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/* Copyright (C) 2003-2006 Constantin Kaplinsky. 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 <rfb/CapsContainer.h>
using namespace rfb;
//
// The constructor.
//
CapsContainer::CapsContainer(int maxCaps)
{
m_maxSize = maxCaps;
m_listSize = 0;
m_plist = new rdr::U32[m_maxSize];
}
//
// The destructor.
//
CapsContainer::~CapsContainer()
{
delete[] m_plist;
// Remove char[] strings allocated by the new[] operator.
std::map<rdr::U32,char*>::const_iterator iter;
for (iter = m_descMap.begin(); iter != m_descMap.end(); iter++) {
delete[] iter->second;
}
}
//
// Add information about a particular capability into the object. There are
// two functions to perform this task. These functions overwrite capability
// records with the same code.
//
void
CapsContainer::add(rdr::U32 code, const char *vendor, const char *name,
const char *desc)
{
// Fill in an rfbCapabilityInfo structure and pass it to the overloaded
// function.
CapabilityInfo capinfo;
capinfo.code = code;
memcpy(capinfo.vendorSignature, vendor, 4);
memcpy(capinfo.nameSignature, name, 8);
add(&capinfo, desc);
}
void
CapsContainer::add(const CapabilityInfo *capinfo, const char *desc)
{
m_infoMap[capinfo->code] = *capinfo;
m_enableMap[capinfo->code] = false;
if (isKnown(capinfo->code)) {
delete[] m_descMap[capinfo->code];
}
char *desc_copy = 0;
if (desc != 0) {
desc_copy = new char[strlen(desc) + 1];
strcpy(desc_copy, desc);
}
m_descMap[capinfo->code] = desc_copy;
}
//
// Check if a capability with the specified code was added earlier.
//
bool
CapsContainer::isKnown(rdr::U32 code) const
{
return (m_descMap.find(code) != m_descMap.end());
}
//
// Fill in a rfbCapabilityInfo structure with contents corresponding to the
// specified code. Returns true on success, false if the specified code is
// not known.
//
bool
CapsContainer::getInfo(rdr::U32 code, CapabilityInfo *capinfo) const
{
if (isKnown(code)) {
*capinfo = m_infoMap.find(code)->second;
return true;
}
return false;
}
//
// Get a description string for the specified capability code. Returns 0
// either if the code is not known, or if there is no description for this
// capability.
//
char *
CapsContainer::getDescription(rdr::U32 code) const
{
return (isKnown(code)) ? m_descMap.find(code)->second : 0;
}
//
// Mark the specified capability as "enabled". This function checks "vendor"
// and "name" signatures in the existing record and in the argument structure
// and enables the capability only if both records are the same.
//
bool
CapsContainer::enable(const CapabilityInfo *capinfo)
{
if (!isKnown(capinfo->code))
return false;
const CapabilityInfo *known = &(m_infoMap[capinfo->code]);
if ( memcmp(known->vendorSignature, capinfo->vendorSignature, 4) != 0 ||
memcmp(known->nameSignature, capinfo->nameSignature, 8) != 0 ) {
m_enableMap[capinfo->code] = false;
return false;
}
m_enableMap[capinfo->code] = true;
if (m_listSize < m_maxSize) {
m_plist[m_listSize++] = capinfo->code;
}
return true;
}
//
// Check if the specified capability is known and enabled.
//
bool
CapsContainer::isEnabled(rdr::U32 code) const
{
return (isKnown(code)) ? m_enableMap.find(code)->second : false;
}
//
// Return the capability code at the specified index.
// If the index is not valid, return 0.
//
rdr::U32
CapsContainer::getByOrder(int idx) const
{
return (idx < m_listSize) ? m_plist[idx] : 0;
}
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