diff --git a/gui/mainwindow.cc b/gui/mainwindow.cc
index 4bf6be1e..2880ccc2 100644
--- a/gui/mainwindow.cc
+++ b/gui/mainwindow.cc
@@ -1,304 +1,330 @@
-#include "mainwindow.h"
-#include <functional>
-#include <iostream>
-#include <string>
-#include "emb.h"
-#include "pybindings.h"
-#include "ui_mainwindow.h"
-
-#include <QDate>
-#include <QLocale>
-
-enum class ElementType
-{
-    BEL,
-    WIRE,
-    PIP
-};
-
-class ElementTreeItem : public QTreeWidgetItem
-{
-  public:
-    ElementTreeItem(ElementType t, QString str)
-            : QTreeWidgetItem((QTreeWidget *)nullptr, QStringList(str)), type(t)
-    {
-    }
-    virtual ~ElementTreeItem(){};
-
-    ElementType getType() { return type; };
-
-  private:
-    ElementType type;
-};
-
-class BelTreeItem : public ElementTreeItem
-{
-  public:
-    BelTreeItem(IdString d, ElementType type, QString str)
-            : ElementTreeItem(type, str)
-    {
-        this->data = d;
-    }
-    virtual ~BelTreeItem(){};
-
-    IdString getData() { return this->data; };
-
-  private:
-    IdString data;
-};
-
-class WireTreeItem : public ElementTreeItem
-{
-  public:
-    WireTreeItem(IdString d, ElementType type, QString str)
-            : ElementTreeItem(type, str)
-    {
-        this->data = d;
-    }
-    virtual ~WireTreeItem(){};
-
-    IdString getData() { return this->data; };
-
-  private:
-    IdString data;
-};
-
-class PipTreeItem : public ElementTreeItem
-{
-  public:
-    PipTreeItem(IdString d, ElementType type, QString str)
-            : ElementTreeItem(type, str)
-    {
-        this->data = d;
-    }
-    virtual ~PipTreeItem(){};
-
-    IdString getData() { return this->data; };
-
-  private:
-    IdString data;
-};
-
-MainWindow::MainWindow(Design *_design, QWidget *parent)
-        : QMainWindow(parent), ui(new Ui::MainWindow), design(_design)
-{
-    ui->setupUi(this);
-    PyImport_ImportModule("emb");
-
-    write = [this](std::string s) {
-        plainTextEdit->moveCursor(QTextCursor::End);
-        plainTextEdit->insertPlainText(s.c_str());
-        plainTextEdit->moveCursor(QTextCursor::End);
-    };
-    emb::set_stdout(write);
-    std::string title = "nextpnr-ice40 - " + design->chip.getChipName();
-    setWindowTitle(title.c_str());
-
-    // Add tree view
-    ui->treeWidget->setColumnCount(1);
-    ui->treeWidget->setHeaderLabel(QString("Items"));
-    ui->treeWidget->setContextMenuPolicy(Qt::CustomContextMenu);
-    connect(ui->treeWidget, &QTreeWidget::customContextMenuRequested, this,
-            &MainWindow::prepareMenu);
-
-    // Add bels to tree
-    QTreeWidgetItem *bel_root = new QTreeWidgetItem(ui->treeWidget);
-    bel_root->setText(0, QString("Bels"));
-    ui->treeWidget->insertTopLevelItem(0, bel_root);
-    QList<QTreeWidgetItem *> bel_items;
-    for (auto bel : design->chip.getBels()) {
-        auto name = design->chip.getBelName(bel);
-        bel_items.append(
-                new BelTreeItem(name, ElementType::BEL, QString(name.c_str())));
-    }
-    bel_root->addChildren(bel_items);
-
-    // Add wires to tree
-    QTreeWidgetItem *wire_root = new QTreeWidgetItem(ui->treeWidget);
-    QList<QTreeWidgetItem *> wire_items;
-    wire_root->setText(0, QString("Wires"));
-    ui->treeWidget->insertTopLevelItem(0, wire_root);
-    for (auto wire : design->chip.getWires()) {
-        auto name = design->chip.getWireName(wire);
-        wire_items.append(new WireTreeItem(name, ElementType::WIRE,
-                                           QString(name.c_str())));
-    }
-    wire_root->addChildren(wire_items);
-
-    // Add pips to tree
-    QTreeWidgetItem *pip_root = new QTreeWidgetItem(ui->treeWidget);
-    QList<QTreeWidgetItem *> pip_items;
-    pip_root->setText(0, QString("Pips"));
-    ui->treeWidget->insertTopLevelItem(0, pip_root);
