dwLastError = RegOpenKey((HKEY) m_hRootKey, m_strKey, &tmpKey);
-  if ( m_dwLastError != ERROR_SUCCESS ) {
-    wxLogSysError(m_dwLastError, _("Can't open registry key '%s'"),
-                  GetName().c_str());
-    return FALSE;
-  }
-  else
-  {

     m_hKey = (WXHKEY) tmpKey;
     return TRUE;
     m_hKey = (WXHKEY) tmpKey;
     return TRUE;

-  }

 }
 
 // creates key, failing if it exists and !bOkIfExists
 bool wxRegKey::Create(bool bOkIfExists)
 {
   // check for existence only if asked (i.e. order is important!)
 }
 
 // creates key, failing if it exists and !bOkIfExists
 bool wxRegKey::Create(bool bOkIfExists)
 {
   // check for existence only if asked (i.e. order is important!)

-  if ( !bOkIfExists && Exists() ) {
+  if ( !bOkIfExists && Exists() )

     return FALSE;
     return FALSE;

-  }

 
   if ( IsOpened() )
     return TRUE;
 
   HKEY tmpKey;
 
   if ( IsOpened() )
     return TRUE;
 
   HKEY tmpKey;

+#ifdef __WXWINCE__
+  DWORD disposition;
+  m_dwLastError = RegCreateKeyEx((HKEY) m_hRootKey, m_strKey,
+      NULL, // reserved
+      NULL, // class string
+      0,
+      0,
+      NULL,
+      &tmpKey,
+      &disposition);
+#else

   m_dwLastError = RegCreateKey((HKEY) m_hRootKey, m_strKey, &tmpKey);
   m_dwLastError = RegCreateKey((HKEY) m_hRootKey, m_strKey, &tmpKey);

+#endif

   if ( m_dwLastError != ERROR_SUCCESS ) {
     wxLogSysError(m_dwLastError, _("Can't create registry key '%s'"),
                   GetName().c_str());
   if ( m_dwLastError != ERROR_SUCCESS ) {
     wxLogSysError(m_dwLastError, _("Can't create registry key '%s'"),
                   GetName().c_str());


@@ -657,7 +683,9 @@ bool wxRegKey::DeleteSelf()
   Close();
 
   m_dwLastError = RegDeleteKey((HKEY) m_hRootKey, m_strKey);
   Close();
 
   m_dwLastError = RegDeleteKey((HKEY) m_hRootKey, m_strKey);

-  if ( m_dwLastError != ERROR_SUCCESS ) {
+  // deleting a key which doesn't exist is not considered an error
+  if ( m_dwLastError != ERROR_SUCCESS &&
+          m_dwLastError != ERROR_FILE_NOT_FOUND ) {

     wxLogSysError(m_dwLastError, _("Can't delete key '%s'"),
                   GetName().c_str());
     return FALSE;
     wxLogSysError(m_dwLastError, _("Can't delete key '%s'"),
                   GetName().c_str());
     return FALSE;


@@ -680,14 +708,17 @@ bool wxRegKey::DeleteValue(const wxChar *szValue)
   if ( !Open() )
     return FALSE;
 
   if ( !Open() )
     return FALSE;
 

-#if defined(__WIN32__) && !defined(__TWIN32__)
+#if defined(__WIN32__)

     m_dwLastError = RegDeleteValue((HKEY) m_hKey, WXSTRINGCAST szValue);
     m_dwLastError = RegDeleteValue((HKEY) m_hKey, WXSTRINGCAST szValue);

-    if ( m_dwLastError != ERROR_SUCCESS ) {
+
+    // deleting a value which doesn't exist is not considered an error
+    if ( (m_dwLastError != ERROR_SUCCESS) &&
+         (m_dwLastError != ERROR_FILE_NOT_FOUND) ) {

       wxLogSysError(m_dwLastError, _("Can't delete value '%s' from key '%s'"),
                     szValue, GetName().c_str());
       return FALSE;
     }
       wxLogSysError(m_dwLastError, _("Can't delete value '%s' from key '%s'"),
                     szValue, GetName().c_str());
       return FALSE;
     }

-  #else   //WIN16
+#else   //WIN16

     // named registry values don't exist in Win16 world
     wxASSERT( IsEmpty(szValue) );
 
     // named registry values don't exist in Win16 world
     wxASSERT( IsEmpty(szValue) );
 


@@ -698,7 +729,7 @@ bool wxRegKey::DeleteValue(const wxChar *szValue)
                     GetName().c_str());
       return FALSE;
     }
                     GetName().c_str());
       return FALSE;
     }

-  #endif  //WIN16/32
+#endif  //WIN16/32

 
   return TRUE;
 }
 
   return TRUE;
 }


@@ -788,10 +819,6 @@ wxRegKey::ValueType wxRegKey::GetValueType(const wxChar *szValue) const
 #ifdef  __WIN32__
 bool wxRegKey::SetValue(const wxChar *szValue, long lValue)
 {
 #ifdef  __WIN32__
 bool wxRegKey::SetValue(const wxChar *szValue, long lValue)
 {

