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	diff --git a/trunk/mainwindow.cpp b/trunk/mainwindow.cpp
	index c71d74a..5574dc5 100644
	--- a/trunk/mainwindow.cpp
	+++ b/trunk/mainwindow.cpp
	@@ -1,764 +1,787 @@
	/*******************************************************************************
	* 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 FRED_REPORT_TEMPLATE_DIR
	#ifndef __MINGW32__
	#define FRED_REPORT_TEMPLATE_DIR "/usr/share/fred/report_templates/"
	#else
	#define FRED_REPORT_TEMPLATE_DIR ".\\report_templates\\"
	#endif
	#endif

	#include <QFileDialog>
	#include <QMessageBox>
	#include <QStringList>
	#include <QDesktopWidget>
	#include <QDir>
	#include <QSplitter>
	#include <QListIterator>
	#include <QInputDialog>

	#include <QDebug>

	#include "mainwindow.h"
	#include "ui_mainwindow.h"
	#include "dlgabout.h"
	#include "dlgkeydetails.h"
	#include "dlgreportchooser.h"
	#include "dlgreportviewer.h"
	#include "dlgsearch.h"
	#include "dlgpreferences.h"

	#include "compileinfo.h"

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

	MainWindow::MainWindow(ArgParser *p_arg_parser) :
	QMainWindow(0), ui(new Ui::MainWindow)
	{
	ui->setupUi(this);

	// Initialize private vars
	this->p_args=p_arg_parser;
	this->p_hive=new RegistryHive(this);
	this->is_hive_open=false;
	this->p_reg_node_tree_model=NULL;
	this->p_reg_node_tree_model_proxy=NULL;
	this->p_reg_key_table_model=NULL;
	this->p_search_thread=NULL;
	this->search_result_widgets.clear();

	// Init and load settings
	this->p_settings=new Settings(this);
	this->is_hive_writable=!this->p_settings->GetOpenHivesReadOnly();

	// Set main window size
	QByteArray geometry=this->p_settings->GetWindowGeometry("MainWindow");
	if(!geometry.isEmpty()) {
	// Restore saved geometry
	this->restoreGeometry(geometry);
	} else {
	// No saved geometry, calculate and set default
	int cur_screen=QApplication::desktop()->screenNumber(this);
	int window_width=
	QApplication::desktop()->availableGeometry(cur_screen).width()*0.5;
	int window_height=
	QApplication::desktop()->availableGeometry(cur_screen).height()*0.5;
	int window_x=
	(QApplication::desktop()->availableGeometry(cur_screen).width()/2)-
	(window_width/2);
	int window_y=
	(QApplication::desktop()->availableGeometry(cur_screen).height()/2)-
	(window_height/2);
	this->setGeometry(window_x,
	window_y,
	window_width,
	window_height);
	}

	// Create widgets
	this->p_horizontal_splitter=new QSplitter();
	this->p_horizontal_splitter->setOrientation(Qt::Horizontal);

	this->p_node_tree=new RegistryNodeTree(this->p_horizontal_splitter);

	this->p_vertical_splitter=new QSplitter(this->p_horizontal_splitter);
	this->p_vertical_splitter->setOrientation(Qt::Vertical);

	this->p_key_table=new RegistryKeyTable(this->p_vertical_splitter);

	this->p_tab_widget=new TabWidget(this->p_vertical_splitter);

	this->p_hex_edit_widget=new HexEditWidget();

	// Add hexedit page to tab_widget
	this->p_tab_widget->addTab(this->p_hex_edit_widget,tr("Hex viewer"));

	// Add widgets to their splitters
	this->p_vertical_splitter->addWidget(this->p_key_table);
	this->p_vertical_splitter->addWidget(this->p_tab_widget);

	this->p_horizontal_splitter->addWidget(this->p_node_tree);
	this->p_horizontal_splitter->addWidget(this->p_vertical_splitter);

	// Set stretch factors
	QSizePolicy node_tree_policy=this->p_node_tree->sizePolicy();
	node_tree_policy.setHorizontalStretch(1);
	node_tree_policy.setVerticalStretch(100);
	this->p_node_tree->setSizePolicy(node_tree_policy);

	QSizePolicy vertical_splitter_policy=this->p_vertical_splitter->sizePolicy();
	vertical_splitter_policy.setHorizontalStretch(4);
	vertical_splitter_policy.setVerticalStretch(100);
	this->p_vertical_splitter->setSizePolicy(vertical_splitter_policy);

