diff --git a/gui_qt/baseformlayer.cpp b/gui_qt/baseformlayer.cpp
index 629de47..b94aac0 100644
--- a/gui_qt/baseformlayer.cpp
+++ b/gui_qt/baseformlayer.cpp
@@ -1,5 +1,68 @@
 #include "baseformlayer.h"
 
-BaseFormLayer::BaseFormLayer(QWidget* parent) : BaseForm(parent, false, true)
+BaseFormLayer::BaseFormLayer(QWidget* parent, Layers* layers) : BaseForm(parent, false, true)
 {
+    _layers_original = layers;
+    _layers_modified = layersCreateCopy(_layers_original);
+}
+
+BaseFormLayer::~BaseFormLayer()
+{
+    layersDelete(_layers_modified);
+}
+
+void BaseFormLayer::configChangeEvent()
+{
+    /*texturesLayerCopyDefinition(&_layer, texturesGetLayer(&_definition, currentLayer()));
+    
+    layersValidate(_layers_modified);*/
+    BaseForm::configChangeEvent();
+}
+
+QStringList BaseFormLayer::getLayers()
+{
+    QStringList result;
+    
+    for (int i = 0; i < layersCount(_layers_modified); i++)
+    {
+        result << QString::fromUtf8(layersGetName(_layers_modified, i));
+    }
+    
+    return result;
+}
+
+void BaseFormLayer::layerAddedEvent()
+{
+    if (layersAddLayer(_layers_modified, NULL) >= 0)
+    {
+        BaseForm::layerAddedEvent();
+    }
+}
+
+void BaseFormLayer::layerDeletedEvent(int layer)
+{
+    layersDeleteLayer(_layers_modified, layer);
+    
+    BaseForm::layerDeletedEvent(layer);
+}
+
+void BaseFormLayer::layerMovedEvent(int layer, int new_position)
+{
+    layersMove(_layers_modified, layer, new_position);
+    
+    BaseForm::layerMovedEvent(layer, new_position);
+}
+
+void BaseFormLayer::layerRenamedEvent(int layer, QString new_name)
+{
+    layersSetName(_layers_modified, layer, new_name.toUtf8().data());
+    
+    BaseForm::layerRenamedEvent(layer, new_name);
+}
+
+void BaseFormLayer::layerSelectedEvent(int layer)
+{
+    //texturesLayerCopyDefinition(texturesGetLayer(&_definition, layer), &_layer);
+    
+    BaseForm::layerSelectedEvent(layer);
 }
diff --git a/gui_qt/baseformlayer.h b/gui_qt/baseformlayer.h
index a4aef00..1b3ce35 100644
--- a/gui_qt/baseformlayer.h
+++ b/gui_qt/baseformlayer.h
@@ -4,14 +4,30 @@
 /* Base form, with automatic layer control */
 
 #include "baseform.h"
+#include "../lib_paysages/layers.h"
 
 class BaseFormLayer:public BaseForm
 {
     Q_OBJECT
 
 public:
-    BaseFormLayer(QWidget* parent);
+    BaseFormLayer(QWidget* parent, Layers* layers);
+    ~BaseFormLayer();
 
+protected:
+    virtual QStringList getLayers();
+    virtual void layerAddedEvent();
+    virtual void layerDeletedEvent(int layer);
+    virtual void layerMovedEvent(int layer, int new_position);
+    virtual void layerRenamedEvent(int layer, QString new_name);
+    virtual void layerSelectedEvent(int layer);
+
+protected slots:
+    virtual void configChangeEvent();
+
+private:
+    Layers* _layers_original;
+    Layers* _layers_modified;
 };
 
 #endif
diff --git a/gui_qt/dialoglayers.cpp b/gui_qt/dialoglayers.cpp
index df7d29d..2954d58 100644
--- a/gui_qt/dialoglayers.cpp
+++ b/gui_qt/dialoglayers.cpp
@@ -16,7 +16,7 @@ DialogLayers::DialogLayers(QWidget *parent, Layers* layers, QString title, FormL
     
     setLayout(new QVBoxLayout());
     
