diff --git a/.gitignore b/.gitignore
index f147edf..fab7372 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,52 +1,73 @@
-# C++ objects and libs
-*.slo
-*.lo
-*.o
+# This file is used to ignore files which are generated
+# ----------------------------------------------------------------------------
+
+*~
+*.autosave
 *.a
-*.la
-*.lai
+*.core
+*.moc
+*.o
+*.obj
+*.orig
+*.rej
 *.so
 *.so.*
-*.dll
-*.dylib
-
-# Qt-es
-object_script.*.Release
-object_script.*.Debug
-*_plugin_import.cpp
+*_pch.h.cpp
+*_resource.rc
+*.qm
+.#*
+*.*#
+core
+!core/
+tags
+.DS_Store
+.directory
+*.debug
+Makefile*
+*.prl
+*.app
+moc_*.cpp
+ui_*.h
+qrc_*.cpp
+Thumbs.db
+*.res
+*.rc
 /.qmake.cache
 /.qmake.stash
-*.pro.user
-*.pro.user.*
-*.qbs.user
-*.qbs.user.*
-*.moc
-moc_*.cpp
-moc_*.h
-qrc_*.cpp
-ui_*.h
-*.qmlc
-*.jsc
-Makefile*
-*build-*
-*.qm
-*.prl
 
-# Qt unit tests
-target_wrapper.*
+# qtcreator generated files
+*.pro.user*
 
-# QtCreator
-*.autosave
+# xemacs temporary files
+*.flc
 
-# QtCreator Qml
-*.qmlproject.user
-*.qmlproject.user.*
+# Vim temporary files
+.*.swp
 
-# QtCreator CMake
-CMakeLists.txt.user*
+# Visual Studio generated files
+*.ib_pdb_index
+*.idb
+*.ilk
+*.pdb
+*.sln
+*.suo
+*.vcproj
+*vcproj.*.*.user
+*.ncb
+*.sdf
+*.opensdf
+*.vcxproj
+*vcxproj.*
 
-# QtCreator 4.8< compilation database 
-compile_commands.json
+# MinGW generated files
+*.Debug
+*.Release
+
+# Python byte code
+*.pyc
+
+# Binaries
+# --------
+*.dll
+*.exe
 
-# QtCreator local machine specific files for imported projects
-*creator.user*
diff --git a/cdatabase.cpp b/cdatabase.cpp
new file mode 100644
index 0000000..4143ebe
--- /dev/null
+++ b/cdatabase.cpp
@@ -0,0 +1,181 @@
+#include "common.h"
+#include "cdatabase.h"
+
+#include <QSettings>
+
+#include <QDebug>
+
+
+cDatabase::cDatabase()
+{
+	QSettings	settings;
+
+	m_databaseType	= settings.value("database/databasetype", "").toString();
+	m_hostName		= settings.value("database/hostname", "").toString();
+	m_port			= settings.value("database/port", "").toInt();
+	m_databaseName	= settings.value("database/databaseName").toString();
+	m_userName		= settings.value("database/username", "").toString();
+	m_password		= settings.value("database/password").toString();
+
+	addTranslate("AUTOINCREMENT", "QMYSQL", "AUTO_INCREMENT");
+	addTranslate("AUTOINCREMENT", "QSQLITE", "AUTOINCREMENT");
+}
+
+cDatabase::~cDatabase()
+{
+	if(m_db.isOpen())
+		m_db.close();
+}
+
+void cDatabase::addTranslate(const QString& sql, const QString& dbType, const QString& translated)
+{
+	SQLTRANSLATE	st = { sql, dbType, translated };
+	m_sqlTranslate.append(st);
+}
+
+QString cDatabase::translate(const QString& sql, const QString& dbType)
+{
+	for(QList<SQLTRANSLATE>::iterator st = m_sqlTranslate.begin();st != m_sqlTranslate.end();st++)
+	{
+		if(st->sql == sql && st->dbType == dbType)
+			return(st->translated);
+	}
+	return(sql);
+}
+
+bool cDatabase::connect()
+{
+	m_db	= QSqlDatabase::addDatabase(m_databaseType);
+	m_db.setHostName(m_hostName);
+	m_db.setPort(m_port);
+	m_db.setDatabaseName(m_databaseName);
+	m_db.setUserName(m_userName);
+	m_db.setPassword(m_password);
+
+	if(!m_db.open())
+	{
+		myDebug << m_db.lastError().text();
+		return(false);
+	}
+
+	if(!checkDB())
+	{
+		myDebug << m_db.lastError().text();
+		return(false);
+	}
+
+	return(true);
+}
+
+QSqlDatabase cDatabase::db()
+{
+	return(m_db);
+}
+
+bool cDatabase::checkDB()
+{
+	QSqlQuery	query(m_db);
+	if(!query.exec("SELECT version FROM config;"))
+	{
+		if(!createTables())
+		return(false);
+
+		if(!query.exec("SELECT version FROM config;"))
+			return(false);
+	}
+
+	query.first();
+	QString	version	= query.value("version").toString();
+	if(version.compare(APP_VERSION))
+	{
+		if(!upgradeDB(APP_VERSION))
+			return(false);
+	}
+
+	return(true);
+}
+
+bool cDatabase::createTables()
+{
+	QSqlQuery	query(m_db);
+
+	// CONFIG
+	if(!query.exec("CREATE TABLE config "
+				   "( version VARCHAR(32) NOT NULL "
+				   ");"))
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	if(!query.exec(QString("INSERT INTO config (version) VALUES ('%1');").arg(APP_VERSION)))
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	// MANUFACTURER
+	if(!query.exec(QString("CREATE TABLE manufacturer "
+						   "( id                  INTEGER PRIMARY KEY %1, "
+						   "  name                VARCHAR(255) NOT NULL, "
+						   "  address             VARCHAR(2000), "
+						   "  url                 VARCHAR(255), "
+						   "  email               VARCHAR(255), "
+						   "  phone               VARCHAR(255), "
+						   "  fax                 VARCHAR(255), "
+						   "  comment             VARCHAR(2000) "
+						   ");").arg(translate("AUTOINCREMENT", m_databaseType))))
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	// DISTRIBUTOR
+	if(!query.exec(QString("CREATE TABLE distributor "
+						   "( id                  INTEGER PRIMARY KEY %1, "
+						   "  name                VARCHAR(255) NOT NULL, "
+						   "  address             VARCHAR(2000), "
+						   "  url                 VARCHAR(255), "
+						   "  email               VARCHAR(255), "
+						   "  phone               VARCHAR(255), "
+						   "  fax                 VARCHAR(255), "
+						   "  comment             VARCHAR(2000) "
+						   ");").arg(translate("AUTOINCREMENT", m_databaseType))))
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	// STORAGE_CATEGORY
+	if(!query.exec(QString("CREATE TABLE storage_category "
+						   "( id                  INTEGER PRIMARY KEY %1, "
+						   "  parent              INTEGER, "
+						   "  name                VARCHAR(255) NOT NULL, "
+						   "  description         VARCHAR(2000), "
+						   "  CONSTRAINT          FK_storage_category_id FOREIGN KEY (parent) REFERENCES storage_category(id) "
+						   ");").arg(translate("AUTOINCREMENT", m_databaseType))))
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	// STORAGE
+	if(!query.exec(QString("CREATE TABLE storage "
+						   "( id                  INTEGER PRIMARY KEY %1, "
+						   "  storage_category_id INTEGER, "
+						   "  name                VARCHAR(255) NOT NULL, "
+						   "  description         VARCHAR(2000), "
+						   "  CONSTRAINT          FK_storage_storage_category_id FOREIGN KEY (storage_category_id) REFERENCES storage_category(id) "
+						   ");").arg(translate("AUTOINCREMENT", m_databaseType))))
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	return(true);
+}
+
+bool cDatabase::upgradeDB(const QString& /*version*/)
+{
+	return(true);
+}
diff --git a/cdatabase.h b/cdatabase.h
new file mode 100644
index 0000000..8ccbb13
--- /dev/null
+++ b/cdatabase.h
@@ -0,0 +1,47 @@
+#ifndef CDATABASE_H
+#define CDATABASE_H
+
+
+#include <QSqlDatabase>
+#include <QSqlQuery>
+#include <QSqlError>
+#include <QList>
+
+
+typedef struct tagSQLTRANSLATE
+{
+	QString		sql;
+	QString		dbType;
+	QString		translated;
+} SQLTRANSLATE;
+
+
+class cDatabase
+{
+public:
+	cDatabase();
+	~cDatabase();
+
+	bool				connect();
+
+	QSqlDatabase		db();
+private:
+	QString				m_databaseType;
+	QString				m_hostName;
+	qint16				m_port;
+	QString				m_databaseName;
+	QString				m_userName;
+	QString				m_password;
+	QSqlDatabase		m_db;
+
+	QList<SQLTRANSLATE>	m_sqlTranslate;
+
+	void				addTranslate(const QString& sql, const QString& dbType, const QString& translated);
+	QString				translate(const QString& sql, const QString& dbType);
+
+	bool				checkDB();
+	bool				createTables();
+	bool				upgradeDB(const QString& version);
+};
+
+#endif // CDATABASE_H
diff --git a/cdistributor.cpp b/cdistributor.cpp
new file mode 100644
index 0000000..b50fc9e
--- /dev/null
+++ b/cdistributor.cpp
@@ -0,0 +1,364 @@
+#include "cdistributor.h"
+
+#include <QSqlQuery>
+#include <QSqlError>
+
+#include <QStandardItem>
+
+#include "common.h"
+
+
+cDistributor::cDistributor(cDatabase* db, qint32 id, QObject* parent) :
+	QObject(parent),
+	m_db(db),
+	m_changed(false),
+	m_id(id),
+	m_name(""),
+	m_address(""),
+	m_url(""),
+	m_email(""),
+	m_comment(""),
+	m_phone(""),
+	m_fax(""),
+	m_item(nullptr)
+{
+}
+
+cDistributor::cDistributor(cDistributor* distributor)
+{
+	set(distributor);
+}
+
+void cDistributor::set(cDistributor* distributor)
+{
+	m_db		= distributor->db();
+	m_id		= distributor->id();
+	m_name		= distributor->name();
+	m_address	= distributor->address();
+	m_url		= distributor->url();
+	m_email		= distributor->email();
+	m_comment	= distributor->comment();
+	m_phone		= distributor->phone();
+	m_fax		= distributor->fax();
+}
+
+void cDistributor::setID(const qint32& id)
+{
+	m_id		= id;
+	m_changed	= true;
+	emit idChanged(id);
+	emit distributorChanged(this);
+}
+
+qint32 cDistributor::id()
+{
+	return(m_id);
+}
+
+void cDistributor::setName(const QString& name)
+{
+	m_name		= name;
+	m_changed	= true;
+	emit nameChanged(name);
+	emit distributorChanged(this);
+}
+
+QString cDistributor::name()
+{
+	return(m_name);
+}
+
+void cDistributor::setAddress(const QString& address)
+{
+	m_address	= address;
+	emit addressChanged(address);
+	emit distributorChanged(this);
+}
+
+QString cDistributor::address()
+{
+	return(m_address);
+}
+
+void cDistributor::setURL(const QString& url)
+{
+	m_url		= url;
+	m_changed	= true;
+	emit urlChanged(url);
+	emit distributorChanged(this);
+}
+
+QString cDistributor::url()
+{
+	return(m_url);
+}
+
+void cDistributor::setEmail(const QString& email)
+{
+	m_email		= email;
+	m_changed	= true;
+	emit emailChanged(email);
+	emit distributorChanged(this);
+}
+
+QString cDistributor::email()
+{
+	return(m_email);
+}
+
+void cDistributor::setComment(const QString& comment)
+{
+	m_comment	= comment;
+	emit commentChanged(comment);
+	emit distributorChanged(this);
+}
+
+QString cDistributor::comment()
+{
+	return(m_comment);
+}
+
+void cDistributor::setPhone(const QString& phone)
+{
+	m_phone		= phone;
+	m_changed	= true;
+	emit phoneChanged(phone);
+	emit distributorChanged(this);
+}
+
+QString cDistributor::phone()
+{
+	return(m_phone);
+}
+
+void cDistributor::setFax(const QString& fax)
+{
+	m_fax		= fax;
+	m_changed	= true;
+	emit faxChanged(fax);
+	emit distributorChanged(this);
+}
+
+QString cDistributor::fax()
+{
+	return(m_fax);
+}
+
+void cDistributor::setItem(QStandardItem* item)
+{
+	m_item		= item;
+}
+
+QStandardItem* cDistributor::item()
+{
+	return(m_item);
+}
+
+cDatabase* cDistributor::db()
+{
+    return(m_db);
+}
+
+bool cDistributor::save()
+{
+	if(!m_changed)
+		return(true);
+
+	QSqlQuery	query;
+
+	if(m_id == -1)
+		query.prepare("INSERT INTO distributor (name, address, url, email, comment, phone, fax) VALUES (:name, :address, :url, :email, :comment, :phone, :fax);");
+	else
+		query.prepare("UPDATE distributor SET name=:name, address=:address, url=:url, email=:email, comment=:comment, phone=:phone, fax=:fax WHERE id=:id;");
+
+	query.bindValue(":id", m_id);
+	query.bindValue(":name", m_name);
+	query.bindValue(":address", m_address);
+	query.bindValue(":url", m_url);
+	query.bindValue(":email", m_email);
+	query.bindValue(":comment", m_comment);
+	query.bindValue(":phone", m_phone);
+	query.bindValue(":fax", m_fax);
+
+	if(!query.exec())
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	if(m_id == -1)
+	{
+		if(!query.exec("SELECT MAX(id) MAXID FROM distributor;"))
+		{
+			myDebug << query.lastError().text();
+			return(false);
+		}
+
+		query.first();
+		m_id = query.value("MAXID").toInt();
+	}
+	m_changed	= false;
+	return(true);
+}
+
+bool cDistributor::remove()
+{
+	QSqlQuery	query;
+
+	query.prepare("DELETE FROM distributor WHERE id=:id;");
+	query.bindValue(":id", m_id);
+
+	if(!query.exec())
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	return(true);
+}
+
+void cDistributor::clearSave()
+{
+	m_changed	= false;
+}
+
+cDistributorList::cDistributorList(cDatabase* db, QObject* parent) :
+	QObject(parent),
+	m_db(db)
+{
+}
+
+bool cDistributorList::load()
+{
+	if(!m_db->db().isOpen())
+		return(false);
+
+	QString		sql	= QString("SELECT   id, "
+							  "         name, "
+							  "         address, "
+							  "         url, "
+							  "         email, "
+							  "         comment, "
+							  "         phone, "
+							  "         fax "
+							  "FROM     distributor "
+							  "ORDER BY name;");
+	QSqlQuery	query(m_db->db());
+
+	query.prepare(sql);
+
+	if(!query.exec())
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	while(query.next())
+	{
+		cDistributor*	lpDistributor	= add(query.value("id").toInt());
+		lpDistributor->setName(query.value("name").toString());
+		lpDistributor->setAddress(query.value("address").toString());
+		lpDistributor->setURL(query.value("url").toString());
+		lpDistributor->setEmail(query.value("email").toString());
+		lpDistributor->setComment(query.value("comment").toString());
+		lpDistributor->setPhone(query.value("phone").toString());
+		lpDistributor->setFax(query.value("fax").toString());
+	}
+
+	return(true);
+}
+
+cDistributor* cDistributorList::add(const qint32& id)
+{
+	cDistributor*	lpNew	= find(id);
+
+	if(!lpNew)
+	{
+		lpNew	= new cDistributor(m_db, id);
+		append(lpNew);
+		emit distributorAdded(lpNew);
+	}
+
+	return(lpNew);
+}
+
+cDistributor* cDistributorList::add(const QString& name)
+{
+	cDistributor*	lpNew	= new cDistributor(m_db);
+	lpNew->setName(name);
+	append(lpNew);
+	emit distributorAdded(lpNew);
+
+	return(lpNew);
+}
+
+bool cDistributorList::remove(const qint32& id)
+{
+	cDistributor*	manufacturer	= find(id);
+	if(!manufacturer)
+		return(false);
+
+	if(!manufacturer->remove())
+		return(false);
+
+	if(!removeOne(manufacturer))
+		return(false);
+
+	emit distributorRemoved(manufacturer);
+
+	return(true);
+}
+
+cDistributor* cDistributorList::find(const qint32& id)
+{
+	for(int i = 0;i < count();i++)
+	{
+		if(at(i)->id() == id)
+			return(at(i));
+	}
+
+	return(nullptr);
+}
+
+cDistributor* cDistributorList::find(const QString& name)
+{
+	for(int i = 0;i < count();i++)
+	{
+		if(at(i)->name() == name)
+			return(at(i));
+	}
+
+	return(nullptr);
+}
+
+bool cDistributorList::fillList(QStandardItemModel* model)
+{
+	model->clear();
+
+	if(!count())
+		return(true);
+
+	for(int i = 0;i < count();i++)
+	{
+		QStandardItem*	item	= new QStandardItem;
+		at(i)->setItem(item);
+		item->setText(at(i)->name());
+		item->setData(QVariant::fromValue(at(i)), ITEM_DISTRIBUTOR_DATA);
+		model->appendRow(item);
+	}
+
+	return(true);
+}
+
+bool cDistributorList::save()
+{
+	bool	ret	= true;
+
+	for(int i = 0;i < count();i++)
+	{
+		if(!at(i)->save())
+			ret	= false;
+	}
+
+	return(ret);
+}
diff --git a/cdistributor.h b/cdistributor.h
new file mode 100644
index 0000000..708cd57
--- /dev/null
+++ b/cdistributor.h
@@ -0,0 +1,108 @@
+#ifndef CDISTRIBUTOR_H
+#define CDISTRIBUTOR_H
+
+
+#include "cdatabase.h"
+
+#include <QMetaType>
+#include <QList>
+#include <QObject>
+
+#include <QStandardItem>
+#include <QStandardItemModel>
+
+
+class cDistributor : public QObject
+{
+	Q_OBJECT
+
+public:
+	explicit cDistributor(cDatabase* db, qint32 id = -1, QObject* parent = nullptr);
+	cDistributor(cDistributor* distributor);
+
+	void			set(cDistributor* distributor);
+
+	void			setID(const qint32& id);
+	qint32			id();
+
+	void			setName(const QString& name);
+	QString			name();
+
+	void			setAddress(const QString& address);
+	QString			address();
+
+	void			setURL(const QString& url);
+	QString			url();
+
+	void			setEmail(const QString& email);
+	QString			email();
+
