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	diff --git a/trunk/registryhive.cpp b/trunk/registryhive.cpp
	index 1a98323..f866bd0 100644
	--- a/trunk/registryhive.cpp
	+++ b/trunk/registryhive.cpp
	@@ -1,1216 +1,1228 @@
	/*******************************************************************************
	* fred Copyright (c) 2011-2013 by Gillen Daniel <gillen.dan@pinguin.lu> *
	* *
	* Forensic Registry EDitor (fred) is a cross-platform M$ registry hive editor *
	* with special feautures useful during forensic analysis. *
	* *
	* This program 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 3 of the License, or (at your option) *
	* any later version. *
	* *
	* This program 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 program. If not, see <http://www.gnu.org/licenses/>. *
	*******************************************************************************/

	#include "registryhive.h"

	#include <QStringList>
	#include <QDateTime>

	#include <QDebug>

	#include <stdlib.h>
	#include <stdio.h>

	// TODO: __WORDSIZE is not defined under mingw and I currently have no idea how
	// to identify a 64bit windows
	#ifndef __WORDSIZE
	#define __WORDSIZE 32
	#endif

	#if __WORDSIZE == 64
	#define EPOCH_DIFF 0x19DB1DED53E8000
	#else
	#define EPOCH_DIFF 0x19DB1DED53E8000LL
	#endif

	/*******************************************************************************
	* Public
	******************************************************************************/

	/*
	* RegistryHive
	*/
	RegistryHive::RegistryHive(QObject *p_parent) : QObject(p_parent) {
	this->erro_msg="";
	this->is_error=false;
	this->hive_file="";
	this->p_hive=NULL;
	this->is_hive_open=false;
	this->is_hive_writable=false;
	this->has_changes_to_commit=false;
	}

	/*
	* ~RegistryHive
	*/
	RegistryHive::~RegistryHive() {
	if(this->is_hive_open) this->Close();
	}

	/*
	* Error
	*/
	bool RegistryHive::Error() {
	return this->is_error;
	}

	/*
	* GetErrorMsg
	*/
	QString RegistryHive::GetErrorMsg() {
	QString msg=this->erro_msg;
	this->erro_msg="";
	this->is_error=false;
	return msg;
	}

	/*
	* Open
	*/
	bool RegistryHive::Open(QString file, bool read_only) {
	if(this->is_hive_open) return false;

	// Open hive file
	this->p_hive=hivex_open(file.toAscii().constData(),
	read_only ? 0 : HIVEX_OPEN_WRITE);
	if(this->p_hive==NULL) return false;

	// Set local vars
	this->hive_file=file;
	this->is_hive_open=true;
	this->is_hive_writable=!read_only;

	return true;
	}

	/*
	* Reopen
	*/
	bool RegistryHive::Reopen(bool read_only) {
	if(!this->is_hive_open) return false;

	// Close hive first
	if(hivex_close(this->p_hive)!=0) {
	// According to the docs, even if hivex_close fails, it frees all handles.
	// So we consider this fatal and final!
	this->hive_file="";
	this->is_hive_open=false;
	this->is_hive_writable=false;
	this->has_changes_to_commit=false;
	return false;
	}

	// Reopen same hive
	this->p_hive=hivex_open(this->hive_file.toAscii().constData(),
	read_only ? 0 : HIVEX_OPEN_WRITE);
	if(this->p_hive==NULL) {
	this->hive_file="";
	this->is_hive_open=false;
	this->is_hive_writable=false;
	this->has_changes_to_commit=false;
	return false;
	}

	// Update local vars
	this->is_hive_writable=!read_only;
	this->has_changes_to_commit=false;

	return true;
	}

	/*
	* CommitChanges
	*/
	bool RegistryHive::CommitChanges() {
	if(!this->is_hive_open \|\| !this->is_hive_writable) return false;
	if(!this->has_changes_to_commit) return true;

	// TODO: Maybe it would be more secure to commit changes to a new file and
	// then move it over the original one.
	if(hivex_commit(this->p_hive,NULL,0)!=0) {
	return false;
	}
	return true;
	}

	/*
	* Close
	*/
	bool RegistryHive::Close() {
	if(this->is_hive_open) {
	// As hivex_close will _ALWAYS_ free the handle, we don't need the following
	// values anymore
	this->hive_file="";
	this->is_hive_open=false;
	this->is_hive_writable=false;
	this->has_changes_to_commit=false;

	// Close hive
	if(hivex_close(this->p_hive)!=0) return false;
	}
	return true;
	}

	/*
	* Filename
	*/
	QString RegistryHive::Filename() {
	if(this->is_hive_open) return this->hive_file;
	return QString();
	}

	/*
	* HiveType
	*/
	RegistryHive::teHiveType RegistryHive::HiveType() {
	// Check for SYSTEM hive
	if(this->PathExists("\\Select") && this->PathExists("\\MountedDevices"))
	return RegistryHive::eHiveType_SYSTEM;
	// Check for SOFTWARE hive
	if(this->PathExists("\\Microsoft\\Windows\\CurrentVersion") &&
	this->PathExists("\\Microsoft\\Windows NT\\CurrentVersion"))
	return RegistryHive::eHiveType_SOFTWARE;
	// Check for SAM
	if(this->PathExists("SAM\\Domains\\Account\\Users"))
	return RegistryHive::eHiveType_SAM;
	// Check for SECURITY
	if(this->PathExists("\\Policy\\Accounts") &&
	this->PathExists("\\Policy\\PolAdtEv"))
	return RegistryHive::eHiveType_SECURITY;
	// Check for NTUSER.DAT
	if(this->PathExists("\\Software\\Microsoft\\Windows\\CurrentVersion"))
	return RegistryHive::eHiveType_NTUSER;
	// Unknown hive
	return RegistryHive::eHiveType_UNKNOWN;
	}

	/*
	* HiveTypeToString
	*/
	QString RegistryHive::HiveTypeToString(teHiveType hive_type) {
	switch(hive_type) {
	case RegistryHive::eHiveType_SYSTEM:
	return "SYSTEM";
	break;
	case RegistryHive::eHiveType_SOFTWARE:
	return "SOFTWARE";
	break;
	case RegistryHive::eHiveType_SAM:
	return "SAM";
	break;
	case RegistryHive::eHiveType_SECURITY:
	return "SECURITY";
	break;
	case RegistryHive::eHiveType_NTUSER:
	return "NTUSER";
	break;
	default:
	return "UNKNOWN";
	}
	}

	/*
	* HasChangesToCommit
	*/
	bool RegistryHive::HasChangesToCommit() {
	return this->has_changes_to_commit;
	}

	/*
	* GetNodes
	*/
	QMap<QString,int> RegistryHive::GetNodes(QString path) {
	hive_node_h parent_node;

	// Get handle to last node in path
	if(!this->GetNodeHandle(path,&parent_node)) return QMap<QString,int>();

	// Get and return nodes
	return this->GetNodesHelper(parent_node);
	}

	/*
	* GetNodes
	*/
	QMap<QString,int> RegistryHive::GetNodes(int parent_node) {
	if(parent_node==0) {
	this->SetError(tr("Invalid parent node handle specified!"));
	return QMap<QString,int>();
	}

	// Get and return nodes
	return this->GetNodesHelper(parent_node);
	}

	/*
	* GetKeys
	*/
	QMap<QString,int> RegistryHive::GetKeys(QString path) {
	hive_node_h parent_node;

	// Get handle to last node in path
	if(!this->GetNodeHandle(path,&parent_node)) return QMap<QString,int>();

	// Get and return keys
	return this->GetKeysHelper(parent_node);
	}

	/*
	* GetKeys
	*/
	QMap<QString,int> RegistryHive::GetKeys(int parent_node) {
	if(parent_node==0) {
	this->SetError(tr("Invalid parent node handle specified!"));
	return QMap<QString,int>();
	}

	// Get and return keys
	return this->GetKeysHelper(parent_node);
	}

	/*
	* GetKeyName
	*/
	bool RegistryHive::GetKeyName(int hive_key, QString &key_name) {
	char *buf;

	if(!this->is_hive_open) {
	this->SetError(tr("Need to operate on an open hive!"));
	return false;
	}

	buf=hivex_value_key(this->p_hive,(hive_value_h)hive_key);
	if(buf==NULL) {
	this->SetError(tr("Unable to get key name for key '%1'").arg(hive_key));
	return false;
	}

	key_name=QString(buf);
	free(buf);

	return true;
	}

	/*
	* GetKeyValue
	*/
	QByteArray RegistryHive::GetKeyValue(QString path,
	QString key,
	int *p_value_type,
	size_t *p_value_len)
	{
	hive_node_h parent_node;
	hive_value_h hive_key;

