X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/eaac8805cd0fc233aeb0fc40a31bf8d8e03bf59c..1ffeecf7a90f620c9a194a138bc84db17fdd18e0:/src/msw/regconf.cpp

diff --git a/src/msw/regconf.cpp b/src/msw/regconf.cpp
index 2fa8685006..19481f6b37 100644
--- a/src/msw/regconf.cpp
+++ b/src/msw/regconf.cpp
@@ -1,39 +1,32 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        msw/regconf.cpp
+// Name:        src/msw/regconf.cpp
 // Purpose:
 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     27.04.98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence:     wxWindows license
+// Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
-#pragma implementation "regconf.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/string.h"
-  #include  "wx/intl.h"
-#endif //WX_PRECOMP
-
-#include "wx/event.h"
-#include "wx/app.h"
-#include "wx/log.h"
-
 #if wxUSE_CONFIG
 
 #include "wx/config.h"
 
-#ifndef __WIN16__
+#ifndef WX_PRECOMP
+    #include  "wx/string.h"
+    #include  "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/event.h"
+    #include "wx/app.h"
+#endif //WX_PRECOMP
 
 #include "wx/msw/registry.h"
 #include "wx/msw/regconf.h"
@@ -43,7 +36,7 @@
 // ----------------------------------------------------------------------------
 
 // we put our data in HKLM\SOFTWARE_KEY\appname
-#define SOFTWARE_KEY    wxString("Software\\")
+#define SOFTWARE_KEY    wxString(wxT("Software\\"))
 
 // ----------------------------------------------------------------------------
 // global functions
@@ -67,6 +60,7 @@ bool TryGetValue(const wxRegKey& key, const wxString& str, long *plVal)
 // ----------------------------------------------------------------------------
 // ctor/dtor
 // ----------------------------------------------------------------------------
+IMPLEMENT_ABSTRACT_CLASS(wxRegConfig, wxConfigBase)
 
 // create the config object which stores its data under HKCU\vendor\app and, if
 // style & wxCONFIG_USE_GLOBAL_FILE, under HKLM\vendor\app
@@ -82,9 +76,9 @@ wxRegConfig::wxRegConfig(const wxString& appName, const wxString& vendorName,
   // the convention is to put the programs keys under <vendor>\<appname>
   // (but it can be overriden by specifying the pathes explicitly in strLocal
   // and/or strGlobal)
-  if ( strLocal.IsEmpty() || (strGlobal.IsEmpty() && bDoUseGlobal) )
+  if ( strLocal.empty() || (strGlobal.empty() && bDoUseGlobal) )
   {
-    if ( vendorName.IsEmpty() )
+    if ( vendorName.empty() )
     {
       if ( wxTheApp )
         strRoot = wxTheApp->GetVendorName();
@@ -95,12 +89,12 @@ wxRegConfig::wxRegConfig(const wxString& appName, const wxString& vendorName,
     }
 
     // no '\\' needed if no vendor name
-    if ( !strRoot.IsEmpty() )
+    if ( !strRoot.empty() )
     {
       strRoot += '\\';
     }
 
-    if ( appName.IsEmpty() )
+    if ( appName.empty() )
     {
       wxCHECK_RET( wxTheApp, wxT("No application name in wxRegConfig ctor!") );
       strRoot << wxTheApp->GetAppName();
@@ -112,7 +106,7 @@ wxRegConfig::wxRegConfig(const wxString& appName, const wxString& vendorName,
   }
   //else: we don't need to do all the complicated stuff above
 
-  wxString str = strLocal.IsEmpty() ? strRoot : strLocal;
+  wxString str = strLocal.empty() ? strRoot : strLocal;
 