+	void			setComment(const QString& comment);
+	QString			comment();
+
+	void			setPhone(const QString& phone);
+	QString			phone();
+
+	void			setFax(const QString& fax);
+	QString			fax();
+
+	void			setItem(QStandardItem* item);
+	QStandardItem*	item();
+
+	bool			save();
+	void			clearSave();
+	bool			remove();
+
+	cDatabase*		db();
+private:
+	cDatabase*		m_db;
+	bool			m_changed;
+	qint32			m_id;
+	QString			m_name;
+	QString			m_address;
+	QString			m_url;
+	QString			m_email;
+	QString			m_comment;
+	QString			m_phone;
+	QString			m_fax;
+	QStandardItem*	m_item;
+signals:
+	void			distributorChanged(cDistributor* distributor);
+	void			idChanged(const qint32& id);
+	void			nameChanged(const QString& name);
+	void			addressChanged(const QString& address);
+	void			urlChanged(const QString& url);
+	void			emailChanged(const QString& email);
+	void			commentChanged(const QString& comment);
+	void			phoneChanged(const QString& phone);
+	void			faxChanged(const QString& fax);
+};
+
+Q_DECLARE_METATYPE(cDistributor*)
+
+class cDistributorList : public QObject, public QList<cDistributor*>
+{
+	Q_OBJECT
+
+public:
+	cDistributorList(cDatabase* db, QObject* parent = nullptr);
+
+	bool			load();
+	cDistributor*	add(const qint32& id);
+	cDistributor*	add(const QString& name);
+	bool			remove(const qint32& id);
+	cDistributor*	find(const qint32& id);
+	cDistributor*	find(const QString& name);
+
+	bool			fillList(QStandardItemModel* model);
+
+	bool			save();
+private:
+	cDatabase*		m_db;
+
+signals:
+	void			distributorAdded(cDistributor* manufacturer);
+	void			distributorRemoved(cDistributor* manufacturer);
+};
+
+#endif // CDISTRIBUTOR_H
diff --git a/cdistributorwindow.cpp b/cdistributorwindow.cpp
new file mode 100644
index 0000000..46ee2d6
--- /dev/null
+++ b/cdistributorwindow.cpp
@@ -0,0 +1,111 @@
+#include "cdistributorwindow.h"
+#include "ui_cdistributorwindow.h"
+
+#include "cmainwindow.h"
+
+
+cDistributorWindow::cDistributorWindow(QWidget *parent) :
+	cMDISubWindow(parent),
+	ui(new Ui::cDistributorWindow),
+	m_distributor(nullptr)
+{
+	ui->setupUi(this);
+}
+
+cDistributorWindow::~cDistributorWindow()
+{
+	delete ui;
+}
+
+void cDistributorWindow::setDistributor(cDistributor* distributor)
+{
+	m_distributor	= distributor;
+
+	fillFields();
+
+	connect(ui->m_name,				&QLineEdit::textChanged,		this,	&cDistributorWindow::onNameChanged);
+	connect(ui->m_address,			&QPlainTextEdit::textChanged,	this,	&cDistributorWindow::onAddressChanged);
+	connect(ui->m_url,				&QLineEdit::textChanged,		this,	&cDistributorWindow::onURLChanged);
+	connect(ui->m_email,			&QLineEdit::textChanged,		this,	&cDistributorWindow::onEmailChanged);
+	connect(ui->m_phone,			&QLineEdit::textChanged,		this,	&cDistributorWindow::onPhoneChanged);
+	connect(ui->m_fax,				&QLineEdit::textChanged,		this,	&cDistributorWindow::onFaxChanged);
+	connect(ui->m_comment,			&QPlainTextEdit::textChanged,	this,	&cDistributorWindow::onCommentChanged);
+}
+
+cDistributor* cDistributorWindow::distributor()
+{
+	return(m_distributor);
+}
+
+void cDistributorWindow::onDistributorChanged(cDistributor* distributor)
+{
+	if(m_distributor != distributor)
+		return;
+
+	fillFields();
+}
+
+void cDistributorWindow::onNameChanged(const QString& name)
+{
+	m_distributor->setName(name);
+
+	if(m_distributor->item())
+		m_distributor->item()->setText(name);
+
+	emit somethingChanged();
+}
+
+void cDistributorWindow::onAddressChanged()
+{
+	m_distributor->setAddress(ui->m_address->toPlainText());
+
+	emit somethingChanged();
+}
+
+void cDistributorWindow::onURLChanged(const QString& url)
+{
+	m_distributor->setURL(url);
+
+	emit somethingChanged();
+}
+
+void cDistributorWindow::onEmailChanged(const QString& email)
+{
+	m_distributor->setEmail(email);
+
+	emit somethingChanged();
+}
+
+void cDistributorWindow::onPhoneChanged(const QString& phone)
+{
+	m_distributor->setPhone(phone);
+
+	emit somethingChanged();
+}
+
+void cDistributorWindow::onFaxChanged(const QString& fax)
+{
+	m_distributor->setFax(fax);
+
+	emit somethingChanged();
+}
+
+void cDistributorWindow::onCommentChanged()
+{
+	m_distributor->setComment(ui->m_comment->toPlainText());
+
+	emit somethingChanged();
+}
+
+void cDistributorWindow::fillFields()
+{
+	ui->m_name->setText(m_distributor->name());
+	ui->m_address->setPlainText(m_distributor->address());
+	ui->m_url->setText(m_distributor->url());
+	ui->m_email->setText(m_distributor->email());
+	ui->m_phone->setText(m_distributor->phone());
+	ui->m_fax->setText(m_distributor->fax());
+	ui->m_comment->setPlainText(m_distributor->comment());
+
+	setWindowTitle("distributor - " + m_distributor->name());
+}
diff --git a/cdistributorwindow.h b/cdistributorwindow.h
new file mode 100644
index 0000000..5d091f0
--- /dev/null
+++ b/cdistributorwindow.h
@@ -0,0 +1,50 @@
+#ifndef CDISTRIBUTORWINDOW_H
+#define CDISTRIBUTORWINDOW_H
+
+
+#include "cdistributor.h"
+
+#include "cmdisubwindow.h"
+#include "cmainwindow.h"
+
+#include <QWidget>
+
+
+namespace Ui {
+class cDistributorWindow;
+}
+
+class cDistributorWindow : public cMDISubWindow
+{
+	Q_OBJECT
+
+public:
+	explicit cDistributorWindow(QWidget *parent = nullptr);
+	~cDistributorWindow();
+
+	void						setDistributor(cDistributor* distributor);
+	cDistributor*				distributor();
+
+private:
+	Ui::cDistributorWindow*	ui;
+	cDistributor*				m_distributor;
+
+	void						fillFields();
+
+public slots:
+	void						onDistributorChanged(cDistributor* distributor);
+
+private slots:
+	void						onNameChanged(const QString& szName);
+	void						onAddressChanged();
+	void						onURLChanged(const QString& szURL);
+	void						onEmailChanged(const QString& szEmail);
+	void						onPhoneChanged(const QString& szPhone);
+	void						onFaxChanged(const QString& szFax);
+	void						onCommentChanged();
+
+signals:
+	void						somethingChanged();
+};
+
+#endif // CDISTRIBUTORWINDOW_H
diff --git a/cdistributorwindow.ui b/cdistributorwindow.ui
new file mode 100644
index 0000000..0989652
--- /dev/null
+++ b/cdistributorwindow.ui
@@ -0,0 +1,95 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>cDistributorWindow</class>
+ <widget class="QWidget" name="cDistributorWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Distributor - </string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="0" column="0">
+    <layout class="QFormLayout" name="formLayout">
+     <item row="0" column="0">
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>Name:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QLineEdit" name="m_name"/>
+     </item>
+     <item row="1" column="0">
+      <widget class="QLabel" name="label_2">
+       <property name="text">
+        <string>Address:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="QPlainTextEdit" name="m_address"/>
+     </item>
+     <item row="2" column="0">
+      <widget class="QLabel" name="label_3">
+       <property name="text">
+        <string>URL:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="2" column="1">
+      <widget class="QLineEdit" name="m_url"/>
+     </item>
+     <item row="3" column="0">
+      <widget class="QLabel" name="label_4">
+       <property name="text">
+        <string>Email:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="3" column="1">
+      <widget class="QLineEdit" name="m_email"/>
+     </item>
+     <item row="4" column="0">
+      <widget class="QLabel" name="label_5">
+       <property name="text">
+        <string>Phone:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="4" column="1">
+      <widget class="QLineEdit" name="m_phone"/>
+     </item>
+     <item row="5" column="0">
+      <widget class="QLabel" name="label_6">
+       <property name="text">
+        <string>Fax:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="5" column="1">
+      <widget class="QLineEdit" name="m_fax"/>
+     </item>
+     <item row="6" column="0">
+      <widget class="QLabel" name="label_7">
+       <property name="text">
+        <string>Comment:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="6" column="1">
+      <widget class="QPlainTextEdit" name="m_comment"/>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/cmainwindow.cpp b/cmainwindow.cpp
new file mode 100644
index 0000000..3986f83
--- /dev/null
+++ b/cmainwindow.cpp
@@ -0,0 +1,726 @@
+#include "cmainwindow.h"
+#include "ui_cmainwindow.h"
+
+#include "cdatabase.h"
+
+#include "cwidget.h"
+#include "cmanufacturerwindow.h"
+#include "cdistributorwindow.h"
+
+#include <QSettings>
+#include <QInputDialog>
+
+#include <QMessageBox>
+
+#include "common.h"
+
+
+cMainWindow::cMainWindow(cSplashScreen* splashScreen, QWidget *parent)
+	: QMainWindow(parent),
+	  ui(new Ui::cMainWindow),
+	  m_somethingChanged(false),
+	  m_splashScreen(splashScreen),
+	  m_database(nullptr),
+	  m_manufacturerList(nullptr),
+	  m_distributorList(nullptr),
+	  m_storageCategoryList(nullptr),
+	  m_storageList(nullptr),
+	  m_fileMenu(nullptr),
+	  m_fileToolBar(nullptr),
+	  m_fileQuitAction(nullptr),
+	  m_listAdd(nullptr),
+	  m_listEdit(nullptr),
+	  m_listRemove(nullptr),
+	  m_manufacturerListAddAction(nullptr),
+	  m_manufacturerListEditAction(nullptr),
+	  m_manufacturerListRemoveAction(nullptr),
+	  m_distributorListAddAction(nullptr),
+	  m_distributorListEditAction(nullptr),
+	  m_distributorListRemoveAction(nullptr),
+	  m_manufacturerListModel(nullptr),
+	  m_distributorListModel(nullptr),
+	  m_storageListModel(nullptr),
+	  m_updatingTab(false)
+{
+	initUI();
+	createActions();
+
+	loadData();
+
+	setListButtonState();
+	updateWindowTitle();
+}
+
+cMainWindow::~cMainWindow()
+{
+	if(m_manufacturerList)
+		delete m_manufacturerList;
+
+	if(m_distributorList)
+		delete m_distributorList;
+
+	if(m_storageCategoryList)
+		delete m_storageCategoryList;
+
+	if(m_storageList)
+		delete m_storageList;
+
+	if(m_database)
+		delete m_database;
+
+	delete ui;
+}
+
+void cMainWindow::closeEvent(QCloseEvent *event)
+{
+	QSettings	settings;
+	settings.setValue("main/width", QVariant::fromValue(size().width()));
+	settings.setValue("main/height", QVariant::fromValue(size().height()));
+	settings.setValue("main/x", QVariant::fromValue(x()));
+	settings.setValue("main/y", QVariant::fromValue(y()));
+	if(this->isMaximized())
+		settings.setValue("main/maximized", QVariant::fromValue(true));
+	else
+		settings.setValue("main/maximized", QVariant::fromValue(false));
+
+	QList<qint32>	sizes	= ui->m_splitter->sizes();
+
+	for(int x = 0;x < sizes.count();x++)
+		settings.setValue(QString("main/splitter%1").arg(x+1), QVariant::fromValue(sizes[x]));
+
+	event->accept();
+}
+
+void cMainWindow::initUI()
+{
+	ui->setupUi(this);
+
+	QIcon::setThemeName("TangoMFK");
+
+	QSettings	settings;
+
+	if(!settings.value("main/maximized").toBool())
+	{
+		qint32		iX		= settings.value("main/x", QVariant::fromValue(-1)).toInt();
+		qint32		iY		= settings.value("main/y", QVariant::fromValue(-1)).toInt();
+		qint32		iWidth	= settings.value("main/width", QVariant::fromValue(-1)).toInt();
+		qint32		iHeight	= settings.value("main/height", QVariant::fromValue(-1)).toInt();
+
+		if(iWidth != -1 && iHeight != -1)
+			resize(iWidth, iHeight);
+		if(iX != -1 && iY != -1)
+			move(iX, iY);
+	}
+
+	qint32		iWidth1	= settings.value("main/splitter1", QVariant::fromValue(-1)).toInt();
+	qint32		iWidth2	= settings.value("main/splitter2", QVariant::fromValue(-1)).toInt();
+	qint32		iWidth3	= settings.value("main/splitter3", QVariant::fromValue(-1)).toInt();
+
+	ui->m_splitter->setSizes(QList<int>() << iWidth1 << iWidth2 << iWidth3);
+
+	m_manufacturerListModel		= new QStandardItemModel(0, 1);
+	ui->m_manufacturerList->setModel(m_manufacturerListModel);
+
+	m_distributorListModel		= new QStandardItemModel(0, 1);
+	ui->m_distributorList->setModel(m_distributorListModel);
+
+	m_storageListModel			= new QStandardItemModel(0, 1);
+	ui->m_storageList->setModel(m_storageListModel);
+
+	ui->m_toolBox->setCurrentIndex(0);
+}
+
+void cMainWindow::createActions()
+{
+	setToolButtonStyle(Qt::ToolButtonFollowStyle);
+	createFileActions();
+
+	const QIcon	addIcon			= QIcon::fromTheme("list-add");
+	m_listAdd	= new QAction(addIcon, "add", this);
+	ui->m_listAdd->setDefaultAction(m_listAdd);
+	connect(m_listAdd,					&QAction::triggered,					this,	&cMainWindow::onListAdd);
+
+	const QIcon	editIcon		= QIcon::fromTheme("accessories-text-editor");
+	m_listEdit	= new QAction(editIcon, "edit", this);
+	ui->m_listEdit->setDefaultAction(m_listEdit);
+	connect(m_listEdit,					&QAction::triggered,					this,	&cMainWindow::onListEdit);
+
+	const QIcon	removeIcon		= QIcon::fromTheme("list-remove");
+	m_listRemove	= new QAction(removeIcon, "remove", this);
+	ui->m_listRemove->setDefaultAction(m_listRemove);
+	connect(m_listRemove,				&QAction::triggered,					this,	&cMainWindow::onListRemove);
+
+	connect(ui->m_toolBox,				&QToolBox::currentChanged,				this,	&cMainWindow::onToolBoxCurrentChanged);
+
+	connect(ui->m_manufacturerList,		&QTreeView::clicked,					this,	&cMainWindow::onManufacturerListClicked);
+	connect(ui->m_manufacturerList,		&QTreeView::doubleClicked,				this,	&cMainWindow::onManufacturerListDoubleClicked);
+	connect(m_manufacturerListModel,	&QStandardItemModel::itemChanged,		this,	&cMainWindow::onManufacturerListNameChanged);
+	connect(ui->m_manufacturerList,		&QTreeView::customContextMenuRequested,	this,	&cMainWindow::onManufacturerListContextMenu);
+
+	connect(ui->m_distributorList,		&QTreeView::clicked,					this,	&cMainWindow::onDistributorListClicked);
+	connect(ui->m_distributorList,		&QTreeView::doubleClicked,				this,	&cMainWindow::onDistributorListDoubleClicked);
+	connect(m_distributorListModel,		&QStandardItemModel::itemChanged,		this,	&cMainWindow::onDistributorListNameChanged);
+	connect(ui->m_distributorList,		&QTreeView::customContextMenuRequested,	this,	&cMainWindow::onDistributorListContextMenu);
+
+	connect(ui->m_mainTab,				&QTabWidget::currentChanged,			this,	&cMainWindow::onMainTabCurrentChanged);
+	connect(ui->m_mainTab,				&QTabWidget::tabCloseRequested,			this,	&cMainWindow::onMainTabTabCloseRequested);
+	connect(ui->m_mdiArea,				&QMdiArea::subWindowActivated,			this,	&cMainWindow::onMdiAreaSubWindowActivated);
+
+	createContextActions();
+}
+
+void cMainWindow::createContextActions()
+{
+	m_manufacturerListAddAction	= new QAction(tr("add..."), this);
+	connect(m_manufacturerListAddAction, &QAction::triggered, this, &cMainWindow::onManufacturerListAddClicked);
+
+	m_manufacturerListEditAction	= new QAction(tr("edit..."), this);
+	connect(m_manufacturerListEditAction, &QAction::triggered, this, &cMainWindow::onManufacturerListEditClicked);
+
+	m_manufacturerListRemoveAction	= new QAction(tr("remove..."), this);
+	connect(m_manufacturerListRemoveAction, &QAction::triggered, this, &cMainWindow::onManufacturerListRemoveClicked);
+
+	m_distributorListAddAction	= new QAction(tr("add..."), this);
+	connect(m_distributorListAddAction, &QAction::triggered, this, &cMainWindow::onDistributorListAddClicked);
+
+	m_distributorListEditAction	= new QAction(tr("edit..."), this);
+	connect(m_distributorListEditAction, &QAction::triggered, this, &cMainWindow::onDistributorListEditClicked);
+
+	m_distributorListRemoveAction	= new QAction(tr("remove..."), this);
+	connect(m_distributorListRemoveAction, &QAction::triggered, this, &cMainWindow::onDistributorListRemoveClicked);
+}
+
+void cMainWindow::createFileActions()
+{
+	m_fileMenu		= menuBar()->addMenu(tr("&File"));