	// Get handle to last node in path
	if(!this->GetNodeHandle(path,&parent_node)) return QByteArray();

	// Get key handle
	hive_key=hivex_node_get_value(this->p_hive,
	parent_node,key.toAscii().constData());
	if(hive_key==0) {
	this->SetError(tr("Unable to get key handle!"));
	*p_value_len=-1;
	return QByteArray();
	}

	// Get and return key value
	return this->GetKeyValueHelper(hive_key,p_value_type,p_value_len);
	}

	/*
	* GetKeyValue
	*/
	QByteArray RegistryHive::GetKeyValue(int hive_key,
	int *p_value_type,
	size_t *p_value_len)
	{
	if(hive_key==0) {
	this->SetError(tr("Invalid key handle specified!"));
	*p_value_type=-1;
	return QByteArray();
	}

	// Get and return key value
	return this->GetKeyValueHelper(hive_key,p_value_type,p_value_len);
	}

	/*
	* GetKeyModTime
	*/
	int64_t RegistryHive::GetNodeModTime(QString path) {
	hive_node_h node;

	// Get handle to last node in path
	if(!this->GetNodeHandle(path,&node)) {
	this->SetError(tr("Unable to get node handle!"));
	return 0;
	}

	// Get and return node's last modification timestamp
	return this->GetNodeModTime(node);
	}

	/*
	* GetKeyModTime
	*/
	int64_t RegistryHive::GetNodeModTime(int node) {
	if(node==0) {
	this->SetError(tr("Invalid node handle specified!"));
	return 0;
	}

	// Get and return key's last modification timestamp
	return hivex_node_timestamp(this->p_hive,node);
	}

	/*
	* KeyValueToString
	*/
	QString RegistryHive::KeyValueToString(QByteArray value, int value_type) {
	QString ret="";
	int i=0;

	#define ToHexStr() { \
	for(i=0;i<value.size();i++) { \
	ret.append(QString().sprintf("%02X ",(uint8_t)(value.constData()[i]))); \
	} \
	ret.chop(1); \
	}

	switch(value_type) {
	case hive_t_REG_NONE:
	// Just a key without a value, but to be certain...
	ToHexStr();
	break;
	case hive_t_REG_SZ:
	// A Windows string (encoding is unknown, but often UTF16-LE)
	// TODO: What happens if encoding is not UTF16-LE ??? Thx Billy!!!
	ret=value.size() ? QString().fromUtf16((ushort*)(value.constData())) : "";
	break;
	case hive_t_REG_EXPAND_SZ:
	// A Windows string that contains %env% (environment variable expansion)
	+ // TODO: Same as above, what happens if....
	ret=value.size() ? QString().fromUtf16((ushort*)(value.constData())) : "";
	break;
	case hive_t_REG_BINARY:
	// A blob of binary
	ToHexStr();
	break;
	case hive_t_REG_DWORD:
	// DWORD (32 bit integer), little endian
	+ // TODO: What about LE32TOH ?
	ret=QString().sprintf("0x%08X",(uint32_t)value.constData());
	break;
	case hive_t_REG_DWORD_BIG_ENDIAN:
	// DWORD (32 bit integer), big endian
	+ // TODO: What about BE32TOH ?
	ret=QString().sprintf("0x%08X",(uint32_t)value.constData());
	break;
	case hive_t_REG_LINK:
	// Symbolic link to another part of the registry tree
	ToHexStr();
	break;
	case hive_t_REG_MULTI_SZ:
	// Multiple Windows strings.
	// See http://blogs.msdn.com/oldnewthing/archive/2009/10/08/9904646.aspx
	+ // TODO: Shouldn't this be decoded here? If so, how to know if it is ASCII
	+ // or UTF16XX??? Some magic is needed!
	ToHexStr();
	break;
	case hive_t_REG_RESOURCE_LIST:
	// Resource list
	ToHexStr();
	break;
	case hive_t_REG_FULL_RESOURCE_DESCRIPTOR:
	// Resource descriptor
	ToHexStr();
	break;
	case hive_t_REG_RESOURCE_REQUIREMENTS_LIST:
	// Resouce requirements list
	ToHexStr();
	break;
	case hive_t_REG_QWORD:
	// QWORD (64 bit integer). Usually little endian.
	+ // TODO: What about LE64TOH? And what if not LE?
	ret=
	- QString("0x%1").arg((quint64)((uint64_t)value.constData()),16,16,QChar('0'));
	+ QString("0x%1").arg((quint64)((uint64_t)value.constData()),
	+ 16,
	+ 16,
	+ QChar('0'));
	break;
	default:
	ToHexStr();
	}

	#undef ToHexStr

	return ret;
	}

	/*
	* KeyValueToString
	*/
	QString RegistryHive::KeyValueToString(QByteArray key_value,
	QString format,
	int offset,
	int length,
	bool little_endian)
	{
	int remaining_data_len;
	const char *p_data;
	QString ret="";

	// Calculate how many bytes are remainig after specified offset
	remaining_data_len=key_value.size()-offset;
	if(!remaining_data_len>0) {
	// Nothing to show
	return QString();
	}

	// Get pointer to data at specified offset
	p_data=key_value.constData();
	p_data+=offset;

	// TODO: This will fail on platforms with different endianness!
	+ // Use/add functions from/to macros.h!!!!
	+ // TODO: In addition, converting to host endianness is missing!
	#define bswap_16(value) ((((value) & 0xff) << 8) \| ((value) >> 8))
	#define bswap_32(value) \
	(((uint32_t)bswap_16((uint16_t)((value) & 0xffff)) << 16) \| \
	(uint32_t)bswap_16((uint16_t)((value) >> 16)))
	#define bswap_64(value) \
	(((uint64_t)bswap_32((uint32_t)((value) & 0xffffffff)) << 32) \| \
	(uint64_t)bswap_32((uint32_t)((value) >> 32))) \

	// Convert full name
	if(format=="int8" && remaining_data_len>=1) {
	ret=QString().sprintf("%d",(int8_t)p_data);
	} else if(format=="uint8" && remaining_data_len>=1) {
	ret=QString().sprintf("%u",(uint8_t)p_data);
	} else if(format=="int16" && remaining_data_len>=2) {
	int16_t val=(int16_t)p_data;
	if(little_endian) ret=QString().sprintf("%d",val);
	else ret=QString().sprintf("%d",bswap_16(val));
	} else if(format=="uint16" && remaining_data_len>=2) {
	uint16_t val=(uint16_t)p_data;
	if(little_endian) ret=QString().sprintf("%u",val);
	else ret=QString().sprintf("%u",bswap_16(val));
	} else if(format=="int32" && remaining_data_len>=4) {
	int32_t val=(int32_t)p_data;
	if(little_endian) ret=QString().sprintf("%d",val);
	else ret=QString().sprintf("%d",bswap_32(val));
	} else if(format=="uint32" && remaining_data_len>=4) {
	uint32_t val=(uint32_t)p_data;
	if(little_endian) ret=QString().sprintf("%u",val);
	else ret=QString().sprintf("%u",bswap_32(val));
	} else if(format=="unixtime" && remaining_data_len>=4) {
	uint32_t val=(uint32_t)p_data;
	if(!little_endian) val=bswap_32(val);
	if(val==0) {
	ret="n/a";
	} else {
	QDateTime date_time;
	date_time.setTimeSpec(Qt::UTC);
	date_time.setTime_t(val);
	ret=date_time.toString("yyyy/MM/dd hh:mm:ss");
	}
	} else if(format=="int64" && remaining_data_len>=8) {
	int64_t val=(int64_t)p_data;
	if(little_endian) ret=QString("%1").arg(val);
	else ret=QString("%1").arg((int64_t)bswap_64(val));
	} else if(format=="uint64" && remaining_data_len>=8) {
	uint64_t val=(uint64_t)p_data;
	if(little_endian) ret=QString("%1").arg(val);
	else ret=QString("%1").arg(bswap_64(val));
	/*
	// TODO: Check how one could implement this
	} else if(format=="unixtime64" && remaining_data_len>=8) {
	if((uint64_t)p_data==0) {
	ret="n/a";
	} else {
	uint64_t secs=(uint64_t)p_data;
	QDateTime date_time;
	date_time.setTimeSpec(Qt::UTC);
	// Set 32bit part of date/time
	date_time.setTime_t(secs&0xFFFFFFFF);
	// Now add high 32bit part of date/time
	date_time.addSecs(secs>>32);
	ret=date_time.toString("yyyy/MM/dd hh:mm:ss");
	}
	*/
	} else if(format=="filetime" && remaining_data_len>=8) {
	uint64_t val=(uint64_t)p_data;
	if(!little_endian) val=bswap_64(val);
	if(val==0) {
	ret="n/a";
	} else {
	// TODO: Warn if >32bit
	QDateTime date_time;
	date_time.setTimeSpec(Qt::UTC);
	date_time.setTime_t(RegistryHive::FiletimeToUnixtime(val));
	ret=date_time.toString("yyyy/MM/dd hh:mm:ss");
	}
	} else if(format=="ascii") {
	// TODO: This fails bad if the string is not null terminated!! It might be
	// wise checking for a null char here
	ret=QString().fromAscii((char*)p_data,length);
	} else if(format=="utf16" && remaining_data_len>=2) {
	ret=QString().fromUtf16((ushort*)p_data,length);
	} else {
	// Unknown variant type or another error
	return QString();
	}

