Small cursor improvements

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

diff --git a/include/wx/fileconf.h b/include/wx/fileconf.h
index e499328236c29a4865a5726a35786ea5a542a7f7..d5e34274d434a7265c4fd151bf6467cdf7e16fd4 100644 (file)
--- a/include/wx/fileconf.h
+++ b/include/wx/fileconf.h
@@ -1,17 +1,14 @@
-/*****************************************************************************\
- * Project:   CppLib: C++ library for Windows/UNIX platfroms                 *
- * File:      fileconf.h - file based implementation of Config               *
- *---------------------------------------------------------------------------*
- * Language:  C++                                                            *
- * Platfrom:  Any                                                            *
- *---------------------------------------------------------------------------*
- * Classes:                                                                  *
- *---------------------------------------------------------------------------*
- * Author:    Vadim Zeitlin zeitlin@dptmaths.ens-cachan.fr>                  *
- *            adapted from earlier class by VZ & Karsten Ballüder            *
- * History:                                                                  *
- *  27.04.98  created                                                        *
-\*****************************************************************************/
+///////////////////////////////////////////////////////////////////////////////
+// Name:        fileconf.h
+// Purpose:     wxFileConfig derivation of wxConfigBase
+// Author:      Vadim Zeitlin
+// Modified by:
+// Created:     07.04.98 (adapted from appconf.cpp)
+// RCS-ID:      $Id$
+// Copyright:   (c) 1997 Karsten Ballüder   &  Vadim Zeitlin
+//                       Ballueder@usa.net     <zeitlin@dptmaths.ens-cachan.fr>
+// Licence:     wxWindows license
+///////////////////////////////////////////////////////////////////////////////

 
 #ifndef   _FILECONF_H
 #define   _FILECONF_H
 
 #ifndef   _FILECONF_H
 #define   _FILECONF_H


@@ -20,14 +17,18 @@
 #pragma interface "fileconf.h"
 #endif
 
 #pragma interface "fileconf.h"
 #endif
 

+#include "wx/defs.h"
+#include "wx/textfile.h"
+#include "wx/string.h"
+

 // ----------------------------------------------------------------------------
 // compile options
 // ----------------------------------------------------------------------------
 
 // it won't compile without it anyhow
 // ----------------------------------------------------------------------------
 // compile options
 // ----------------------------------------------------------------------------
 
 // it won't compile without it anyhow

-#ifndef USE_WXCONFIG
-  #error "Please define USE_WXCONFIG or remove fileconf.cpp from your makefile"
-#endif // USE_WXCONFIG
+#ifndef wxUSE_CONFIG
+  #error "Please define wxUSE_CONFIG or remove fileconf.cpp from your makefile"
+#endif // wxUSE_CONFIG

 
 // ----------------------------------------------------------------------------
 // wxFileConfig
 
 // ----------------------------------------------------------------------------
 // wxFileConfig


@@ -83,10 +84,50 @@
   and local value is ignored. Of course, the changes are always written to local
   file only.
 
   and local value is ignored. Of course, the changes are always written to local
   file only.
 

-  @@@@ describe environment variable expansion
+  The names of these files can be specified in a number of ways. First of all,
+  you can use the standard convention: using the ctor which takes 'strAppName'
+  parameter will probably be sufficient for 90% of cases. If, for whatever
+  reason you wish to use the files with some other names, you can always use the
+  second ctor.
+
+  wxFileConfig also may automatically expand the values of environment variables
+  in the entries it reads: for example, if you have an entry
+    score_file = $HOME/.score
+  a call to Read(&str, "score_file") will return a complete path to .score file
+  unless the expansion was previousle disabled with SetExpandEnvVars(FALSE) call
+  (it's on by default, the current status can be retrieved with
+   IsExpandingEnvVars function).

