diff --git a/gui_gtk/tab_water.c b/gui_gtk/tab_water.c
index 2cd4773..d57c5a6 100644
--- a/gui_gtk/tab_water.c
+++ b/gui_gtk/tab_water.c
@@ -136,12 +136,12 @@ static void _cbTransparencyDepthChanged(GtkRange* range, gpointer data)
 
 static void _cbColorChanged(GtkColorButton* colorbutton, gpointer data)
 {
-    GdkRGBA col;
+    GdkColor col;
 
-    gtk_color_button_get_rgba(colorbutton, &col);
-    _definition.main_color.r = col.red;
-    _definition.main_color.g = col.green;
-    _definition.main_color.b = col.blue;
+    gtk_color_button_get_color(colorbutton, &col);
+    _definition.main_color.r = (double)col.red / 65535.0;
+    _definition.main_color.g = (double)col.green / 65535.0;
+    _definition.main_color.b = (double)col.blue / 65535.0;
     _definition.main_color.a = 1.0;
 
     guiPreviewRedraw(_preview_render);
@@ -150,12 +150,12 @@ static void _cbColorChanged(GtkColorButton* colorbutton, gpointer data)
 
 static void _cbColorDepthChanged(GtkColorButton* colorbutton, gpointer data)
 {
-    GdkRGBA col;
+    GdkColor col;
 
-    gtk_color_button_get_rgba(colorbutton, &col);
-    _definition.depth_color.r = col.red;
-    _definition.depth_color.g = col.green;
-    _definition.depth_color.b = col.blue;
+    gtk_color_button_get_color(colorbutton, &col);
+    _definition.depth_color.r = (double)col.red / 65535.0;
+    _definition.depth_color.g = (double)col.green / 65535.0;
+    _definition.depth_color.b = (double)col.blue / 65535.0;
     _definition.depth_color.a = 1.0;
 
     guiPreviewRedraw(_preview_render);
@@ -164,7 +164,7 @@ static void _cbColorDepthChanged(GtkColorButton* colorbutton, gpointer data)
 
 static void _cbRevertConfig(GtkWidget* widget, gpointer data)
 {
-    GdkRGBA col;
+    GdkColor col;
 
     waterCopyDefinition(waterGetDefinition(), &_definition);
 
@@ -172,16 +172,14 @@ static void _cbRevertConfig(GtkWidget* widget, gpointer data)
     gtk_range_set_value(GTK_RANGE(GET_WIDGET("water_transparency")), _definition.transparency);
     gtk_range_set_value(GTK_RANGE(GET_WIDGET("water_reflection")), _definition.reflection);
     gtk_range_set_value(GTK_RANGE(GET_WIDGET("water_transparency_depth")), _definition.transparency_depth);
-    col.red = _definition.main_color.r;
-    col.green = _definition.main_color.g;
-    col.blue = _definition.main_color.b;
-    col.alpha = 1.0;
-    gtk_color_button_set_rgba(GTK_COLOR_BUTTON(GET_WIDGET("water_color")), &col);
-    col.red = _definition.depth_color.r;
-    col.green = _definition.depth_color.g;
-    col.blue = _definition.depth_color.b;
-    col.alpha = 1.0;
-    gtk_color_button_set_rgba(GTK_COLOR_BUTTON(GET_WIDGET("water_color_depth")), &col);
+    col.red = _definition.main_color.r * 65535.0;
+    col.green = _definition.main_color.g * 65535.0;
+    col.blue = _definition.main_color.b * 65535.0;
+    gtk_color_button_set_color(GTK_COLOR_BUTTON(GET_WIDGET("water_color")), &col);
+    col.red = _definition.depth_color.r * 65535.0;
+    col.green = _definition.depth_color.g * 65535.0;
+    col.blue = _definition.depth_color.b * 65535.0;
+    gtk_color_button_set_color(GTK_COLOR_BUTTON(GET_WIDGET("water_color_depth")), &col);
 
     guiPreviewRedraw(_preview_render);
     guiPreviewRedraw(_preview_coverage);
diff --git a/gui_qt/baseform.cpp b/gui_qt/baseform.cpp
index a0d6c6c..95b5f87 100644
--- a/gui_qt/baseform.cpp
+++ b/gui_qt/baseform.cpp
@@ -1,46 +1,10 @@
 #include "baseform.h"
+#include "inputdouble.h"
 