	return ret;
	}

	/*
	* KeyValueToStringList
	*/
	QStringList RegistryHive::KeyValueToStringList(QByteArray value,
	int value_type)
	{
	+ // TODO: Fails bad if string is ASCCI and not UTF16XX!!!
	QStringList result;
	const char str_sep[2]={0x00,0x00};
	int last_pos=0,cur_pos=0;

	// Only supported on REG_MULTI_SZ values!!
	if(value_type!=hive_t_REG_MULTI_SZ) return QStringList();

	while(last_pos<value.count() &&
	(cur_pos=value.indexOf(QByteArray().fromRawData(str_sep,2),last_pos))!=-1)
	{
	if(cur_pos!=last_pos) {
	// TODO: What happens if encoding is not UTF16-LE ??? Thx Billy!!!
	result.append(QString().fromUtf16((ushort*)value
	.mid(last_pos,cur_pos-last_pos)
	.append(QByteArray().fromRawData(str_sep,2))
	.constData()));
	}
	last_pos=cur_pos+3;
	}

	return result;
	}

	/*
	* KeyValueToStringList
	*/
	QStringList RegistryHive::KeyValueToStringList(QByteArray value,
	QString value_type)
	{
	return RegistryHive::KeyValueToStringList(value,
	RegistryHive::StringToKeyValueType(
	value_type));
	}

	/*
	* GetKeyValueTypes
	*/
	QStringList RegistryHive::GetKeyValueTypes() {
	return QStringList()<<"REG_NONE"
	<<"REG_SZ"
	<<"REG_EXPAND_SZ"
	<<"REG_BINARY"
	<<"REG_DWORD"
	<<"REG_DWORD_BIG_ENDIAN"
	<<"REG_LINK"
	<<"REG_MULTI_SZ"
	<<"REG_RESOURCE_LIST"
	<<"REG_FULL_RESOURCE_DESC"
	<<"REG_RESOURCE_REQ_LIST"
	<<"REG_QWORD";
	}

	/*
	* KeyTypeToString
	*/
	QString RegistryHive::KeyValueTypeToString(int value_type) {
	QString ret="";

	switch(value_type) {
	case hive_t_REG_NONE:
	ret="REG_NONE";
	break;
	case hive_t_REG_SZ:
	ret="REG_SZ";
	break;
	case hive_t_REG_EXPAND_SZ:
	ret="REG_EXPAND_SZ";
	break;
	case hive_t_REG_BINARY:
	ret="REG_BINARY";
	break;
	case hive_t_REG_DWORD:
	ret="REG_DWORD";
	break;
	case hive_t_REG_DWORD_BIG_ENDIAN:
	ret="REG_DWORD_BIG_ENDIAN";
	break;
	case hive_t_REG_LINK:
	ret="REG_LINK";
	break;
	case hive_t_REG_MULTI_SZ:
	ret="REG_MULTI_SZ";
	break;
	case hive_t_REG_RESOURCE_LIST:
	ret="REG_RESOURCE_LIST";
	break;
	case hive_t_REG_FULL_RESOURCE_DESCRIPTOR:
	ret="REG_FULL_RESOURCE_DESC";
	break;
	case hive_t_REG_RESOURCE_REQUIREMENTS_LIST:
	ret="REG_RESOURCE_REQ_LIST";
	break;
	case hive_t_REG_QWORD:
	ret="REG_QWORD";
	break;
	default:
	ret=QString().sprintf("0x%08X",(uint32_t)value_type);
	}

	return ret;
	}

	/*
	* StringToKeyValueType
	*/
	int RegistryHive::StringToKeyValueType(QString value_type) {
	if(value_type=="REG_NONE") return hive_t_REG_NONE;
	if(value_type=="REG_SZ") return hive_t_REG_SZ;
	if(value_type=="REG_EXPAND_SZ") return hive_t_REG_EXPAND_SZ;
	if(value_type=="REG_BINARY") return hive_t_REG_BINARY;
	if(value_type=="REG_DWORD") return hive_t_REG_DWORD;
	if(value_type=="REG_DWORD_BIG_ENDIAN") return hive_t_REG_DWORD_BIG_ENDIAN;
	if(value_type=="REG_LINK") return hive_t_REG_LINK;
	if(value_type=="REG_MULTI_SZ") return hive_t_REG_MULTI_SZ;
	if(value_type=="REG_RESOURCE_LIST") return hive_t_REG_RESOURCE_LIST;
	if(value_type=="REG_FULL_RESOURCE_DESC")
	return hive_t_REG_FULL_RESOURCE_DESCRIPTOR;
	if(value_type=="REG_RESOURCE_REQ_LIST")
	return hive_t_REG_RESOURCE_REQUIREMENTS_LIST;
	if(value_type=="REG_QWORD") return hive_t_REG_QWORD;

	// I think this might be a good default :-)
	return hive_t_REG_BINARY;
	}

	/*
	* FiletimeToUnixtime
	*/
	uint64_t RegistryHive::FiletimeToUnixtime(int64_t filetime) {
	return (unsigned)((filetime-EPOCH_DIFF)/10000000);
	}

	/*
	* AddNode
	*/
	int RegistryHive::AddNode(QString parent_node_path, QString node_name) {
	if(!this->is_hive_writable) return 0;

	// Make sure name does not contain a backslash char
	if(node_name.contains('\\')) {
	this->SetError(tr("Unable to add node with name '%1'. "
	"Names can not include a backslash character.")
	.arg(node_name));
	return 0;
	}

	// Get node handle to the parent where the new node should be created
	hive_node_h parent_node;
	if(!this->GetNodeHandle(parent_node_path,&parent_node)) {
	this->SetError(tr("Unable to get node handle for '%1'!")
	.arg(parent_node_path));
	return 0;
	}

	// Make sure there is no other node with same name
	QMap<QString,int> child_nodes=this->GetNodes(parent_node);
	if(child_nodes.contains(node_name.toAscii())) {
	this->SetError(tr("The node '%1\\%2' already exists!")
	.arg(parent_node_path,node_name));
	return 0;
	}

	// Add new node
	hive_node_h new_node=hivex_node_add_child(this->p_hive,
	parent_node,
	node_name.toAscii().constData());
	if(new_node==0) {
	this->SetError(tr("Unable to create new node '%1\\%2'!")
	.arg(parent_node_path,node_name));
	return 0;
	}

	this->has_changes_to_commit=true;
	return new_node;
	}

	/*
	* DeleteNode
	*/
	bool RegistryHive::DeleteNode(QString node_path) {
	if(!this->is_hive_writable) return false;

	// Get node handle to the node that should be deleted
	hive_node_h node;
	if(!this->GetNodeHandle(node_path,&node)) {
	this->SetError(tr("Unable to get node handle for '%1'!")
	.arg(node_path));
	return false;
	}