   // as we're going to change the name of these keys fairly often and as
   // there are only few of wxRegConfig objects (usually 1), we can allow
@@ -124,17 +118,17 @@ wxRegConfig::wxRegConfig(const wxString& appName, const wxString& vendorName,
   m_keyLocal.ReserveMemoryForName(MEMORY_PREALLOC);
 
   m_keyLocalRoot.SetName(wxRegKey::HKCU, SOFTWARE_KEY + str);
-  m_keyLocal.SetName(m_keyLocalRoot, _T(""));
+  m_keyLocal.SetName(m_keyLocalRoot, wxEmptyString);
 
   if ( bDoUseGlobal )
   {
-    str = strGlobal.IsEmpty() ? strRoot : strGlobal;
+    str = strGlobal.empty() ? strRoot : strGlobal;
 
     m_keyGlobalRoot.ReserveMemoryForName(MEMORY_PREALLOC);
     m_keyGlobal.ReserveMemoryForName(MEMORY_PREALLOC);
 
     m_keyGlobalRoot.SetName(wxRegKey::HKLM, SOFTWARE_KEY + str);
-    m_keyGlobal.SetName(m_keyGlobalRoot, _T(""));
+    m_keyGlobal.SetName(m_keyGlobalRoot, wxEmptyString);
   }
 
   // Create() will Open() if key already exists
@@ -148,16 +142,11 @@ wxRegConfig::wxRegConfig(const wxString& appName, const wxString& vendorName,
   if ( bDoUseGlobal )
   {
     wxLogNull nolog;
-    m_keyGlobalRoot.Open();
-    m_keyGlobal.Open();
+    m_keyGlobalRoot.Open(wxRegKey::Read);
+    m_keyGlobal.Open(wxRegKey::Read);
   }
 }
 
-wxRegConfig::~wxRegConfig()
-{
-  // nothing to do - key will be closed in their dtors
-}
-
 // ----------------------------------------------------------------------------
 // path management
 // ----------------------------------------------------------------------------
@@ -182,7 +171,7 @@ void wxRegConfig::SetPath(const wxString& strPath)
 
         // because GetPath() returns "" when we're at root, we must understand
         // empty string as "/"
-        if ( strPath.IsEmpty() || (strPath[0] == wxCONFIG_PATH_SEPARATOR) ) {
+        if ( strPath.empty() || (strPath[0] == wxCONFIG_PATH_SEPARATOR) ) {
             // absolute path
             wxSplitPath(aParts, strPath);
         }
@@ -222,9 +211,9 @@ void wxRegConfig::SetPath(const wxString& strPath)
             strFullPath.reserve(2*m_strPath.length());
 
             strFullPath << m_strPath;
-            if ( strFullPath.Len() == 0 || 
+            if ( strFullPath.Len() == 0 ||
                  strFullPath.Last() != wxCONFIG_PATH_SEPARATOR )
-                strFullPath << wxCONFIG_PATH_SEPARATOR; 
+                strFullPath << wxCONFIG_PATH_SEPARATOR;
             strFullPath << strPath;
         }
 
@@ -245,7 +234,8 @@ void wxRegConfig::SetPath(const wxString& strPath)
         size_t len = strFullPath.length();
         const wxChar *end = src + len;
 
-        wxChar *dst = m_strPath.GetWriteBuf(len);
+        wxStringBufferLength buf(m_strPath, len);
+        wxChar *dst = buf;
         wxChar *start = dst;
 
         for ( ; src < end; src++, dst++ )
@@ -274,6 +264,7 @@ void wxRegConfig::SetPath(const wxString& strPath)
                             // check the boundary condition below
 
                             // this is more efficient than strrchr()
+                            dst--;
                             while ( *dst != wxCONFIG_PATH_SEPARATOR )
                             {
                                 dst--;
@@ -288,10 +279,13 @@ void wxRegConfig::SetPath(const wxString& strPath)
                             posLastSlash = -1;
                         }
 
-                        // this shouldn't happen
+                        // we must have found a slash one way or another!
                         wxASSERT_MSG( *dst == wxCONFIG_PATH_SEPARATOR,
                                       _T("error in wxRegConfig::SetPath") );
 
+                        // stay at the same position
+                        dst--;
+
                         // we killed one
                         totalSlashes--;
                     }
@@ -333,8 +327,7 @@ void wxRegConfig::SetPath(const wxString& strPath)
         }
 
