msgwriter.cpp

vncviewer_source_1.0

/* Copyright (C) 2006 Lucas Gomez  All Rights Reserved.
 * 
 * This is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this software; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
 * USA.
 */

// INCLUDE FILES
#include "MsgWriter.h"
#include "Decoder.h"
#include "LogWriter.h"

//LITERALS

// ============================ MEMBER FUNCTIONS ===============================

// -----------------------------------------------------------------------------
// CMsgWriter::CMsgWriter()
// C++ default constructor can NOT contain any code, that might leave.
// -----------------------------------------------------------------------------
//
CMsgWriter::CMsgWriter(CConnParams* aCP,OutStream* aOS)
{
    iCP=aCP;
    iOS=aOS;
}

// ---------------------------------------------------------------------------
// CMsgWriter::~CMsgWriter()
// Destructor.
// ---------------------------------------------------------------------------
//
CMsgWriter::~CMsgWriter()
{

}

void CMsgWriter::WriteSetPixelFormat(CPixelFormat* aPF)
{
	StartMsg(MsgType::KSetPixelFormat);                                 
    iOS->Pad(3);
    aPF->Write(iOS);
    EndMsg();
}

void CMsgWriter::WriteSetEncodings(TInt aNEncodings,RArray<TEncodings>& aEncodings)
{
	StartMsg(MsgType::KSetEncodings);
    iOS->Skip(1);
    iOS->WriteU16(aNEncodings);
    for(TInt i=0;i<aNEncodings;i++)
      	iOS->WriteU32(aEncodings[i]);
    EndMsg();
}

void CMsgWriter::WriteSetEncodings(TEncodings aPreferredEncoding,TBool aUseCopyRect)
{
	TInt nEncodings=0;
    RArray<TEncodings> encodings;
    if(iCP->GetSupportsLocalCursor())
    {
      	encodings.AppendL(EEncodingPseudoEncodingCursor);
    	nEncodings++;
    }
    if(iCP->GetSupportsDesktopResize())
    {
      	encodings.AppendL(EEncodingPseudoEncodingDesktopSize);
      	nEncodings++;
    }
    if(MDecoder::Supported(aPreferredEncoding)) 
    {
      	encodings.AppendL(aPreferredEncoding);
      	nEncodings++;
    }
    if(aUseCopyRect) 
    {
      	encodings.AppendL(EEncodingCopyRect);
      	nEncodings++;
    }
    for(TInt i=EEncodingMax;i>=0;i--) 
    {
      	if(i!=static_cast<TInt>(aPreferredEncoding) && MDecoder::Supported(static_cast<TEncodings>(i)))
      	{
        	encodings.AppendL(static_cast<TEncodings>(i));
        	nEncodings++;
      	}
    }
    WriteSetEncodings(nEncodings, encodings);
    
    encodings.Close();
}

void CMsgWriter::WriteFramebufferUpdateRequest(TInt aX,TInt aY,TInt aW,TInt aH,TBool aIncremental)
{
	StartMsg(MsgType::KFramebufferUpdateRequest);
    iOS->WriteU8(aIncremental?1:0);
    iOS->WriteU16(aX);
    iOS->WriteU16(aY);
    iOS->WriteU16(aW);
    iOS->WriteU16(aH);
    EndMsg();
}

void CMsgWriter::WriteKeyEvent(TInt aKey,TBool aDown)
{
	StartMsg(MsgType::KKeyEvent);
    iOS->WriteU8(aDown?1:0);
    iOS->Pad(2);
    iOS->WriteU32(aKey);
    EndMsg();
}

void CMsgWriter::WritePointerEvent(TInt aX,TInt aY,TInt aButtonMask)
{
	if(aX<0) aX=0;
    if(aY<0) aY=0;
    if(aX>=iCP->GetWidth()) aX=iCP->GetWidth()-1;
    if(aY>=iCP->GetHeight()) aY=iCP->GetHeight()-1;

    StartMsg(MsgType::KPointerEvent);
    iOS->WriteU8(aButtonMask);
    iOS->WriteU16(aX);
    iOS->WriteU16(aY);
    EndMsg();
}

void CMsgWriter::WriteClientCutText(TDesC& aText)
{
	StartMsg(MsgType::KClientCutText);
    iOS->Pad(3);
    HBufC8* str=HBufC8::NewLC(aText.Length());
    str->Des().Copy(aText);
    iOS->WriteString(*str);
    CleanupStack::PopAndDestroy(str);
    EndMsg();
}

void CMsgWriter::SetOutStream(OutStream* aOS)
{
	iOS=aOS;
}

CConnParams* CMsgWriter::GetConnParams()
{
	return iCP;
}

OutStream* CMsgWriter::GetOutStream()
{
	return iOS;
}

CMsgWriterV3::~CMsgWriterV3()
{
	
}

CMsgWriterV3::CMsgWriterV3(CConnParams* aCP,OutStream* aOS) : CMsgWriter(aCP,aOS)
{
	
}
    
void CMsgWriterV3::WriteClientInit(TBool aShared)
{
	iOS->WriteU8(aShared?1:0);
    EndMsg();
}

void CMsgWriterV3::StartMsg(TInt aType)
{
	iOS->WriteU8(aType);
}

void CMsgWriterV3::EndMsg()
{
	iOS->Flush();
}