	QSizePolicy key_table_policy=this->p_key_table->sizePolicy();
	key_table_policy.setVerticalStretch(5);
	key_table_policy.setHorizontalStretch(100);
	this->p_key_table->setSizePolicy(key_table_policy);

	QSizePolicy tab_widget_policy=this->p_tab_widget->sizePolicy();
	tab_widget_policy.setVerticalStretch(2);
	tab_widget_policy.setHorizontalStretch(200);
	this->p_tab_widget->setSizePolicy(tab_widget_policy);

	// Connect signals
	this->connect(this->p_node_tree,
	SIGNAL(clicked(QModelIndex)),
	this,
	SLOT(SlotNodeTreeClicked(QModelIndex)));
	this->connect(this->p_node_tree,
	SIGNAL(activated(QModelIndex)),
	this,
	SLOT(SlotNodeTreeClicked(QModelIndex)));
	this->connect(this->p_node_tree,
	SIGNAL(CurrentItemChanged(QModelIndex)),
	this,
	SLOT(SlotNodeTreeClicked(QModelIndex)));
	this->connect(this->p_key_table,
	SIGNAL(clicked(QModelIndex)),
	this,
	SLOT(SlotKeyTableClicked(QModelIndex)));
	this->connect(this->p_key_table,
	SIGNAL(doubleClicked(QModelIndex)),
	this,
	SLOT(SlotKeyTableDoubleClicked(QModelIndex)));
	this->connect(this->p_key_table,
	SIGNAL(CurrentItemChanged(QModelIndex)),
	this,
	SLOT(SlotKeyTableClicked(QModelIndex)));
	this->connect(this->p_tab_widget,
	SIGNAL(tabCloseRequested(int)),
	this,
	SLOT(SlotTabCloseButtonClicked(int)));
	this->connect(this->p_node_tree,
	SIGNAL(SignalAddNode(QModelIndex)),
	this,
	SLOT(SlotAddNode(QModelIndex)));
	this->connect(this->p_node_tree,
	SIGNAL(SignalDeleteNode(QModelIndex)),
	this,
	SLOT(SlotDeleteNode(QModelIndex)));

	// Add central widget
	this->setCentralWidget(this->p_horizontal_splitter);
	this->centralWidget()->setContentsMargins(4,4,4,0);

	// Set window title
	this->UpdateWindowTitle();

	// Create and update recently opened menu
	this->p_recently_opened_menu=new QMenu(this);
	this->ui->ActionRecentlyOpened->setMenu(this->p_recently_opened_menu);
	this->UpdateRecentlyOpenedMenu();

	// Update EnableWriteSupport menu according to defaults
	this->UpdateEnableWriteSupportMenu();

	// Load report templates
	this->p_reports=new Reports(this->p_settings);

	// Finally, react on some command line arguments
	if(this->p_args->IsSet("maximized")) {
	this->setWindowState(Qt::WindowMaximized);
	}
	if(this->p_args->IsSet("fullscreen")) {
	this->setWindowState(Qt::WindowFullScreen);
	}
	if(this->p_args->IsSet("hive-file")) {
	this->OpenHive(this->p_args->GetArgVal("hive-file"));
	}
	}

	MainWindow::~MainWindow() {
	if(this->is_hive_open) {
	this->p_hive->Close();
	}

	// Delete created objects
	delete this->p_reports;
	this->ClearRecentlyOpenedMenu();
	delete this->p_recently_opened_menu;
	delete this->p_hex_edit_widget;
	delete this->p_tab_widget;
	delete this->p_key_table;
	delete this->p_vertical_splitter;
	delete this->p_node_tree;
	delete this->p_horizontal_splitter;
	delete this->p_settings;
	delete this->p_hive;
	delete ui;
	}

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

	void MainWindow::closeEvent(QCloseEvent *p_event) {
	Q_UNUSED(p_event)

	// Save window position and size on exit
	this->p_settings->SetWindowGeometry("MainWindow",this->saveGeometry());
	QMainWindow::closeEvent(p_event);
	}

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

	void MainWindow::on_action_Open_hive_triggered() {
	QString hive_file="";

	hive_file=QFileDialog::getOpenFileName(this,
	tr("Open registry hive"),
	this->p_settings->GetLastOpenLocation(),
	tr("All files (*)"));
	if(hive_file=="") return;

	this->OpenHive(hive_file);
	}

	void MainWindow::on_action_Close_hive_triggered() {
	if(this->is_hive_open) {
	// Remove search results
	while(this->p_tab_widget->count()>1) {
	this->p_tab_widget->removeTab(this->p_tab_widget->count()-1);
	delete this->search_result_widgets.at(this->p_tab_widget->count()-1);
	this->search_result_widgets.removeLast();
	}

