diff --git a/.gitignore b/.gitignore
index 2a5bc08..16eedea 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,4 +4,5 @@ tests/test
 qshowdiff
 doc/*.png
 *~
+src/qt/*.moc
 
diff --git a/src/Makefile b/src/Makefile
index c4cd01f..dbf1a9e 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,4 +1,6 @@
 CC = g++
+MOC = /opt/qt4/bin/moc
+
 CXXFLAGS = -Wall -Wno-long-long -pedantic -O2
 DEBUGFLAGS = -g
 QT_INCLUDE = -DQT_SHARED -I/opt/qt4/include -I/opt/qt4/include/QtCore \
@@ -35,9 +37,9 @@ objs/%.o: %.cpp %.h
 objs/%.o: %.cpp
 	$(CC) $(ALL_FLAGS) -c -o $@ $<
 	
-#qt/diff_view.cpp: qt/diff_view.moc
-#qt/diff_view.moc: qt/diff_view.h
-#	moc -p'.' $< > $@
+qt/diff_view.cpp: qt/diff_view.moc
+qt/diff_view.moc: qt/diff_view.h
+	$(MOC) -p'.' $< > $@
 
 clean:
 	rm -f objs/*.o
diff --git a/src/diff/diff.cpp b/src/diff/diff.cpp
index 7481125..12e3fc8 100644
--- a/src/diff/diff.cpp
+++ b/src/diff/diff.cpp
@@ -29,6 +29,17 @@ int Diff::paintModified(QPainter &painter) const
     return offset;
 }
 
+
+int Diff::paintOriginal(int pos, QPainter &painter) const
+{
+    return VectorOfPointers<File>::_get(pos)->paintOriginal(painter, 0);
+}
+
+int Diff::paintModified(int pos, QPainter &painter) const
+{
+    return VectorOfPointers<File>::_get(pos)->paintModified(painter, 0);
+}
+
 // static member
 Diff Diff::diff;
 
diff --git a/src/diff/diff.h b/src/diff/diff.h
index 5dee474..d206b3b 100644
--- a/src/diff/diff.h
+++ b/src/diff/diff.h
@@ -25,8 +25,13 @@ class Diff : public VectorOfPointers<File>{
 
     void addFile(File *f){ VectorOfPointers<File>::_add(f); }
     int numFiles() const { return VectorOfPointers<File>::_size(); }
+    QString getFile(int pos) const
+        { return VectorOfPointers<File>::_get(pos)->getFilename(); }
+
     int paintOriginal(QPainter &) const;
     int paintModified(QPainter &) const;
+    int paintOriginal(int pos, QPainter &) const;
+    int paintModified(int pos, QPainter &) const;
 };
 
 #endif
diff --git a/src/diff/file.h b/src/diff/file.h
index 1a58ad6..d999e6a 100644
--- a/src/diff/file.h
+++ b/src/diff/file.h
@@ -23,6 +23,11 @@ class File : public VectorOfPointers<Hunk>{
     void addHunk(Hunk *h){ VectorOfPointers<Hunk>::_add(h);}
     int numHunks() const { return VectorOfPointers<Hunk>::_size();}
 
+    /**
+     * Return filename.
+     */
+    QString getFilename() const { return _filename; }
+
     int paintOriginal(QPainter &original, int offset) const;
     int paintModified(QPainter &original, int offset) const;
 };
diff --git a/src/diff/utils.h b/src/diff/utils.h
index 075701a..6e5d3fd 100644
--- a/src/diff/utils.h
+++ b/src/diff/utils.h
@@ -86,6 +86,11 @@ class VectorOfPointers{
      */
     int _size() const { return _list.size(); }
 
+    /**
+     * Returns Type* at position pos in _list.
+     */
+    Type *_get(int pos) const { return _list[pos]; }
+
     list_iterator_t _begin() const { return _list.begin();}
     list_iterator_t _end() const { return _list.end();}
 
diff --git a/src/qt/diff_view.cpp b/src/qt/diff_view.cpp
index 05f4305..241618b 100644
--- a/src/qt/diff_view.cpp
+++ b/src/qt/diff_view.cpp
@@ -5,21 +5,22 @@
 
 #include "../debug.h"
 #include "diff_view.h"
+#include "diff_view.moc"
 