-#ifdef __TWIN32__
-  wxFAIL_MSG("RegSetValueEx not implemented by TWIN32");
-  return FALSE;
-#else

   if ( CONST_CAST Open() ) {
     m_dwLastError = RegSetValueEx((HKEY) m_hKey, szValue, (DWORD) RESERVED, REG_DWORD,
                                   (RegString)&lValue, sizeof(lValue));
   if ( CONST_CAST Open() ) {
     m_dwLastError = RegSetValueEx((HKEY) m_hKey, szValue, (DWORD) RESERVED, REG_DWORD,
                                   (RegString)&lValue, sizeof(lValue));


@@ -802,7 +829,6 @@ bool wxRegKey::SetValue(const wxChar *szValue, long lValue)
   wxLogSysError(m_dwLastError, _("Can't set value of '%s'"),
                 GetFullName(this, szValue));
   return FALSE;
   wxLogSysError(m_dwLastError, _("Can't set value of '%s'"),
                 GetFullName(this, szValue));
   return FALSE;

-#endif

 }
 
 bool wxRegKey::QueryValue(const wxChar *szValue, long *plValue) const
 }
 
 bool wxRegKey::QueryValue(const wxChar *szValue, long *plValue) const


@@ -848,16 +874,15 @@ bool wxRegKey::QueryValue(const wxChar *szValue,
             strValue.Empty();
         }
         else {
             strValue.Empty();
         }
         else {

-            RegString pBuf = (RegString)strValue.GetWriteBuf(dwSize);

             m_dwLastError = RegQueryValueEx((HKEY) m_hKey,
                                             WXSTRINGCAST szValue,
                                             RESERVED,
                                             &dwType,
             m_dwLastError = RegQueryValueEx((HKEY) m_hKey,
                                             WXSTRINGCAST szValue,
                                             RESERVED,
                                             &dwType,

-                                            pBuf,
+                                            (RegString)(wxChar*)wxStringBuffer(strValue, dwSize),

                                             &dwSize);
                                             &dwSize);

-            strValue.UngetWriteBuf();

 
             // expand the var expansions in the string unless disabled
 
             // expand the var expansions in the string unless disabled

+#ifndef __WXWINCE__

             if ( (dwType == REG_EXPAND_SZ) && !raw )
             {
                 DWORD dwExpSize = ::ExpandEnvironmentStrings(strValue, NULL, 0);
             if ( (dwType == REG_EXPAND_SZ) && !raw )
             {
                 DWORD dwExpSize = ::ExpandEnvironmentStrings(strValue, NULL, 0);


@@ -868,10 +893,9 @@ bool wxRegKey::QueryValue(const wxChar *szValue,
                     ok = ::ExpandEnvironmentStrings
                            (
                             strValue,
                     ok = ::ExpandEnvironmentStrings
                            (
                             strValue,

-                            strExpValue.GetWriteBuf(dwExpSize),
+                            wxStringBuffer(strExpValue, dwExpSize),

                             dwExpSize
                            ) != 0;
                             dwExpSize
                            ) != 0;

-                    strExpValue.UngetWriteBuf();

                     strValue = strExpValue;
                 }
 
                     strValue = strExpValue;
                 }
 


@@ -880,6 +904,8 @@ bool wxRegKey::QueryValue(const wxChar *szValue,
                     wxLogLastError(_T("ExpandEnvironmentStrings"));
                 }
             }
                     wxLogLastError(_T("ExpandEnvironmentStrings"));
                 }
             }

+#endif
+            // __WXWINCE__

         }
 
         if ( m_dwLastError == ERROR_SUCCESS ) {
         }
 
         if ( m_dwLastError == ERROR_SUCCESS ) {


@@ -909,20 +935,20 @@ bool wxRegKey::QueryValue(const wxChar *szValue,
 bool wxRegKey::SetValue(const wxChar *szValue, const wxString& strValue)
 {
   if ( CONST_CAST Open() ) {
 bool wxRegKey::SetValue(const wxChar *szValue, const wxString& strValue)
 {
   if ( CONST_CAST Open() ) {

-#if defined( __WIN32__) && !defined(__TWIN32__)
+#if defined( __WIN32__)

       m_dwLastError = RegSetValueEx((HKEY) m_hKey, szValue, (DWORD) RESERVED, REG_SZ,
                                     (RegString)strValue.c_str(),
                                     (strValue.Len() + 1)*sizeof(wxChar));
       if ( m_dwLastError == ERROR_SUCCESS )
         return TRUE;
       m_dwLastError = RegSetValueEx((HKEY) m_hKey, szValue, (DWORD) RESERVED, REG_SZ,
                                     (RegString)strValue.c_str(),
                                     (strValue.Len() + 1)*sizeof(wxChar));
       if ( m_dwLastError == ERROR_SUCCESS )
         return TRUE;