	// Delete node
	if(hivex_node_delete_child(this->p_hive,node)==-1) {
	this->SetError(tr("Unable to delete node '%1'!")
	.arg(node_path));
	return false;
	}

	this->has_changes_to_commit=true;
	return true;
	}

	/*
	* AddKey
	*/
	int RegistryHive::AddKey(QString parent_node_path,
	QString key_name,
	QString key_value_type,
	QByteArray key_value)
	{
	if(!this->is_hive_open \|\| !this->is_hive_writable) {
	// TODO: Set error
	return false;
	}

	return this->SetKey(parent_node_path,
	key_name,
	key_value_type,
	key_value,
	true);
	}

	/*
	* UpdateKey
	*/
	int RegistryHive::UpdateKey(QString parent_node_path,
	QString key_name,
	QString key_value_type,
	QByteArray key_value)
	{
	if(!this->is_hive_open \|\| !this->is_hive_writable) {
	// TODO: Set error
	return false;
	}

	return this->SetKey(parent_node_path,
	key_name,
	key_value_type,
	key_value,
	false);
	}

	/*
	* DeleteKey
	*/
	bool RegistryHive::DeleteKey(QString parent_node_path, QString key_name) {
	if(!this->is_hive_open \|\| !this->is_hive_writable) {
	// TODO: Set error
	return false;
	}

	// libhivex offers no possibility to delete a single key :-(
	// As a work around, this function temporarly stores all keys of the specified
	// node, then deletes them all an re-creates all but the one that should be
	// deleted.

	// Get handle to parent node
	hive_node_h parent_node;
	if(!this->GetNodeHandle(parent_node_path,&parent_node)) {
	// TODO: Set error
	return false;
	}

	// Get all child keys
	hive_value_h *p_keys=hivex_node_values(this->p_hive,parent_node);
	if(p_keys==NULL) {
	this->SetError(tr("Unable to enumerate child keys for parent '%1'!")
	.arg(parent_node_path));
	return false;
	}

	// Get all child key values except the one that should be deleted
	int i=0;
	char *p_name;
	int node_keys_count=0;
	hive_set_value *node_keys=NULL;

	#define FREE_NODE_KEYS() { \
	for(int x=0;x<node_keys_count;x++) { \
	free(node_keys[x].key); \
	free(node_keys[x].value); \
	} \
	free(node_keys); \
	}

	while(p_keys[i]) {
	p_name=hivex_value_key(this->p_hive,p_keys[i]);
	if(p_name==NULL) {
	this->SetError(tr("Unable to get key name for a child of '%1'!")
	.arg(parent_node_path));
	return false;
	}
	if(QString(p_name)!=key_name) {
	// Current key is not the one that should be deleted, save it
	// Alloc mem for new hive_set_value struct in node_keys array
	node_keys=(hive_set_value*)realloc(node_keys,
	sizeof(hive_set_value)*
	(node_keys_count+1));
	if(node_keys==NULL) {
	this->SetError(tr("Unable to alloc enough memory for all child keys!"));
	return false;
	}
	// Save key name in hive_set_value struct
	node_keys[node_keys_count].key=p_name;
	// Get key value, key value type and key value len and save to
	// hive_set_value struct
	node_keys[node_keys_count].value=
	hivex_value_value(this->p_hive,
	p_keys[i],
	&(node_keys[node_keys_count].t),
	&(node_keys[node_keys_count].len));
	if(node_keys[node_keys_count].value==NULL) {
	this->SetError(tr("Unable to get value for key '%1'!").arg(p_name));
	free(p_name);
	// Free all temporary stored keys
	FREE_NODE_KEYS();
	return false;
	}
	node_keys_count++;
	} else {
	// Current key is to be deleted, ignore it
	free(p_name);
	}
	i++;
	}

	// Save all stored keys to hive, which will discard the one that should be
	// deleted
	if(hivex_node_set_values(this->p_hive,
	parent_node,
	node_keys_count,
	node_keys,
	0)!=0)
	{
	this->SetError(tr("Unable to re-save all child keys! Please discard any "
	"changes you made and start over. No doing so might end "
	"in data loss!"));
	// Free all temporary stored keys
	FREE_NODE_KEYS();
	return false;
	}

	// Free all temporary stored keys and return
	FREE_NODE_KEYS();

	#undef FREE_NODE_KEYS

	this->has_changes_to_commit=true;
	return true;
	}

	/*******************************************************************************
	* Private
	******************************************************************************/

	/*
	* HivexError2String
	*/
	QString RegistryHive::HivexError2String(int error) {
	switch(error) {
	case ENOTSUP:
	return QString("Corrupt or unsupported Registry file format.");
	break;
	case HIVEX_NO_KEY:
	return QString("Missing root key.");
	break;
	case EINVAL:
	return QString("Passed an invalid argument to the function.");
	break;
	case EFAULT:
	return QString("Followed a Registry pointer which goes outside the "
	"registry or outside a registry block.");
	break;
	case ELOOP:
	return QString("Registry contains cycles.");
	break;
	case ERANGE:
	return QString("Field in the registry out of range.");
	break;
	case EEXIST:
	return QString("Registry key already exists.");
	break;
	case EROFS:
	return QString("Tried to write to a registry which is not opened for "
	"writing.");
	break;
	default:
	return QString("Unknown error.");
	}
	}

	/*
	* SetError
	*/
	void RegistryHive::SetError(QString msg) {
	this->erro_msg=msg;
	this->is_error=true;
	}

	/*
	* GetNodeHandle
	*/
	bool RegistryHive::GetNodeHandle(QString &path, hive_node_h *p_node) {
	QStringList nodes;
	int i=0;

	// Get root node handle
	*p_node=hivex_root(this->p_hive);
	if(*p_node==0) {
	this->SetError(tr("Unable to get root node!"));
	return false;
	}

	if(path!="\\") {
	// If we aren't listing the root node, we have to get a handle to the
	// last node in the path. Split path into nodes
	nodes=path.split('\\',QString::SkipEmptyParts);

	// Iterate to the correct parent node
	for(i=0;i<nodes.count();i++) {
	*p_node=hivex_node_get_child(this->p_hive,
	*p_node,
	nodes.value(i).toAscii().constData());
	if(*p_node==0) {
	this->SetError(tr("Unable to find node '%1'!").arg(nodes.value(i)));
	return false;
	}
	}
	}

	return true;
	}

	/*
	* GetKeyHandle
	*/
	bool RegistryHive::GetKeyHandle(QString &parent_node_path,
	QString &key_name,
	hive_value_h *p_key)
	{
	// Get handle to parent node
	hive_node_h parent_node;
	if(!this->GetNodeHandle(parent_node_path,&parent_node)) {
	// TODO: Set error
	return false;
	}

	// Get handle to key
	*p_key=hivex_node_get_value(this->p_hive,
	parent_node,
	key_name.toAscii().constData());
	if(*p_key==0) {
	// TODO: Set error
	return false;
	}

	return true;
	}

	/*
	* GetNodesHelper
	*/
	QMap<QString,int> RegistryHive::GetNodesHelper(hive_node_h parent_node) {
	QMap<QString,int> keys;
	char *p_name;
	int i=0;

	// Get child nodes
	hive_node_h *child_nodes=hivex_node_children(this->p_hive,parent_node);
	if(child_nodes==NULL) {
	this->SetError(
	tr("Unable to enumerate child nodes!"));
	return QMap<QString,int>();
	}

	// Build result
	keys.clear();
	i=0;
	while(child_nodes[i]) {
	p_name=hivex_node_name(this->p_hive,child_nodes[i]);
	if(p_name==NULL) {
	this->SetError(tr("Unable to get node name!"));
	free(child_nodes);
	return QMap<QString,int>();
	}
	keys.insert(QString(p_name),(int)child_nodes[i]);
	free(p_name);
	i++;
	}
	free(child_nodes);

	return keys;
	}

	/*
	* GetKeysHelper
	*/
	QMap<QString,int> RegistryHive::GetKeysHelper(hive_node_h parent_node) {
	QMap<QString,int> keys;
	char *p_name;
	int i=0;