 */
 */

+class wxFileConfig;
+class ConfigGroup;
+class ConfigEntry;

 
 

-class wxFileConfig : public wxConfig
+// we store all lines of the local config file as a linked list in memory
+class LineList
+{
+public:
+  void      SetNext(LineList *pNext)  { m_pNext = pNext; }
+  void      SetPrev(LineList *pPrev)  { m_pPrev = pPrev; }
+
+  // ctor
+  LineList(const wxString& str, LineList *pNext = (LineList *) NULL) : m_strLine(str)
+    { SetNext(pNext); SetPrev((LineList *) NULL); }
+
+  //
+  LineList *Next() const              { return m_pNext;  }
+  LineList *Prev() const              { return m_pPrev;  }
+
+  //
+  void SetText(const wxString& str) { m_strLine = str;  }
+  const wxString& Text() const      { return m_strLine; }
+
+private:
+  wxString  m_strLine;      // line contents
+  LineList *m_pNext,        // next node
+           *m_pPrev;        // previous one
+};
+
+class wxFileConfig : public wxConfigBase

 {
 public:
   // construct the "standard" full name for global (system-wide) and
 {
 public:
   // construct the "standard" full name for global (system-wide) and


@@ -99,13 +140,18 @@ public:
   //
   // where file is the basename of szFile, ext is it's extension
   // or .conf (Unix) or .ini (Win) if it has none
   //
   // where file is the basename of szFile, ext is it's extension
   // or .conf (Unix) or .ini (Win) if it has none

-  static wxString GetGlobalFileName(const char *szFile);
-  static wxString GetLocalFileName(const char *szFile);
+  static wxString GetGlobalFileName(const wxChar *szFile);
+  static wxString GetLocalFileName(const wxChar *szFile);

 
   // ctor & dtor
 
   // ctor & dtor

-    // if strGlobal is empty, only local config file is used
-  wxFileConfig(const wxString& strLocal,
-               const wxString& strGlobal = "");
+    // New constructor: one size fits all. Specify wxCONFIG_USE_LOCAL_FILE or
+    // wxCONFIG_USE_GLOBAL_FILE to say which files should be used.
+  wxFileConfig(const wxString& appName,
+               const wxString& vendorName = _T(""),
+               const wxString& localFilename = _T(""),
+               const wxString& globalFilename = _T(""),
+               long style = wxCONFIG_USE_LOCAL_FILE);
+

     // dtor will save unsaved data
   virtual ~wxFileConfig();
 
     // dtor will save unsaved data
   virtual ~wxFileConfig();
 


@@ -113,58 +159,58 @@ public:
   virtual void SetPath(const wxString& strPath);
   virtual const wxString& GetPath() const { return m_strPath; }
 
   virtual void SetPath(const wxString& strPath);
   virtual const wxString& GetPath() const { return m_strPath; }
 

-  virtual bool GetFirstGroup(wxString& str, long& lIndex);
-  virtual bool GetNextGroup (wxString& str, long& lIndex);
-  virtual bool GetFirstEntry(wxString& str, long& lIndex);
-  virtual bool GetNextEntry (wxString& str, long& lIndex);
+  virtual bool GetFirstGroup(wxString& str, long& lIndex) const;
+  virtual bool GetNextGroup (wxString& str, long& lIndex) const;
+  virtual bool GetFirstEntry(wxString& str, long& lIndex) const;
+  virtual bool GetNextEntry (wxString& str, long& lIndex) const;
+
+  virtual size_t GetNumberOfEntries(bool bRecursive = FALSE) const;
+  virtual size_t GetNumberOfGroups(bool bRecursive = FALSE) const;

 
   virtual bool HasGroup(const wxString& strName) const;
   virtual bool HasEntry(const wxString& strName) const;
 
 
   virtual bool HasGroup(const wxString& strName) const;
   virtual bool HasEntry(const wxString& strName) const;
 

