]> git.saurik.com Git - wxWidgets.git/blobdiff - src/common/filesys.cpp
added FindFileInPath() (part of an otherwise rejected patch)
[wxWidgets.git] / src / common / filesys.cpp
index 4213f32dc4e48a190ae1c1a39cc10f32883a08af..61ec083da446e7c3728772e64bf26b7faca0f6bb 100644 (file)
@@ -1,32 +1,32 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        filesys.cpp
+// Name:        src/common/filesys.cpp
 // Purpose:     wxFileSystem class - interface for opening files
 // Author:      Vaclav Slavik
 // Copyright:   (c) 1999 Vaclav Slavik
 // CVS-ID:      $Id$
-// Licence:     wxWindows Licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
-#pragma implementation "filesys.h"
-#endif
-
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
 
 #if wxUSE_FILESYSTEM
 
+#include "wx/filesys.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/log.h"
+#endif
+
 #include "wx/wfstream.h"
 #include "wx/module.h"
-#include "wx/filesys.h"
 #include "wx/mimetype.h"
 #include "wx/filename.h"
-#include "wx/log.h"
-
+#include "wx/tokenzr.h"
 
 
 //--------------------------------------------------------------------------------
 IMPLEMENT_ABSTRACT_CLASS(wxFileSystemHandler, wxObject)
 
 
-#if wxUSE_MIMETYPE
-static wxFileTypeInfo *gs_FSMimeFallbacks = NULL;
-#endif
-
 wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
 {
     wxString ext, mime;
     wxString loc = GetRightLocation(location);
-    char c;
-    int l = loc.Length(), l2;
+    wxChar c;
+    int l = loc.length(), l2;
 
     l2 = l;
     for (int i = l-1; i >= 0; i--)
@@ -63,10 +59,41 @@ wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
     }
 
 #if wxUSE_MIMETYPE
-    static bool s_MinimalMimeEnsured = FALSE;
-    if (!s_MinimalMimeEnsured) {
-        wxTheMimeTypesManager->AddFallbacks(gs_FSMimeFallbacks);
-        s_MinimalMimeEnsured = TRUE;
+    static bool s_MinimalMimeEnsured = false;
+    if (!s_MinimalMimeEnsured)
+    {
+        static const wxFileTypeInfo fallbacks[] =
+        {
+            wxFileTypeInfo(_T("image/jpeg"),
+                           wxEmptyString,
+                           wxEmptyString,
+                           _T("JPEG image (from fallback)"),
+                           _T("jpg"), _T("jpeg"), _T("JPG"), _T("JPEG"), NULL),
+            wxFileTypeInfo(_T("image/gif"),
+                           wxEmptyString,
+                           wxEmptyString,
+                           _T("GIF image (from fallback)"),
+                           _T("gif"), _T("GIF"), NULL),
+            wxFileTypeInfo(_T("image/png"),
+                           wxEmptyString,
+                           wxEmptyString,
+                           _T("PNG image (from fallback)"),
+                           _T("png"), _T("PNG"), NULL),
+            wxFileTypeInfo(_T("image/bmp"),
+                           wxEmptyString,
+                           wxEmptyString,
+                           _T("windows bitmap image (from fallback)"),
+                           _T("bmp"), _T("BMP"), NULL),
+            wxFileTypeInfo(_T("text/html"),
+                           wxEmptyString,
+                           wxEmptyString,
+                           _T("HTML document (from fallback)"),
+                           _T("htm"), _T("html"), _T("HTM"), _T("HTML"), NULL),
+            // must terminate the table with this!
+            wxFileTypeInfo()
+        };
+        wxTheMimeTypesManager->AddFallbacks(fallbacks);
+        s_MinimalMimeEnsured = true;
     }
 
     wxFileType *ft = wxTheMimeTypesManager->GetFileTypeFromExtension(ext);
@@ -79,15 +106,15 @@ wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
 