-    for (auto pip : design->chip.getPips()) {
-        auto name = design->chip.getPipName(pip);
-        pip_items.append(
-                new PipTreeItem(name, ElementType::PIP, QString(name.c_str())));
-    }
-    pip_root->addChildren(pip_items);
-
-    // Add property view
-    variantManager = new QtVariantPropertyManager();
-    variantFactory = new QtVariantEditorFactory();
-    propertyEditor = new QtTreePropertyBrowser();
-    propertyEditor->setFactoryForManager(variantManager, variantFactory);
-    propertyEditor->setPropertiesWithoutValueMarked(true);
-    propertyEditor->setRootIsDecorated(false);
-    propertyEditor->show();
-    ui->splitter_2->addWidget(propertyEditor);
-
-    connect(ui->treeWidget, SIGNAL(itemClicked(QTreeWidgetItem *, int)),
-            SLOT(onItemClicked(QTreeWidgetItem *, int)));
-
-    // Add text area for Python output and input line
-    plainTextEdit = new QPlainTextEdit();
-    plainTextEdit->setReadOnly(true);
-    plainTextEdit->setMinimumHeight(50);
-    plainTextEdit->setMaximumHeight(200);
-    ui->splitter->addWidget(plainTextEdit);
-    lineEdit = new QLineEdit();
-    lineEdit->setMinimumHeight(30);
-    lineEdit->setMaximumHeight(30);
-    ui->splitter->addWidget(lineEdit);
-    connect(lineEdit, SIGNAL(returnPressed()), this,
-            SLOT(editLineReturnPressed()));
-}
-
-MainWindow::~MainWindow()
-{
-    delete variantManager;
-    delete variantFactory;
-    delete propertyEditor;
-    delete ui;
-}
-
-void MainWindow::addProperty(QtVariantProperty *property, const QString &id)
-{
-    propertyToId[property] = id;
-    idToProperty[id] = property;
-    QtBrowserItem *item = propertyEditor->addProperty(property);
-}
-
-void MainWindow::onItemClicked(QTreeWidgetItem *item, int pos)
-{
-    if (!item->parent())
-        return;
-    ElementType type = static_cast<ElementTreeItem *>(item)->getType();
-    QMap<QtProperty *, QString>::ConstIterator itProp =
-            propertyToId.constBegin();
-    while (itProp != propertyToId.constEnd()) {
-        delete itProp.key();
-        itProp++;
-    }
-    propertyToId.clear();
-    idToProperty.clear();
-
-    if (type == ElementType::BEL) {
-        IdString c = static_cast<BelTreeItem *>(item)->getData();
-
-        QtVariantProperty *topItem =
-                variantManager->addProperty(QVariant::String, QString("Name"));
-        topItem->setValue(QString(c.c_str()));
-        addProperty(topItem, QString("Name"));
-    } else if (type == ElementType::WIRE) {
-        IdString c = static_cast<WireTreeItem *>(item)->getData();
-
-        QtVariantProperty *topItem =
-                variantManager->addProperty(QVariant::String, QString("Name"));
-        topItem->setValue(QString(c.c_str()));
-        addProperty(topItem, QString("Name"));
-
-    } else if (type == ElementType::PIP) {
-        IdString c = static_cast<PipTreeItem *>(item)->getData();
-
-        QtVariantProperty *topItem =
-                variantManager->addProperty(QVariant::String, QString("Name"));
-        topItem->setValue(QString(c.c_str()));
-        addProperty(topItem, QString("Name"));
-    }
-}
-
-void MainWindow::prepareMenu(const QPoint &pos)
-{
-    QTreeWidget *tree = ui->treeWidget;
-
-    itemContextMenu = tree->itemAt(pos);
-
-    QAction *selectAction = new QAction("&Select", this);
-    selectAction->setStatusTip("Select item on view");
-    connect(selectAction, SIGNAL(triggered()), this, SLOT(selectObject()));
-
-    QMenu menu(this);
-    menu.addAction(selectAction);
-
-    QPoint pt(pos);
-    menu.exec(tree->mapToGlobal(pos));
-}
-
-void MainWindow::selectObject()
-{
-    plainTextEdit->moveCursor(QTextCursor::End);
-    plainTextEdit->insertPlainText(
-            std::string("selected " + itemContextMenu->text(0).toStdString() +
