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Add class factories for filter streams. Also filters now follow the convention

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that they own their parent if they are created on a pointer to the parent.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42413 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Michael Wetherell
2006-10-25 20:45:15 +00:00
parent 166c3ef0f9
commit 55420742a1
2 changed files with 142 additions and 1 deletions
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93
src/common/zstream.cpp
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@@ -43,12 +43,89 @@ enum {
ZSTREAM_AUTO = 0x20 // auto detect between gzip and zlib
};
/////////////////////////////////////////////////////////////////////////////
// Zlib Class factory
IMPLEMENT_DYNAMIC_CLASS(wxZlibClassFactory, wxFilterClassFactory)
static wxZlibClassFactory g_wxZlibClassFactory;
wxZlibClassFactory::wxZlibClassFactory()
{
if (this == &g_wxZlibClassFactory)
PushFront();
}
const wxChar * const *
wxZlibClassFactory::GetProtocols(wxStreamProtocolType type) const
{
static const wxChar *mimes[] = { _T("application/x-deflate"), NULL };
static const wxChar *encs[] = { _T("deflate"), NULL };
static const wxChar *empty[] = { NULL };
switch (type) {
case wxSTREAM_MIMETYPE: return mimes;
case wxSTREAM_ENCODING: return encs;
default: return empty;
}
}
/////////////////////////////////////////////////////////////////////////////
// Gzip Class factory
IMPLEMENT_DYNAMIC_CLASS(wxGzipClassFactory, wxFilterClassFactory)
static wxGzipClassFactory g_wxGzipClassFactory;
wxGzipClassFactory::wxGzipClassFactory()
{
if (this == &g_wxGzipClassFactory && wxZlibInputStream::CanHandleGZip())
PushFront();
}
const wxChar * const *
wxGzipClassFactory::GetProtocols(wxStreamProtocolType type) const
{
static const wxChar *protos[] =
{ _T("gzip"), NULL };
static const wxChar *mimes[] =
{ _T("application/gzip"), _T("application/x-gzip"), NULL };
static const wxChar *encs[] =
{ _T("gzip"), NULL };
static const wxChar *exts[] =
{ _T(".gz"), _T(".gzip"), NULL };
static const wxChar *empty[] =
{ NULL };
switch (type) {
case wxSTREAM_PROTOCOL: return protos;
case wxSTREAM_MIMETYPE: return mimes;
case wxSTREAM_ENCODING: return encs;
case wxSTREAM_FILEEXTENSION: return exts;
default: return empty;
}
}
//////////////////////
// wxZlibInputStream
//////////////////////
wxZlibInputStream::wxZlibInputStream(wxInputStream& stream, int flags)
: wxFilterInputStream(stream)
{
Init(flags);
}
wxZlibInputStream::wxZlibInputStream(wxInputStream *stream, int flags)
: wxFilterInputStream(stream)
{
Init(flags);
}
void wxZlibInputStream::Init(int flags)
{
m_inflate = NULL;
m_z_buffer = new unsigned char[ZSTREAM_BUFFER_SIZE];
@@ -192,6 +269,19 @@ wxZlibOutputStream::wxZlibOutputStream(wxOutputStream& stream,
int level,
int flags)
: wxFilterOutputStream(stream)
{
Init(level, flags);
}
wxZlibOutputStream::wxZlibOutputStream(wxOutputStream *stream,
int level,
int flags)
: wxFilterOutputStream(stream)
{
Init(level, flags);
}
void wxZlibOutputStream::Init(int level, int flags)
{
m_deflate = NULL;
m_z_buffer = new unsigned char[ZSTREAM_BUFFER_SIZE];
@@ -250,7 +340,8 @@ bool wxZlibOutputStream::Close()
m_deflate = NULL;
delete[] m_z_buffer;
m_z_buffer = NULL;
return IsOk();
return wxFilterOutputStream::Close() && IsOk();
}
void wxZlibOutputStream::DoFlush(bool final)