     return mime;
 #else
-    if ( ext.IsSameAs(wxT("htm"), FALSE) || ext.IsSameAs(_T("html"), FALSE) )
+    if ( ext.IsSameAs(wxT("htm"), false) || ext.IsSameAs(_T("html"), false) )
         return wxT("text/html");
-    if ( ext.IsSameAs(wxT("jpg"), FALSE) || ext.IsSameAs(_T("jpeg"), FALSE) )
+    if ( ext.IsSameAs(wxT("jpg"), false) || ext.IsSameAs(_T("jpeg"), false) )
         return wxT("image/jpeg");
-    if ( ext.IsSameAs(wxT("gif"), FALSE) )
+    if ( ext.IsSameAs(wxT("gif"), false) )
         return wxT("image/gif");
-    if ( ext.IsSameAs(wxT("png"), FALSE) )
+    if ( ext.IsSameAs(wxT("png"), false) )
         return wxT("image/png");
-    if ( ext.IsSameAs(wxT("bmp"), FALSE) )
+    if ( ext.IsSameAs(wxT("bmp"), false) )
         return wxT("image/bmp");
     return wxEmptyString;
 #endif
@@ -98,12 +125,11 @@ wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
 wxString wxFileSystemHandler::GetProtocol(const wxString& location) const
 {
     wxString s = wxEmptyString;
-    int i, l = location.Length();
-    bool fnd;
+    int i, l = location.length();
+    bool fnd = false;
 
-    fnd = FALSE;
     for (i = l-1; (i >= 0) && ((location[i] != wxT('#')) || (!fnd)); i--) {
-        if ((location[i] == wxT(':')) && (i != 1 /*win: C:\path*/)) fnd = TRUE;
+        if ((location[i] == wxT(':')) && (i != 1 /*win: C:\path*/)) fnd = true;
     }
     if (!fnd) return wxT("file");
     for (++i; (i < l) && (location[i] != wxT(':')); i++) s << location[i];
@@ -114,11 +140,10 @@ wxString wxFileSystemHandler::GetProtocol(const wxString& location) const
 wxString wxFileSystemHandler::GetLeftLocation(const wxString& location) const
 {
     int i;
-    bool fnd;
+    bool fnd = false;
 
-    fnd = FALSE;
-    for (i = location.Length()-1; i >= 0; i--) {
-        if ((location[i] == wxT(':')) && (i != 1 /*win: C:\path*/)) fnd = TRUE;
+    for (i = location.length()-1; i >= 0; i--) {
+        if ((location[i] == wxT(':')) && (i != 1 /*win: C:\path*/)) fnd = true;
         else if (fnd && (location[i] == wxT('#'))) return location.Left(i);
     }
     return wxEmptyString;
@@ -126,11 +151,11 @@ wxString wxFileSystemHandler::GetLeftLocation(const wxString& location) const
 
 wxString wxFileSystemHandler::GetRightLocation(const wxString& location) const
 {
-    int i, l = location.Length();
+    int i, l = location.length();
     int l2 = l + 1;
 
-    for (i = l-1; 
-         (i >= 0) && 
+    for (i = l-1;
+         (i >= 0) &&
          ((location[i] != wxT(':')) || (i == 1) || (location[i-2] == wxT(':')));
          i--)
     {
@@ -142,8 +167,8 @@ wxString wxFileSystemHandler::GetRightLocation(const wxString& location) const
 
 wxString wxFileSystemHandler::GetAnchor(const wxString& location) const
 {
-    char c;
-    int l = location.Length();
+    wxChar c;
+    int l = location.length();
 
     for (int i = l-1; i >= 0; i--) {
         c = location[i];
@@ -187,7 +212,16 @@ wxFSFile* wxLocalFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString&
     if (!wxFileExists(fullpath))
         return (wxFSFile*) NULL;
 
-    return new wxFSFile(new wxFFileInputStream(fullpath),
+    // we need to check whether we can really read from this file, otherwise
+    // wxFSFile is not going to work
+    wxFFileInputStream *is = new wxFFileInputStream(fullpath);
+    if ( !is->Ok() )
+    {
+        delete is;
+        return (wxFSFile*) NULL;
+    }
+
+    return new wxFSFile(is,
                         right,
                         GetMimeTypeFromExt(location),
                         GetAnchor(location)
@@ -227,7 +261,7 @@ static wxString MakeCorrectPath(const wxString& path)
     wxString r;
     int i, j, cnt;
 