	// Get child keys
	hive_value_h *p_keys=hivex_node_values(this->p_hive,parent_node);
	if(p_keys==NULL) {
	this->SetError(
	tr("Unable to enumerate child keys!"));
	return QMap<QString,int>();
	}

	// Build result list
	keys.clear();
	i=0;

	while(p_keys[i]) {
	p_name=hivex_value_key(this->p_hive,p_keys[i]);
	if(p_name==NULL) {
	this->SetError(tr("Unable to get key name!"));
	return QMap<QString,int>();
	}
	keys.insert(QString(p_name),p_keys[i]);
	free(p_name);
	i++;
	}
	free(p_keys);

	return keys;
	}

	/*
	* GetKeyValueHelper
	*/
	QByteArray RegistryHive::GetKeyValueHelper(hive_value_h hive_key,
	int *p_value_type,
	size_t *p_value_len)
	{
	QByteArray key_value;
	char *p_key_value;

	p_key_value=hivex_value_value(this->p_hive,
	hive_key,
	(hive_type*)p_value_type,
	p_value_len);
	if(p_key_value==NULL) {
	this->SetError(tr("Unable to get key value!"));
	*p_value_type=-1;
	return QByteArray();
	}

	// Feed QByteArray and free p_key_value
	key_value=QByteArray(p_key_value,*p_value_len);
	free(p_key_value);

	return key_value;
	}

	/*
	* PathExists
	*/
	bool RegistryHive::PathExists(QString path) {
	bool ret;
	hive_node_h node;

	ret=this->GetNodeHandle(path,&node);
	if(!ret \|\| this->Error()) {
	// Clear error and return false
	this->GetErrorMsg();
	return false;
	}

	return true;
	}

	/*
	* SetKey
	*/
	int RegistryHive::SetKey(QString &parent_node_path,
	QString &key_name,
	QString &key_value_type,
	QByteArray &key_value,
	bool create_key)
	{
	// Get node handle to the node that holds the key to create/update
	hive_node_h parent_node;
	if(!this->GetNodeHandle(parent_node_path,&parent_node)) {
	// TODO: Set error
	return 0;
	}

	// Make sure key exists if we should update it
	if(!create_key) {
	hive_value_h temp_key=hivex_node_get_value(this->p_hive,
	parent_node,
	key_name.toAscii().constData());
	if(temp_key==0) {
	// TODO: Set error
	return 0;
	}
	}

	// Create and populate hive_set_value structure
	// TODO: From the hivex docs
	// Note that the value field is just treated as a list of bytes, and is stored
	// directly in the hive. The caller has to ensure correct encoding and
	// endianness, for example converting dwords to little endian.
	hive_set_value key_val;
	key_val.key=(char)malloc((sizeof(char)key_name.toAscii().count())+1);
	key_val.value=(char)malloc(sizeof(char)key_value.size());
	if(key_val.key==NULL \|\| key_val.value==NULL) {
	// TODO: Set error
	return 0;
	}
	strcpy(key_val.key,key_name.toAscii().constData());
	key_val.t=(hive_type)this->StringToKeyValueType(key_value_type);
	key_val.len=key_value.size();
	memcpy(key_val.value,key_value.constData(),key_value.size());

	// Create/Update key
	if(hivex_node_set_value(this->p_hive,parent_node,&key_val,0)!=0) {
	// TODO: Set error
	return 0;
	}

	// Free the hive_set_value structure
	free(key_val.key);
	free(key_val.value);

	// To make sure everything worked, a hadle to the new key is now requeried
	// from hive and then returned
	hive_value_h key;
	if(!this->GetKeyHandle(parent_node_path,key_name,&key)) {
	// TODO: Set error
	return 0;
	}

	this->has_changes_to_commit=true;
	return key;
	}
	diff --git a/trunk/registrykeytable.cpp b/trunk/registrykeytable.cpp
	index 01a9e9c..d01cfe5 100644
	--- a/trunk/registrykeytable.cpp
	+++ b/trunk/registrykeytable.cpp
	@@ -1,203 +1,211 @@
	/*******************************************************************************
	* fred Copyright (c) 2011-2013 by Gillen Daniel <gillen.dan@pinguin.lu> *
	* *
	* Forensic Registry EDitor (fred) is a cross-platform M$ registry hive editor *
	* with special feautures useful during forensic analysis. *
	* *
	* This program 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 3 of the License, or (at your option) *
	* any later version. *
	* *
	* This program 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 program. If not, see <http://www.gnu.org/licenses/>. *
	*******************************************************************************/

	#include "registrykeytable.h"

	#include <QHeaderView>
	#include <QApplication>
	#include <QClipboard>

	/*******************************************************************************
	* Public
	******************************************************************************/

	RegistryKeyTable::RegistryKeyTable(QWidget *p_parent) : QTableView(p_parent) {
	this->is_writable=false;

	// Configure widget
	this->setSelectionMode(QAbstractItemView::SingleSelection);
	this->setSelectionBehavior(QAbstractItemView::SelectRows);
	this->setAutoScroll(false);
	this->setHorizontalScrollMode(QAbstractItemView::ScrollPerPixel);
	this->verticalHeader()->setHidden(true);
	this->setTextElideMode(Qt::ElideNone);

	// Create context menu item
	- this->p_action_add_key=new QAction(tr("Add key"),this);
	- this->p_action_edit_key=new QAction(tr("Edit key"),this);
	- this->p_action_delete_key=new QAction(tr("Delete key"),this);
	+ this->p_action_add_key=new QAction(tr("Add new key"),this);
	+ this->p_action_edit_key=new QAction(tr("Edit selected key"),this);
	+ this->p_action_delete_key=new QAction(tr("Delete selected key"),this);
	this->p_menu_copy=new QMenu(tr("Copy"),this);
	- this->p_action_copy_key_name=new QAction(tr("Key name"),this->p_menu_copy);
	+ this->p_action_copy_key_name=
	+ new QAction(tr("Selected key name"),this->p_menu_copy);
	this->p_menu_copy->addAction(this->p_action_copy_key_name);
	- this->p_action_copy_key_value=new QAction(tr("Key value"),this->p_menu_copy);
	+ this->p_action_copy_key_value=
	+ new QAction(tr("Selected key value"),this->p_menu_copy);
	this->p_menu_copy->addAction(this->p_action_copy_key_value);

	// Connect context menu signals
	this->connect(this->p_action_add_key,
	SIGNAL(triggered()),
	this,
	SLOT(SlotAddKey()));
	this->connect(this->p_action_edit_key,
	SIGNAL(triggered()),
	this,
	SLOT(SlotEditKey()));
	this->connect(this->p_action_delete_key,
	SIGNAL(triggered()),
	this,
	SLOT(SlotDeleteKey()));
	this->connect(this->p_action_copy_key_name,
	SIGNAL(triggered()),
	this,
	SLOT(SlotCopyKeyName()));
	this->connect(this->p_action_copy_key_value,
	SIGNAL(triggered()),
	this,
	SLOT(SlotCopyKeyValue()));
	}

	RegistryKeyTable::~RegistryKeyTable() {
	// Delete context menu
	delete this->p_action_copy_key_name;
	delete this->p_action_copy_key_value;
	delete this->p_menu_copy;
	delete this->p_action_delete_key;
	delete this->p_action_edit_key;
	delete this->p_action_add_key;
	}

	void RegistryKeyTable::setModel(QAbstractItemModel *p_model, bool writable) {
	QTableView::setModel(p_model);
	// Resize table rows / columns to fit data
	this->resizeColumnsToContents();
	this->resizeRowsToContents();
	this->horizontalHeader()->stretchLastSection();
	if(p_model!=NULL && p_model->rowCount()>0) {
	// Select first table item
	this->selectRow(0);
	}

	// Set writable status
	this->SetWritable(writable);
	}

	void RegistryKeyTable::SetWritable(bool writable) {
	this->is_writable=writable;
	this->p_action_add_key->setEnabled(this->is_writable);
	this->p_action_edit_key->setEnabled(this->is_writable);
	this->p_action_delete_key->setEnabled(this->is_writable);
	}

	/*
	void RegistryKeyTable::selectRow(QString key_name) {
	int i;

	this->clearSelection();
	for(i=0;i<this->model()->rowCount();i++) {
	if(this->model())
	}
	}
	*/

