X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ba9bbf13881fe4588e2a11134add81e12f1089da..02bcd285fac7124a41292d905609220005f51087:/src/common/zipstrm.cpp

diff --git a/src/common/zipstrm.cpp b/src/common/zipstrm.cpp
index 1c10609715..a2e12cc38b 100644
--- a/src/common/zipstrm.cpp
+++ b/src/common/zipstrm.cpp
@@ -7,10 +7,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-  #pragma implementation "zipstrm.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -34,6 +30,7 @@
 #include "wx/buffer.h"
 #include "wx/ptr_scpd.h"
 #include "wx/wfstream.h"
+#include "wx/link.h"
 #include "zlib.h"
 
 // value for the 'version needed to extract' field (20 means 2.0)
@@ -81,12 +78,7 @@ enum {
 IMPLEMENT_DYNAMIC_CLASS(wxZipEntry, wxArchiveEntry)
 IMPLEMENT_DYNAMIC_CLASS(wxZipClassFactory, wxArchiveClassFactory)
 
-//FORCE_LINK_ME(zipstrm)
-int _wx_link_dummy_func_zipstrm();
-int _wx_link_dummy_func_zipstrm()
-{
-    return 1;
-}
+wxFORCE_LINK_THIS_MODULE(zipstrm)
 
 
 /////////////////////////////////////////////////////////////////////////////
@@ -172,7 +164,7 @@ wxStoredInputStream::wxStoredInputStream(wxInputStream& stream)
 
 size_t wxStoredInputStream::OnSysRead(void *buffer, size_t size)
 {
-    size_t count = wxMin(size, (size_t)(m_len - m_pos));
+    size_t count = wxMin(size, wx_truncate_cast(size_t, m_len - m_pos));
     count = m_parent_i_stream->Read(buffer, count).LastRead();
     m_pos += count;
 
@@ -485,7 +477,7 @@ public:
     wxZipMemory *Unique(size_t size);
 
 private:
-    ~wxZipMemory() { delete m_data; }
+    ~wxZipMemory() { delete [] m_data; }
 
     char *m_data;
     size_t m_size;
@@ -505,7 +497,7 @@ wxZipMemory *wxZipMemory::Unique(size_t size)
     }
 
     if (zm->m_capacity < size) {
-        delete zm->m_data;
+        delete [] zm->m_data;
         zm->m_data = new char[size];
         zm->m_capacity = size;
     }
@@ -546,7 +538,7 @@ static void Unique(wxZipMemory*& zm, size_t size)
 // Collection of weak references to entries
 
 WX_DECLARE_HASH_MAP(long, wxZipEntry*, wxIntegerHash,
-                    wxIntegerEqual, _wxOffsetZipEntryMap);
+                    wxIntegerEqual, wx__OffsetZipEntryMap);
 
 class wxZipWeakLinks
 {
@@ -560,7 +552,7 @@ public:
 
     wxZipWeakLinks *AddEntry(wxZipEntry *entry, wxFileOffset key);
     void RemoveEntry(wxFileOffset key)
-        { m_entries.erase((_wxOffsetZipEntryMap::key_type)key); }
+        { m_entries.erase((wx__OffsetZipEntryMap::key_type)key); }
     wxZipEntry *GetEntry(wxFileOffset key) const;
     bool IsEmpty() const { return m_entries.empty(); }
 
@@ -568,20 +560,20 @@ private:
     ~wxZipWeakLinks() { wxASSERT(IsEmpty()); }
 
     int m_ref;
-    _wxOffsetZipEntryMap m_entries;
+    wx__OffsetZipEntryMap m_entries;
 };
 
 wxZipWeakLinks *wxZipWeakLinks::AddEntry(wxZipEntry *entry, wxFileOffset key)
 {
-    m_entries[(_wxOffsetZipEntryMap::key_type)key] = entry;
+    m_entries[(wx__OffsetZipEntryMap::key_type)key] = entry;
     m_ref++;
     return this;
 }
 
 wxZipEntry *wxZipWeakLinks::GetEntry(wxFileOffset key) const
 {
-    _wxOffsetZipEntryMap::const_iterator it =
-        m_entries.find((_wxOffsetZipEntryMap::key_type)key);
+    wx__OffsetZipEntryMap::const_iterator it =
+        m_entries.find((wx__OffsetZipEntryMap::key_type)key);
     return it != m_entries.end() ?  it->second : NULL;
 }
 