         *dst = _T('\0');
-
-        m_strPath.UngetWriteBuf(dst - start);
+        buf.SetLength(dst - start);
     }
 
 #ifdef WX_DEBUG_SET_PATH
@@ -346,21 +339,25 @@ void wxRegConfig::SetPath(const wxString& strPath)
 
     // registry APIs want backslashes instead of slashes
     wxString strRegPath;
-    size_t len = m_strPath.length();
+    if ( !m_strPath.empty() )
+    {
+        size_t len = m_strPath.length();
 
-    const wxChar *src = m_strPath.c_str();
-    wxChar *dst = strRegPath.GetWriteBuf(len);
+        const wxChar *src = m_strPath.c_str();
+        wxStringBufferLength buf(strRegPath, len);
+        wxChar *dst = buf;
 
-    const wxChar *end = src + len;
-    for ( ; src < end; src++, dst++ )
-    {
-        if ( *src == wxCONFIG_PATH_SEPARATOR )
-            *dst = _T('\\');
-        else
-            *dst = *src;
-    }
+        const wxChar *end = src + len;
+        for ( ; src < end; src++, dst++ )
+        {
+            if ( *src == wxCONFIG_PATH_SEPARATOR )
+                *dst = _T('\\');
+            else
+                *dst = *src;
+        }
 
-    strRegPath.UngetWriteBuf(len);
+        buf.SetLength(len);
+    }
 
     // this is not needed any longer as we don't create keys unnecessarily any
     // more (now it is done on demand, i.e. only when they're going to contain
@@ -378,13 +375,14 @@ void wxRegConfig::SetPath(const wxString& strPath)
 
     // change current key(s)
     m_keyLocal.SetName(m_keyLocalRoot, strRegPath);
-    m_keyGlobal.SetName(m_keyGlobalRoot, strRegPath);
 
-    // don't create it right now, wait until it is accessed
-    //m_keyLocal.Create();
+    if ( GetStyle() & wxCONFIG_USE_GLOBAL_FILE )
+    {
+      m_keyGlobal.SetName(m_keyGlobalRoot, strRegPath);
 
-    wxLogNull nolog;
-    m_keyGlobal.Open();
+      wxLogNull nolog;
+      m_keyGlobal.Open(wxRegKey::Read);
+    }
 }
 
 // ----------------------------------------------------------------------------
@@ -416,7 +414,7 @@ bool wxRegConfig::GetNextGroup(wxString& str, long& lIndex) const
     while ( m_keyGlobal.GetNextKey(str, lIndex) ) {
       if ( !m_keyLocal.Exists() || !LocalKey().HasSubKey(str) ) {
         // ok, found one - return it
-        return TRUE;
+        return true;
       }
     }
 
@@ -426,7 +424,7 @@ bool wxRegConfig::GetNextGroup(wxString& str, long& lIndex) const
 
   // if we don't have the key at all, don't try to enumerate anything under it
   if ( !m_keyLocal.Exists() )
-      return FALSE;
+      return false;
 
   // much easier with local entries: get the next one we find
   // (don't forget to clear our flag bit and set it again later)
@@ -451,7 +449,7 @@ bool wxRegConfig::GetNextEntry(wxString& str, long& lIndex) const
     while ( m_keyGlobal.GetNextValue(str, lIndex) ) {
       if ( !m_keyLocal.Exists() || !LocalKey().HasValue(str) ) {
         // ok, found one - return it
-        return TRUE;
+        return true;
       }
     }
 
@@ -461,7 +459,7 @@ bool wxRegConfig::GetNextEntry(wxString& str, long& lIndex) const
 
   // if we don't have the key at all, don't try to enumerate anything under it
   if ( !m_keyLocal.Exists() )
-      return FALSE;
+      return false;
 
   // much easier with local entries: get the next one we find
   // (don't forget to clear our flag bit and set it again later)
@@ -551,47 +549,13 @@ wxConfigBase::EntryType wxRegConfig::GetEntryType(const wxString& key) const
 // reading/writing
 // ----------------------------------------------------------------------------
 
