diff --git a/Modules/QtWidgetsExt/src/QmitkTransferFunctionWidget.ui b/Modules/QtWidgetsExt/src/QmitkTransferFunctionWidget.ui
index ddfc7db000..b078eb4961 100755
--- a/Modules/QtWidgetsExt/src/QmitkTransferFunctionWidget.ui
+++ b/Modules/QtWidgetsExt/src/QmitkTransferFunctionWidget.ui
@@ -1,557 +1,557 @@
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>QmitkTransferFunctionWidget</class>
<widget class="QWidget" name="QmitkTransferFunctionWidget">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>300</width>
<height>542</height>
</rect>
</property>
<property name="sizePolicy">
<sizepolicy hsizetype="Expanding" vsizetype="MinimumExpanding">
<horstretch>1</horstretch>
<verstretch>1</verstretch>
</sizepolicy>
</property>
<property name="windowTitle">
<string>Form</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout">
<property name="leftMargin">
<number>0</number>
</property>
<property name="topMargin">
<number>0</number>
</property>
<property name="rightMargin">
<number>0</number>
</property>
<property name="bottomMargin">
<number>0</number>
</property>
<item>
<layout class="QHBoxLayout" name="horizontalLayout">
<item>
<widget class="ctkDoubleRangeSlider" name="m_RangeSlider">
<property name="toolTip">
<string>Change transfer function window range.</string>
</property>
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="m_RangeSliderReset">
<property name="sizePolicy">
<sizepolicy hsizetype="Maximum" vsizetype="Fixed">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="maximumSize">
<size>
<width>48</width>
<height>16777215</height>
</size>
</property>
<property name="toolTip">
<string>Resets range to histogram minimum and maximum.</string>
</property>
<property name="text">
<string>Reset</string>
</property>
</widget>
</item>
</layout>
</item>
<item>
<widget class="QWidget" name="m_ScalarOpacityWidget" native="true">
<property name="sizePolicy">
<sizepolicy hsizetype="Preferred" vsizetype="Preferred">
<horstretch>0</horstretch>
<verstretch>3</verstretch>
</sizepolicy>
</property>
<layout class="QVBoxLayout" name="verticalLayout_2">
<property name="leftMargin">
<number>0</number>
</property>
<property name="topMargin">
<number>0</number>
</property>
<property name="rightMargin">
<number>0</number>
</property>
<property name="bottomMargin">
<number>0</number>
</property>
<item>
<widget class="QmitkPiecewiseFunctionCanvas" name="m_ScalarOpacityFunctionCanvas" native="true">
<property name="sizePolicy">
<sizepolicy hsizetype="Expanding" vsizetype="Expanding">
<horstretch>0</horstretch>
<verstretch>1</verstretch>
</sizepolicy>
</property>
<property name="minimumSize">
<size>
<width>0</width>
<height>64</height>
</size>
</property>
<property name="font">
<font/>
</property>
<property name="toolTip">
<string>Left-click to select a point or add a new point.
Hold left mouse button to move selected point.