 #include <QVBoxLayout>
 #include <QHBoxLayout>
 #include <QGridLayout>
 #include <QLabel>
-#include <QSlider>
-
-class DoubleSliderWidget:public QWidget
-{
-public:
-    DoubleSliderWidget(QWidget* parent, double* value, double min, double max, double small_step, double large_step):
-        QWidget(parent),
-        value(value), min(min), max(max), small_step(small_step), large_step(large_step)
-    {
-        setObjectName("_form_doubleslider_");
-
-        setLayout(new QHBoxLayout());
-
-        slider = new QSlider(this);
-        slider->setOrientation(Qt::Horizontal);
-        slider->setMinimum(min / small_step);
-        slider->setMaximum(max / small_step);
-        slider->setValue(*value / small_step);
-        slider->setTickInterval(large_step / small_step);
-        slider->setTickPosition(QSlider::TicksBelow);
-
-        layout()->addWidget(slider);
-    }
-
-    void revert()
-    {
-        slider->setValue(*value / small_step);
-    }
-
-private:
-    QSlider* slider;
-    double* value;
-    double min;
-    double max;
-    double small_step;
-    double large_step;
-};
 
 BaseForm::BaseForm(QWidget* parent) :
     QWidget(parent)
@@ -72,19 +36,24 @@ BaseForm::BaseForm(QWidget* parent) :
     this->setLayout(vlayout);
 }
 
-void BaseForm::revertConfig()
+void BaseForm::applyConfigPreview()
 {
     QList<Preview*> list_previews = previews->findChildren<Preview*>("_form_preview_");
     for (int i = 0; i < list_previews.size(); i++)
     {
         list_previews[i]->redraw();
     }
+}
 
-    QList<DoubleSliderWidget*> list_doubles = form->findChildren<DoubleSliderWidget*>("_form_doubleslider_");
+void BaseForm::revertConfig()
+{
+    QList<InputDouble*> list_doubles = form->findChildren<InputDouble*>("_form_doubleslider_");
     for (int i = 0; i < list_doubles.size(); i++)
     {
         list_doubles[i]->revert();
     }
+
+    BaseForm::applyConfigPreview();
 }
 
 void BaseForm::addPreview(Preview* preview, QString label)
@@ -94,11 +63,19 @@ void BaseForm::addPreview(Preview* preview, QString label)
     preview->setObjectName("_form_preview_");
 }
 
-void BaseForm::addDoubleSlider(QString label, double* value, double min, double max, double small_step, double large_step)
+void BaseForm::addInput(BaseInput* input)
 {
     QGridLayout* layout = (QGridLayout*)form->layout();
     int row = layout->rowCount();
 
-    layout->addWidget(new QLabel(label, form), row, 0);
-    layout->addWidget(new DoubleSliderWidget(form, value, min, max, small_step, large_step), row, 1);
+    layout->addWidget(input->label(), row, 0);
+    layout->addWidget(input->preview(), row, 1);
+    layout->addWidget(input->control(), row, 2);
+
+    connect(input, SIGNAL(valueChanged()), this, SLOT(applyConfigPreview()));
+}
+
+void BaseForm::addInputDouble(QString label, double* value, double min, double max, double small_step, double large_step)
+{
+    addInput(new InputDouble(form, label, value, min, max, small_step, large_step));
 }
diff --git a/gui_qt/baseform.h b/gui_qt/baseform.h
index 274950f..625864e 100644
--- a/gui_qt/baseform.h
+++ b/gui_qt/baseform.h
@@ -3,18 +3,23 @@
 