	// Delete models
	if(this->p_reg_node_tree_model!=NULL) {
	this->p_node_tree->setModel(NULL);
	delete this->p_reg_node_tree_model_proxy;
	delete this->p_reg_node_tree_model;
	this->p_reg_node_tree_model_proxy=NULL;
	this->p_reg_node_tree_model=NULL;
	}
	if(this->p_reg_key_table_model!=NULL) {
	this->p_key_table->setModel(NULL);
	delete this->p_reg_key_table_model;
	this->p_reg_key_table_model=NULL;
	}

	// Remove any data from hex edit and data interpreter
	this->p_hex_edit_widget->SetData(QByteArray());
	this->p_hex_edit_widget->setEnabled(false);

	// Close hive
	this->p_hive->Close();

	this->is_hive_open=false;
	this->is_hive_writable=!this->p_settings->GetOpenHivesReadOnly();
	this->UpdateWindowTitle();
	this->UpdateMenuStates();
	this->UpdateEnableWriteSupportMenu();
	}
	}

	void MainWindow::on_action_Quit_triggered() {
	qApp->exit();
	}

	void MainWindow::on_ActionSearch_triggered() {
	DlgSearch dlg_search(this);
	if(dlg_search.exec()==QDialog::Accepted) {
	// Create search thread and connect needed signals/slots
	this->p_search_thread=new ThreadSearch(this);

	// Add new search widget to tabwidget and to internal widget list
	SearchResultWidget *p_search_widget=
	new SearchResultWidget(this->p_tab_widget);
	p_search_widget->setEnabled(false);
	this->search_result_widgets.append(p_search_widget);

	this->connect(p_search_widget,
	SIGNAL(doubleClicked(QModelIndex)),
	this,
	SLOT(SlotSearchResultWidgetDoubleClicked(QModelIndex)));

	this->p_tab_widget->addTab(p_search_widget,tr("Search results"),true);
	this->p_tab_widget->setCurrentIndex(this->p_tab_widget->count()-1);

	// Connect search thread to result widget
	this->connect(this->p_search_thread,
	SIGNAL(SignalFoundMatch(ThreadSearch::eMatchType,
	QString,QString,QString)),
	p_search_widget,
	SLOT(SlotFoundMatch(ThreadSearch::eMatchType,
	QString,QString,QString)));
	this->connect(this->p_search_thread,
	SIGNAL(finished()),
	this,
	SLOT(SlotSearchFinished()));
	this->connect(this->p_search_thread,
	SIGNAL(finished()),
	p_search_widget,
	SLOT(SlotSearchFinished()));

	// Start searching
	this->ui->ActionSearch->setEnabled(false);
	p_search_thread->Search(this->p_hive->Filename(),
	dlg_search.Keywords(),
	dlg_search.SearchNodeNames(),
	dlg_search.SearchKeyNames(),
	dlg_search.SearchKeyValues());
	}
	}

	void MainWindow::on_ActionEnableWriteSupport_triggered() {
	if(this->is_hive_writable && this->p_hive->HasChangesToCommit()) {
	// There are unsaved changes, ask user if we should commit them
	if(QMessageBox::warning(this,
	tr("Save changes"),
	tr("You have unsaved changes! Do you want to save them before switching to read-only mode?"),
	QMessageBox::Yes,
	QMessageBox::No)==QMessageBox::Yes)
	{
	if(!this->p_hive->CommitChanges()) {
	QMessageBox::critical(this,
	tr("Saving changes"),
	tr("Unable to save changes!"));
	}
	}
	}
	this->is_hive_writable=!this->is_hive_writable;
	this->UpdateEnableWriteSupportMenu();
	this->p_node_tree->SetWritable(this->is_hive_writable);
	this->p_key_table->SetWritable(this->is_hive_writable);
	this->UpdateWindowTitle(this->p_hive->Filename());
	}

	void MainWindow::on_ActionPreferences_triggered() {
	DlgPreferences dlg_preferences(this->p_settings,this);
	dlg_preferences.exec();
	// Update vars, objects and GUI elements which might be affected by the new
	// settings
	this->UpdateRecentlyOpenedMenu();
	this->is_hive_writable=!this->p_settings->GetOpenHivesReadOnly();
	this->UpdateEnableWriteSupportMenu();
	this->p_reports->LoadReportTemplates();
	}

	void MainWindow::on_ActionGenerateReport_triggered() {
	DlgReportChooser dlg_repchooser(this->p_reports,
	this->p_hive->HiveTypeToString(
	this->p_hive->HiveType()),
	this->p_settings,
	this);
	if(dlg_repchooser.exec()==QDialog::Accepted) {
	QList<ReportTemplate*> selected_reports;

