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iniconf.cpp
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2000-10-24
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468 lines
///////////////////////////////////////////////////////////////////////////////
// Name: src/os2/iniconf.cpp
// Purpose: implementation of wxIniConfig class
// Author: David Webster
// Modified by:
// Created: 10/09/99
// Copyright: David Webster
// Licence: wxWindows license
///////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifndef WX_PRECOMP
#include <wx/string.h>
#include <wx/intl.h>
#include <wx/event.h>
#include <wx/app.h>
#include <wx/utils.h>
#endif //WX_PRECOMP
#include <wx/dynarray.h>
#include <wx/log.h>
#include <wx/config.h>
#if wxUSE_CONFIG
#include <wx/os2/iniconf.h>
#define INCL_PM
#include <os2.h>
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// we replace all path separators with this character
#define PATH_SEP_REPLACE '_'
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// ctor & dtor
// ----------------------------------------------------------------------------
wxIniConfig::wxIniConfig(const wxString& strAppName,
const wxString& strVendor,
const wxString& localFilename,
const wxString& globalFilename,
long style)
: wxConfigBase(!strAppName && wxTheApp ? wxTheApp->GetAppName()
: strAppName,
!strVendor ? (wxTheApp ? wxTheApp->GetVendorName()
: strAppName)
: strVendor,
localFilename, globalFilename, style)
{
m_strLocalFilename = localFilename;
if (m_strLocalFilename.IsEmpty())
{
m_strLocalFilename = GetAppName() + ".ini";
}
// append the extension if none given and it's not an absolute file name
// (otherwise we assume that they know what they're doing)
if ( !wxIsPathSeparator(m_strLocalFilename[(size_t) 0]) &&
m_strLocalFilename.Find('.') == wxNOT_FOUND )
{
m_strLocalFilename << ".ini";
}
// set root path
SetPath("");
}
wxIniConfig::~wxIniConfig()
{
}
// ----------------------------------------------------------------------------
// path management
// ----------------------------------------------------------------------------
void wxIniConfig::SetPath(const wxString& strPath)
{
wxArrayString aParts;
if ( strPath.IsEmpty() ) {
// nothing
}
else if ( strPath[(size_t) 0] == wxCONFIG_PATH_SEPARATOR ) {
// absolute path
wxSplitPath(aParts, strPath);
}
else {
// relative path, combine with current one
wxString strFullPath = GetPath();
strFullPath << wxCONFIG_PATH_SEPARATOR << strPath;
wxSplitPath(aParts, strFullPath);
}
size_t nPartsCount = aParts.Count();
m_strPath.Empty();
if ( nPartsCount == 0 ) {
// go to the root
m_strGroup = PATH_SEP_REPLACE;
}
else {
// translate
m_strGroup = aParts[(size_t) 0];
for ( size_t nPart = 1; nPart < nPartsCount; nPart++ ) {
if ( nPart > 1 )
m_strPath << PATH_SEP_REPLACE;
m_strPath << aParts[nPart];
}
}
// other functions assume that all this is true, i.e. there are no trailing
// underscores at the end except if the group is the root one
wxASSERT( (m_strPath.IsEmpty() || m_strPath.Last() != PATH_SEP_REPLACE) &&
(m_strGroup == wxString(PATH_SEP_REPLACE) ||
m_strGroup.Last() != PATH_SEP_REPLACE) );
}
const wxString& wxIniConfig::GetPath() const
{
static wxString s_str;
// always return abs path
s_str = wxCONFIG_PATH_SEPARATOR;
if ( m_strGroup == wxString(PATH_SEP_REPLACE) ) {
// we're at the root level, nothing to do
}
else {
s_str << m_strGroup;
if ( !m_strPath.IsEmpty() )
s_str << wxCONFIG_PATH_SEPARATOR;
for ( const char *p = m_strPath; *p != '\0'; p++ ) {
s_str << (*p == PATH_SEP_REPLACE ? wxCONFIG_PATH_SEPARATOR : *p);
}
}
return s_str;
}
wxString wxIniConfig::GetPrivateKeyName(const wxString& szKey) const
{
wxString strKey;
if ( !m_strPath.IsEmpty() )
strKey << m_strPath << PATH_SEP_REPLACE;
strKey << szKey;
return strKey;
}
wxString wxIniConfig::GetKeyName(const wxString& szKey) const
{
wxString strKey;
if ( m_strGroup != wxString(PATH_SEP_REPLACE) )
strKey << m_strGroup << PATH_SEP_REPLACE;
