From 1b79dad4dc211c70f52f2ec864904855386f2aec Mon Sep 17 00:00:00 2001
From: Michael Wetherell <mike.wetherell@ntlworld.com>
Date: Fri, 27 Oct 2006 09:53:38 +0000
Subject: [PATCH] Base class factory on the wxFilter base class and implement
 the new Find feature.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42508 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 include/wx/archive.h   | 26 ++++++++++++++++++++++--
 src/common/arcall.cpp  | 41 ++++++++++++++++++++++++++++++++++++++
 src/common/arcfind.cpp | 43 ++++++++++++++++++++++++++++++++++++++++
 src/common/archive.cpp | 45 +++++++++++++++++++++++++++++++++---------
 4 files changed, 144 insertions(+), 11 deletions(-)
 create mode 100644 src/common/arcall.cpp
 create mode 100644 src/common/arcfind.cpp

diff --git a/include/wx/archive.h b/include/wx/archive.h
index 31f6b921b1..0858d299f3 100644
--- a/include/wx/archive.h
+++ b/include/wx/archive.h
@@ -104,6 +104,7 @@ public:
     
 protected:
     wxArchiveInputStream(wxInputStream& stream, wxMBConv& conv);
+    wxArchiveInputStream(wxInputStream *stream, wxMBConv& conv);
 
     virtual wxArchiveEntry *DoGetNextEntry() = 0;
 
@@ -149,6 +150,7 @@ public:
 
 protected:
     wxArchiveOutputStream(wxOutputStream& stream, wxMBConv& conv);
+    wxArchiveOutputStream(wxOutputStream *stream, wxMBConv& conv);
 
     wxMBConv& GetConv() const { return m_conv; }
 
@@ -308,7 +310,9 @@ typedef wxArchiveIterator<wxArchiveInputStream,
 // A wxArchiveClassFactory instance for a particular archive type allows
 // the creation of the other classes that may be needed.
 
-class WXDLLIMPEXP_BASE wxArchiveClassFactory : public wxObject
+void WXDLLIMPEXP_BASE wxUseArchiveClasses();
+
+class WXDLLIMPEXP_BASE wxArchiveClassFactory : public wxFilterClassFactoryBase
 {
 public:
     typedef wxArchiveEntry        entry_type;
@@ -328,6 +332,10 @@ public:
         { return DoNewStream(stream); }
     wxArchiveOutputStream *NewStream(wxOutputStream& stream) const
         { return DoNewStream(stream); }
+    wxArchiveInputStream *NewStream(wxInputStream *stream) const
+        { return DoNewStream(stream); }
+    wxArchiveOutputStream *NewStream(wxOutputStream *stream) const
+        { return DoNewStream(stream); }
 
     virtual wxString GetInternalName(
         const wxString& name,
@@ -336,19 +344,33 @@ public:
     void SetConv(wxMBConv& conv) { m_pConv = &conv; }
     wxMBConv& GetConv() const { return *m_pConv; }
 
+    static const wxArchiveClassFactory *Find(const wxChar *protocol,
+                                             wxStreamProtocolType type
+                                             = wxSTREAM_PROTOCOL);
+
+    static const wxArchiveClassFactory *GetFirst();
+    const wxArchiveClassFactory *GetNext() const { return m_next; }
+
+    void PushFront() { Remove(); m_next = sm_first; sm_first = this; }
+    void Remove();
+
 protected:
     // old compilers don't support covarient returns, so 'Do' methods are
     // used to simulate them
     virtual wxArchiveEntry        *DoNewEntry() const = 0;
     virtual wxArchiveInputStream  *DoNewStream(wxInputStream& stream) const = 0;
     virtual wxArchiveOutputStream *DoNewStream(wxOutputStream& stream) const = 0;
+    virtual wxArchiveInputStream  *DoNewStream(wxInputStream *stream) const = 0;
+    virtual wxArchiveOutputStream *DoNewStream(wxOutputStream *stream) const = 0;
 
-    wxArchiveClassFactory() : m_pConv(&wxConvLocal) { }
+    wxArchiveClassFactory() : m_pConv(&wxConvLocal), m_next(this) { }
     wxArchiveClassFactory& operator=(const wxArchiveClassFactory& WXUNUSED(f))
         { return *this; }
 
 private:
     wxMBConv *m_pConv;
+    static wxArchiveClassFactory *sm_first;
+    wxArchiveClassFactory *m_next;
 