	// Get selected report
	selected_reports=dlg_repchooser.GetSelectedReports();
	if(selected_reports.isEmpty()) return;

	// Generate report(s)
	QString report_result="";
	if(this->p_reports->GenerateReport(this->p_hive,
	selected_reports,
	report_result,
	false))
	{
	// Report generation was successfull, show reports
	DlgReportViewer *p_dlg_report_view=new DlgReportViewer(report_result,
	this->p_settings,
	this);
	p_dlg_report_view->exec();
	delete p_dlg_report_view;
	} else {
	// TODO: Inform user
	qDebug()<<"ERROR: "<<report_result;
	}
	}
	}

	void MainWindow::on_ActionReloadReportTemplates_triggered() {
	this->p_reports->LoadReportTemplates();
	}

	void MainWindow::on_actionAbout_Qt_triggered() {
	QMessageBox::aboutQt(this,tr("About Qt"));
	}

	void MainWindow::on_actionAbout_fred_triggered() {
	DlgAbout dlg_about(this);
	dlg_about.exec();
	}

	void MainWindow::SlotNodeTreeClicked(QModelIndex index) {
	QString node_path;

	if(!index.isValid()) return;

	// Map proxy index to tree model index
	index=this->p_reg_node_tree_model_proxy->mapToSource(index);

	// Built node path
	node_path=this->p_reg_node_tree_model->GetNodePath(index);

	// Create table model and attach it to the table view
	if(this->p_reg_key_table_model!=NULL) {
	// If a previous model was set, delete it and clear hexedit etc...
	this->p_key_table->setModel(NULL);
	delete this->p_reg_key_table_model;
	this->p_hex_edit_widget->SetData(QByteArray());
	}
	this->p_reg_key_table_model=new RegistryKeyTableModel(this->p_hive,node_path);
	this->p_key_table->setModel(this->p_reg_key_table_model,
	this->is_hive_writable);
	// Set focus back to nodetree to be able to navigate with keyboard
	this->p_node_tree->setFocus();
	}

	void MainWindow::SlotKeyTableClicked(QModelIndex index) {
	if(!index.isValid()) return;

	this->selected_key_value=
	this->p_reg_key_table_model->data(this->p_reg_key_table_model->
	index(index.row(),2),
	RegistryKeyTableModel::
	AdditionalRoles_GetRawData)
	.toByteArray();
	this->p_hex_edit_widget->SetData(this->selected_key_value);
	// Set focus back to nodetree to be able to navigate with keyboard
	this->p_key_table->setFocus();
	}

	void MainWindow::SlotKeyTableDoubleClicked(QModelIndex index) {
	Q_UNUSED(index);
	/*
	QModelIndex key_index;
	QModelIndex node_index;
	QStringList nodes;

	QString key_name;
	QString key_type;
	QByteArray key_value;

	if(!index.isValid()) return;

	// Get key name, type and value
	key_index=this->p_reg_key_table_model->index(index.row(),0);
	key_name=this->p_reg_key_table_model->data(key_index,Qt::DisplayRole)
	.toString();
	key_index=this->p_reg_key_table_model->index(index.row(),1);
	key_type=this->p_reg_key_table_model->data(key_index,Qt::DisplayRole)
	.toString();ThreadSearch
	key_index=this->p_reg_key_table_model->index(index.row(),2);
	key_value=this->p_reg_key_table_model->data(key_index,
	RegistryKeyTableModel::
	AdditionalRoles_GetRawData)
	.toByteArray();

	// Get current node
	node_index=this->p_node_tree->currentIndex();

	//Built node path
	nodes.clear();
	nodes.append(this->p_reg_node_tree_model->
	data(node_index,Qt::DisplayRole).toString());
	while(this->p_reg_node_tree_model->parent(node_index)!=QModelIndex()) {
	// Prepend all parent nodes
	node_index=this->p_reg_node_tree_model->parent(node_index);
	nodes.prepend(this->p_reg_node_tree_model->
	data(node_index,Qt::DisplayRole).toString());
	}

