Fix dab inaccuracy of Sharpness brushes when outline preview snapping is disabled

BUG:458361


(cherry picked from commit cca625b7)

plugins/paintops/libpaintop/kis_current_outline_fetcher.cpp

@@ -150,7 +150,7 @@ KisOptimizedBrushOutline KisCurrentOutlineFetcher::fetchOutline(const KisPaintIn
     }
 
     QPointF pos = info.pos();
-    if (d->sharpnessOption) {
+    if (d->sharpnessOption && d->sharpnessOption->alignOutlineToPixels()) {
         qint32 x = 0;
         qint32 y = 0;
         qreal subPixelX = 0.0;

plugins/paintops/libpaintop/kis_pressure_sharpness_option.cpp

@@ -46,7 +46,12 @@ void KisPressureSharpnessOption::readOptionSetting(const KisPropertiesConfigurat
 
 void KisPressureSharpnessOption::apply(const KisPaintInformation &info, const QPointF &pt, qint32 &x, qint32 &y, qreal &xFraction, qreal &yFraction) const
 {
-    if (isChecked() && alignOutlineToPixels() && KisCurveOption::value() != 0.0) {
+    if (!isChecked() || KisCurveOption::value() == 0.0) {
+        // brush
+        KisPaintOp::splitCoordinate(pt.x(), &x, &xFraction);
+        KisPaintOp::splitCoordinate(pt.y(), &y, &yFraction);
+    }
+    else {
         qreal processedSharpness = computeSizeLikeValue(info);
 
         if (processedSharpness == 1.0) {
@@ -67,10 +72,6 @@ void KisPressureSharpnessOption::apply(const KisPaintInformation &info, const QP
             KisPaintOp::splitCoordinate(xf, &x, &xFraction);
             KisPaintOp::splitCoordinate(yf, &y, &yFraction);
         }
-    } else {
-        // brush
-        KisPaintOp::splitCoordinate(pt.x(), &x, &xFraction);
-        KisPaintOp::splitCoordinate(pt.y(), &y, &yFraction);
     }
 }