     DECLARE_ABSTRACT_CLASS(wxArchiveClassFactory)
 };
diff --git a/src/common/arcall.cpp b/src/common/arcall.cpp
new file mode 100644
index 0000000000..7c3f6547a9
--- /dev/null
+++ b/src/common/arcall.cpp
@@ -0,0 +1,41 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        src/common/arcall.cpp
+// Purpose:     wxArchive link all archive streams
+// Author:      Mike Wetherell
+// RCS-ID:      $Id$
+// Copyright:   (c) 2006 Mike Wetherell
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#if wxUSE_ARCHIVE_STREAMS
+
+#if wxUSE_ZIPSTREAM
+#include "wx/zipstrm.h"
+#endif
+#if wxUSE_TARSTREAM
+#include "wx/tarstrm.h"
+#endif
+
+// Reference archive classes to ensure they are linked into a statically
+// linked program that uses Find or GetFirst to look for an archive handler.
+// It is in its own file so that the user can override this behaviour by
+// providing their own implementation.
+
+void wxUseArchiveClasses()
+{
+#if wxUSE_ZIPSTREAM
+    wxZipClassFactory();
+#endif
+#if wxUSE_TARSTREAM
+    wxTarClassFactory();
+#endif
+}
+
+#endif // wxUSE_ARCHIVE_STREAMS
diff --git a/src/common/arcfind.cpp b/src/common/arcfind.cpp
new file mode 100644
index 0000000000..b71aeb8f9c
--- /dev/null
+++ b/src/common/arcfind.cpp
@@ -0,0 +1,43 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        src/common/arcfind.cpp
+// Purpose:     Streams for archive formats
+// Author:      Mike Wetherell
+// RCS-ID:      $Id$
+// Copyright:   (c) Mike Wetherell
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#if wxUSE_ARCHIVE_STREAMS
+
+#include "wx/archive.h"
+
+// These functions are in a separate file so that statically linked apps
+// that do not call them to search for archive handlers will only link in
+// the archive classes they use.
+
+const wxArchiveClassFactory *
+wxArchiveClassFactory::Find(const wxChar *protocol, wxStreamProtocolType type)
+{
+    for (const wxArchiveClassFactory *f = GetFirst(); f; f = f->GetNext())
+        if (f->CanHandle(protocol, type))
+            return f;
+
+    return NULL;
+}
+
+// static
+const wxArchiveClassFactory *wxArchiveClassFactory::GetFirst()
+{
+    if (!sm_first)
+        wxUseArchiveClasses();
+    return sm_first;
+}
+
+#endif // wxUSE_ARCHIVE_STREAMS
diff --git a/src/common/archive.cpp b/src/common/archive.cpp
index 044498de11..e6962a7784 100644
--- a/src/common/archive.cpp
+++ b/src/common/archive.cpp
@@ -16,18 +16,10 @@
 
 #if wxUSE_STREAMS && wxUSE_ARCHIVE_STREAMS
 
-#ifndef WX_PRECOMP
-#endif
-
 #include "wx/archive.h"
-#include "wx/link.h"
 
 IMPLEMENT_ABSTRACT_CLASS(wxArchiveEntry, wxObject)
-IMPLEMENT_ABSTRACT_CLASS(wxArchiveClassFactory, wxObject)
-
-#if wxUSE_ZIPSTREAM
-wxFORCE_LINK_MODULE(zipstrm)
-#endif
+IMPLEMENT_ABSTRACT_CLASS(wxArchiveClassFactory, wxFilterClassFactoryBase)
 
 
 /////////////////////////////////////////////////////////////////////////////
@@ -40,6 +32,13 @@ wxArchiveInputStream::wxArchiveInputStream(wxInputStream& stream,
 {
 }
 
+wxArchiveInputStream::wxArchiveInputStream(wxInputStream *stream,
+                                           wxMBConv& conv)
+  : wxFilterInputStream(stream),
+    m_conv(conv)
+{
+}
+
 
 /////////////////////////////////////////////////////////////////////////////
 // wxArchiveOutputStream
@@ -51,6 +50,13 @@ wxArchiveOutputStream::wxArchiveOutputStream(wxOutputStream& stream,
 {
 }
 
+wxArchiveOutputStream::wxArchiveOutputStream(wxOutputStream *stream,
+                                             wxMBConv& conv)
+  : wxFilterOutputStream(stream),
+    m_conv(conv)
+{
+}
+
 
 /////////////////////////////////////////////////////////////////////////////
 // wxArchiveEntry
@@ -68,4 +74,25 @@ wxArchiveEntry& wxArchiveEntry::operator=(const wxArchiveEntry& WXUNUSED(e))
     return *this;
 }
 
+
+/////////////////////////////////////////////////////////////////////////////
+// wxArchiveClassFactory
+
+wxArchiveClassFactory *wxArchiveClassFactory::sm_first = NULL;
+
+void wxArchiveClassFactory::Remove()
+{
+    if (m_next != this)
+    {
+        wxArchiveClassFactory **pp = &sm_first;
+
+        while (*pp != this)
+            pp = &(*pp)->m_next;
+
+        *pp = m_next;
+
+        m_next = this;
+    }
+}
+
 #endif // wxUSE_STREAMS && wxUSE_ARCHIVE_STREAMS
-- 
2.45.2