-    cnt = p.Length();
+    cnt = p.length();
     for (i = 0; i < cnt; i++)
       if (p.GetChar(i) == wxT('\\')) p.GetWritableChar(i) = wxT('/'); // Want to be windows-safe
 
@@ -246,7 +280,7 @@ static wxString MakeCorrectPath(const wxString& path)
         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--) {}
+            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--) {}
@@ -269,13 +303,13 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
 
     if (is_dir)
     {
-        if (m_Path.Length() > 0 && m_Path.Last() != wxT('/') && m_Path.Last() != wxT(':'))
+        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] == wxT('/'))
             {
@@ -297,7 +331,7 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
         }
         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] == wxT(':'))
                 {
@@ -305,7 +339,7 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
                     break;
                 }
             }
-            if (i == (int) m_Path.Length())
+            if (i == (int) m_Path.length())
                 m_Path = wxEmptyString;
         }
         else
@@ -321,11 +355,11 @@ wxFSFile* wxFileSystem::OpenFile(const wxString& location)
 {
     wxString loc = MakeCorrectPath(location);
     unsigned i, ln;
-    char meta;
+    wxChar meta;
     wxFSFile *s = NULL;
-    wxNode *node;
+    wxList::compatibility_iterator node;
 
-    ln = loc.Length();
+    ln = loc.length();
     meta = 0;
     for (i = 0; i < ln; i++)
     {
@@ -377,12 +411,12 @@ wxFSFile* wxFileSystem::OpenFile(const wxString& location)
 
 wxString wxFileSystem::FindFirst(const wxString& spec, int flags)
 {
-    wxNode *node;
+    wxList::compatibility_iterator node;
     wxString spec2(spec);
 
     m_FindFileHandler = NULL;
 
-    for (int i = spec2.Length()-1; i >= 0; i--)
+    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();
@@ -414,7 +448,37 @@ wxString wxFileSystem::FindNext()
     else return m_FindFileHandler -> FindNext();
 }
 
+bool wxFileSystem::FindFileInPath(wxString *pStr,
+                                  const wxChar *path,
+                                  const wxChar *basename)
+{
+    // we assume that it's not empty
+    wxCHECK_MSG( !wxIsEmpty(basename), false,
+                _T("empty file name in wxFileSystem::FindFileInPath"));
+
+    // skip path separator in the beginning of the file name if present
+    if ( wxIsPathSeparator(*basename) )
+       basename++;
 
+    wxStringTokenizer tokenizer(path, wxPATH_SEP);
+    while ( tokenizer.HasMoreTokens() )
+    {
+        wxString strFile = tokenizer.GetNextToken();
+        if ( !wxEndsWithPathSeparator(strFile) )
+            strFile += wxFILE_SEP_PATH;
+        strFile += basename;
+
+        wxFSFile *file = OpenFile(strFile);
+        if ( file )
+        {
+            delete file;
+            *pStr = strFile;
+            return true;
+        }
+    }
+
+    return false;
+}
 
 void wxFileSystem::AddHandler(wxFileSystemHandler *handler)
 {
@@ -424,54 +488,53 @@ void wxFileSystem::AddHandler(wxFileSystemHandler *handler)
 
 void wxFileSystem::CleanUpHandlers()
 {
-    m_Handlers.DeleteContents(TRUE);
-    m_Handlers.Clear();
+    WX_CLEAR_LIST(wxList, m_Handlers);
 }
 
-const static wxString g_unixPathString(wxT("/"));
-const static wxString g_nativePathString(wxFILE_SEP_PATH);
+static const wxString g_unixPathString(wxT("/"));
+static const wxString g_nativePathString(wxFILE_SEP_PATH);
 
 // Returns the native path for a file URL
 wxFileName wxFileSystem::URLToFileName(const wxString& url)
 {
-       wxString path = url;
+    wxString path = url;
 
-       if ( path.Find(wxT("file://")) == 0 )
-       {
-               path = path.Mid(7);
-       }
+    if ( path.Find(wxT("file://")) == 0 )
+    {
+        path = path.Mid(7);
+    }
     else if ( path.Find(wxT("file:")) == 0 )
-       {
-               path = path.Mid(5);
-       }
-       // Remove preceding double slash on Mac Classic
+    {
+        path = path.Mid(5);
+    }
+    // Remove preceding double slash on Mac Classic
 #if defined(__WXMAC__) && !defined(__UNIX__)
     else if ( path.Find(wxT("//")) == 0 )
         path = path.Mid(2);
 #endif
-    
+
     path.Replace(wxT("%25"), wxT("%"));
     path.Replace(wxT("%3A"), wxT(":"));
 