+	m_fileToolBar	= addToolBar(tr("File Actions"));
+
+	m_fileSaveAction			= m_fileMenu->addAction(tr("&Save"), this, &cMainWindow::onFileSave);
+	m_fileSaveAction->setShortcut(Qt::CTRL | Qt::Key_S);
+
+	m_fileMenu->addSeparator();
+
+	m_fileQuitAction			= m_fileMenu->addAction(tr("&Quit"), this, &QWidget::close);
+	m_fileQuitAction->setShortcut(Qt::CTRL | Qt::Key_Q);
+}
+
+void cMainWindow::loadData()
+{
+	m_database	= new cDatabase();
+	m_database->connect();
+
+	m_manufacturerList	= new cManufacturerList(m_database);
+	m_manufacturerList->load();
+	m_manufacturerList->fillList(m_manufacturerListModel);
+
+	m_distributorList	= new cDistributorList(m_database);
+	m_distributorList->load();
+	m_distributorList->fillList(m_distributorListModel);
+
+	m_storageCategoryList	= new cStorageCategoryList(m_database);
+	m_storageCategoryList->load();
+	m_storageCategoryList->fillList(m_storageListModel);
+
+	m_storageList	= new cStorageList(m_database, m_storageCategoryList);
+	m_storageList->load();
+	m_storageList->fillList();
+}
+
+void cMainWindow::setListButtonState()
+{
+	switch(activeTab())
+	{
+	case TAB_MANUFACTURER_LIST:
+		if(ui->m_manufacturerList->selectionModel()->selectedRows().count())
+		{
+			m_listEdit->setEnabled(true);
+			m_listRemove->setEnabled(true);
+		}
+		else
+		{
+			m_listEdit->setEnabled(false);
+			m_listRemove->setEnabled(false);
+		}
+		break;
+	case TAB_DISTRIBUTOR_LIST:
+		if(ui->m_distributorList->selectionModel()->selectedRows().count())
+		{
+			m_listEdit->setEnabled(true);
+			m_listRemove->setEnabled(true);
+		}
+		else
+		{
+			m_listEdit->setEnabled(false);
+			m_listRemove->setEnabled(false);
+		}
+		break;
+	case TAB_PART_LIST:
+		{
+			m_listEdit->setEnabled(false);
+			m_listRemove->setEnabled(false);
+		}
+		break;
+	case TAB_PROJECT_LIST:
+		{
+			m_listEdit->setEnabled(false);
+			m_listRemove->setEnabled(false);
+		}
+		break;
+	}
+
+	m_listAdd->setEnabled(true);
+}
+
+void cMainWindow::onFileSave()
+{
+	if(m_manufacturerList->save())
+	{
+		m_somethingChanged	= false;
+		updateWindowTitle();
+	}
+
+	if(m_distributorList->save())
+	{
+		m_somethingChanged	= false;
+		updateWindowTitle();
+	}
+
+	if(m_storageList->save())
+	{
+		m_somethingChanged	= false;
+		updateWindowTitle();
+	}
+
+	if(m_storageCategoryList->save())
+	{
+		m_somethingChanged	= false;
+		updateWindowTitle();
+	}
+}
+
+void cMainWindow::onSomethingChanged()
+{
+	if(!m_somethingChanged)
+	{
+		m_somethingChanged	= true;
+		updateWindowTitle();
+	}
+}
+
+void cMainWindow::onToolBoxCurrentChanged(int /*index*/)
+{
+	setListButtonState();
+}
+
+void cMainWindow::onMainTabCurrentChanged(int /*index*/)
+{
+	if(m_updatingTab)
+		return;
+
+	m_updatingTab	= true;
+	cWidget*		lpWidget	= static_cast<cWidget*>(ui->m_mainTab->currentWidget());
+	QMdiSubWindow*	lpWindow	= lpWidget->window();
+	ui->m_mdiArea->setActiveSubWindow(lpWindow);
+	m_updatingTab	= false;
+}
+
+void cMainWindow::onMainTabTabCloseRequested(int index)
+{
+	if(m_updatingTab)
+		return;
+
+	m_updatingTab	= true;
+//	disconnectTextEdit();
+//	m_lpOldTextEdit	= nullptr;
+	cWidget*		lpWidget	= static_cast<cWidget*>(ui->m_mainTab->currentWidget());
+	QMdiSubWindow*	lpWindow	= lpWidget->window();
+	ui->m_mainTab->removeTab(index);
+	ui->m_mdiArea->removeSubWindow(lpWindow);
+	delete(lpWidget);
+	m_updatingTab	= false;
+}
+
+void cMainWindow::onMdiAreaSubWindowActivated(QMdiSubWindow *arg1)
+{
+	if(m_updatingTab)
+		return;
+
+	m_updatingTab	= true;
+
+	for(int x = 0;x < ui->m_mainTab->count();x++)
+	{
+		cWidget*	lpWidget	= static_cast<cWidget*>(ui->m_mainTab->widget(x));
+		if(lpWidget->window() == arg1)
+		{
+			ui->m_mainTab->setCurrentIndex(x);
+			m_updatingTab	= false;
+			return;
+		}
+	}
+	m_updatingTab	= false;
+}
+
+void cMainWindow::onSubWindowClosed(QWidget* lpSubWindow)
+{
+	if(m_updatingTab)
+		return;
+
+	m_updatingTab	= true;
+//	disconnectTextEdit();
+//	m_lpOldTextEdit	= nullptr;
+
+	for(int x = 0;x < ui->m_mainTab->count();x++)
+	{
+		cWidget*	lpWidget	= static_cast<cWidget*>(ui->m_mainTab->widget(x));
+		if(lpWidget->widget() == lpSubWindow)
+		{
+			ui->m_mainTab->removeTab(x);
+			m_updatingTab	= false;
+			return;
+		}
+	}
+	m_updatingTab	= false;
+}
+
+void cMainWindow::onManufacturerListClicked(const QModelIndex& /*index*/)
+{
+	setListButtonState();
+}
+
+void cMainWindow::onManufacturerListDoubleClicked(const QModelIndex& /*index*/)
+{
+	editManufacturer();
+}
+
+void cMainWindow::onManufacturerListContextMenu(const QPoint& pos)
+{
+	QMenu*			menu	= new QMenu(this);
+
+	menu->addAction(m_manufacturerListAddAction);
+
+	QStandardItem*	item	= nullptr;
+
+	if(ui->m_manufacturerList->selectionModel()->selectedRows().count())
+		item	= m_manufacturerListModel->itemFromIndex(ui->m_manufacturerList->currentIndex());
+	if(item)
+	{
+		menu->addAction(m_manufacturerListEditAction);
+		menu->addAction(m_manufacturerListRemoveAction);
+	}
+
+	menu->exec(ui->m_manufacturerList->mapToGlobal(pos));
+}
+
+void cMainWindow::onManufacturerListNameChanged(QStandardItem* item)
+{
+	cManufacturer*	manufacturer	= item->data(ITEM_MANUFACTURER_DATA).value<cManufacturer*>();
+	QString			name			= item->text();
+
+	if(name.isEmpty())
+	{
+		item->setText(manufacturer->name());
+		return;
+	}
+
+	if(name != manufacturer->name())
+	{
+		onSomethingChanged();
+		manufacturer->setName(name);
+		emit manufacturerNameChanged(manufacturer);
+	}
+}
+
+void cMainWindow::onDistributorListClicked(const QModelIndex& /*index*/)
+{
+	setListButtonState();
+}
+
+void cMainWindow::onDistributorListDoubleClicked(const QModelIndex& /*index*/)
+{
+	editDistributor();
+}
+
+void cMainWindow::onDistributorListContextMenu(const QPoint& pos)
+{
+	QMenu*			menu	= new QMenu(this);
+
+	menu->addAction(m_distributorListAddAction);
+
+	QStandardItem*	item	= nullptr;
+
+	if(ui->m_distributorList->selectionModel()->selectedRows().count())
+		item	= m_distributorListModel->itemFromIndex(ui->m_distributorList->currentIndex());
+	if(item)
+	{
+		menu->addAction(m_distributorListEditAction);
+		menu->addAction(m_distributorListRemoveAction);
+	}
+
+	menu->exec(ui->m_distributorList->mapToGlobal(pos));
+}
+
+void cMainWindow::onDistributorListNameChanged(QStandardItem* item)
+{
+	cDistributor*	distributor	= item->data(ITEM_DISTRIBUTOR_DATA).value<cDistributor*>();
+	QString			name			= item->text();
+
+	if(name.isEmpty())
+	{
+		item->setText(distributor->name());
+		return;
+	}
+
+	if(name != distributor->name())
+	{
+		onSomethingChanged();
+		distributor->setName(name);
+		emit distributorNameChanged(distributor);
+	}
+}
+
+void cMainWindow::onListAdd()
+{
+	switch(activeTab())
+	{
+	case TAB_MANUFACTURER_LIST:
+		addManufacturer();
+		break;
+	case TAB_DISTRIBUTOR_LIST:
+		addDistributor();
+		break;
+	}
+}
+
+void cMainWindow::onListEdit()
+{
+	switch(activeTab())
+	{
+	case TAB_MANUFACTURER_LIST:
+		editManufacturer();
+		break;
+	}
+	switch(activeTab())
+	{
+	case TAB_DISTRIBUTOR_LIST:
+		editDistributor();
+		break;
+	}
+}
+
+void cMainWindow::onListRemove()
+{
+	switch(activeTab())
+	{
+	case TAB_MANUFACTURER_LIST:
+		removeManufacturer();
+		break;
+	}
+	switch(activeTab())
+	{
+	case TAB_DISTRIBUTOR_LIST:
+		removeDistributor();
+		break;
+	}
+}
+
+void cMainWindow::onManufacturerListAddClicked()
+{
+	addManufacturer();
+}
+
+void cMainWindow::onManufacturerListEditClicked()
+{
+	editManufacturer();
+}
+
+void cMainWindow::onManufacturerListRemoveClicked()
+{
+	removeManufacturer();
+}
+
+void cMainWindow::onDistributorListAddClicked()
+{
+	addDistributor();
+}
+
+void cMainWindow::onDistributorListEditClicked()
+{
+	editDistributor();
+}
+
+void cMainWindow::onDistributorListRemoveClicked()
+{
+	removeDistributor();
+}
+
+qint16 cMainWindow::activeTab()
+{
+	QWidget*	widget	= ui->m_toolBox->currentWidget();
+
+	if(widget == ui->m_manufacturerListTab)
+		return(TAB_MANUFACTURER_LIST);
+	else if(widget == ui->m_distributorListTab)
+		return(TAB_DISTRIBUTOR_LIST);
+	else if(widget == ui->m_partListTab)
+		return(TAB_PART_LIST);
+	else if(widget == ui->m_projectListTab)
+		return(TAB_PROJECT_LIST);
+
+	return(0);
+}
+
+void cMainWindow::updateWindowTitle()
+{
+	QString	windowTitle	= "";
+
+	if(m_somethingChanged)
+		windowTitle	= "unsaved";
+
+	m_fileSaveAction->setEnabled(m_somethingChanged);
+
+	setWindowTitle(windowTitle);
+}
+
+void cMainWindow::addManufacturer()
+{
+	bool	ok;
+	QString			name			= QInputDialog::getText(this, tr("New Manufacturer"), tr("Name:"), QLineEdit::Normal, "", &ok);
+	if(!ok)
+		return;
+
+	cManufacturer*	manufacturer	= m_manufacturerList->add(name);
+
+	QStandardItem*	item			= new QStandardItem(name);
+	item->setData(QVariant::fromValue(manufacturer), ITEM_MANUFACTURER_DATA);
+	m_manufacturerListModel->appendRow(item);
+	m_manufacturerListModel->sort(Qt::AscendingOrder | Qt::CaseInsensitive);
+
+	onSomethingChanged();
+}
+
+void cMainWindow::editManufacturer()
+{
+	if(!ui->m_manufacturerList->selectionModel()->selectedIndexes().count())
+		return;
+
+	QModelIndex				index				= ui->m_manufacturerList->selectionModel()->selectedIndexes()[0];
+	QStandardItem*			item				= m_manufacturerListModel->itemFromIndex(index);
+	cManufacturer*			manufacturer		= item->data(ITEM_MANUFACTURER_DATA).value<cManufacturer*>();
+
+	for(int x = 0;x < ui->m_mainTab->count();x++)
+	{
+		cWidget*	widget	= static_cast<cWidget*>(ui->m_mainTab->widget(x));
+		if(widget->type() == cWidget::TYPE_manufacturer)
+		{
+			cManufacturerWindow*	manufacturerWindow	= static_cast<cManufacturerWindow*>(widget->widget());
+			if(manufacturerWindow->manufacturer() == manufacturer)
+			{
+				ui->m_mainTab->setCurrentIndex(x);
+				ui->m_mdiArea->setActiveSubWindow(widget->window());
+				m_updatingTab	= false;
+				return;
+			}
+		}
+	}
+
+	cManufacturerWindow*	manufacturerWindow	= new cManufacturerWindow(this);
+	manufacturerWindow->setManufacturer(manufacturer);
+	cWidget*				widget1				= new cWidget(manufacturerWindow);
+	widget1->setWindow(ui->m_mdiArea->addSubWindow(manufacturerWindow));
+	ui->m_mainTab->addTab(static_cast<QWidget*>(widget1), manufacturerWindow->windowTitle());
+	manufacturerWindow->show();
+
+	connect(manufacturerWindow,	&cManufacturerWindow::somethingChanged,	this,				&cMainWindow::onSomethingChanged);
+	connect(this,				&cMainWindow::manufacturerNameChanged,	manufacturerWindow,	&cManufacturerWindow::onManufacturerChanged);
+	connect(manufacturerWindow,	&cManufacturerWindow::subWindowClosed,	this,				&cMainWindow::onSubWindowClosed);
+}
+
+void cMainWindow::removeManufacturer()
+{
+	if(!ui->m_manufacturerList->selectionModel()->selectedIndexes().count())
+		return;
+
+	QModelIndex				index				= ui->m_manufacturerList->selectionModel()->selectedIndexes()[0];
+	QStandardItem*			item				= m_manufacturerListModel->itemFromIndex(index);
+	cManufacturer*			manufacturer		= item->data(ITEM_MANUFACTURER_DATA).value<cManufacturer*>();
+
+	if(QMessageBox::question(this, tr("Remove Manufacturer"), QString(tr("Are you sure you want to remove \"%1\"?")).arg(manufacturer->name())) == QMessageBox::No)
+		return;
+
+	if(!manufacturer->remove())
+		return;
+
+	m_manufacturerListModel->removeRow(index.row());
+}
+
+void cMainWindow::addDistributor()
+{
+	bool	ok;
+	QString			name			= QInputDialog::getText(this, tr("New Distributor"), tr("Name:"), QLineEdit::Normal, "", &ok);
+	if(!ok)
+		return;
+
+	cDistributor*	distributor	= m_distributorList->add(name);
+
+	QStandardItem*	item			= new QStandardItem(name);
+	item->setData(QVariant::fromValue(distributor), ITEM_DISTRIBUTOR_DATA);
+	m_distributorListModel->appendRow(item);
+	m_distributorListModel->sort(Qt::AscendingOrder | Qt::CaseInsensitive);
+
+	onSomethingChanged();
+}
+
+void cMainWindow::editDistributor()
+{
+	if(!ui->m_distributorList->selectionModel()->selectedIndexes().count())
+		return;
+
+	QModelIndex				index				= ui->m_distributorList->selectionModel()->selectedIndexes()[0];
+	QStandardItem*			item				= m_distributorListModel->itemFromIndex(index);
+	cDistributor*			distributor			= item->data(ITEM_DISTRIBUTOR_DATA).value<cDistributor*>();
+
+	for(int x = 0;x < ui->m_mainTab->count();x++)
+	{
+		cWidget*	widget	= static_cast<cWidget*>(ui->m_mainTab->widget(x));
+		if(widget->type() == cWidget::TYPE_distributor)
+		{
+			cDistributorWindow*	distributorWindow	= static_cast<cDistributorWindow*>(widget->widget());
+			if(distributorWindow->distributor() == distributor)
+			{
+				ui->m_mainTab->setCurrentIndex(x);
+				ui->m_mdiArea->setActiveSubWindow(widget->window());
+				m_updatingTab	= false;
+				return;
+			}
+		}
+	}
+
+	cDistributorWindow*	distributorWindow	= new cDistributorWindow(this);
+	distributorWindow->setDistributor(distributor);
+	cWidget*				widget1				= new cWidget(distributorWindow);
+	widget1->setWindow(ui->m_mdiArea->addSubWindow(distributorWindow));
+	ui->m_mainTab->addTab(static_cast<QWidget*>(widget1), distributorWindow->windowTitle());
+	distributorWindow->show();
+
+	connect(distributorWindow,	&cDistributorWindow::somethingChanged,	this,				&cMainWindow::onSomethingChanged);
+	connect(this,				&cMainWindow::distributorNameChanged,	distributorWindow,	&cDistributorWindow::onDistributorChanged);
+	connect(distributorWindow,	&cDistributorWindow::subWindowClosed,	this,				&cMainWindow::onSubWindowClosed);
+}
+
+void cMainWindow::removeDistributor()
+{
+	if(!ui->m_distributorList->selectionModel()->selectedIndexes().count())
+		return;
+
+	QModelIndex				index				= ui->m_distributorList->selectionModel()->selectedIndexes()[0];
+	QStandardItem*			item				= m_distributorListModel->itemFromIndex(index);
+	cDistributor*			distributor			= item->data(ITEM_DISTRIBUTOR_DATA).value<cDistributor*>();
+
+	if(QMessageBox::question(this, tr("Remove distributor"), QString(tr("Are you sure you want to remove \"%1\"?")).arg(distributor->name())) == QMessageBox::No)
+		return;
+
+	if(!distributor->remove())
+		return;
+
+	m_distributorListModel->removeRow(index.row());
+}
diff --git a/cmainwindow.h b/cmainwindow.h
new file mode 100644
index 0000000..76d4b32
--- /dev/null
+++ b/cmainwindow.h
@@ -0,0 +1,130 @@
+#ifndef CMAINWINDOW_H
+#define CMAINWINDOW_H
+
+
+#include "csplashscreen.h"
+
+#include "cdatabase.h"
+#include "cmanufacturer.h"
+#include "cdistributor.h"
+#include "cstoragecategory.h"
+#include "cstorage.h"
+
+#include <QMainWindow>
+#include <QCloseEvent>
+#include <QStandardItemModel>
+#include <QMdiSubWindow>
+
+
+QT_BEGIN_NAMESPACE
+namespace Ui { class cMainWindow; }
+QT_END_NAMESPACE
+
+class cMainWindow : public QMainWindow
+{
+	Q_OBJECT
+
+public:
+	cMainWindow(cSplashScreen* splashScreen, QWidget *parent = nullptr);
+	~cMainWindow();
+
+private:
+	Ui::cMainWindow*				ui;
+
+	bool							m_somethingChanged;
+
+	cSplashScreen*					m_splashScreen;
+	cDatabase*						m_database;
+	cManufacturerList*				m_manufacturerList;
+	cDistributorList*				m_distributorList;
+	cStorageCategoryList*			m_storageCategoryList;
+	cStorageList*					m_storageList;
+
+	QMenu*							m_fileMenu;
+
+	QToolBar*						m_fileToolBar;
+
+	QAction*						m_fileSaveAction;
+	QAction*						m_fileQuitAction;
+
+	QAction*						m_listAdd;
+	QAction*						m_listEdit;
+	QAction*						m_listRemove;
+
+	QAction*						m_manufacturerListAddAction;
+	QAction*						m_manufacturerListEditAction;
+	QAction*						m_manufacturerListRemoveAction;
+
+	QAction*						m_distributorListAddAction;
