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/* Copyright (C) 2002-2005 RealVNC Ltd. 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 <stdio.h>
#include <rdr/InStream.h>
#include <rfb/Exception.h>
#include <rfb/util.h>
#include <rfb/SMsgHandler.h>
#include <rfb/SMsgReader.h>
#include <rfb/Configuration.h>
#include <rfb/LogWriter.h>
using namespace rfb;
static LogWriter vlog("SMsgReader");
static IntParameter maxCutText("MaxCutText", "Maximum permitted length of an incoming clipboard update", 256*1024);
SMsgReader::SMsgReader(SMsgHandler* handler_, rdr::InStream* is_)
: handler(handler_), is(is_)
{
}
SMsgReader::~SMsgReader()
{
}
void SMsgReader::readSetPixelFormat()
{
is->skip(3);
PixelFormat pf;
pf.read(is);
handler->setPixelFormat(pf);
}
void SMsgReader::readSetEncodings()
{
is->skip(1);
int nEncodings = is->readU16();
rdr::U32Array encodings(nEncodings);
for (int i = 0; i < nEncodings; i++)
encodings.buf[i] = is->readU32();
handler->setEncodings(nEncodings, encodings.buf);
}
void SMsgReader::readFramebufferUpdateRequest()
{
bool inc = is->readU8();
int x = is->readU16();
int y = is->readU16();
int w = is->readU16();
int h = is->readU16();
handler->framebufferUpdateRequest(Rect(x, y, x+w, y+h), inc);
}
void SMsgReader::readKeyEvent()
{
bool down = is->readU8();
is->skip(2);
rdr::U32 key = is->readU32();
handler->keyEvent(key, down);
}
void SMsgReader::readPointerEvent()
{
int mask = is->readU8();
int x = is->readU16();
int y = is->readU16();
handler->pointerEvent(Point(x, y), mask);
}
void SMsgReader::readClientCutText()
{
is->skip(3);
int len = is->readU32();
if (len > maxCutText) {
is->skip(len);
vlog.error("Cut text too long (%d bytes) - ignoring", len);
return;
}
CharArray ca(len+1);
ca.buf[len] = 0;
is->readBytes(ca.buf, len);
handler->clientCutText(ca.buf, len);
}
void SMsgReader::readEnableContinuousUpdates()
{
bool enable = is->readU8();
int x = is->readU16();
int y = is->readU16();
int w = is->readU16();
int h = is->readU16();
if (enable) {
handler->enableContinuousUpdates(Rect(x, y, x+w, y+h));
} else {
handler->disableContinuousUpdates();
}
}
void SMsgReader::readVideoRectangleSelection()
{
(void)is->readU8();
int x = is->readU16();
int y = is->readU16();
int w = is->readU16();
int h = is->readU16();
bool enable = w > 0 && h > 0;
if (enable) {
vlog.debug("Video area selected by client: %dx%d at (%d,%d)",
w, h, x, y);
} else {
vlog.debug("Video area discarded by client");
}
// FIXME: Implement VideoRectangleSelection message handling.
}
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