Click right mouse button to delete a point.</string>
</property>
</widget>
</item>
<item>
<layout class="QHBoxLayout">
<item>
<widget class="QLineEdit" name="m_XEditScalarOpacity">
<property name="enabled">
<bool>true</bool>
</property>
<property name="sizePolicy">
<sizepolicy hsizetype="Maximum" vsizetype="Maximum">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="minimumSize">
<size>
<width>64</width>
<height>0</height>
</size>
</property>
<property name="maximumSize">
<size>
<width>64</width>
<height>16777215</height>
</size>
</property>
<property name="toolTip">
<string>Edit x-coordinate (grayvalue) of currently selected point.</string>
</property>
<property name="text">
<string/>
</property>
<property name="alignment">
<set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="m_textLabelX">
<property name="sizePolicy">
<sizepolicy hsizetype="Minimum" vsizetype="Preferred">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="font">
<font/>
</property>
<property name="toolTip">
<string>Edit x-coordinate (grayvalue) of currently selected point.</string>
</property>
<property name="text">
<string>Grayvalue</string>
</property>
<property name="wordWrap">
<bool>false</bool>
</property>
</widget>
</item>
<item>
<spacer name="horizontalSpacer_2">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>40</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
<item>
<widget class="QLabel" name="m_textLabelY">
<property name="sizePolicy">
<sizepolicy hsizetype="Minimum" vsizetype="Preferred">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="font">
<font/>
</property>
<property name="toolTip">
<string>Edit y-coordinate (opacity) of currently selected point.</string>
</property>
<property name="text">
<string>Opacity</string>
</property>
<property name="alignment">
<set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
</property>
<property name="wordWrap">
<bool>false</bool>
</property>
</widget>
</item>
<item>
<widget class="QLineEdit" name="m_YEditScalarOpacity">
<property name="sizePolicy">
<sizepolicy hsizetype="Maximum" vsizetype="Maximum">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="minimumSize">
<size>
<width>64</width>
<height>0</height>
</size>
</property>
<property name="maximumSize">
<size>
<width>64</width>
<height>16777215</height>
</size>
</property>
<property name="toolTip">
<string>Edit y-coordinate (opacity) of currently selected point.</string>
</property>
<property name="text">
<string/>
</property>
<property name="alignment">
<set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
</property>
</widget>
</item>
</layout>
</item>
</layout>
</widget>
</item>
<item>
<widget class="QWidget" name="m_ColorWidget" native="true">
<property name="sizePolicy">
<sizepolicy hsizetype="Preferred" vsizetype="Preferred">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<layout class="QVBoxLayout" name="verticalLayout_3">
<property name="leftMargin">
<number>0</number>
</property>
<property name="topMargin">
<number>0</number>
</property>
<property name="rightMargin">
<number>0</number>
</property>
<property name="bottomMargin">
<number>0</number>
</property>
<item>
<widget class="QmitkColorTransferFunctionCanvas" name="m_ColorTransferFunctionCanvas" native="true">
<property name="sizePolicy">
<sizepolicy hsizetype="Expanding" vsizetype="Fixed">
<horstretch>0</horstretch>
<verstretch>1</verstretch>
</sizepolicy>
</property>
<property name="minimumSize">
<size>
<width>0</width>
<height>48</height>
</size>
</property>
<property name="font">
<font/>
</property>
<property name="toolTip">
<string>Left-click to select a point or add a new point.
Hold left mouse button to move selected point.
Click right mouse button to delete a point.
Double-click left mouse button to change color of a point.</string>
</property>
</widget>
</item>
<item>
<layout class="QHBoxLayout">
<item>
<widget class="QLineEdit" name="m_XEditColor">
<property name="sizePolicy">
<sizepolicy hsizetype="Maximum" vsizetype="Maximum">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="minimumSize">
<size>
<width>64</width>
<height>0</height>
</size>
</property>
<property name="maximumSize">
<size>
<width>64</width>
<height>16777215</height>
</size>
</property>
<property name="toolTip">
<string>Edit x-coordinate (grayvalue) of currently selected point.</string>
</property>
<property name="text">
<string/>
</property>
<property name="alignment">
<set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="m_textLabelX_3">
<property name="font">
<font/>
</property>
<property name="toolTip">
<string>Edit x-coordinate (grayvalue) of currently selected point.</string>
</property>
<property name="text">
<string>Grayvalue</string>
</property>
<property name="wordWrap">
<bool>false</bool>
</property>
</widget>
</item>
<item>
<spacer name="horizontalSpacer_4">
<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>
</layout>
</widget>
</item>
<item>
<widget class="QWidget" name="m_GradientOpacityWidget" native="true">
<property name="sizePolicy">
<sizepolicy hsizetype="Preferred" vsizetype="Preferred">
<horstretch>0</horstretch>
<verstretch>2</verstretch>
</sizepolicy>
</property>
<layout class="QVBoxLayout" name="verticalLayout_4">
<property name="leftMargin">
<number>0</number>
</property>
<property name="topMargin">
<number>0</number>
</property>
<property name="rightMargin">
<number>0</number>
</property>
<property name="bottomMargin">
<number>0</number>
</property>
<item>
<widget class="QmitkPiecewiseFunctionCanvas" name="m_GradientOpacityCanvas" native="true">
<property name="sizePolicy">
<sizepolicy hsizetype="Expanding" vsizetype="Expanding">
<horstretch>0</horstretch>
<verstretch>1</verstretch>
</sizepolicy>
</property>
<property name="minimumSize">
<size>
<width>0</width>
<height>64</height>
</size>
</property>
<property name="font">
<font/>
</property>
<property name="toolTip">
<string>Left-click to select a point or add a new point.
