Added chapter on collection and container classes to contents

[wxWidgets.git] / src / common / filesys.cpp

diff --git a/src/common/filesys.cpp b/src/common/filesys.cpp
index e166f1b2bf235c440141c38df54a66ea3f03a6eb..197fec89413dbd81b9dcd95772a81a003cbfa669 100644 (file)
--- a/src/common/filesys.cpp
+++ b/src/common/filesys.cpp
@@ -3,6 +3,7 @@
 // Purpose:     wxFileSystem class - interface for opening files
 // Author:      Vaclav Slavik
 // Copyright:   (c) 1999 Vaclav Slavik
 // Purpose:     wxFileSystem class - interface for opening files
 // Author:      Vaclav Slavik
 // Copyright:   (c) 1999 Vaclav Slavik

+// CVS-ID:      $Id$

 // Licence:     wxWindows Licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows Licence
 /////////////////////////////////////////////////////////////////////////////
 


@@ -16,16 +17,16 @@
 #pragma hdrstop
 #endif
 
 #pragma hdrstop
 #endif
 

-#if !wxUSE_SOCKETS
-    #undef wxUSE_FS_INET
-    #define wxUSE_FS_INET 0
-#endif

 
 

-#if (wxUSE_FS_INET || wxUSE_FS_ZIP) && wxUSE_STREAMS
+#if wxUSE_FILESYSTEM

 
 #include "wx/wfstream.h"
 #include "wx/module.h"
 #include "wx/filesys.h"
 
 #include "wx/wfstream.h"
 #include "wx/module.h"
 #include "wx/filesys.h"

+#include "wx/mimetype.h"
+
+
+

 
 //--------------------------------------------------------------------------------
 // wxFileSystemHandler
 
 //--------------------------------------------------------------------------------
 // wxFileSystemHandler


@@ -33,14 +34,6 @@
 
 IMPLEMENT_ABSTRACT_CLASS(wxFileSystemHandler, wxObject)
 
 
 IMPLEMENT_ABSTRACT_CLASS(wxFileSystemHandler, wxObject)
 

-wxMimeTypesManager *wxFileSystemHandler::m_MimeMng = NULL;
-
-void wxFileSystemHandler::CleanUpStatics()
-{
-    if (m_MimeMng) delete m_MimeMng;
-    m_MimeMng = NULL;
-}
-

 
 wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
 {
 
 wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
 {


@@ -53,14 +46,13 @@ wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
     l2 = l;
     for (int i = l-1; i >= 0; i--) {
         c = loc[(unsigned int) i];
     l2 = l;
     for (int i = l-1; i >= 0; i--) {
         c = loc[(unsigned int) i];

-        if (c == _T('#')) l2 = i + 1;
-        if (c == _T('.')) {ext = loc.Right(l2-i-1); break;}
-        if ((c == _T('/')) || (c == _T('\\')) || (c == _T(':'))) {return wxEmptyString;}
+        if (c == wxT('#')) l2 = i + 1;
+        if (c == wxT('.')) {ext = loc.Right(l2-i-1); break;}
+        if ((c == wxT('/')) || (c == wxT('\\')) || (c == wxT(':'))) {return wxEmptyString;}

     }
 
     }
 

-    if (m_MimeMng == NULL) {
-        m_MimeMng = new wxMimeTypesManager;
-
+    static bool s_MinimalMimeEnsured = FALSE;
+    if (!s_MinimalMimeEnsured) {

         static const wxFileTypeInfo fallbacks[] =
         {
             wxFileTypeInfo("image/jpeg",
         static const wxFileTypeInfo fallbacks[] =
         {
             wxFileTypeInfo("image/jpeg",


@@ -93,12 +85,17 @@ wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
             wxFileTypeInfo()
         };
 
             wxFileTypeInfo()
         };
 

-        m_MimeMng -> AddFallbacks(fallbacks);
+        wxTheMimeTypesManager -> AddFallbacks(fallbacks);
+    }
+
+    ft = wxTheMimeTypesManager -> GetFileTypeFromExtension(ext);
+    if ( !ft || !ft -> GetMimeType(&mime) ) {
+        mime = wxEmptyString;