+	QAction*						m_distributorListEditAction;
+	QAction*						m_distributorListRemoveAction;
+
+	QStandardItemModel*				m_manufacturerListModel;
+	QStandardItemModel*				m_distributorListModel;
+	QStandardItemModel*				m_storageListModel;
+
+	bool							m_updatingTab;
+
+
+	void							initUI();
+	void							createActions();
+	void							createFileActions();
+	void							createContextActions();
+
+	void							loadData();
+
+	void							setListButtonState();
+
+	qint16							activeTab();
+
+	void							updateWindowTitle();
+
+	void							addManufacturer();
+	void							editManufacturer();
+	void							removeManufacturer();
+
+	void							addDistributor();
+	void							editDistributor();
+	void							removeDistributor();
+
+protected:
+	void							closeEvent(QCloseEvent* event);
+
+private slots:
+	void							onSomethingChanged();
+
+	void							onToolBoxCurrentChanged(int index);
+
+	void							onFileSave();
+
+	void							onMainTabCurrentChanged(int index);
+	void							onMainTabTabCloseRequested(int index);
+	void							onMdiAreaSubWindowActivated(QMdiSubWindow *arg1);
+	void							onSubWindowClosed(QWidget* lpSubWindow);
+
+	void							onManufacturerListClicked(const QModelIndex& index);
+	void							onManufacturerListDoubleClicked(const QModelIndex& index);
+	void							onManufacturerListContextMenu(const QPoint& pos);
+	void							onManufacturerListNameChanged(QStandardItem* item);
+	void							onManufacturerListAddClicked();
+	void							onManufacturerListEditClicked();
+	void							onManufacturerListRemoveClicked();
+
+	void							onDistributorListClicked(const QModelIndex& index);
+	void							onDistributorListDoubleClicked(const QModelIndex& index);
+	void							onDistributorListContextMenu(const QPoint& pos);
+	void							onDistributorListNameChanged(QStandardItem* item);
+	void							onDistributorListAddClicked();
+	void							onDistributorListEditClicked();
+	void							onDistributorListRemoveClicked();
+
+	void							onListAdd();
+	void							onListEdit();
+	void							onListRemove();
+
+signals:
+	void							manufacturerNameChanged(cManufacturer* manufacturer);
+	void							distributorNameChanged(cDistributor* distributor);
+};
+
+#endif // CMAINWINDOW_H
diff --git a/cmainwindow.ui b/cmainwindow.ui
new file mode 100644
index 0000000..01f4b98
--- /dev/null
+++ b/cmainwindow.ui
@@ -0,0 +1,240 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>cMainWindow</class>
+ <widget class="QMainWindow" name="cMainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string/>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QGridLayout" name="gridLayout">
+    <item row="0" column="0">
+     <widget class="QSplitter" name="m_splitter">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+      <widget class="QWidget" name="verticalLayoutWidget">
+       <layout class="QVBoxLayout" name="verticalLayout">
+        <item>
+         <layout class="QHBoxLayout" name="m_buttonLayout">
+          <item>
+           <widget class="QToolButton" name="m_listAdd">
+            <property name="text">
+             <string/>
+            </property>
+            <property name="toolButtonStyle">
+             <enum>Qt::ToolButtonIconOnly</enum>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QToolButton" name="m_listEdit">
+            <property name="text">
+             <string/>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QToolButton" name="m_listRemove">
+            <property name="text">
+             <string/>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <spacer name="horizontalSpacer">
+            <property name="orientation">
+             <enum>Qt::Horizontal</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>40</width>
+              <height>20</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+         </layout>
+        </item>
+        <item>
+         <widget class="QToolBox" name="m_toolBox">
+          <property name="currentIndex">
+           <number>2</number>
+          </property>
+          <widget class="QWidget" name="m_manufacturerListTab">
+           <property name="geometry">
+            <rect>
+             <x>0</x>
+             <y>0</y>
+             <width>89</width>
+             <height>362</height>
+            </rect>
+           </property>
+           <attribute name="label">
+            <string>Manufacturer</string>
+           </attribute>
+           <layout class="QGridLayout" name="gridLayout_2">
+            <item row="0" column="0">
+             <widget class="QTreeView" name="m_manufacturerList">
+              <property name="contextMenuPolicy">
+               <enum>Qt::CustomContextMenu</enum>
+              </property>
+              <property name="editTriggers">
+               <set>QAbstractItemView::EditKeyPressed</set>
+              </property>
+              <property name="rootIsDecorated">
+               <bool>false</bool>
+              </property>
+              <attribute name="headerVisible">
+               <bool>false</bool>
+              </attribute>
+             </widget>
+            </item>
+           </layout>
+          </widget>
+          <widget class="QWidget" name="m_distributorListTab">
+           <property name="geometry">
+            <rect>
+             <x>0</x>
+             <y>0</y>
+             <width>89</width>
+             <height>362</height>
+            </rect>
+           </property>
+           <attribute name="label">
+            <string>Distributor</string>
+           </attribute>
+           <layout class="QGridLayout" name="gridLayout_3">
+            <item row="0" column="0">
+             <widget class="QTreeView" name="m_distributorList">
+              <property name="contextMenuPolicy">
+               <enum>Qt::CustomContextMenu</enum>
+              </property>
+              <property name="editTriggers">
+               <set>QAbstractItemView::EditKeyPressed</set>
+              </property>
+              <property name="rootIsDecorated">
+               <bool>false</bool>
+              </property>
+              <property name="headerHidden">
+               <bool>true</bool>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </widget>
+          <widget class="QWidget" name="m_storage">
+           <property name="geometry">
+            <rect>
+             <x>0</x>
+             <y>0</y>
+             <width>89</width>
+             <height>362</height>
+            </rect>
+           </property>
+           <attribute name="label">
+            <string>Storage</string>
+           </attribute>
+           <layout class="QGridLayout" name="gridLayout_4">
+            <item row="0" column="0">
+             <widget class="QTreeView" name="m_storageList">
+              <property name="rootIsDecorated">
+               <bool>true</bool>
+              </property>
+              <attribute name="headerVisible">
+               <bool>false</bool>
+              </attribute>
+             </widget>
+            </item>
+           </layout>
+          </widget>
+          <widget class="QWidget" name="m_partListTab">
+           <property name="geometry">
+            <rect>
+             <x>0</x>
+             <y>0</y>
+             <width>89</width>
+             <height>362</height>
+            </rect>
+           </property>
+           <attribute name="label">
+            <string>Part</string>
+           </attribute>
+          </widget>
+          <widget class="QWidget" name="m_projectListTab">
+           <property name="geometry">
+            <rect>
+             <x>0</x>
+             <y>0</y>
+             <width>89</width>
+             <height>362</height>
+            </rect>
+           </property>
+           <attribute name="label">
+            <string>Project</string>
+           </attribute>
+          </widget>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+      <widget class="QWidget" name="verticalLayoutWidget_2">
+       <layout class="QVBoxLayout" name="verticalLayout_2" stretch="0,99">
+        <item>
+         <widget class="QTabWidget" name="m_mainTab">
+          <property name="currentIndex">
+           <number>-1</number>
+          </property>
+          <property name="documentMode">
+           <bool>true</bool>
+          </property>
+          <property name="tabsClosable">
+           <bool>true</bool>
+          </property>
+          <property name="movable">
+           <bool>true</bool>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QMdiArea" name="m_mdiArea"/>
+        </item>
+       </layout>
+      </widget>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="m_menuBar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>800</width>
+     <height>21</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QStatusBar" name="m_statusBar"/>
+  <widget class="QToolBar" name="m_toolBar">
+   <property name="windowTitle">
+    <string>toolBar</string>
+   </property>
+   <attribute name="toolBarArea">
+    <enum>TopToolBarArea</enum>
+   </attribute>
+   <attribute name="toolBarBreak">
+    <bool>false</bool>
+   </attribute>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/cmanufacturer.cpp b/cmanufacturer.cpp
new file mode 100644
index 0000000..e07a9b5
--- /dev/null
+++ b/cmanufacturer.cpp
@@ -0,0 +1,364 @@
+#include "cmanufacturer.h"
+
+#include <QSqlQuery>
+#include <QSqlError>
+
+#include <QStandardItem>
+
+#include "common.h"
+
+
+cManufacturer::cManufacturer(cDatabase* db, qint32 id, QObject* parent) :
+	QObject(parent),
+	m_db(db),
+	m_changed(false),
+	m_id(id),
+	m_name(""),
+	m_address(""),
+	m_url(""),
+	m_email(""),
+	m_comment(""),
+	m_phone(""),
+	m_fax(""),
+	m_item(nullptr)
+{
+}
+
+cManufacturer::cManufacturer(cManufacturer* manufacturer)
+{
+	set(manufacturer);
+}
+
+void cManufacturer::set(cManufacturer* manufacturer)
+{
+	m_db		= manufacturer->db();
+	m_id		= manufacturer->id();
+	m_name		= manufacturer->name();
+	m_address	= manufacturer->address();
+	m_url		= manufacturer->url();
+	m_email		= manufacturer->email();
+	m_comment	= manufacturer->comment();
+	m_phone		= manufacturer->phone();
+	m_fax		= manufacturer->fax();
+}
+
+void cManufacturer::setID(const qint32& id)
+{
+	m_id		= id;
+	m_changed	= true;
+	emit idChanged(id);
+	emit manufacturerChanged(this);
+}
+
+qint32 cManufacturer::id()
+{
+	return(m_id);
+}
+
+void cManufacturer::setName(const QString& name)
+{
+	m_name		= name;
+	m_changed	= true;
+	emit nameChanged(name);
+	emit manufacturerChanged(this);
+}
+
+QString cManufacturer::name()
+{
+	return(m_name);
+}
+
+void cManufacturer::setAddress(const QString& address)
+{
+	m_address	= address;
+	emit addressChanged(address);
+	emit manufacturerChanged(this);
+}
+
+QString cManufacturer::address()
+{
+	return(m_address);
+}
+
+void cManufacturer::setURL(const QString& url)
+{
+	m_url		= url;
+	m_changed	= true;
+	emit urlChanged(url);
+	emit manufacturerChanged(this);
+}
+
+QString cManufacturer::url()
+{
+	return(m_url);
+}
+
+void cManufacturer::setEmail(const QString& email)
+{
+	m_email		= email;
+	m_changed	= true;
+	emit emailChanged(email);
+	emit manufacturerChanged(this);
+}
+
+QString cManufacturer::email()
+{
+	return(m_email);
+}
+
+void cManufacturer::setComment(const QString& comment)
+{
+	m_comment	= comment;
+	emit commentChanged(comment);
+	emit manufacturerChanged(this);
+}
+
+QString cManufacturer::comment()
+{
+	return(m_comment);
+}
+
+void cManufacturer::setPhone(const QString& phone)
+{
+	m_phone		= phone;
+	m_changed	= true;
+	emit phoneChanged(phone);
+	emit manufacturerChanged(this);
+}
+
+QString cManufacturer::phone()
+{
+	return(m_phone);
+}
+
+void cManufacturer::setFax(const QString& fax)
+{
+	m_fax		= fax;
+	m_changed	= true;
+	emit faxChanged(fax);
+	emit manufacturerChanged(this);
+}
+
+QString cManufacturer::fax()
+{
+	return(m_fax);
+}
+
+void cManufacturer::setItem(QStandardItem* item)
+{
+	m_item		= item;
+}
+
+QStandardItem* cManufacturer::item()
+{
+	return(m_item);
+}
+
+bool cManufacturer::save()
+{
+	if(!m_changed)
+		return(true);
+
+	QSqlQuery	query(m_db->db());
+
+	if(m_id == -1)
+		query.prepare("INSERT INTO manufacturer (name, address, url, email, comment, phone, fax) VALUES (:name, :address, :url, :email, :comment, :phone, :fax);");
+	else
+		query.prepare("UPDATE manufacturer SET name=:name, address=:address, url=:url, email=:email, comment=:comment, phone=:phone, fax=:fax WHERE id=:id;");
+
+	query.bindValue(":id", m_id);
+	query.bindValue(":name", m_name);
+	query.bindValue(":address", m_address);
+	query.bindValue(":url", m_url);
+	query.bindValue(":email", m_email);
+	query.bindValue(":comment", m_comment);
+	query.bindValue(":phone", m_phone);
+	query.bindValue(":fax", m_fax);
+
+	if(!query.exec())
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	if(m_id == -1)
+	{
+		if(!query.exec("SELECT MAX(id) MAXID FROM manufacturer;"))
+		{
+			myDebug << query.lastError().text();
+			return(false);
+		}
+
+		query.first();
+		m_id = query.value("MAXID").toInt();
+	}
+	m_changed	= false;
+	return(true);
+}
+
+cDatabase* cManufacturer::db()
+{
+    return(m_db);
+}
+
+bool cManufacturer::remove()
+{
+	QSqlQuery	query(m_db->db());
+
+	query.prepare("DELETE FROM manufacturer WHERE id=:id;");
+	query.bindValue(":id", m_id);
+
+	if(!query.exec())
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	return(true);
+}
+
+void cManufacturer::clearSave()
+{
+	m_changed	= false;
+}
+
+cManufacturerList::cManufacturerList(cDatabase* db, QObject* parent) :
+	QObject(parent),
+	m_db(db)
+{
+}
+
+bool cManufacturerList::load()
+{
+	if(!m_db->db().isOpen())
+		return(false);
+
+	QString		sql	= QString("SELECT   id, "
+							  "         name, "
+							  "         address, "
+							  "         url, "
+							  "         email, "
+							  "         comment, "
+							  "         phone, "
+							  "         fax "
+							  "FROM     manufacturer "
+							  "ORDER BY name;");
+	QSqlQuery	query(m_db->db());
+
+	query.prepare(sql);
+
+	if(!query.exec())
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	while(query.next())
+	{
+		cManufacturer*	lpManufacturer	= add(query.value("id").toInt());
+		lpManufacturer->setName(query.value("name").toString());
+		lpManufacturer->setAddress(query.value("address").toString());
+		lpManufacturer->setURL(query.value("url").toString());
+		lpManufacturer->setEmail(query.value("email").toString());
+		lpManufacturer->setComment(query.value("comment").toString());
+		lpManufacturer->setPhone(query.value("phone").toString());
+		lpManufacturer->setFax(query.value("fax").toString());
+	}
+
+	return(true);
+}
+
+cManufacturer* cManufacturerList::add(const qint32& id)
+{
+	cManufacturer*	lpNew	= find(id);
+
+	if(!lpNew)
+	{
+		lpNew	= new cManufacturer(m_db, id);
+		append(lpNew);
+		emit manufacturerAdded(lpNew);
+	}
+
+	return(lpNew);
+}
+
+cManufacturer* cManufacturerList::add(const QString& name)
+{
+	cManufacturer*	lpNew	= new cManufacturer(m_db);
+	lpNew->setName(name);
+	append(lpNew);
+	emit manufacturerAdded(lpNew);
+
+	return(lpNew);
+}
+
+bool cManufacturerList::remove(const qint32& id)
+{
+	cManufacturer*	manufacturer	= find(id);
+	if(!manufacturer)
+		return(false);
+
+	if(!manufacturer->remove())
+		return(false);
+
+	if(!removeOne(manufacturer))
+		return(false);
+
+	emit manufacturerRemoved(manufacturer);
+
+	return(true);
+}
+
+cManufacturer* cManufacturerList::find(const qint32& id)
+{
