Checkstyle: LambdaBodyLength

Author: aterai

examples/FocusBorderAnimation/src/java/example/MainPanel.java

@@ -5,6 +5,7 @@
 package example;
 
 import java.awt.*;
+import java.awt.event.ActionEvent;
 import java.awt.event.FocusEvent;
 import java.awt.event.FocusListener;
 import java.awt.geom.Path2D;
@@ -83,32 +84,7 @@ class AnimatedBorder extends EmptyBorder {
 
   protected AnimatedBorder(JComponent c) {
     super(BORDER, BORDER, BORDER + BOTTOM_SPACE, BORDER);
-    animator.addActionListener(e -> {
-      if (startTime < 0) {
-        startTime = System.currentTimeMillis();
-      }
-      long playTime = System.currentTimeMillis() - startTime;
-      double progress = playTime / PLAY_TIME;
-      boolean stop = progress > 1d || points.isEmpty();
-      if (stop) {
-        startTime = -1L;
-        ((Timer) e.getSource()).stop();
-        c.repaint();
-        return;
-      }
-      Point2D pos = new Point2D.Double();
-      pos.setLocation(points.get(0));
-      borderPath.reset();
-      borderPath.moveTo(pos.getX(), pos.getY());
-      int idx = Math.min(Math.max(0, (int) (points.size() * progress)), points.size() - 1);
-      for (int i = 0; i <= idx; i++) {
-        pos.setLocation(points.get(i));
-        borderPath.lineTo(pos.getX(), pos.getY());
-        borderPath.moveTo(pos.getX(), pos.getY());
-      }
-      borderPath.closePath();
-      c.repaint();
-    });
+    animator.addActionListener(e -> animation(c, e));
     c.addFocusListener(new FocusListener() {
       @Override public void focusGained(FocusEvent e) {
         Rectangle r = c.getBounds();
@@ -131,6 +107,33 @@ protected AnimatedBorder(JComponent c) {
     });
   }
 
+  private void animation(JComponent c, ActionEvent e) {
+    if (startTime < 0) {
+      startTime = System.currentTimeMillis();
+    }
+    long playTime = System.currentTimeMillis() - startTime;
+    double progress = playTime / PLAY_TIME;
+    boolean stop = progress > 1d || points.isEmpty();
+    if (stop) {
+      startTime = -1L;
+      ((Timer) e.getSource()).stop();
+      c.repaint();
+      return;
+    }
+    Point2D pos = new Point2D.Double();
+    pos.setLocation(points.get(0));
+    borderPath.reset();
+    borderPath.moveTo(pos.getX(), pos.getY());
+    int idx = Math.min(Math.max(0, (int) (points.size() * progress)), points.size() - 1);
+    for (int i = 0; i <= idx; i++) {
+      pos.setLocation(points.get(i));
+      borderPath.lineTo(pos.getX(), pos.getY());
+      borderPath.moveTo(pos.getX(), pos.getY());
+    }
+    borderPath.closePath();
+    c.repaint();
+  }
+
   @Override public void paintBorder(Component c, Graphics g, int x, int y, int w, int h) {
     super.paintBorder(c, g, x, y, w, h);
     Graphics2D g2 = (Graphics2D) g.create();

examples/TransformedShape/src/java/example/MainPanel.java

@@ -11,6 +11,7 @@
 import java.awt.font.TextLayout;
 import java.awt.geom.AffineTransform;
 import java.awt.geom.Rectangle2D;
+import java.util.logging.Logger;
 import javax.swing.*;
 
 public final class MainPanel extends JPanel {
@@ -30,7 +31,7 @@ private static void createAndShowGui() {
     } catch (UnsupportedLookAndFeelException ignored) {
       Toolkit.getDefaultToolkit().beep();
     } catch (ClassNotFoundException | InstantiationException | IllegalAccessException ex) {
-      ex.printStackTrace();
+      Logger.getGlobal().severe(ex::getMessage);
       return;
     }
     JFrame frame = new JFrame("@title@");
@@ -55,25 +56,27 @@ protected FontRotateAnimation(String str) {
     FontRenderContext frc = new FontRenderContext(null, true, true);
     Shape outline = new TextLayout(str, font, frc).getOutline(null);
     shape = outline;
-    animator.addActionListener(e -> {
-      repaint(shape.getBounds()); // clear prev
-      Rectangle2D b = outline.getBounds2D();
-      double ax = b.getCenterX();
-      double ay = b.getCenterY();
-      AffineTransform at = AffineTransform.getRotateInstance(Math.toRadians(rotate), ax, ay);
-      double cx = getWidth() / 2d - ax;
-      double cy = getHeight() / 2d - ay;
-      AffineTransform toCenterAt = AffineTransform.getTranslateInstance(cx, cy);
-
-      Shape s1 = at.createTransformedShape(outline);
-      shape = toCenterAt.createTransformedShape(s1);
-      repaint(shape.getBounds());
-      // rotate = rotate >= 360 ? 0 : rotate + 2;
-      rotate = (rotate + 2) % 360;
-    });
+    animator.addActionListener(e -> rotate(outline));
     animator.start();
   }
 
+  private void rotate(Shape outline) {
+    repaint(shape.getBounds()); // clear prev
+    Rectangle2D b = outline.getBounds2D();
+    double ax = b.getCenterX();
+    double ay = b.getCenterY();
+    AffineTransform at = AffineTransform.getRotateInstance(Math.toRadians(rotate), ax, ay);
+    double cx = getWidth() / 2d - ax;
+    double cy = getHeight() / 2d - ay;
+    AffineTransform toCenterAt = AffineTransform.getTranslateInstance(cx, cy);
+
+    Shape s1 = at.createTransformedShape(outline);
+    shape = toCenterAt.createTransformedShape(s1);
+    repaint(shape.getBounds());
+    // rotate = rotate >= 360 ? 0 : rotate + 2;
+    rotate = (rotate + 2) % 360;
+  }
+
   @Override public void updateUI() {
     removeHierarchyListener(listener);
     super.updateUI();