 #include <QWidget>
 #include "preview.h"
+#include "baseinput.h"
 
 class BaseForm:public QWidget
 {
+    Q_OBJECT
+
 public:
     BaseForm(QWidget* parent);
 
 public slots:
     virtual void revertConfig();
+    virtual void applyConfigPreview();
 
 protected:
     void addPreview(Preview* preview, QString label);
-    void addDoubleSlider(QString label, double* value, double min, double max, double small_step, double large_step);
+    void addInput(BaseInput* input);
+    void addInputDouble(QString label, double* value, double min, double max, double small_step, double large_step);
 
 private:
     QWidget* previews;
diff --git a/gui_qt/baseinput.cpp b/gui_qt/baseinput.cpp
new file mode 100644
index 0000000..44d0f33
--- /dev/null
+++ b/gui_qt/baseinput.cpp
@@ -0,0 +1,9 @@
+#include "baseinput.h"
+
+#include <QLabel>
+
+BaseInput::BaseInput(QWidget* form, QString label):
+    QObject(form)
+{
+    _label = new QLabel(label);
+}
diff --git a/gui_qt/baseinput.h b/gui_qt/baseinput.h
new file mode 100644
index 0000000..223e946
--- /dev/null
+++ b/gui_qt/baseinput.h
@@ -0,0 +1,32 @@
+#ifndef _GUI_QT_BASEINPUT_H_
+#define _GUI_QT_BASEINPUT_H_
+
+#include <QWidget>
+#include <QSlider>
+
+class BaseInput:public QObject
+{
+    Q_OBJECT
+
+public:
+    BaseInput(QWidget* form, QString label);
+    inline QWidget* label() {return _label;}
+    inline QWidget* preview() {return _preview;}
+    inline QWidget* control() {return _control;}
+
+public slots:
+    virtual void revert() = 0;
+
+protected slots:
+    virtual void applyValue() = 0;
+
+signals:
+    void valueChanged();
+
+protected:
+    QWidget* _label;
+    QWidget* _preview;
+    QWidget* _control;
+};
+
+#endif // _GUI_QT_BASEINPUT_H_
diff --git a/gui_qt/formwater.cpp b/gui_qt/formwater.cpp
index 6e60a9a..cd9c42f 100644
--- a/gui_qt/formwater.cpp
+++ b/gui_qt/formwater.cpp
@@ -131,33 +131,22 @@ FormWater::FormWater(QWidget *parent) :
     addPreview(previewCoverage, QString("Coverage preview"));
     addPreview(previewColor, QString("Color preview"));
 
-    addDoubleSlider("Height", &_definition.height, -20.0, 20.0, 0.1, 1.0);
-    addDoubleSlider("Transparency", &_definition.transparency, 0.0, 1.0, 0.001, 0.1);
-    addDoubleSlider("Reflection", &_definition.reflection, 0.0, 1.0, 0.001, 0.1);
-    addDoubleSlider("Depth filtering", &_definition.transparency_depth, 0.0, 100.0, 0.5, 5.0);
+    addInputDouble("Height", &_definition.height, -20.0, 20.0, 0.1, 1.0);
+    addInputDouble("Transparency", &_definition.transparency, 0.0, 1.0, 0.001, 0.1);
+    addInputDouble("Reflection", &_definition.reflection, 0.0, 1.0, 0.001, 0.1);
+    addInputDouble("Depth filtering", &_definition.transparency_depth, 0.0, 100.0, 0.5, 5.0);
 
