diff --git a/src/editing/basepreview.cpp b/src/editing/basepreview.cpp
index f436011..43045dd 100644
--- a/src/editing/basepreview.cpp
+++ b/src/editing/basepreview.cpp
@@ -327,7 +327,7 @@ int PreviewDrawingManager::chunkCount()
 
 /*************** BasePreview ***************/
 BasePreview::BasePreview(QWidget* parent) :
-QWidget(parent)
+DrawingWidget(parent)
 {
     this->_lock_drawing = new QMutex();
 
@@ -687,12 +687,11 @@ void BasePreview::resizeEvent(QResizeEvent* event)
     this->_lock_drawing->unlock();
 }
 
-void BasePreview::paintEvent(QPaintEvent*)
+void BasePreview::doDrawing(QPainter* painter)
 {
-    QPainter painter(this);
     if (isEnabled())
     {
-        painter.drawImage(0, 0, *this->_pixbuf);
+        painter->drawImage(0, 0, *this->_pixbuf);
 
         QImage osd(_pixbuf->size(), _pixbuf->format());
         osd.fill(0x00000000);
@@ -700,11 +699,11 @@ void BasePreview::paintEvent(QPaintEvent*)
         {
             _osd[i]->apply(&osd, xoffset, yoffset, scaling);
         }
-        painter.drawImage(0, 0, osd);
+        painter->drawImage(0, 0, osd);
     }
     else
     {
-        painter.fillRect(rect(), QColor(100, 100, 100));
+        painter->fillRect(rect(), QColor(100, 100, 100));
     }
 }
 
diff --git a/src/editing/basepreview.h b/src/editing/basepreview.h
index 1c11547..1993a74 100644
--- a/src/editing/basepreview.h
+++ b/src/editing/basepreview.h
@@ -3,14 +3,16 @@
 
 #include <QMutex>
 #include <QImage>
-#include <QWidget>
 #include <QThread>
 #include <QVector>
 #include <QList>
 #include <QLabel>
 #include <QHash>
-#include "previewosd.h"
-#include "common/previewrenderer.h"
+
+#include "editing/previewosd.h"
+#include "editing/common/DrawingWidget.h"
+#include "editing/common/previewrenderer.h"
+
 #include "rendering/tools/pack.h"
 #include "rendering/tools/color.h"
 
@@ -29,7 +31,9 @@ public:
     bool value;
 };
 
-class BasePreview : public QWidget
+class QPainter;
+
+class BasePreview : public DrawingWidget
 {
     Q_OBJECT
 
@@ -83,7 +87,8 @@ private:
     void timerEvent(QTimerEvent* event);
     void showEvent(QShowEvent* event);
     void resizeEvent(QResizeEvent* event);
-    void paintEvent(QPaintEvent* event);
+
+    void doDrawing(QPainter* painter);
 
     void contextMenuEvent(QContextMenuEvent* event);
     void mousePressEvent(QMouseEvent* event);
diff --git a/src/editing/common/DrawingWidget.cpp b/src/editing/common/DrawingWidget.cpp
new file mode 100644
index 0000000..b31be41
--- /dev/null
+++ b/src/editing/common/DrawingWidget.cpp
@@ -0,0 +1,23 @@
+#include "DrawingWidget.h"
+
+#include <QPainter>
+#include <QPainterPath>
+
+DrawingWidget::DrawingWidget(QWidget* parent) :
+QWidget(parent)
+{
+}
+
+void DrawingWidget::paintEvent(QPaintEvent*)
+{
+    QPainter painter(this);
+
+    QPainterPath mask;
+    mask.addRoundedRect(rect(), 8.0, 8.0);
+
+    painter.setRenderHint(QPainter::Antialiasing, true);
+    painter.setClipPath(mask);
+    painter.setRenderHint(QPainter::Antialiasing, false);
+
+    doDrawing(&painter);
+}
diff --git a/src/editing/common/DrawingWidget.h b/src/editing/common/DrawingWidget.h
new file mode 100644
index 0000000..dd3db01
--- /dev/null
+++ b/src/editing/common/DrawingWidget.h
@@ -0,0 +1,21 @@
+#ifndef DRAWINGWIDGET_H
+#define	DRAWINGWIDGET_H
+
+#include <QWidget>
+
+class QPaintEvent;
+class QPainter;
+
+class DrawingWidget : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit DrawingWidget(QWidget* parent = 0);
+protected:
+    virtual void doDrawing(QPainter* painter) = 0;
+private:
+    virtual void paintEvent(QPaintEvent* event);
+};
+
+#endif	/* DRAWINGWIDGET_H */
+
diff --git a/src/editing/terrain/widgetterrainbasenoisepreview.cpp b/src/editing/terrain/widgetterrainbasenoisepreview.cpp
index aacdc99..ba97b32 100644
--- a/src/editing/terrain/widgetterrainbasenoisepreview.cpp
+++ b/src/editing/terrain/widgetterrainbasenoisepreview.cpp
@@ -5,7 +5,7 @@
 #include "tools.h"
 