+	for(int i = 0;i < count();i++)
+	{
+		if(at(i)->id() == id)
+			return(at(i));
+	}
+
+	return(nullptr);
+}
+
+cManufacturer* cManufacturerList::find(const QString& name)
+{
+	for(int i = 0;i < count();i++)
+	{
+		if(at(i)->name() == name)
+			return(at(i));
+	}
+
+	return(nullptr);
+}
+
+bool cManufacturerList::fillList(QStandardItemModel* model)
+{
+	model->clear();
+
+	if(!count())
+		return(true);
+
+	for(int i = 0;i < count();i++)
+	{
+		QStandardItem*	item	= new QStandardItem;
+		at(i)->setItem(item);
+		item->setText(at(i)->name());
+		item->setData(QVariant::fromValue(at(i)), ITEM_MANUFACTURER_DATA);
+		model->appendRow(item);
+	}
+
+	return(true);
+}
+
+bool cManufacturerList::save()
+{
+	bool	ret	= true;
+
+	for(int i = 0;i < count();i++)
+	{
+		if(!at(i)->save())
+			ret	= false;
+	}
+
+	return(ret);
+}
diff --git a/cmanufacturer.h b/cmanufacturer.h
new file mode 100644
index 0000000..b5e94c0
--- /dev/null
+++ b/cmanufacturer.h
@@ -0,0 +1,108 @@
+#ifndef CMANUFACTURER_H
+#define CMANUFACTURER_H
+
+
+#include "cdatabase.h"
+
+#include <QMetaType>
+#include <QList>
+#include <QObject>
+
+#include <QStandardItem>
+#include <QStandardItemModel>
+
+
+class cManufacturer : public QObject
+{
+	Q_OBJECT
+
+public:
+	explicit cManufacturer(cDatabase* db, qint32 id = -1, QObject* parent = nullptr);
+	cManufacturer(cManufacturer* manufacturer);
+
+	void			set(cManufacturer* manufacturer);
+
+	void			setID(const qint32& id);
+	qint32			id();
+
+	void			setName(const QString& name);
+	QString			name();
+
+	void			setAddress(const QString& address);
+	QString			address();
+
+	void			setURL(const QString& url);
+	QString			url();
+
+	void			setEmail(const QString& email);
+	QString			email();
+
+	void			setComment(const QString& comment);
+	QString			comment();
+
+	void			setPhone(const QString& phone);
+	QString			phone();
+
+	void			setFax(const QString& fax);
+	QString			fax();
+
+	void			setItem(QStandardItem* item);
+	QStandardItem*	item();
+
+	bool			save();
+	void			clearSave();
+	bool			remove();
+
+	cDatabase*		db();
+private:
+	cDatabase*		m_db;
+	bool			m_changed;
+	qint32			m_id;
+	QString			m_name;
+	QString			m_address;
+	QString			m_url;
+	QString			m_email;
+	QString			m_comment;
+	QString			m_phone;
+	QString			m_fax;
+	QStandardItem*	m_item;
+signals:
+	void			manufacturerChanged(cManufacturer* manufacturer);
+	void			idChanged(const qint32& id);
+	void			nameChanged(const QString& name);
+	void			addressChanged(const QString& address);
+	void			urlChanged(const QString& url);
+	void			emailChanged(const QString& email);
+	void			commentChanged(const QString& comment);
+	void			phoneChanged(const QString& phone);
+	void			faxChanged(const QString& fax);
+};
+
+Q_DECLARE_METATYPE(cManufacturer*)
+
+class cManufacturerList : public QObject, public QList<cManufacturer*>
+{
+	Q_OBJECT
+
+public:
+	cManufacturerList(cDatabase* db, QObject* parent = nullptr);
+
+	bool			load();
+	cManufacturer*	add(const qint32& id);
+	cManufacturer*	add(const QString& name);
+	bool			remove(const qint32& id);
+	cManufacturer*	find(const qint32& id);
+	cManufacturer*	find(const QString& name);
+
+	bool			fillList(QStandardItemModel* model);
+
+	bool			save();
+private:
+	cDatabase*		m_db;
+
+signals:
+	void			manufacturerAdded(cManufacturer* manufacturer);
+	void			manufacturerRemoved(cManufacturer* manufacturer);
+};
+
+#endif // CMANUFACTURER_H
diff --git a/cmanufacturerwindow.cpp b/cmanufacturerwindow.cpp
new file mode 100644
index 0000000..0782a19
--- /dev/null
+++ b/cmanufacturerwindow.cpp
@@ -0,0 +1,111 @@
+#include "cmanufacturerwindow.h"
+#include "ui_cmanufacturerwindow.h"
+
+#include "cmainwindow.h"
+
+
+cManufacturerWindow::cManufacturerWindow(QWidget *parent) :
+	cMDISubWindow(parent),
+	ui(new Ui::cManufacturerWindow),
+	m_manufacturer(nullptr)
+{
+	ui->setupUi(this);
+}
+
+cManufacturerWindow::~cManufacturerWindow()
+{
+	delete ui;
+}
+
+void cManufacturerWindow::setManufacturer(cManufacturer* manufacturer)
+{
+	m_manufacturer	= manufacturer;
+
+	fillFields();
+
+	connect(ui->m_name,				&QLineEdit::textChanged,		this,	&cManufacturerWindow::onNameChanged);
+	connect(ui->m_address,			&QPlainTextEdit::textChanged,	this,	&cManufacturerWindow::onAddressChanged);
+	connect(ui->m_url,				&QLineEdit::textChanged,		this,	&cManufacturerWindow::onURLChanged);
+	connect(ui->m_email,			&QLineEdit::textChanged,		this,	&cManufacturerWindow::onEmailChanged);
+	connect(ui->m_phone,			&QLineEdit::textChanged,		this,	&cManufacturerWindow::onPhoneChanged);
+	connect(ui->m_fax,				&QLineEdit::textChanged,		this,	&cManufacturerWindow::onFaxChanged);
+	connect(ui->m_comment,			&QPlainTextEdit::textChanged,	this,	&cManufacturerWindow::onCommentChanged);
+}
+
+cManufacturer* cManufacturerWindow::manufacturer()
+{
+	return(m_manufacturer);
+}
+
+void cManufacturerWindow::onManufacturerChanged(cManufacturer* manufacturer)
+{
+	if(m_manufacturer != manufacturer)
+		return;
+
+	fillFields();
+}
+
+void cManufacturerWindow::onNameChanged(const QString& name)
+{
+	m_manufacturer->setName(name);
+
+	if(m_manufacturer->item())
+		m_manufacturer->item()->setText(name);
+
+	emit somethingChanged();
+}
+
+void cManufacturerWindow::onAddressChanged()
+{
+	m_manufacturer->setAddress(ui->m_address->toPlainText());
+
+	emit somethingChanged();
+}
+
+void cManufacturerWindow::onURLChanged(const QString& url)
+{
+	m_manufacturer->setURL(url);
+
+	emit somethingChanged();
+}
+
+void cManufacturerWindow::onEmailChanged(const QString& email)
+{
+	m_manufacturer->setEmail(email);
+
+	emit somethingChanged();
+}
+
+void cManufacturerWindow::onPhoneChanged(const QString& phone)
+{
+	m_manufacturer->setPhone(phone);
+
+	emit somethingChanged();
+}
+
+void cManufacturerWindow::onFaxChanged(const QString& fax)
+{
+	m_manufacturer->setFax(fax);
+
+	emit somethingChanged();
+}
+
+void cManufacturerWindow::onCommentChanged()
+{
+	m_manufacturer->setComment(ui->m_comment->toPlainText());
+
+	emit somethingChanged();
+}
+
+void cManufacturerWindow::fillFields()
+{
+	ui->m_name->setText(m_manufacturer->name());
+	ui->m_address->setPlainText(m_manufacturer->address());
+	ui->m_url->setText(m_manufacturer->url());
+	ui->m_email->setText(m_manufacturer->email());
+	ui->m_phone->setText(m_manufacturer->phone());
+	ui->m_fax->setText(m_manufacturer->fax());
+	ui->m_comment->setPlainText(m_manufacturer->comment());
+
+	setWindowTitle("manufacturer - " + m_manufacturer->name());
+}
diff --git a/cmanufacturerwindow.h b/cmanufacturerwindow.h
new file mode 100644
index 0000000..68cab00
--- /dev/null
+++ b/cmanufacturerwindow.h
@@ -0,0 +1,50 @@
+#ifndef CMANUFACTURERWINDOW_H
+#define CMANUFACTURERWINDOW_H
+
+
+#include "cmanufacturer.h"
+
+#include "cmdisubwindow.h"
+#include "cmainwindow.h"
+
+#include <QWidget>
+
+
+namespace Ui {
+class cManufacturerWindow;
+}
+
+class cManufacturerWindow : public cMDISubWindow
+{
+	Q_OBJECT
+
+public:
+	explicit cManufacturerWindow(QWidget *parent = nullptr);
+	~cManufacturerWindow();
+
+	void						setManufacturer(cManufacturer* manufacturer);
+	cManufacturer*				manufacturer();
+
+private:
+	Ui::cManufacturerWindow*	ui;
+	cManufacturer*				m_manufacturer;
+
+	void						fillFields();
+
+public slots:
+	void						onManufacturerChanged(cManufacturer* manufacturer);
+
+private slots:
+	void						onNameChanged(const QString& szName);
+	void						onAddressChanged();
+	void						onURLChanged(const QString& szURL);
+	void						onEmailChanged(const QString& szEmail);
+	void						onPhoneChanged(const QString& szPhone);
+	void						onFaxChanged(const QString& szFax);
+	void						onCommentChanged();
+
+signals:
+	void						somethingChanged();
+};
+
+#endif // CMANUFACTURERWINDOW_H
diff --git a/cmanufacturerwindow.ui b/cmanufacturerwindow.ui
new file mode 100644
index 0000000..3596786
--- /dev/null
+++ b/cmanufacturerwindow.ui
@@ -0,0 +1,95 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>cManufacturerWindow</class>
+ <widget class="QWidget" name="cManufacturerWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Manufacturer - </string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="0" column="0">
+    <layout class="QFormLayout" name="formLayout">
+     <item row="0" column="0">
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>Name:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QLineEdit" name="m_name"/>
+     </item>
+     <item row="1" column="0">
+      <widget class="QLabel" name="label_2">
+       <property name="text">
+        <string>Address:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="QPlainTextEdit" name="m_address"/>
+     </item>
+     <item row="2" column="0">
+      <widget class="QLabel" name="label_3">
+       <property name="text">
+        <string>URL:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="2" column="1">
+      <widget class="QLineEdit" name="m_url"/>
+     </item>
+     <item row="3" column="0">
+      <widget class="QLabel" name="label_4">
+       <property name="text">
+        <string>Email:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="3" column="1">
+      <widget class="QLineEdit" name="m_email"/>
+     </item>
+     <item row="4" column="0">
+      <widget class="QLabel" name="label_5">
+       <property name="text">
+        <string>Phone:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="4" column="1">
+      <widget class="QLineEdit" name="m_phone"/>
+     </item>
+     <item row="5" column="0">
+      <widget class="QLabel" name="label_6">
+       <property name="text">
+        <string>Fax:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="5" column="1">
+      <widget class="QLineEdit" name="m_fax"/>
+     </item>
+     <item row="6" column="0">
+      <widget class="QLabel" name="label_7">
+       <property name="text">
+        <string>Comment:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="6" column="1">
+      <widget class="QPlainTextEdit" name="m_comment"/>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/cmdisubwindow.cpp b/cmdisubwindow.cpp
new file mode 100644
index 0000000..7a9e47b
--- /dev/null
+++ b/cmdisubwindow.cpp
@@ -0,0 +1,19 @@
+/*!
+ \file cmdisubwindow.cpp
+
+*/
+
+#include "cmdisubwindow.h"
+
+#include <QCloseEvent>
+
+
+cMDISubWindow::cMDISubWindow(QWidget *parent) : QWidget(parent)
+{
+}
+
+void cMDISubWindow::closeEvent(QCloseEvent* event)
+{
+	emit subWindowClosed(this);
+	event->accept();
+}
diff --git a/cmdisubwindow.h b/cmdisubwindow.h
new file mode 100644
index 0000000..ecd4d24
--- /dev/null
+++ b/cmdisubwindow.h
@@ -0,0 +1,51 @@
+/*!
+ \file cmdisubwindow.h
+
+*/
+
+#ifndef CMDISUBWINDOW_H
+#define CMDISUBWINDOW_H
+
+
+#include <QWidget>
+
+
+/*!
+ \brief
+
+ \class cMDISubWindow cmdisubwindow.h "cmdisubwindow.h"
+*/
+class cMDISubWindow : public QWidget
+{
+	Q_OBJECT
+public:
+	/*!
+	 \brief
+
+	 \fn cMDISubWindow
+	 \param parent
+	*/
+	explicit cMDISubWindow(QWidget *parent = nullptr);
+
+signals:
+	/*!
+	 \brief
+
+	 \fn subWindowClosed
+	 \param lpWidget
+	*/
+	void					subWindowClosed(QWidget* lpWidget);
+
+public slots:
+
+protected:
+	/*!
+	 \brief
+
+	 \fn closeEvent
+	 \param event
+	*/
+	void					closeEvent(QCloseEvent *event);
+};
+
+#endif // CMDISUBWINDOW_H
diff --git a/common.cpp b/common.cpp
new file mode 100644
index 0000000..f027f9d
--- /dev/null
+++ b/common.cpp
@@ -0,0 +1,12 @@
+/*!
+ \file common.cpp
+
+*/
+
+/*!
+ \file common.cpp
+
+*/
+
+#include "common.h"
+
diff --git a/common.h b/common.h
new file mode 100644
index 0000000..22a7382
--- /dev/null
+++ b/common.h
@@ -0,0 +1,39 @@
+/*!
+ \file common.h
+
+*/
+
+#ifndef COMMON_H
+#define COMMON_H
+
+
+#include <QDebug>
+
+
+#define THUMBNAIL_WIDTH		160
+#define THUMBNAIL_HEIGHT	120
+
+
+#ifdef __GNUC__
+	#define myDebug qDebug() << __FILE__ << "(" << __LINE__ << ") - " << __PRETTY_FUNCTION__ << ":"
+#elif __MINGW32__
+	#define myDebug qDebug() << __FILE__ << "(" << __LINE__ << ") - " << __PRETTY_FUNCTION__ << ":"
+#else
+	#define myDebug qDebug() << __FILE__ << "(" << __LINE__ << ") - " << __FUNCTION__ << ":"
+#endif
+
+#define ITEM_MANUFACTURER_DATA		(Qt::UserRole+1)
+#define ITEM_DISTRIBUTOR_DATA		(Qt::UserRole+2)
+#define ITEM_STORAGE_CATEGORY_DATA	(Qt::UserRole+3)
+#define ITEM_STORAGE_DATA			(Qt::UserRole+4)
+#define ITEM_PART_DATA				(Qt::UserRole+5)
+#define ITEM_PROJECT_DATA			(Qt::UserRole+6)
+
+#define TAB_MANUFACTURER_LIST		1
+#define TAB_DISTRIBUTOR_LIST		2
+#define TAB_STORAGE_LIST			3
+#define TAB_PART_LIST				4
+#define TAB_PROJECT_LIST			5
+
+
+#endif // COMMON_H
diff --git a/csplashscreen.cpp b/csplashscreen.cpp
new file mode 100644
index 0000000..b8587a8
--- /dev/null
+++ b/csplashscreen.cpp
@@ -0,0 +1,68 @@
+/*!
+ \file csplashscreen.cpp
+
+*/
+
+#include "csplashscreen.h"
+//#include "common.h"
+
+#include <QStyleOptionProgressBar>
+
+
+cSplashScreen::cSplashScreen(const QPixmap& pixmap, QFont& font) :
+	QSplashScreen(pixmap),
+	m_iMax(100),
+	m_iProgress(0)
+{
+	setFont(font);
+	m_textDocument.setDefaultFont(font);
+}
+
+void cSplashScreen::setMax(qint32 max)
+{
+	m_iMax	= max;
+}
+
+void cSplashScreen::drawContents(QPainter *painter)
+{
+	painter->translate(m_rect.topLeft());
+	m_textDocument.setHtml(m_szMessage);
+	m_textDocument.drawContents(painter);
+
+	QStyleOptionProgressBar	pbstyle;
+	pbstyle.initFrom(this);
+	pbstyle.state = QStyle::State_Enabled;
+	pbstyle.textVisible = false;
+	pbstyle.minimum = 0;
+	pbstyle.maximum = m_iMax;
+	pbstyle.progress = m_iProgress;
+	pbstyle.invertedAppearance = false;
+	pbstyle.rect = QRect(0, 330, 390, 10); // Where is it.
+
+	// Draw it...
+	style()->drawControl(QStyle::CE_ProgressBar, &pbstyle, painter, this);
+}
+
+void cSplashScreen::showStatusMessage(const QString& message)
+{
+	m_szMessage	= message;
+	showMessage(m_szMessage);
+}
+
+void cSplashScreen::addStatusMessage(const QString& message)
+{
+	m_szMessage.append(message);
+	showMessage(m_szMessage);
+}
+
+void cSplashScreen::setMessageRect(QRect rect)
+{
+	m_rect			= rect;
+	m_textDocument.setTextWidth(rect.width());
+}
+
+void cSplashScreen::setProgress(int value)
+{
+	m_iProgress		= value;
+	update();
+}
diff --git a/csplashscreen.h b/csplashscreen.h
new file mode 100644
index 0000000..0ebe29b
--- /dev/null
+++ b/csplashscreen.h
@@ -0,0 +1,78 @@
+/*!
+ \file csplashscreen.h
+
+*/
+
+#ifndef CSPLASHSCREEN_H
+#define CSPLASHSCREEN_H
+
+
+#include <QSplashScreen>
+#include <QPainter>
+#include <QTextDocument>
+
+
+/*!
+ \brief
+
+ \class cSplashScreen csplashscreen.h "csplashscreen.h"
+*/
+class cSplashScreen : public QSplashScreen
+{
+public:
+	cSplashScreen(const QPixmap& pixmap, QFont &font);
+
+	/*!
+	 \brief
+
+	 \fn drawContents
+	 \param painter
+	*/
+	virtual void	drawContents(QPainter *painter);
+	/*!
+	 \brief
+
+	 \fn showStatusMessage
+	 \param message
+	*/
+	void			showStatusMessage(const QString &message);
+	/*!
+	 \brief
+
+	 \fn addStatusMessage
+	 \param message
+	*/
+	void			addStatusMessage(const QString &message);
+	/*!
+	 \brief
+
+	 \fn setMessageRect
+	 \param rect
+	*/
+	void			setMessageRect(QRect rect);
+
+	/*!
+	 \brief
+
+	 \fn setMax
+	 \param max
+	*/
+	void			setMax(qint32 max);
+
+private:
+	QTextDocument	m_textDocument;					/*!< TODO: describe */
+	QString			m_szMessage;					/*!< TODO: describe */
+	QRect			m_rect;							/*!< TODO: describe */
+	qint32			m_iMax;							/*!< TODO: describe */
+	qint32			m_iProgress;					/*!< TODO: describe */
+public slots:
+	/*!