     revertConfig();
 }
 
-void FormWater::configChange()
-{
-    /*_definition.height = (double)findChild<QSlider*>("water_height")->value() / 10.0;
-    _definition.transparency = (double)findChild<QSlider*>("water_transparency")->value() / 1000.0;
-    _definition.reflection = (double)findChild<QSlider*>("water_reflection")->value() / 1000.0;
-    _definition.transparency_depth = (double)findChild<QSlider*>("water_depth_limit")->value() / 10.0;
-
-    previewCoverage->redraw();
-    previewColor->redraw();*/
-}
-
-void FormWater::applyConfig()
-{
-    waterSetDefinition(_definition);
-    //guiUpdate();
-}
-
 void FormWater::revertConfig()
 {
     waterCopyDefinition(waterGetDefinition(), &_definition);
     BaseForm::revertConfig();
 }
+
+/*void FormWater::applyConfig()
+{
+    waterSetDefinition(_definition);
+    //guiUpdate();
+}*/
diff --git a/gui_qt/formwater.h b/gui_qt/formwater.h
index 7aa596c..e40c408 100644
--- a/gui_qt/formwater.h
+++ b/gui_qt/formwater.h
@@ -14,8 +14,6 @@ public:
 
 public slots:
     virtual void revertConfig();
-    void configChange();
-    void applyConfig();
 
 private:
     Preview* previewCoverage;
diff --git a/gui_qt/inputcolor.cpp b/gui_qt/inputcolor.cpp
new file mode 100644
index 0000000..f5e2d84
--- /dev/null
+++ b/gui_qt/inputcolor.cpp
@@ -0,0 +1,22 @@
+#include "inputcolor.h"
+
+#include <QLabel>
+
+InputColor::InputColor(QWidget* form, QString label, Color color):
+    BaseInput(form, label),
+    _color(color)
+{
+    setObjectName("_inputcolor_");
+
+    _preview = new QLabel(form);
+    _control = new QLabel(form);
+}
+
+void InputColor::applyValue()
+{
+    emit(valueChanged());
+}
+
+void InputColor::revert()
+{
+}
diff --git a/gui_qt/inputcolor.h b/gui_qt/inputcolor.h
new file mode 100644
index 0000000..f998e96
--- /dev/null
+++ b/gui_qt/inputcolor.h
@@ -0,0 +1,26 @@
+#ifndef _GUI_QT_INPUTCOLOR_H_
+#define _GUI_QT_INPUTCOLOR_H_
+
+#include <QWidget>
+#include "baseinput.h"
+
+#include "../lib_paysages/shared/types.h"
+
+class InputColor:public BaseInput
+{
+    Q_OBJECT
+
+public:
+    InputColor(QWidget* form, QString label, Color value);
+
+public slots:
+    virtual void revert();
+
+protected slots:
+    virtual void applyValue();
+
+private:
+    Color _color;
+};
+
+#endif // _GUI_QT_INPUTCOLOR_H_
diff --git a/gui_qt/inputdouble.cpp b/gui_qt/inputdouble.cpp
new file mode 100644
index 0000000..1840702
--- /dev/null
+++ b/gui_qt/inputdouble.cpp
@@ -0,0 +1,40 @@
+#include "inputdouble.h"
+
+#include <QLabel>
+
+InputDouble::InputDouble(QWidget* form, QString label, double* value, double min, double max, double small_step, double large_step):
+    BaseInput(form, label),