	/*******************************************************************************
	* Protected
	******************************************************************************/

	int RegistryKeyTable::sizeHintForColumn(int column) const {
	int size_hint=-1;
	int i=0;
	int item_width=0;
	QFontMetrics fm(this->fontMetrics());
	QModelIndex idx;

	if(this->model()==NULL) return -1;

	// Find string that needs the most amount of space
	idx=this->model()->index(i,column);
	while(idx.isValid()) {
	item_width=fm.width(this->model()->data(idx).toString())+10;
	if(item_width>size_hint) size_hint=item_width;
	idx=this->model()->index(++i,column);
	}

	return size_hint;
	}

	void RegistryKeyTable::contextMenuEvent(QContextMenuEvent *p_event) {
	- // Only show context menu when a row is selected
	- if(this->selectedIndexes().count()!=3) return;
	- // Only show context menu when user clicked on selected row
	- if(!(this->indexAt(p_event->pos())==this->selectedIndexes().at(0) \|\|
	- this->indexAt(p_event->pos())==this->selectedIndexes().at(1) \|\|
	- this->indexAt(p_event->pos())==this->selectedIndexes().at(2)))
	- {
	- return;
	+ // Only show context menu if a hive is open (a model was set)
	+ if(this->model()==NULL) return;
	+
	+ // Decide what menus should be enabled
	+ if(this->selectedIndexes().count()==3) {
	+ // A row is selected, enable full context menu
	+ this->p_action_edit_key->setEnabled(true);
	+ this->p_action_delete_key->setEnabled(true);
	+ this->p_menu_copy->setEnabled(true);
	+ } else {
	+ // No row is selected, disable all menu items except AddKey
	+ this->p_action_edit_key->setEnabled(false);
	+ this->p_action_delete_key->setEnabled(false);
	+ this->p_menu_copy->setEnabled(false);
	}

	- // Emit a click signal
	+ // Emit clicked signal (makes sure item under cursor is selected if it wasn't)
	emit(this->clicked(this->indexAt(p_event->pos())));

	- // Create context menu and add actions
	+ // Create context menu, add actions and show it
	QMenu context_menu(this);
	context_menu.addAction(this->p_action_add_key);
	context_menu.addAction(this->p_action_edit_key);
	context_menu.addAction(this->p_action_delete_key);
	context_menu.addSeparator();
	context_menu.addMenu(this->p_menu_copy);
	context_menu.exec(p_event->globalPos());
	}

	void RegistryKeyTable::currentChanged(const QModelIndex &current,
	const QModelIndex &previous)
	{
	// Call parent class's currentChanged first
	QTableView::currentChanged(current,previous);

	// Now emit our signal
	QModelIndex current_item=QModelIndex(current);
	emit(RegistryKeyTable::CurrentItemChanged(current_item));
	}

	/*******************************************************************************
	* Private slots
	******************************************************************************/

	void RegistryKeyTable::SlotAddKey() {
	emit(this->SignalAddKey());
	}

	void RegistryKeyTable::SlotEditKey() {
	emit(this->SignalEditKey(this->selectedIndexes().at(0)));
	}

	void RegistryKeyTable::SlotDeleteKey() {
	emit(this->SignalDeleteKey(this->selectedIndexes().at(0)));
	}

	void RegistryKeyTable::SlotCopyKeyName() {
	QApplication::clipboard()->
	setText(this->selectedIndexes().at(0).data().toString(),
	QClipboard::Clipboard);
	}

	void RegistryKeyTable::SlotCopyKeyValue() {
	QApplication::clipboard()->
	setText(this->selectedIndexes().at(2).data().toString(),
	QClipboard::Clipboard);
	}
	diff --git a/trunk/registrynodetree.cpp b/trunk/registrynodetree.cpp
	index cb7692b..3e6fc76 100644
	--- a/trunk/registrynodetree.cpp
	+++ b/trunk/registrynodetree.cpp
	@@ -1,181 +1,185 @@
	/*******************************************************************************
	* fred Copyright (c) 2011-2013 by Gillen Daniel <gillen.dan@pinguin.lu> *
	* *
	* Forensic Registry EDitor (fred) is a cross-platform M$ registry hive editor *
	* with special feautures useful during forensic analysis. *
	* *
	* This program 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 3 of the License, or (at your option) *
	* any later version. *
	* *
	* This program 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 program. If not, see <http://www.gnu.org/licenses/>. *
	*******************************************************************************/

	-#include "registrynodetree.h"
	-#include "registrynodetreemodel.h"
	-
	#include <QHeaderView>
	#include <QApplication>
	#include <QClipboard>

	+#include <QDebug>
	+
	+#include "registrynodetree.h"
	+#include "registrynodetreemodel.h"
	+
	/*******************************************************************************
	* Public
	******************************************************************************/

	RegistryNodeTree::RegistryNodeTree(QWidget *p_parent) : QTreeView(p_parent) {
	this->is_writable=false;

	// Configure widget
	this->setTextElideMode(Qt::ElideNone);
	this->setSelectionMode(QAbstractItemView::SingleSelection);
	this->setSelectionBehavior(QAbstractItemView::SelectRows);
	this->sortByColumn(0,Qt::AscendingOrder);
	this->setSortingEnabled(true);

	// Create context menu items
	- this->p_action_add_node=new QAction(tr("Add node"),this);
	- this->p_action_delete_node=new QAction(tr("Delete node"),this);
	+ this->p_action_add_node=new QAction(tr("Add new node"),this);
	+ this->p_action_delete_node=new QAction(tr("Delete selected node"),this);
	this->p_menu_copy=new QMenu(tr("Copy"),this);
	- this->p_action_copy_node_name=new QAction(tr("Node name"),this->p_menu_copy);
	+ this->p_action_copy_node_name=
	+ new QAction(tr("Selected node name"),this->p_menu_copy);
	this->p_menu_copy->addAction(this->p_action_copy_node_name);
	- this->p_action_copy_node_path=new QAction(tr("Node path"),this->p_menu_copy);
	+ this->p_action_copy_node_path=
	+ new QAction(tr("Selected node path"),this->p_menu_copy);
	this->p_menu_copy->addAction(this->p_action_copy_node_path);

	// Connect context menu signals
	this->connect(this->p_action_add_node,
	SIGNAL(triggered()),
	this,
	SLOT(SlotAddNode()));
	this->connect(this->p_action_delete_node,
	SIGNAL(triggered()),
	this,
	SLOT(SlotDeleteNode()));
	this->connect(this->p_action_copy_node_name,
	SIGNAL(triggered()),
	this,
	SLOT(SlotCopyNodeName()));
	this->connect(this->p_action_copy_node_path,
	SIGNAL(triggered()),
	this,
	SLOT(SlotCopyNodePath()));
	}

	RegistryNodeTree::~RegistryNodeTree() {
	// Delete context menu
	delete this->p_action_copy_node_name;
	delete this->p_action_copy_node_path;
	delete this->p_menu_copy;
	delete this->p_action_delete_node;
	delete this->p_action_add_node;
	}

	void RegistryNodeTree::setModel(QAbstractItemModel *p_model, bool writable) {
	// Assign model to view
	QTreeView::setModel(p_model);

	this->header()->setResizeMode(0,QHeaderView::ResizeToContents);
	this->header()->setStretchLastSection(true);
	if(p_model!=NULL && p_model->index(0,0).isValid()) {
	// Select first tree item
	this->setCurrentIndex(p_model->index(0,0));
	}

	// Set writable status
	this->SetWritable(writable);
	}

	void RegistryNodeTree::SetWritable(bool writable) {
	this->is_writable=writable;
	this->p_action_add_node->setEnabled(this->is_writable);
	this->p_action_delete_node->setEnabled(this->is_writable);
	}

	/*******************************************************************************
	* Protected
	******************************************************************************/

	void RegistryNodeTree::contextMenuEvent(QContextMenuEvent *p_event) {
	// Only show context menu when a node is selected
	if(this->selectedIndexes().count()!=2) return;
	// Only show context menu when user clicked on selected row
	- // TODO: Does not work when clicking on column 2
	- if(this->indexAt(p_event->pos())!=this->selectedIndexes().at(0)) return;
	+ if(this->indexAt(p_event->pos()).row()!=this->selectedIndexes().at(0).row())
	+ return;

	// Emit a click signal
	emit(this->clicked(this->indexAt(p_event->pos())));