+	 \brief
+
+	 \fn setProgress
+	 \param value
+	*/
+	void			setProgress(int value);
+};
+
+#endif // CSPLASHSCREEN_H
diff --git a/cstorage.cpp b/cstorage.cpp
new file mode 100644
index 0000000..5d559af
--- /dev/null
+++ b/cstorage.cpp
@@ -0,0 +1,325 @@
+#include "cstorage.h"
+
+#include <QSqlQuery>
+#include <QSqlError>
+
+#include <QStandardItem>
+
+#include "common.h"
+
+#include <QDebug>
+
+
+bool sortAsc(cStorage* &v1, cStorage* &v2)
+{
+	return(v1->name() < v2->name());
+}
+
+
+cStorage::cStorage(cDatabase* db, qint32 id, QObject *parent) :
+	QObject(parent),
+	m_db(db),
+	m_changed(false),
+	m_id(id),
+	m_storageCategory(nullptr),
+	m_name(""),
+	m_description(""),
+	m_item(nullptr)
+{
+}
+
+cStorage::cStorage(cStorage* storage)
+{
+	set(storage);
+}
+
+void cStorage::set(cStorage* storage)
+{
+	m_db				= storage->db();
+	m_id				= storage->id();
+	m_storageCategory	= storage->storageCategory();
+	m_name				= storage->name();
+	m_description		= storage->description();
+}
+
+void cStorage::setID(const qint32& id)
+{
+	m_id	= id;
+	m_changed	= true;
+	emit idChanged(id);
+	emit storageChanged(this);
+}
+
+qint32 cStorage::id()
+{
+	return(m_id);
+}
+
+void cStorage::setStorageCategory(cStorageCategory* storageCategory)
+{
+	m_storageCategory	= storageCategory;
+	m_changed	= true;
+	emit storageCategoryChanged(storageCategory);
+	emit storageChanged(this);
+}
+
+cStorageCategory* cStorage::storageCategory()
+{
+	return(m_storageCategory);
+}
+
+void cStorage::setName(const QString& name)
+{
+	m_name	= name;
+	m_changed	= true;
+	emit nameChanged(name);
+	emit storageChanged(this);
+}
+
+QString cStorage::name()
+{
+	return(m_name);
+}
+
+void cStorage::setDescription(const QString& description)
+{
+	m_description	= description;
+	m_changed	= true;
+	emit descriptionChanged(description);
+	emit storageChanged(this);
+}
+
+QString cStorage::description()
+{
+	return(m_description);
+}
+
+void cStorage::setItem(QStandardItem* item)
+{
+	m_item	= item;
+}
+
+QStandardItem* cStorage::item()
+{
+	return(m_item);
+}
+
+bool cStorage::save()
+{
+	if(!m_changed)
+		return(true);
+
+	QSqlQuery	query;
+
+	if(m_id == -1)
+		query.prepare("INSERT INTO storage (storageCategory, name, description) VALUES (:storageCategory, :name, :description);");
+	else
+		query.prepare("UPDATE storage SET storageCategory=:storageCategory, name=:name, description=:description WHERE id=:id;");
+
+	query.bindValue(":id", m_id);
+	query.bindValue(":storageCategory", m_storageCategory->id());
+	query.bindValue(":name", m_name);
+	query.bindValue(":description", m_description);
+
+	if(!query.exec())
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	if(m_id == -1)
+	{
+		if(!query.exec("SELECT MAX(id) MAXID FROM storage;"))
+		{
+			myDebug << query.lastError().text();
+			return(false);
+		}
+
+		query.first();
+		m_id = query.value("MAXID").toInt();
+	}
+	m_changed	= false;
+	return(true);
+}
+
+void cStorage::clearSave()
+{
+	m_changed	= false;
+}
+
+bool cStorage::remove()
+{
+	QSqlQuery	query;
+
+	query.prepare("DELETE FROM storage WHERE id=:id;");
+	query.bindValue(":id", m_id);
+
+	if(!query.exec())
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	return(true);
+}
+
+cDatabase* cStorage::db()
+{
+	return(m_db);
+}
+
+cStorageList::cStorageList(cDatabase* db, cStorageCategoryList* storageCategoryList, QObject* parent) :
+	QObject(parent),
+	m_db(db),
+	m_storageCategoryList(storageCategoryList)
+{
+}
+
+bool cStorageList::load()
+{
+	if(!m_db->db().isOpen())
+		return(false);
+
+	QString		sql	= QString("SELECT   id, "
+							  "         storage_category_id, "
+							  "         name, "
+							  "         description "
+							  "FROM     storage "
+							  "ORDER BY name, "
+							  "         id;");
+	QSqlQuery	query(m_db->db());
+
+	query.prepare(sql);
+
+	if(!query.exec())
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	while(query.next())
+	{
+		cStorage*	lpStorage	= new cStorage(m_db, query.value("id").toInt());
+		cStorageCategory*	storageCatgegory	= m_storageCategoryList->find(query.value("storage_category_id").toInt());
+		lpStorage->setStorageCategory(storageCatgegory);
+		lpStorage->setName(query.value("name").toString());
+		lpStorage->setDescription(query.value("description").toString());
+		storageCatgegory->addStorage(lpStorage);
+
+		add(lpStorage);
+	}
+
+	sort();
+
+	return(true);
+}
+
+cStorage* cStorageList::add(const qint32& id)
+{
+	cStorage*	lpNew	= find(id);
+
+	if(!lpNew)
+	{
+		lpNew	= new cStorage(m_db, id);
+		append(lpNew);
+		emit storageAdded(lpNew);
+	}
+
+	return(lpNew);
+}
+
+cStorage* cStorageList::add(const QString& name)
+{
+	cStorage*	lpNew	= new cStorage(m_db);
+	lpNew->setName(name);
+	append(lpNew);
+	emit storageAdded(lpNew);
+
+	return(lpNew);
+}
+
+void cStorageList::add(cStorage* storage)
+{
+	append(storage);
+}
+
+bool cStorageList::remove(const qint32& id)
+{
+	cStorage*	storage	= find(id);
+	if(!storage)
+		return(false);
+
+	if(!storage->remove())
+		return(false);
+
+	if(!removeOne(storage))
+		return(false);
+
+	emit storageRemoved(storage);
+
+	return(true);
+}
+
+cStorage* cStorageList::find(const qint32& id)
+{
+	for(int i = 0;i < count();i++)
+	{
+		if(at(i)->id() == id)
+			return(at(i));
+	}
+
+	return(nullptr);
+}
+
+cStorage* cStorageList::find(const QString& name)
+{
+	for(int i = 0;i < count();i++)
+	{
+		if(at(i)->name() == name)
+			return(at(i));
+	}
+
+	return(nullptr);
+}
+
+void cStorageList::sort()
+{
+	std::sort(begin(), end(), sortAsc);
+}
+
+bool cStorageList::fillList()
+{
+	if(!count())
+		return(true);
+
+	QStandardItem	i;
+	QFont			font	= i.font();
+	font.setItalic(true);
+	font.setBold(true);
+
+	for(int i = 0;i < count();i++)
+	{
+		QStandardItem*	item	= new QStandardItem;
+		at(i)->setItem(item);
+		item->setText(at(i)->name());
+		item->setData(QVariant::fromValue(at(i)), ITEM_STORAGE_DATA);
+		item->setFont(font);
+
+		at(i)->storageCategory()->item()->appendRow(item);
+	}
+
+	return(true);
+}
+
+bool cStorageList::save()
+{
+	bool	ret	= true;
+
+	for(int i = 0;i < count();i++)
+	{
+		if(!at(i)->save())
+			ret	= false;
+	}
+
+	return(ret);
+}
diff --git a/cstorage.h b/cstorage.h
new file mode 100644
index 0000000..3a00f98
--- /dev/null
+++ b/cstorage.h
@@ -0,0 +1,92 @@
+#ifndef CSTORAGE_H
+#define CSTORAGE_H
+
+
+#include "cdatabase.h"
+#include "cstoragecategory.h"
+
+#include <QMetaType>
+#include <QList>
+#include <QObject>
+
+#include <QStandardItem>
+#include <QStandardItemModel>
+
+
+class cStorage : public QObject
+{
+	Q_OBJECT
+public:
+	explicit cStorage(cDatabase* db, qint32 id = -1, QObject *parent = nullptr);
+	cStorage(cStorage* storage);
+
+	void					set(cStorage* storage);
+
+	void					setID(const qint32& id);
+	qint32					id();
+
+	void					setStorageCategory(cStorageCategory* storageCategory);
+	cStorageCategory*		storageCategory();
+
+	void					setName(const QString& name);
+	QString					name();
+
+	void					setDescription(const QString& description);
+	QString					description();
+
+	void					setItem(QStandardItem* item);
+	QStandardItem*			item();
+
+	bool					save();
+	void					clearSave();
+	bool					remove();
+
+	cDatabase*				db();
+private:
+	cDatabase*				m_db;
+	bool					m_changed;
+	qint32					m_id;
+	cStorageCategory*		m_storageCategory;
+	QString					m_name;
+	QString					m_description;
+	QStandardItem*			m_item;
+signals:
+	void					storageChanged(cStorage* storage);
+	void					idChanged(const qint32& id);
+	void					storageCategoryChanged(cStorageCategory* storageCategory);
+	void					nameChanged(const QString& name);
+	void					descriptionChanged(const QString& description);
+};
+
+Q_DECLARE_METATYPE(cStorage*)
+
+class cStorageList : public QObject, public QList<cStorage*>
+{
+	Q_OBJECT
+
+public:
+	cStorageList(cDatabase* db, cStorageCategoryList* storageCategoryList, QObject* parent = nullptr);
+
+	bool					load();
+	cStorage*				add(const qint32& id);
+	cStorage*				add(const QString& name);
+	void					add(cStorage* storage);
+	bool					remove(const qint32& id);
+	cStorage*				find(const qint32& id);
+	cStorage*				find(const QString& name);
+
+	void					sort();
+
+	bool					fillList();
+
+	bool					save();
+private:
+	cDatabase*				m_db;
+	cStorageCategoryList*	m_storageCategoryList;
+
+signals:
+	void					storageAdded(cStorage* storage);
+	void					storageRemoved(cStorage* storage);
+};
+
+#endif // CSTORAGE_H
diff --git a/cstoragecategory.cpp b/cstoragecategory.cpp
new file mode 100644
index 0000000..3874245
--- /dev/null
+++ b/cstoragecategory.cpp
@@ -0,0 +1,385 @@
+#include "cstoragecategory.h"
+#include "cstorage.h"
+
+#include <QSqlQuery>
+#include <QSqlError>
+
+#include <QStandardItem>
+
+#include "common.h"
+
+#include <QDebug>
+
+
+bool sortAsc(cStorageCategory* &v1, cStorageCategory* &v2)
+{
+	return(v1->name() < v2->name());
+}
+
+
+cStorageCategory::cStorageCategory(cDatabase* db, qint32 id, QObject* parent) :
+	QObject(parent),
+	m_db(db),
+	m_changed(false),
+	m_id(id),
+	m_parent(-1),
+	m_name(""),
+	m_description(""),
+	m_parentCategory(nullptr),
+	m_list(nullptr),
+	m_childList(new cStorageCategoryList(nullptr)),
+	m_storageList(new cStorageList(db, nullptr, nullptr)),
+	m_item(nullptr)
+{
+}
+
+cStorageCategory::cStorageCategory(cStorageCategory* storageCategory)
+{
+	set(storageCategory);
+}
+
+void cStorageCategory::set(cStorageCategory* storageCategory)
+{
+	m_db			= storageCategory->db();
+	m_id			= storageCategory->id();
+	m_parent		= storageCategory->parent();
+	m_name			= storageCategory->name();
+	m_description	= storageCategory->description();
+}
+
+void cStorageCategory::setID(const qint32& id)
+{
+	m_id		= id;
+	m_changed	= true;
+	emit idChanged(id);
+	emit storageCategoryChanged(this);
+}
+
+qint32 cStorageCategory::id()
+{
+	return(m_id);
+}
+
+void cStorageCategory::setParent(const qint32& parent)
+{
+	m_parent	= parent;
+	m_changed	= true;
+	emit parentChanged(parent);
+	emit storageCategoryChanged(this);
+}
+
+qint32 cStorageCategory::parent()
+{
+	return(m_parent);
+}
+
+void cStorageCategory::addStorage(cStorage* storage)
+{
+	m_storageList->add(storage);
+}
+
+cStorageList* cStorageCategory::storageList()
+{
+	return(m_storageList);
+}
+
+void cStorageCategory::setName(const QString& name)
+{
+	m_name		= name;
+	m_changed	= true;
+	emit nameChanged(name);
+	emit storageCategoryChanged(this);
+}
+
+QString cStorageCategory::name()
+{
+	return(m_name);
+}
+
+void cStorageCategory::setDescription(const QString &description)
+{
+	m_description	= description;
+	m_changed		= true;
+	emit descriptionChanged(description);
+	emit storageCategoryChanged(this);
+}
+
+QString cStorageCategory::description()
+{
+	return(m_description);
+}
+
+void cStorageCategory::setParentCategory(cStorageCategory* parentCategory)
+{
+	m_parentCategory	= parentCategory;
+}
+
+cStorageCategory* cStorageCategory::parentCategory()
+{
+	return(m_parentCategory);
+}
+
+void cStorageCategory::setItem(QStandardItem* item)
+{
+	m_item		= item;
+}
+
+QStandardItem* cStorageCategory::item()
+{
+	return(m_item);
+}
+
+cStorageCategoryList* cStorageCategory::childList()
+{
+    return(m_childList);
+}
+
+cDatabase* cStorageCategory::db()
+{
+    return(m_db);
+}
+
+bool cStorageCategory::save()
+{
+	if(!m_changed)
+		return(true);
+
+	QSqlQuery	query;
+
+	if(m_id == -1)
+		query.prepare("INSERT INTO storage_category (parent, name, description) VALUES (:parent, :name, :description);");
+	else
+		query.prepare("UPDATE storage_category SET parent=:parent, name=:name, description=:description WHERE id=:id;");
+
+	query.bindValue(":id", m_id);
+	query.bindValue(":parent", (m_parent==-1)?QVariant(QVariant::Int):m_parent);
+	query.bindValue(":name", m_name);
+	query.bindValue(":description", m_description);
+
+	if(!query.exec())
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	if(m_id == -1)
+	{
+		if(!query.exec("SELECT MAX(id) MAXID FROM storage_category;"))
+		{
+			myDebug << query.lastError().text();
+			return(false);
+		}
+
+		query.first();
+		m_id = query.value("MAXID").toInt();
+	}
+	m_changed	= false;
+	return(true);
+}
+
+bool cStorageCategory::remove()
+{
+	QSqlQuery	query;
+
+	query.prepare("DELETE FROM storage_category WHERE id=:id;");
+	query.bindValue(":id", m_id);
+
+	if(!query.exec())
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	return(true);
+}
+
+void cStorageCategory::clearSave()
+{
+	m_changed	= false;
+}
+
+cStorageCategoryList::cStorageCategoryList(cDatabase* db, QObject* parent) :
+	QObject(parent),
+	m_db(db)
+{
+}
+
+bool cStorageCategoryList::load()
+{
+	if(!m_db->db().isOpen())
+		return(false);
+
+	QString		sql	= QString("SELECT   id, "
+							  "         parent, "
+							  "         name, "
+							  "         description "
+							  "FROM     storage_category "
+							  "ORDER BY parent, "
+							  "         id;");
+	QSqlQuery	query(m_db->db());
+
+	query.prepare(sql);
+
+	if(!query.exec())
+	{
+		myDebug << query.lastError().text();
+		return(false);
+	}
+
+	while(query.next())
+	{
+		cStorageCategory*	lpCategory	= new cStorageCategory(m_db, query.value("id").toInt());
+		if(query.value("parent").isNull())
+			lpCategory->setParent(-1);
+		else
+			lpCategory->setParent(query.value("parent").toInt());
+		lpCategory->setName(query.value("name").toString());
+		lpCategory->setDescription(query.value("description").toString());
+
+		cStorageCategory*	lpParent	= find(lpCategory->parent());
+
+		if(lpParent)
+		{
+			lpCategory->setParentCategory(lpParent);
+			lpParent->childList()->add(lpCategory);
+		}
+		else
+			add(lpCategory);
+	}
+
+	sort();
+
+	return(true);
+}
+
+cStorageCategory* cStorageCategoryList::add(const qint32& id)
+{
+	cStorageCategory*	lpNew	= find(id);
+
+	if(!lpNew)
+	{
+		lpNew	= new cStorageCategory(m_db, id);
+		append(lpNew);
+		emit storageCategoryAdded(lpNew);
+	}
+
+	return(lpNew);
+}
+
+cStorageCategory* cStorageCategoryList::add(const QString& name)
+{
+	cStorageCategory*	lpNew	= new cStorageCategory(m_db);
+	lpNew->setName(name);
+	append(lpNew);
+	emit storageCategoryAdded(lpNew);
+
+	return(lpNew);
+}
+
+void cStorageCategoryList::add(cStorageCategory* storageCategory)
+{
+	append(storageCategory);
+}
+
+bool cStorageCategoryList::remove(const qint32& id)
+{
+	cStorageCategory*	storageCategory	= find(id);
+	if(!storageCategory)
+		return(false);
+
+	if(!storageCategory->remove())
+		return(false);
+
+	if(!removeOne(storageCategory))
+		return(false);
+
+	emit storageCategoryRemoved(storageCategory);
+
+	return(true);
+}
+
+cStorageCategory* cStorageCategoryList::find(const qint32& id)
+{
+	for(int i = 0;i < count();i++)
+	{
+		if(at(i)->id() == id)
+			return(at(i));
+	}
+
+	cStorageCategory*	category;
+	for(int i = 0;i < count();i++)
+	{
+		category	= at(i)->childList()->find(id);
+		if(category)
+			return(category);
+	}
+
+	return(nullptr);
+}
+
+cStorageCategory* cStorageCategoryList::find(const QString& name)
+{
+	for(int i = 0;i < count();i++)
+	{
+		if(at(i)->name() == name)
+			return(at(i));
+	}
+
+	cStorageCategory*	category;
+	for(int i = 0;i < count();i++)
+	{
+		category	= at(i)->childList()->find(name);
+		if(category)
+			return(category);
+	}
+
+	return(nullptr);
+}
+
+void cStorageCategoryList::sort()
+{
+	std::sort(begin(), end(), sortAsc);
+
+	for(int i = 0;i < count();i++)
+		at(i)->childList()->sort();
+}
+
+bool cStorageCategoryList::fillList(QStandardItemModel* model, QStandardItem* parent)
+{
+	if(!parent)
+		model->clear();
+
+	if(!count())
+		return(true);
+
+	for(int i = 0;i < count();i++)
+	{
+		QStandardItem*	item	= new QStandardItem;
+		at(i)->setItem(item);
+		item->setText(at(i)->name());
+		item->setData(QVariant::fromValue(at(i)), ITEM_STORAGE_CATEGORY_DATA);
+
+		if(parent)
+			parent->appendRow(item);
+		else
+			model->appendRow(item);
+
+		if(at(i)->childList())
+			at(i)->childList()->fillList(model, item);
+	}
+
+	return(true);
+}
+
+bool cStorageCategoryList::save()
+{
+	bool	ret	= true;
+
+	for(int i = 0;i < count();i++)
+	{
+		if(!at(i)->save())
+			ret	= false;
+	}
+
+	return(ret);
+}
diff --git a/cstoragecategory.h b/cstoragecategory.h
new file mode 100644
index 0000000..faa1bba
--- /dev/null
+++ b/cstoragecategory.h
@@ -0,0 +1,109 @@
+#ifndef CSTORAGECATEGORY_H
+#define CSTORAGECATEGORY_H
+
+
+#include "cdatabase.h"
+
+#include <QMetaType>
+#include <QList>
+#include <QObject>
+
+#include <QStandardItem>
+#include <QStandardItemModel>
+
+
+class cStorageCategoryList;
+class cStorage;
+class cStorageList;
+
+class cStorageCategory : public QObject
+{
+	Q_OBJECT
+public:
+	explicit cStorageCategory(cDatabase* db, qint32 id = -1, QObject *parent = nullptr);
+	cStorageCategory(cStorageCategory* storageCategory);
+
+	void					set(cStorageCategory* storageCategory);
+
+	void					setID(const qint32& id);
+	qint32					id();
+
+	void					setParent(const qint32& parent);
+	qint32					parent();
+
+	void					setName(const QString& name);
+	QString					name();
+
+	void					setDescription(const QString& description);
+	QString					description();
+
+	void					setParentCategory(cStorageCategory* parentCategory);
+	cStorageCategory*		parentCategory();
+
+	void					addStorage(cStorage* storage);
+	cStorageList*			storageList();
+
+	void					setItem(QStandardItem* item);
+	QStandardItem*			item();
+
+	bool					save();
+	void					clearSave();
+	bool					remove();
+
+	void					setList(cStorageCategoryList* list);
+	cStorageCategoryList*	list();
+
+	cStorageCategoryList*	childList();
+
+	cDatabase*				db();
+private:
+	cDatabase*				m_db;
+	bool					m_changed;
+	qint32					m_id;
+	qint32					m_parent;
+	QString					m_name;
+	QString					m_description;
+	cStorageCategory*		m_parentCategory;
+	cStorageCategoryList*	m_list;
+	cStorageCategoryList*	m_childList;
+	cStorageList*			m_storageList;
+	QStandardItem*			m_item;
+signals:
+	void					storageCategoryChanged(cStorageCategory* storageCategory);
+	void					idChanged(const qint32& id);
+	void					parentChanged(const qint32& parent);
+	void					nameChanged(const QString& name);
+	void					descriptionChanged(const QString& description);
+};
+
+Q_DECLARE_METATYPE(cStorageCategory*)
+
+class cStorageCategoryList : public QObject, public QList<cStorageCategory*>
+{
+	Q_OBJECT
+
+public:
+	cStorageCategoryList(cDatabase* db, QObject* parent = nullptr);
+
+	bool					load();
+	cStorageCategory*		add(const qint32& id);
+	cStorageCategory*		add(const QString& name);
+	void					add(cStorageCategory* storageCategory);
+	bool					remove(const qint32& id);
+	cStorageCategory*		find(const qint32& id);
+	cStorageCategory*		find(const QString& name);
+
+	void					sort();
+
+	bool					fillList(QStandardItemModel* model, QStandardItem* parent = 0);
+
+	bool					save();
+private:
+	cDatabase*				m_db;
+
+signals:
+	void					storageCategoryAdded(cStorageCategory* storageCategory);
+	void					storageCategoryRemoved(cStorageCategory* storageCategory);
+};
+
+#endif // CSTORAGECATEGORY_H
diff --git a/cwidget.cpp b/cwidget.cpp
new file mode 100644
index 0000000..575a2e3
--- /dev/null
+++ b/cwidget.cpp
@@ -0,0 +1,51 @@
+/*!