     }
 
     }
 

-    ft = m_MimeMng -> GetFileTypeFromExtension(ext);
-    if (ft && (ft -> GetMimeType(&mime))) return mime;
-    else return wxEmptyString;
+    delete ft;
+
+    return mime;

 }
 
 
 }
 
 


@@ -110,11 +107,11 @@ wxString wxFileSystemHandler::GetProtocol(const wxString& location) const
     bool fnd;
 
     fnd = FALSE;
     bool fnd;
 
     fnd = FALSE;

-    for (i = l-1; (i >= 0) && ((location[i] != _T('#')) || (!fnd)); i--) {
-        if ((location[i] == _T(':')) && (i != 1 /*win: C:\path*/)) fnd = TRUE;
+    for (i = l-1; (i >= 0) && ((location[i] != wxT('#')) || (!fnd)); i--) {
+        if ((location[i] == wxT(':')) && (i != 1 /*win: C:\path*/)) fnd = TRUE;

     }
     }

-    if (!fnd) return _T("file");
-    for (++i; (i < l) && (location[i] != _T(':')); i++) s << location[i];
+    if (!fnd) return wxT("file");
+    for (++i; (i < l) && (location[i] != wxT(':')); i++) s << location[i];

     return s;
 }
 
     return s;
 }
 


@@ -126,8 +123,8 @@ wxString wxFileSystemHandler::GetLeftLocation(const wxString& location) const
 
     fnd = FALSE;
     for (i = location.Length()-1; i >= 0; i--) {
 
     fnd = FALSE;
     for (i = location.Length()-1; i >= 0; i--) {

-        if ((location[i] == _T(':')) && (i != 1 /*win: C:\path*/)) fnd = TRUE;
-        else if (fnd && (location[i] == _T('#'))) return location.Left(i);
+        if ((location[i] == wxT(':')) && (i != 1 /*win: C:\path*/)) fnd = TRUE;
+        else if (fnd && (location[i] == wxT('#'))) return location.Left(i);

     }
     return wxEmptyString;
 }
     }
     return wxEmptyString;
 }


@@ -136,7 +133,7 @@ wxString wxFileSystemHandler::GetRightLocation(const wxString& location) const
 {
     int i, l = location.Length();
     int l2 = l + 1;
 {
     int i, l = location.Length();
     int l2 = l + 1;

-    for (i = l-1; (i >= 0) && ((location[i] != _T(':')) || (i == 1) || (location[i-2] == _T(':'))); i--) {if (location[i] == _T('#')) l2 = i + 1;}
+    for (i = l-1; (i >= 0) && ((location[i] != wxT(':')) || (i == 1) || (location[i-2] == wxT(':'))); i--) {if (location[i] == wxT('#')) l2 = i + 1;}

     if (i == 0) return wxEmptyString;
     else return location.Mid(i + 1, l2 - i - 2);
 }
     if (i == 0) return wxEmptyString;
     else return location.Mid(i + 1, l2 - i - 2);
 }


@@ -148,12 +145,24 @@ wxString wxFileSystemHandler::GetAnchor(const wxString& location) const
 
     for (int i = l-1; i >= 0; i--) {
         c = location[i];
 
     for (int i = l-1; i >= 0; i--) {
         c = location[i];

-        if (c == _T('#')) return location.Right(l-i-1);
-        else if ((c == _T('.')) || (c == _T('/')) || (c == _T('\\')) || (c == _T(':'))) return wxEmptyString;
+        if (c == wxT('#')) return location.Right(l-i-1);
+        else if ((c == wxT('.')) || (c == wxT('/')) || (c == wxT('\\')) || (c == wxT(':'))) return wxEmptyString;

     }
     return wxEmptyString;
 }
 
     }
     return wxEmptyString;
 }
 

+
+wxString wxFileSystemHandler::FindFirst(const wxString& WXUNUSED(spec),
+                                        int WXUNUSED(flags))
+{
+    return wxEmptyString;
+}
+
+wxString wxFileSystemHandler::FindNext()
+{
+    return wxEmptyString;
+}
+

 //--------------------------------------------------------------------------------
 // wxLocalFSHandler
 //--------------------------------------------------------------------------------
 //--------------------------------------------------------------------------------
 // wxLocalFSHandler
 //--------------------------------------------------------------------------------