 #ifdef __WXMSW__
-       // file urls either start with a forward slash (local harddisk),
+    // file urls either start with a forward slash (local harddisk),
     // otherwise they have a servername/sharename notation,
     // which only exists on msw and corresponds to a unc
-       if ( path[0u] == wxT('/') && path [1u] != wxT('/'))
-       {
-               path = path.Mid(1);
-       }
-       else if ( (url.Find(wxT("file://")) == 0) &&
+    if ( path[0u] == wxT('/') && path [1u] != wxT('/'))
+    {
+        path = path.Mid(1);
+    }
+    else if ( (url.Find(wxT("file://")) == 0) &&
               (path.Find(wxT('/')) != wxNOT_FOUND) &&
-              (path.Length() > 1) && (path[1u] != wxT(':')) )
-       {
-               path = wxT("//") + path;
-       }
+              (path.length() > 1) && (path[1u] != wxT(':')) )
+    {
+        path = wxT("//") + path;
+    }
 #endif
 
-       path.Replace(g_unixPathString, g_nativePathString);
+    path.Replace(g_unixPathString, g_nativePathString);
 
-       return wxFileName(path, wxPATH_NATIVE);
+    return wxFileName(path, wxPATH_NATIVE);
 }
 
 // Returns the file URL for a native path
@@ -483,9 +546,9 @@ wxString wxFileSystem::FileNameToURL(const wxFileName& filename)
 
 #ifndef __UNIX__
     // unc notation, wxMSW
-    if ( url.Find(wxT("\\\\")) == 0 ) 
+    if ( url.Find(wxT("\\\\")) == 0 )
     {
-        url = url.Mid(2);
+        url = wxT("//") + url.Mid(2);
     }
     else
     {
@@ -515,50 +578,10 @@ class wxFileSystemModule : public wxModule
         virtual bool OnInit()
         {
             wxFileSystem::AddHandler(new wxLocalFSHandler);
-
-        #if wxUSE_MIMETYPE
-            gs_FSMimeFallbacks = new wxFileTypeInfo[6];
-            gs_FSMimeFallbacks[0] =
-            wxFileTypeInfo(_T("image/jpeg"),
-                           _T(""),
-                           _T(""),
-                           _T("JPEG image (from fallback)"),
-                           _T("jpg"), _T("jpeg"), NULL);
-            gs_FSMimeFallbacks[1] =
-            wxFileTypeInfo(_T("image/gif"),
-                           _T(""),
-                           _T(""),
-                           _T("GIF image (from fallback)"),
-                           _T("gif"), NULL);
-            gs_FSMimeFallbacks[2] =
-            wxFileTypeInfo(_T("image/png"),
-                           _T(""),
-                           _T(""),
-                           _T("PNG image (from fallback)"),
-                           _T("png"), NULL);
-            gs_FSMimeFallbacks[3] =
-            wxFileTypeInfo(_T("image/bmp"),
-                           _T(""),
-                           _T(""),
-                           _T("windows bitmap image (from fallback)"),
-                           _T("bmp"), NULL);
-            gs_FSMimeFallbacks[4] =
-            wxFileTypeInfo(_T("text/html"),
-                           _T(""),
-                           _T(""),
-                           _T("HTML document (from fallback)"),
-                           _T("htm"), _T("html"), NULL);
-            gs_FSMimeFallbacks[5] =
-            // must terminate the table with this!
-            wxFileTypeInfo();
-        #endif
-            return TRUE;
+            return true;
         }
         virtual void OnExit()
         {
-        #if wxUSE_MIMETYPE
-            delete [] gs_FSMimeFallbacks;
-        #endif
             wxFileSystem::CleanUpHandlers();
         }
 };
@@ -567,6 +590,3 @@ IMPLEMENT_DYNAMIC_CLASS(wxFileSystemModule, wxModule)
 
 #endif
   // wxUSE_FILESYSTEM
-
-
-