nearly all tests but without benchmark

src/Image/IntelliImage.cpp

@@ -59,13 +59,16 @@ void IntelliImage::drawPixel(const QPoint &p1, const QColor& color){
                 this->imageData = this->imageData.convertToFormat(QImage::Format_ARGB32);
         }
         // Used to draw on the widget
-		QPainter painter(&imageData);
+        QPainter* painter = new QPainter(&imageData);
 
 		// Set the current settings for the pen
-		painter.setPen(QPen(color, 1, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
+        painter->setPen(QPen(color, 1, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
 
 		// Draw a line from the last registered point to the current
-		painter.drawPoint(p1);
+        painter->drawPoint(p1);
+        delete painter;
+        painter = nullptr;
+
         if(fastRenderering){
                this->imageData = this->imageData.convertToFormat(QImage::Format_Indexed8);
         }
@@ -76,12 +79,15 @@ void IntelliImage::drawPoint(const QPoint &p1, const QColor& color, const int& p
                  this->imageData = this->imageData.convertToFormat(QImage::Format_ARGB32);
         }
         // Used to draw on the widget
-		QPainter painter(&imageData);
+        QPainter* painter = new QPainter(&imageData);
 
 		// Set the current settings for the pen
-		painter.setPen(QPen(color, penWidth, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
+        painter->setPen(QPen(color, penWidth, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
 		// Draw a line from the last registered point to the current
-		painter.drawPoint(p1);
+        painter->drawPoint(p1);
+        delete painter;
+
+        painter = nullptr;
         if(fastRenderering){
                this->imageData = this->imageData.convertToFormat(QImage::Format_Indexed8);
         }
@@ -92,13 +98,16 @@ void IntelliImage::drawLine(const QPoint &p1, const QPoint& p2, const QColor& co
                  this->imageData =  this->imageData.convertToFormat(QImage::Format_ARGB32);
         }
         // Used to draw on the widget
-		QPainter painter(&imageData);
+        QPainter* painter = new QPainter(&imageData);
 
 		// Set the current settings for the pen
-		painter.setPen(QPen(color, penWidth, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
+        painter->setPen(QPen(color, penWidth, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
 
 		// Draw a line from the last registered point to the current
-		painter.drawLine(p1, p2);
+        painter->drawLine(p1, p2);
+        delete painter;
+        painter = nullptr;
+
         if(fastRenderering){
                this->imageData = this->imageData.convertToFormat(QImage::Format_Indexed8);
         }

src/Layer/PaintingArea.cpp

@@ -67,7 +67,7 @@ int PaintingArea::addLayer(int width, int height, int widthOffset, int heightOff
 
 
 void PaintingArea::deleteLayer(int idx){
-		if(idx<static_cast<int>(layerBundle.size())) {
+        if(idx < static_cast<int>(layerBundle.size())&&idx>=0) {
 				this->layerBundle.erase(layerBundle.begin()+idx);
                 if(activeLayer>=idx) {
 						activeLayer--;
@@ -93,9 +93,11 @@ void PaintingArea::setLayerActive(int idx){
 
 void PaintingArea::setLayerAlpha(int idx, int alpha){
 		if(idx>=0&&idx<static_cast<int>(layerBundle.size())) {
+                if(alpha>=0 && alpha<=255) {
                         layerBundle[static_cast<size_t>(idx)].alpha=alpha;
                 }
 		}
+}
 
 // Used to load the image and place it in the widget
 bool PaintingArea::open(const QString &filePath){
@@ -138,6 +140,12 @@ void PaintingArea::floodFill(int r, int g, int b, int a){
 		if(this->activeLayer==-1) {
 				return;
 		}
+        if(r >255 || g>255|| b>255 || a>255){
+            return;
+        }
+        if(r < 0 || g < 0|| b < 0 || a < 0){
+            return;
+        }
 		IntelliImage* active = layerBundle[static_cast<size_t>(activeLayer)].image;
 		active->drawPlain(QColor(r, g, b, a));
 		update();

src/Layer/PaintingArea.h

@@ -135,7 +135,7 @@ public:
     void movePositionActive(int x, int y);
     /*!
      * \brief The moveActiveLayer moves the active layer to a specific position in the layer stack
-     * \param idx   - The index of the new position the layer should be in
+     * \param idx   - The direction the layer should move
      */
     void moveActiveLayer(int idx);
 

src/Tool/IntelliToolFloodFill.cpp

@@ -34,6 +34,9 @@ void IntelliToolFloodFill::onMouseLeftPressed(int x, int y){
 
 		QColor oldColor = this->activeLayer->image->getPixelColor(start);
         QColor newColor = this->colorPicker->getFirstColor();
+        if(newColor == oldColor){
+            return;
+        }
 		Canvas->image->drawPixel(start,newColor);
 
 		QPoint left, right, top, down;