Fix Color Wheel background

dependencies/ColorWheel/ColorWheel.cpp

@@ -343,6 +343,8 @@ void ColorWheel::drawWheelImage(const QSize &newSize)
     QRegion subRe( r/2, r/2, r-tmp, r-tmp, QRegion::Ellipse );
     subRe.translate( x_offset - (r-tmp)/2, y_offset - (r-tmp)/2);
     wheelRegion -= subRe;
+
+    CleanWheel = QPixmap().fromImage(wheelImage);
 }
 
 void ColorWheel::drawSquareImage(const int &hue)
@@ -399,6 +401,7 @@ void ColorWheel::drawSquareImage(const int &hue)
     | Calculate square region                               |
     \*-----------------------------------------------------*/
     squareRegion = QRegion(x_offset + m, y_offset + m, SquareWidth, SquareWidth);
+    CleanSquare = squareImage;
 }
 
 void ColorWheel::drawIndicator(const int &hue)
@@ -461,6 +464,8 @@ void ColorWheel::drawPicker(const QColor &color)
 
 void ColorWheel::composeWheel()
 {
+    wheel = CleanWheel;
+    squareImage = CleanSquare;
     QPainter composePainter(&wheel);
     composePainter.drawImage(0, 0, wheelImage);
     composePainter.drawImage(squareRegion.boundingRect().topLeft(), squareImage);

dependencies/ColorWheel/ColorWheel.h

@@ -42,6 +42,9 @@ private:
     int x_offset;
     int y_offset;
 
+    QPixmap CleanWheel;
+    QImage CleanSquare;
+
     QColor posColor(const QPoint &point);
     void drawWheelImage(const QSize &newSize);
     void drawIndicator(const int &hue);