Reduce overhead of painting balloon tooltip background

Instead of calculating the area loop over all parts (the round rect and triangle)
to fill.

core/src/main/java/com/github/weisj/darklaf/components/border/BubbleBorder.java

@@ -1,7 +1,7 @@
 /*
  * MIT License
  *
- * Copyright (c) 2019-2021 Jannis Weis
+ * Copyright (c) 2019-2022 Jannis Weis
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
  * associated documentation files (the "Software"), to deal in the Software without restriction,
@@ -270,29 +270,46 @@ public class BubbleBorder extends AbstractBorder {
         return getBorderInsets(c);
     }
 
-    public Area getBubbleArea(final float x, final float y, final float width, final float height, final float adj) {
+    public Shape[] getBubbleShapes(final float x, final float y, final float width, final float height,
+            final float adj) {
         float w = width - 2 * adj;
         float h = height - 2 * adj;
+        RoundRectangle2D.Float bubble = calculateBubbleRect(x + adj, y + adj, w, h);
+        final Shape[] shapes = new Shape[pointerSide != Alignment.CENTER ? 2 : 1];
+        shapes[0] = calculateBubbleRect(x + adj, y + adj, w, h);
+        if (pointerSide != Alignment.CENTER) {
+            shapes[1] = calculatePointerShape(adj, w, h, bubble);
+        }
+        return shapes;
+    }
+
+    private Shape calculatePointerShape(final float adj, final float w, final float h,
+            final RoundRectangle2D.Float bubble) {
         double pSize = getPointerSize() - adj;
         double pWidth = getPointerWidth() - 2 * adj;
+        double pointerPad = calculatePointerPad(w, h, pointerSide);
+        switch (pointerSide) {
+            case SOUTH_EAST:
+            case NORTH_EAST:
+                pointerPad += adj;
+                break;
+            case NORTH_WEST:
+            case SOUTH_WEST:
+                pointerPad -= adj;
+                break;
+            default:
+                break;
+        }
+        return creatPointerShape(pointerPad, pSize, pWidth, bubble);
+    }
+
+    public Area getBubbleArea(final float x, final float y, final float width, final float height, final float adj) {
+        float w = width - 2 * adj;
+        float h = height - 2 * adj;
         RoundRectangle2D.Float bubble = calculateBubbleRect(x + adj, y + adj, w, h);
         final Area area = new Area(bubble);
         if (pointerSide != Alignment.CENTER) {
-            double pointerPad = calculatePointerPad(w, h, pointerSide);
-            switch (pointerSide) {
-                case SOUTH_EAST:
-                case NORTH_EAST:
-                    pointerPad += adj;
-                    break;
-                case NORTH_WEST:
-                case SOUTH_WEST:
-                    pointerPad -= adj;
-                    break;
-                default:
-                    break;
-            }
-            Path2D pointer = creatPointerShape(pointerPad, pSize, pWidth, bubble);
-            area.add(new Area(pointer));
+            area.add(new Area(calculatePointerShape(adj, w, h, bubble)));
         }
         return area;
     }

core/src/main/java/com/github/weisj/darklaf/ui/tooltip/DarkToolTipUI.java

@@ -1,7 +1,7 @@
 /*
  * MIT License
  *
- * Copyright (c) 2019-2021 Jannis Weis
+ * Copyright (c) 2019-2022 Jannis Weis
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
  * associated documentation files (the "Software"), to deal in the Software without restriction,
@@ -22,7 +22,6 @@ package com.github.weisj.darklaf.ui.tooltip;
 
 import java.awt.*;
 import java.awt.event.*;
-import java.awt.geom.Area;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
 
@@ -43,7 +42,9 @@ import com.github.weisj.darklaf.util.PropertyKey;
 import com.github.weisj.darklaf.util.graphics.GraphicsContext;
 import com.github.weisj.darklaf.util.graphics.GraphicsUtil;
 
-/** @author Jannis Weis */
+/**
+ * @author Jannis Weis
+ */
 public class DarkToolTipUI extends BasicToolTipUI
         implements PropertyChangeListener, HierarchyListener, ToolTipConstants {
 
@@ -193,8 +194,10 @@ public class DarkToolTipUI extends BasicToolTipUI
         GraphicsContext context = GraphicsUtil.setupAntialiasing(g);
         g.setColor(c.getBackground());
         if (!isPlain && c.getBorder() instanceof DarkTooltipBorder) {
-            Area area = ((DarkTooltipBorder) c.getBorder()).getBackgroundArea(c, c.getWidth(), c.getHeight());
-            ((Graphics2D) g).fill(area);
+            for (Shape shape : ((DarkTooltipBorder) c.getBorder()).getBackgroundShapes(c, c.getWidth(),
+                    c.getHeight())) {
+                ((Graphics2D) g).fill(shape);
+            }
         } else {
             PaintUtil.fillRect(g, 0, 0, c.getWidth(), c.getHeight());
         }
@@ -280,9 +283,11 @@ public class DarkToolTipUI extends BasicToolTipUI
     public boolean contains(final JComponent c, final int x, final int y) {
         Border b = c.getBorder();
         if (b instanceof DarkTooltipBorder) {
-            Area insideArea =
-                    ((DarkTooltipBorder) b).getBackgroundArea(toolTip, toolTip.getWidth(), toolTip.getHeight());
-            return insideArea.contains(x, y);
+            for (Shape shape : ((DarkTooltipBorder) b).getBackgroundShapes(
+                    toolTip, toolTip.getWidth(), toolTip.getHeight())) {
+                if (shape.contains(x, y)) return true;
+            }
+            return false;
         } else {
             return super.contains(c, x, y);
         }

core/src/main/java/com/github/weisj/darklaf/ui/tooltip/DarkTooltipBorder.java

@@ -60,13 +60,13 @@ public class DarkTooltipBorder implements Border, AlignableTooltipBorder {
         paintShadow = UIManager.getBoolean("ToolTip.paintShadow");
     }
 
-    public Area getBackgroundArea(final Component c, final int width, final int height) {
+    public Shape[] getBackgroundShapes(final Component c, final int width, final int height) {
         if (isPlain(c)) {
-            return new Area(new Rectangle(0, 0, width, height));
+            return new Area[] {new Area(new Rectangle(0, 0, width, height))};
         }
         Insets ins = shadowBorder.getBorderInsets(null);
         adjustInsets(ins);
-        return bubbleBorder.getBubbleArea(ins.left, ins.top, width - ins.left - ins.right,
+        return bubbleBorder.getBubbleShapes(ins.left, ins.top, width - ins.left - ins.right,
                 height - ins.top - ins.bottom, bubbleBorder.getThickness() / 3f);
     }