Added wxPrivateDropTarget

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

diff --git a/include/wx/fileconf.h b/include/wx/fileconf.h
index 88ffaf9dcccffee6a1e7cc0f73cbc55852be87da..e9d45d9e1106b7d451e433cd94db6af01590f7a5 100644 (file)
--- a/include/wx/fileconf.h
+++ b/include/wx/fileconf.h
@@ -1,32 +1,42 @@
-/*****************************************************************************\
- * 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
 

+#ifdef __GNUG__
+#pragma interface "fileconf.h"
+#endif
+
+#include "wx/defs.h"
+
+#ifdef wxUSE_CONFIG
+
+#include "wx/confbase.h"
+#include "wx/textfile.h"
+#include "wx/string.h"
+
+

 // ----------------------------------------------------------------------------
 // wxFileConfig
 // ----------------------------------------------------------------------------
 
 /*
 // ----------------------------------------------------------------------------
 // wxFileConfig
 // ----------------------------------------------------------------------------
 
 /*

-  wxFileConfig derives from base Config and implements file based config class, 
+  wxFileConfig derives from base Config and implements file based config class,

   i.e. it uses ASCII disk files to store the information. These files are
   i.e. it uses ASCII disk files to store the information. These files are

-  alternatively called INI, .conf or .rc in the documentation. They are 
+  alternatively called INI, .conf or .rc in the documentation. They are

   organized in groups or sections, which can nest (i.e. a group contains
   subgroups, which contain their own subgroups &c). Each group has some
   organized in groups or sections, which can nest (i.e. a group contains
   subgroups, which contain their own subgroups &c). Each group has some

-  number of entries, which are "key = value" pairs. More precisely, the format 
+  number of entries, which are "key = value" pairs. More precisely, the format

   is:
 
   # comments are allowed after either ';' or '#' (Win/UNIX standard)
   is:
 
   # comments are allowed after either ';' or '#' (Win/UNIX standard)


@@ -70,10 +80,22 @@
   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 : public wxConfig
+class WXDLLEXPORT 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


@@ -90,9 +112,27 @@ public:
   static wxString GetLocalFileName(const char *szFile);
 
   // ctor & dtor
   static wxString GetLocalFileName(const char *szFile);
 
   // ctor & dtor

-    // if strGlobal is empty, only local config file is used
-  wxFileConfig(const wxString& strLocal,
-               const wxString& strGlobal = "");
+
+#if 0
+    // the names of local and global (if not disabled) config files are
+    // constructed using Get{Local|Global}FileName functions described above
+    // (szAppName is just the (short) name of your application)
+  wxFileConfig(const char *szAppName, bool bLocalOnly = FALSE);
+    // this ctor allows you to specify custom names for both files (if strGlobal
+    // isn't a full path, it's considered to be relative to the standard
+    // directory, i.e. /etc under Unix and %windir% under Windows, if strLocal
+    // is not an absolute path, it's considered to be relative to the user's
+    // directory). If either of strings is empty, the corresponding file is not
+    // used.
+  wxFileConfig(const wxString& strLocal, const wxString& strGlobal);
+#endif
+
+   // 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 = "",
+               const wxString& localFilename = "", const wxString& globalFilename = "",
+               long style = wxCONFIG_USE_LOCAL_FILE);
+

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


@@ -100,22 +140,44 @@ 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 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 bool Write(const char *szKey, const char *szValue);
-  virtual bool Write(const char *szKey, long lValue);
+  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 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); }
+
+  virtual bool Write(const wxString& key, const wxString& szValue);
+  virtual bool Write(const wxString& key, long lValue);
+

   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 DeleteEntry(const wxString& key, bool bGroupIfEmptyAlso);
+  virtual bool DeleteGroup(const wxString& szKey);

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


@@ -127,13 +189,16 @@ public:
   class LineList
   {
   public:
   class LineList
   {
   public:

+    void      SetNext(LineList *pNext)  { m_pNext = pNext; }
+    void      SetPrev(LineList *pPrev)  { m_pPrev = pPrev; }
+