-  virtual bool Read(wxString *pstr, const char *szKey,
-                    const char *szDefault = 0) const;
-  virtual const char *Read(const char *szKey,
-                           const char *szDefault = 0) const;
-  virtual bool Read(long *pl, const char *szKey, long lDefault) const;
-  virtual long Read(const char *szKey, long lDefault) const
-    { return wxConfig::Read(szKey, lDefault); }
-  virtual bool Write(const char *szKey, const char *szValue);
-  virtual bool Write(const char *szKey, long lValue);
+  virtual bool Read(const wxString& key, wxString *pStr) const;
+  virtual bool Read(const wxString& key, wxString *pStr, const wxString& defValue) const;
+  virtual bool Read(const wxString& key, long *pl) const;
+
+  // The following are necessary to satisfy the compiler
+  wxString Read(const wxString& key, const wxString& defVal) const
+    { return wxConfigBase::Read(key, defVal); }
+  bool Read(const wxString& key, long *pl, long defVal) const
+    { return wxConfigBase::Read(key, pl, defVal); }
+  long Read(const wxString& key, long defVal) const
+    { return wxConfigBase::Read(key, defVal); }
+  bool Read(const wxString& key, int *pi, int defVal) const
+    { return wxConfigBase::Read(key, pi, defVal); }
+  bool Read(const wxString& key, int *pi) const
+    { return wxConfigBase::Read(key, pi); }
+  bool Read(const wxString& key, double* val) const
+    { return wxConfigBase::Read(key, val); }
+  bool Read(const wxString& key, double* val, double defVal) const
+    { return wxConfigBase::Read(key, val, defVal); }
+  bool Read(const wxString& key, bool* val) const
+    { return wxConfigBase::Read(key, val); }
+  bool Read(const wxString& key, bool* val, bool defVal) const
+    { return wxConfigBase::Read(key, val, defVal); }
+
+  virtual bool Write(const wxString& key, const wxString& szValue);
+  virtual bool Write(const wxString& key, long lValue);
+  bool Write(const wxString& key, double value)
+    { return wxConfigBase::Write(key, value); }
+  bool Write(const wxString& key, bool value)
+    { return wxConfigBase::Write(key, value); }
+

   virtual bool Flush(bool bCurrentOnly = FALSE);
 
   virtual bool Flush(bool bCurrentOnly = FALSE);
 

-  virtual bool DeleteEntry(const char *szKey, bool bGroupIfEmptyAlso);
-  virtual bool DeleteGroup(const char *szKey);
+  virtual bool RenameEntry(const wxString& oldName, const wxString& newName);
+  virtual bool RenameGroup(const wxString& oldName, const wxString& newName);
+
+  virtual bool DeleteEntry(const wxString& key, bool bGroupIfEmptyAlso);
+  virtual bool DeleteGroup(const wxString& szKey);

   virtual bool DeleteAll();
 
 public:
   virtual bool DeleteAll();
 
 public:

-  // fwd decl
-  class ConfigGroup;
-  class ConfigEntry;
-
-  // we store all lines of the local config file as a linked list in memory
-  class LineList
-  {
-  public:
-    // ctor
-    LineList(const wxString& str, LineList *pNext = NULL) : m_strLine(str)
-      { SetNext(pNext); SetPrev(NULL); }
-
-    //
-    LineList *Next() const              { return m_pNext;  }
-    LineList *Prev() const              { return m_pPrev;  }
-    void      SetNext(LineList *pNext)  { m_pNext = pNext; }
-    void      SetPrev(LineList *pPrev)  { m_pPrev = pPrev; }
-
-    //
-    void SetText(const wxString& str) { m_strLine = str;  }
-    const wxString& Text() const      { return m_strLine; }
-
-  private:
-    wxString  m_strLine;      // line contents
-    LineList *m_pNext,        // next node
-             *m_pPrev;        // previous one
-  };
-

   // functions to work with this list
   LineList *LineListAppend(const wxString& str);
   LineList *LineListInsert(const wxString& str,
   // functions to work with this list
   LineList *LineListAppend(const wxString& str);
   LineList *LineListInsert(const wxString& str,


@@ -173,9 +219,17 @@ public:
   bool      LineListIsEmpty();
 
 private:
   bool      LineListIsEmpty();
 
 private:

-  // put the object in the initial state
+  // GetXXXFileName helpers: return ('/' terminated) directory names
+  static wxString GetGlobalDir();
+  static wxString GetLocalDir();
+
+  // common part of all ctors (assumes that m_str{Local|Global}File are already
+  // initialized

   void Init();
 
   void Init();
 

+  // common part of from dtor and DeleteAll
+  void CleanUp();
+

   // parse the whole file
   void Parse(wxTextFile& file, bool bLocal);
 
   // parse the whole file
   void Parse(wxTextFile& file, bool bLocal);
 


@@ -194,102 +248,105 @@ private:
   ConfigGroup *m_pRootGroup,      // the top (unnamed) group
               *m_pCurrentGroup;   // the current group
 
   ConfigGroup *m_pRootGroup,      // the top (unnamed) group
               *m_pCurrentGroup;   // the current group
 

-//protected: --- if wxFileConfig::ConfigEntry is not public, functions in
-//               ConfigGroup such as Find/AddEntry can't return "ConfigEntry *"

 public:
   WX_DEFINE_SORTED_ARRAY(ConfigEntry *, ArrayEntries);
   WX_DEFINE_SORTED_ARRAY(ConfigGroup *, ArrayGroups);
 public:
   WX_DEFINE_SORTED_ARRAY(ConfigEntry *, ArrayEntries);
   WX_DEFINE_SORTED_ARRAY(ConfigGroup *, ArrayGroups);