-    #else   //WIN16
+#else   //WIN16

       // named registry values don't exist in Win16
       wxASSERT( IsEmpty(szValue) );
 
       m_dwLastError = RegSetValue((HKEY) m_hKey, NULL, REG_SZ, strValue, NULL);
       if ( m_dwLastError == ERROR_SUCCESS )
         return TRUE;
       // named registry values don't exist in Win16
       wxASSERT( IsEmpty(szValue) );
 
       m_dwLastError = RegSetValue((HKEY) m_hKey, NULL, REG_SZ, strValue, NULL);
       if ( m_dwLastError == ERROR_SUCCESS )
         return TRUE;

-    #endif  //WIN16/32
+#endif  //WIN16/32

   }
 
   wxLogSysError(m_dwLastError, _("Can't set value of '%s'"),
   }
 
   wxLogSysError(m_dwLastError, _("Can't set value of '%s'"),


@@ -960,7 +986,7 @@ bool wxRegKey::GetNextValue(wxString& strValueName, long& lIndex) const
   if ( lIndex == -1 )
     return FALSE;
 
   if ( lIndex == -1 )
     return FALSE;
 

-#if defined( __WIN32__) && !defined(__TWIN32__)
+#if defined( __WIN32__)

     wxChar  szValueName[1024];                  // @@ use RegQueryInfoKey...
     DWORD dwValueLen = WXSIZEOF(szValueName);
 
     wxChar  szValueName[1024];                  // @@ use RegQueryInfoKey...
     DWORD dwValueLen = WXSIZEOF(szValueName);
 


@@ -985,13 +1011,13 @@ bool wxRegKey::GetNextValue(wxString& strValueName, long& lIndex) const
     }
 
     strValueName = szValueName;
     }
 
     strValueName = szValueName;

-  #else   //WIN16
+#else   //WIN16

     // only one unnamed value
     wxASSERT( lIndex == 0 );
 
     lIndex = -1;
     strValueName.Empty();
     // only one unnamed value
     wxASSERT( lIndex == 0 );
 
     lIndex = -1;
     strValueName.Empty();

-  #endif
+#endif

 
   return TRUE;
 }
 
   return TRUE;
 }


@@ -1014,7 +1040,14 @@ bool wxRegKey::GetNextKey(wxString& strKeyName, long& lIndex) const
     return FALSE;
 
   wxChar szKeyName[_MAX_PATH + 1];
     return FALSE;
 
   wxChar szKeyName[_MAX_PATH + 1];

+
+#ifdef __WXWINCE__
+  DWORD sizeName = WXSIZEOF(szKeyName);
+  m_dwLastError = RegEnumKeyEx((HKEY) m_hKey, lIndex++, szKeyName, & sizeName,
+      0, NULL, NULL, NULL);
+#else

   m_dwLastError = RegEnumKey((HKEY) m_hKey, lIndex++, szKeyName, WXSIZEOF(szKeyName));
   m_dwLastError = RegEnumKey((HKEY) m_hKey, lIndex++, szKeyName, WXSIZEOF(szKeyName));

+#endif

 
   if ( m_dwLastError != ERROR_SUCCESS ) {
     if ( m_dwLastError == ERROR_NO_MORE_ITEMS ) {
 
   if ( m_dwLastError != ERROR_SUCCESS ) {
     if ( m_dwLastError == ERROR_NO_MORE_ITEMS ) {


@@ -1054,16 +1087,25 @@ bool wxRegKey::IsNumericValue(const wxChar *szValue) const
 
 bool KeyExists(WXHKEY hRootKey, const wxChar *szKey)
 {
 
 bool KeyExists(WXHKEY hRootKey, const wxChar *szKey)
 {

-  // don't close this key itself for the case of empty szKey!
-  if ( wxIsEmpty(szKey) )
-    return TRUE;
+    // don't close this key itself for the case of empty szKey!
+    if ( wxIsEmpty(szKey) )
+        return TRUE;
+
+    HKEY hkeyDummy;
+    if ( ::RegOpenKeyEx
+         (
+            (HKEY)hRootKey,
+            szKey,
+            RESERVED,
+            KEY_READ,        // we might not have enough rights for rw access
+            &hkeyDummy
+         ) == ERROR_SUCCESS )
+    {
+        ::RegCloseKey(hkeyDummy);
+
+        return TRUE;
+    }

 
 

-  HKEY hkeyDummy;
-  if ( RegOpenKey( (HKEY) hRootKey, szKey, &hkeyDummy) == ERROR_SUCCESS ) {
-    RegCloseKey(hkeyDummy);
-    return TRUE;
-  }
-  else

     return FALSE;
 }
 
     return FALSE;
 }