     // ctor
     // ctor

-    LineList(const wxString& str, LineList *pNext = NULL) : m_strLine(str) 
-      { SetNext(pNext); }
-    
-    // 
+    LineList(const wxString& str, LineList *pNext = (LineList *) NULL) : m_strLine(str)
+      { SetNext(pNext); SetPrev((LineList *) NULL); }
+
+    //

     LineList *Next() const              { return m_pNext;  }
     LineList *Next() const              { return m_pNext;  }

-    void      SetNext(LineList *pNext)  { m_pNext = pNext; }
+    LineList *Prev() const              { return m_pPrev;  }

 
     //
     void SetText(const wxString& str) { m_strLine = str;  }
 
     //
     void SetText(const wxString& str) { m_strLine = str;  }


@@ -141,19 +206,29 @@ public:
 
   private:
     wxString  m_strLine;      // line contents
 
   private:
     wxString  m_strLine;      // line contents

-    LineList *m_pNext;        // next node
+    LineList *m_pNext,        // next node
+             *m_pPrev;        // previous one

   };
   };

-  
+

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

-  LineList *LineListInsert(const wxString& str, 
-                           LineList *pLine);    // NULL => Append()
+  LineList *LineListInsert(const wxString& str,
+                           LineList *pLine);    // NULL => Prepend()
+  void      LineListRemove(LineList *pLine);

   bool      LineListIsEmpty();
 
 private:
   bool      LineListIsEmpty();
 
 private:

-  // put the object in the initial state
+  // GetXXXFileame 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);
 


@@ -175,8 +250,8 @@ private:
 //protected: --- if wxFileConfig::ConfigEntry is not public, functions in
 //               ConfigGroup such as Find/AddEntry can't return "ConfigEntry *"
 public:
 //protected: --- if wxFileConfig::ConfigEntry is not public, functions in
 //               ConfigGroup such as Find/AddEntry can't return "ConfigEntry *"
 public:

-  WX_DEFINE_ARRAY(ConfigEntry *, ArrayEntries);
-  WX_DEFINE_ARRAY(ConfigGroup *, ArrayGroups);
+  WX_DEFINE_SORTED_ARRAY(ConfigEntry *, ArrayEntries);
+  WX_DEFINE_SORTED_ARRAY(ConfigGroup *, ArrayGroups);

 
   class ConfigEntry
   {
 
   class ConfigEntry
   {


@@ -209,19 +284,21 @@ public:
     void SetLine(LineList *pLine);
   };
 
     void SetLine(LineList *pLine);
   };
 

-protected:

   class ConfigGroup
   {
   private:
   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
-    int           m_nLastEntry,   // last here means "last added"
-                  m_nLastGroup;   // 
+    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/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
 
   public:
     // ctor


@@ -236,16 +313,16 @@ protected:
     wxFileConfig   *Config()  const { return m_pConfig; }
     bool            IsDirty() const { return m_bDirty;  }
 
     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; }
     const ArrayEntries& Entries() const { return m_aEntries;   }
     const ArrayGroups&  Groups()  const { return m_aSubgroups; }

+    bool  IsEmpty() const { return Entries().IsEmpty() && Groups().IsEmpty(); }

 
     // 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
 
     // 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 DeleteSubgroupByName(const char *szName);

     bool DeleteEntry(const char *szName);
 
     // create new entry/subgroup returning pointer to newly created element
     bool DeleteEntry(const char *szName);
 
     // create new entry/subgroup returning pointer to newly created element


@@ -256,14 +333,23 @@ protected:
     void SetDirty();
     void SetLine(LineList *pLine);
 
     void SetDirty();
     void SetLine(LineList *pLine);
 

+    //

     wxString GetFullName() const;
 
     // get the last line belonging to an entry/subgroup of this group
     wxString GetFullName() const;
 
     // get the last line belonging to an entry/subgroup of this group

-    LineList *GetGroupLine();
-    LineList *GetLastEntryLine();
-    LineList *GetLastGroupLine();
+    LineList *GetGroupLine();     // line which contains [group]
+    LineList *GetLastEntryLine(); // after which our subgroups start
+    LineList *GetLastGroupLine(); // after which the next group starts
+
+    // 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
+   // wxUSE_CONFIG
+
+#endif
+  //_FILECONF_H