X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/cf44735628cecb0326b953c4872260f223fc8769..c96ea65713a8dd58ae40b10718723b5c92a303e3:/src/common/datstrm.cpp?ds=sidebyside diff --git a/src/common/datstrm.cpp b/src/common/datstrm.cpp index 048b3c50dc..d6f97b7e65 100644 --- a/src/common/datstrm.cpp +++ b/src/common/datstrm.cpp @@ -5,7 +5,7 @@ // Modified by: // Created: 28/06/98 // RCS-ID: $Id$ -// Copyright: (c) Guilhem Lavaux +// Copyright: (c) Guilhem Lavaux // Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// @@ -17,156 +17,280 @@ #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif -#ifndef WX_PRECOMP -#include "wx/defs.h" -#endif +#if wxUSE_STREAMS #include "wx/datstrm.h" -wxDataStream::wxDataStream(istream& s) +// --------------------------------------------------------------------------- +// wxDataInputStream +// --------------------------------------------------------------------------- + +wxDataInputStream::wxDataInputStream(wxInputStream& s) + : m_input(&s), m_be_order(FALSE) { - m_istream = &s; - m_ostream = NULL; } -wxDataStream::wxDataStream(ostream& s) +wxDataInputStream::~wxDataInputStream() { - m_istream = NULL; - m_ostream = &s; } -wxDataStream::wxDataStream(iostream& s) +wxUint32 wxDataInputStream::Read32() { - m_istream = &s; - m_ostream = &s; + wxUint32 i32; + + m_input->Read(&i32, 4); + + if (m_be_order) + return wxUINT32_SWAP_ON_LE(i32); + else + return wxUINT32_SWAP_ON_BE(i32); } -wxDataStream::~wxDataStream() +wxUint16 wxDataInputStream::Read16() { + wxUint16 i16; + + m_input->Read(&i16, 2); + + if (m_be_order) + return wxUINT16_SWAP_ON_LE(i16); + else + return wxUINT16_SWAP_ON_BE(i16); } -unsigned long wxDataStream::Read32() +wxUint8 wxDataInputStream::Read8() { - char buf[4]; + wxUint8 buf; + + m_input->Read(&buf, 1); + return (wxUint8)buf; +} - if (!m_istream) - return 0; +// Must be at global scope for VC++ 5 +extern "C" double ConvertFromIeeeExtended(const unsigned char *bytes); - m_istream->read(buf, 4); +double wxDataInputStream::ReadDouble() +{ +#if wxUSE_APPLE_IEEE + char buf[10]; - return (unsigned long)buf[0] | - ((unsigned long)buf[1] << 8) | - ((unsigned long)buf[2] << 16) | - ((unsigned long)buf[3] << 24); + m_input->Read(buf, 10); + return ConvertFromIeeeExtended((unsigned char *)buf); +#else + return 0.0; +#endif } -unsigned short wxDataStream::Read16() +wxString wxDataInputStream::ReadString() { - char buf[2]; + size_t len; + + len = Read32(); + + if (len > 0) + { +#if wxUSE_UNICODE + char *tmp = new char[len + 1]; + m_input->Read(tmp, len); + tmp[len] = 0; + wxString s(tmp); + delete[] tmp; +#else + wxString s; + m_input->Read(s.GetWriteBuf(len), len); + s.UngetWriteBuf(); +#endif + return s; + } + else + return wxEmptyString; +} - if (!m_istream) - return 0; +wxDataInputStream& wxDataInputStream::operator>>(wxString& s) +{ + s = ReadString(); + return *this; +} - m_istream->read(buf, 2); +wxDataInputStream& wxDataInputStream::operator>>(wxInt8& c) +{ + c = (wxInt8)Read8(); + return *this; +} - return (unsigned short)buf[0] | - ((unsigned short)buf[1] << 8); +wxDataInputStream& wxDataInputStream::operator>>(wxInt16& i) +{ + i = (wxInt16)Read16(); + return *this; } -unsigned char wxDataStream::Read8() +wxDataInputStream& wxDataInputStream::operator>>(wxInt32& i) { - char buf; + i = (wxInt32)Read32(); + return *this; +} - if (!m_istream) - return 0; +wxDataInputStream& wxDataInputStream::operator>>(wxUint8& c) +{ + c = Read8(); + return *this; +} - m_istream->read(&buf, 1); - return (unsigned char)buf; +wxDataInputStream& wxDataInputStream::operator>>(wxUint16& i) +{ + i = Read16(); + return *this; } -double wxDataStream::ReadDouble() +wxDataInputStream& wxDataInputStream::operator>>(wxUint32& i) { - extern "C" double ConvertFromIeeeExtended(const unsigned char *bytes); + i = Read32(); + return *this; +} -#if USE_APPLE_IEEE - char buf[10]; +wxDataInputStream& wxDataInputStream::operator>>(double& i) +{ + i = ReadDouble(); + return *this; +} - if (!m_istream) - return 0.0; +wxDataInputStream& wxDataInputStream::operator>>(float& f) +{ + f = (float)ReadDouble(); + return *this; +} - m_istream->read(buf, 10); - return ConvertFromIeeeExtended((unsigned char *)buf); -#else - return 0.0; -#endif +// --------------------------------------------------------------------------- +// wxDataOutputStream +// --------------------------------------------------------------------------- + +wxDataOutputStream::wxDataOutputStream(wxOutputStream& s) + : m_output(&s), m_be_order(FALSE) +{ } -wxString wxDataStream::ReadLine() +wxDataOutputStream::~wxDataOutputStream() { - char i_strg[255]; +} - if (!m_istream) - return ""; +void wxDataOutputStream::Write32(wxUint32 i) +{ + wxUint32 i32; - m_istream->getline(i_strg, 255); - return i_strg; + if (m_be_order) + i32 = wxUINT32_SWAP_ON_LE(i); + else + i32 = wxUINT32_SWAP_ON_BE(i); + m_output->Write(&i32, 4); } -void wxDataStream::Write32(unsigned long i) +void wxDataOutputStream::Write16(wxUint16 i) { - char buf[4]; + wxUint16 i16; + + if (m_be_order) + i16 = wxUINT16_SWAP_ON_LE(i); + else + i16 = wxUINT16_SWAP_ON_BE(i); - if (!m_ostream) - return; + m_output->Write(&i16, 2); +} + +void wxDataOutputStream::Write8(wxUint8 i) +{ + m_output->Write(&i, 1); +} - buf[0] = i & 0xff; - buf[1] = (i >> 8) & 0xff; - buf[2] = (i >> 16) & 0xff; - buf[3] = (i >> 24) & 0xff; - m_ostream->write(buf, 4); +void wxDataOutputStream::WriteString(const wxString& string) +{ + const wxWX2MBbuf buf = string.mb_str(); + Write32(string.Len()); + if (string.Len() > 0) + m_output->Write(buf, string.Len()); } -void wxDataStream::Write16(unsigned short i) +// Must be at global scope for VC++ 5 +extern "C" void ConvertToIeeeExtended(double num, unsigned char *bytes); + +void wxDataOutputStream::WriteDouble(double d) { - char buf[2]; + char buf[10]; + +#if wxUSE_APPLE_IEEE + ConvertToIeeeExtended(d, (unsigned char *)buf); +#else +#ifndef __VMS__ +# pragma warning "wxDataOutputStream::WriteDouble() not using IeeeExtended - will not work!" +#endif + buf[0] = '\0'; +#endif + m_output->Write(buf, 10); +} - if (!m_ostream) - return; +wxDataOutputStream& wxDataOutputStream::operator<<(const wxChar *string) +{ + Write32(wxStrlen(string)); + m_output->Write((const char *)string, wxStrlen(string)*sizeof(wxChar)); + return *this; +} - buf[0] = i & 0xff; - buf[1] = (i >> 8) & 0xff; - m_ostream->write(buf, 2); +wxDataOutputStream& wxDataOutputStream::operator<<(wxString& string) +{ + WriteString(string); + return *this; } -void wxDataStream::Write8(unsigned char i) +wxDataOutputStream& wxDataOutputStream::operator<<(wxInt8 c) { - if (!m_ostream) - return; + Write8((wxUint8)c); + return *this; +} - m_ostream->write(&i, 1); +wxDataOutputStream& wxDataOutputStream::operator<<(wxInt16 i) +{ + Write16((wxUint16)i); + return *this; } -void wxDataStream::WriteLine(const wxString& line) +wxDataOutputStream& wxDataOutputStream::operator<<(wxInt32 i) { - wxString tmp_string = line + '\n'; + Write32((wxUint32)i); + return *this; +} - if (!m_ostream) - return; +wxDataOutputStream& wxDataOutputStream::operator<<(wxUint8 c) +{ + Write8(c); + return *this; +} - m_ostream->write((const char *) tmp_string, tmp_string.Length()); +wxDataOutputStream& wxDataOutputStream::operator<<(wxUint16 i) +{ + Write16(i); + return *this; } -void wxDataStream::WriteDouble(double d) +wxDataOutputStream& wxDataOutputStream::operator<<(wxUint32 i) { - extern "C" void ConvertToIeeeExtended(double num, unsigned char *bytes) - char buf[10]; + Write32(i); + return *this; +} - if (!m_ostream) - return; +wxDataOutputStream& wxDataOutputStream::operator<<(double f) +{ + WriteDouble(f); + return *this; +} - ConvertToIeeeExtended(d, (unsigned char *)buf); - m_ostream->write(buf, 10); +wxDataOutputStream& wxDataOutputStream::operator<<(float f) +{ + WriteDouble((double)f); + return *this; } + +#endif + // wxUSE_STREAMS +