Fixed old FIXME about unsigned result of sunstraction + a few changes to be able...

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

diff --git a/src/common/fs_mem.cpp b/src/common/fs_mem.cpp
index d6b020b2ab52688bf6e9c62db7683f075ba38f2b..aa59f1b48ce16364649f983c1d8d22ffd225ce17 100644 (file)
--- a/src/common/fs_mem.cpp
+++ b/src/common/fs_mem.cpp
@@ -3,11 +3,18 @@
 // Purpose:     in-memory file system
 // Author:      Vaclav Slavik
 // Copyright:   (c) 2000 Vaclav Slavik
-// Licence:     wxWindows Licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) && !defined(__EMX__)
+// Some older compilers (such as EMX) cannot handle
+// #pragma interface/implementation correctly, iff
+// #pragma implementation is used in _two_ translation
+// units (as created by e.g. event.cpp compiled for
+// libwx_base and event.cpp compiled for libwx_gui_core).
+// So we must not use those pragmas for those compilers in
+// such files.
 #pragma implementation "fs_mem.h"
 #endif
 
@@ -19,10 +26,12 @@
 
 #if wxUSE_FILESYSTEM && wxUSE_STREAMS
 
-#include "wx/image.h"
-#include "wx/bitmap.h"
 #include "wx/fs_mem.h"
 
+#if wxUSE_GUI
+    #include "wx/image.h"
+    #include "wx/bitmap.h"
+#endif // wxUSE_GUI
 
 #ifndef WXPRECOMP
     #include "wx/intl.h"
@@ -70,7 +79,7 @@ class MemFSHashObj : public wxObject
         {
 #if wxUSE_DATETIME
             m_Time = wxDateTime::Now();
-#endif // wxUSE_DATETIME            
+#endif // wxUSE_DATETIME
         }
 };
 
@@ -99,6 +108,7 @@ wxMemoryFSHandlerBase::~wxMemoryFSHandlerBase()
 
     if (m_Hash)
     {
+        WX_CLEAR_HASH_TABLE(*m_Hash);
         delete m_Hash;
         m_Hash = NULL;
     }
@@ -127,7 +137,7 @@ wxFSFile* wxMemoryFSHandlerBase::OpenFile(wxFileSystem& WXUNUSED(fs), const wxSt
                             GetAnchor(location)
 #if wxUSE_DATETIME
                             , obj -> m_Time
-#endif // wxUSE_DATETIME                            
+#endif // wxUSE_DATETIME
                             );
     }
     else return NULL;
@@ -158,7 +168,6 @@ bool wxMemoryFSHandlerBase::CheckHash(const wxString& filename)
     if (m_Hash == NULL)
     {
         m_Hash = new wxHashTable(wxKEY_STRING);
-        m_Hash -> DeleteContents(TRUE);
     }
 
     if (m_Hash -> Get(filename) != NULL)
@@ -166,10 +175,10 @@ bool wxMemoryFSHandlerBase::CheckHash(const wxString& filename)
         wxString s;
         s.Printf(_("Memory VFS already contains file '%s'!"), filename.c_str());
         wxLogError(s);
-        return FALSE;
+        return false;
     }
     else
-        return TRUE;
+        return true;
 }
 
 
@@ -207,7 +216,9 @@ bool wxMemoryFSHandlerBase::CheckHash(const wxString& filename)
 
 #if wxUSE_IMAGE
 /*static*/ void
-wxMemoryFSHandler::AddFile(const wxString& filename, wxImage& image, long type)
+wxMemoryFSHandler::AddFile(const wxString& filename,
+                           const wxImage& image,
+                           long type)
 {
     if (!CheckHash(filename)) return;
 
@@ -222,15 +233,19 @@ wxMemoryFSHandler::AddFile(const wxString& filename, wxImage& image, long type)
         wxLogError(s);
     }
 }
-#endif // wxUSE_IMAGE
 
-/*static*/ void wxMemoryFSHandler::AddFile(const wxString& filename, const wxBitmap& bitmap, long type)
+/*static*/ void
+wxMemoryFSHandler::AddFile(const wxString& filename,
+                           const wxBitmap& bitmap,
+                           long type)
 {
     wxImage img = bitmap.ConvertToImage();
     AddFile(filename, img, type);
 }
 
-#endif
+#endif // wxUSE_IMAGE
+
+#endif // wxUSE_GUI
 
 
 #endif // wxUSE_FILESYSTEM && wxUSE_FS_ZIP