-                        "\n")
-                    .c_str());
-    plainTextEdit->moveCursor(QTextCursor::End);
-}
-
-void handle_system_exit() { exit(-1); }
-
-int MainWindow::executePython(std::string command)
-{
-    PyObject *m, *d, *v;
-    m = PyImport_AddModule("__main__");
-    if (m == NULL)
-        return -1;
-    d = PyModule_GetDict(m);
-    v = PyRun_StringFlags(command.c_str(),
-                          (command.empty() ? Py_file_input : Py_single_input),
-                          d, d, NULL);
-    if (v == NULL) {
-        PyObject *exception, *v, *tb;
-
-        if (PyErr_ExceptionMatches(PyExc_SystemExit)) {
-            handle_system_exit();
-        }
-        PyErr_Fetch(&exception, &v, &tb);
-        if (exception == NULL)
-            return 0;
-        PyErr_NormalizeException(&exception, &v, &tb);
-        if (tb == NULL) {
-            tb = Py_None;
-            Py_INCREF(tb);
-        }
-        PyException_SetTraceback(v, tb);
-        if (exception == NULL)
-            return 0;
-        PyErr_Clear();
-
-        PyObject *objectsRepresentation = PyObject_Str(v);
-        std::string errorStr =
-                PyUnicode_AsUTF8(objectsRepresentation) + std::string("\n");
-        plainTextEdit->moveCursor(QTextCursor::End);
-        plainTextEdit->insertPlainText(errorStr.c_str());
-        plainTextEdit->moveCursor(QTextCursor::End);
-        Py_DECREF(objectsRepresentation);
-        Py_XDECREF(exception);
-        Py_XDECREF(v);
-        Py_XDECREF(tb);
-        return -1;
-    }
-    Py_DECREF(v);
-    return 0;
-}
-
-void MainWindow::editLineReturnPressed()
-{
-    std::string input = lineEdit->text().toStdString();
-    plainTextEdit->moveCursor(QTextCursor::End);
-    plainTextEdit->insertPlainText(std::string(">>> " + input + "\n").c_str());
-    plainTextEdit->moveCursor(QTextCursor::End);
-    plainTextEdit->update();
-    lineEdit->clear();
-    int error = executePython(input);
-}
+#include "mainwindow.h"
+#include <functional>
+#include <iostream>
+#include <string>
+#include "emb.h"
+#include "pybindings.h"
+#include "ui_mainwindow.h"
+
+#include <QDate>
+#include <QLocale>
+
+enum class ElementType
+{
+    BEL,
+    WIRE,
+    PIP
+};
+
+class ElementTreeItem : public QTreeWidgetItem
+{
+  public:
+    ElementTreeItem(ElementType t, QString str)
+            : QTreeWidgetItem((QTreeWidget *)nullptr, QStringList(str)), type(t)
+    {
+    }
+    virtual ~ElementTreeItem(){};
+
+    ElementType getType() { return type; };
+
+  private:
+    ElementType type;
+};
+
+class BelTreeItem : public ElementTreeItem
+{
+  public:
+    BelTreeItem(IdString d, ElementType type, QString str)
+            : ElementTreeItem(type, str)
+    {
+        this->data = d;
+    }
+    virtual ~BelTreeItem(){};
+
+    IdString getData() { return this->data; };
+
+  private:
+    IdString data;
+};
+
+class WireTreeItem : public ElementTreeItem
+{
+  public:
+    WireTreeItem(IdString d, ElementType type, QString str)
+            : ElementTreeItem(type, str)
+    {
+        this->data = d;
+    }
+    virtual ~WireTreeItem(){};
+
+    IdString getData() { return this->data; };
+
+  private:
+    IdString data;
+};
+
+class PipTreeItem : public ElementTreeItem
+{
+  public:
+    PipTreeItem(IdString d, ElementType type, QString str)
+            : ElementTreeItem(type, str)
+    {
+        this->data = d;
+    }
+    virtual ~PipTreeItem(){};
+
+    IdString getData() { return this->data; };
+
+  private:
+    IdString data;
+};
+
+PythonTab::PythonTab(QWidget *parent) : QWidget(parent)
+{
+    PyImport_ImportModule("emb");
+
+    // Add text area for Python output and input line
+    plainTextEdit = new QPlainTextEdit();
+    plainTextEdit->setReadOnly(true);
+    plainTextEdit->setMinimumHeight(100);