+    value(value), min(min), max(max), small_step(small_step), large_step(large_step)
+{
+    setObjectName("_form_doubleslider_");
+
+    slider = new QSlider(form);
+
+    slider->setOrientation(Qt::Horizontal);
+    slider->setMinimumWidth(150);
+    slider->setMaximumWidth(400);
+
+    slider->setMinimum(min / small_step);
+    slider->setMaximum(max / small_step);
+    slider->setValue(*value / small_step);
+
+    slider->setTickInterval(large_step / small_step);
+    slider->setTickPosition(QSlider::TicksBelow);
+
+    connect(slider, SIGNAL(valueChanged(int)), this, SLOT(applyValue()));
+
+    _preview = new QLabel(form);
+    _control = slider;
+}
+
+void InputDouble::applyValue()
+{
+    *value = ((double)slider->value()) * small_step;
+    ((QLabel*)_preview)->setText(QString("%1").arg(*value));
+    emit(valueChanged());
+}
+
+void InputDouble::revert()
+{
+    slider->setValue(*value / small_step);
+}
diff --git a/gui_qt/inputdouble.h b/gui_qt/inputdouble.h
new file mode 100644
index 0000000..b706609
--- /dev/null
+++ b/gui_qt/inputdouble.h
@@ -0,0 +1,30 @@
+#ifndef _GUI_QT_INPUTDOUBLE_H_
+#define _GUI_QT_INPUTDOUBLE_H_
+
+#include <QWidget>
+#include <QSlider>
+#include "baseinput.h"
+
+class InputDouble:public BaseInput
+{
+    Q_OBJECT
+
+public:
+    InputDouble(QWidget* form, QString label, double* value, double min, double max, double small_step, double large_step);
+
+public slots:
+    virtual void revert();
+
+protected slots:
+    virtual void applyValue();
+
+private:
+    QSlider* slider;
+    double* value;
+    double min;
+    double max;
+    double small_step;
+    double large_step;
+};
+
+#endif // _GUI_QT_INPUTDOUBLE_H_
diff --git a/gui_qt/main.cc b/gui_qt/main.cc
deleted file mode 100644
index 279d6fa..0000000
--- a/gui_qt/main.cc
+++ /dev/null
@@ -1,19 +0,0 @@
-#include <QApplication>
-#include "mainwindow.h"
-#include "preview.h"
-
-#include "../lib_paysages/shared/functions.h"
-
-int main(int argc, char** argv)
-{
-    paysagesInit();
-
-    QApplication app(argc, argv);
-    MainWindow window;
-
-    window.show();
-
-    Preview::startUpdater();
-
-    return app.exec();
-}
diff --git a/gui_qt/mainwindow.cpp b/gui_qt/mainwindow.cpp
index aff3226..606ab59 100644
--- a/gui_qt/mainwindow.cpp
+++ b/gui_qt/mainwindow.cpp
@@ -1,20 +1,30 @@
+#include <QApplication>
 #include "mainwindow.h"
 #include "formwater.h"
-#include "ui_mainwindow.h"
+
+#include "../lib_paysages/shared/functions.h"
+
+int main(int argc, char** argv)
+{
+    paysagesInit();
+
+    QApplication app(argc, argv);
+    MainWindow window;
+
+    window.show();
+
+    Preview::startUpdater();
+
+    return app.exec();
+}
 