@@ -684,6 +676,7 @@ wxString wxZipEntry::GetName(wxPathFormat format /*=wxPATH_NATIVE*/) const
 {
     bool isDir = IsDir() && !m_Name.empty();
 
+    // optimisations for common (and easy) cases
     switch (wxFileName::GetFormat(format)) {
         case wxPATH_DOS:
         {
@@ -1171,8 +1164,9 @@ private:
 /////////////////////////////////////////////////////////////////////////////
 // Input stream
 
-wxDECLARE_SCOPED_PTR(wxZipEntry, _wxZipEntryPtr)
-wxDEFINE_SCOPED_PTR (wxZipEntry, _wxZipEntryPtr)
+// leave the default wxZipEntryPtr free for users
+wxDECLARE_SCOPED_PTR(wxZipEntry, wx__ZipEntryPtr)
+wxDEFINE_SCOPED_PTR (wxZipEntry, wx__ZipEntryPtr)
 
 // constructor
 //
@@ -1180,20 +1174,22 @@ wxZipInputStream::wxZipInputStream(wxInputStream& stream,
                                    wxMBConv& conv /*=wxConvLocal*/)
   : wxArchiveInputStream(stream, conv)
 {
-    m_ffile = NULL;
     Init();
 }
 
-// Compatibility constructor
+#if 1 //WXWIN_COMPATIBILITY_2_6
+
+// Part of the compatibility constructor, which has been made inline to
+// avoid a problem with it not being exported by mingw 3.2.3
 //
-wxZipInputStream::wxZipInputStream(const wxString& archive,
-                                   const wxString& file)
-  : wxArchiveInputStream(OpenFile(archive), wxConvLocal)
+void wxZipInputStream::Init(const wxString& file)
 {
     // no error messages
     wxLogNull nolog;
     Init();
-    _wxZipEntryPtr entry;
+    m_allowSeeking = true;
+    m_ffile = wx_static_cast(wxFFileInputStream*, m_parent_i_stream);
+    wx__ZipEntryPtr entry;
 
     if (m_ffile->Ok()) {
         do {
@@ -1209,10 +1205,11 @@ wxZipInputStream::wxZipInputStream(const wxString& archive,
 wxInputStream& wxZipInputStream::OpenFile(const wxString& archive)
 {
     wxLogNull nolog;
-    m_ffile = new wxFFileInputStream(archive);
-    return *m_ffile;
+    return *new wxFFileInputStream(archive);
 }
 
+#endif // WXWIN_COMPATIBILITY_2_6
+
 void wxZipInputStream::Init()
 {
     m_store = new wxStoredInputStream(*m_parent_i_stream);
@@ -1229,6 +1226,10 @@ void wxZipInputStream::Init()
     m_signature = 0;
     m_TotalEntries = 0;
     m_lasterror = m_parent_i_stream->GetLastError();
+    m_ffile = NULL;
+#if 1 //WXWIN_COMPATIBILITY_2_6
+    m_allowSeeking = false;
+#endif
 }
 
 wxZipInputStream::~wxZipInputStream()
@@ -1416,7 +1417,7 @@ wxZipEntry *wxZipInputStream::GetNextEntry()
     if (!IsOk())
         return NULL;
 
-    _wxZipEntryPtr entry(new wxZipEntry(m_entry));
+    wx__ZipEntryPtr entry(new wxZipEntry(m_entry));
     entry->m_backlink = m_weaklinks->AddEntry(entry.get(), entry->GetKey());
     return entry.release();
 }
@@ -1742,11 +1743,20 @@ size_t wxZipInputStream::OnSysRead(void *buffer, size_t size)
     return count;
 }
 
+#if 1 //WXWIN_COMPATIBILITY_2_6
+
 // Borrowed from VS's zip stream (c) 1999 Vaclav Slavik
 //
 wxFileOffset wxZipInputStream::OnSysSeek(wxFileOffset seek, wxSeekMode mode)
 {
-    if (!m_ffile || AtHeader())
+    // seeking works when the stream is created with the compatibility
+    // constructor
+    if (!m_allowSeeking)
+        return wxInvalidOffset;
+    if (!IsOpened())
+        if ((AtHeader() && !DoOpen()) || !OpenDecompressor())
+            m_lasterror = wxSTREAM_READ_ERROR;
+    if (!IsOk())
         return wxInvalidOffset;
 