@@ -163,25 +172,43 @@ class wxLocalFSHandler : public wxFileSystemHandler
     public:
         virtual bool CanOpen(const wxString& location);
         virtual wxFSFile* OpenFile(wxFileSystem& fs, const wxString& location);
     public:
         virtual bool CanOpen(const wxString& location);
         virtual wxFSFile* OpenFile(wxFileSystem& fs, const wxString& location);

+        virtual wxString FindFirst(const wxString& spec, int flags = 0);
+        virtual wxString FindNext();

 };
 
 
 bool wxLocalFSHandler::CanOpen(const wxString& location)
 {
 };
 
 
 bool wxLocalFSHandler::CanOpen(const wxString& location)
 {

-    return GetProtocol(location) == _T("file");
+    return GetProtocol(location) == wxT("file");

 }
 
 wxFSFile* wxLocalFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& location)
 {
     wxString right = GetRightLocation(location);
 }
 
 wxFSFile* wxLocalFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& location)
 {
     wxString right = GetRightLocation(location);

-    if (wxFileExists(right))
-        return new wxFSFile(new wxFileInputStream(right),
-                            right,
-                            GetMimeTypeFromExt(location),
-                            GetAnchor(location));
-    else return (wxFSFile*) NULL;
+    if (!wxFileExists(right))
+        return (wxFSFile*) NULL;
+
+    return new wxFSFile(new wxFileInputStream(right),
+                        right,
+                        GetMimeTypeFromExt(location),
+                        GetAnchor(location),
+                        wxDateTime(wxFileModificationTime(right)));
+
+}
+
+wxString wxLocalFSHandler::FindFirst(const wxString& spec, int flags)
+{
+    wxString right = GetRightLocation(spec);
+    return wxFindFirstFile(right, flags);
+}
+
+wxString wxLocalFSHandler::FindNext()
+{
+    return wxFindNextFile();

 }
 
 }
 

+
+

 //-----------------------------------------------------------------------------
 // wxFileSystem
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 // wxFileSystem
 //-----------------------------------------------------------------------------


@@ -192,55 +219,95 @@ IMPLEMENT_DYNAMIC_CLASS(wxFileSystem, wxObject)
 wxList wxFileSystem::m_Handlers;
 
 
 wxList wxFileSystem::m_Handlers;
 
 

+static wxString MakeCorrectPath(const wxString& path)
+{
+    wxString p(path);
+    wxString r;
+    int i, j, cnt;
+    
+    cnt = p.Length();
+    for (i = 0; i < cnt; i++)
+      if (p.GetChar(i) == wxT('\\')) p.GetWritableChar(i) = wxT('/'); // Want to be windows-safe
+        
+    if (p.Left(2) == wxT("./")) { p = p.Mid(2); cnt -= 2; }
+    
+    if (cnt < 3) return p;
+    
+    r << p.GetChar(0) << p.GetChar(1);
+    
+    // skip trailing ../.., if any
+    for (i = 2; i < cnt && (p.GetChar(i) == wxT('/') || p.GetChar(i) == wxT('.')); i++) r << p.GetChar(i);
+    
+    // remove back references: translate dir1/../dir2 to dir2
+    for (; i < cnt; i++)
+    {
+        r << p.GetChar(i);
+        if (p.GetChar(i) == wxT('/') && p.GetChar(i-1) == wxT('.') && p.GetChar(i-2) == wxT('.'))
+        {
+            for (j = r.Length() - 2; j >= 0 && r.GetChar(j) != wxT('/') && r.GetChar(j) != wxT(':'); j--) {}
+            if (j >= 0 && r.GetChar(j) != wxT(':'))
+            {
+                for (j = j - 1; j >= 0 && r.GetChar(j) != wxT('/') && r.GetChar(j) != wxT(':'); j--) {}
+                r.Remove(j + 1);
+            }
+        }
+    }
+        
+    for (; i < cnt; i++) r << p.GetChar(i);
+        
+    return r;
+}
+

 
 void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
 {
     int i, pathpos = -1;
 
 void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
 {
     int i, pathpos = -1;

-    m_Path = location;

 
 