-bool wxRegConfig::Read(const wxString& key, wxString *pStr) const
+bool wxRegConfig::DoReadString(const wxString& key, wxString *pStr) const
 {
-  wxConfigPathChanger path(this, key);
-
-  bool bQueryGlobal = TRUE;
-
-  // if immutable key exists in global key we must check that it's not
-  // overriden by the local key with the same name
-  if ( IsImmutable(path.Name()) ) {
-    if ( TryGetValue(m_keyGlobal, path.Name(), *pStr) ) {
-      if ( m_keyLocal.Exists() && LocalKey().HasValue(path.Name()) ) {
-        wxLogWarning(wxT("User value for immutable key '%s' ignored."),
-                   path.Name().c_str());
-      }
-     *pStr = wxConfigBase::ExpandEnvVars(*pStr);
-      return TRUE;
-    }
-    else {
-      // don't waste time - it's not there anyhow
-      bQueryGlobal = FALSE;
-    }
-  }
-
-  // first try local key
-  if ( (m_keyLocal.Exists() && TryGetValue(LocalKey(), path.Name(), *pStr)) ||
-       (bQueryGlobal && TryGetValue(m_keyGlobal, path.Name(), *pStr)) ) {
-    // nothing to do
-
-    *pStr = wxConfigBase::ExpandEnvVars(*pStr);
-    return TRUE;
-  }
+    wxCHECK_MSG( pStr, false, _T("wxRegConfig::Read(): NULL param") );
 
-  return FALSE;
-}
-
-bool wxRegConfig::Read(const wxString& key, wxString *pStr,
-                       const wxString& szDefault) const
-{
   wxConfigPathChanger path(this, key);
 
-  bool bQueryGlobal = TRUE;
+  bool bQueryGlobal = true;
 
   // if immutable key exists in global key we must check that it's not
   // overriden by the local key with the same name
@@ -602,39 +566,33 @@ bool wxRegConfig::Read(const wxString& key, wxString *pStr,
                    path.Name().c_str());
       }
 
-      return TRUE;
+      return true;
     }
     else {
       // don't waste time - it's not there anyhow
-      bQueryGlobal = FALSE;
+      bQueryGlobal = false;
     }
   }
 
   // first try local key
   if ( (m_keyLocal.Exists() && TryGetValue(LocalKey(), path.Name(), *pStr)) ||
        (bQueryGlobal && TryGetValue(m_keyGlobal, path.Name(), *pStr)) ) {
-    *pStr = wxConfigBase::ExpandEnvVars(*pStr);
-    return TRUE;
+    return true;
   }
-  else {
-    if ( IsRecordingDefaults() ) {
-      ((wxRegConfig*)this)->Write(key, szDefault);
-    }
 
-    // default value
-    *pStr = szDefault;
-  }
-
-  *pStr = wxConfigBase::ExpandEnvVars(*pStr);
-
-  return FALSE;
+  return false;
 }
 
-bool wxRegConfig::Read(const wxString& key, long *plResult) const
+// this exactly reproduces the string version above except for ExpandEnvVars(),
+// we really should avoid this code duplication somehow...
+
+bool wxRegConfig::DoReadLong(const wxString& key, long *plResult) const
 {
+    wxCHECK_MSG( plResult, false, _T("wxRegConfig::Read(): NULL param") );
+
   wxConfigPathChanger path(this, key);
 
-  bool bQueryGlobal = TRUE;
+  bool bQueryGlobal = true;
 
   // if immutable key exists in global key we must check that it's not
   // overriden by the local key with the same name
@@ -645,41 +603,42 @@ bool wxRegConfig::Read(const wxString& key, long *plResult) const
                      path.Name().c_str());
       }
 
-      return TRUE;
+      return true;
     }
     else {
       // don't waste time - it's not there anyhow
-      bQueryGlobal = FALSE;
+      bQueryGlobal = false;
     }
   }
 
   // first try local key
   if ( (m_keyLocal.Exists() && TryGetValue(LocalKey(), path.Name(), plResult)) ||
        (bQueryGlobal && TryGetValue(m_keyGlobal, path.Name(), plResult)) ) {
-    return TRUE;
+    return true;
   }
-  return FALSE;
+
+  return false;
 }
 