-    _form = form_builder(this);
+    _form = form_builder(this, _layers);
     _form->hideButtons();
     layout()->addWidget(_form);
     
diff --git a/gui_qt/dialoglayers.h b/gui_qt/dialoglayers.h
index b2397a2..5953e46 100644
--- a/gui_qt/dialoglayers.h
+++ b/gui_qt/dialoglayers.h
@@ -11,7 +11,7 @@
 class DialogLayers;
 class BaseFormLayer;
 
-typedef BaseFormLayer* (*FormLayerBuilder)(DialogLayers* parent);
+typedef BaseFormLayer* (*FormLayerBuilder)(DialogLayers* parent, Layers* layers);
 
 class DialogLayers : public DialogWithPreview
 {
diff --git a/gui_qt/formterrain.cpp b/gui_qt/formterrain.cpp
index 72e1ebc..664acdb 100644
--- a/gui_qt/formterrain.cpp
+++ b/gui_qt/formterrain.cpp
@@ -141,9 +141,9 @@ private:
 };
 
 /**************** Form ****************/
-static BaseFormLayer* _formBuilderCanvas(DialogLayers* parent)
+static BaseFormLayer* _formBuilderCanvas(DialogLayers* parent, Layers* layers)
 {
-    return new FormTerrainCanvas(parent);
+    return new FormTerrainCanvas(parent, layers);
 }
 
 FormTerrain::FormTerrain(QWidget *parent):
diff --git a/gui_qt/formterraincanvas.cpp b/gui_qt/formterraincanvas.cpp
index c40497a..cc3d38b 100644
--- a/gui_qt/formterraincanvas.cpp
+++ b/gui_qt/formterraincanvas.cpp
@@ -1,8 +1,8 @@
 #include "formterraincanvas.h"
 
 /**************** Form ****************/
-FormTerrainCanvas::FormTerrainCanvas(QWidget *parent):
-    BaseFormLayer(parent)
+FormTerrainCanvas::FormTerrainCanvas(QWidget *parent, Layers* layers):
+    BaseFormLayer(parent, layers)
 {
 }
 
diff --git a/gui_qt/formterraincanvas.h b/gui_qt/formterraincanvas.h
index 3f3a2c0..4b8ccde 100644
--- a/gui_qt/formterraincanvas.h
+++ b/gui_qt/formterraincanvas.h
@@ -10,7 +10,7 @@ class FormTerrainCanvas : public BaseFormLayer
     Q_OBJECT
 
 public:
-    FormTerrainCanvas(QWidget* parent);
+    FormTerrainCanvas(QWidget* parent, Layers* layers);
 
 public slots:
     virtual void revertConfig();
diff --git a/lib_paysages/layers.c b/lib_paysages/layers.c
index d71f441..2e4f802 100644
--- a/lib_paysages/layers.c
+++ b/lib_paysages/layers.c
@@ -33,6 +33,13 @@ Layers* layersCreate(LayerType type, int max_layer_count)
     return result;
 }
 
+Layers* layersCreateCopy(Layers* original)
+{
+    Layers* result = layersCreate(original->type, original->max_count);
+    layersCopy(original, result);
+    return result;
+}
+
 void layersDelete(Layers* layers)
 {
     int i;
diff --git a/lib_paysages/layers.h b/lib_paysages/layers.h
index 13a2384..6df2c1c 100644
--- a/lib_paysages/layers.h
+++ b/lib_paysages/layers.h
@@ -28,6 +28,7 @@ typedef struct {
 typedef struct Layers Layers;
 
 Layers* layersCreate(LayerType type, int max_layer_count);
+Layers* layersCreateCopy(Layers* original);
 void layersDelete(Layers* layers);
 
 void layersCopy(Layers* source, Layers* destination);