	// Create context menu and add actions
	QMenu context_menu(this);
	context_menu.addAction(this->p_action_add_node);
	context_menu.addAction(this->p_action_delete_node);
	context_menu.addSeparator();
	context_menu.addMenu(this->p_menu_copy);
	context_menu.exec(p_event->globalPos());
	}

	void RegistryNodeTree::keyPressEvent(QKeyEvent *p_event) {
	// Only react if a node is selected and user pressed Key_Left
	if(this->selectedIndexes().count()==2 &&
	p_event->key()==Qt::Key_Left)
	{
	QModelIndex cur_index=this->selectedIndexes().at(0);

	if(this->model()->hasChildren(cur_index) && this->isExpanded(cur_index)) {
	// Current node is expanded. Only collapse this one
	this->collapse(cur_index);
	return;
	}
	if(!cur_index.parent().isValid()) {
	// Do no try to collapse anything above root node
	return;
	}
	this->collapse(cur_index.parent());
	this->setCurrentIndex(cur_index.parent());
	return;
	}

	// If we didn't handle the key event, let our parent handle it
	QTreeView::keyPressEvent(p_event);
	}

	void RegistryNodeTree::currentChanged(const QModelIndex &current,
	const QModelIndex &previous)
	{
	// Call parent class's currentChanged first
	QTreeView::currentChanged(current,previous);

	// Now emit our signal
	QModelIndex current_item=QModelIndex(current);
	emit(RegistryNodeTree::CurrentItemChanged(current_item));
	}

	/*******************************************************************************
	* Private slots
	******************************************************************************/

	void RegistryNodeTree::SlotAddNode() {
	emit(RegistryNodeTree::SignalAddNode(this->selectedIndexes().at(0)));
	}

	void RegistryNodeTree::SlotDeleteNode() {
	emit(RegistryNodeTree::SignalDeleteNode(this->selectedIndexes().at(0)));
	}

	void RegistryNodeTree::SlotCopyNodeName() {
	QApplication::clipboard()->
	setText(this->selectedIndexes().at(0).data().toString(),
	QClipboard::Clipboard);
	}

	void RegistryNodeTree::SlotCopyNodePath() {
	QString path=((RegistryNodeTreeModel*)(this->model()))->
	GetNodePath(this->selectedIndexes().at(0));
	QApplication::clipboard()->setText(path,QClipboard::Clipboard);
	}
	diff --git a/trunk/registrynodetreemodel.cpp b/trunk/registrynodetreemodel.cpp
	index d8e7c6c..f474f44 100644
	--- a/trunk/registrynodetreemodel.cpp
	+++ b/trunk/registrynodetreemodel.cpp
	@@ -1,313 +1,327 @@
	/*******************************************************************************
	* fred Copyright (c) 2011-2013 by Gillen Daniel <gillen.dan@pinguin.lu> *
	* *
	* Forensic Registry EDitor (fred) is a cross-platform M$ registry hive editor *
	* with special feautures useful during forensic analysis. *
	* *
	* This program 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 3 of the License, or (at your option) *
	* any later version. *
	* *
	* This program 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 program. If not, see <http://www.gnu.org/licenses/>. *
	*******************************************************************************/
	#include "registrynodetreemodel.h"

	#include <QList>
	#include <QStringList>
	#include <QVariant>
	#include <QDateTime>

	#include <inttypes.h>

	/*******************************************************************************
	* Public
	******************************************************************************/

	RegistryNodeTreeModel::RegistryNodeTreeModel(RegistryHive *p_hive,
	QObject *p_parent)
	: QAbstractItemModel(p_parent)
	{
	// Create root node. It's values will be used as header values.
	this->p_root_node=new RegistryNode(QList<QVariant>()<<tr("Node")
	<<tr("Last mod. time"));
	// Load data
	this->SetupModelData(p_hive,this->p_root_node);
	}

	RegistryNodeTreeModel::~RegistryNodeTreeModel() {
	delete this->p_root_node;
	}

	QVariant RegistryNodeTreeModel::data(const QModelIndex &index, int role) const
	{
	if(!index.isValid()) return QVariant();
	if(role!=Qt::DisplayRole) return QVariant();

	RegistryNode p_node=static_cast<RegistryNode>(index.internalPointer());

	switch(role) {
	case Qt::DisplayRole: {
	switch(index.column()) {
	case RegistryNodeTreeModel::ColumnContent_NodeName: {
	return p_node->Data(index.column());
	break;
	}
	case RegistryNodeTreeModel::ColumnContent_NodeModTime: {
	QDateTime date_time;
	bool ok=false;
	date_time.setTimeSpec(Qt::UTC);
	date_time.setTime_t(RegistryHive::FiletimeToUnixtime(
	p_node->Data(index.column()).toLongLong(&ok)));
	if(ok) return date_time.toString("yyyy/MM/dd hh:mm:ss");
	else return tr("Unknown");
	break;
	}
	default: {
	return QVariant();
	}
	}
	break;
	}
	default: {
	return QVariant();
	}
	}

	// Control will never reach this, but in order to stop g++ complaining...
	return QVariant();
	}

	Qt::ItemFlags RegistryNodeTreeModel::flags(const QModelIndex &index) const {
	if(!index.isValid()) return 0;
	return Qt::ItemIsEnabled \| Qt::ItemIsSelectable;
	}

	QVariant RegistryNodeTreeModel::headerData(int section,
	Qt::Orientation orientation,
	int role) const
	{
	// Only horizontal header is supported
	if(orientation!=Qt::Horizontal) return QVariant();

	switch(role) {
	case Qt::TextAlignmentRole:
	// Handle text alignment
	return Qt::AlignCenter;
	break;
	case Qt::DisplayRole:
	// Header text
	return this->p_root_node->Data(section);
	break;
	default:
	return QVariant();
	}
	}

	QModelIndex RegistryNodeTreeModel::index(int row,
	int column,
	const QModelIndex &parent) const
	{
	if(!this->hasIndex(row,column,parent)) return QModelIndex();

	RegistryNode *p_parent_node;
	if(!parent.isValid()) {
	p_parent_node=this->p_root_node;
	} else {
	p_parent_node=static_cast<RegistryNode*>(parent.internalPointer());
	}

	RegistryNode *p_child_node=p_parent_node->Child(row);
	if(p_child_node) {
	return this->createIndex(row,column,p_child_node);
	} else {
	return QModelIndex();
	}
	}

	QModelIndex RegistryNodeTreeModel::parent(const QModelIndex &index) const {
	if(!index.isValid()) return QModelIndex();

	RegistryNode *p_child_node=
	static_cast<RegistryNode*>(index.internalPointer());
	RegistryNode *p_parent_node=p_child_node->Parent();

	if(p_parent_node==this->p_root_node) {
	return QModelIndex();
	} else {
	return this->createIndex(p_parent_node->Row(),0,p_parent_node);
	}
	}

	int RegistryNodeTreeModel::rowCount(const QModelIndex &parent) const {
	if(parent.column()>0) return 0;

	RegistryNode *p_parent_node;
	if(!parent.isValid()) {
	p_parent_node=this->p_root_node;
	} else {
	p_parent_node=static_cast<RegistryNode*>(parent.internalPointer());
	}

	return p_parent_node->ChildCount();
	}

	int RegistryNodeTreeModel::columnCount(const QModelIndex &parent) const {
	Q_UNUSED(parent);
	return 2;
	}

	-QList<QModelIndex> RegistryNodeTreeModel::GetIndexListOf(QString path) const {
	+QList<QModelIndex> RegistryNodeTreeModel::GetIndexListOf(QString path) {
	RegistryNode *p_parent_node=this->p_root_node;
	QList<QModelIndex> ret;
	QStringList nodes=path.split("\\",QString::SkipEmptyParts);
	bool found=false;

	// Create a list of all index's that form the supplied path
	ret.clear();
	for(int i=0;i<nodes.count();i++) {
	found=false;
	for(uint64_t ii=0;ii<p_parent_node->ChildCount();ii++) {
	if(p_parent_node->Child(ii)->Data(0)==nodes.at(i)) {
	ret.append(this->createIndex(ii,0,p_parent_node->Child(ii)));
	p_parent_node=p_parent_node->Child(ii);
	found=true;
	break;
	}
	}
	// Break when last child node was found
	if(found && i==nodes.count()-1) break;
	// Return an empty list when a child node wasn't found
	else if(!found) return QList<QModelIndex>();
	}

	return ret;
	}

	-QString RegistryNodeTreeModel::GetNodePath(QModelIndex child_index) const
	-{
	+QString RegistryNodeTreeModel::GetNodePath(QModelIndex child_index) {
	QString path;