-    for (i = m_Path.Length()-1; i >= 0; i--)
-        if (m_Path[(unsigned int) i] == _T('\\')) m_Path.GetWritableChar(i) = _T('/');         // wanna be windows-safe
+    m_Path = MakeCorrectPath(location);

 
 

-    if (is_dir == FALSE)
+    if (is_dir)
+    {
+        if (m_Path.Length() > 0 && m_Path.Last() != wxT('/') && m_Path.Last() != wxT(':'))
+               m_Path << wxT('/');
+    }
+    
+    else

     {
         for (i = m_Path.Length()-1; i >= 0; i--)
     {
         for (i = m_Path.Length()-1; i >= 0; i--)

-       {
-            if (m_Path[(unsigned int) i] == _T('/'))
-           {
-                if ((i > 1) && (m_Path[(unsigned int) (i-1)] == _T('/')) && (m_Path[(unsigned int) (i-2)] == _T(':')))
-               {
+       {
+            if (m_Path[(unsigned int) i] == wxT('/'))
+               {
+                if ((i > 1) && (m_Path[(unsigned int) (i-1)] == wxT('/')) && (m_Path[(unsigned int) (i-2)] == wxT(':')))
+                       {

                     i -= 2;
                     continue;
                 }
                 else
                     i -= 2;
                     continue;
                 }
                 else

-               {
+                       {

                     pathpos = i;
                     break;
                 }
             }
                     pathpos = i;
                     break;
                 }
             }

-        else if (m_Path[(unsigned int) i] == _T(':')) {
-            pathpos = i;
-        break;
+            else if (m_Path[(unsigned int) i] == wxT(':')) {
+                pathpos = i;
+                break;
+            }

         }
         }

-    }

         if (pathpos == -1)
         if (pathpos == -1)

-       {
+       {

             for (i = 0; i < (int) m_Path.Length(); i++)
             for (i = 0; i < (int) m_Path.Length(); i++)

-           {
-                if (m_Path[(unsigned int) i] == _T(':'))
-               {
-                    //m_Path << _T('/');
+           {
+                if (m_Path[(unsigned int) i] == wxT(':'))
+                       {

                     m_Path.Remove(i+1);
                     break;
                 }
             }
             if (i == (int) m_Path.Length())
                     m_Path.Remove(i+1);
                     break;
                 }
             }
             if (i == (int) m_Path.Length())

-               m_Path = wxEmptyString;
+               m_Path = wxEmptyString;

         }
         else
         }
         else

-       {
-            if (m_Path[m_Path.Length()-1] != _T('/'))
-               m_Path << _T('/');
+       {

             m_Path.Remove(pathpos+1);
         }
     }
             m_Path.Remove(pathpos+1);
         }
     }


@@ -250,8 +317,8 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
 
 wxFSFile* wxFileSystem::OpenFile(const wxString& location)
 {
 
 wxFSFile* wxFileSystem::OpenFile(const wxString& location)
 {

-    wxString loc = location;
-    int i, ln;
+    wxString loc = MakeCorrectPath(location);
+    unsigned i, ln;

     char meta;
     wxFSFile *s = NULL;
     wxNode *node;
     char meta;
     wxFSFile *s = NULL;
     wxNode *node;


@@ -260,25 +327,25 @@ wxFSFile* wxFileSystem::OpenFile(const wxString& location)
     meta = 0;
     for (i = 0; i < ln; i++)
     {
     meta = 0;
     for (i = 0; i < ln; i++)
     {

-        if (loc[(unsigned int) i] == _T('\\')) loc.GetWritableChar(i) = _T('/');         // wanna be windows-safe
-        if (!meta) switch (loc[(unsigned int) i])
-       {
-            case _T('/') : case _T(':') : case _T('#') : meta = loc[(unsigned int) i];
-        }
+        if (!meta) 
+            switch (loc[i])
+               {
+                case wxT('/') : case wxT(':') : case wxT('#') : meta = loc[i];
+            }

     }
     m_LastName = wxEmptyString;
 
     // try relative paths first :
     }
     m_LastName = wxEmptyString;
 
     // try relative paths first :

-    if (meta != _T(':'))
+    if (meta != wxT(':'))

     {
         node = m_Handlers.GetFirst();
         while (node)
     {
         node = m_Handlers.GetFirst();
         while (node)