if ( !m_strPath.IsEmpty() )
strKey << m_strPath << PATH_SEP_REPLACE;
strKey << szKey;
return strKey;
}
// ----------------------------------------------------------------------------
// enumeration
// ----------------------------------------------------------------------------
// not implemented
bool wxIniConfig::GetFirstGroup(wxString& str, long& lIndex) const
{
wxFAIL_MSG("not implemented");
return FALSE;
}
bool wxIniConfig::GetNextGroup (wxString& str, long& lIndex) const
{
wxFAIL_MSG("not implemented");
return FALSE;
}
bool wxIniConfig::GetFirstEntry(wxString& str, long& lIndex) const
{
wxFAIL_MSG("not implemented");
return FALSE;
}
bool wxIniConfig::GetNextEntry (wxString& str, long& lIndex) const
{
wxFAIL_MSG("not implemented");
return FALSE;
}
// ----------------------------------------------------------------------------
// misc info
// ----------------------------------------------------------------------------
// not implemented
size_t wxIniConfig::GetNumberOfEntries(bool bRecursive) const
{
wxFAIL_MSG("not implemented");
return (size_t)-1;
}
size_t wxIniConfig::GetNumberOfGroups(bool bRecursive) const
{
wxFAIL_MSG("not implemented");
return (size_t)-1;
}
bool wxIniConfig::HasGroup(const wxString& strName) const
{
wxFAIL_MSG("not implemented");
return FALSE;
}
bool wxIniConfig::HasEntry(const wxString& strName) const
{
wxFAIL_MSG("not implemented");
return FALSE;
}
// is current group empty?
bool wxIniConfig::IsEmpty() const
{
char szBuf[1024];
// GetPrivateProfileString(m_strGroup, NULL, "",
// szBuf, WXSIZEOF(szBuf), m_strLocalFilename);
if ( !::IsEmpty(szBuf) )
return FALSE;
// GetProfileString(m_strGroup, NULL, "", szBuf, WXSIZEOF(szBuf));
// if ( !::IsEmpty(szBuf) )
return FALSE;
return TRUE;
}
// ----------------------------------------------------------------------------
// read/write
// ----------------------------------------------------------------------------
bool wxIniConfig::Read(const wxString& szKey, wxString *pstr) const
{
wxConfigPathChanger path(this, szKey);
wxString strKey = GetPrivateKeyName(path.Name());
char szBuf[1024]; // @@ should dynamically allocate memory...
// first look in the private INI file
// NB: the lpDefault param to GetPrivateProfileString can't be NULL
// GetPrivateProfileString(m_strGroup, strKey, "",
// szBuf, WXSIZEOF(szBuf), m_strLocalFilename);
if ( ::IsEmpty(szBuf) ) {
// now look in win.ini
wxString strKey = GetKeyName(path.Name());
// GetProfileString(m_strGroup, strKey, "", szBuf, WXSIZEOF(szBuf));
}
if ( ::IsEmpty(szBuf) ) {
return FALSE;
}
else {
*pstr = szBuf ;
return TRUE;
}
}
bool wxIniConfig::Read(const wxString& szKey, wxString *pstr,
const wxString& szDefault) const
{
wxConfigPathChanger path(this, szKey);
wxString strKey = GetPrivateKeyName(path.Name());
char szBuf[1024]; // @@ should dynamically allocate memory...
// first look in the private INI file
// NB: the lpDefault param to GetPrivateProfileString can't be NULL
// GetPrivateProfileString(m_strGroup, strKey, "",
// szBuf, WXSIZEOF(szBuf), m_strLocalFilename);
if ( ::IsEmpty(szBuf) ) {
// now look in win.ini
wxString strKey = GetKeyName(path.Name());
// GetProfileString(m_strGroup, strKey, "", szBuf, WXSIZEOF(szBuf));
}
if ( ::IsEmpty(szBuf) ) {
*pstr = szDefault;
return FALSE;
}
else {
*pstr = szBuf ;
return TRUE;
}
}
bool wxIniConfig::Read(const wxString& szKey, long *pl) const
{
wxConfigPathChanger path(this, szKey);
wxString strKey = GetPrivateKeyName(path.Name());
// hack: we have no mean to know if it really found the default value or
// didn't find anything, so we call it twice
static const int nMagic = 17; // 17 is some "rare" number
static const int nMagic2 = 28; // arbitrary number != nMagic
long lVal = 0; // = GetPrivateProfileInt(m_strGroup, strKey, nMagic, m_strLocalFilename);
if ( lVal != nMagic ) {
// the value was read from the file
*pl = lVal;
return TRUE;
}
// is it really nMagic?