 WidgetTerrainBaseNoisePreview::WidgetTerrainBaseNoisePreview(QWidget* parent) :
-    QWidget(parent)
+    DrawingWidget(parent)
 {
     _noise = NULL;
 }
@@ -16,18 +16,17 @@ void WidgetTerrainBaseNoisePreview::setNoise(NoiseGenerator* noise)
     update();
 }
 
-void WidgetTerrainBaseNoisePreview::paintEvent(QPaintEvent* event)
+void WidgetTerrainBaseNoisePreview::doDrawing(QPainter* painter)
 {
-    QPainter painter(this);
-
-    painter.setBrush(Qt::SolidPattern);
-    painter.drawRect(rect());
+    painter->setBrush(Qt::SolidPattern);
+    painter->drawRect(rect());
 
     int height = this->height();
 
     if (_noise)
     {
-        QRect boundaries = event->region().boundingRect();
+        //QRect boundaries = event->region().boundingRect();
+        QRect boundaries = rect(); // TODO Limit to updated region
         double value, factor;
         double minvalue, maxvalue;
 
@@ -38,8 +37,8 @@ void WidgetTerrainBaseNoisePreview::paintEvent(QPaintEvent* event)
         {
             value = noiseGet1DTotal(_noise, 100.0 * ((double)x) / factor);
 
-            painter.setPen(Qt::white);
-            painter.drawLine(x, height - 1 - (value - minvalue) * factor, x, height - 1);
+            painter->setPen(Qt::white);
+            painter->drawLine(x, height - 1 - (value - minvalue) * factor, x, height - 1);
         }
     }
 }
diff --git a/src/editing/terrain/widgetterrainbasenoisepreview.h b/src/editing/terrain/widgetterrainbasenoisepreview.h
index f3e12a5..a232da8 100644
--- a/src/editing/terrain/widgetterrainbasenoisepreview.h
+++ b/src/editing/terrain/widgetterrainbasenoisepreview.h
@@ -1,10 +1,13 @@
 #ifndef _PAYSAGES_EDITING_TERRAIN_WIDGETTERRAINBASENOISEPREVIEW_H_
 #define _PAYSAGES_EDITING_TERRAIN_WIDGETTERRAINBASENOISEPREVIEW_H_
 
-#include <QWidget>
+#include "editing/common/DrawingWidget.h"
+
 #include "rendering/noise.h"
 
-class WidgetTerrainBaseNoisePreview : public QWidget
+class QPainter;
+
+class WidgetTerrainBaseNoisePreview : public DrawingWidget
 {
     Q_OBJECT
 public:
@@ -13,11 +16,7 @@ public:
     void setNoise(NoiseGenerator* noise);
 
 protected:
-    virtual void paintEvent(QPaintEvent* event);
-
-signals:
-    
-public slots:
+    virtual void doDrawing(QPainter* painter);
 
 private:
     NoiseGenerator* _noise;