Add width and height calculation

DEVSIX-8365

Author: guustysebie

kernel/src/main/java/com/itextpdf/kernel/pdf/canvas/parser/clipper/ClipperBridge.java

@@ -261,6 +261,26 @@ public static boolean addPolylineSubjectToClipper(IClipper clipper, com.itextpdf
         return clipper.addPath(new Path(convertToLongPoints(new ArrayList<>(Arrays.asList(lineVertices)))), IClipper.PolyType.SUBJECT, false);
     }
 
+    /**
+     * Calculates the width of the rectangle represented by the {@link LongRect} object.
+     * @param rect the {@link LongRect} object representing the rectangle.
+     *
+     * @return the width of the rectangle.
+     */
+    public static float longRectCalculateWidth(LongRect rect) {
+        return (float) (Math.abs(rect.left - rect.right) / ClipperBridge.floatMultiplier);
+    }
+
+    /**
+     * Calculates the height of the rectangle represented by the {@link LongRect} object.
+     * @param rect the {@link LongRect} object representing the rectangle.
+     *
+     * @return the height of the rectangle.
+     */
+    public static float longRectCalculateHeight(LongRect rect) {
+        return (float) (Math.abs(rect.top - rect.bottom) / ClipperBridge.floatMultiplier);
+    }
+
     static void addContour(com.itextpdf.kernel.geom.Path path, List<Point.LongPoint> contour, boolean close) {
         List<com.itextpdf.kernel.geom.Point> floatContour = convertToFloatPoints(contour);
         com.itextpdf.kernel.geom.Point point = floatContour.get(0);

kernel/src/test/java/com/itextpdf/kernel/pdf/canvas/parser/clipper/ClipperBridgeTest.java

@@ -106,6 +106,19 @@ public void getEndTypeTest() {
         Assert.assertEquals(EndType.OPEN_ROUND, ClipperBridge.getEndType(LineCapStyle.ROUND));
     }
 
+    @Test
+    public void longRectWidthTest() {
+        LongRect longRect = new LongRect(14900000000000000L, 21275000000000000L, 71065802001953128L, 71075000000000000L);
+        Assert.assertEquals(561.658, ClipperBridge.longRectCalculateWidth(longRect), 0.001f);
+    }
+
+
+    @Test
+    public void longRectHeightTest() {
+        LongRect longRect = new LongRect(14900000000000000L, 21275000000000000L, 71065802001953128L, 71075000000000000L);
+        Assert.assertEquals(498, ClipperBridge.longRectCalculateHeight(longRect), 0.001f);
+    }
+
     private boolean areShapesEqual(IShape expected, IShape actual) {
         if (expected == actual) {
             return true;