+};
+
+class ConfigEntry
+{
+private:
+  ConfigGroup  *m_pParent;      // group that contains us
+  wxString      m_strName,      // entry name
+                m_strValue;     //       value
+  bool          m_bDirty,       // changed since last read?
+                m_bImmutable;   // can be overriden locally?
+  int           m_nLine;        // used if m_pLine == NULL only
+  LineList     *m_pLine;        // pointer to our line in the linked list
+                                // or NULL if it was found in global file
+
+public:
+  ConfigEntry(ConfigGroup *pParent, const wxString& strName, int nLine);
+
+  // simple accessors
+  const wxString& Name()        const { return m_strName;    }
+  const wxString& Value()       const { return m_strValue;   }
+  ConfigGroup    *Group()       const { return m_pParent;    }
+  bool            IsDirty()     const { return m_bDirty;     }
+  bool            IsImmutable() const { return m_bImmutable; }
+  bool            IsLocal()     const { return m_pLine != 0; }
+  int             Line()        const { return m_nLine;      }
+  LineList       *GetLine()     const { return m_pLine;      }
+
+  // modify entry attributes
+  void SetValue(const wxString& strValue, bool bUser = TRUE);
+  void SetDirty();
+  void SetLine(LineList *pLine);
+};
+
+class ConfigGroup
+{
+private:
+  wxFileConfig *m_pConfig;        // config object we belong to
+  ConfigGroup  *m_pParent;        // parent group (NULL for root group)
+  wxFileConfig::ArrayEntries  m_aEntries;       // entries in this group
+  wxFileConfig::ArrayGroups   m_aSubgroups;     // subgroups
+  wxString      m_strName;        // group's name
+  bool          m_bDirty;         // if FALSE => all subgroups are not dirty
+  LineList     *m_pLine;          // pointer to our line in the linked list
+  ConfigEntry  *m_pLastEntry;     // last entry/subgroup of this group in the
+  ConfigGroup  *m_pLastGroup;     // local file (we insert new ones after it)
+
+  // DeleteSubgroupByName helper
+  bool DeleteSubgroup(ConfigGroup *pGroup);
+
+public:
+  // ctor
+  ConfigGroup(ConfigGroup *pParent, const wxString& strName, wxFileConfig *);
+
+  // dtor deletes all entries and subgroups also
+  ~ConfigGroup();
+
+  // simple accessors
+  const wxString& Name()    const { return m_strName; }
+  ConfigGroup    *Parent()  const { return m_pParent; }
+  wxFileConfig   *Config()  const { return m_pConfig; }
+  bool            IsDirty() const { return m_bDirty;  }
+
+  const wxFileConfig::ArrayEntries& Entries() const { return m_aEntries;   }
+  const wxFileConfig::ArrayGroups&  Groups()  const { return m_aSubgroups; }
+  bool  IsEmpty() const { return Entries().IsEmpty() && Groups().IsEmpty(); }
+
+  // find entry/subgroup (NULL if not found)
+  ConfigGroup *FindSubgroup(const wxChar *szName) const;
+  ConfigEntry *FindEntry   (const wxChar *szName) const;
+
+  // delete entry/subgroup, return FALSE if doesn't exist
+  bool DeleteSubgroupByName(const wxChar *szName);
+  bool DeleteEntry(const wxChar *szName);
+
+  // create new entry/subgroup returning pointer to newly created element
+  ConfigGroup *AddSubgroup(const wxString& strName);
+  ConfigEntry *AddEntry   (const wxString& strName, int nLine = wxNOT_FOUND);
+
+  // will also recursively set parent's dirty flag
+  void SetDirty();
+  void SetLine(LineList *pLine);
+
+  // rename: no checks are done to ensure that the name is unique!
+  void Rename(const wxString& newName);
+
+  //
+  wxString GetFullName() const;
+
+  // get the last line belonging to an entry/subgroup of this group
+  LineList *GetGroupLine();     // line which contains [group]
+  LineList *GetLastEntryLine(); // after which our subgroups start
+  LineList *GetLastGroupLine(); // after which the next group starts

 
 