     // NB: since ZIP files don't natively support seeking, we have to
@@ -1761,7 +1771,7 @@ wxFileOffset wxZipInputStream::OnSysSeek(wxFileOffset seek, wxSeekMode mode)
     {
         case wxFromCurrent : nextpos = seek + pos; break;
         case wxFromStart : nextpos = seek; break;
-        case wxFromEnd : nextpos = GetLength() - 1 + seek; break;
+        case wxFromEnd : nextpos = GetLength() + seek; break;
         default : nextpos = pos; break; /* just to fool compiler, never happens */
     }
 
@@ -1799,12 +1809,14 @@ wxFileOffset wxZipInputStream::OnSysSeek(wxFileOffset seek, wxSeekMode mode)
     return pos;
 }
 
+#endif // WXWIN_COMPATIBILITY_2_6
+
 
 /////////////////////////////////////////////////////////////////////////////
 // Output stream
 
 #include "wx/listimpl.cpp"
-WX_DEFINE_LIST(_wxZipEntryList);
+WX_DEFINE_LIST(wx__ZipEntryList)
 
 wxZipOutputStream::wxZipOutputStream(wxOutputStream& stream,
                                      int level      /*=-1*/,
@@ -1829,7 +1841,7 @@ wxZipOutputStream::wxZipOutputStream(wxOutputStream& stream,
 wxZipOutputStream::~wxZipOutputStream()
 {
     Close();
-    WX_CLEAR_LIST(_wxZipEntryList, m_entries);
+    WX_CLEAR_LIST(wx__ZipEntryList, m_entries);
     delete m_store;
     delete m_deflate;
     delete m_pending;
@@ -1858,7 +1870,7 @@ bool wxZipOutputStream::PutNextDirEntry(
 bool wxZipOutputStream::CopyEntry(wxZipEntry *entry,
                                   wxZipInputStream& inputStream)
 {
-    _wxZipEntryPtr e(entry);
+    wx__ZipEntryPtr e(entry);
 
     return
         inputStream.DoOpen(e.get(), true) &&
@@ -1925,14 +1937,18 @@ bool wxZipOutputStream::DoCreate(wxZipEntry *entry, bool raw /*=false*/)
 
     // and if this is the first entry test for seekability
     if (m_headerOffset == 0 && m_parent_o_stream->IsSeekable()) {
+#if wxUSE_LOG
         bool logging = wxLog::IsEnabled();
         wxLogNull nolog;
+#endif // wxUSE_LOG
         wxFileOffset here = m_parent_o_stream->TellO();
 
         if (here != wxInvalidOffset && here >= 4) {
             if (m_parent_o_stream->SeekO(here - 4) == here - 4) {
                 m_offsetAdjustment = here - 4;
+#if wxUSE_LOG
                 wxLog::EnableLogging(logging);
+#endif // wxUSE_LOG
                 m_parent_o_stream->SeekO(here);
             }
         }
@@ -2024,7 +2040,7 @@ bool wxZipOutputStream::CloseCompressor(wxOutputStream *comp)
 void wxZipOutputStream::CreatePendingEntry(const void *buffer, size_t size)
 {
     wxASSERT(IsOk() && m_pending && !m_comp);
-    _wxZipEntryPtr spPending(m_pending);
+    wx__ZipEntryPtr spPending(m_pending);
     m_pending = NULL;
 
     Buffer bufs[] = {
@@ -2065,7 +2081,7 @@ void wxZipOutputStream::CreatePendingEntry(const void *buffer, size_t size)
 void wxZipOutputStream::CreatePendingEntry()
 {
     wxASSERT(IsOk() && m_pending && !m_comp);
-    _wxZipEntryPtr spPending(m_pending);
+    wx__ZipEntryPtr spPending(m_pending);
     m_pending = NULL;
     m_lasterror = wxSTREAM_WRITE_ERROR;
 
@@ -2129,7 +2145,7 @@ bool wxZipOutputStream::Close()
     endrec.SetOffset(m_headerOffset);
     endrec.SetComment(m_Comment);
 
-    _wxZipEntryList::iterator it;
+    wx__ZipEntryList::iterator it;
     wxFileOffset size = 0;
 
     for (it = m_entries.begin(); it != m_entries.end(); ++it) {