+ \file cwidget.cpp
+
+*/
+
+#include "cwidget.h"
+
+
+cWidget::cWidget(cManufacturerWindow* parent) :
+	QWidget(parent),
+	m_type(TYPE_manufacturer),
+	m_lpWidget(parent),
+	m_lpWindow(0)
+{
+}
+
+cWidget::cWidget(cDistributorWindow* parent) :
+	QWidget(parent),
+	m_type(TYPE_distributor),
+	m_lpWidget(parent),
+	m_lpWindow(0)
+{
+}
+
+cWidget::cWidget(QWidget* parent) :
+	QWidget(parent),
+	m_type(TYPE_unknown),
+	m_lpWidget(parent),
+	m_lpWindow(0)
+{
+}
+
+void cWidget::setWindow(QMdiSubWindow* lpWindow)
+{
+	m_lpWindow	= lpWindow;
+}
+
+QMdiSubWindow* cWidget::window()
+{
+	return(m_lpWindow);
+}
+
+QWidget* cWidget::widget()
+{
+	return(m_lpWidget);
+}
+
+cWidget::TYPE cWidget::type()
+{
+	return(m_type);
+}
diff --git a/cwidget.h b/cwidget.h
new file mode 100644
index 0000000..9f01903
--- /dev/null
+++ b/cwidget.h
@@ -0,0 +1,55 @@
+#ifndef CWIDGET_H
+#define CWIDGET_H
+
+
+#include "cmanufacturerwindow.h"
+#include "cdistributorwindow.h"
+
+#include <QWidget>
+#include <QMdiSubWindow>
+
+
+/*!
+ \brief
+
+ \class cWidget cwidget.h "cwidget.h"
+*/
+class cWidget : public QWidget
+{
+	Q_OBJECT
+public:
+	/*!
+	 \brief
+
+	 \enum TYPE
+	*/
+	enum TYPE
+	{
+		TYPE_unknown		= 0,
+		TYPE_manufacturer	= 1,
+		TYPE_distributor	= 2,
+		TYPE_storage		= 3,
+		TYPE_part			= 4,
+		TYPE_project		= 5,
+	};
+
+	explicit			cWidget(cManufacturerWindow* parent);
+	explicit			cWidget(cDistributorWindow* parent);
+	explicit			cWidget(QWidget* parent);
+
+	QWidget*			widget();
+
+	void				setWindow(QMdiSubWindow* lpWindow);
+	QMdiSubWindow*		window();
+	TYPE				type();
+signals:
+
+public slots:
+
+private:
+	TYPE				m_type;
+	QWidget*			m_lpWidget;
+	QMdiSubWindow*		m_lpWindow;
+};
+
+#endif // CWIDGET_H
diff --git a/images/splashEmpty.png b/images/splashEmpty.png
new file mode 100644
index 0000000..5329d63
Binary files /dev/null and b/images/splashEmpty.png differ
diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..268eaa5
--- /dev/null
+++ b/main.cpp
@@ -0,0 +1,41 @@
+#include "cmainwindow.h"
+
+#include <QApplication>
+#include <QSettings>
+
+#include "csplashscreen.h"
+
+
+int main(int argc, char *argv[])
+{
+	QApplication a(argc, argv);
+
+	a.setApplicationVersion(APP_VERSION);
+	a.setApplicationDisplayName("partlistManager");
+	a.setOrganizationName("WIN-DESIGN");
+	a.setOrganizationDomain("windesign.at");
+	a.setApplicationName("partlistManager");
+
+	QSettings		settings;
+
+	QPixmap			pixmap(":/images/splash.png");
+	QFont			splashFont;
+	cSplashScreen*	lpSplash	= new cSplashScreen(pixmap, splashFont);
+
+	lpSplash->show();
+	a.processEvents();
+
+	lpSplash->showStatusMessage(QObject::tr("<center>initializing...</denter>"));
+
+	cMainWindow w(lpSplash);
+
+	if(settings.value("main/maximized").toBool())
+		w.showMaximized();
+	else
+		w.show();
+
+	lpSplash->finish(&w);
+	delete lpSplash;
+
+	return a.exec();
+}
diff --git a/partlistManager.pro b/partlistManager.pro
new file mode 100644
index 0000000..ade6911
--- /dev/null
+++ b/partlistManager.pro
@@ -0,0 +1,77 @@
+VERSION = "0.0.1.0"
+
+QMAKE_TARGET_COMPANY = "WIN-DESIGN"
+QMAKE_TARGET_PRODUCT = "partlistManager"
+QMAKE_TARGET_DESCRIPTION = "partlistManager"
+QMAKE_TARGET_COPYRIGHT = "(c) 2019 WIN-DESIGN"
+QMAKE_TARGET_DOMAIN = "windesign.at"
+
+QT       += core gui sql
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+win32-msvc* {
+    contains(QT_ARCH, i386) {
+        message("msvc 32-bit")
+    } else {
+        message("msvc 64-bit")
+    }
+}
+
+win32-g++ {
+    message("mingw")
+}
+
+unix {
+    message("*nix")
+}
+
+CONFIG += c++11
+
+# You can make your code fail to compile if it uses deprecated APIs.
+# In order to do so, uncomment the following line.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+DEFINES += APP_VERSION=\\\"$$VERSION\\\"
+
+SOURCES += \
+    cdatabase.cpp \
+    cdistributor.cpp \
+    cdistributorwindow.cpp \
+    cmanufacturer.cpp \
+    cmanufacturerwindow.cpp \
+    cmdisubwindow.cpp \
+    common.cpp \
+    csplashscreen.cpp \
+    cstorage.cpp \
+    cstoragecategory.cpp \
+    cwidget.cpp \
+    main.cpp \
+    cmainwindow.cpp
+
+HEADERS += \
+    cdatabase.h \
+    cdistributor.h \
+    cdistributorwindow.h \
+    cmainwindow.h \
+    cmanufacturer.h \
+    cmanufacturerwindow.h \
+    cmdisubwindow.h \
+    common.h \
+    csplashscreen.h \
+    cstorage.h \
+    cstoragecategory.h \
+    cwidget.h
+
+FORMS += \
+    cdistributorwindow.ui \
+    cmainwindow.ui \
+    cmanufacturerwindow.ui
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target
+
+RESOURCES += \
+    partlistmanager.qrc
diff --git a/partlistmanager.qrc b/partlistmanager.qrc
new file mode 100644
index 0000000..e77931b
--- /dev/null
+++ b/partlistmanager.qrc
@@ -0,0 +1,659 @@
+<RCC>
+    <qresource prefix="/">
+        <file>images/splashEmpty.png</file>
+    </qresource>
+    <qresource prefix="/icons/TangoMFK">
+        <file alias="16x16/address-book-new.png">themes/tango/16x16/actions/address-book-new.png</file>
+        <file alias="16x16/appointment-new.png">themes/tango/16x16/actions/appointment-new.png</file>
+        <file alias="16x16/bookmark-new.png">themes/tango/16x16/actions/bookmark-new.png</file>
+        <file alias="16x16/contact-new.png">themes/tango/16x16/actions/contact-new.png</file>
+        <file alias="16x16/document-new.png">themes/tango/16x16/actions/document-new.png</file>
+        <file alias="16x16/document-open.png">themes/tango/16x16/actions/document-open.png</file>
+        <file alias="16x16/document-print-preview.png">themes/tango/16x16/actions/document-print-preview.png</file>
+        <file alias="16x16/document-print.png">themes/tango/16x16/actions/document-print.png</file>
+        <file alias="16x16/document-pdf.png">themes/tango/16x16/actions/document-pdf.png</file>
+        <file alias="16x16/document-properties.png">themes/tango/16x16/actions/document-properties.png</file>
+        <file alias="16x16/document-revert.png">themes/tango/16x16/actions/document-revert.png</file>
+        <file alias="16x16/document-save-as.png">themes/tango/16x16/actions/document-save-as.png</file>
+        <file alias="16x16/document-save.png">themes/tango/16x16/actions/document-save.png</file>
+        <file alias="16x16/edit-clear.png">themes/tango/16x16/actions/edit-clear.png</file>
+        <file alias="16x16/edit-copy.png">themes/tango/16x16/actions/edit-copy.png</file>
+        <file alias="16x16/edit-cut.png">themes/tango/16x16/actions/edit-cut.png</file>
+        <file alias="16x16/edit-delete.png">themes/tango/16x16/actions/edit-delete.png</file>
+        <file alias="16x16/edit-find-replace.png">themes/tango/16x16/actions/edit-find-replace.png</file>
+        <file alias="16x16/edit-find.png">themes/tango/16x16/actions/edit-find.png</file>
+        <file alias="16x16/edit-paste.png">themes/tango/16x16/actions/edit-paste.png</file>
+        <file alias="16x16/edit-redo.png">themes/tango/16x16/actions/edit-redo.png</file>
+        <file alias="16x16/edit-select-all.png">themes/tango/16x16/actions/edit-select-all.png</file>
+        <file alias="16x16/edit-undo.png">themes/tango/16x16/actions/edit-undo.png</file>
+        <file alias="16x16/folder-new.png">themes/tango/16x16/actions/folder-new.png</file>
+        <file alias="16x16/format-indent-less.png">themes/tango/16x16/actions/format-indent-less.png</file>
+        <file alias="16x16/format-indent-more.png">themes/tango/16x16/actions/format-indent-more.png</file>
+        <file alias="16x16/format-justify-center.png">themes/tango/16x16/actions/format-justify-center.png</file>
+        <file alias="16x16/format-justify-fill.png">themes/tango/16x16/actions/format-justify-fill.png</file>
+        <file alias="16x16/format-justify-left.png">themes/tango/16x16/actions/format-justify-left.png</file>
+        <file alias="16x16/format-justify-right.png">themes/tango/16x16/actions/format-justify-right.png</file>
+        <file alias="16x16/format-text-bold.png">themes/tango/16x16/actions/format-text-bold.png</file>
+        <file alias="16x16/format-text-italic.png">themes/tango/16x16/actions/format-text-italic.png</file>
+        <file alias="16x16/format-text-strikethrough.png">themes/tango/16x16/actions/format-text-strikethrough.png</file>
+        <file alias="16x16/format-text-underline.png">themes/tango/16x16/actions/format-text-underline.png</file>
+        <file alias="16x16/go-bottom.png">themes/tango/16x16/actions/go-bottom.png</file>
+        <file alias="16x16/go-down.png">themes/tango/16x16/actions/go-down.png</file>
+        <file alias="16x16/go-first.png">themes/tango/16x16/actions/go-first.png</file>
+        <file alias="16x16/go-home.png">themes/tango/16x16/actions/go-home.png</file>
+        <file alias="16x16/go-jump.png">themes/tango/16x16/actions/go-jump.png</file>
+        <file alias="16x16/go-last.png">themes/tango/16x16/actions/go-last.png</file>
+        <file alias="16x16/go-next.png">themes/tango/16x16/actions/go-next.png</file>
+        <file alias="16x16/go-previous.png">themes/tango/16x16/actions/go-previous.png</file>
+        <file alias="16x16/go-top.png">themes/tango/16x16/actions/go-top.png</file>
+        <file alias="16x16/go-up.png">themes/tango/16x16/actions/go-up.png</file>
+        <file alias="16x16/list-add.png">themes/tango/16x16/actions/list-add.png</file>
+        <file alias="16x16/list-remove.png">themes/tango/16x16/actions/list-remove.png</file>
+        <file alias="16x16/mail-forward.png">themes/tango/16x16/actions/mail-forward.png</file>
+        <file alias="16x16/mail-mark-junk.png">themes/tango/16x16/actions/mail-mark-junk.png</file>
+        <file alias="16x16/mail-mark-not-junk.png">themes/tango/16x16/actions/mail-mark-not-junk.png</file>
+        <file alias="16x16/mail-message-new.png">themes/tango/16x16/actions/mail-message-new.png</file>
+        <file alias="16x16/mail-reply-all.png">themes/tango/16x16/actions/mail-reply-all.png</file>
+        <file alias="16x16/mail-reply-sender.png">themes/tango/16x16/actions/mail-reply-sender.png</file>
+        <file alias="16x16/mail-send-receive.png">themes/tango/16x16/actions/mail-send-receive.png</file>
+        <file alias="16x16/media-eject.png">themes/tango/16x16/actions/media-eject.png</file>
+        <file alias="16x16/media-playback-pause.png">themes/tango/16x16/actions/media-playback-pause.png</file>
+        <file alias="16x16/media-playback-start.png">themes/tango/16x16/actions/media-playback-start.png</file>
+        <file alias="16x16/media-playback-stop.png">themes/tango/16x16/actions/media-playback-stop.png</file>
+        <file alias="16x16/media-record.png">themes/tango/16x16/actions/media-record.png</file>
+        <file alias="16x16/media-seek-backward.png">themes/tango/16x16/actions/media-seek-backward.png</file>
+        <file alias="16x16/media-seek-forward.png">themes/tango/16x16/actions/media-seek-forward.png</file>
+        <file alias="16x16/media-skip-backward.png">themes/tango/16x16/actions/media-skip-backward.png</file>
+        <file alias="16x16/media-skip-forward.png">themes/tango/16x16/actions/media-skip-forward.png</file>
+        <file alias="16x16/process-stop.png">themes/tango/16x16/actions/process-stop.png</file>
+        <file alias="16x16/system-lock-screen.png">themes/tango/16x16/actions/system-lock-screen.png</file>
+        <file alias="16x16/system-log-out.png">themes/tango/16x16/actions/system-log-out.png</file>
+        <file alias="16x16/system-search.png">themes/tango/16x16/actions/system-search.png</file>
+        <file alias="16x16/system-shutdown.png">themes/tango/16x16/actions/system-shutdown.png</file>
+        <file alias="16x16/tab-new.png">themes/tango/16x16/actions/tab-new.png</file>
+        <file alias="16x16/view-fullscreen.png">themes/tango/16x16/actions/view-fullscreen.png</file>
+        <file alias="16x16/view-refresh.png">themes/tango/16x16/actions/view-refresh.png</file>
+        <file alias="16x16/window-new.png">themes/tango/16x16/actions/window-new.png</file>
+        <file alias="16x16/process-working.png">themes/tango/16x16/animations/process-working.png</file>
+        <file alias="16x16/accessories-calculator.png">themes/tango/16x16/apps/accessories-calculator.png</file>
+        <file alias="16x16/accessories-character-map.png">themes/tango/16x16/apps/accessories-character-map.png</file>
+        <file alias="16x16/accessories-text-editor.png">themes/tango/16x16/apps/accessories-text-editor.png</file>
+        <file alias="16x16/help-browser.png">themes/tango/16x16/apps/help-browser.png</file>
+        <file alias="16x16/internet-group-chat.png">themes/tango/16x16/apps/internet-group-chat.png</file>
+        <file alias="16x16/internet-mail.png">themes/tango/16x16/apps/internet-mail.png</file>
+        <file alias="16x16/internet-news-reader.png">themes/tango/16x16/apps/internet-news-reader.png</file>
+        <file alias="16x16/internet-web-browser.png">themes/tango/16x16/apps/internet-web-browser.png</file>
+        <file alias="16x16/office-calendar.png">themes/tango/16x16/apps/office-calendar.png</file>
+        <file alias="16x16/preferences-desktop-accessibility.png">themes/tango/16x16/apps/preferences-desktop-accessibility.png</file>
+        <file alias="16x16/preferences-desktop-assistive-technology.png">themes/tango/16x16/apps/preferences-desktop-assistive-technology.png</file>
+        <file alias="16x16/preferences-desktop-font.png">themes/tango/16x16/apps/preferences-desktop-font.png</file>
+        <file alias="16x16/preferences-desktop-keyboard-shortcuts.png">themes/tango/16x16/apps/preferences-desktop-keyboard-shortcuts.png</file>
+        <file alias="16x16/preferences-desktop-locale.png">themes/tango/16x16/apps/preferences-desktop-locale.png</file>
+        <file alias="16x16/preferences-desktop-multimedia.png">themes/tango/16x16/apps/preferences-desktop-multimedia.png</file>
+        <file alias="16x16/preferences-desktop-remote-desktop.png">themes/tango/16x16/apps/preferences-desktop-remote-desktop.png</file>
+        <file alias="16x16/preferences-desktop-screensaver.png">themes/tango/16x16/apps/preferences-desktop-screensaver.png</file>
+        <file alias="16x16/preferences-desktop-theme.png">themes/tango/16x16/apps/preferences-desktop-theme.png</file>
+        <file alias="16x16/preferences-desktop-wallpaper.png">themes/tango/16x16/apps/preferences-desktop-wallpaper.png</file>
+        <file alias="16x16/preferences-system-network-proxy.png">themes/tango/16x16/apps/preferences-system-network-proxy.png</file>
+        <file alias="16x16/preferences-system-session.png">themes/tango/16x16/apps/preferences-system-session.png</file>
+        <file alias="16x16/preferences-system-windows.png">themes/tango/16x16/apps/preferences-system-windows.png</file>
+        <file alias="16x16/system-file-manager.png">themes/tango/16x16/apps/system-file-manager.png</file>
+        <file alias="16x16/system-installer.png">themes/tango/16x16/apps/system-installer.png</file>
+        <file alias="16x16/system-software-update.png">themes/tango/16x16/apps/system-software-update.png</file>
+        <file alias="16x16/system-users.png">themes/tango/16x16/apps/system-users.png</file>
+        <file alias="16x16/utilities-system-monitor.png">themes/tango/16x16/apps/utilities-system-monitor.png</file>
+        <file alias="16x16/utilities-terminal.png">themes/tango/16x16/apps/utilities-terminal.png</file>
+        <file alias="16x16/applications-accessories.png">themes/tango/16x16/categories/applications-accessories.png</file>
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+        <file alias="32x32/process-working.png">themes/tango/32x32/animations/process-working.png</file>
+        <file alias="32x32/accessories-calculator.png">themes/tango/32x32/apps/accessories-calculator.png</file>