+    lineEdit = new QLineEdit();
+    lineEdit->setMinimumHeight(30);
+    lineEdit->setMaximumHeight(30);
+
+    QGridLayout *mainLayout = new QGridLayout();
+    mainLayout->addWidget(plainTextEdit, 0, 0);
+    mainLayout->addWidget(lineEdit, 1, 0);
+    setLayout(mainLayout);
+
+    connect(lineEdit, SIGNAL(returnPressed()), this,
+            SLOT(editLineReturnPressed()));
+
+    write = [this](std::string s) {
+        plainTextEdit->moveCursor(QTextCursor::End);
+        plainTextEdit->insertPlainText(s.c_str());
+        plainTextEdit->moveCursor(QTextCursor::End);
+    };
+    emb::set_stdout(write);
+}
+
+void handle_system_exit() { exit(-1); }
+
+int PythonTab::executePython(std::string command)
+{
+    PyObject *m, *d, *v;
+    m = PyImport_AddModule("__main__");
+    if (m == NULL)
+        return -1;
+    d = PyModule_GetDict(m);
+    v = PyRun_StringFlags(command.c_str(),
+                          (command.empty() ? Py_file_input : Py_single_input),
+                          d, d, NULL);
+    if (v == NULL) {
+        PyObject *exception, *v, *tb;
+
+        if (PyErr_ExceptionMatches(PyExc_SystemExit)) {
+            handle_system_exit();
+        }
+        PyErr_Fetch(&exception, &v, &tb);
+        if (exception == NULL)
+            return 0;
+        PyErr_NormalizeException(&exception, &v, &tb);
+        if (tb == NULL) {
+            tb = Py_None;
+            Py_INCREF(tb);
+        }
+        PyException_SetTraceback(v, tb);
+        if (exception == NULL)
+            return 0;
+        PyErr_Clear();
+
+        PyObject *objectsRepresentation = PyObject_Str(v);
+        std::string errorStr =
+                PyUnicode_AsUTF8(objectsRepresentation) + std::string("\n");
+        plainTextEdit->moveCursor(QTextCursor::End);
+        plainTextEdit->insertPlainText(errorStr.c_str());
+        plainTextEdit->moveCursor(QTextCursor::End);
+        Py_DECREF(objectsRepresentation);
+        Py_XDECREF(exception);
+        Py_XDECREF(v);
+        Py_XDECREF(tb);
+        return -1;
+    }
+    Py_DECREF(v);
+    return 0;
+}
+
+void PythonTab::editLineReturnPressed()
+{
+    std::string input = lineEdit->text().toStdString();
+    plainTextEdit->moveCursor(QTextCursor::End);
+    plainTextEdit->insertPlainText(std::string(">>> " + input + "\n").c_str());
+    plainTextEdit->moveCursor(QTextCursor::End);
+    plainTextEdit->update();
+    lineEdit->clear();
+    int error = executePython(input);
+}
+
+InfoTab::InfoTab(QWidget *parent) : QWidget(parent)
+{
+    // Add text area for Python output and input line
+    plainTextEdit = new QPlainTextEdit();
+    plainTextEdit->setReadOnly(true);
+
+    QGridLayout *mainLayout = new QGridLayout();
+    mainLayout->addWidget(plainTextEdit);
+    setLayout(mainLayout);
+}
+
+void InfoTab::info(std::string str)
+{
+    plainTextEdit->moveCursor(QTextCursor::End);
+    plainTextEdit->insertPlainText(str.c_str());
+    plainTextEdit->moveCursor(QTextCursor::End);
+}
+
+MainWindow::MainWindow(Design *_design, QWidget *parent)
+        : QMainWindow(parent), ui(new Ui::MainWindow), design(_design)
+{
+    ui->setupUi(this);
+    std::string title = "nextpnr-ice40 - " + design->chip.getChipName();
+    setWindowTitle(title.c_str());
+
+    // Add tree view
+    ui->treeWidget->setColumnCount(1);
+    ui->treeWidget->setHeaderLabel(QString("Items"));
+    ui->treeWidget->setContextMenuPolicy(Qt::CustomContextMenu);
+    connect(ui->treeWidget, &QTreeWidget::customContextMenuRequested, this,
+            &MainWindow::prepareMenu);
+
+    // Add bels to tree
+    QTreeWidgetItem *bel_root = new QTreeWidgetItem(ui->treeWidget);
+    bel_root->setText(0, QString("Bels"));
+    ui->treeWidget->insertTopLevelItem(0, bel_root);
+    QList<QTreeWidgetItem *> bel_items;