Hold left mouse button to move selected point.
Click right mouse button to delete a point.</string>
</property>
</widget>
</item>
<item>
<layout class="QHBoxLayout">
<item>
<widget class="QLineEdit" name="m_XEditGradientOpacity">
<property name="sizePolicy">
<sizepolicy hsizetype="Maximum" vsizetype="Maximum">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="minimumSize">
<size>
<width>64</width>
<height>0</height>
</size>
</property>
<property name="maximumSize">
<size>
<width>64</width>
<height>16777215</height>
</size>
</property>
<property name="toolTip">
<string>Edit x-coordinate (grayvalue) of currently selected point.</string>
</property>
<property name="text">
<string/>
</property>
<property name="alignment">
<set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="m_textLabelX_2">
<property name="font">
<font/>
</property>
<property name="toolTip">
<string>Edit x-coordinate (grayvalue) of currently selected point.</string>
</property>
<property name="text">
<string>Grayvalue</string>
</property>
<property name="wordWrap">
<bool>false</bool>
</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>
<item>
<widget class="QLabel" name="m_textLabelY_2">
<property name="font">
<font/>
</property>
<property name="toolTip">
<string>Edit y-coordinate (opacity) of currently selected point.</string>
</property>
<property name="text">
<string>Opacity</string>
</property>
<property name="alignment">
<set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
</property>
<property name="wordWrap">
<bool>false</bool>
</property>
</widget>
</item>
<item>
<widget class="QLineEdit" name="m_YEditGradientOpacity">
<property name="sizePolicy">
<sizepolicy hsizetype="Maximum" vsizetype="Maximum">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="minimumSize">
<size>
<width>64</width>
<height>0</height>
</size>
</property>
<property name="maximumSize">
<size>
<width>64</width>
<height>16777215</height>
</size>
</property>
<property name="toolTip">
<string>Edit y-coordinate (opacity) of currently selected point.</string>
</property>
<property name="text">
<string/>
</property>
<property name="alignment">
<set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
</property>
</widget>
</item>
</layout>
</item>
</layout>
</widget>
</item>
<item>
<spacer name="verticalSpacer">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>0</height>
</size>
</property>
</spacer>
</item>
</layout>
</widget>
<customwidgets>
<customwidget>
<class>QmitkPiecewiseFunctionCanvas</class>
<extends>QWidget</extends>
<header>QmitkPiecewiseFunctionCanvas.h</header>
</customwidget>
<customwidget>
<class>QmitkColorTransferFunctionCanvas</class>
<extends>QWidget</extends>
<header>QmitkColorTransferFunctionCanvas.h</header>
</customwidget>
<customwidget>
- <class>ctkRangeSlider</class>
+ <class>ctkDoubleRangeSlider</class>
<extends>QWidget</extends>
- <header location="global">ctkRangeSlider.h</header>
+ <header location="global">ctkDoubleRangeSlider.h</header>
</customwidget>
</customwidgets>
<resources/>
<connections/>
</ui>