-  class ConfigEntry
-  {
-  private:
-    ConfigGroup  *m_pParent;      // group that contains us
-    wxString      m_strName,      // entry name
-                  m_strValue;     //       value
-    bool          m_bDirty,       // changed since last read?
-                  m_bImmutable;   // can be overriden locally?
-    int           m_nLine;        // used if m_pLine == NULL only
-    LineList     *m_pLine;        // pointer to our line in the linked list
-                                  // or NULL if it was found in global file
-
-  public:
-    ConfigEntry(ConfigGroup *pParent, const wxString& strName, int nLine);
-
-    // simple accessors
-    const wxString& Name()        const { return m_strName;    }
-    const wxString& Value()       const { return m_strValue;   }
-    ConfigGroup    *Group()       const { return m_pParent;    }
-    bool            IsDirty()     const { return m_bDirty;     }
-    bool            IsImmutable() const { return m_bImmutable; }
-    bool            IsLocal()     const { return m_pLine != 0; }
-    int             Line()        const { return m_nLine;      }
-    LineList       *GetLine()     const { return m_pLine;      }
-
-    // modify entry attributes
-    void SetValue(const wxString& strValue, bool bUser = TRUE);
-    void SetDirty();
-    void SetLine(LineList *pLine);
-  };
-
-protected:
-  class ConfigGroup
-  {
-  private:
-    wxFileConfig *m_pConfig;      // config object we belong to
-    ConfigGroup  *m_pParent;      // parent group (NULL for root group)
-    ArrayEntries  m_aEntries;     // entries in this group
-    ArrayGroups   m_aSubgroups;   // subgroups
-    wxString      m_strName;      // group's name
-    bool          m_bDirty;       // if FALSE => all subgroups are not dirty
-    LineList     *m_pLine;        // pointer to our line in the linked list
-    ConfigEntry  *m_pLastEntry;   // last entry of this group in the local file
-    ConfigGroup  *m_pLastGroup;   // last subgroup
-
-  public:
-    // ctor
-    ConfigGroup(ConfigGroup *pParent, const wxString& strName, wxFileConfig *);
-
-    // dtor deletes all entries and subgroups also
-    ~ConfigGroup();
-
-    // simple accessors
-    const wxString& Name()    const { return m_strName; }
-    ConfigGroup    *Parent()  const { return m_pParent; }
-    wxFileConfig   *Config()  const { return m_pConfig; }
-    bool            IsDirty() const { return m_bDirty;  }
-
-    bool  IsEmpty() const { return Entries().IsEmpty() && Groups().IsEmpty(); }
-    const ArrayEntries& Entries() const { return m_aEntries;   }
-    const ArrayGroups&  Groups()  const { return m_aSubgroups; }
-
-    // find entry/subgroup (NULL if not found)
-    ConfigGroup *FindSubgroup(const char *szName) const;
-    ConfigEntry *FindEntry   (const char *szName) const;
-
-    // delete entry/subgroup, return FALSE if doesn't exist
-    bool DeleteSubgroup(const char *szName);
-    bool DeleteEntry(const char *szName);
-
-    // create new entry/subgroup returning pointer to newly created element
-    ConfigGroup *AddSubgroup(const wxString& strName);
-    ConfigEntry *AddEntry   (const wxString& strName, int nLine = NOT_FOUND);
-
-    // will also recursively set parent's dirty flag
-    void SetDirty();
-    void SetLine(LineList *pLine);
-
-    // the new entries in this subgroup will be inserted after the last subgroup
-    // or, if there is none, after the last entry
-    void SetLastEntry(ConfigEntry *pLastEntry) { m_pLastEntry = pLastEntry; }
-    void SetLastGroup(ConfigGroup *pLastGroup) { m_pLastGroup = pLastGroup; }
-
-    wxString GetFullName() const;
-
-    // get the last line belonging to an entry/subgroup of this group
-    LineList *GetGroupLine();
-    LineList *GetLastEntryLine();
-    LineList *GetLastGroupLine();
-  };
+  // called by entries/subgroups when they're created/deleted
+  void SetLastEntry(ConfigEntry *pEntry) { m_pLastEntry = pEntry; }
+  void SetLastGroup(ConfigGroup *pGroup) { m_pLastGroup = pGroup; }

 };
 
 #endif  //_FILECONF_H
 };
 
 #endif  //_FILECONF_H