+    for (auto bel : design->chip.getBels()) {
+        auto name = design->chip.getBelName(bel);
+        bel_items.append(
+                new BelTreeItem(name, ElementType::BEL, QString(name.c_str())));
+    }
+    bel_root->addChildren(bel_items);
+
+    // Add wires to tree
+    QTreeWidgetItem *wire_root = new QTreeWidgetItem(ui->treeWidget);
+    QList<QTreeWidgetItem *> wire_items;
+    wire_root->setText(0, QString("Wires"));
+    ui->treeWidget->insertTopLevelItem(0, wire_root);
+    for (auto wire : design->chip.getWires()) {
+        auto name = design->chip.getWireName(wire);
+        wire_items.append(new WireTreeItem(name, ElementType::WIRE,
+                                           QString(name.c_str())));
+    }
+    wire_root->addChildren(wire_items);
+
+    // Add pips to tree
+    QTreeWidgetItem *pip_root = new QTreeWidgetItem(ui->treeWidget);
+    QList<QTreeWidgetItem *> pip_items;
+    pip_root->setText(0, QString("Pips"));
+    ui->treeWidget->insertTopLevelItem(0, pip_root);
+    for (auto pip : design->chip.getPips()) {
+        auto name = design->chip.getPipName(pip);
+        pip_items.append(
+                new PipTreeItem(name, ElementType::PIP, QString(name.c_str())));
+    }
+    pip_root->addChildren(pip_items);
+
+    // Add property view
+    variantManager = new QtVariantPropertyManager();
+    variantFactory = new QtVariantEditorFactory();
+    propertyEditor = new QtTreePropertyBrowser();
+    propertyEditor->setFactoryForManager(variantManager, variantFactory);
+    propertyEditor->setPropertiesWithoutValueMarked(true);
+    propertyEditor->setRootIsDecorated(false);
+    propertyEditor->show();
+    ui->splitter_2->addWidget(propertyEditor);
+
+    connect(ui->treeWidget, SIGNAL(itemClicked(QTreeWidgetItem *, int)),
+            SLOT(onItemClicked(QTreeWidgetItem *, int)));
+
+    tabWidget = new QTabWidget();
+    tabWidget->addTab(new PythonTab(), "Python");
+    info = new InfoTab();
+    tabWidget->addTab(info, "Info");
+    ui->splitter->addWidget(tabWidget);
+}
+
+MainWindow::~MainWindow()
+{
+    delete variantManager;
+    delete variantFactory;
+    delete propertyEditor;
+    delete ui;
+}
+
+void MainWindow::addProperty(QtVariantProperty *property, const QString &id)
+{
+    propertyToId[property] = id;
+    idToProperty[id] = property;
+    QtBrowserItem *item = propertyEditor->addProperty(property);
+}
+
+void MainWindow::onItemClicked(QTreeWidgetItem *item, int pos)
+{
+    if (!item->parent())
+        return;
+    ElementType type = static_cast<ElementTreeItem *>(item)->getType();
+    QMap<QtProperty *, QString>::ConstIterator itProp =
+            propertyToId.constBegin();
+    while (itProp != propertyToId.constEnd()) {
+        delete itProp.key();
+        itProp++;
+    }
+    propertyToId.clear();
+    idToProperty.clear();
+
+    if (type == ElementType::BEL) {
+        IdString c = static_cast<BelTreeItem *>(item)->getData();
+
+        QtVariantProperty *topItem =
+                variantManager->addProperty(QVariant::String, QString("Name"));
+        topItem->setValue(QString(c.c_str()));
+        addProperty(topItem, QString("Name"));
+    } else if (type == ElementType::WIRE) {
+        IdString c = static_cast<WireTreeItem *>(item)->getData();
+
+        QtVariantProperty *topItem =
+                variantManager->addProperty(QVariant::String, QString("Name"));
+        topItem->setValue(QString(c.c_str()));
+        addProperty(topItem, QString("Name"));
+
+    } else if (type == ElementType::PIP) {
+        IdString c = static_cast<PipTreeItem *>(item)->getData();
+
+        QtVariantProperty *topItem =
+                variantManager->addProperty(QVariant::String, QString("Name"));
+        topItem->setValue(QString(c.c_str()));
+        addProperty(topItem, QString("Name"));