// lVal = GetPrivateProfileInt(m_strGroup, strKey, nMagic2, m_strLocalFilename);
if ( lVal == nMagic2 ) {
// the nMagic it returned was indeed read from the file
*pl = lVal;
return TRUE;
}
// no, it was just returning the default value, so now look in win.ini
// *pl = GetProfileInt(GetVendorName(), GetKeyName(szKey), *pl);
return TRUE;
}
bool wxIniConfig::Write(const wxString& szKey, const wxString& szValue)
{
wxConfigPathChanger path(this, szKey);
wxString strKey = GetPrivateKeyName(path.Name());
bool bOk = FALSE; // = WritePrivateProfileString(m_strGroup, strKey,
// szValue, m_strLocalFilename) != 0;
if ( !bOk )
wxLogLastError("WritePrivateProfileString");
return bOk;
}
bool wxIniConfig::Write(const wxString& szKey, long lValue)
{
// ltoa() is not ANSI :-(
char szBuf[40]; // should be good for sizeof(long) <= 16 (128 bits)
sprintf(szBuf, "%ld", lValue);
return Write(szKey, szBuf);
}
bool wxIniConfig::Flush(bool /* bCurrentOnly */)
{
// this is just the way it works
// return WritePrivateProfileString(NULL, NULL, NULL, m_strLocalFilename) != 0;
return FALSE;
}
// ----------------------------------------------------------------------------
// delete
// ----------------------------------------------------------------------------
bool wxIniConfig::DeleteEntry(const wxString& szKey, bool bGroupIfEmptyAlso)
{
// passing NULL as value to WritePrivateProfileString deletes the key
// if ( !Write(szKey, (const char *)NULL) )
// return FALSE;
wxConfigPathChanger path(this, szKey);
wxString strKey = GetPrivateKeyName(path.Name());
// if (WritePrivateProfileString(m_strGroup, szKey,
// (const char*) NULL, m_strLocalFilename) == 0)
// return FALSE;
if ( !bGroupIfEmptyAlso || !IsEmpty() )
return TRUE;
// delete the current group too
bool bOk = FALSE; // = WritePrivateProfileString(m_strGroup, NULL,
// NULL, m_strLocalFilename) != 0;
if ( !bOk )
wxLogLastError("WritePrivateProfileString");
return bOk;
}
bool wxIniConfig::DeleteGroup(const wxString& szKey)
{
wxConfigPathChanger path(this, szKey);
// passing NULL as section name to WritePrivateProfileString deletes the
// whole section according to the docs
bool bOk = FALSE; // = WritePrivateProfileString(path.Name(), NULL,
// NULL, m_strLocalFilename) != 0;
if ( !bOk )
wxLogLastError("WritePrivateProfileString");
return bOk;
}
#ifndef MAX_PATH
#define MAX_PATH 256
#endif
bool wxIniConfig::DeleteAll()
{
// first delete our group in win.ini
// WriteProfileString(GetVendorName(), NULL, NULL);
// then delete our own ini file
char szBuf[MAX_PATH];
size_t nRc = 0; // = GetWindowsDirectory(szBuf, WXSIZEOF(szBuf));
if ( nRc == 0 )
{
wxLogLastError("GetWindowsDirectory");
}
else if ( nRc > WXSIZEOF(szBuf) )
{
wxFAIL_MSG("buffer is too small for Windows directory.");
}
wxString strFile = szBuf;
strFile << '\\' << m_strLocalFilename;
if ( !wxRemoveFile(strFile) ) {
wxLogSysError(_("Can't delete the INI file '%s'"), strFile.c_str());
return FALSE;
}
return TRUE;
}
bool wxIniConfig::RenameEntry(const wxString& oldName, const wxString& newName)
{
// Not implemented
return FALSE;
}
bool wxIniConfig::RenameGroup(const wxString& oldName, const wxString& newName)
{
// Not implemented
return FALSE;
}
#endif //wxUSE_CONFIG