+        <file alias="32x32/accessories-character-map.png">themes/tango/32x32/apps/accessories-character-map.png</file>
+        <file alias="32x32/accessories-text-editor.png">themes/tango/32x32/apps/accessories-text-editor.png</file>
+        <file alias="32x32/help-browser.png">themes/tango/32x32/apps/help-browser.png</file>
+        <file alias="32x32/internet-group-chat.png">themes/tango/32x32/apps/internet-group-chat.png</file>
+        <file alias="32x32/internet-mail.png">themes/tango/32x32/apps/internet-mail.png</file>
+        <file alias="32x32/internet-news-reader.png">themes/tango/32x32/apps/internet-news-reader.png</file>
+        <file alias="32x32/internet-web-browser.png">themes/tango/32x32/apps/internet-web-browser.png</file>
+        <file alias="32x32/office-calendar.png">themes/tango/32x32/apps/office-calendar.png</file>
+        <file alias="32x32/preferences-desktop-accessibility.png">themes/tango/32x32/apps/preferences-desktop-accessibility.png</file>
+        <file alias="32x32/preferences-desktop-assistive-technology.png">themes/tango/32x32/apps/preferences-desktop-assistive-technology.png</file>
+        <file alias="32x32/preferences-desktop-font.png">themes/tango/32x32/apps/preferences-desktop-font.png</file>
+        <file alias="32x32/preferences-desktop-keyboard-shortcuts.png">themes/tango/32x32/apps/preferences-desktop-keyboard-shortcuts.png</file>
+        <file alias="32x32/preferences-desktop-locale.png">themes/tango/32x32/apps/preferences-desktop-locale.png</file>
+        <file alias="32x32/preferences-desktop-multimedia.png">themes/tango/32x32/apps/preferences-desktop-multimedia.png</file>
+        <file alias="32x32/preferences-desktop-remote-desktop.png">themes/tango/32x32/apps/preferences-desktop-remote-desktop.png</file>
+        <file alias="32x32/preferences-desktop-screensaver.png">themes/tango/32x32/apps/preferences-desktop-screensaver.png</file>
+        <file alias="32x32/preferences-desktop-theme.png">themes/tango/32x32/apps/preferences-desktop-theme.png</file>
+        <file alias="32x32/preferences-desktop-wallpaper.png">themes/tango/32x32/apps/preferences-desktop-wallpaper.png</file>
+        <file alias="32x32/preferences-system-network-proxy.png">themes/tango/32x32/apps/preferences-system-network-proxy.png</file>
+        <file alias="32x32/preferences-system-session.png">themes/tango/32x32/apps/preferences-system-session.png</file>
+        <file alias="32x32/preferences-system-windows.png">themes/tango/32x32/apps/preferences-system-windows.png</file>
+        <file alias="32x32/system-file-manager.png">themes/tango/32x32/apps/system-file-manager.png</file>
+        <file alias="32x32/system-installer.png">themes/tango/32x32/apps/system-installer.png</file>
+        <file alias="32x32/system-software-update.png">themes/tango/32x32/apps/system-software-update.png</file>
+        <file alias="32x32/system-users.png">themes/tango/32x32/apps/system-users.png</file>
+        <file alias="32x32/utilities-system-monitor.png">themes/tango/32x32/apps/utilities-system-monitor.png</file>
+        <file alias="32x32/utilities-terminal.png">themes/tango/32x32/apps/utilities-terminal.png</file>
+        <file alias="32x32/applications-accessories.png">themes/tango/32x32/categories/applications-accessories.png</file>
+        <file alias="32x32/applications-development.png">themes/tango/32x32/categories/applications-development.png</file>
+        <file alias="32x32/applications-games.png">themes/tango/32x32/categories/applications-games.png</file>
+        <file alias="32x32/applications-graphics.png">themes/tango/32x32/categories/applications-graphics.png</file>
+        <file alias="32x32/applications-internet.png">themes/tango/32x32/categories/applications-internet.png</file>
+        <file alias="32x32/applications-multimedia.png">themes/tango/32x32/categories/applications-multimedia.png</file>
+        <file alias="32x32/applications-office.png">themes/tango/32x32/categories/applications-office.png</file>
+        <file alias="32x32/applications-other.png">themes/tango/32x32/categories/applications-other.png</file>
+        <file alias="32x32/applications-system.png">themes/tango/32x32/categories/applications-system.png</file>
+        <file alias="32x32/preferences-desktop-peripherals.png">themes/tango/32x32/categories/preferences-desktop-peripherals.png</file>
+        <file alias="32x32/preferences-desktop.png">themes/tango/32x32/categories/preferences-desktop.png</file>
+        <file alias="32x32/preferences-system.png">themes/tango/32x32/categories/preferences-system.png</file>
+        <file alias="32x32/audio-card.png">themes/tango/32x32/devices/audio-card.png</file>
+        <file alias="32x32/audio-input-microphone.png">themes/tango/32x32/devices/audio-input-microphone.png</file>
+        <file alias="32x32/battery.png">themes/tango/32x32/devices/battery.png</file>
+        <file alias="32x32/camera-photo.png">themes/tango/32x32/devices/camera-photo.png</file>
+        <file alias="32x32/camera-video.png">themes/tango/32x32/devices/camera-video.png</file>
+        <file alias="32x32/computer.png">themes/tango/32x32/devices/computer.png</file>
+        <file alias="32x32/drive-harddisk.png">themes/tango/32x32/devices/drive-harddisk.png</file>
+        <file alias="32x32/drive-optical.png">themes/tango/32x32/devices/drive-optical.png</file>
+        <file alias="32x32/drive-removable-media.png">themes/tango/32x32/devices/drive-removable-media.png</file>
+        <file alias="32x32/input-gaming.png">themes/tango/32x32/devices/input-gaming.png</file>
+        <file alias="32x32/input-keyboard.png">themes/tango/32x32/devices/input-keyboard.png</file>
+        <file alias="32x32/input-mouse.png">themes/tango/32x32/devices/input-mouse.png</file>
+        <file alias="32x32/media-flash.png">themes/tango/32x32/devices/media-flash.png</file>
+        <file alias="32x32/media-floppy.png">themes/tango/32x32/devices/media-floppy.png</file>
+        <file alias="32x32/media-optical.png">themes/tango/32x32/devices/media-optical.png</file>
+        <file alias="32x32/multimedia-player.png">themes/tango/32x32/devices/multimedia-player.png</file>
+        <file alias="32x32/network-wired.png">themes/tango/32x32/devices/network-wired.png</file>
+        <file alias="32x32/network-wireless.png">themes/tango/32x32/devices/network-wireless.png</file>
+        <file alias="32x32/printer.png">themes/tango/32x32/devices/printer.png</file>
+        <file alias="32x32/video-display.png">themes/tango/32x32/devices/video-display.png</file>
+        <file alias="32x32/emblem-favorite.png">themes/tango/32x32/emblems/emblem-favorite.png</file>
+        <file alias="32x32/emblem-important.png">themes/tango/32x32/emblems/emblem-important.png</file>
+        <file alias="32x32/emblem-photos.png">themes/tango/32x32/emblems/emblem-photos.png</file>
+        <file alias="32x32/emblem-readonly.png">themes/tango/32x32/emblems/emblem-readonly.png</file>
+        <file alias="32x32/emblem-symbolic-link.png">themes/tango/32x32/emblems/emblem-symbolic-link.png</file>
+        <file alias="32x32/emblem-system.png">themes/tango/32x32/emblems/emblem-system.png</file>
+        <file alias="32x32/emblem-unreadable.png">themes/tango/32x32/emblems/emblem-unreadable.png</file>
+        <file alias="32x32/face-angel.png">themes/tango/32x32/emotes/face-angel.png</file>
+        <file alias="32x32/face-crying.png">themes/tango/32x32/emotes/face-crying.png</file>
+        <file alias="32x32/face-devilish.png">themes/tango/32x32/emotes/face-devilish.png</file>
+        <file alias="32x32/face-glasses.png">themes/tango/32x32/emotes/face-glasses.png</file>
+        <file alias="32x32/face-grin.png">themes/tango/32x32/emotes/face-grin.png</file>
+        <file alias="32x32/face-kiss.png">themes/tango/32x32/emotes/face-kiss.png</file>
+        <file alias="32x32/face-monkey.png">themes/tango/32x32/emotes/face-monkey.png</file>
+        <file alias="32x32/face-plain.png">themes/tango/32x32/emotes/face-plain.png</file>
+        <file alias="32x32/face-sad.png">themes/tango/32x32/emotes/face-sad.png</file>
+        <file alias="32x32/face-smile-big.png">themes/tango/32x32/emotes/face-smile-big.png</file>
+        <file alias="32x32/face-smile.png">themes/tango/32x32/emotes/face-smile.png</file>
+        <file alias="32x32/face-surprise.png">themes/tango/32x32/emotes/face-surprise.png</file>
+        <file alias="32x32/face-wink.png">themes/tango/32x32/emotes/face-wink.png</file>
+        <file alias="32x32/application-certificate.png">themes/tango/32x32/mimetypes/application-certificate.png</file>
+        <file alias="32x32/application-x-executable.png">themes/tango/32x32/mimetypes/application-x-executable.png</file>
+        <file alias="32x32/audio-x-generic.png">themes/tango/32x32/mimetypes/audio-x-generic.png</file>
+        <file alias="32x32/font-x-generic.png">themes/tango/32x32/mimetypes/font-x-generic.png</file>
+        <file alias="32x32/image-x-generic.png">themes/tango/32x32/mimetypes/image-x-generic.png</file>
+        <file alias="32x32/package-x-generic.png">themes/tango/32x32/mimetypes/package-x-generic.png</file>
+        <file alias="32x32/text-html.png">themes/tango/32x32/mimetypes/text-html.png</file>
+        <file alias="32x32/text-x-generic-template.png">themes/tango/32x32/mimetypes/text-x-generic-template.png</file>
+        <file alias="32x32/text-x-generic.png">themes/tango/32x32/mimetypes/text-x-generic.png</file>
+        <file alias="32x32/text-x-script.png">themes/tango/32x32/mimetypes/text-x-script.png</file>
+        <file alias="32x32/video-x-generic.png">themes/tango/32x32/mimetypes/video-x-generic.png</file>
+        <file alias="32x32/x-office-address-book.png">themes/tango/32x32/mimetypes/x-office-address-book.png</file>
+        <file alias="32x32/x-office-calendar.png">themes/tango/32x32/mimetypes/x-office-calendar.png</file>
+        <file alias="32x32/x-office-document-template.png">themes/tango/32x32/mimetypes/x-office-document-template.png</file>
+        <file alias="32x32/x-office-document.png">themes/tango/32x32/mimetypes/x-office-document.png</file>
+        <file alias="32x32/x-office-drawing-template.png">themes/tango/32x32/mimetypes/x-office-drawing-template.png</file>
+        <file alias="32x32/x-office-drawing.png">themes/tango/32x32/mimetypes/x-office-drawing.png</file>
+        <file alias="32x32/x-office-presentation-template.png">themes/tango/32x32/mimetypes/x-office-presentation-template.png</file>
+        <file alias="32x32/x-office-presentation.png">themes/tango/32x32/mimetypes/x-office-presentation.png</file>
+        <file alias="32x32/x-office-spreadsheet-template.png">themes/tango/32x32/mimetypes/x-office-spreadsheet-template.png</file>
+        <file alias="32x32/x-office-spreadsheet.png">themes/tango/32x32/mimetypes/x-office-spreadsheet.png</file>
+        <file alias="32x32/folder-remote.png">themes/tango/32x32/places/folder-remote.png</file>
+        <file alias="32x32/folder-saved-search.png">themes/tango/32x32/places/folder-saved-search.png</file>
+        <file alias="32x32/folder.png">themes/tango/32x32/places/folder.png</file>
+        <file alias="32x32/network-server.png">themes/tango/32x32/places/network-server.png</file>
+        <file alias="32x32/network-workgroup.png">themes/tango/32x32/places/network-workgroup.png</file>
+        <file alias="32x32/start-here.png">themes/tango/32x32/places/start-here.png</file>
+        <file alias="32x32/user-desktop.png">themes/tango/32x32/places/user-desktop.png</file>
+        <file alias="32x32/user-home.png">themes/tango/32x32/places/user-home.png</file>
+        <file alias="32x32/user-trash.png">themes/tango/32x32/places/user-trash.png</file>
+        <file alias="32x32/audio-volume-high.png">themes/tango/32x32/status/audio-volume-high.png</file>
+        <file alias="32x32/audio-volume-low.png">themes/tango/32x32/status/audio-volume-low.png</file>
+        <file alias="32x32/audio-volume-medium.png">themes/tango/32x32/status/audio-volume-medium.png</file>
+        <file alias="32x32/audio-volume-muted.png">themes/tango/32x32/status/audio-volume-muted.png</file>
+        <file alias="32x32/battery-caution.png">themes/tango/32x32/status/battery-caution.png</file>
+        <file alias="32x32/dialog-error.png">themes/tango/32x32/status/dialog-error.png</file>
+        <file alias="32x32/dialog-information.png">themes/tango/32x32/status/dialog-information.png</file>
+        <file alias="32x32/dialog-warning.png">themes/tango/32x32/status/dialog-warning.png</file>
+        <file alias="32x32/folder-drag-accept.png">themes/tango/32x32/status/folder-drag-accept.png</file>
+        <file alias="32x32/folder-open.png">themes/tango/32x32/status/folder-open.png</file>
+        <file alias="32x32/folder-visiting.png">themes/tango/32x32/status/folder-visiting.png</file>
+        <file alias="32x32/image-loading.png">themes/tango/32x32/status/image-loading.png</file>
+        <file alias="32x32/image-missing.png">themes/tango/32x32/status/image-missing.png</file>
+        <file alias="32x32/mail-attachment.png">themes/tango/32x32/status/mail-attachment.png</file>
+        <file alias="32x32/network-error.png">themes/tango/32x32/status/network-error.png</file>
+        <file alias="32x32/network-idle.png">themes/tango/32x32/status/network-idle.png</file>
+        <file alias="32x32/network-offline.png">themes/tango/32x32/status/network-offline.png</file>
+        <file alias="32x32/network-receive.png">themes/tango/32x32/status/network-receive.png</file>
+        <file alias="32x32/network-transmit-receive.png">themes/tango/32x32/status/network-transmit-receive.png</file>
+        <file alias="32x32/network-transmit.png">themes/tango/32x32/status/network-transmit.png</file>
+        <file alias="32x32/network-wireless-encrypted.png">themes/tango/32x32/status/network-wireless-encrypted.png</file>
+        <file alias="32x32/printer-error.png">themes/tango/32x32/status/printer-error.png</file>
+        <file alias="32x32/software-update-available.png">themes/tango/32x32/status/software-update-available.png</file>
+        <file alias="32x32/software-update-urgent.png">themes/tango/32x32/status/software-update-urgent.png</file>
+        <file alias="32x32/user-trash-full.png">themes/tango/32x32/status/user-trash-full.png</file>
+        <file alias="32x32/weather-clear-night.png">themes/tango/32x32/status/weather-clear-night.png</file>
+        <file alias="32x32/weather-clear.png">themes/tango/32x32/status/weather-clear.png</file>
+        <file alias="32x32/weather-few-clouds-night.png">themes/tango/32x32/status/weather-few-clouds-night.png</file>
+        <file alias="32x32/weather-few-clouds.png">themes/tango/32x32/status/weather-few-clouds.png</file>
+        <file alias="32x32/weather-overcast.png">themes/tango/32x32/status/weather-overcast.png</file>
+        <file alias="32x32/weather-severe-alert.png">themes/tango/32x32/status/weather-severe-alert.png</file>
+        <file alias="32x32/weather-showers-scattered.png">themes/tango/32x32/status/weather-showers-scattered.png</file>
+        <file alias="32x32/weather-showers.png">themes/tango/32x32/status/weather-showers.png</file>
+        <file alias="32x32/weather-snow.png">themes/tango/32x32/status/weather-snow.png</file>
+        <file alias="32x32/weather-storm.png">themes/tango/32x32/status/weather-storm.png</file>
+        <file alias="index.theme">themes/tango/index.theme</file>
+    </qresource>
+</RCC>
diff --git a/partlistsmanager.qrc b/partlistsmanager.qrc
new file mode 100644
index 0000000..fb32232
--- /dev/null
+++ b/partlistsmanager.qrc
@@ -0,0 +1,8 @@
+<RCC>
+    <qresource prefix="/icons">
+        <file>images/splashEmpty.png</file>
+    </qresource>
+    <qresource prefix="/">
+        <file>themes/tango/index.theme</file>
+    </qresource>
+</RCC>