Expose TypographyUtils#isPdfCalligraphAvailable()

This allows easily checking if layout is aware of pdfCalligraph
being present in classpath

DEVSIX-3085

Author: Snipx

layout/src/main/java/com/itextpdf/layout/renderer/TextRenderer.java

@@ -568,7 +568,7 @@ public LayoutResult layout(LayoutContext layoutContext) {
     public void applyOtf() {
         updateFontAndText();
         Character.UnicodeScript script = this.<Character.UnicodeScript>getProperty(Property.FONT_SCRIPT);
-        if (!otfFeaturesApplied && TypographyUtils.isTypographyModuleInitialized() && text.start < text.end) {
+        if (!otfFeaturesApplied && TypographyUtils.isPdfCalligraphAvailable() && text.start < text.end) {
             if (hasOtfFont()) {
                 Object typographyConfig = this.<Object>getProperty(Property.TYPOGRAPHY_CONFIG);
                 Collection<Character.UnicodeScript> supportedScripts = null;

layout/src/main/java/com/itextpdf/layout/renderer/TypographyUtils.java

@@ -47,25 +47,24 @@ This file is part of the iText (R) project.
 import com.itextpdf.io.font.TrueTypeFont;
 import com.itextpdf.io.font.otf.Glyph;
 import com.itextpdf.io.font.otf.GlyphLine;
+import com.itextpdf.io.util.MessageFormatUtil;
 import com.itextpdf.kernel.font.PdfFont;
 import com.itextpdf.layout.property.BaseDirection;
 import com.itextpdf.layout.property.Property;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.lang.reflect.AccessibleObject;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Method;
-import com.itextpdf.io.util.MessageFormatUtil;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-final class TypographyUtils {
+public final class TypographyUtils {
 
     private static final Logger logger = LoggerFactory.getLogger(TypographyUtils.class);
 
@@ -123,6 +122,17 @@ final class TypographyUtils {
         SUPPORTED_SCRIPTS = supportedScripts;
     }
 
+    private TypographyUtils() {
+    }
+
+    /**
+     * Checks if layout module can access pdfCalligraph
+     * @return <code>true</code> if layout can access pdfCalligraph and <code>false</code> otherwise
+     */
+    public static boolean isPdfCalligraphAvailable() {
+        return TYPOGRAPHY_MODULE_INITIALIZED;
+    }
+
     static void applyOtfScript(FontProgram fontProgram, GlyphLine text, Character.UnicodeScript script, Object typographyConfig) {
         if (!TYPOGRAPHY_MODULE_INITIALIZED) {
             logger.warn(typographyNotFoundException);
@@ -247,10 +257,6 @@ static Collection<Character.UnicodeScript> getSupportedScripts(Object typography
         }
     }
 
-    static boolean isTypographyModuleInitialized() {
-        return TYPOGRAPHY_MODULE_INITIALIZED;
-    }
-
     private static Object callMethod(String className, String methodName, Class[] parameterTypes, Object... args) {
         return callMethod(className, methodName, (Object) null, parameterTypes, args);
     }

layout/src/test/java/com/itextpdf/layout/renderer/TypographyUtilsTest.java

@@ -0,0 +1,59 @@
+/*
+    This file is part of the iText (R) project.
+    Copyright (c) 1998-2019 iText Group NV
+    Authors: iText Software.
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License version 3
+    as published by the Free Software Foundation with the addition of the
+    following permission added to Section 15 as permitted in Section 7(a):
+    FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
+    ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
+    OF THIRD PARTY RIGHTS
+
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.
+    See the GNU Affero General Public License for more details.
+    You should have received a copy of the GNU Affero General Public License
+    along with this program; if not, see http://www.gnu.org/licenses or write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA, 02110-1301 USA, or download the license from the following URL:
+    http://itextpdf.com/terms-of-use/
+
+    The interactive user interfaces in modified source and object code versions
+    of this program must display Appropriate Legal Notices, as required under
+    Section 5 of the GNU Affero General Public License.
+
+    In accordance with Section 7(b) of the GNU Affero General Public License,
+    a covered work must retain the producer line in every PDF that is created
+    or manipulated using iText.
+
+    You can be released from the requirements of the license by purchasing
+    a commercial license. Buying such a license is mandatory as soon as you
+    develop commercial activities involving the iText software without
+    disclosing the source code of your own applications.
+    These activities include: offering paid services to customers as an ASP,
+    serving PDFs on the fly in a web application, shipping iText with a closed
+    source product.
+
+    For more information, please contact iText Software Corp. at this
+    address: [email protected]
+ */
+package com.itextpdf.layout.renderer;
+
+import com.itextpdf.test.ExtendedITextTest;
+import com.itextpdf.test.annotations.type.UnitTest;
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+@Category(UnitTest.class)
+public class TypographyUtilsTest extends ExtendedITextTest {
+
+    @Test
+    public void verifyPdfCalligraphIsNotAvailable() {
+        Assert.assertFalse(TypographyUtils.isPdfCalligraphAvailable());
+    }
+
+}