-       {
+       {

             wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData();
             wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData();

-            if (h->CanOpen(m_Path + location))
-           {
-                s = h->OpenFile(*this, m_Path + location);
-                if (s) { m_LastName = m_Path + location; break; }
+            if (h->CanOpen(m_Path + loc))
+               {
+                s = h->OpenFile(*this, m_Path + loc);
+                if (s) { m_LastName = m_Path + loc; break; }

             }
             node = node->GetNext();
         }
             }
             node = node->GetNext();
         }


@@ -289,12 +356,12 @@ wxFSFile* wxFileSystem::OpenFile(const wxString& location)
     {
         node = m_Handlers.GetFirst();
         while (node)
     {
         node = m_Handlers.GetFirst();
         while (node)

-       {
+       {

             wxFileSystemHandler *h = (wxFileSystemHandler*) node->GetData();
             wxFileSystemHandler *h = (wxFileSystemHandler*) node->GetData();

-            if (h->CanOpen(location))
-           {
-                s = h->OpenFile(*this, location);
-                if (s) { m_LastName = location; break; }
+            if (h->CanOpen(loc))
+           {
+                s = h->OpenFile(*this, loc);
+                if (s) { m_LastName = loc; break; }

             }
             node = node->GetNext();
         }
             }
             node = node->GetNext();
         }


@@ -303,6 +370,48 @@ wxFSFile* wxFileSystem::OpenFile(const wxString& location)
 }
 
 
 }
 
 

+
+wxString wxFileSystem::FindFirst(const wxString& spec, int flags)
+{
+    wxNode *node;
+    wxString spec2(spec);
+    
+    m_FindFileHandler = NULL;
+
+    for (int i = spec2.Length()-1; i >= 0; i--)
+        if (spec2[(unsigned int) i] == wxT('\\')) spec2.GetWritableChar(i) = wxT('/'); // Want to be windows-safe
+
+    node = m_Handlers.GetFirst();
+    while (node)
+    {
+        m_FindFileHandler = (wxFileSystemHandler*) node -> GetData();
+        if (m_FindFileHandler -> CanOpen(m_Path + spec2)) 
+            return m_FindFileHandler -> FindFirst(m_Path + spec2, flags);
+        node = node->GetNext();
+    } 
+
+    node = m_Handlers.GetFirst();
+    while (node)
+    {
+        m_FindFileHandler = (wxFileSystemHandler*) node -> GetData();
+        if (m_FindFileHandler -> CanOpen(spec2))
+            return m_FindFileHandler -> FindFirst(spec2, flags);
+        node = node->GetNext();
+    } 
+    
+    return wxEmptyString;   
+}
+
+
+
+wxString wxFileSystem::FindNext()
+{
+    if (m_FindFileHandler == NULL) return wxEmptyString;
+    else return m_FindFileHandler -> FindNext();
+}
+
+
+

 void wxFileSystem::AddHandler(wxFileSystemHandler *handler)
 {
     m_Handlers.Append(handler);
 void wxFileSystem::AddHandler(wxFileSystemHandler *handler)
 {
     m_Handlers.Append(handler);


@@ -316,6 +425,8 @@ void wxFileSystem::CleanUpHandlers()
 }
 
 
 }
 
 

+
+

 ///// Module:
 
 class wxFileSystemModule : public wxModule
 ///// Module:
 
 class wxFileSystemModule : public wxModule


@@ -329,16 +440,15 @@ class wxFileSystemModule : public wxModule
             return TRUE;
         }
         virtual void OnExit()
             return TRUE;
         }
         virtual void OnExit()

-       {
-           wxFileSystemHandler::CleanUpStatics();
+       {

             wxFileSystem::CleanUpHandlers();
             wxFileSystem::CleanUpHandlers();

-       }
+       }

 };
 
 IMPLEMENT_DYNAMIC_CLASS(wxFileSystemModule, wxModule)
 
 #endif
 };
 
 IMPLEMENT_DYNAMIC_CLASS(wxFileSystemModule, wxModule)
 
 #endif

-  // (wxUSE_FS_INET || wxUSE_FS_ZIP) && wxUSE_STREAMS
+  // wxUSE_FILESYSTEM