	DlgKeyDetails dlg_key_details(this);
	dlg_key_details.SetValues(nodes,key_name,key_type,key_value);
	dlg_key_details.exec();
	*/
	}

	void MainWindow::SlotSearchFinished() {
	delete this->p_search_thread;
	this->p_search_thread=NULL;
	this->ui->ActionSearch->setEnabled(true);
	// Enable result widget
	this->search_result_widgets.last()->setEnabled(true);
	}

	void MainWindow::SlotSearchResultWidgetDoubleClicked(QModelIndex index) {
	SearchResultWidget *p_sender;
	QString path;
	QString match_type;
	QString value;
	QString key="";
	int i;

	if(!index.isValid()) return;

	// Get pointer to sender
	p_sender=(SearchResultWidget*)QObject::sender();

	// Get path and matchtype
	path=p_sender->item(index.row(),0)->text();
	match_type=p_sender->item(index.row(),1)->text();
	value=p_sender->item(index.row(),2)->text();

	if(match_type==tr("Node name")) {
	// Node name is not part of path. Add it
	if(path=="\\") path.append(value);
	else path.append("\\").append(value);
	} else if(match_type==tr("Key name")) {
	// Key name is stored in value
	key=value;
	} else if(match_type==tr("Key value")) {
	// Key name is part of path. Save and remove it
	QStringList nodes=path.split("\\",QString::SkipEmptyParts);
	key=nodes.at(nodes.count()-1);
	// Remove \<key name> from path
	path.chop(key.length()+1);
	}

	// Expand treeview to correct node
	QList<QModelIndex> indexes=
	this->p_reg_node_tree_model->GetIndexListOf(path);
	for(i=0;i<indexes.count();i++) {
	indexes.replace(i,this->p_reg_node_tree_model_proxy->
	mapFromSource(indexes.at(i)));
	this->p_node_tree->expand(indexes.at(i));
	}
	if(indexes.count()>0) {
	// Scroll to last expanded node, select it and update widgets
	this->p_node_tree->scrollTo(indexes.at(indexes.count()-1),
	QAbstractItemView::PositionAtCenter);
	this->p_node_tree->selectionModel()->clear();
	this->p_node_tree->selectionModel()->
	select(indexes.at(indexes.count()-1),
	- QItemSelectionModel::Select);
	+ QItemSelectionModel::ClearAndSelect \|
	+ QItemSelectionModel::Rows \|
	+ QItemSelectionModel::Current);
	// TODO: This does not work!!
	this->SlotNodeTreeClicked(indexes.at(indexes.count()-1));
	}

	// Select correct key if search matched on keay name / value
	if(key!="") {
	int row=this->p_reg_key_table_model->GetKeyRow(key);
	this->p_key_table->clearSelection();
	this->p_key_table->scrollTo(this->p_reg_key_table_model->index(row,0),
	QAbstractItemView::PositionAtCenter);
	this->p_key_table->selectRow(row);
	this->SlotKeyTableClicked(this->p_reg_key_table_model->index(row,0));
	}
	}

	void MainWindow::SlotTabCloseButtonClicked(int index) {
	// Delete tab widget and remove tab
	this->p_tab_widget->removeTab(index);
	delete this->search_result_widgets.at(index-1);
	this->search_result_widgets.removeAt(index-1);
	}

	void MainWindow::SlotRecentlyOpenedFileClicked(bool checked) {
	Q_UNUSED(checked)

	QAction p_sender=(QAction)QObject::sender();
	this->OpenHive(p_sender->text());
	}

	void MainWindow::SlotAddNode(QModelIndex index) {
	QString node_path;
	+ int new_node_id;

	if(!index.isValid()) return;

	// Map proxy index to tree model index and get node path
	index=this->p_reg_node_tree_model_proxy->mapToSource(index);
	node_path=this->p_reg_node_tree_model->GetNodePath(index);