 MainWindow::MainWindow(QWidget *parent) :
-    QMainWindow(parent),
-    ui(new Ui::MainWindow)
+    QMainWindow(parent)
 {
     QTabWidget* tabs;
 
-    ui->setupUi(this);
-
-    tabs = this->findChild<QTabWidget*>("tabWidget");
+    tabs = new QTabWidget(this);
     tabs->addTab(new FormWater(tabs), "Water");
-}
 
-MainWindow::~MainWindow()
-{
-    delete ui;
+    setCentralWidget(tabs);
 }
diff --git a/gui_qt/mainwindow.h b/gui_qt/mainwindow.h
index c9fd6a9..fb5c048 100644
--- a/gui_qt/mainwindow.h
+++ b/gui_qt/mainwindow.h
@@ -13,10 +13,6 @@ class MainWindow : public QMainWindow
 
 public:
     explicit MainWindow(QWidget *parent = 0);
-    ~MainWindow();
-
-private:
-    Ui::MainWindow *ui;
 };
 
 #endif // MAINWINDOW_H
diff --git a/gui_qt/mainwindow.ui b/gui_qt/mainwindow.ui
deleted file mode 100644
index 71ff3f9..0000000
--- a/gui_qt/mainwindow.ui
+++ /dev/null
@@ -1,105 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<ui version="4.0">
- <class>MainWindow</class>
- <widget class="QMainWindow" name="MainWindow">
-  <property name="geometry">
-   <rect>
-    <x>0</x>
-    <y>0</y>
-    <width>744</width>
-    <height>673</height>
-   </rect>
-  </property>
-  <property name="sizePolicy">
-   <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
-    <horstretch>0</horstretch>
-    <verstretch>0</verstretch>
-   </sizepolicy>
-  </property>
-  <property name="minimumSize">
-   <size>
-    <width>744</width>
-    <height>673</height>
-   </size>
-  </property>
-  <property name="maximumSize">
-   <size>
-    <width>744</width>
-    <height>673</height>
-   </size>
-  </property>
-  <property name="baseSize">
-   <size>
-    <width>744</width>
-    <height>673</height>
-   </size>
-  </property>
-  <property name="windowTitle">
-   <string>Paysages</string>
-  </property>
-  <widget class="QWidget" name="centralwidget">
-   <widget class="QTabWidget" name="tabWidget">
-    <property name="geometry">
-     <rect>
-      <x>0</x>
-      <y>0</y>
-      <width>741</width>
-      <height>621</height>
-     </rect>
-    </property>
-    <property name="currentIndex">
-     <number>-1</number>
-    </property>
-   </widget>
-  </widget>
-  <widget class="QMenuBar" name="menubar">
-   <property name="geometry">
-    <rect>
-     <x>0</x>
-     <y>0</y>
-     <width>744</width>
-     <height>25</height>
-    </rect>
-   </property>
-   <widget class="QMenu" name="menuFichier">
-    <property name="title">
-     <string>File</string>
-    </property>
-    <addaction name="actionNewx"/>
-    <addaction name="actionSave"/>
-    <addaction name="actionLoad"/>
-    <addaction name="actionQuit"/>
-   </widget>
-   <widget class="QMenu" name="menuAbout">
-    <property name="title">
-     <string>About...</string>
-    </property>
-   </widget>
-   <addaction name="menuFichier"/>
-   <addaction name="menuAbout"/>
-  </widget>
-  <widget class="QStatusBar" name="statusbar"/>
-  <action name="actionNewx">
-   <property name="text">
-    <string>New</string>
-   </property>
-  </action>
-  <action name="actionSave">
-   <property name="text">
-    <string>Save</string>
-   </property>
-  </action>
-  <action name="actionLoad">
-   <property name="text">
-    <string>Load</string>
-   </property>
-  </action>
-  <action name="actionQuit">
-   <property name="text">
-    <string>Quit</string>
-   </property>
-  </action>
- </widget>
- <resources/>
- <connections/>
-</ui>
diff --git a/gui_qt/paysages-qt.pro b/gui_qt/paysages-qt.pro
index a34cda8..105f403 100644
--- a/gui_qt/paysages-qt.pro
+++ b/gui_qt/paysages-qt.pro
@@ -15,10 +15,16 @@ HEADERS += ../lib_paysages/shared/functions.h ../lib_paysages/shared/types.h \
     mainwindow.h \
     formwater.h \
     preview.h \
-    baseform.h
-FORMS += mainwindow.ui
-SOURCES += main.cc \
+    baseform.h \
+    inputdouble.h \
+    baseinput.h \
+    inputcolor.h
+FORMS +=
+SOURCES += \
     mainwindow.cpp \
     formwater.cpp \
     preview.cpp \
-    baseform.cpp
+    baseform.cpp \
+    inputdouble.cpp \
+    baseinput.cpp \
+    inputcolor.cpp
diff --git a/gui_qt/preview.h b/gui_qt/preview.h
index 6fdc690..c1439e2 100644
--- a/gui_qt/preview.h
+++ b/gui_qt/preview.h
@@ -7,6 +7,8 @@
 
 class Preview:public QWidget
 {
+    Q_OBJECT
+
 public:
     Preview(QWidget* parent);
     static void startUpdater();