-bool wxRegConfig::Write(const wxString& key, const wxString& szValue)
+bool wxRegConfig::DoWriteString(const wxString& key, const wxString& szValue)
 {
   wxConfigPathChanger path(this, key);
 
   if ( IsImmutable(path.Name()) ) {
     wxLogError(wxT("Can't change immutable entry '%s'."), path.Name().c_str());
-    return FALSE;
+    return false;
   }
 
   return LocalKey().SetValue(path.Name(), szValue);
 }
 
-bool wxRegConfig::Write(const wxString& key, long lValue)
+bool wxRegConfig::DoWriteLong(const wxString& key, long lValue)
 {
   wxConfigPathChanger path(this, key);
 
   if ( IsImmutable(path.Name()) ) {
     wxLogError(wxT("Can't change immutable entry '%s'."), path.Name().c_str());
-    return FALSE;
+    return false;
   }
 
   return LocalKey().SetValue(path.Name(), lValue);
@@ -693,11 +652,11 @@ bool wxRegConfig::RenameEntry(const wxString& oldName, const wxString& newName)
 {
     // check that the old entry exists...
     if ( !HasEntry(oldName) )
-        return FALSE;
+        return false;
 
     // and that the new one doesn't
     if ( HasEntry(newName) )
-        return FALSE;
+        return false;
 
     return m_keyLocal.RenameValue(oldName, newName);
 }
@@ -706,11 +665,11 @@ bool wxRegConfig::RenameGroup(const wxString& oldName, const wxString& newName)
 {
     // check that the old group exists...
     if ( !HasGroup(oldName) )
-        return FALSE;
+        return false;
 
     // and that the new one doesn't
     if ( HasGroup(newName) )
-        return FALSE;
+        return false;
 
     return wxRegKey(m_keyLocal, oldName).Rename(newName);
 }
@@ -718,29 +677,41 @@ bool wxRegConfig::RenameGroup(const wxString& oldName, const wxString& newName)
 // ----------------------------------------------------------------------------
 // deleting
 // ----------------------------------------------------------------------------
-bool wxRegConfig::DeleteEntry(const wxString& value, bool WXUNUSED(bGroupIfEmptyAlso))
+
+bool wxRegConfig::DeleteEntry(const wxString& value, bool bGroupIfEmptyAlso)
 {
   wxConfigPathChanger path(this, value);
 
   if ( m_keyLocal.Exists() ) {
     if ( !m_keyLocal.DeleteValue(path.Name()) )
-      return FALSE;
+      return false;
 
-    if ( m_keyLocal.IsEmpty() ) {
+    if ( bGroupIfEmptyAlso && m_keyLocal.IsEmpty() ) {
       wxString strKey = GetPath().AfterLast(wxCONFIG_PATH_SEPARATOR);
-      SetPath("..");  // changes m_keyLocal
+      SetPath(_T(".."));  // changes m_keyLocal
       return LocalKey().DeleteKey(strKey);
     }
   }
 
-  return TRUE;
+  return true;
 }
 
 bool wxRegConfig::DeleteGroup(const wxString& key)
 {
-  wxConfigPathChanger path(this, key);
+  wxConfigPathChanger path(this, RemoveTrailingSeparator(key));
 
-  return m_keyLocal.Exists() ? LocalKey().DeleteKey(path.Name()) : TRUE;
+  if ( !m_keyLocal.Exists() )
+  {
+      // nothing to do
+      return true;
+  }
+
+  if ( !LocalKey().DeleteKey(path.Name()) )
+      return false;
+
+  path.UpdateIfDeleted();
+
+  return true;
 }
 
 bool wxRegConfig::DeleteAll()
@@ -758,8 +729,4 @@ bool wxRegConfig::DeleteAll()
   return bOk;
 }
 
-#endif
-  // __WIN16__
-
-#endif
-  // wxUSE_CONFIG
+#endif // wxUSE_CONFIG