	// Query user for a node name
	bool ok=false;
	QString node_name=QInputDialog::getText(this,
	tr("Add node"),
	tr("Please specify a name for the new node"),
	QLineEdit::Normal,
	QString(),
	&ok);
	if(ok) {
	- if(!this->p_hive->AddNode(node_path,node_name)) {
	+ if((new_node_id=this->p_hive->AddNode(node_path,node_name))==0) {
	+ // TODO: Get error message and display it
	QMessageBox::critical(this,
	tr("Error"),
	tr("Unable to create node '%1\\%2'!")
	.arg(node_path,node_name));
	} else {
	- this->p_reg_node_tree_model->ReloadModelData();
	- // TODO: Reload / add new node in node tree
	+ // Add node to model. We have to pass node_name as Ascii as utf8 names are
	+ // not supported inside hives!
	+ QModelIndex new_node_index=
	+ this->p_reg_node_tree_model->AddNode(index,
	+ new_node_id,
	+ node_name.toAscii());
	+ // Now that node has been added, expand parent and select new node
	+ this->p_node_tree->expand(
	+ this->p_reg_node_tree_model_proxy->mapFromSource(index));
	+ new_node_index=
	+ this->p_reg_node_tree_model_proxy->mapFromSource(new_node_index);
	+ this->p_node_tree->scrollTo(new_node_index,
	+ QAbstractItemView::PositionAtCenter);
	+ this->p_node_tree->selectionModel()->clear();
	+ this->p_node_tree->selectionModel()->
	+ select(new_node_index,
	+ QItemSelectionModel::ClearAndSelect \|
	+ QItemSelectionModel::Rows \|
	+ QItemSelectionModel::Current);
	+ // And finally update key table
	+ this->SlotNodeTreeClicked(new_node_index);
	}
	}
	}

	void MainWindow::SlotDeleteNode(QModelIndex index) {
	// TODO
	}

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

	void MainWindow::OpenHive(QString hive_file) {
	// Update last open location
	this->p_settings->SetLastOpenLocation(
	hive_file.left(hive_file.lastIndexOf(QDir::separator())));

	// If another hive is currently open, close it
	if(this->is_hive_open) this->on_action_Close_hive_triggered();

	// Try to open hive
	if(!this->p_hive->Open(hive_file,!this->is_hive_writable)) {
	QMessageBox::critical(this,
	tr("Error opening hive file"),
	tr("Unable to open file '%1'").arg(hive_file));
	return;
	}

	// Create tree model & proxy
	this->p_reg_node_tree_model=new RegistryNodeTreeModel(this->p_hive);
	this->p_reg_node_tree_model_proxy=new RegistryNodeTreeModelProxy(this);
	//this->p_reg_node_tree_model_proxy->setDynamicSortFilter(true);
	this->p_reg_node_tree_model_proxy->
	setSourceModel(this->p_reg_node_tree_model);
	this->p_node_tree->setModel(this->p_reg_node_tree_model_proxy,
	this->is_hive_writable);

	this->is_hive_open=true;

	// Enable data interpreter
	this->p_hex_edit_widget->setEnabled(true);

	// Update window title
	this->UpdateWindowTitle(hive_file);

	// Update menu states
	this->UpdateMenuStates();

	// Add file to recent list and update recently opened menu
	this->p_settings->AddRecentFile(hive_file);
	this->UpdateRecentlyOpenedMenu();
	}

	void MainWindow::UpdateWindowTitle(QString filename) {
	if(filename=="") {
	this->setWindowTitle(QString("%1 v%2").arg(APP_TITLE,APP_VERSION));
	} else {
	this->setWindowTitle(QString("%1 v%2 - %3").arg(APP_TITLE,
	APP_VERSION,
	filename.toLocal8Bit()
	.constData()));
	if(!this->is_hive_writable) {
	this->setWindowTitle(this->windowTitle().append(QString(" (%1)")
	.arg(tr("read-only"))));
	}
	}
	}

	void MainWindow::UpdateMenuStates() {
	if(this->is_hive_open) {
	this->ui->action_Close_hive->setEnabled(true);
	this->ui->ActionEnableWriteSupport->setEnabled(true);
	this->ui->ActionSearch->setEnabled(true);
	this->ui->ActionEnableWriteSupport->setEnabled(true);
	this->ui->ActionGenerateReport->setEnabled(true);
	this->ui->ActionReloadReportTemplates->setEnabled(true);
	} else {
	this->ui->action_Close_hive->setEnabled(false);
	this->ui->ActionEnableWriteSupport->setEnabled(false);
	this->ui->ActionSearch->setEnabled(false);
	this->ui->ActionEnableWriteSupport->setEnabled(false);
	this->ui->ActionGenerateReport->setEnabled(false);
	this->ui->ActionReloadReportTemplates->setEnabled(false);
	}
	}

	void MainWindow::ClearRecentlyOpenedMenu() {
	QAction *p_action;

	// Remove existing menu entries
	QList<QAction*> menu_entries=this->p_recently_opened_menu->actions();
	QListIterator<QAction*> it_me(menu_entries);
	while(it_me.hasNext()) {
	p_action=it_me.next();
	this->p_recently_opened_menu->removeAction(p_action);
	delete p_action;
	}
	}

	void MainWindow::UpdateRecentlyOpenedMenu() {
	QStringList recent_files=this->p_settings->GetRecentFiles();
	QAction *p_action;