	+ // Make the specified index point to the ColumnContent_NodeName column!
	+ child_index=this->GetNodeNameIndex(child_index);
	+
	// Get current node name
	path=this->data(child_index,Qt::DisplayRole).toString().prepend("\\");
	// Build node path by prepending all parent nodes names
	while(this->parent(child_index)!=QModelIndex()) {
	child_index=this->parent(child_index);
	path.prepend(this->data(child_index,
	Qt::DisplayRole).toString().prepend("\\"));
	}

	return path;
	}

	QModelIndex RegistryNodeTreeModel::AddNode(RegistryHive *p_hive,
	- const QModelIndex &parent_index,
	+ QModelIndex parent_index,
	int new_node_id,
	QString new_node_name)
	{
	RegistryNode *p_parent_node;
	int64_t key_mod_time;
	RegistryNode *p_node;

	+ // Make the specified index point to the ColumnContent_NodeName column!
	+ parent_index=this->GetNodeNameIndex(parent_index);
	+
	// Get pointer to parent node
	p_parent_node=static_cast<RegistryNode*>(parent_index.internalPointer());

	// Tell users of this view that we are going to insert a row
	emit(RegistryNodeTreeModel::beginInsertRows(parent_index,
	p_parent_node->ChildCount(),
	p_parent_node->ChildCount()));

	// Create and add new node in internal node list
	key_mod_time=p_hive->GetNodeModTime(new_node_id);
	p_node=new RegistryNode(QList<QVariant>()<<new_node_name<<
	QVariant((qlonglong)key_mod_time),
	p_parent_node);
	p_parent_node->AppendChild(p_node);

	// Tell users of this view we have finished inserting a row
	emit(RegistryNodeTreeModel::endInsertRows());

	// Return index to new node
	return this->createIndex(p_parent_node->ChildCount()-1,0,p_node);
	}

	-QModelIndex RegistryNodeTreeModel::RemoveNode(const QModelIndex &index) {
	+QModelIndex RegistryNodeTreeModel::RemoveNode(QModelIndex index) {
	RegistryNode *p_node;
	RegistryNode *p_parent_node;
	int node_row;
	QModelIndex parent_node_index;

	+ // Make the specified index point to the ColumnContent_NodeName column!
	+ index=this->GetNodeNameIndex(index);
	+
	// Get pointers to current node and its parent
	p_node=static_cast<RegistryNode*>(index.internalPointer());
	p_parent_node=p_node->Parent();

	// Get current nodes row
	node_row=p_node->Row();

	// Create index of parent node
	parent_node_index=this->createIndex(p_parent_node->Row(),0,p_parent_node);

	// Tell users of this view that we are going to remove a row
	emit(RegistryNodeTreeModel::beginRemoveRows(parent_node_index,
	node_row,
	node_row));

	// Remove node
	p_parent_node->RemoveChild(node_row);

	// Tell users of this view we have finished removing a row
	emit(RegistryNodeTreeModel::endRemoveRows());

	// Find a suitable index that should be selected after the current one has
	// been deleted.
	if(p_parent_node->ChildCount()>0) {
	// Parent node still has child nodes, return nearest child node
	if(node_row<p_parent_node->ChildCount()) {
	// Any child node removed except the last one, row is still valid
	return this->createIndex(node_row,0,p_parent_node->Child(node_row));
	} else {
	// Last child node removed, row-1 should be valid
	return this->createIndex(node_row-1,0,p_parent_node->Child(node_row-1));
	}
	}
	// If no child nodes are left, return parent node except if it is our root
	// node!
	if(p_parent_node->Parent()!=NULL) return parent_node_index;
	else return QModelIndex();
	}

	/*******************************************************************************
	* Private
	******************************************************************************/

	void RegistryNodeTreeModel::SetupModelData(RegistryHive *p_hive,
	RegistryNode *p_parent,
	int hive_node)
	{
	QMap<QString,int> hive_children;
	RegistryNode *p_node;
	int64_t key_mod_time;

	// Get all sub nodes of current hive node
	if(hive_node) hive_children=p_hive->GetNodes(hive_node);
	else hive_children=p_hive->GetNodes("\\");
	if(hive_children.isEmpty()) return;

	// Recursivly iterate over all sub nodes
	QMapIterator<QString, int> i(hive_children);
	while(i.hasNext()) {
	i.next();
	key_mod_time=p_hive->GetNodeModTime(i.value());
	// TODO: Maybe we have to call GetErrorMsg in case an error occured
	p_node=new RegistryNode(QList<QVariant>()<<i.key()<<
	QVariant((qlonglong)key_mod_time),p_parent);
	p_parent->AppendChild(p_node);
	this->SetupModelData(p_hive,p_node,i.value());
	}
	}
	+
	+QModelIndex RegistryNodeTreeModel::GetNodeNameIndex(QModelIndex index) {
	+ return this->index(index.row(),
	+ RegistryNodeTreeModel::ColumnContent_NodeName,
	+ index.parent());
	+}
	diff --git a/trunk/registrynodetreemodel.h b/trunk/registrynodetreemodel.h
	index 17d8f12..38bf211 100644
	--- a/trunk/registrynodetreemodel.h
	+++ b/trunk/registrynodetreemodel.h
	@@ -1,70 +1,71 @@
	/*******************************************************************************
	* fred Copyright (c) 2011-2013 by Gillen Daniel <gillen.dan@pinguin.lu> *
	* *
	* Forensic Registry EDitor (fred) is a cross-platform M$ registry hive editor *
	* with special feautures useful during forensic analysis. *
	* *
	* This program 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 3 of the License, or (at your option) *
	* any later version. *
	* *
	* This program 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 program. If not, see <http://www.gnu.org/licenses/>. *
	*******************************************************************************/

	#ifndef REGISTRYNODETREEMODEL_H
	#define REGISTRYNODETREEMODEL_H

	#include <QAbstractItemModel>
	#include <QList>
	#include <QString>

	#include "registrynode.h"
	#include "registryhive.h"

	class RegistryNodeTreeModel : public QAbstractItemModel {
	Q_OBJECT

	public:
	+ enum ColumnContent {
	+ ColumnContent_NodeName=0,
	+ ColumnContent_NodeModTime
	+ };
	+
	RegistryNodeTreeModel(RegistryHive p_hive, QObject p_parent=0);
	~RegistryNodeTreeModel();

	QVariant data(const QModelIndex &index, int role) const;
	Qt::ItemFlags flags(const QModelIndex &index) const;
	QVariant headerData(int section,
	Qt::Orientation orientation,
	int role=Qt::DisplayRole) const;
	QModelIndex index(int row,
	int column,
	const QModelIndex &parent=QModelIndex()) const;
	QModelIndex parent(const QModelIndex &index) const;
	int rowCount(const QModelIndex &parent=QModelIndex()) const;
	int columnCount(const QModelIndex &parent=QModelIndex()) const;

	- QList<QModelIndex> GetIndexListOf(QString path) const;
	- QString GetNodePath(QModelIndex child_index) const;
	- QModelIndex AddNode(RegistryHive *p_hive, const QModelIndex &parent_index,
	+ QList<QModelIndex> GetIndexListOf(QString path);
	+ QString GetNodePath(QModelIndex child_index);
	+ QModelIndex AddNode(RegistryHive *p_hive, QModelIndex parent_index,
	int new_node_id,
	QString new_node_name);
	- QModelIndex RemoveNode(const QModelIndex &index);
	+ QModelIndex RemoveNode(QModelIndex index);

	private:
	- enum ColumnContent {
	- ColumnContent_NodeName=0,
	- ColumnContent_NodeModTime
	- };
	-
	RegistryNode *p_root_node;

	void SetupModelData(RegistryHive *p_hive,
	RegistryNode *p_parent,
	int hive_node=0);
	+ QModelIndex GetNodeNameIndex(QModelIndex index);
	};

	#endif // REGISTRYNODETREEMODEL_H

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