applied a patch to remove spurious constrains unsatisifed warnings

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

diff --git a/src/common/fs_zip.cpp b/src/common/fs_zip.cpp
index dcce84cc10ad422057bf65d3790923387c76e2ad..cbef9152dd914d895b70b2fd101abfdd9632b745 100644 (file)
--- a/src/common/fs_zip.cpp
+++ b/src/common/fs_zip.cpp
@@ -3,12 +3,14 @@
 // Purpose:     ZIP file system
 // Author:      Vaclav Slavik
 // Copyright:   (c) 1999 Vaclav Slavik
+// CVS-ID:      $Id$
 // Licence:     wxWindows Licence
 /////////////////////////////////////////////////////////////////////////////
 
 
+
 #ifdef __GNUG__
-#pragma implementation
+#pragma implementation "fs_zip.h"
 #endif
 
 #include "wx/wxprec.h"
@@ -20,9 +22,11 @@
 #if wxUSE_FILESYSTEM && wxUSE_FS_ZIP && wxUSE_ZIPSTREAM
 
 #ifndef WXPRECOMP
-#include "wx/wx.h"
+    #include "wx/intl.h"
+    #include "wx/log.h"
 #endif
 
+#include "wx/hash.h"
 #include "wx/filesys.h"
 #include "wx/zipstrm.h"
 #include "wx/fs_zip.h"
@@ -46,6 +50,7 @@ wxZipFSHandler::wxZipFSHandler() : wxFileSystemHandler()
     m_Archive = NULL;
     m_ZipFile = m_Pattern = m_BaseDir = wxEmptyString;
     m_AllowDirs = m_AllowFiles = TRUE;
+    m_DirsFound = NULL;
 }
 
 
@@ -54,6 +59,8 @@ wxZipFSHandler::~wxZipFSHandler()
 {
     if (m_Archive)         
         unzClose((unzFile)m_Archive);
+    if (m_DirsFound)
+        delete m_DirsFound;
 }
 
 
@@ -61,7 +68,8 @@ wxZipFSHandler::~wxZipFSHandler()
 bool wxZipFSHandler::CanOpen(const wxString& location)
 {
     wxString p = GetProtocol(location);
-    return (p == wxT("zip"));
+    return (p == wxT("zip")) && 
+           (GetProtocol(GetLeftLocation(location)) == wxT("file"));
 }
 
 
@@ -108,8 +116,11 @@ wxString wxZipFSHandler::FindFirst(const wxString& spec, int flags)
         m_Archive = NULL;
     }
 
-    if (GetProtocol(left) != wxT("file")) 
+    if (GetProtocol(left) != wxT("file"))
+    {
+        wxLogError(_("ZIP handler currently supports only local files!"));
         return wxEmptyString;
+    }
 
     switch (flags) 
     {
@@ -133,7 +144,15 @@ wxString wxZipFSHandler::FindFirst(const wxString& spec, int flags)
             unzClose((unzFile)m_Archive);
             m_Archive = NULL;        
         }
-        else return DoFind();
+        else 
+        {
+            if (m_AllowDirs)
+            {
+                delete m_DirsFound;
+                m_DirsFound = new wxHashTableLong();
+            }
+            return DoFind();
+        }
     }
     return wxEmptyString;
 }
@@ -152,32 +171,41 @@ wxString wxZipFSHandler::DoFind()
 {
     static char namebuf[1024]; // char, not wxChar!
     char *c;
-    wxString fn, dir, name;
+    wxString namestr, dir, filename;
     wxString match = wxEmptyString;
-    bool wasdir;
 
     while (match == wxEmptyString)
     {
         unzGetCurrentFileInfo((unzFile)m_Archive, NULL, namebuf, 1024, NULL, 0, NULL, 0);
         for (c = namebuf; *c; c++) if (*c == wxT('\\')) *c = wxT('/');
-        fn = namebuf;
-        if (fn.Length() > 0 && fn.Last() == wxT('/')) 
-        {
-            fn.RemoveLast();
-            wasdir = TRUE;
-        }
-        else wasdir = FALSE;
+        namestr = namebuf;
 
-        name = fn.AfterLast(wxT('/'));
-        dir = fn.BeforeLast(wxT('/'));
-
-        if (dir == m_BaseDir) 
+        if (m_AllowDirs)
         {
-            if (m_AllowFiles && !wasdir && wxMatchWild(m_Pattern, name, FALSE))
-                match = m_ZipFile + wxT("#zip:") + fn;
-            if (m_AllowDirs && wasdir && wxMatchWild(m_Pattern, name, FALSE))
-                match = m_ZipFile + wxT("#zip:") + fn;
+            dir = namestr.BeforeLast(wxT('/'));       
+            while (!dir.IsEmpty())
+            {
+                long key = 0;
+                for (size_t i = 0; i < dir.Length(); i++) key += (wxUChar)dir[i];
+                if (m_DirsFound->Get(key) == wxNOT_FOUND)
+                {
+                    m_DirsFound->Put(key, 1);
+                    filename = dir.AfterLast(wxT('/'));
+                    dir = dir.BeforeLast(wxT('/'));
+                    if (!filename.IsEmpty() && m_BaseDir == dir &&
+                                wxMatchWild(m_Pattern, filename, FALSE))
+                        match = m_ZipFile + wxT("#zip:") + dir + wxT("/") + filename;
+                }
+                else 
+                    break; // already tranversed
+            }
         }
+
+        filename = namestr.AfterLast(wxT('/'));
+        dir = namestr.BeforeLast(wxT('/'));
+        if (m_AllowFiles && !filename.IsEmpty() && m_BaseDir == dir &&
+                            wxMatchWild(m_Pattern, filename, FALSE))
+            match = m_ZipFile + wxT("#zip:") + namestr;
         
         if (unzGoToNextFile((unzFile)m_Archive) != UNZ_OK) 
         {