	// Remove existing menu entries
	this->ClearRecentlyOpenedMenu();

	// If there are no recent files, disable submenu and return
	if(recent_files.isEmpty()) {
	this->ui->ActionRecentlyOpened->setEnabled(false);
	return;
	} else {
	this->ui->ActionRecentlyOpened->setEnabled(true);
	}

	// Add recently opened files to menu
	QListIterator<QString> it_rf(recent_files);
	while(it_rf.hasNext()) {
	// Create menu entry
	p_action=new QAction(it_rf.next(),this->p_recently_opened_menu);
	// Connect it to us
	this->connect(p_action,
	SIGNAL(triggered(bool)),
	this,
	SLOT(SlotRecentlyOpenedFileClicked(bool)));
	// Add it to submenu
	this->p_recently_opened_menu->addAction(p_action);
	}
	}

	void MainWindow::UpdateEnableWriteSupportMenu() {
	if(!this->is_hive_writable) {
	this->ui->ActionEnableWriteSupport->setText(tr("Enable &write support"));
	this->p_node_tree->SetWritable(false);
	this->p_key_table->SetWritable(false);
	} else {
	this->ui->ActionEnableWriteSupport->setText(tr("Disable &write support"));
	this->p_node_tree->SetWritable(true);
	this->p_key_table->SetWritable(true);
	}
	}
	diff --git a/trunk/registryhive.cpp b/trunk/registryhive.cpp
	index 6950b7d..cb6d36e 100644
	--- a/trunk/registryhive.cpp
	+++ b/trunk/registryhive.cpp
	@@ -1,849 +1,849 @@
	/*******************************************************************************
	* 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);
	}

	/*
	* 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)
	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
	ret=QString().sprintf("0x%08X",(uint32_t)value.constData());
	break;
	case hive_t_REG_DWORD_BIG_ENDIAN:
	// DWORD (32 bit integer), big endian
	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
	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.
	ret=
	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!
	#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) {
	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;
	}

	/*
	* KeyTypeToString
	*/
	QString RegistryHive::KeyTypeToString(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;
	}

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

	/*
	* AddNode
	*/
	-bool RegistryHive::AddNode(QString parent_node_path, QString node_name) {
	- if(!this->is_hive_writable) return false;
	+int RegistryHive::AddNode(QString parent_node_path, QString node_name) {
	+ if(!this->is_hive_writable) 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)) {
	// TODO: Set error
	- return false;
	+ 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())) {
	// TODO: Set error
	- return false;
	+ 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) {
	// TODO: Set error
	- return false;
	+ return 0;
	}

	this->has_changes_to_commit=true;
	- return 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)) {
	// TODO: Set error
	return false;
	}

	// Delete node
	if(hivex_node_delete_child(this->p_hive,node)==-1) {
	// TODO: Set error
	return false;
	}

	this->has_changes_to_commit=true;
	return true;
	}

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

	/*
	* 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++) {
	// printf("Spotting node '%s'\n",nodes.value(i).toAscii().constData());
	*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;
	}

	/*
	* 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;
	}
	diff --git a/trunk/registryhive.h b/trunk/registryhive.h
	index d0ab759..d2a73fc 100644
	--- a/trunk/registryhive.h
	+++ b/trunk/registryhive.h
	@@ -1,104 +1,104 @@
	/*******************************************************************************
	* 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 REGISTRYHIVE_H
	#define REGISTRYHIVE_H

	#include <QObject>
	#include <QMap>

	#include <hivex.h>

	class RegistryHive : public QObject {
	Q_OBJECT

	public:
	typedef enum eHiveType {
	eHiveType_UNKNOWN=0,
	eHiveType_SYSTEM,
	eHiveType_SOFTWARE,
	eHiveType_SAM,
	eHiveType_SECURITY,
	eHiveType_NTUSER
	} teHiveType;

	explicit RegistryHive(QObject *p_parent=0);
	~RegistryHive();

	bool Error();
	QString GetErrorMsg();

	bool Open(QString file, bool read_only=true);
	bool Reopen(bool read_only=true);
	bool CommitChanges();
	bool Close();

	QString Filename();
	teHiveType HiveType();
	QString HiveTypeToString(teHiveType hive_type);
	bool HasChangesToCommit();