 DiffViewFrame::DiffViewFrame(QWidget *parent) : QWidget(parent)
 {
 	QVBoxLayout *layout = new QVBoxLayout();
     QSplitter *splitter = new QSplitter(Qt::Horizontal);
-    DiffView *original = new DiffView(true);
-    DiffView *modified = new DiffView(false);
+    _original = new DiffView(true);
+    _modified = new DiffView(false);
     QScrollArea *orig = new QScrollArea();
     QScrollArea *modif = new QScrollArea();
 
     
-    orig->setWidget(original);
+    orig->setWidget(_original);
     orig->setWidgetResizable(true);
     orig->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
-    modif->setWidget(modified);
+    modif->setWidget(_modified);
     modif->setWidgetResizable(true);
 
     splitter->addWidget(orig);
@@ -45,6 +46,14 @@ DiffViewFrame::DiffViewFrame(QWidget *parent) : QWidget(parent)
             SLOT(setValue(int)));
 }
 
+void DiffViewFrame::changeFile(int num) const
+{
+    if (num != -1){
+        // num - 1 is there because num==0 is for 'All files'
+        _original->setCurrentFile(num - 1);
+        _modified->setCurrentFile(num - 1);
+    }
+}
 
 /* DiffView */
 void DiffView::paintEvent(QPaintEvent *e)
@@ -52,11 +61,23 @@ void DiffView::paintEvent(QPaintEvent *e)
     int height;
     QPainter painter(this);
     if (_original){
-        height = Diff::instance()->paintOriginal(painter);
+        if (_current_file == -1)
+            height = Diff::instance()->paintOriginal(painter);
+        else
+            height = Diff::instance()->paintOriginal(_current_file, painter);
     }else{
-        height = Diff::instance()->paintModified(painter);
+        if (_current_file == -1)
+            height = Diff::instance()->paintModified(painter);
+        else
+            height = Diff::instance()->paintModified(_current_file, painter);
     }
 
     setFixedHeight(height);
     setMinimumWidth(Settings::max_line_width);
 }
+
+void DiffView::setCurrentFile(int num)
+{
+    _current_file = num;
+    repaint();
+}
diff --git a/src/qt/diff_view.h b/src/qt/diff_view.h
index ce487f7..0fa75fd 100644
--- a/src/qt/diff_view.h
+++ b/src/qt/diff_view.h
@@ -6,18 +6,39 @@
 #include <QScrollArea>
 #include "../diff/diff.h"
 
+class DiffView;
+
 class DiffViewFrame : public QWidget{
+    Q_OBJECT
+  private:
+    DiffView *_original;
+    DiffView *_modified;
+
+
   public:
 	DiffViewFrame(QWidget *parent = 0);
+
+  public slots:
+    /**
+     * Change which file will be displayed.
+     */
+    void changeFile(int) const;
 };
 
 class DiffView : public QWidget{
   private:
     bool _original;
 
+    /**
+     * Number of current file. -1 if all files.
+     */
+    int _current_file;
+
   public:
     DiffView(bool original, QWidget *parent = 0) : QWidget(parent),
-        _original(original) {}
+        _original(original), _current_file(-1) {}
     void paintEvent(QPaintEvent *e);
+
+    void setCurrentFile(int);
 };
 #endif
diff --git a/src/qt/main_window.cpp b/src/qt/main_window.cpp
index 02a3b81..3375926 100644
--- a/src/qt/main_window.cpp
+++ b/src/qt/main_window.cpp
@@ -2,18 +2,30 @@
 #include <QWidget>
 #include <QPushButton>
 #include <QVBoxLayout>
+#include <QListWidget> //TODO: change to QListWidget
 #include "main_window.h"
 #include "diff_view.h"
 
 MainWindow::MainWindow()
 {
     QSplitter *splitter = new QSplitter(Qt::Vertical);
-    QWidget *top = new QWidget();
+    QListWidget *top = new QListWidget();
     DiffViewFrame *bottom = new DiffViewFrame();
 
-    top->setMaximumHeight(100);
+    DBG("getFile(0) - " << Diff::instance()->getFile(0).toStdString());
+    top->insertItem(0, new QListWidgetItem("All files"));
+    int len = Diff::instance()->numFiles();
+    for (int i=0; i < len; i++){
+        top->insertItem(i+1, new QListWidgetItem(Diff::instance()->getFile(i)));
+    }
+
     splitter->addWidget(top);
     splitter->addWidget(bottom);
+    splitter->setStretchFactor(0,1);
+    splitter->setStretchFactor(1,10);
 
     setCentralWidget(splitter);
+
+    connect(top, SIGNAL(currentRowChanged(int)), bottom,
+            SLOT(changeFile(int)));
 }