FIxed all bugs and removed dead code

my job is done here
ready to be merge

src/Layer/PaintingArea.h

@@ -102,8 +102,9 @@ int addLayerAt(int idx, int width, int height, int widthOffset=0, int heightOffs
 /*!
  * \brief The deleteLayer method removes a layer at a given idx
  * \param idx - The index of the layer to be removed
+ * \param isTool - Is the flag for when a tool uses this function.
  */
-void deleteLayer(int idx);
+void deleteLayer(int idx, bool isTool = false);
 /*!
  * \brief The setLayerToActive method marks a specific layer as active
  * \param idx - The index of the layer to be active
@@ -120,14 +121,6 @@ void setLayerAlpha(int idx, int alpha);
  * \param idx - represents the number of the layer with should be transformed
  */
 void setPolygon(int idx);
-/*!
- * \brief The floodFill method fills a the active layer with a given color
- * \param r     - Red value of the color the layer should be filled with
- * \param g     - Green value of the color the layer should be filled with
- * \param b     - Blue value of the color the layer should be filled with
- * \param a     - Alpha value of the color the layer should be filled with
- */
-void floodFill(int r, int g, int b, int a);
 /*!
  * \brief The movePositionActive method moves the active layer to certain position
  * \param x     - The x value the new center of the layer should be at
@@ -226,6 +219,8 @@ QImage* Canvas;
 int maxWidth;
 int maxHeight;
 
+bool isSettingPolygon = false;
+
 IntelliRenderSettings renderSettings;
 IntelliTool* Tool;
 IntelliPhotoGui* DummyGui;
@@ -239,6 +234,9 @@ void resizeLayer(QImage*image_res, const QSize &newSize);
 
 // Helper for Tool
 bool createTempTopLayer(int idx);
+
+//this function is needed to avoid errors in inputhandeling if a layer has changed
+void updateTools();
 };
 
 #endif