	QMap<QString,int> GetNodes(QString path="\\");
	QMap<QString,int> GetNodes(int parent_node=0);
	QMap<QString,int> GetKeys(QString path="\\");
	QMap<QString,int> GetKeys(int parent_node=0);
	QByteArray GetKeyValue(QString path,
	QString key,
	int *p_value_type,
	size_t *p_value_len);
	QByteArray GetKeyValue(int hive_key,
	int *p_value_type,
	size_t *p_value_len);
	int64_t GetNodeModTime(QString path);
	int64_t GetNodeModTime(int node);
	static QString KeyValueToString(QByteArray value, int value_type);
	static QString KeyValueToString(QByteArray value,
	QString format,
	int offset=0,
	int length=0,
	bool little_endian=true);
	static QStringList KeyValueToStringList(QByteArray value, int value_type);
	static QString KeyTypeToString(int value_type);
	static uint64_t FiletimeToUnixtime(int64_t filetime);

	- bool AddNode(QString parent_node_path, QString node_name);
	+ int AddNode(QString parent_node_path, QString node_name);
	bool DeleteNode(QString node_path);

	private:
	QString erro_msg;
	bool is_error;
	QString hive_file;
	hive_h *p_hive;
	bool is_hive_open;
	bool is_hive_writable;
	bool has_changes_to_commit;

	void SetError(QString msg);
	bool GetNodeHandle(QString &path, hive_node_h *p_node);
	QMap<QString,int> GetNodesHelper(hive_node_h parent_node);
	QMap<QString,int> GetKeysHelper(hive_node_h parent_node);
	QByteArray GetKeyValueHelper(hive_value_h hive_key,
	int *p_value_type,
	size_t *p_value_len);
	bool PathExists(QString path);

	};

	#endif // REGISTRYHIVE_H
	diff --git a/trunk/registrynodetreemodel.cpp b/trunk/registrynodetreemodel.cpp
	index 954774c..360c3cf 100644
	--- a/trunk/registrynodetreemodel.cpp
	+++ b/trunk/registrynodetreemodel.cpp
	@@ -1,253 +1,268 @@
	/*******************************************************************************
	* 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_reghive,
	+RegistryNodeTreeModel::RegistryNodeTreeModel(RegistryHive *p_hive,
	QObject *p_parent)
	: QAbstractItemModel(p_parent)
	{
	- // Init private vars
	- this->p_root_node=NULL;
	- this->p_hive=p_reghive;
	+ // 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"));

	- // Build node list
	- this->ReloadModelData();
	+ // 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 {
	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 path;

	// 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;
	}

	-void RegistryNodeTreeModel::ReloadModelData() {
	- // Delete current values if data was already loaded once
	- if(this->p_root_node!=NULL) delete this->p_root_node;
	+QModelIndex RegistryNodeTreeModel::AddNode(const QModelIndex &parent_index,
	+ int new_node_id,
	+ QString new_node_name)
	+{
	+ RegistryNode *p_parent_node;
	+ int64_t key_mod_time;
	+ RegistryNode *p_node;
	+
	+ // Get pointer to parent node
	+ p_parent_node=static_cast<RegistryNode*>(parent_index.internalPointer());

	- // 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"));
	+ // 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()));

	- // Load data
	- this->SetupModelData(this->p_hive,this->p_root_node);
	+ // 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());

	- // TODO: Maybe emit signal that data has changed
	- //emit(RegistryNodeTreeModel::dataChanged())
	+ // Return index to new node
	+ return this->createIndex(p_parent_node->ChildCount()-1,0,p_node);
	}

	/*******************************************************************************
	* 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());
	}
	}
	diff --git a/trunk/registrynodetreemodel.h b/trunk/registrynodetreemodel.h
	index ececa60..03dc1f2 100644
	--- a/trunk/registrynodetreemodel.h
	+++ b/trunk/registrynodetreemodel.h
	@@ -1,68 +1,70 @@
	/*******************************************************************************
	* 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:
	- RegistryNodeTreeModel(RegistryHive p_reghive, QObject p_parent=0);
	+ 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;
	- void ReloadModelData();
	+ QModelIndex AddNode(const QModelIndex &parent_index,
	+ int new_node_id,
	+ QString new_node_name);

	private:
	enum ColumnContent {
	ColumnContent_NodeName=0,
	ColumnContent_NodeModTime
	};

	RegistryHive *p_hive;
	RegistryNode *p_root_node;

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

	#endif // REGISTRYNODETREEMODEL_H

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