+    }
+}
+
+void MainWindow::prepareMenu(const QPoint &pos)
+{
+    QTreeWidget *tree = ui->treeWidget;
+
+    itemContextMenu = tree->itemAt(pos);
+
+    QAction *selectAction = new QAction("&Select", this);
+    selectAction->setStatusTip("Select item on view");
+    connect(selectAction, SIGNAL(triggered()), this, SLOT(selectObject()));
+
+    QMenu menu(this);
+    menu.addAction(selectAction);
+
+    QPoint pt(pos);
+    menu.exec(tree->mapToGlobal(pos));
+}
+
+void MainWindow::selectObject()
+{
+    info->info("selected " + itemContextMenu->text(0).toStdString() + "\n");
+}
diff --git a/gui/mainwindow.h b/gui/mainwindow.h
index e9645619..5464a6dd 100644
--- a/gui/mainwindow.h
+++ b/gui/mainwindow.h
@@ -1,56 +1,84 @@
-#ifndef MAINWINDOW_H
-#define MAINWINDOW_H
-
-#include "emb.h"
-#include "nextpnr.h"
-#include "qtpropertymanager.h"
-#include "qttreepropertybrowser.h"
-#include "qtvariantproperty.h"
-
-#include <QLineEdit>
-#include <QMainWindow>
-#include <QPlainTextEdit>
-
-// FIXME
-USING_NEXTPNR_NAMESPACE
-
-namespace Ui {
-class MainWindow;
-}
-
-class MainWindow : public QMainWindow
-{
-    Q_OBJECT
-
-  public:
-    explicit MainWindow(Design *design, QWidget *parent = 0);
-    ~MainWindow();
-    Design *getDesign() { return design; }
-
-  private:
-    int executePython(std::string command);
-    void addProperty(QtVariantProperty *property, const QString &id);
-
-  private Q_SLOTS:
-    void editLineReturnPressed();
-    void prepareMenu(const QPoint &pos);
-    void selectObject();
-    void onItemClicked(QTreeWidgetItem *item, int);
-
-  private:
-    Ui::MainWindow *ui;
-    emb::stdout_write_type write;
-    Design *design;
-    QtVariantPropertyManager *variantManager;
-    QtVariantEditorFactory *variantFactory;
-    QtTreePropertyBrowser *propertyEditor;
-    QTreeWidgetItem *itemContextMenu;
-
-    QMap<QtProperty *, QString> propertyToId;
-    QMap<QString, QtVariantProperty *> idToProperty;
-
-    QPlainTextEdit *plainTextEdit;
-    QLineEdit *lineEdit;
-};
-
-#endif // MAINWINDOW_H
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include "emb.h"
+#include "nextpnr.h"
+#include "qtpropertymanager.h"
+#include "qttreepropertybrowser.h"
+#include "qtvariantproperty.h"
+
+#include <QLineEdit>
+#include <QMainWindow>
+#include <QPlainTextEdit>
+#include <QTabWidget>
+
+// FIXME
+USING_NEXTPNR_NAMESPACE
+
+namespace Ui {
+class MainWindow;
+}
+
+class PythonTab : public QWidget
+{
+    Q_OBJECT
+
+  public:
+    explicit PythonTab(QWidget *parent = 0);
+
+  private:
+    int executePython(std::string command);
+  private Q_SLOTS:
+    void editLineReturnPressed();
+
+  private:
+    QPlainTextEdit *plainTextEdit;
+    QLineEdit *lineEdit;
+    emb::stdout_write_type write;
+};
+
+class InfoTab : public QWidget
+{
+    Q_OBJECT
+
+  public:
+    explicit InfoTab(QWidget *parent = 0);
+    void info(std::string str);
+
+  private:
+    QPlainTextEdit *plainTextEdit;
+};
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+  public:
+    explicit MainWindow(Design *design, QWidget *parent = 0);
+    ~MainWindow();
+    Design *getDesign() { return design; }
+
+  private:
+    void addProperty(QtVariantProperty *property, const QString &id);
+
+  private Q_SLOTS:
+    void prepareMenu(const QPoint &pos);
+    void selectObject();
+    void onItemClicked(QTreeWidgetItem *item, int);
+
+  private:
+    Ui::MainWindow *ui;
+    Design *design;
+    QtVariantPropertyManager *variantManager;
+    QtVariantEditorFactory *variantFactory;
+    QtTreePropertyBrowser *propertyEditor;
+    QTreeWidgetItem *itemContextMenu;
+
+    QMap<QtProperty *, QString> propertyToId;
+    QMap<QString, QtVariantProperty *> idToProperty;
+
+    QTabWidget *tabWidget;
+    InfoTab *info;
+};
+
+#endif // MAINWINDOW_H